Merge pull request #412 from aclist/fix/deck-unfullscreen-dimensions

fix: set explicitly safe dimensions for Steam Deck

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
-## Added
+## [7.0.0] Unreleased
+### Added
 - Setup wizard
 - Changelog text wrapping and formatting
 - Changelog ships with source
@@ -40,8 +41,11 @@
 - Preboot progress dialog
 - Choose to jump into splash screen instead of server
 - Collapsible connection panel
+- Play offline (load mods directly)
+- Generate Steam shortcuts and cover art
+- Warn user if background downloads are disabled
 
-## Changed
+### Changed
 - Conform to PEP 440 versioning for beta versions
 - Reduce padding on keys button
 - Boldface breadcrumbs
@@ -56,59 +60,60 @@
 - Disable overlay scrollbars on server tables
 - Reduce size of geolocation DB on disk (~100MB)
 - Enable LAN page Empty/Full filters on first run of app
+- Propagate subscribed mods to Steam client
 
-## Dropped
+### Dropped
 - Debug mode
 - Branch switching
 - Manual mod install mode (describe rationale)
 - Force update mods
 
-## Fixed
+### Fixed
 - Longstanding issue with left clicks not registering as tree selection changes after spamming keyboard input
 - Center server title text on server dialogs
 - Rare segfaults when changing maps (threading)
 - Moved dialogs out of threads
 
-## Unreleased
+### Unreleased
 - Load offline mods
 - Local documentation
 - Raw debug command in context menu
 
-## Developer-facing
+### Developer-facing
 - Add pyproject.toml file
 - Show deprecation warnings
 - Options -> Dev page
 
 ## [6.0.5] 2026-05-17
-## Changed
+### Changed
 - Update symlink hash logic to align with DZGUI 7 beta
 - Update A2S helper to latest commit
 
 ## [6.0.4] 2026-04-13
-## Fixed
+### Fixed
 - Update A2S module checksums to support servers with missing description field
 
 ## [6.0.3] 2026-04-12
-## Fixed
+### Fixed
 - Use GLibUnix namespace where available when setting up SIGINT callback
 
 ## [6.0.2] 2026-01-26
-## Fixed
+### Fixed
 - Explicitly use Python 3.13 when calling subprocesses
 - Raise error correctly from module
 - Do not spawn dialogs from inside of thread when fetching prereqs
-## Changed
+### Changed
 - Optimize time complexity of startup checks
 - Optimize coordinate calculation by using local records first
 - Rename some internal functions
 - Wrap entire startup process in dialog
 
 ## [6.0.1] 2026-01-16
-## Fixed
+### Fixed
 - Explicitly use Python 3.13 when calling subprocesses
 
 ## [6.0.0] 2026-01-14
-## Added
+### Added
 - Support DayZ Experimental
 - Ping display on server tables
 - Save descriptive text notes on a per-server basis
@@ -134,7 +139,7 @@
 - Commandline usage help text (GaryBlackbourne)
 - More descriptive help dialogs when initial dependencies are missing
 
-## Fixed
+### Fixed
 - Script failing to start when remote endpoints are unavailable (GaryBlackbourne)
 - Key stickiness when quickly navigating through entries in tables
 - Servers returning malformed A2S_INFO blocking server browser from loading
@@ -173,7 +178,7 @@
 - Path discovery during first-time setup when parsing filepaths with whitespaces
 - First-time setup dialog continuously triggering when DayZ install path had whitespaces in it
 
-## Changed
+### Changed
 - Require Python 3.13
 - Reduced global API cooldown from 60s to 30s
 - Clarify dialog messages when DayZ path could not be found
@@ -185,50 +190,50 @@
 - Rewrote distance calculation module (GaryBlackbourne)
 - Changed preferred client setting from radio toggle to combobox
 
-## Dropped
+### Dropped
 - Ping readout in statusbar
 - Extraneous information from right statusbar
 
 ## [5.8.3] 2026-01-04
-## Fixed
+### Fixed
 - Normalize checksum numbers and dates
 
 ## [5.8.2] 2026-01-04
-## Fixed
+### Fixed
 - Fix regression in symlink routine introduced by previous hotfix
 
 ## [5.8.1] 2025-12-27
-## Fixed
+### Fixed
 - Path discovery during first-time setup when parsing filepaths with whitespaces
 - First-time setup dialog continuously triggering when DayZ install path had whitespaces in it
 
 ## [5.8.0] 2025-07-06
-## Added
+### Added
 - Filter servers by official/unofficial status
 - Automatically fetch geolocation records
-## Changed
+### Changed
 - Updated internal versioning of helper files
-## Fixed
+### Fixed
 - Corrected erroneous 2024 date in prior changelog entries
 
 ## [5.7.0] 2025-04-17
-## Added
+### Added
 - Save application dimensions when quitting and restore on subsequent boot
-## Fixed
+### Fixed
 - Issues with the window exceeding the bounds of the screen when displaying some table contexts
-## Changed
+### Changed
 - More direct server ping query method that should return marginally more accurate times
 
 ## [5.6.7] 2025-04-04
-## Dropped
+### Dropped
 - Removed extraneous pre-boot API checks that could cause error messages to be printed if the user had not set up an API key yet
 
 ## [5.6.6] 2025-03-16
-## Changed
+### Changed
 - Update IP database records for 2025-03
 
 ## [5.6.5] 2025-03-04
-## Fixed
+### Fixed
 - Livonia server results being dropped from batch queries
 
 ## [5.6.4] 2025-02-10

CONTRIBUTING.md

@@ -0,0 +1,69 @@
+# Introduction
+
+Thank you for your interest in DZGUI!
+
+This guide goes over development conventions and best practices for contributors.
+If you are a developer, you can skip to the end.
+
+# Requesting help
+
+If you encounter a problem with DZGUI, you can submit tickets on the GitHub
+[issue tracker](https://github.com/aclist/dztui/issues) under the
+`troubleshooting` tag.
+
+# How can I help the project?
+
+There are several ways to help this project.
+1. Report bugs that you find
+2. Request features that you would like
+3. Contribute features and fixes to the codebase
+4. Contribute documentation to the project
+
+Before making any contribution, please read the `CODE_OF_CONDUCT.md` and act
+accordingly.
+
+## Submitting a ticket
+
+Navigate to the GitHub [issue tracker](https://github.com/aclist/dztui/issues).
+From there, follow the onscreen prompts. You will be asked questions such as:
+
+- What version are you using?
+- What distribution are you using?
+- What is the issue that you found?
+- How can we reproduce the issue?
+
+You can also attach screenshots, logs, or other data that can help us.
+
+## Requesting a feature
+
+You can also request features via the same issue tracker. It is good practice to
+first search for your idea to see if a similar one has already been posted.
+If not, open a ticket where you describe your feature and its possible benefits.
+
+Please note that this is a community project, so it takes time for us to develop
+features. Putting in a feature request does not mean that it will be implemented,
+but we will do our best to support as many cool ideas as possible.
+
+## Contributing code or documentation
+
+If you would like to assist with an issue on the issue tracker or
+contribute a new change, please follow the guidelines below.
+
+Fork this repository and check out the code up to the `dzgui7` (development) branch.
+
+The following naming conventions apply for PRs:
+- fix/<your-fix> - patch/hotfix branches
+- feat/<your-feature> - feature branches
+- doc/<your-doc-branch> - documentation branches
+- infra/<your-infra-branch> - infrastructure branches
+
+Implement your changes and test them locally. If they work, you may
+open a merge request, and then we review your changes. If everything is OK, it
+will be merged to `dzgui7`. After sufficient changes are consolidated into a new release,
+this branch will be tagged to a certain point in time and a binary release published.
+
+It is recommended to follow
+[Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/), as this
+integrates well with tooling and helps the project review your code.
+
+Please see DEVELOPERS.md for further details.

README.md

@@ -24,13 +24,8 @@ Please refer to the documentation for installation and setup instructions:
 
 Geolocation records from [DB-IP](https://db-ip.com) under [CC 4.0 license](https://creativecommons.org/licenses/by/4.0/)
 
-This tool uses [python-a2s](https://github.com/Yepoleb/python-a2s) and [dayzquery](https://github.com/Yepoleb/dayzquery) as submodules; licenses for these submodules can be found in the LICENSES file
-of the project root.
-
-Both the geolocation records and submodules listed above are not shipped with the source code, but are retrieved and assembled at runtime.
-
-Finally, executable versions of DZGUI shipped as release binaries are thin wrappers around the Python interpreter, and also retrieve and assemble the above dependencies at runtime on the end-user's
-machine, rather than using pre-compiled source code. Users wishing to review these dependencies can inspect the 'pyproject.toml' manifest in the project root.
+Executable versions of DZGUI published as release binaries ship with various runtime dependencies and the Python interpreter built in.
+Users wishing to review the licenses to these components can inspect the `LICENSE` file located in the release tarball.
 
 ## Disclaimer
 

docs/licenses/vdf/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2015 Rossen Georgiev <rossen@rgp.io>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

docs/source/dzgui7.rst

@@ -26,7 +26,7 @@ You can install it via the following set of commands:
 .. code:: console
 
    sudo apt update
-   sudo apt install libgirepository-2.0
+   sudo apt install libgirepository-2.0-0
 
 Next steps
 ---------------

dzgui/api/acf.py

@@ -0,0 +1,119 @@
+import logging
+import re
+
+from collections.abc import Iterator
+from pathlib import Path
+from typing import Any
+from warnings import deprecated
+
+from dzgui.const.constants import APP_NAME
+
+logger = logging.getLogger(APP_NAME)
+
+
+class ACF:
+    def __init__(self, file: Path) -> None:
+        super().__init__()
+
+        self.dict: dict[str, Any]
+        self.load(file)
+
+    def as_dict(self) -> dict[str, Any]:
+        return self.dict
+
+    def load(self, file: Path) -> None:
+        delimiter = r"\t\t"
+        lines = []
+        # TODO: illegal file handling
+        with open(file, "r", encoding="utf-8") as f:
+            for line in f:
+                line = line.strip()
+                if not line:
+                    continue
+                els = re.split(delimiter, line, maxsplit=1)
+                lines.append(els)
+        self.dict = self.parse(iter(lines))
+
+    @classmethod
+    def enquote(cls, s: str) -> str:
+        return f'"{s}"'
+
+    @classmethod
+    def dequote(cls, s: str) -> str:
+        return s.rstrip('"').lstrip('"')
+
+    def parse(self, lines: Iterator[list[str]]) -> dict[str, str]:
+        acf: dict[str, Any] = {}
+        try:
+            while True:
+                line = next(lines)
+                if len(line) == 1:
+                    key = line[0]
+                    if key == "{":
+                        continue
+                        return acf
+                    elif key == "}":
+                        return acf
+                    else:
+                        key = self.dequote(key)
+                        acf[key] = self.parse(lines)
+                elif len(line) == 2:
+                    k, v = line
+                    k = self.dequote(k)
+                    v = self.dequote(v)
+                    try:
+                        n = list(acf.keys())[-1]
+                        acf[n][k] = v
+                    except Exception:
+                        acf[k] = v
+        except StopIteration:
+            return acf
+
+    def get_allows_downloads(self) -> int | None:
+        try:
+            # TODO: consider coercing strs to ints on initial import
+            flag = int(self.dict["AppState"]["AllowOtherDownloadsWhileRunning"])
+            return flag
+        except Exception as e:
+            logger.critical(e)
+            return None
+
+
+@deprecated(
+    "Serializing workshop files is no longer supported, use dzgui.api.steam.unsubscribe"
+)
+class WorkshopACF(ACF):
+    def __init__(self, file: Path) -> None:
+        super().__init__(file)
+
+    def unpack(self, d: dict, lines: list[Any] = []) -> str:
+        t1 = "AppWorkshop"
+        t2 = ("WorkshopItemsInstalled", "WorkshopItemDetails")
+        for k, v in d.items():
+            if type(v) is dict:
+                if k in t1:
+                    self.indent = 0
+                elif k in t2:
+                    self.indent = 1
+                else:
+                    self.indent = 2
+                pref = "\t" * self.indent
+                lines.append(pref + self.enquote(k))
+                lines.append(pref + "{")
+                self.unpack(v, lines)
+                lines.append(pref + "}")
+            else:
+                pref = "\t" * (self.indent + 1)
+                lines.append(pref + self.enquote(k) + "\t\t" + self.enquote(v))
+        s = ""
+        for line in lines:
+            s += line + "\n"
+        return s
+
+    def to_file(self, file: Path) -> None:
+        s = self.unpack(self.dict)
+        file.write_text(s)
+
+    def delete(self, modid: int) -> None:
+        del self.dict["AppWorkshop"]["WorkshopItemsInstalled"][modid]
+        del self.dict["AppWorkshop"]["WorkshopItemDetails"][modid]

dzgui/api/mods.py

@@ -1,18 +1,18 @@
 import hashlib
 import logging
-import shlex
+import re
 
 from concurrent.futures import wait
 from concurrent.futures import ThreadPoolExecutor
 from dataclasses import dataclass
 from pathlib import Path
 
-import dzgui.api.pefile as PeFile
+from dzgui.api.steam import get_app_path
 from dzgui.api.servers import get_rules, fqip_to_record
 from dzgui.const.constants import (
     APP_NAME,
     APPID_DAYZ,
-    LIBRARYFOLDERS_PATH,
+    DAYZ_COMMUNITY_ROOT,
     WORKSHOP_PATH,
 )
 
@@ -39,7 +39,7 @@ def get_local_mod_ids(steam_path: Path) -> list[int]:
 
 
 def get_local_mod_path(steam_path: Path) -> Path:
-    p = PeFile.get_app_path(steam_path / Path(LIBRARYFOLDERS_PATH), APPID_DAYZ)
+    p = get_app_path(steam_path, APPID_DAYZ)
     workshop_path = p / WORKSHOP_PATH
     return workshop_path
 
@@ -49,34 +49,33 @@ def get_local_mods(workshop_path: Path) -> list[Path]:
     return mods
 
 
-def parse_meta(file: Path) -> ModMeta | None:
-    mod = file / "meta.cpp"
-    if mod.exists() is False:
+def is_mission(path: Path) -> bool:
+    # TODO: parse integrity of other files
+    parent = path.parent.name
+    if parent != DAYZ_COMMUNITY_ROOT:
+        return False
+    file = path / "init.c"
+    return file.exists()
+
+
+def tokenize(mod: Path) -> dict[str, Any] | None:
+    file = mod.joinpath("meta.cpp")
+    delimiter = r"\s*=\s*"
+    modmeta = {}
+    try:
+        with open(file, "r", encoding="utf-8") as f:
+            for line in f:
+                line = line.strip().rstrip(";")
+                if not line:
+                    continue
+                els = re.split(delimiter, line, maxsplit=1)
+                if len(els) == 2:
+                    key, value = els
+                    modmeta[key.strip()] = value.strip('"')
+        return modmeta
+    except Exception as e:
+        logger.critical(e)
         return None
-    with open(file / "meta.cpp", "r") as f:
-        st = f.read()
-        lex = shlex.shlex(st)
-        lex.whitespace += "=;"
-        v = []
-        while True:
-            tok = lex.get_token()
-            if not tok:
-                break
-            if tok == "protocol" or tok == "publishedid":
-                ntok = lex.get_token()
-            elif tok == "timestamp":
-                # NOTE: some malformed .NET tick conversions result in numbers < 0
-                ntok = lex.get_token()
-                if ntok == "-":
-                    ntok += str(lex.get_token())
-            elif tok == "name":
-                ntok = lex.get_token()
-                if ntok is not None:
-                    ntok = ntok.split('"')[1]
-            if ntok is not None:
-                v.append(ntok)
-        meta = ModMeta(*v)
-        return meta
 
 
 def get_mod_size(path: Path) -> float:
@@ -87,49 +86,66 @@ def get_mod_size(path: Path) -> float:
     return size
 
 
-def get_delimited_mods(steam_path: Path) -> list[Any]:
-    workshop_path = get_local_mod_path(steam_path)
-    mods = get_local_mods(workshop_path)
+def get_custom_mods(path: Path) -> list[Any]:
+    # TODO: rename this function for clarity ("get local vs. get custom")
+    mods = get_local_mods(path)
+    # TODO: error handling
+    return parse_mods(mods, use_custom=True)
+
+
+def parse_mods(mods: list[Path], use_custom: bool = False) -> list[Any]:
     clean = []
     for mod in mods:
         mod_dir = mod.name
-        symlink = _hash(mod_dir)
-        # FIXME: malformed .cpp files could break this
-        # mention that mods may be downloading
-        meta = parse_meta(mod)
+        symlink = _hash(mod_dir, use_custom)
+        meta = tokenize(mod)
         if meta is None:
             continue
         size = get_mod_size(mod)
         # NOTE: final col is cell renderer highlight toggle
-        clean.append([meta.name, symlink, mod_dir, size, False])
+        clean.append([meta["name"], symlink, mod_dir, size, False])
     clean.sort(key=lambda row: str(row[0]).casefold())
     return clean
 
 
+def get_delimited_mods(steam_path: Path) -> list[Any]:
+    workshop_path = get_local_mod_path(steam_path)
+    mods = get_local_mods(workshop_path)
+    return parse_mods(mods)
+
+
 def get_missing_mods(local: list, remote: list) -> list:
     return [mod for mod in remote if mod not in local]
 
 
-def _hash(uid: str) -> str:
+def _hash(uid: str, use_custom: bool = False) -> str:
     md5 = hashlib.md5()
     md5.update(uid.encode("ascii"))
-    return "@" + md5.hexdigest()[:8]
+    prefix = "@C" if use_custom else "@"
+    return prefix + md5.hexdigest()[:8]
 
 
-def remove_stale_signatures(config: Path, versions: Path) -> None:
+def remove_stale_signatures(
+    config: Path, versions: Path, ids: list[int] | None = None
+) -> None:
     if versions.is_file() is False:
         logger.warning("Creating new version signatures file")
         versions.touch()
         return
+
     path = lookup(config, Preferences.DEFAULT)
     steam_path = Path(path)
-    ids = get_local_mod_ids(steam_path)
+    if ids is None:
+        local_ids = get_local_mod_ids(steam_path)
+
     with open(versions, "r") as f:
         lines = f.readlines()
-    for line in lines:
-        uid = int(line.split(",")[0])
-        if uid not in ids:
-            lines.remove(line)
+
+    if ids is None:
+        lines = [line for line in lines if int(line.split(",")[0]) in local_ids]
+    else:
+        lines = [line for line in lines if int(line.split(",")[0]) not in ids]
+
     with open(versions, "w") as f:
         for line in lines:
             f.write(line)

dzgui/api/pefile.py

@@ -1,4 +1,3 @@
-import json
 import struct
 
 from dataclasses import dataclass
@@ -12,9 +11,8 @@ from dzgui.const.constants import (
     APPNAME_DAYZ,
     APPNAME_DAYZ_EXP,
     DAYZ_BINARY,
-    LIBRARYFOLDERS_PATH,
 )
-from dzgui.api.steam import vdf2json
+from dzgui.api.steam import get_app_path
 
 # https://learn.microsoft.com/en-us/windows/win32/debug/pe-format
 endian = "<"
@@ -257,25 +255,6 @@ class PeFileError(Exception):
 
     pass
 
-
-class AppNotInstalledError(Exception):
-    """App not present in user's libraryfolders"""
-
-    pass
-
-
-class AppMovedError(Exception):
-    """VDF points to a nonexistent location on disk"""
-
-    pass
-
-
-class VDFLoadError(Exception):
-    """Malformed VDF or JSON conversion"""
-
-    pass
-
-
 def parse_version_number(data: BinaryIO) -> FileVersion:
     # https://learn.microsoft.com/en-us/windows/win32/api/verrsrc/ns-verrsrc-vs_fixedfileinfo
     minor = struct.unpack("<L", data.read(4))[0] >> 16 & 0xFFFF
@@ -419,37 +398,11 @@ def get_pefile_path(steam_path: Path, appid: int) -> Path:
     name = identifier[appid]
     binary = DAYZ_BINARY
 
-    app_path = get_app_path(steam_path / LIBRARYFOLDERS_PATH, appid)
+    app_path = get_app_path(steam_path, appid)
     pe_path = app_path / f"steamapps/common/{name}/{binary}"
     return pe_path
 
 
-def get_app_path(folders_path: Path, appid: int) -> Path:
-    app_path = None
-
-    try:
-        j = json.loads(vdf2json(folders_path))
-    except Exception:
-        raise VDFLoadError("Failed to parse libraryfolders")
-
-    for obj in j["libraryfolders"]:
-        if str(appid) in j["libraryfolders"][obj]["apps"]:
-            app_path = j["libraryfolders"][obj]["path"]
-            if Path(app_path).exists():
-                break
-
-    if app_path is None:
-        raise AppNotInstalledError(
-            f"Failed to find a libraryfolder for the appid {appid}"
-        )
-    if Path(app_path).exists() is False:
-        raise AppMovedError(
-            f"The location '{app_path}' pointed to by '{appid}' no longer exists and may have been changed on the disk."
-        )
-
-    return Path(app_path)
-
-
 def get_pretty_version(steam_path: Path, appid: int) -> str | None:
     try:
         pe_file_path = get_pefile_path(steam_path, appid)

dzgui/api/servers.py

@@ -289,13 +289,14 @@ def query_direct(ip: str, qport: int, timeout: float = 3.0) -> dict[str, Any] |
 
 
 def get_details(record: Record) -> Details:
+    # TODO: consolidate try/except statements
     ip = record.ip
     qport = record.qport
     default_str = strings.none_provided
 
     try:
         info = a2s.info((ip, qport))
-    except TimeoutError:
+    except (TimeoutError, a2s.exceptions.BrokenMessageError):
         return Details(None, default_str, False)
     try:
         rules = dayzquery.dayz_rules((ip, qport))

dzgui/api/shortcuts.py

@@ -0,0 +1,189 @@
+import binascii
+import ctypes
+import logging
+import shutil
+import vdf  # type: ignore
+
+from dataclasses import dataclass
+from importlib import resources
+from pathlib import Path
+from typing import Any
+
+from dzgui.api.steam import find_user_id_32
+from dzgui.const.constants import APP_NAME, APP_NAME_LOWER, IMAGES_PATH
+from dzgui.util.dirs import copy_dzgui_to_xdg_data
+from dzgui.util.strings import unknown
+
+logger = logging.getLogger(APP_NAME)
+
+
+@dataclass(slots=True, frozen=True)
+class ShortcutMetadata:
+    appname: str
+    appid: int
+    exe_path: str
+    start_dir: str
+    icon: str
+
+
+class Shortcuts:
+    def __init__(self, steam_path: Path) -> None:
+        self.user_config_path: Path
+        self.shortcuts_path = self.find_shortcuts_path(steam_path)
+        self._load_shortcuts(self.shortcuts_path)
+
+    @classmethod
+    def gen_bpid(cls, uid: str) -> int:
+        u = uid.encode()
+        encoded = binascii.crc32(u)
+        return encoded | 0x80000000
+
+    @classmethod
+    def gen_signed_appid(cls, appid: int) -> int:
+        return ctypes.c_int(appid).value
+
+    @classmethod
+    def gen_exe_uid(cls, appname: str, exe: Path) -> str:
+        wrapped_exe = f'"{exe}"'
+        return appname + wrapped_exe
+
+    def find_appname_by_unsigned_id(self, appid: int) -> str:
+        # NOTE: bitmask signed int back to 32-bit CRC
+        # varying client versions treat case sensitivity differently
+        try:
+            for key in self.shortcuts["shortcuts"].keys():
+                if self.shortcuts["shortcuts"][key]["appid"] & 0xFFFFFFFF == appid:
+                    try:
+                        return str(self.shortcuts["shortcuts"][key]["appname"])
+                    except Exception as e:
+                        logger.debug(e)
+                    try:
+                        return str(self.shortcuts["shortcuts"][key]["AppName"])
+                    except Exception as e:
+                        logger.debug(e)
+                    return unknown
+        except Exception as e:
+            logger.debug(e)
+        return unknown
+
+    def get_shortcuts(self) -> Any:
+        return self.shortcuts
+
+    def _load_shortcuts(self, path: Path) -> None:
+        try:
+            with open(path, "rb") as f:
+                shortcuts = vdf.binary_load(f)
+            self.shortcuts = shortcuts
+            logger.debug("Loaded shortcuts file")
+        except Exception as e:
+            logger.critical(e)
+            raise e
+
+    def find_shortcuts_path(self, steam_path: Path) -> Path:
+        uid = find_user_id_32(steam_path)
+        self.user_config_path = steam_path.joinpath(f"userdata/{uid}/config")
+        return self.user_config_path.joinpath("shortcuts.vdf")
+
+    def add_shortcut(
+        self, appname: str, start_dir: Path, exe_path: Path, icon: Path
+    ) -> None:
+        uid = self.gen_exe_uid(appname, exe_path)
+        self.bpid = self.gen_bpid(uid)
+        self.signed_appid = self.gen_signed_appid(self.bpid)
+
+        meta = ShortcutMetadata(
+            appname, self.signed_appid, str(exe_path), str(start_dir), str(icon)
+        )
+        entry = self._create_entry(meta)
+        self._insert_at_last_index(entry)
+
+    def add_grid_images(self, images: Path) -> None:
+        """
+        {BPID}_hero.png: hero (splash)
+        {BPID}p.ping: portrait boxart in library
+        {BPID}_logo.png: logo overlay on top of hero
+        {BPID}.png: legacy Big Picture/landscape image
+        """
+
+        grid_path = self.user_config_path.joinpath("grid")
+        for img in ("_hero", "p", "_logo"):
+            filename = str(self.bpid) + img
+            dest = grid_path.joinpath(filename).with_suffix(".png")
+            b = images.joinpath(img).with_suffix(".png").read_bytes()
+            dest.write_bytes(b)
+
+        # NOTE: legacy Big Picture header
+        b = images.joinpath("_hero.png").read_bytes()
+        dest = grid_path.joinpath(str(self.bpid)).with_suffix(".png")
+        dest.write_bytes(b)
+
+    def _insert_at_last_index(self, entry: dict[str, Any]) -> None:
+        try:
+            last = list(self.shortcuts["shortcuts"].keys())[-1]
+            n = int(last) + 1
+        except Exception:
+            n = 0
+        self.shortcuts["shortcuts"][str(n)] = entry
+
+    @classmethod
+    def _create_entry(cls, meta: ShortcutMetadata) -> dict[str, Any]:
+        """
+        https://developer.valvesoftware.com/wiki/Add_Non-Steam_Game
+        https://developer.valvesoftware.com/wiki/Steam_Library_Shortcuts
+
+        Key case is not internally consistent and varies between client versions
+        Most keys use Pascal case, but some do not
+
+        appid: signed int CRC
+        Exe: absolute path to the executable, must be wrapped in literal quotes
+        StartDir: directory the executable starts in, generally the parent
+        """
+
+        NEW_ENTRY: dict[str, Any] = {}
+        NEW_ENTRY["appid"] = meta.appid
+        NEW_ENTRY["AppName"] = meta.appname
+        NEW_ENTRY["Exe"] = f'"{meta.exe_path}"'
+        NEW_ENTRY["StartDir"] = f"{meta.start_dir}"
+        NEW_ENTRY["icon"] = meta.icon
+        NEW_ENTRY["ShortcutPath"] = ""
+        NEW_ENTRY["LaunchOptions"] = ""
+        NEW_ENTRY["IsHidden"] = 0
+        NEW_ENTRY["AllowDesktopConfig"] = 1
+        NEW_ENTRY["AllowOverlay"] = 1
+        NEW_ENTRY["OpenVR"] = 0
+        NEW_ENTRY["Devkit"] = 0
+        NEW_ENTRY["DevkitGameID"] = ""
+        NEW_ENTRY["DevkitOverrideAppID"] = 0
+        NEW_ENTRY["LastPlayTime"] = 0
+        NEW_ENTRY["FlatpakAppID"] = ""
+        NEW_ENTRY["sortas"] = ""
+        NEW_ENTRY["tags"] = {}
+        return NEW_ENTRY
+
+    def save_shortcuts(self) -> None:
+        try:
+            backup = self.shortcuts_path.with_suffix(".vdf.bak")
+            shutil.copy(self.shortcuts_path, backup)
+            with open(self.shortcuts_path, "wb") as f:
+                vdf.binary_dump(self.shortcuts, f)
+        except Exception as e:
+            logger.critical(e)
+
+
+def add_steam_shortcut(steam_path: Path, exe_path: Path) -> None:
+    try:
+        start_dir = exe_path.parent
+
+        traversable = resources.files(APP_NAME_LOWER).joinpath(IMAGES_PATH)
+        images = Path(str(traversable))
+        icon = images.joinpath("icon.png")
+
+        shortcuts = Shortcuts(Path(steam_path))
+        shortcuts.add_shortcut(APP_NAME, start_dir, exe_path, icon)
+        shortcuts.save_shortcuts()
+        shortcuts.add_grid_images(images)
+
+        copy_dzgui_to_xdg_data(exe_path)
+        logger.debug("Finished creating Steam shortcut")
+    except Exception as e:
+        logger.critical(e)

dzgui/api/steam.py

@@ -1,29 +1,59 @@
-import json
 import logging
 import os
+import psutil
 import requests
 import subprocess
+import vdf  # type: ignore
 
-from shlex import shlex
 from pathlib import Path
+from typing import Any, Union
+from warnings import deprecated
 
+from dzgui.api.acf import ACF
 from dzgui.init.prereqs import has_steam_client
 from dzgui.const.constants import (
+    APPID_DAYZ,
+    APPID_DAYZ_EXP,
     APP_NAME,
+    DAYZ_BINARY,
     DEBIAN_STEAM_PATH,
     DEFAULT_STEAM_PATH,
     FLATPAK_STEAM_PATH,
+    LIBRARYFOLDERS_PATH,
     UBUNTU_STEAM_PATH,
+    REQUEST_TIMEOUT,
     VDF_PATH,
 )
-from dzgui.const.endpoints import STEAM_PUBLISHED_FILES
+from dzgui.const.endpoints import (
+    APP_DETAILS,
+    SUB_ENDPOINT,
+    STEAM_PUBLISHED_FILES,
+    UNSUB_ENDPOINT,
+)
 from dzgui.strings import wizard
 from dzgui.util.bash import concat_bash_args
 
-
 logger = logging.getLogger(APP_NAME)
 
 
+class AppNotInstalledError(Exception):
+    """App not present in user's libraryfolders"""
+
+    pass
+
+
+class AppMovedError(Exception):
+    """VDF points to a nonexistent location on disk"""
+
+    pass
+
+
+class VDFLoadError(Exception):
+    """Malformed VDF or JSON conversion"""
+
+    pass
+
+
 def get_steam_paths() -> list[tuple[Path, str]]:
     paths = []
     if has_steam_client():
@@ -53,7 +83,8 @@ def get_steam_paths() -> list[tuple[Path, str]]:
 
 
 def concat_mods(mods: list[str]) -> str:
-    from dzgui.util.symlink import _hash
+    # TODO: circular import workaround
+    from dzgui.api.mods import _hash
 
     hashes = []
     for mod in mods:
@@ -68,26 +99,21 @@ def get_local_signatures(version_file: Path) -> dict[str, int]:
     for line in lines:
         data = line.split(",")
         _id = data[0]
-        _hash = int(data[1])
-        hashes[_id] = _hash
+        mod_hash = int(data[1])
+        hashes[_id] = mod_hash
     return hashes
 
 
-def enqueue_mod(client: str, mod: str, appid: int) -> None:
-    client_args = concat_bash_args(client)
-    subprocess.Popen([*client_args, "+workshop_download_item", str(appid), mod])
-
-
 def get_needs_update(
     version_file: Path, remote_hashes: list[tuple[str, str, int, int]]
 ) -> list[tuple[str, str, int, int]]:
-    local_hashes = get_local_signatures(version_file)
+    local_stamps = get_local_signatures(version_file)
     needs_update: list[tuple[str, str, int, int]] = []
-    for title, _id, _hash, size in remote_hashes:
-        if _id not in local_hashes:
-            needs_update.append((title, _id, _hash, size))
-        elif _hash != local_hashes[_id]:
-            needs_update.append((title, _id, _hash, size))
+    for title, _id, stamp, size in remote_hashes:
+        if _id not in local_stamps:
+            needs_update.append((title, _id, stamp, size))
+        elif stamp != local_stamps[_id]:
+            needs_update.append((title, _id, stamp, size))
         else:
             continue
     return needs_update
@@ -158,69 +184,244 @@ def load_to_menu(client: str, appid: int, name: str, mods: list[str]) -> int:
     return proc.returncode
 
 
+def launch_offline(
+    client: str, appid: int, name: str, mods: list[str], mission: str
+) -> int:
+    """Launch offline with specific mods/missions"""
+    symlinks = ";".join(mods)
+    client_args = concat_bash_args(client)
+    params = [
+        "-applaunch",
+        str(appid),
+        "-nolauncher",
+        "-nosplash",
+        "-skipintro",
+        f"-name={name}",
+        f"-mod={symlinks}",
+    ]
+    if len(mission) > 0:
+        arg = f"-mission={mission}"
+        params.append(arg)
+    proc = subprocess.run([*client_args, *params])
+    return proc.returncode
+
+def find_loginusers(path: Path) -> Path:
+    return path / "config" / "loginusers.vdf"
+
 def find_user_id(path: Path) -> str | None:
-    resolved_path = path / "config" / "loginusers.vdf"
+    resolved_path = find_loginusers(path)
     try:
-        vdf = vdf2json(resolved_path)
-        j = json.loads(vdf)
-        for user in j["users"]:
-            if j["users"][user]["MostRecent"] == "1":
-                return str(user)
-        return None
+        with open(resolved_path, "r") as f:
+            v = vdf.load(f)
+            # NOTE: beta client
+            # /package/beta
+            if len(v["users"]) == 1:
+                return str(list(v["users"].keys())[0])
+            for user in v["users"]:
+                if v["users"][user]["MostRecent"] == "1":
+                    return str(user)
+            return None
     except Exception as e:
-        logger.warn(e)
+        logger.debug(e)
         return None
 
 
-def vdf2json(path: Path) -> str:
-    def _istr(indent: int, string: str) -> str:
-        return (indent * "  ") + string
 
-    jbuf = "{\n"
-    indent = 1
-
-    with open(path, "r") as f:
-        st = f.read()
-    lex = shlex(st)
-
-    while True:
-        tok = lex.get_token()
-        if not tok:
-            return jbuf + "}\n"
-        if tok == "}":
-            indent -= 1
-            jbuf += _istr(indent, "}")
-            ntok = lex.get_token()
-            if ntok is not None:
-                lex.push_token(ntok)
-            if ntok and ntok != "}":
-                jbuf += ","
-            jbuf += "\n"
-        else:
-            ntok = lex.get_token()
-            if ntok == "{":
-                jbuf += _istr(indent, tok + ": {\n")
-                indent += 1
-            else:
-                if ntok is not None:
-                    jbuf += _istr(indent, tok + ": " + ntok)
-                    ntok = lex.get_token()
-                    if ntok is not None:
-                        lex.push_token(ntok)
-                    if ntok != "}":
-                        jbuf += ","
-                    jbuf += "\n"
+def find_user_id_32(path: Path) -> int:
+    uid = find_user_id(path)
+    if uid is None:
+        raise ValueError("Failed to parse a valid Steam32 ID")
+    return int(uid) & 0xFFFFFFFF
 
 
-def gen_shortcut() -> None:
-    # TODO:
-    """
-    during setup, prompt user to select matching user id from loginusers
-    show user account name, select outer steam id
-    steam/userdata/<steamid_32>/config/shortcuts.vdf
-    """
-    # STEAMID_MAGIC = 76561197960265728
-    # STEAMID_64 - STEAMID_MAGIC = STEAMID32
-    # or get right-most 32 bits
-    # STEAMID_64 & 0xFFFFFFFF
-    pass
+def update_workshop(key: str, mod: int, endpoint: str) -> None:
+    payload: dict[str, Union[int, str]] = {
+        "publishedfileid": mod,
+        "appid": APPID_DAYZ,
+        "key": key,
+        "list_type": 1,
+        "notify_client": 1,
+    }
+    try:
+        res = requests.post(endpoint, params=payload, timeout=REQUEST_TIMEOUT)
+        res.raise_for_status()
+    except Exception as e:
+        logger.critical(e)
+
+
+def subscribe(key: str, mod: int) -> None:
+    update_workshop(key, mod, SUB_ENDPOINT)
+
+
+def unsubscribe(key: str, mod: int) -> None:
+    update_workshop(key, mod, UNSUB_ENDPOINT)
+
+
+@deprecated("Use subscribe()")
+def enqueue_mod(client: str, mod: str, appid: int) -> None:
+    client_args = concat_bash_args(client)
+    subprocess.Popen([*client_args, "+workshop_download_item", str(appid), mod])
+
+
+@deprecated("Cf. https://github.com/ValveSoftware/steam-for-linux/issues/9672")
+def get_registry() -> Any | None:
+    home = os.getenv("HOME")
+    try:
+        with open(f"{home}/.steam/registry.vdf") as f:
+            registry = vdf.load(f)
+        return registry
+    except Exception as e:
+        logger.critical(e)
+        return None
+
+
+def _is_dayz_running() -> bool:
+    registry = get_registry()
+    if registry is None:
+        return False
+    apps = registry["Registry"]["HKCU"]["Software"]["Valve"]["Steam"]["apps"].items()
+    for app in apps:
+        k, v = app
+        if k in (APPID_DAYZ, APPID_DAYZ_EXP):
+            try:
+                state = v["Running"]
+                # NOTE: 0 denotes False
+                return bool(int(state))
+            except Exception as e:
+                logger.critical(e)
+                return False
+    return False
+
+
+def _get_running_app() -> int | None:
+    registry = get_registry()
+    if registry is None:
+        return None
+    try:
+        return int(
+            registry["Registry"]["HKCU"]["Software"]["Valve"]["Steam"]["RunningAppID"]
+        )
+    except Exception:
+        return None
+
+
+def get_running_app() -> int | None:
+    PROC_NAME = "steam"
+    SUBPROC_NAME = "reaper"
+    FLAG = "AppId"
+    # NOTE: may cause conflicts if multiple apps are running
+    try:
+        for proc in psutil.process_iter():
+            if proc.name() == PROC_NAME:
+                subprocs = proc.children()
+                filtered = (proc for proc in subprocs if proc.name() == SUBPROC_NAME)
+                try:
+                    proc = next(filtered)
+                except StopIteration:
+                    return None
+                args = proc.cmdline()
+                appid = (row for row in args if FLAG in row)
+                try:
+                    return int(next(appid).split("=")[1])
+                except StopIteration:
+                    return None
+    except Exception as e:
+        logger.debug(e)
+    return None
+
+
+def get_app_allows_downloads(path: Path, appid: int) -> bool:
+    try:
+        root_path = get_app_path(path, appid)
+        acf = root_path.joinpath(f"steamapps/appmanifest_{appid}.acf")
+        flag = ACF(acf).get_allows_downloads()
+    except AppNotInstalledError:
+        flag = 0
+    match flag:
+        # NOTE: adheres to global client setting
+        case 0:
+            return get_client_allows_downloads(path)
+        # NOTE: always allow
+        case 1:
+            return True
+        # NOTE: never allow
+        case 2:
+            return False
+        # NOTE: no other known values at this time, fallback (assume permits)
+        case _:
+            return True
+
+
+def get_config(path: Path) -> Path:
+    return path.joinpath("config/config.vdf")
+
+
+def get_client_allows_downloads(path: Path) -> bool:
+    config = get_config(path)
+    try:
+        with open(config) as f:
+            settings = vdf.load(f)
+            # NOTE: "1" denotes "allow"
+            allow = bool(
+                int(
+                    settings["InstallConfigStore"]["Software"]["Valve"]["Steam"][
+                        "AllowDownloadsDuringGameplay"
+                    ]
+                )
+            )
+            return allow
+    except Exception as e:
+        logger.critical(e)
+        return True
+
+
+def is_dayz_running() -> bool:
+    """Subprocesses spawned from Steam will not show up in regular process tree"""
+    procs = []
+    substring = DAYZ_BINARY
+    for proc in psutil.process_iter():
+        try:
+            procs.append(proc.cmdline())
+        except Exception as e:
+            logger.warning(e)
+            continue
+    return any(substring in item for sublist in procs for item in sublist)
+
+
+def get_app_path(folders_path: Path, appid: int) -> Path:
+    app_path = None
+
+    try:
+        with open(folders_path / LIBRARYFOLDERS_PATH) as f:
+            folders = vdf.load(f)
+    except Exception:
+        raise VDFLoadError("Failed to parse libraryfolders")
+
+    for obj in folders["libraryfolders"]:
+        if str(appid) in folders["libraryfolders"][obj]["apps"]:
+            app_path = folders["libraryfolders"][obj]["path"]
+            if Path(app_path).exists():
+                break
+
+    if app_path is None:
+        raise AppNotInstalledError(
+            f"Failed to find a libraryfolder for the appid {appid}"
+        )
+    if Path(app_path).exists() is False:
+        raise AppMovedError(
+            f"The location '{app_path}' pointed to by '{appid}' no longer exists and may have been changed on the disk."
+        )
+
+    return Path(app_path)
+
+
+def get_app_name(appid: int) -> str | None:
+    payload = {"appids": [appid]}
+    res = requests.get(APP_DETAILS, params=payload)
+    if res.status_code != 200:
+        return None
+    try:
+        return str(res.json()[str(appid)]["data"]["name"])
+    except Exception as e:
+        logger.debug(e)
+        return None

dzgui/app_init.py

@@ -0,0 +1,156 @@
+import logging
+import os
+import shutil
+from typing import TYPE_CHECKING
+
+
+from dzgui.const.constants import APP_NAME
+from dzgui.const.enum import Preferences
+from dzgui.config.query import lookup
+from dzgui.config.userprefs import UserPrefs
+from dzgui.config.xdg import get_xdg_paths, parse_filepaths
+from dzgui.init.migrate import (
+    has_new_config,
+    copy_state_files,
+    migrate_cols_file,
+)
+from dzgui.init.flock import lock_acquire
+from dzgui.init.prereqs import has_steam_client
+from dzgui.strings import boot
+
+# from dzgui.util.map_count import get_map_count
+from dzgui.util.deck import is_steam_deck, is_game_mode
+from dzgui.util.dirs import make_parents
+from dzgui.util.localize import set_locale
+from dzgui.util.redact import RedactionFilter, REDACTION_PATTERNS
+from dzgui.util.strings import init
+
+from dzgui.views.base import App
+from dzgui.views.dialogs.boot import BootWindow
+from dzgui.views.dialogs.early_alert import EarlyAlertDialog
+from dzgui.views.dialogs.wizard import SetupWizard
+
+if TYPE_CHECKING:
+    from pathlib import Path
+
+logger = logging.getLogger(APP_NAME)
+
+# TODO: profile load time
+
+
+def setup_logger(log_path: "Path") -> None:
+    # TODO: put in consts?
+    _format = (
+        "%(asctime)s␞%(levelname)s␞%(filename)s::%(funcName)s::%(lineno)s␞%(message)s"
+    )
+
+    fh = logging.FileHandler(log_path)
+    formatter = logging.Formatter(_format)
+    fh.setFormatter(formatter)
+    fh.setLevel(logging.DEBUG)
+
+    _filter = RedactionFilter(patterns=REDACTION_PATTERNS)
+    fh.addFilter(_filter)
+
+    logger.setLevel(logging.DEBUG)
+    logger.addHandler(fh)
+
+
+def copy_bare_configs(config: "Path", resolution: "Path") -> tuple[bool, bool]:
+    # NOTE: temporary workaround for #375
+    conf = "config.json"
+    state = [
+        "dzg.history",
+        "dzg.versions",
+        "dzg.res.json",
+        "dzg.filters.json",
+        "dzg.columns.json",
+        "dzg.notes.json",
+        "ips.csv",
+        ".month",
+    ]
+    config_changed = False
+    state_changed = False
+    if config.parent.exists() is False:
+        new_file = config
+        old_file = config.parent.parent / conf
+        if old_file.is_file():
+            try:
+                make_parents(new_file)
+                shutil.copy(old_file, new_file)
+                config_changed = True
+            except Exception as e:
+                logger.critical(e)
+    if resolution.parent.exists() is False:
+        state_path = resolution.parent
+        for state_file in state:
+            old_file = state_path.parent / state_file
+            if old_file.is_file():
+                try:
+                    new_file = state_path / state_file
+                    make_parents(new_file)
+                    shutil.copy(old_file, new_file)
+                    state_changed = True
+                except Exception as e:
+                    logger.critical(e)
+    return (config_changed, state_changed)
+
+
+def load_gui(version: str, is_debug: bool) -> None:
+    lock = lock_acquire()  # noqa
+
+    set_locale()
+    # NOTE: consider aborting this check if steam deck
+    xdg_paths = get_xdg_paths()
+    XDG = parse_filepaths(xdg_paths)
+
+    copy_bare_configs(XDG.config, XDG.resolution)
+
+    if XDG.resolution.parent.is_dir() is False:
+        make_parents(XDG.resolution)
+
+    if XDG.debug.is_file() is False:
+        make_parents(XDG.debug)
+
+    _is_steam_deck = is_steam_deck()
+    _is_game_mode = is_game_mode() if _is_steam_deck else False
+    if _is_game_mode:
+        # NOTE: this may no longer be necessary on newer versions of SteamOS
+        del os.environ["GTK_IM_MODULE"]
+
+    if has_new_config(XDG.config) is False:
+        migrate_cols_file(XDG.columns)
+        copy_state_files(xdg_paths["XDG_STATE_HOME"])
+        # TODO: add logging inside wizard
+        wizard = SetupWizard(_is_steam_deck, XDG)
+
+        if not wizard.is_setup_complete():
+            return
+
+    setup_logger(XDG.debug)
+    with open(XDG.debug, "w") as f:
+        f.truncate(0)
+
+    if _is_steam_deck is False:
+        # TODO: sudo escalation dialog
+        # count = get_map_count()
+        # TODO: move into module
+        if has_steam_client() is False:
+            EarlyAlertDialog(init.requires_steam)
+
+    bootwin = BootWindow(XDG, version)
+    local_coords, latest_release = bootwin.get_results()
+
+    use_miles = lookup(XDG.config, Preferences.DIST)
+    prefs = UserPrefs(
+        is_steam_deck=_is_steam_deck,
+        is_game_mode=_is_game_mode,
+        is_debug=is_debug,
+        coords=local_coords,
+        version=version,
+        paths=XDG,
+        latest_release=latest_release,
+        use_miles=use_miles,
+    )
+    print(boot.all_ok)
+    App(prefs)

dzgui/config/convert.py

@@ -3,6 +3,8 @@ import shlex
 from pathlib import Path
 from typing import Any
 
+from dzgui.const.boilerplate import config_boilerplate
+
 
 """
 Convert legacy dztuirc to config.json
@@ -89,4 +91,8 @@ def rc2json(file: Path) -> str:
     keys["ip_list"] = ips
     keys["use_miles"] = False
     keys["start_tab"] = 0
+    # NOTE: workaround for DZGUI 6 logic (see #375)
+    for key in config_boilerplate.keys():
+        if key not in keys:
+            keys[key] = config_boilerplate[key]
     return json.dumps(keys, indent=2)

dzgui/config/freedesktop.py

@@ -1,18 +1,43 @@
+import stat
 import textwrap
+
 from pathlib import Path
 
+from dzgui.const.constants import APP_NAME
+from dzgui.util.dirs import copy_dzgui_to_xdg_data, find_icon_resource, make_parents
+
+
+def get_share_path(exe_path: Path) -> Path:
+    return exe_path.parent.parent
+
+
+def write_desktop_file(exe_path: Path) -> Path:
+    icon = find_icon_resource()
 
-def write_desktop_file(share_path: Path) -> None:
     template = f"""\
     [Desktop Entry]
     Version=1.0
     Type=Application
     Terminal=false
-    Exec={share_path}/launch.sh
+    Exec={exe_path}
     Name=DZGUI
     Comment=dzgui
-    Icon={share_path}/dzgui
+    Icon={icon}
     Categories=Game"""
 
-    file = share_path / "dzgui.desktop"
-    file.write_text(textwrap.dedent(template))
+    copy_dzgui_to_xdg_data(exe_path)
+
+    share_path = get_share_path(exe_path)
+    desktop_file = share_path.joinpath("applications/dzgui.desktop")
+    make_parents(desktop_file)
+    desktop_file.write_text(textwrap.dedent(template))
+    desktop_file.chmod(desktop_file.stat().st_mode | stat.S_IEXEC)
+    return desktop_file
+
+
+def write_desktop_shortcut(desktop_file: Path) -> None:
+    # NOTE: necessarily depends on the above (UI blocks creation without XDG entry first)
+    link = Path.home().joinpath(f"Desktop/{APP_NAME}.desktop")
+    if link.exists():
+        link.unlink()
+    link.symlink_to(desktop_file)

dzgui/config/xdg.py

@@ -18,6 +18,7 @@ class Xdg:
     debug: Path
     ips: Path
     filters: Path
+    shortcut: Path
 
 
 def is_writeable(path_str: str) -> bool:
@@ -29,9 +30,9 @@ def is_writeable(path_str: str) -> bool:
     if not path.exists():
         try:
             path.mkdir(parents=True)
+            path.unlink()
         except OSError:
             return False
-        path.unlink()
         return True
 
     try:
@@ -55,17 +56,19 @@ def get_xdg_paths() -> dict:
 
     resolved_paths = {}
     for path in xdg_paths:
-        rp = os.environ.get(path)
-        if rp is not None and is_writeable(rp):
-            resolved_paths[path] = Path(rp)
+        real_path = os.environ.get(path)
+        if real_path is not None and is_writeable(real_path):
+            new_path = Path(real_path)
         else:
-            resolved_paths[path] = xdg_paths[path] / APP_NAME_LOWER
+            new_path = xdg_paths[path]
+        resolved_paths[path] = new_path / APP_NAME_LOWER
     return resolved_paths
 
 
 def parse_filepaths(xdg: dict) -> Xdg:
     config = xdg["XDG_CONFIG_HOME"]
     state = xdg["XDG_STATE_HOME"]
+    share = xdg["XDG_DATA_HOME"]
 
     config = config / "config.json"
 
@@ -80,6 +83,8 @@ def parse_filepaths(xdg: dict) -> Xdg:
     ips = state / "ips.csv"
     filters = state / "dzg.filters.json"
 
+    shortcut = share / APP_NAME_LOWER
+
     return Xdg(
         config,
         columns,
@@ -90,5 +95,6 @@ def parse_filepaths(xdg: dict) -> Xdg:
         system,
         debug,
         ips,
-        filters
+        filters,
+        shortcut,
     )

dzgui/const/constants.py

@@ -4,6 +4,8 @@ UDP_PORT = 27016
 VM_FILE = "/proc/sys/vm/max_map_count"
 MIN_COUNT = 1048576
 
+API_RATE_LIMIT = 1
+CLIENT_RATE_LIMIT = 3
 REQUEST_TIMEOUT = 10
 
 APPNAME_DAYZ = "DayZ"
@@ -32,9 +34,12 @@ HEX_GREEN = "#32CD32"
 HEX_RED = "#FF0000"
 HEX_ORANGE = "#FFAC1C"
 
+# FIXME: normalize icon names
 CARET_DOWN = "go-down-symbolic"
 CARET_UP = "go-up-symbolic"
 CLIPBOARD = "edit-copy-symbolic"
+FOLDER = "folder-symbolic"
+EDIT_DELETE = "edit-delete-symbolic"
 ERROR = "dialog-error-symbolic"
 HELP_BUBBLE = "help-about-symbolic"
 INPUT_KEYBOARD = "input-keyboard-symbolic"
@@ -67,7 +72,9 @@ LEGACY_IPS_PATH = ".local/share/dzgui/helpers/ips.csv"
 DEBUG_LOG = f"{APP_NAME}_DEBUG.LOG"
 SYSTEM_LOG = f"{APP_NAME}_SYSTEM.LOG"
 CHANGELOG_PATH = "data/CHANGELOG.md"
-HERO_PATH = "data/images/hero.png"
+IMAGES_PATH = "data/images"
+
+HERO_PATH = "data/images/_hero.png"
 CSS_PATH = "data/app.css"
 VDF_PATH = "steamapps/libraryfolders.vdf"
 DEFAULT_STEAM_PATH = ".local/share/Steam"
@@ -80,3 +87,5 @@ LOG_FILTERS = ("CRITICAL", "WARNING", "INFO", "DEBUG")
 TMP_PATH = "/tmp"
 TMP_TARBALL = "/tmp/dzgui.tar.gz"
 TMP_EXE = "/tmp/dzgui/dzgui"
+
+DAYZ_COMMUNITY_ROOT = "Missions"

dzgui/const/endpoints.py

@@ -1,6 +1,12 @@
 # internal
-STEAM_PUBLISHED_FILES = "https://api.steampowered.com/ISteamRemoteStorage/GetPublishedFileDetails/v1/?format=json"
-STEAM_SERVERS = "https://api.steampowered.com/IGameServersService/GetServerList/v1/?"
+STEAM_PUBLISHED_FILES = (
+    "https://api.steampowered.com/ISteamRemoteStorage/GetPublishedFileDetails/v1"
+)
+STEAM_SERVERS = "https://api.steampowered.com/IGameServersService/GetServerList/v1"
+SUB_ENDPOINT = "https://api.steampowered.com/IPublishedFileService/Subscribe/v1"
+UNSUB_ENDPOINT = "https://api.steampowered.com/IPublishedFileService/Unsubscribe/v1"
+APP_DETAILS = "https://store.steampowered.com/api/appdetails?"
+
 BM_SERVERS = "https://api.battlemetrics.com/servers?"
 GITHUB = "https://github.com/aclist"
 GITHUB_RELEASES = "https://api.github.com/repos/aclist/dztui/releases/latest"

dzgui/const/enum.py

@@ -103,6 +103,7 @@ class Preferences(EnumWithAttrs):
 
 
 class NotebookPage(EnumWithAttrs):
+    OFFLINE = {"crumbs": strings.crumbs.offline, "statusbar": True}
     CHANGELOG = {"crumbs": strings.crumbs.changelog, "statusbar": True}
     DEVELOPERS = {"crumbs": strings.crumbs.developers, "statusbar": False}
     HELP = {"crumbs": strings.crumbs._help, "statusbar": True}
@@ -167,7 +168,7 @@ class ContextMenu(EnumWithAttrs):
     COPY_LOG_CLIPBOARD = {"label": strings.copy_log}
     COPY_SERVER_IP = {"label": strings.copy_ip}
     COPY_SERVER_NAME = {"label": strings.copy_name}
-    DELETE_MOD = {"label": strings.delete_mod}
+    UNSUB_MOD = {"label": strings.unsub_mod}
     OPEN_WORKSHOP = {"label": strings.open_workshop}
     REFRESH_PLAYERS = {"label": strings.refresh_players}
     REMOVE_HISTORY = {"label": strings.remove_history}
@@ -183,7 +184,8 @@ class ContextMenuGroup(Enum):
     """
 
     SERVER_MOD = (ContextMenu.OPEN_WORKSHOP,)
-    MOD = (ContextMenu.OPEN_WORKSHOP, ContextMenu.DELETE_MOD)
+    MOD = (ContextMenu.OPEN_WORKSHOP, ContextMenu.UNSUB_MOD)
+    MOD_OFFLINE = (None,)
     LOG = (ContextMenu.COPY_LOG_CLIPBOARD,)
     SERVER_BROWSER = (
         ContextMenu.CONNECT,
@@ -248,9 +250,9 @@ class ModButton(EnumWithAttrs):
         "label": strings.mod_panel.unhighlight_stale,
         "tooltip": strings.mod_panel.unhighlight_stale_tooltip,
     }
-    DELETE_SELECTED = {
-        "label": strings.mod_panel.delete_selected,
-        "tooltip": strings.mod_panel.delete_selected_tooltip,
+    UNSUB_SELECTED = {
+        "label": strings.mod_panel.unsub_selected,
+        "tooltip": strings.mod_panel.unsub_selected_tooltip,
     }
     SELECT_STALE = {
         "label": strings.mod_panel.select_stale,

dzgui/controllers/emitter.py

@@ -8,6 +8,8 @@ from gi.repository import Gdk, GObject  # noqa E402
 
 if TYPE_CHECKING:
     from dzgui.const.enum import NotebookPage, ServerTab
+    from dzgui.model.model_factory import FastInsertListStore
+    from dzgui.views.pages.offline import FolderHBox
 
 
 # TODO: if servers fail to load, may leave dangling widgets waiting for a signal
@@ -79,8 +81,8 @@ class Emitter(GObject.GObject):
     def distcalc_started(self) -> None:
         pass
 
-    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(bool,))
-    def mod_page_toggled(self, state: bool) -> None:
+    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(bool, int))
+    def mod_page_toggled(self, state: bool, mods: int) -> None:
         pass
 
     @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(bool,))
@@ -154,3 +156,23 @@ class Emitter(GObject.GObject):
     @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=())
     def lan_page_initialized(self) -> None:
         pass
+
+    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(object, str))
+    def custom_mods_loaded(self, store: "FastInsertListStore", folder: str) -> None:
+        pass
+
+    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(object,))
+    def custom_mods_unloaded(self, widget: "FolderHBox") -> None:
+        pass
+
+    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=(str, bool))
+    def custom_mission_loaded(self, folder: str, is_valid: bool) -> None:
+        pass
+
+    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=())
+    def invalid_custom_mods(self) -> None:
+        pass
+
+    @GObject.Signal(flags=GObject.SignalFlags.RUN_LAST, arg_types=())
+    def all_mods_synched(self) -> None:
+        pass

dzgui/controllers/mc.py

@@ -20,11 +20,10 @@ from dzgui.controllers.emitter import Emitter
 from dzgui.managers.config import ConfigManager
 from dzgui.managers.connection import ConnectionManager
 from dzgui.managers.contextmenu import ContextMenuManager
-from dzgui.managers.mods import ModManager
 from dzgui.managers.notes import NoteManager
 from dzgui.model.servers import ServerModelManager
 from dzgui.util.diag import write_diagnostic
-from dzgui.util.format import format_player_count
+from dzgui.util.format import format_exception, format_player_count
 from dzgui.util.open_links import open_user_workshop, open_workshop_page
 from dzgui.views.dialogs.filepicker import FilePicker
 from dzgui.views.dialogs.generic import ExceptionDialog
@@ -47,12 +46,13 @@ if TYPE_CHECKING:
     from dzgui.views.components.filter_panel import FilterPanel
     from dzgui.views.components.right_panel import RightPanel
     from dzgui.views.components.statusbar import Statusbar
+    from dzgui.views.pages.offline import OfflineLoader
     from dzgui.views.pages.options import Options
     from dzgui.views.pages.preconnect import PreConnectionAssistant
     from dzgui.views.pages.servers import ServerNotebook
     from dzgui.views.trees.tree_log import LogTreeView
     from dzgui.views.trees.tree_menu import MenuTreeView
-    from dzgui.views.trees.tree_mods import ModTreeView
+    from dzgui.views.trees.tree_mods import ModTreeView, OfflineModTreeView
     from dzgui.views.trees.tree_servers import ServerTreeView
 
 
@@ -72,6 +72,7 @@ class AppNavigation:
     filters: "FilterPanel"
     preconnect: "PreConnectionAssistant"
     options: "Options"
+    offline_loader: "OfflineLoader"
 
 
 class Controller(GObject.GObject):
@@ -202,7 +203,9 @@ class Controller(GObject.GObject):
                 try:
                     # TODO: where to put config file check
                     self.mediator.grid.notebook.settings.populate_settings()
-                except Exception:
+                except Exception as e:
+                    msg = format_exception(e)
+                    logger.critical(msg)
                     return
             case ButtonType.MODS:
                 self.load_mods()
@@ -218,19 +221,29 @@ class Controller(GObject.GObject):
         open_user_workshop(uid, client)
 
     def load_mods(self) -> None:
-        self.mod_man = ModManager(self)
+        self.mediator.modtreeview.load_mods()
 
     def uncolorize_mods(self) -> None:
-        self.mod_man.uncolorize_mods()
+        mod_man = self.mediator.modtreeview.get_mod_man()
+        mod_man.uncolorize_mods()
 
     def highlight_stale(self) -> None:
-        self.mod_man.highlight_stale()
+        mod_man = self.mediator.modtreeview.get_mod_man()
+        mod_man.highlight_stale()
 
     def toggle_mod_selection(self, state: bool) -> None:
-        self.mod_man.toggle_mod_selection(state)
+        mod_man = self.mediator.modtreeview.get_mod_man()
+        mod_man.toggle_mod_selection(state)
 
-    def delete_mods(self) -> None:
-        self.mod_man.delete_mods()
+    def unsub_mods(
+        self, treeview: Union["ModTreeView", "OfflineModTreeView", None] = None
+    ) -> None:
+        if treeview is None:
+            view = self.mediator.modtreeview
+        else:
+            view = treeview
+        mod_man = view.get_mod_man()
+        mod_man.unsub_mods()
 
     def get_mod_store(self) -> Gtk.TreeModel | None:
         return self.mediator.modtreeview.get_model()
@@ -257,7 +270,8 @@ class Controller(GObject.GObject):
             dialog.run()
 
     def select_colorized(self) -> None:
-        self.mod_man.select_colorized()
+        mod_man = self.mediator.modtreeview.get_mod_man()
+        mod_man.select_colorized()
 
     def get_all_tree_filters(self) -> dict[str, dict[str, bool]]:
         servers = self.get_servers()
@@ -511,11 +525,11 @@ class Controller(GObject.GObject):
         ind = self.config_man.get_start_tab()
         self.get_servers().notebook.set_current_page(ind)
 
-    def update_and_load_to_menu(self, raise_window: bool) -> None:
-        self.connection_man.update_and_connect(raise_window, menu_only=True)
+    def update_and_load_to_menu(self) -> None:
+        self.connection_man.update_and_connect(menu_only=True)
 
-    def update_and_connect(self, raise_window: bool) -> None:
-        self.connection_man.update_and_connect(raise_window)
+    def update_and_connect(self) -> None:
+        self.connection_man.update_and_connect()
 
     def update_status(self) -> None:
         self.mediator.preconnect.mark_finished()
@@ -533,3 +547,9 @@ class Controller(GObject.GObject):
             self.clear_cancel_event()
             return True
         return False
+
+    def open_offline(self) -> None:
+        self.open_page(NotebookPage.OFFLINE)
+        mod_man = self.mediator.modtreeview.get_mod_man()
+        store = mod_man.store
+        self.mediator.offline_loader.populate(store)

dzgui/data/CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
-## Added
+## [7.0.0] Unreleased
+### Added
 - Setup wizard
 - Changelog text wrapping and formatting
 - Changelog ships with source
@@ -40,8 +41,11 @@
 - Preboot progress dialog
 - Choose to jump into splash screen instead of server
 - Collapsible connection panel
+- Play offline (load mods directly)
+- Generate Steam shortcuts and cover art
+- Warn user if background downloads are disabled
 
-## Changed
+### Changed
 - Conform to PEP 440 versioning for beta versions
 - Reduce padding on keys button
 - Boldface breadcrumbs
@@ -56,59 +60,60 @@
 - Disable overlay scrollbars on server tables
 - Reduce size of geolocation DB on disk (~100MB)
 - Enable LAN page Empty/Full filters on first run of app
+- Propagate subscribed mods to Steam client
 
-## Dropped
+### Dropped
 - Debug mode
 - Branch switching
 - Manual mod install mode (describe rationale)
 - Force update mods
 
-## Fixed
+### Fixed
 - Longstanding issue with left clicks not registering as tree selection changes after spamming keyboard input
 - Center server title text on server dialogs
 - Rare segfaults when changing maps (threading)
 - Moved dialogs out of threads
 
-## Unreleased
+### Unreleased
 - Load offline mods
 - Local documentation
 - Raw debug command in context menu
 
-## Developer-facing
+### Developer-facing
 - Add pyproject.toml file
 - Show deprecation warnings
 - Options -> Dev page
 
 ## [6.0.5] 2026-05-17
-## Changed
+### Changed
 - Update symlink hash logic to align with DZGUI 7 beta
 - Update A2S helper to latest commit
 
 ## [6.0.4] 2026-04-13
-## Fixed
+### Fixed
 - Update A2S module checksums to support servers with missing description field
 
 ## [6.0.3] 2026-04-12
-## Fixed
+### Fixed
 - Use GLibUnix namespace where available when setting up SIGINT callback
 
 ## [6.0.2] 2026-01-26
-## Fixed
+### Fixed
 - Explicitly use Python 3.13 when calling subprocesses
 - Raise error correctly from module
 - Do not spawn dialogs from inside of thread when fetching prereqs
-## Changed
+### Changed
 - Optimize time complexity of startup checks
 - Optimize coordinate calculation by using local records first
 - Rename some internal functions
 - Wrap entire startup process in dialog
 
 ## [6.0.1] 2026-01-16
-## Fixed
+### Fixed
 - Explicitly use Python 3.13 when calling subprocesses
 
 ## [6.0.0] 2026-01-14
-## Added
+### Added
 - Support DayZ Experimental
 - Ping display on server tables
 - Save descriptive text notes on a per-server basis
@@ -134,7 +139,7 @@
 - Commandline usage help text (GaryBlackbourne)
 - More descriptive help dialogs when initial dependencies are missing
 
-## Fixed
+### Fixed
 - Script failing to start when remote endpoints are unavailable (GaryBlackbourne)
 - Key stickiness when quickly navigating through entries in tables
 - Servers returning malformed A2S_INFO blocking server browser from loading
@@ -173,7 +178,7 @@
 - Path discovery during first-time setup when parsing filepaths with whitespaces
 - First-time setup dialog continuously triggering when DayZ install path had whitespaces in it
 
-## Changed
+### Changed
 - Require Python 3.13
 - Reduced global API cooldown from 60s to 30s
 - Clarify dialog messages when DayZ path could not be found
@@ -185,50 +190,50 @@
 - Rewrote distance calculation module (GaryBlackbourne)
 - Changed preferred client setting from radio toggle to combobox
 
-## Dropped
+### Dropped
 - Ping readout in statusbar
 - Extraneous information from right statusbar
 
 ## [5.8.3] 2026-01-04
-## Fixed
+### Fixed
 - Normalize checksum numbers and dates
 
 ## [5.8.2] 2026-01-04
-## Fixed
+### Fixed
 - Fix regression in symlink routine introduced by previous hotfix
 
 ## [5.8.1] 2025-12-27
-## Fixed
+### Fixed
 - Path discovery during first-time setup when parsing filepaths with whitespaces
 - First-time setup dialog continuously triggering when DayZ install path had whitespaces in it
 
 ## [5.8.0] 2025-07-06
-## Added
+### Added
 - Filter servers by official/unofficial status
 - Automatically fetch geolocation records
-## Changed
+### Changed
 - Updated internal versioning of helper files
-## Fixed
+### Fixed
 - Corrected erroneous 2024 date in prior changelog entries
 
 ## [5.7.0] 2025-04-17
-## Added
+### Added
 - Save application dimensions when quitting and restore on subsequent boot
-## Fixed
+### Fixed
 - Issues with the window exceeding the bounds of the screen when displaying some table contexts
-## Changed
+### Changed
 - More direct server ping query method that should return marginally more accurate times
 
 ## [5.6.7] 2025-04-04
-## Dropped
+### Dropped
 - Removed extraneous pre-boot API checks that could cause error messages to be printed if the user had not set up an API key yet
 
 ## [5.6.6] 2025-03-16
-## Changed
+### Changed
 - Update IP database records for 2025-03
 
 ## [5.6.5] 2025-03-04
-## Fixed
+### Fixed
 - Livonia server results being dropped from batch queries
 
 ## [5.6.4] 2025-02-10

dzgui/init/dayz.py

@@ -1,14 +1,12 @@
 import logging
-import sys
 
 from pathlib import Path
 
+from dzgui.api.steam import get_app_path
 from dzgui.config.query import lookup
-from dzgui.const.constants import APPID_DAYZ, APP_NAME, LIBRARYFOLDERS_PATH
+from dzgui.const.constants import APPID_DAYZ, APP_NAME
 from dzgui.const.enum import Preferences
-from dzgui.views.dialogs.early_alert import EarlyAlertDialog
 
-import dzgui.api.pefile as PeFile
 
 logger = logging.getLogger(APP_NAME)
 
@@ -16,8 +14,7 @@ logger = logging.getLogger(APP_NAME)
 def is_dayz_installed(config: Path) -> None:
     try:
         path = lookup(config, Preferences.DEFAULT)
-        PeFile.get_app_path(Path(path) / LIBRARYFOLDERS_PATH, APPID_DAYZ)
+        get_app_path(Path(path), APPID_DAYZ)
     except Exception as e:
         logger.critical(e)
-        EarlyAlertDialog(str(e))
-        sys.exit(1)
+        raise e

dzgui/init/libgi.py

@@ -1,11 +1,12 @@
 import platform
 import sys
 
-from pathlib import Path
+from ctypes.util import find_library
 from warnings import deprecated
 
 LIB = "libgirepository-2.0"
 
+
 @deprecated("currently unused")
 def is_debian() -> bool:
     """
@@ -39,12 +40,10 @@ def is_debian() -> bool:
 
 
 def has_libgi() -> bool:
-    parent_dir = Path("/usr/lib64")
-    exists = any(LIB in subdir.name for subdir in parent_dir.iterdir())
-    return exists
+    return bool(find_library("girepository-2.0"))
 
 
-def test_missing_lib() -> bool:
+def test_libgi_missing() -> None:
     msg = f"System is missing the required library '{LIB}'. Install it via your system package manager."
     if has_libgi() is False:
         print(msg)

dzgui/init/proc.py

@@ -1,11 +1,10 @@
 import psutil
 import subprocess
 import shutil
-
-from warnings import deprecated
+import logging
 
 from dzgui.const.constants import (
-    DAYZ_BINARY,
+    APP_NAME,
     STEAM_CMD,
     FLATPAK_APPID,
     FLATPAK_CMD,
@@ -13,18 +12,7 @@ from dzgui.const.constants import (
     FLATPAK_SANDBOX,
 )
 
-
-# TODO: move to util.proc
-def is_dayz_running() -> bool:
-    """Subprocesses spawned from Steam will not show up in regular process tree"""
-    procs = []
-    substring = DAYZ_BINARY
-    for proc in psutil.process_iter():
-        try:
-            procs.append(proc.cmdline())
-        except Exception:
-            continue
-    return any(substring in item for sublist in procs for item in sublist)
+logger = logging.getLogger(APP_NAME)
 
 
 def is_steam_running(cmd: str) -> bool:
@@ -61,25 +49,3 @@ def has_cmd(cmd: str) -> bool:
     if shutil.which(cmd) is not None:
         return True
     return False
-
-
-@deprecated("dropped in favor of Gtk native methods")
-def foreground(cmd: str, pid: int) -> None:
-    if cmd == "wmctrl":
-        proc = subprocess.run(["wmctrl", "-ilp"], capture_output=True, text=True)
-        lines = proc.stdout.splitlines()
-        for line in lines:
-            els = line.split(" ")
-            if str(pid) in els:
-                wid = els[0]
-                break
-        subprocess.run(["wmctrl", "-ia", wid])
-    elif cmd == "xdotool":
-        args = [cmd, "search", "--pid", str(pid)]
-        proc = subprocess.run([*args], capture_output=True, text=True)
-        lines = proc.stdout.splitlines()
-        ## NOTE: some forked subprocesses may fail, so skip over them
-        for line in lines:
-            subprocess.run(
-                ["xdotool", "windowactivate", line], stderr=subprocess.DEVNULL
-            )

dzgui/main.py

@@ -1,41 +1,11 @@
 import argparse
-import logging
-import os
 import sys
 import warnings
 
-from typing import TYPE_CHECKING
-
 from dzgui.const.constants import APP_NAME
-from dzgui.const.enum import Preferences
-from dzgui.config.query import lookup
-from dzgui.config.userprefs import UserPrefs
-from dzgui.config.xdg import get_xdg_paths, parse_filepaths
-from dzgui.init.dayz import is_dayz_installed
-from dzgui.init.flock import lock_acquire
-from dzgui.init.migrate import (
-    has_new_config,
-    copy_state_files,
-    migrate_cols_file,
-)
+from dzgui.init.libgi import test_libgi_missing
 from dzgui.init.prefix import get_version
-from dzgui.init.prereqs import has_steam_client
-from dzgui.strings import boot
-
-# from dzgui.util.map_count import get_map_count
-from dzgui.util.deck import is_steam_deck, is_game_mode
-from dzgui.util.localize import set_locale
-from dzgui.util.strings import init, flags
-
-from dzgui.views.base import App
-from dzgui.views.dialogs.boot import BootWindow
-from dzgui.views.dialogs.early_alert import EarlyAlertDialog
-from dzgui.views.dialogs.wizard import SetupWizard
-
-if TYPE_CHECKING:
-    from pathlib import Path
-
-logger = logging.getLogger(APP_NAME)
+from dzgui.util.strings import flags
 
 parser = argparse.ArgumentParser(description=flags.description)
 parser.add_argument("-v", "--version", action="store_true", help=flags.version)
@@ -44,11 +14,6 @@ parser.add_argument("-d", "--debug", action="store_true", help=flags.debug)
 args = parser.parse_args()
 
 
-# TODO: profile load time
-def make_parents(path: "Path") -> None:
-    path.parent.mkdir(parents=True, exist_ok=True)
-
-
 def uninstall() -> None:
     # TODO: uninstall data files (-u)
     # -u removes state, log, freedesktop
@@ -58,21 +23,7 @@ def uninstall() -> None:
     pass
 
 
-def setup_logger(log_path: "Path") -> None:
-    _format = (
-        "%(asctime)s␞%(levelname)s␞%(filename)s::%(funcName)s::%(lineno)s␞%(message)s"
-    )
-    fh = logging.FileHandler(log_path)
-    formatter = logging.Formatter(_format)
-    fh.setFormatter(formatter)
-    fh.setLevel(logging.DEBUG)
-    logger.setLevel(logging.DEBUG)
-    logger.addHandler(fh)
-
-
 def main() -> None:
-    lock = lock_acquire()  # noqa
-
     if args.version is True:
         print(get_version())
         sys.exit(0)
@@ -83,69 +34,11 @@ def main() -> None:
         warnings.filterwarnings("default", category=DeprecationWarning)
 
     version = get_version()
-    set_locale()
 
     print(f"{APP_NAME} {version}")
+    test_libgi_missing()
 
-    # NOTE: consider aborting this check if steam deck
-    xdg_paths = get_xdg_paths()
-    XDG = parse_filepaths(xdg_paths)
+    # NOTE: only import ligbirepository modules after the above check
+    from dzgui.app_init import load_gui
 
-    if XDG.resolution.parent.is_dir() is False:
-        make_parents(XDG.resolution)
-
-    if XDG.debug.is_file() is False:
-        make_parents(XDG.debug)
-
-    _is_steam_deck = is_steam_deck()
-    _is_game_mode = is_game_mode() if _is_steam_deck else False
-    if _is_game_mode:
-        # NOTE: this may no longer be necessary on newer versions of SteamOS
-        del os.environ["GTK_IM_MODULE"]
-
-    if has_new_config(XDG.config) is False:
-        migrate_cols_file(XDG.columns)
-        copy_state_files(xdg_paths["XDG_STATE_HOME"])
-        # TODO: add logging inside wizard
-        SetupWizard(_is_steam_deck, XDG.config)
-
-    # NOTE: implies that setup wizard failed or was closed
-    if has_new_config(XDG.config) is False:
-        return
-
-    setup_logger(XDG.debug)
-    with open(XDG.debug, "w") as f:
-        f.truncate(0)
-
-    if _is_steam_deck is False:
-        # TODO: sudo escalation dialog
-        # count = get_map_count()
-        # TODO: move into module
-        if has_steam_client() is False:
-            EarlyAlertDialog(init.requires_steam)
-
-    is_dayz_installed(XDG.config)
-
-    bootwin = BootWindow(XDG, version)
-    local_coords, latest_release = bootwin.get_results()
-
-    # rebuild_symlinks(XDG.config)
-    # remove_stale_signatures(XDG.config, XDG.version)
-
-    ## TODO: handle IP DB failure and use coords fallback
-    # local_coords = get_local_coords(XDG.ips)
-    # latest_release = check_updates(version)
-
-    use_miles = lookup(XDG.config, Preferences.DIST)
-    prefs = UserPrefs(
-        is_steam_deck=_is_steam_deck,
-        is_game_mode=_is_game_mode,
-        is_debug=args.debug,
-        coords=local_coords,
-        version=version,
-        paths=XDG,
-        latest_release=latest_release,
-        use_miles=use_miles,
-    )
-    print(boot.all_ok)
-    App(prefs)
+    load_gui(version, args.debug)

dzgui/managers/config.py

@@ -55,8 +55,11 @@ class ConfigManager:
         self.update_config(Preferences.IP_LIST, ips)
 
     def update_history_file(self, fqip: str) -> None:
-        with open(self.prefs.paths.history, "r") as f:
-            ips = [line.rstrip() for line in f.readlines()]
+        try:
+            with open(self.prefs.paths.history, "r") as f:
+                ips = [line.rstrip() for line in f.readlines()]
+        except FileNotFoundError:
+            ips = []
 
         seen = set()
         ips.append(fqip)

dzgui/managers/connection.py

@@ -9,13 +9,17 @@ from typing import TYPE_CHECKING
 
 import dzgui.api.pefile as PeFile
 import dzgui.api.servers as Servers
+from dzgui.api.shortcuts import Shortcuts
 
 from dzgui.api.steam import (
     connect,
-    enqueue_mod,
-    get_remote_signatures,
+    get_app_allows_downloads,
+    get_app_name,
     get_needs_update,
+    get_remote_signatures,
+    get_running_app,
     load_to_menu,
+    subscribe,
 )
 
 from dzgui.api.mods import (
@@ -25,16 +29,22 @@ from dzgui.api.mods import (
     update_signatures,
 )
 from dzgui.const.constants import (
+    API_RATE_LIMIT,
     APP_NAME,
     APPID_DAYZ,
     APPID_DAYZ_EXP,
     APPNAME_DAYZ,
     APPNAME_DAYZ_EXP_HUMAN,
 )
+from dzgui.api.steam import is_dayz_running
 from dzgui.const.enum import NotebookPage, Preferences
-from dzgui.init.proc import is_dayz_running, is_steam_running
+from dzgui.init.proc import is_steam_running
 from dzgui.managers.threading import call_on_thread, StoredFunc, ThreadingManager
-from dzgui.strings.dialogs import waiting_for_launch, waiting_for_mods
+from dzgui.strings.dialogs import (
+    waiting_for_launch,
+    waiting_for_mods,
+    waiting_for_directories,
+)
 from dzgui.strings.server_mods import checkmark, resync
 from dzgui.util.format import format_mib
 from dzgui.util.strings import dialog, server_timeout
@@ -76,6 +86,7 @@ class Prerequisites:
     mods: list[list[str]]
     game_mode: bool
     is_last_server: bool
+    allows_downloads: tuple[bool, str]
 
 
 class ConnectionManager:
@@ -143,21 +154,14 @@ class ConnectionManager:
         remote_mods: list[list[str]] = []
         if res.is_modded():
             try:
-                remote_mods = self._query_modlist(record)
+                remote_mods, missing_mods = self._query_modlist(record)
+                self.missing_mods = missing_mods
                 self.remote_mod_ids = [mod[1] for mod in remote_mods]
             except Exception as e:
                 logger.warning(e)
                 self.thread_man.set_cleanup_func(failure_func, destroy_first=True)
                 return
 
-            hashes = get_remote_signatures(self.remote_mod_ids)
-            version_file = prefs.paths.version
-            self.missing_mods = get_needs_update(version_file, hashes)
-
-            for mod in remote_mods:
-                if any(mod[1] in tuple for tuple in self.missing_mods):
-                    mod[2] = resync
-
             if local_version is not None:
                 pefile_path = PeFile.get_pefile_path(steam_path, info.game_id)
                 total, used, free = shutil.disk_usage(pefile_path)
@@ -168,6 +172,21 @@ class ConnectionManager:
 
         dayz_running = is_dayz_running()
 
+        running_app = get_running_app()
+        if running_app is not None:
+            allows_dl = get_app_allows_downloads(steam_path, running_app)
+            running_app_name = get_app_name(running_app)
+            # NOTE: for out-of-range appid, assume NSG.
+            # dzgui.api.steam.get_app_name() will return None
+            if running_app_name is None:
+                s = Shortcuts(steam_path)
+                # NOTE: returns "Unknown" if unparseable
+                running_app_name = s.find_appname_by_unsigned_id(running_app)
+            allows_downloads = (allows_dl, running_app_name)
+        else:
+            allows_downloads = (True, "")
+
+
         client_name = self.controller.get_steam_client_name()
         client = self.controller.query_config(Preferences.CLIENT)
         running = is_steam_running(client)
@@ -193,6 +212,7 @@ class ConnectionManager:
             mods=remote_mods,
             game_mode=game_mode,
             is_last_server=is_last,
+            allows_downloads=allows_downloads,
         )
 
         func = StoredFunc(self.controller.open_connection_assistant, prereqs)
@@ -221,10 +241,13 @@ class ConnectionManager:
             StoredFunc(self._present_details_dialog, details), destroy_first=True
         )
 
-    def _query_modlist(self, record: Servers.Record) -> list[list[str]]:
+    def _query_modlist(
+        self, record: Servers.Record
+    ) -> tuple[list[list[str]], list[tuple[str, str, int, int]]]:
         mods = Servers.get_rules(record)
         steam_path = self.controller.query_config(Preferences.DEFAULT)
-        local = get_local_mod_ids(steam_path)
+        local = get_local_mod_ids(Path(steam_path))
+
         alpha_mods: list[list[str]] = [
             [
                 mod.name,
@@ -234,12 +257,23 @@ class ConnectionManager:
             for mod in mods
         ]
         alpha_mods.sort(key=lambda x: x[0])
-        return alpha_mods
+
+        prefs = self.controller.get_prefs()
+        version_file = prefs.paths.version
+
+        remote_mod_ids = [mod[1] for mod in alpha_mods]
+        hashes = get_remote_signatures(remote_mod_ids)
+        missing_mods = get_needs_update(version_file, hashes)
+        for mod in alpha_mods:
+            if any(mod[1] in tuple for tuple in missing_mods):
+                mod[2] = resync
+
+        return alpha_mods, missing_mods
 
     @call_on_thread(dialog.querying)
     def query_modlist_and_present(self, record: Servers.Record) -> None:
         try:
-            mods = self._query_modlist(record)
+            mods, missing_mods = self._query_modlist(record)
         except Exception:
             self.thread_man.set_cleanup_func(
                 StoredFunc(self._server_timeout), destroy_first=True
@@ -275,9 +309,9 @@ class ConnectionManager:
             self.thread_man.set_cleanup_func(func)
             return
 
-        self.thread_man.show_cancel(False)
         self.thread_man.update_dialog(waiting_for_launch)
         while True:
+            # FIXME: cancel should not be visible here per setting above
             if self.controller.is_cancel_pending():
                 # TODO: some facility to also close spawned steam process
                 return
@@ -292,21 +326,18 @@ class ConnectionManager:
         self.controller.add_to_history(self.history, self.record)
         self.controller.open_page(NotebookPage.SERVERS)
 
-    def _update_mods(self, raise_window: bool, menu_only: bool = False) -> None:
-        # NOTE: fast enqueue all mods in auto mode
+    def _update_mods(self, menu_only: bool = False) -> None:
         prefs = self.controller.get_prefs()
+        config_man = self.controller.get_config_man()
+        key = config_man.lookup(Preferences.STEAM)
 
         for title, mod, stamp, size in self.missing_mods:
             if self.controller.is_cancel_pending():
                 return
-            enqueue_mod(self.client, mod, self.appid)
-            # NOTE: prevents rate limiting
-            time.sleep(3)
-
-        if raise_window is True:
-            logger.info("Bringing window to foreground")
-            GLib.idle_add(self.controller.present_window)
+            subscribe(key, int(mod))
+            time.sleep(API_RATE_LIMIT)
 
+        self.thread_man.update_dialog(waiting_for_directories)
         for title, mod, stamp, size in self.missing_mods:
             mod_path = self.workshop / mod
 
@@ -324,13 +355,17 @@ class ConnectionManager:
                 time.sleep(1)
 
         update_signatures(self.missing_mods, prefs.paths.version)
-        # TODO: just push steam path directly
         rebuild_symlinks(prefs.paths.config)
+
+        # NOTE: update table status in main loop
+        self.thread_man.update_emitter("all_mods_synched")
+
+        # TODO: just push steam path directly
         self._connect_steam(menu_only)
 
     @call_on_thread(waiting_for_mods, show_cancel=True)
-    def update_and_connect(self, raise_window: bool, menu_only: bool = False) -> None:
+    def update_and_connect(self, menu_only: bool = False) -> None:
         if len(self.missing_mods) > 0:
-            self._update_mods(raise_window, menu_only)
+            self._update_mods(menu_only)
         else:
             self._connect_steam(menu_only)

dzgui/managers/contextmenu.py

@@ -8,7 +8,7 @@ from dzgui.util.clip import copy_clipboard
 from dzgui.util.open_links import open_workshop_page
 
 from dzgui.views.dialogs.note import NoteDialog
-from dzgui.views.trees.tree_mods import ModTreeView
+from dzgui.views.trees.tree_mods import ModTreeView, OfflineModTreeView
 from dzgui.views.trees.tree_log import LogTreeView
 from dzgui.views.trees.tree_servers import ServerTreeView
 from dzgui.views.trees.tree_server_mods import ServerModTreeView
@@ -27,7 +27,13 @@ if TYPE_CHECKING:
 class ContextMenuManager:
     def __init__(
         self,
-        treeview: LogTreeView | ModTreeView | ServerTreeView | ServerModTreeView,
+        treeview: (
+            LogTreeView
+            | ModTreeView
+            | ServerTreeView
+            | ServerModTreeView
+            | OfflineModTreeView
+        ),
         controller: "Controller",
     ) -> None:
         self.controller = controller
@@ -72,10 +78,10 @@ class ContextMenuManager:
                 case ContextMenu.SHOW_MODS:
                     self.controller.get_modlist(record)
 
-        if isinstance(self.treeview, ModTreeView):
+        if isinstance(self.treeview, (ModTreeView, OfflineModTreeView)):
             match action:
-                case ContextMenu.DELETE_MOD:
-                    self.controller.delete_mods()
+                case ContextMenu.UNSUB_MOD:
+                    self.controller.unsub_mods(self.treeview)
                 case ContextMenu.OPEN_WORKSHOP:
                     self.open_mod_page()
 

dzgui/managers/filter.py

@@ -80,6 +80,7 @@ class FilterManager:
         if maps is None:
             return
         if len(maps) < 1:
+            self.reinit_map_store()
             return
 
         self.reinit_map_store()
@@ -89,8 +90,9 @@ class FilterManager:
                 continue
             self.append_map([m])
 
+    # TODO: currently unused
     def get_unique_maps(self) -> list[str]:
-        return [row[0] for row in self.map_store if row != "All maps"]
+        return [row[0] for row in self.map_store if row[0] != "All maps"]
 
     def get_all_filters(self) -> tuple:
         map_name = self.get_active_map_name()

dzgui/managers/mods.py

@@ -1,23 +1,29 @@
 import logging
-import shutil
+import time
 
 from pathlib import Path
-from typing import Any, TYPE_CHECKING
+from typing import TYPE_CHECKING
 
+from dzgui.api.steam import unsubscribe
 from dzgui.api.mods import (
     get_delimited_mods,
-    get_local_mod_path,
     find_stale_mods,
     _hash,
     remove_stale_signatures,
 )
-from dzgui.const.constants import APP_NAME, APPID_DAYZ, APPID_DAYZ_EXP
+from dzgui.const.constants import (
+    API_RATE_LIMIT,
+    APP_NAME,
+    APPID_DAYZ,
+    APPID_DAYZ_EXP,
+)
 from dzgui.const.enum import Preferences
 from dzgui.managers.threading import call_on_thread, StoredFunc, ThreadingManager
 from dzgui.model.model_factory import FastInsertListStore, ModelFactory
 from dzgui.strings import dialogs
 from dzgui.util.format import format_mods
 from dzgui.util.strings import server_timeout
+from dzgui.util.symlink import rebuild_symlinks
 from dzgui.views.dialogs.generic import ExceptionDialog
 
 
@@ -40,39 +46,48 @@ class ModManager:
     this manager is instantiated each time the Mods page is opened
     """
 
-    def __init__(self, controller: "Controller") -> None:
+    def __init__(self, tree: Gtk.TreeView, controller: "Controller") -> None:
+        self.treeview = tree
         self.controller = controller
+
         self.emitter = controller.get_emitter()
         self.prefs = controller.get_prefs()
         self.path = controller.query_config(Preferences.DEFAULT)
-        self.treeview = self.controller.get_modtreeview()
 
-        self.store: FastInsertListStore
+        self.store: FastInsertListStore | None = None
 
         self.thread_man = ThreadingManager(controller)
-        self._get_mods()
 
     @call_on_thread(dialogs.fetching_mods)
-    def _get_mods(self) -> None:
-        mods = get_delimited_mods(self.path)
+    def load_mods(self) -> None:
+        mods = get_delimited_mods(Path(self.path))
         if len(mods) < 1:
             msg = self.format_mod_statusbar()
             func = StoredFunc(lambda: self.emitter.emit("mods_updated", msg, 0))
             self.thread_man.set_cleanup_func(func)
             return
 
-        func = StoredFunc(self._on_mods_loaded, mods)
-        self.thread_man.set_cleanup_func(func)
+        prefs = self.controller.get_prefs()
+        rebuild_symlinks(prefs.paths.config)
 
-    def _on_mods_loaded(self, mods: list[list[Any]]) -> None:
         self.store = ModelFactory().make_mod_store()
         self.store.extend(mods)
+        func = StoredFunc(self._on_mods_loaded)
+
+        self.thread_man.set_cleanup_func(func)
+
+    def set_store(self, store: "FastInsertListStore") -> None:
+        self.store = store
+
+    def _on_mods_loaded(self) -> None:
         self.treeview.set_model(self.store)
+        if self.store is None:
+            return
         msg = self.format_mod_statusbar()
         total_mods = len(self.store)
         self.emitter.emit("mods_updated", msg, total_mods)
 
-    def delete_mods(self) -> None:
+    def unsub_mods(self) -> None:
         sel = self.treeview.get_selection()
         model, pathlist = sel.get_selected_rows()
         # NOTE: reverse when multiple selection
@@ -83,7 +98,8 @@ class ModManager:
                 continue
             mod, _iter = res
             mods.append((mod, _iter))
-        self.delete_mods_on_system(mods)
+        self.thread_man.set_job_count(len(mods))
+        self.unsub_all_mods(mods)
 
     def get_mod_from_tree_path(
         self, tree_path: Gtk.TreePath
@@ -96,43 +112,54 @@ class ModManager:
         return mod, tree_iter
 
     @call_on_thread(dialogs.deleting_mods)
-    def delete_mods_on_system(self, mods: list[tuple[str, Gtk.TreeIter]]) -> None:
+    def unsub_all_mods(self, mods: list[tuple[str, Gtk.TreeIter]]) -> None:
         for mod, _iter in mods:
-            self.delete_single_mod(mod)
+            self.unsub_atomic_mod(mod)
+            self.thread_man.increment_dialog()
+            time.sleep(API_RATE_LIMIT)
 
-        iters = [_iter for mod, _iter in mods]
-        func = StoredFunc(self._on_mods_deleted, iters)
+        func = StoredFunc(self._on_mods_unsubbed, mods)
         self.thread_man.set_cleanup_func(func)
 
-    def delete_single_mod(self, mod: str) -> None:
+    def unsub_atomic_mod(self, mod: str) -> None:
+        config_man = self.controller.get_config_man()
+        key = config_man.lookup(Preferences.STEAM)
+        unsubscribe(key, int(mod))
+
         steam_path = Path(self.path)
-        mods_path = get_local_mod_path(steam_path)
         app_path = PeFile.get_nested_app_path(steam_path, APPID_DAYZ)
 
-        md5 = _hash(mod)
-        symlink = app_path / md5
-        symlink.unlink()
-        shutil.rmtree(mods_path / mod)
-
+        try:
+            md5 = _hash(mod)
+            symlink = app_path / md5
+            symlink.unlink()
+        except Exception as e:
+            logger.warning(e)
         # NOTE: second pass to unlink DAYZ_EXP mods
         # TODO: test this with working APPID_DAYZ_EXP installation
         try:
             app_path_exp = PeFile.get_nested_app_path(steam_path, APPID_DAYZ_EXP)
             symlink = app_path_exp / md5
             symlink.unlink()
-        except PeFile.AppNotInstalledError:
+        except Exception:
             pass
+        time.sleep(API_RATE_LIMIT)
 
-    def _on_mods_deleted(self, iters: list[Gtk.TreeIter]) -> None:
+    def _on_mods_unsubbed(self, mod_iter: list[tuple[str, Gtk.TreeIter]]) -> None:
+        mods = [int(mod) for mod, _iter in mod_iter]
+        iters = [_iter for mod, _iter in mod_iter]
+        if self.store is None:
+            return
         for _iter in iters:
             self.store.remove(_iter)
-        remove_stale_signatures(self.prefs.paths.config, self.prefs.paths.version)
+        # TODO: process config path in called function
+        remove_stale_signatures(self.prefs.paths.config, self.prefs.paths.version, mods)
         model = self.treeview.get_model()
         if model is None:
             return
-        mods = len(model)
+        total_mods = len(model)
         msg = self.format_mod_statusbar()
-        self.emitter.emit("mods_updated", msg, mods)
+        self.emitter.emit("mods_updated", msg, total_mods)
 
     def uncolorize_mods(self) -> None:
         model = self.treeview.get_model()

dzgui/managers/offline.py

@@ -0,0 +1,133 @@
+import logging
+import time
+from pathlib import Path
+from typing import Callable, TYPE_CHECKING, Union
+
+import dzgui.api.pefile as PeFile
+from dzgui.api.mods import is_mission, get_custom_mods
+from dzgui.api.steam import is_dayz_running, launch_offline
+from dzgui.const.constants import APP_NAME, APPID_DAYZ_EXP
+from dzgui.const.enum import Preferences
+from dzgui.managers.threading import call_on_thread, StoredFunc, ThreadingManager
+from dzgui.model.model_factory import ModelFactory
+from dzgui.strings import dialogs
+from dzgui.util.symlink import create_custom_symlinks, rebuild_symlinks, symlink_mission
+from dzgui.views.dialogs.filepicker import FolderPicker
+
+if TYPE_CHECKING:
+    from dzgui.controllers.mc import Controller
+    from dzgui.model.model_factory import FastInsertListStore
+
+logger = logging.getLogger(APP_NAME)
+
+
+class OfflineManager:
+    def __init__(
+        self,
+        controller: "Controller",
+    ) -> None:
+        super().__init__()
+
+        self.controller = controller
+        self.emitter = controller.get_emitter()
+        self.thread_man = ThreadingManager(controller)
+
+        self.appid: int
+        self.local_mods: list[str] | None
+        self.custom_mods: list[str] | None
+
+    # TODO: more robust test
+    def is_custom_folder_valid(self, folder: str) -> bool:
+        return Path(folder).exists()
+
+    # TODO: set properties as members of offline manager on demand and check them here
+    # rather than passing strings again
+    def is_mission_valid(self, folder: str) -> bool:
+        return is_mission(Path(folder))
+
+    def get_mission(self) -> None:
+        folder = self.open_folderpicker(dialogs.mission_dialog)
+        if folder is None:
+            return
+        is_valid = is_mission(folder)
+        self.emitter.emit("custom_mission_loaded", str(folder), is_valid)
+
+    def find_custom_mods(self, callback: Callable) -> None:
+        folder = self.open_folderpicker(dialogs.custom_mod_dialog)
+        window = self.controller.get_window()
+        window.set_sensitive(False)
+        if folder is None:
+            window.set_sensitive(True)
+            return
+        # NOTE: starts spinner in calling UI
+        callback()
+        self.parse_custom_mods(folder)
+
+    @call_on_thread(dialogs.parsing_mods, show_dialog=False)
+    def parse_custom_mods(self, folder: str) -> None:
+        mods = get_custom_mods(Path(folder))
+        store = ModelFactory().make_mod_store()
+        store.extend(mods)
+        func = StoredFunc(self.post_mod_loading, store, folder)
+        self.thread_man.set_cleanup_func(func)
+
+    def post_mod_loading(self, store: "FastInsertListStore", folder: str) -> None:
+        window = self.controller.get_window()
+        window.set_sensitive(True)
+        self.emitter.emit("custom_mods_loaded", store, folder)
+
+    @call_on_thread(dialogs.waiting_for_launch, show_cancel=True)
+    def launch(
+        self,
+        appid: int,
+        mission: str,
+        local_mods: list[str],
+        custom_folder: str,
+        custom_mods: list[str],
+    ) -> None:
+
+        # NOTE: local_mods and custom_mods are lists of symlinks
+        client = self.controller.query_config(Preferences.CLIENT)
+        name = self.controller.query_config(Preferences.NAME)
+        steam_path = self.controller.query_config(Preferences.DEFAULT)
+
+        combined_mods: list[str] = []
+
+        if len(local_mods) > 0:
+            combined_mods.extend(local_mods)
+            config = self.controller.get_prefs().paths.config
+            rebuild_symlinks(config)
+
+        if len(custom_mods) > 0:
+            new_symlinks = create_custom_symlinks(
+                Path(steam_path), Path(custom_folder), custom_mods
+            )
+            combined_mods.extend(new_symlinks)
+
+        relative_link = ""
+        if len(mission) > 0:
+            relative_link = symlink_mission(Path(steam_path), mission)
+
+        launch_offline(client, appid, name, combined_mods, relative_link)
+        while True:
+            if is_dayz_running():
+                break
+            time.sleep(1)
+
+    def open_folderpicker(self, title: str) -> Union["Path", None]:
+        picker = FolderPicker(self.controller.get_window(), title)
+        folder = picker.pick_folder()
+        picker.destroy()
+        return folder
+
+    def has_dayz_exp(self) -> bool:
+        try:
+            default_steam_path = self.controller.query_config(Preferences.DEFAULT)
+            steam_path = Path(default_steam_path)
+            dayz_exp = PeFile.get_pretty_version(steam_path, APPID_DAYZ_EXP)
+            if dayz_exp is None:
+                return False
+            return True
+        except Exception as e:
+            logger.warning(e)
+            return False

dzgui/managers/threading.py

@@ -81,6 +81,11 @@ class ThreadingManager:
     def set_job_count(self, jobs: int) -> None:
         self.jobs = jobs
 
+    def update_emitter(self, signal: str) -> None:
+        if self.controller:
+            emitter = self.controller.get_emitter()
+        GLib.idle_add(lambda: emitter.emit(signal))
+
     def update_dialog(self, msg: str) -> None:
         GLib.idle_add(lambda: self.wait_dialog.update_text(msg))
 

dzgui/model/model_factory.py

@@ -2,7 +2,6 @@ from dataclasses import dataclass
 from typing import Any, Sequence, TYPE_CHECKING
 
 from dzgui.const.enum import HELP_MENU_ROWS
-from dzgui.util.redact import redact_log
 from dzgui.util.strings import delimiter
 
 import gi
@@ -134,9 +133,7 @@ class ModelFactory:
         with open(path, "r") as f:
             lines = [line.split(delimiter) for line in f.read().splitlines()]
             for record in lines:
-                # NOTE: strips PII and API keys
-                clean = redact_log(record)
-                store.append(clean)
+                store.append(record)
         return store
 
     def new_model_from_class(self, cls: type) -> FastInsertListStore:
@@ -165,3 +162,6 @@ class ModelFactory:
 
     def make_server_store(self) -> FastInsertListStore:
         return self.new_model_from_class(ServerCols)
+
+    # def convert_model_to_list(self, model: "FastInsertListStore") -> list:
+    #     return [[el for el in row] for row in model]

dzgui/model/servers.py

@@ -374,7 +374,7 @@ class ServerModelManager:
         proxy = self._get_proxy_man().get_proxy_model()
         self.tv.set_model(proxy)
 
-        if self.controller.get_active_treeview().get_enum == ServerTab.SAVED:
+        if self.controller.get_active_treeview().get_enum() == ServerTab.SAVED:
             self.emitter.emit("servers_loaded", self.enum)
 
         filter_man = self.tv.get_filter_man()
@@ -395,8 +395,10 @@ class ServerModelManager:
         self.first_iteration = False
 
     def _cleanup_on_success(self) -> None:
-        proxy = self._get_proxy_man().get_proxy_model()
+        proxy = self.proxy_man.get_proxy_model()
         self.tv.set_model(proxy)
+        if self.preserve_on_fail is True:
+            self.proxy_man.wipe_cache()
 
         self.emitter.emit("servers_loaded", self.enum)
         if self.first_iteration:

dzgui/strings/dialogs.py

@@ -1,5 +1,6 @@
 waiting_for_launch = "Waiting for DayZ to launch"
-waiting_for_mods = "Waiting for Steam to update mods"
+waiting_for_mods = "Queueing up mods (step 1/2)"
+waiting_for_directories = "Steam is staging mods (step 2/2)"
 
 fetching_update = "Fetching update"
 failed_to_update = "Failed to update DZGUI executable"
@@ -7,7 +8,15 @@ update_success = "Updated successfully. Please exit and relaunch."
 
 load_error_lan = "Failed to find any servers on your network.\nCheck the server query port or your firewall settings."
 fetching_mods = "Fetching mod metadata"
-deleting_mods = "Deleting mods"
+deleting_mods = "Unsubscribing mods"
 scanning_mods = "Scanning mods"
+parsing_mods = "Parsing mods"
 
 checking_api = "Checking API key"
+
+running = "Running"
+failed = "FAILED"
+ok = "OK"
+
+mission_dialog = "Set a mission folder location"
+custom_mod_dialog = "Set location to a custom mods folder"

dzgui/strings/errors.py

@@ -3,3 +3,4 @@ api_validation_error = (
 )
 
 api_popover = "API key validation failed."
+dayz_not_found = "Could not find a valid DayZ installation."

dzgui/strings/generic.py

@@ -0,0 +1 @@
+selectable_tree = "Ctrl-click to select multiple; Shift-click to select a range."

dzgui/strings/offline.py

@@ -0,0 +1,22 @@
+heading = "Play offline"
+
+mission_button = "Select mission folder"
+mission_frame = "Mission"
+
+version = "DayZ Version"
+
+custom_frame = "Custom mods"
+custom_button = "Set custom mod folder"
+
+local_frame = "Installed mods"
+
+no_local_mods = "No local mods found"
+no_mods = "No valid mods found"
+no_mission = "Not a valid mission"
+folder_changed = "Folder missing or changed on disk"
+
+custom_eventbox = "Set the root folder. Mods must be in atomic folders and have a meta.cpp file at a minimum."
+mission_eventbox = "Select a single mission folder containing an init.c file."
+
+folder_prefix = "<b>Current folder: </b>"
+unset_button = "Unset folder"

dzgui/strings/preboot.py

@@ -3,3 +3,4 @@ signatures = "Updating mod signatures"
 geo = "Checking geolocation records"
 coords = "Checking local coordinates"
 updates = "Checking for updates"
+dayz = "Looking for DayZ"

dzgui/strings/preconnect.py

@@ -10,6 +10,7 @@ warnings = "Warnings"
 errors = "Errors"
 mods = "Mods"
 total_mods = "Total mods: "
+up_to_date = "All mods are up to date."
 all_updated = "All mods updated."
 "If you recently installed {build} or moved it to a different drive, "
 "restart Steam to allow these changes to synchronize, then try again."

dzgui/strings/wizard.py

@@ -64,6 +64,25 @@ radio_mi = "mi (miles)"
 label_dist = "Distance display"
 label_client = "Steam client"
 
+### Shortcuts page
+heading_shortcuts = "Create shortcuts"
+blurb_shortcuts = (
+    "You can optionally create shortcuts to facilitate launching DZGUI faster."
+)
+button_shortcuts = "Create shortcuts"
+checkbox_steam_shortcut = (
+    "Add DZGUI to Steam library",
+    (
+        "This creates a standalone copy of DZGUI and adds it to Steam. "
+        "You <b>must restart Steam</b> for the shortcut to appear. This will not replace or update existing shortcuts. "
+        "If you update DZGUI when it is launched via Steam, updates will be applied to the Steam version."
+    ),
+)
+checkbox_start_menu = (
+    "Add a start menu shortcut",
+    "Depends on local window manager settings. Will work on Steam Deck.",
+)
+checkbox_desktop_shortcut = ("Add a desktop shortcut", "Depends on the option above.")
 
 ### Completion page
 heading_completion = "Setup complete"

dzgui/util/diag.py

@@ -1,3 +1,4 @@
+import logging
 import os
 import platform
 
@@ -9,7 +10,9 @@ from dzgui.const.constants import APP_NAME
 from dzgui.const.enum import Preferences
 from dzgui.config.query import lookup
 from dzgui.init.prefix import get_version
-from dzgui.util.redact import redact
+from dzgui.util.redact import redact_home
+
+logger = logging.getLogger(APP_NAME)
 
 
 def get_cpu_model() -> str:
@@ -38,15 +41,19 @@ def print_mods(mods: list[int]) -> str:
 
 
 def write_diagnostic(config: Path, outfile: Path) -> None:
-    # TODO: test availability on other distros
     date = datetime.now().isoformat()
 
-    distro = platform.freedesktop_os_release()["ID_LIKE"]
+    try:
+        # FIXME: ID_LIKE not available on CachyOS
+        distro = platform.freedesktop_os_release()["ID_LIKE"]
+    except Exception as e:
+        logger.warn(e)
+        distro = "Unknown"
+
     kernel = os.uname().release
     cpu = get_cpu_model()
     version = get_version()
 
-    branch = lookup(config, Preferences.BRANCH)
     debug = lookup(config, Preferences.DEBUG)
     install = lookup(config, Preferences.INSTALL)
     default = lookup(config, Preferences.DEFAULT)
@@ -54,8 +61,8 @@ def write_diagnostic(config: Path, outfile: Path) -> None:
     steam_path = Path(default)
     workshop_path = get_local_mod_path(steam_path)
 
-    steam_redacted = redact(default)
-    workshop_redacted = redact(str(workshop_path))
+    steam_redacted = redact_home(default)
+    workshop_redacted = redact_home(str(workshop_path))
 
     mods = get_local_mod_ids(steam_path)
     mods_pretty = print_mods(mods)
@@ -65,7 +72,7 @@ def write_diagnostic(config: Path, outfile: Path) -> None:
 
     # FIXME: extraneous newlines in lists of mods
     template = f"""\
-    {APP_NAME} version {version} ({branch})
+    {APP_NAME} version {version}
     Date: {date}
     ===============================
     Distribution: {distro}

dzgui/util/dirs.py

@@ -0,0 +1,32 @@
+import logging
+import os
+import shutil
+
+from importlib import resources
+from pathlib import Path
+
+from dzgui.const.constants import APP_NAME, APP_NAME_LOWER, IMAGES_PATH
+
+logger = logging.getLogger(APP_NAME)
+
+
+def make_parents(path: "Path") -> None:
+    path.parent.mkdir(parents=True, exist_ok=True)
+
+
+def copy_dzgui_to_xdg_data(exe_path: Path) -> None:
+    dzgui = os.getenv("PYAPP")
+    if dzgui is None:
+        return
+    try:
+        make_parents(exe_path)
+        shutil.copy(dzgui, exe_path)
+    except Exception as e:
+        logger.critical(e)
+
+
+def find_icon_resource() -> "Path":
+    traversable = resources.files(APP_NAME_LOWER).joinpath(IMAGES_PATH)
+    images = Path(str(traversable))
+    icon = images.joinpath("icon.png")
+    return icon

dzgui/util/format.py

@@ -1,6 +1,7 @@
 import re
 
 from dzgui.util.localize import number
+from dzgui.strings.generic import selectable_tree
 from dzgui.util.strings import no_mods, no_servers, workshop
 
 import gi
@@ -46,8 +47,7 @@ def format_mods(size: int, mods: int) -> str:
         return no_mods
     l_size = number(size)
     plural = pluralize("mods", mods)
-    # TODO: strings
-    suffix = "Ctrl-click to select multiple; Shift-click to select a range."
+    suffix = selectable_tree
     return f"Found {mods:n} {plural} taking up {l_size} MiB. {suffix}"
 
 

dzgui/util/redact.py

@@ -1,20 +1,29 @@
+import logging
 import re
+from typing import Literal
 
-def redact(text: str) -> str:
-    r = r"(/home/)([^/])*"
-    cleaned = re.sub(r, r"/home/REDACTED", text)
+api_filter = r"(.*&key=)([^&]*)(.*)"
+home_filter = r"(/home/)([^\s'\/]*)(.*)"
+REDACTED = r"\1REDACTED\3"
+REDACTION_PATTERNS = [api_filter, home_filter]
+
+
+def redact_home(text: str) -> str:
+    pat = re.compile(home_filter)
+    cleaned = pat.sub(REDACTED, text)
     return cleaned
 
-def redact_log(record: list) -> list[str]:
-    """
-    requests library includes Steam API key in URL params
-    """
-    clean = []
-    for item in record:
-        if "&key=" in item:
-            pat = r"(.*&key=)(\S+)(.*)"
-            scrubbed = re.sub(pat, r"\1REDACTED\3", item)
-            clean.append(scrubbed)
-        else:
-            clean.append(item)
-    return clean
+
+class RedactionFilter(logging.Filter):
+    def __init__(self, patterns: list[str] | None = None) -> None:
+        super().__init__()
+        self._patterns = [re.compile(pat) for pat in (patterns or [])]
+
+    def filter(self, record: logging.LogRecord) -> Literal[True]:
+        for pattern in self._patterns:
+            try:
+                record.msg = pattern.sub(REDACTED, record.msg)
+            except TypeError:
+                exception_text = f"{type(record.msg).__name__}: {record.msg}"
+                record.msg = pattern.sub(REDACTED, exception_text)
+        return True

dzgui/util/strings.py

@@ -52,7 +52,7 @@ show_mods = "Show server-side mods"
 show_details = "Show server details"
 refresh_players = "Refresh player count"
 open_workshop = "Open in Steam Workshop"
-delete_mod = "Delete mod"
+unsub_mod = "Unsubscribe mod"
 copy_name = "Copy name to clipboard"
 copy_ip = "Copy IP to clipboard"
 copy_log = "Copy record(s) to clipboard"
@@ -64,7 +64,7 @@ connect = "Connect"
 
 # Columns
 server_mod_cols = ["Mod", "ID", "Installed"]
-mod_cols = ["Mod", "Symlink", "Dir", "Size (MiB)", "Color"]
+mod_cols = ["Mod", "Symlink", "ID", "Size (MiB)", "Color"]
 log_cols = ["Timestamp", "Flag", "Traceback", "Message"]
 browser_cols = [
     "Name",
@@ -130,7 +130,6 @@ servers = {
     "Enter/space/double-click": "connect to server",
     "Right-click/Ctrl-l": "additional context menus",
     "Ctrl-r": "refresh players",
-    "Ctrl-p": "refresh ping",
     "Ctrl-f": "jump to keyword search field",
     "Ctrl-m": "jump to maps field",
     "Ctrl-d": "select default LAN port",
@@ -148,8 +147,8 @@ servers = {
 vim = {
     "j": "Move down a row/scroll up",
     "k": "Move up a row/scroll down",
-    "l": "Jump to main area from sidebar",
-    "h": "Jump to sidebar from main area",
+    "h": "Jump to main area from sidebar",
+    "l": "Jump to sidebar from main area",
     "g": "Jump to first row/top of page",
     "G": "Jump to last row/bottom of page",
 }
@@ -215,8 +214,8 @@ class ModPanelStrings:
     unhighlight_stale_tooltip: str
     highlight_stale: str
     highlight_stale_tooltip: str
-    delete_selected: str
-    delete_selected_tooltip: str
+    unsub_selected: str
+    unsub_selected_tooltip: str
     unselect_all: str
     unselect_all_tooltip: str
     select_all: str
@@ -273,6 +272,7 @@ class Crumbs:
     thanks: str
     developers: str
     default: str
+    offline: str
 
 
 @dataclass(slots=True, frozen=True)
@@ -336,8 +336,8 @@ mod_panel = ModPanelStrings(
         "Shows locally-installed mods which are not used by any server "
         "in your Saved Servers"
     ),
-    delete_selected="Delete selected",
-    delete_selected_tooltip="Deletes selected mods from the system",
+    unsub_selected="Unsubscribe selected",
+    unsub_selected_tooltip="Unsubscribes from selected mods",
     unselect_all="Unselect all",
     unselect_all_tooltip="Bulk unselects all mods",
     select_all="Select all",
@@ -366,6 +366,7 @@ thanks = Thanks(
         "Johnofwrong",
         "MatheusLasserr",
         "nolan-perez",
+        "OnniSaarni",
         "scandalouss",
         "SnackSBR",
         "StevelDusa",
@@ -462,6 +463,7 @@ crumbs = Crumbs(
     thanks="Help > Special thanks",
     developers="Options > Developers",
     default="Servers > ",
+    offline="Mods > Play offline",
 )
 
 no_mods = "No local mods found."

dzgui/util/symlink.py

@@ -2,7 +2,7 @@ import logging
 from pathlib import Path
 
 from dzgui.api.mods import get_local_mod_path, get_local_mod_ids, _hash
-from dzgui.const.constants import APPID_DAYZ, APPID_DAYZ_EXP, APP_NAME
+from dzgui.const.constants import APPID_DAYZ, APPID_DAYZ_EXP, APP_NAME, DAYZ_COMMUNITY_ROOT
 from dzgui.const.enum import Preferences
 from dzgui.config.query import lookup
 
@@ -11,14 +11,23 @@ import dzgui.api.pefile as PeFile
 logger = logging.getLogger(APP_NAME)
 
 
+def expunge_link(file: Path) -> None:
+    if not file.is_symlink():
+        return
+    # NOTE: unlink stale symlinks
+    if file.exists() is False:
+        file.unlink()
+    if str(file.stem)[:2] == "@C":
+        file.unlink()
+
 def rebuild_symlinks(config: Path) -> None:
+    # TODO: pass direct path as argument
     path = lookup(config, Preferences.DEFAULT)
     steam_path = Path(path)
     dayz_path = PeFile.get_nested_app_path(steam_path, APPID_DAYZ)
-    # NOTE: unlink stale symlinks
     for file in dayz_path.iterdir():
-        if file.is_symlink() and file.exists() is False:
-            file.unlink()
+        expunge_link(file)
+
     workshop = get_local_mod_path(steam_path)
     # NOTE: create symlinks for missing mods
     for mod_id in get_local_mod_ids(steam_path):
@@ -30,6 +39,37 @@ def rebuild_symlinks(config: Path) -> None:
     clone_symlinks(steam_path)
 
 
+def create_custom_symlinks(
+    steam_path: Path, custom_dir: Path, uids: list[str]
+) -> list[str]:
+    dayz_path = PeFile.get_nested_app_path(steam_path, APPID_DAYZ)
+    links = []
+    for uid in uids:
+        md5sum = _hash(uid, use_custom=True)
+        source = dayz_path.joinpath(md5sum)
+        target = custom_dir.joinpath(uid)
+        links.append(md5sum)
+        if source.exists() is False:
+            source.symlink_to(target)
+    clone_symlinks(steam_path)
+    return links
+
+
+def symlink_mission(steam_path: Path, target: str) -> str:
+    dayz_path = PeFile.get_nested_app_path(steam_path, APPID_DAYZ)
+    for file in dayz_path.iterdir():
+        expunge_link(file)
+    path = Path(target)
+    stem = path.name
+    parent = path.parent
+    source = dayz_path.joinpath(DAYZ_COMMUNITY_ROOT)
+    try:
+        source.symlink_to(parent)
+    except Exception:
+        return ""
+    return f"{DAYZ_COMMUNITY_ROOT}/{stem}"
+
+
 def clone_symlinks(steam_path: Path) -> None:
     """
     Shares symlinks between builds. Used after any symlink operation

dzgui/views/base.py

@@ -23,6 +23,8 @@ from dzgui.views.pages.help import Help
 from dzgui.views.pages.keys import Keybindings
 from dzgui.views.pages.log import Log
 from dzgui.views.pages.mods import Mods
+
+from dzgui.views.pages.offline import OfflineLoader
 from dzgui.views.pages.options import Options
 from dzgui.views.pages.preconnect import PreConnectionAssistant
 from dzgui.views.pages.servers import ServerNotebook
@@ -68,7 +70,6 @@ class OuterWindow(Gtk.Window):
         MainController.set_start_tab()
         self.grid.hide_widgets_on_init()
 
-        # TODO: POC, trigger page change here
         MainController.loaded = True
         MainController.populate_model(MainController.get_active_treeview())
 
@@ -110,8 +111,11 @@ class Notebook(ScrollableMixin, Gtk.Notebook):  # type: ignore
 
         self.connection = PreConnectionAssistant(MainController)
 
+        self.offline = OfflineLoader(MainController)
+
         self.pages = {
             self.help: NotebookPage.HELP,
+            self.offline: NotebookPage.OFFLINE,
             self.clog: NotebookPage.CHANGELOG,
             self.keys: NotebookPage.KEYS,
             self.settings: NotebookPage.OPTIONS,

dzgui/views/components/box.py

@@ -0,0 +1,25 @@
+from typing import Sequence
+
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk  # noqa
+
+
+class GenericBox(Gtk.Box):
+    def __init__(self, orientation: Gtk.Orientation, spacing: int = 0) -> None:
+        super().__init__(orientation=orientation, spacing=spacing)
+
+    def extend(self, els: Sequence[Gtk.Widget]) -> None:
+        for el in els:
+            self.add(el)
+
+
+class HBox(GenericBox):
+    def __init__(self, spacing: int = 0) -> None:
+        super().__init__(orientation=Gtk.Orientation.HORIZONTAL, spacing=spacing)
+
+
+class VBox(GenericBox):
+    def __init__(self, spacing: int = 0) -> None:
+        super().__init__(orientation=Gtk.Orientation.VERTICAL, spacing=spacing)

dzgui/views/components/buttons.py

@@ -31,40 +31,61 @@ if TYPE_CHECKING:
 
 
 class Icon(Gtk.Image):
-    def __init__(self, name: str, l_margin: int = 0) -> None:
+    def __init__(self, name: str, margin_start: int = 0, margin_end: int = 0) -> None:
         super().__init__(
             icon_name=name,
             icon_size=Gtk.IconSize.BUTTON,
-            margin_start=l_margin,
+            margin_start=margin_start,
+            margin_end=margin_end,
             ypad=2,
         )
 
 
 class LargeIcon(Gtk.Image):
-    def __init__(self, name: str, l_margin: int = 5) -> None:
+    def __init__(self, name: str, margin_start: int = 5, margin_end: int = 0) -> None:
         super().__init__(
-            icon_name=name, icon_size=Gtk.IconSize.LARGE_TOOLBAR, margin_start=l_margin
+            icon_name=name,
+            icon_size=Gtk.IconSize.LARGE_TOOLBAR,
+            margin_start=margin_start,
+            margin_end=margin_end,
         )
 
 
 class IconButton(Gtk.Button):
-    def __init__(self, icon: str, margin: int = 0) -> None:
+    def __init__(
+        self,
+        icon: str,
+        position: Gtk.PositionType = Gtk.PositionType.RIGHT,
+        margin_start: int = 0,
+        margin_end: int = 0,
+    ) -> None:
         super().__init__()
-        self.icon = Icon(icon, l_margin=margin)
+        self.icon = Icon(icon, margin_start=margin_start, margin_end=margin_end)
         self.set_image(self.icon)
-        self.set_image_position(Gtk.PositionType.RIGHT)
+        self.set_image_position(position)
+        # self.set_image_position(Gtk.PositionType.RIGHT)
         self.set_focus_on_click(False)
 
 
 class IconTextButton(IconButton):
-    def __init__(self, icon: str, label: str) -> None:
-        super().__init__(icon, margin=5)
+    def __init__(
+        self, icon: str, label: str, position: Gtk.PositionType = Gtk.PositionType.RIGHT
+    ) -> None:
+        match position:
+            case Gtk.PositionType.RIGHT:
+                super().__init__(icon, position, margin_start=5)
+            case Gtk.PositionType.LEFT:
+                super().__init__(icon, position, margin_end=5)
+            case _:
+                raise ValueError("Unsupported position type")
         self.set_label(label)
 
 
 class LargeIconTextButton(IconButton):
-    def __init__(self, icon: str, label: str) -> None:
-        super().__init__(icon)
+    def __init__(
+        self, icon: str, label: str, position: Gtk.PositionType = Gtk.PositionType.RIGHT
+    ) -> None:
+        super().__init__(icon, position)
         self.set_label(label)
         self.set_image(LargeIcon(icon))
 
@@ -120,6 +141,8 @@ class RefreshButton(IconTextButton):
 
     def _on_refresh_clicked(self, button: Self) -> None:
         """Spawned in a thread"""
+        if self.controller.get_active_treeview().is_loaded() is False:
+            return
         self.is_clicked = True
         self.controller.refresh_tree()
         # TODO: get server tab enum
@@ -187,6 +210,8 @@ class SteamWorkshopButton(SteamTextButton):
     def __init__(self) -> None:
         super().__init__(label=buttons.workshop)
         self.set_tooltip_text(buttons.workshop_tooltip)
+        self.set_margin_top(10)
+        self.set_margin_bottom(10)
 
 
 class AddButton(IconTextButton):

dzgui/views/components/connect_box.py

@@ -0,0 +1,68 @@
+from dzgui.strings import preconnect
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gdk, Gtk  # noqa E402
+
+
+class ConnectBox(Gtk.Box):
+    def __init__(self) -> None:
+        super().__init__(orientation=Gtk.Orientation.HORIZONTAL, spacing=5)
+
+        self.back = Gtk.Button(
+            label=preconnect.back, halign=Gtk.Align.END, hexpand=True
+        )
+
+        # TODO: dynamically update this
+        self.ok = Gtk.Button(label="Launch", halign=Gtk.Align.END)
+
+        for button in self.back, self.ok:
+            self.add(button)
+
+    def get_back_button(self) -> Gtk.Button:
+        return self.back
+
+    def get_ok_button(self) -> Gtk.Button:
+        return self.ok
+
+
+class PreconnectBox(Gtk.Box):
+    def __init__(self) -> None:
+        super().__init__(
+            orientation=Gtk.Orientation.VERTICAL,
+            valign=Gtk.Align.END,
+            vexpand=True,
+            spacing=5,
+        )
+
+        self.button_hbox = ConnectBox()
+        self.ok = self.button_hbox.get_ok_button()
+        self.ok.set_label(preconnect.update_mods)
+
+        self.connect_last = Gtk.Button(
+            label=preconnect.connect_last,
+            halign=Gtk.Align.END,
+            tooltip_text=preconnect.connect_last_tooltip,
+        )
+        self.button_hbox.add(self.connect_last)
+
+        self.raise_window = Gtk.CheckButton(
+            # TODO: strings
+            label="Foreground DZGUI while downloading",
+            halign=Gtk.Align.END,
+            hexpand=True,
+            valign=Gtk.Align.END,
+            visible=False,
+            has_tooltip=True,
+            sensitive=False,
+            tooltip_text="Foreground the DZGUI window after mod downloads are queued",
+            active=True,
+        )
+        self.add(self.button_hbox)
+        self.add(self.raise_window)
+
+    def get_back_button(self) -> Gtk.Button:
+        return self.button_hbox.get_back_button()
+
+    def get_ok_button(self) -> Gtk.Button:
+        return self.ok

dzgui/views/components/connect_panel.py

@@ -20,7 +20,8 @@ gi.require_version("Gtk", "3.0")
 from gi.repository import Gtk, Gdk  # noqa E402
 
 if TYPE_CHECKING:
-    from dzgui.controllers.mc import Controller, Emitter
+    from dzgui.controllers.mc import Controller
+    from dzgui.controllers.emitter import Emitter
 
 COLS = 1
 ROWS = 1

dzgui/views/components/frame.py

@@ -1,3 +1,4 @@
+from typing import Self
 from dzgui.util import css
 
 import gi
@@ -6,16 +7,23 @@ gi.require_version("Gtk", "3.0")
 from gi.repository import Gtk  # noqa
 
 
+# TODO: subclass Gtk.Frame directly
 class HeadingFrame(Gtk.Box):
-    def __init__(self, widget: Gtk.Widget, heading: str) -> None:
+    def __init__(self, heading: str = "") -> None:
         super().__init__(orientation=Gtk.Orientation.VERTICAL)
 
-        label = Gtk.Label(label=heading)
-        label.set_halign(Gtk.Align.START)
-        css.add_class(label, "settings-subheading")
+        self.label = Gtk.Label(label=heading)
+        self.label.set_halign(Gtk.Align.START)
+        css.add_class(self.label, "settings-subheading")
 
-        frame = Gtk.Frame(hexpand=True)
-        frame.add(widget)
-        frame.set_label_widget(label)
+        self.frame = Gtk.Frame(hexpand=True)
+        self.frame.set_label_widget(self.label)
 
-        self.add(frame)
+        self.add(self.frame)
+
+    @classmethod
+    def new_with_widget_and_label(cls, widget: Gtk.Widget, label: str) -> Self:
+        n = cls()
+        n.frame.add(widget)
+        n.label.set_label(label)
+        return n

dzgui/views/components/mod_panel.py

@@ -11,7 +11,8 @@ gi.require_version("Gtk", "3.0")
 from gi.repository import Gtk  # noqa E402
 
 if TYPE_CHECKING:
-    from dzgui.controllers.mc import Controller, Emitter
+    from dzgui.controllers.mc import Controller
+    from dzgui.controllers.emitter import Emitter
 
 
 class EnumeratedModButton(Gtk.Button):
@@ -48,7 +49,7 @@ class ModSelectionPanel(Gtk.Box):
         buttons = (
             ModButton.SELECT_ALL,
             ModButton.UNSELECT_ALL,
-            ModButton.DELETE_SELECTED,
+            ModButton.UNSUB_SELECTED,
         )
         for button in buttons:
             b = EnumeratedModButton(button)
@@ -79,14 +80,18 @@ class ModSelectionPanel(Gtk.Box):
         self.highlight_stale_button.set_sensitive(True)
 
     def _on_mods_updated(self, emitter: "Emitter", msg: str, mods: int) -> None:
-        if mods < 1:
-            self.main_panel.set_sensitive(False)
-            self.stale_panel.set_sensitive(False)
+        self._toggle_panel_sensitivity(mods)
+
+    def _toggle_panel_sensitivity(self, mods: int) -> None:
+        state = bool(mods)
+        for el in self.main_panel, self.stale_panel:
+            el.set_sensitive(state)
 
     def _on_mods_highlighted(self, emitter: "Emitter") -> None:
         self.swap_sensitive(True)
 
-    def _on_mod_page_toggled(self, emitter: "Emitter", state: bool) -> None:
+    def _on_mod_page_toggled(self, emitter: "Emitter", state: bool, mods: int) -> None:
+        self._toggle_panel_sensitivity(mods)
         self.set_visible(state)
 
     def swap_sensitive(self, state: bool) -> None:
@@ -100,8 +105,8 @@ class ModSelectionPanel(Gtk.Box):
                 self.controller.toggle_mod_selection(True)
             case ModButton.UNSELECT_ALL:
                 self.controller.toggle_mod_selection(False)
-            case ModButton.DELETE_SELECTED:
-                self.controller.delete_mods()
+            case ModButton.UNSUB_SELECTED:
+                self.controller.unsub_mods()
             case ModButton.HIGHLIGHT_STALE:
                 self.controller.highlight_stale()
             case ModButton.UNHIGHLIGHT_STALE:

dzgui/views/components/statusbar.py

@@ -71,6 +71,7 @@ class Statusbar(Gtk.Grid):
             NotebookPage.CHANGELOG,
             NotebookPage.LOG,
             NotebookPage.CONNECTION,
+            NotebookPage.OFFLINE,
         ):
             self.prior_enum = enum
             self.set_by_context(enum, esc_to_return)
@@ -106,6 +107,7 @@ class Statusbar(Gtk.Grid):
         self.prior_status = ""
         # FIXME: CalcDist is being called when table is not loaded
         if dist is None:
+            self.set_by_context(context, "")
             return
         else:
             pretty = self.append_distance(dist)

dzgui/views/dialogs/boot.py

@@ -1,19 +1,19 @@
 import sys
-from typing import Literal, TYPE_CHECKING
+from typing import Any, Literal, Self, TYPE_CHECKING
 
 # import time
 from enum import Enum
-from typing import Any, Self
 
 # TODO: import dialog titles
 from dzgui.api.mods import remove_stale_signatures as remove_stale
 from dzgui.config.ipdb import get_ipdb
 from dzgui.const.constants import HEX_GREEN, HEX_RED
 from dzgui.init.coords import get_local_coords
+from dzgui.init.dayz import is_dayz_installed
 from dzgui.init.update import check_updates
 from dzgui.const.constants import EXPAND, FILL
 from dzgui.managers.threading import call_on_thread, StoredFunc, ThreadingManager
-from dzgui.strings import preboot
+from dzgui.strings import preboot, dialogs
 from dzgui.util.format import format_exception
 from dzgui.util.strings import dialog_header
 from dzgui.util.symlink import rebuild_symlinks
@@ -58,6 +58,9 @@ class BootDialog(Gtk.Dialog):
         self.view = Gtk.TreeView(enable_search=False, headers_visible=False)
         self.view.set_model(self.store)
 
+        # TODO: capture sigint in early dialogs
+        self.connect("key-press-event", self._on_keypress)
+
         for i, column_title in enumerate(["Task", "State"]):
             renderer = Gtk.CellRendererText()
             column = Gtk.TreeViewColumn(column_title, renderer, text=i)
@@ -119,6 +122,7 @@ class BootDialog(Gtk.Dialog):
         self.error_box.hide()
 
         steps = [
+            (StoredFunc(is_dayz_installed, self.xdg.config), preboot.dayz, False),
             (StoredFunc(rebuild_symlinks, self.xdg.config), preboot.symlinks, False),
             (
                 StoredFunc(remove_stale, self.xdg.config, self.xdg.version),
@@ -126,6 +130,7 @@ class BootDialog(Gtk.Dialog):
                 False,
             ),
             (StoredFunc(get_ipdb, self.xdg.ips), preboot.geo, False),
+            # TODO: handle IP DB failure and use coords fallback
             (StoredFunc(get_local_coords, self.xdg.ips), preboot.coords, True),
             (StoredFunc(check_updates, self.version), preboot.updates, True),
         ]
@@ -135,6 +140,10 @@ class BootDialog(Gtk.Dialog):
 
         GLib.timeout_add(100, self.pulse_spinner)
 
+    def _on_keypress(self, widget: Self, event: Gdk.EventKey) -> None:
+        if event.keyval == Gdk.KEY_Escape:
+            self.exit_button.emit("clicked")
+
     def pulse_spinner(self) -> Literal[True]:
         for row in self.store:
             if row[2]:
@@ -181,10 +190,10 @@ class BootDialog(Gtk.Dialog):
             self.thread_man.set_cleanup_func(callback)
 
     def update_task(self, task: str) -> None:
-        self.store.append((task, "Running", True, 0))
+        self.store.append((task, dialogs.running, True, 0))
 
     def update_status(self, state: Success) -> None:
-        d = {Success.OK: "OK", Success.FAIL: "FAILED"}
+        d = {Success.OK: dialogs.ok, Success.FAIL: dialogs.failed}
         msg = d[state]
         self.store[len(self.store) - 1][1] = msg
         self.iter_step()
@@ -197,7 +206,7 @@ class BootDialog(Gtk.Dialog):
         it: Gtk.TreeIter,
         data: Any,
     ) -> None:
-        if model[it][1] == "Running":
+        if model[it][1] == dialogs.running:
             cell.set_property("visible", True)
         else:
             cell.set_property("visible", False)
@@ -214,9 +223,9 @@ class BootDialog(Gtk.Dialog):
         state = model[it][1]
         if column.get_sort_column_id() != 1:
             return
-        if state == "OK":
+        if state == dialogs.ok:
             cell.set_property(prop, HEX_GREEN)
-        elif state == "FAILED":
+        elif state == dialogs.failed:
             cell.set_property(prop, HEX_RED)
         else:
             cell.set_property(prop, None)

dzgui/views/dialogs/filepicker.py

@@ -33,3 +33,36 @@ class FilePicker(Gtk.FileChooserDialog):
                 self.destroy()
                 return Path(file)
         return None
+
+
+class FolderPicker(Gtk.FileChooserDialog):
+    def __init__(self, parent: Gtk.Window, title: str) -> None:
+        super().__init__(
+            title=title,
+            action=Gtk.FileChooserAction.SELECT_FOLDER,
+            parent=parent,
+            resizable=True,
+        )
+        self.add_buttons("_Cancel", Gtk.ResponseType.CANCEL)
+        self.add_buttons("_OK", Gtk.ResponseType.OK)
+        self.set_default_response(Gtk.ResponseType.OK)
+
+    def pick_folder(self) -> Path | None:
+        res = self.run()
+        if res in (Gtk.ResponseType.CANCEL, Gtk.ResponseType.DELETE_EVENT):
+            self.destroy()
+            return None
+        if res == Gtk.ResponseType.OK:
+            folder = self.get_current_folder()
+            if folder is None:
+                try:
+                    uri = self.get_uri()
+                    if uri is None:
+                        return None
+                    return Path.from_uri(uri)
+                except Exception:
+                    # FIXME: edge cases
+                    return Path("/")
+            self.destroy()
+            return Path(folder)
+        return None

dzgui/views/dialogs/wizard.py

@@ -1,11 +1,13 @@
+import os
 import textwrap
 
 from enum import Enum
 from importlib import resources
 from pathlib import Path
-from typing import Any, Callable, Self
+from typing import Any, Callable, Self, TYPE_CHECKING
 
 from dzgui.api.probe import test_steam_api, test_bm_api
+from dzgui.api.shortcuts import add_steam_shortcut
 from dzgui.api.steam import get_steam_paths
 from dzgui.const.constants import (
     APP_NAME,
@@ -15,6 +17,9 @@ from dzgui.const.constants import (
 )
 from dzgui.const.boilerplate import config_boilerplate
 from dzgui.const.endpoints import BM_API_SETUP, STEAM_API_SETUP
+from dzgui.const.enum import Preferences
+from dzgui.config import freedesktop
+from dzgui.config.query import lookup
 from dzgui.init.migrate import migrate_legacy_conf
 from dzgui.managers.threading import call_on_thread, StoredFunc, ThreadingManager
 from dzgui.strings import wizard
@@ -30,6 +35,9 @@ import gi
 gi.require_version("Gtk", "3.0")
 from gi.repository import Gdk, Gtk, GLib, GObject, GdkPixbuf  # noqa E402
 
+if TYPE_CHECKING:
+    from dzgui.config.xdg import Xdg
+
 
 class PageNum(Enum):
     INTRO = 1
@@ -38,7 +46,8 @@ class PageNum(Enum):
     STEAM_API = 4
     BM_API = 5
     USER_PREFS = 6
-    FINAL = 7
+    SHORTCUTS = 7
+    FINAL = 8
 
 
 class DescriptionArea(Gtk.Box):
@@ -58,7 +67,7 @@ class Progress(Gtk.ProgressBar):
 
 class ScrolledWizardPage(Gtk.ScrolledWindow):
     def __init__(self, enum: PageNum, heading: str, description: str):
-        super().__init__()
+        super().__init__(overlay_scrolling=False)
 
         self.enum = enum
         self.page_type: Gtk.AssistantPageType
@@ -141,6 +150,10 @@ class NotificationFrame(Gtk.Frame):
         if error:
             add_class(self, "error-frame")
 
+    def set_text(self, text: str) -> None:
+        wrapped = textwrap.fill(text, width=80)
+        self.label.set_markup(wrapped)
+
 
 class APIValidationPage(ScrolledWizardPage):
     def __init__(
@@ -339,6 +352,7 @@ class ConfigMigrationPage(ScrolledWizardPage):
     def _on_import_clicked(self, button: Gtk.Button) -> None:
         self.grid.set_sensitive(False)
         try:
+            # TODO: this could be deferred to the final page (prevents accidental destruction of dialog via ESC)
             migrate_legacy_conf(self.config)
             self.migrated = True
             self.success_box.set_visible(True)
@@ -423,24 +437,28 @@ class CompletionPage(ScrolledWizardPage):
 
 
 class Assistant(Gtk.Assistant):
-    def __init__(self, is_deck: bool, config: Path):
+    def __init__(self, is_deck: bool, XDG: "Xdg"):
         super().__init__()
         if is_deck:
-            self.fullscreen()
+            # NOTE: deemed to be "safe" dimensions that exclude taskbar size
+            self.set_default_size(1085, 670)
         else:
             self.set_default_size(1500, 900)
 
-        self.config_path = config
+        self.config_path = XDG.config
 
         self.config_values: dict[str, Any] = config_boilerplate
 
+        self.setup_complete = False
+
         self.page1 = IntroductionPage()
-        self.page2 = ConfigMigrationPage(config)
+        self.page2 = ConfigMigrationPage(XDG.config)
         self.page3 = SteamPathPage()
         self.page4 = SteamValidationPage()
         self.page5 = BMValidationPage()
         self.page6 = PreferencesPage()
-        self.page7 = CompletionPage()
+        self.page7 = ShortcutCreationPage(XDG.shortcut)
+        self.page8 = CompletionPage()
 
         self.set_forward_page_func(self._advance_page)
 
@@ -458,9 +476,16 @@ class Assistant(Gtk.Assistant):
             self.page5,
             self.page6,
             self.page7,
+            self.page8,
         ):
             # NOTE: skip config migration page if no legacy config file
-            if page == self.page2 and self.has_legacy_config is False:
+            if (
+                isinstance(page, ConfigMigrationPage)
+                and self.has_legacy_config is False
+            ):
+                continue
+            # NOTE: disabled for now on system-provided packages
+            if isinstance(page, ShortcutCreationPage) and os.getenv("PYAPP") is None:
                 continue
             self._add_page(page, page.get_page_type())
 
@@ -475,13 +500,15 @@ class Assistant(Gtk.Assistant):
 
     def _advance_page(self, index: int) -> int:
         page = self.get_nth_page(index)
-        # TODO: use enums
+        # TODO: use enums/isinstance
         match page:
             case self.page1:
                 pass
             case self.page2:
                 if self.page2.is_migrated():
-                    return self.get_n_pages() - 1
+                    steam_path = lookup(self.config_path, Preferences.DEFAULT)
+                    self.page7.set_steam_path(steam_path)
+                    return self.get_n_pages() - 2
             case self.page3:
                 self.config_values["default_steam_path"] = page.get_path_from_radio()
             case self.page4:
@@ -495,10 +522,17 @@ class Assistant(Gtk.Assistant):
                 self.config_values["use_miles"] = use_miles
                 self.config_values["client"] = client
                 self.write_config()
+                self.page7.set_steam_path(self.config_values["default_steam_path"])
+            case self.page7:
+                self.page7.create_shortcuts()
+                self.setup_complete = True
             case _:
                 raise AttributeError("Trying to advance a non-canonical page")
         return index + 1
 
+    def is_setup_complete(self) -> bool:
+        return self.setup_complete
+
     def destroy_and_quit(self, widget: Self) -> None:
         self.destroy()
         Gtk.main_quit()
@@ -543,6 +577,90 @@ class Assistant(Gtk.Assistant):
             EMITTER.emit("step_pending")
 
 
+class CheckboxWithLabel(Gtk.Box):
+    def __init__(self, text: str, blurb_text: str) -> None:
+        super().__init__(orientation=Gtk.Orientation.VERTICAL, spacing=5)
+
+        self.button = Gtk.CheckButton(label=text)
+        self.button.set_active(True)
+        label = Gtk.Label(label="", halign=Gtk.Align.START, margin_start=20)
+        wrapped = textwrap.fill(blurb_text, width=100)
+        label.set_markup(f"- {wrapped}")
+
+        for el in self.button, label:
+            self.add(el)
+
+    def get_checkbox(self) -> Gtk.CheckButton:
+        return self.button
+
+    def get_active(self) -> bool:
+        return self.button.get_active()
+
+    def set_active(self, state: bool) -> None:
+        self.button.set_active(state)
+
+
+class ShortcutCreationPage(ScrolledWizardPage):
+    def __init__(self, shortcut: Path) -> None:
+        super().__init__(
+            enum=PageNum.SHORTCUTS,
+            heading=wizard.heading_shortcuts,
+            description=wizard.blurb_shortcuts,
+        )
+
+        self.steam_path: Path
+        self.shortcut_path = shortcut
+        self.checks_area = Gtk.Box(
+            orientation=Gtk.Orientation.VERTICAL, spacing=10, margin_top=20
+        )
+        self.page_type = Gtk.AssistantPageType.INTRO
+
+        label, blurb = wizard.checkbox_steam_shortcut
+        self.steam_checkbox = CheckboxWithLabel(label, blurb)
+
+        label, blurb = wizard.checkbox_start_menu
+        self.start_menu_checkbox = CheckboxWithLabel(label, blurb)
+        cb = self.start_menu_checkbox.get_checkbox()
+        cb.connect("toggled", self._on_start_menu_toggled)
+
+        label, blurb = wizard.checkbox_desktop_shortcut
+        self.desktop_checkbox = CheckboxWithLabel(label, blurb)
+
+        for el in (
+            self.steam_checkbox,
+            self.start_menu_checkbox,
+            self.desktop_checkbox,
+        ):
+            self.checks_area.add(el)
+
+        self.add_start(self.checks_area)
+        self.show_all()
+        self.connect("map", self._on_map)
+
+    def _on_start_menu_toggled(self, button: Gtk.CheckButton) -> None:
+        state = button.get_active()
+        if not state:
+            self.desktop_checkbox.set_active(state)
+        self.desktop_checkbox.set_sensitive(state)
+
+    def _on_map(self, page: "ScrolledWizardPage") -> None:
+        EMITTER.emit("step_complete")
+
+    def set_steam_path(self, path: Path) -> None:
+        self.steam_path = path
+
+    def create_shortcuts(self) -> None:
+        # NOTE: best-effort, permissive even on failure (page is already marked as complete)
+        if self.steam_checkbox.get_active():
+            add_steam_shortcut(self.steam_path, self.shortcut_path)
+
+        if self.start_menu_checkbox.get_active():
+            desktop_file = freedesktop.write_desktop_file(self.shortcut_path)
+
+        if self.desktop_checkbox.get_active():
+            freedesktop.write_desktop_shortcut(desktop_file)
+
+
 class SteamPathPage(ScrolledWizardPage):
     def __init__(self) -> None:
         super().__init__(
@@ -599,17 +717,20 @@ class SteamPathPage(ScrolledWizardPage):
 
 
 class SetupWizard(Gtk.Application):
-    def __init__(self, is_deck: bool, config: Path) -> None:
+    def __init__(self, is_deck: bool, XDG: "Xdg") -> None:
         super().__init__()
         GLib.set_prgname(APP_NAME)
-        Window(is_deck, config)
+        self.win = Window(is_deck, XDG)
         Gtk.main()
 
+    def is_setup_complete(self) -> int:
+        return self.win.assistant.is_setup_complete()
+
 
 class Window(Gtk.Window):
-    def __init__(self, is_deck: bool, config: Path) -> None:
+    def __init__(self, is_deck: bool, XDG: "Xdg") -> None:
         super().__init__(title=APP_NAME, icon_name=APP_NAME)
-        Assistant(is_deck, config)
+        self.assistant = Assistant(is_deck, XDG)
 
 
 class Emitter(GObject.GObject):

dzgui/views/mixins/context_mixin.py

@@ -44,6 +44,8 @@ class ContextMixin(TreeView):
         self.context_menu.connect("key-press-event", self._on_key)
 
         for row in group.value:
+            if row is None:
+                return False
             item = self._process_dynamic_row(row)
             self.context_menu.append(item)
 

dzgui/views/pages/changelog.py

@@ -1,4 +1,5 @@
 import logging
+import re
 
 from typing import TYPE_CHECKING
 from importlib import resources
@@ -32,15 +33,63 @@ class Changelog(HelpMenuMixin, ScrollableMixin, Gtk.ScrolledWindow):  # type: ig
 
         # TODO: should long text be wrapped?
         self.controller = controller
-        formatted = format_pango(changelog)
-        self.changelog_label = Gtk.Label(valign=Gtk.Align.START, margin=15)
-        self.changelog_label.set_markup(formatted)
-        self.box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
-        self.box.add(self.changelog_label)
+        self.box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=5, margin_top=10)
         self.add(self.box)
 
         self.connect("key-press-event", self._on_keypress)
         self.connect("key-press-event", self._on_esc_keypress)
 
+        changes = self._parse(changelog)
+        self._generate_nodes(changes)
+        self.show_all()
+
     def grab_content_area(self) -> None:
         self.grab_focus()
+
+    def _parse_version(self, version: str) -> tuple[str, str]:
+        pattern = r"(^##\s\[)(.+)(\] )(.+$)"
+        match = re.match(pattern, version)
+        if match:
+            version = match.group(2)
+            date = match.group(4)
+            return version, date
+        raise ValueError("Changelog parse error")
+
+
+    def _generate_nodes(self, releases: list[tuple[str, list[str]]]) -> None:
+        for header, changes in releases:
+            for ind in (0, -1):
+                if changes[ind] == "":
+                    del changes[ind]
+            text = "\n".join(changes)
+            formatted = format_pango(text)
+
+            label = Gtk.Label(valign=Gtk.Align.START, margin=15, halign=Gtk.Align.START)
+            label.set_markup(formatted)
+
+            version, date = self._parse_version(header)
+            button_text = f"{version} ({date})"
+            button = Gtk.Button(label=button_text, margin_start=5)
+
+            expander = Gtk.Expander()
+            expander.set_label_widget(button)
+            expander.add(label)
+            self.box.add(expander)
+
+
+    def _parse(self, changelog: str) -> list[tuple[str, list[str]]]:
+        release = ""
+        releases: list[tuple[str, list[str]]] = []
+        release_notes: list[str] = []
+        for line in changelog.splitlines():
+            if line.startswith("# "):
+                continue
+            if line.startswith("## "):
+                if release != "":
+                    releases.append((release, release_notes))
+                    release_notes = []
+                    release = ""
+                release = line
+                continue
+            release_notes.append(line.rstrip())
+        return releases

dzgui/views/pages/mods.py

@@ -1,4 +1,10 @@
+from pathlib import Path
+
 from typing import Self, TYPE_CHECKING
+from dzgui.api.steam import find_user_id
+from dzgui.const.enum import NotebookPage, Preferences
+from dzgui.views.components.box import HBox
+from dzgui.views.components.buttons import SteamWorkshopButton
 from dzgui.views.components.scrollable import NoOverlayScrolledWindow
 from dzgui.views.trees.tree_mods import ModTreeView
 
@@ -11,26 +17,69 @@ if TYPE_CHECKING:
     from dzgui.controllers.mc import Controller
 
 
-
-class Mods(NoOverlayScrolledWindow):
+class Mods(Gtk.Box):
     def __init__(self, controller: "Controller") -> None:
-        super().__init__()
+        super().__init__(orientation=Gtk.Orientation.VERTICAL)
 
-        self.controller = controller
-        self.emitter = controller.get_emitter()
+        self.box = NoOverlayScrolledWindow()
         self.tree = ModTreeView(controller)
+        self.tree.set_vexpand(True)
+        self.box.add(self.tree)
 
-        self.add(self.tree)
+        self.statusbar_cache = ""
+        self.controller = controller
         self.controller.register_widget("modtreeview", self.tree)
+        self.emitter = controller.get_emitter()
+
+        # TODO: move
+        default_steam_path = self.controller.query_config(Preferences.DEFAULT)
+        steam_path = Path(default_steam_path)
+        uid = find_user_id(steam_path)
+
+        pretty_uid = "" if uid is None else uid
+        hbox = HBox(spacing=10)
+        workshop_button = SteamWorkshopButton()
+        workshop_button.connect(
+            "clicked", lambda _: self.controller.open_user_workshop(pretty_uid)
+        )
+        self.offline_button = Gtk.Button(
+            label="Play offline",
+            halign=Gtk.Align.START,
+            margin_top=10,
+            margin_bottom=10,
+        )
+        self.offline_button.connect("clicked", self._on_offline_clicked)
+
+        hbox.add(workshop_button)
+        hbox.add(self.offline_button)
+
+        self.add(hbox)
+        self.add(self.box)
 
         self.connect("map", self._on_map)
         self.connect("unmap", self._on_unmap)
 
+    def _on_offline_clicked(self, button: Gtk.Button) -> None:
+        self.statusbar_cache = self.controller.get_statusbar().get_cache()
+        self.controller.open_offline()
+
     def _on_unmap(self, widget: Self) -> None:
-        self.emitter.emit("mod_page_toggled", False)
+        self.emitter.emit("mod_page_toggled", False, 0)
 
     def _on_map(self, widget: Self) -> None:
-        self.emitter.emit("mod_page_toggled", True)
+        model = self.tree.get_model()
+        if model is None:
+            mods = 0
+        else:
+            mods = len(model)
+        self.emitter.emit("mod_page_toggled", True, mods)
+        # TODO: delegation
+        # NOTE: handles going back from offline mods page
+        # more generic cache restoration method
+        if len(self.statusbar_cache) > 0:
+            self.controller.get_statusbar().set_by_context(
+                NotebookPage.MODS, self.statusbar_cache
+            )
 
     def grab_content_area(self) -> None:
         self.tree.grab_focus()

dzgui/views/pages/offline.py

@@ -0,0 +1,513 @@
+from __future__ import annotations
+from enum import Enum
+from typing import Self, TYPE_CHECKING, Union
+
+from dzgui.util import css
+from dzgui.const.constants import (
+    APPID_DAYZ,
+    APPID_DAYZ_EXP,
+    APPNAME_DAYZ,
+    APPNAME_DAYZ_EXP_HUMAN,
+    EDIT_DELETE,
+    ERROR,
+    FOLDER,
+    WARNING,
+)
+from dzgui.const.enum import ContextMenuGroup, NotebookPage
+from dzgui.managers.offline import OfflineManager
+from dzgui.strings import generic, offline
+from dzgui.views.components.box import HBox, VBox
+from dzgui.views.components.buttons import Icon, IconTextButton
+from dzgui.views.components.eventbox import InfoEventBox
+from dzgui.views.components.frame import HeadingFrame
+from dzgui.views.components.scrollable import NoOverlayScrolledWindow
+from dzgui.views.trees.tree_mods import OfflineModTreeView
+
+
+import gi
+
+gi.require_version("Gtk", "3.0")
+from gi.repository import Gtk, Gdk, GObject  # noqa
+
+if TYPE_CHECKING:
+    from dzgui.controllers.mc import Controller
+    from dzgui.controllers.emitter import Emitter
+    from dzgui.model.model_factory import FastInsertListStore
+
+
+class FolderError(Enum):
+    NO_VALID_MODS = 1
+    NO_VALID_MISSION = 2
+    FOLDER_CHANGED = 3
+
+
+class PageHeading(Gtk.Label):
+    def __init__(self, label: str) -> None:
+        super().__init__(label=label, halign=Gtk.Align.CENTER)
+
+        css.add_class(self, "page-heading")
+
+
+class ErrorPopover(Gtk.Popover):
+    def __init__(self) -> None:
+        super().__init__(position=Gtk.PositionType.RIGHT)
+
+        self.hbox = HBox()
+        self.label = Gtk.Label(label="", margin_start=10, margin_end=10)
+        error_icon = Icon(ERROR, margin_start=10)
+        self.hbox.extend([error_icon, self.label])
+        self.add(self.hbox)
+        self.show_all()
+        self.popdown()
+
+    def set_label(self, error: FolderError, msg: str) -> None:
+        match error:
+            case FolderError.NO_VALID_MODS:
+                prefix = offline.no_mods
+            case FolderError.NO_VALID_MISSION:
+                prefix = offline.no_mission
+            case FolderError.FOLDER_CHANGED:
+                prefix = offline.folder_changed
+                self.label.set_label(prefix)
+                return
+        self.label.set_label(f"{prefix}: '{msg}'")
+
+
+class FolderHBox(HBox):
+    def __init__(self, controller: "Controller", btn_label: str, eb_text: str) -> None:
+        super().__init__(spacing=10)
+
+        self.set_margin_start(5)
+        self.set_margin_end(10)
+        self.set_margin_bottom(5)
+
+        self.folder = ""
+        self.controller = controller
+        self.emitter = controller.get_emitter()
+
+        self.eb = InfoEventBox(eb_text, controller)
+        self.button = IconTextButton(FOLDER, btn_label, Gtk.PositionType.LEFT)
+        self.button.set_halign(Gtk.Align.START)
+        self.button.set_image_position(Gtk.PositionType.LEFT)
+
+        self.set_can_focus(True)
+
+        self.scrolled_label = Gtk.ScrolledWindow(
+            propagate_natural_width=True, halign=Gtk.Align.START
+        )
+        self.label = Gtk.Label()
+        self.scrolled_label.add(self.label)
+
+        self.unset_button = IconTextButton(EDIT_DELETE, offline.unset_button)
+        self.unset_button.connect("clicked", self._on_unset_clicked)
+
+        self.spinner = Gtk.Spinner()
+        self.extend(
+            [self.eb, self.button, self.spinner, self.scrolled_label, self.unset_button]
+        )
+
+        self.pop = ErrorPopover()
+        self.pop.set_relative_to(self.button)
+        self.pop.connect("unmap", lambda _: self.grab_focus())
+
+        self.sidepop = ErrorPopover()
+        self.sidepop.set_position(Gtk.PositionType.BOTTOM)
+        self.sidepop.set_relative_to(self.scrolled_label)
+        self.sidepop.connect("unmap", lambda _: self.grab_focus())
+
+        self.connect("map", self._on_map)
+        self.connect("unmap", self._on_unmap)
+
+    def start_spinner(self) -> None:
+        self.spinner.show()
+        self.spinner.start()
+
+    def stop_spinner(self) -> None:
+        self.spinner.hide()
+        self.spinner.stop()
+
+    def _on_unmap(self, widget: Self) -> None:
+        self.unset_button.hide()
+        self.label.set_label("")
+        self.scrolled_label.hide()
+
+    def _on_map(self, widget: Self) -> None:
+        self.spinner.hide()
+        self.scrolled_label.show()
+        self.unset_button.hide()
+
+    def _on_unset_clicked(self, button: Gtk.Button) -> None:
+        self.folder = ""
+        self.label.set_label("")
+        self.unset_button.hide()
+        # FIXME: rename signal
+        self.emitter.emit("custom_mods_unloaded", self)
+
+    def get_button(self) -> Gtk.Button:
+        return self.button
+
+    def hide_label(self) -> None:
+        self.label.hide()
+
+    def get_folder(self) -> str:
+        return self.folder
+
+    def set_folder(self, folder: str) -> None:
+        prefix = offline.folder_prefix
+        self.folder = folder
+        self.label.set_markup(prefix + folder)
+        self.label.show()
+        self.unset_button.show()
+
+    def present_error(self, error: FolderError, msg: str) -> None:
+        if error == FolderError.FOLDER_CHANGED:
+            self.sidepop.set_label(error, msg)
+            self.sidepop.popup()
+            return
+        self.folder = ""
+        self.label.set_text("")
+        self.unset_button.hide()
+        self.pop.set_label(error, msg)
+        self.pop.popup()
+
+
+class ModFrame(HeadingFrame):
+    def __init__(
+        self, parent: OfflineLoader, controller: "Controller", label: str
+    ) -> None:
+        super().__init__(heading=label)
+
+        self.parent = parent
+        self.vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
+
+        self.tree = OfflineModTreeView(controller)
+        self.tree.set_model(None)
+        self.tree.set_valign(Gtk.Align.FILL)
+
+        self.scrolled = NoOverlayScrolledWindow()
+        self.scrolled.set_margin_end(5)
+        self.scrolled.set_vexpand(True)
+        self.scrolled.add(self.tree)
+
+        self.status = Gtk.Label(
+            halign=Gtk.Align.START, margin_start=5, margin_top=3, margin_bottom=3
+        )
+
+        self.tree_vbox = VBox()
+        self.tree_vbox.extend([self.scrolled, self.status])
+
+        self.no_mods = HBox(spacing=10)
+        no_mods_icon = Icon(WARNING, margin_start=10)
+        no_mods_label = Gtk.Label(label=offline.no_local_mods, halign=Gtk.Align.START)
+        self.no_mods.extend([no_mods_icon, no_mods_label])
+
+        self.vbox.pack_end(self.no_mods, expand=True, fill=True, padding=3)
+        self.vbox.pack_end(self.tree_vbox, expand=True, fill=True, padding=3)
+        self.frame.add(self.vbox)
+
+        sel = self.tree.get_selection()
+        sel.connect("changed", self._on_selection_changed)
+
+        self.connect("map", self._on_map)
+        self.connect("unmap", self._on_unmap)
+
+    def start_empty(self) -> None:
+        self.tree_vbox.hide()
+        self.no_mods.show()
+
+    def _on_map(self, widget: Self) -> None:
+        self.no_mods.hide()
+        self.tree.set_model(None)
+        self.tree_vbox.hide()
+
+    def _on_unmap(self, widget: Self) -> None:
+        self.tree.set_model(None)
+        self.tree_vbox.hide()
+        self.no_mods.hide()
+
+    def start(self, store: "FastInsertListStore") -> None:
+        # TODO: this manipulates mod man store out of band
+        self.tree.set_model(store)
+        self.tree.mod_man.set_store(store)
+        self.show_tree()
+
+    def get_mods(self) -> list[str]:
+        model, treeiters = self.tree.get_selection().get_selected_rows()
+        if model is None:
+            return []
+        if type(self) is CustomModFrame:
+            # NOTE: custom mod dirs to be hashed
+            return [model[_iter][2] for _iter in treeiters]
+        else:
+            # NOTE: pre-existing, canonical symlinks to published mods
+            return [model[_iter][1] for _iter in treeiters]
+
+    def show_tree(self) -> None:
+        self.tree_vbox.show()
+
+    def collapse_tree(self) -> None:
+        self.tree_vbox.hide()
+
+    def get_tree(self) -> OfflineModTreeView:
+        return self.tree
+
+    def pack(self, widget: Gtk.Widget) -> None:
+        self.vbox.pack_start(widget, expand=False, fill=False, padding=5)
+
+    def set_model(self, model: Union["FastInsertListStore", None]) -> None:
+        self.tree.set_model(model)
+        self.tree.mod_man.store = model
+        self.set_cursor()
+
+    def _on_selection_changed(self, sel: Gtk.TreeSelection) -> None:
+        model, rows = sel.get_selected_rows()
+        if len(rows) == 0:
+            status = generic.selectable_tree
+        else:
+            status = f"Mods selected: {len(rows)}"
+        self.status.set_label(status)
+        # TODO: cleaner delegation
+        # simply send int value or use emitter
+        self.parent.check_button()
+
+    def set_cursor(self) -> None:
+        path = Gtk.TreePath.new_from_indices([0])
+        self.tree.set_cursor(path)
+        self.tree.get_selection().unselect_all()
+
+
+class CustomModFrame(ModFrame):
+    def __init__(
+        self, parent: OfflineLoader, controller: "Controller", heading: str
+    ) -> None:
+        super().__init__(parent, controller, heading)
+
+        self.tree.set_menu(ContextMenuGroup.MOD_OFFLINE)
+        self.parent = parent
+
+        self.controller = controller
+        self.emitter = controller.get_emitter()
+
+        self.custom_hbox = FolderHBox(
+            controller, offline.custom_button, offline.custom_eventbox
+        )
+        self.custom_hbox.get_button().connect("clicked", self._on_custom_button_clicked)
+
+        self.pack(self.custom_hbox)
+
+        self.emitter.connect("custom_mods_loaded", self._on_custom_mods_loaded)
+        self.emitter.connect("custom_mods_unloaded", self._on_custom_mods_unloaded)
+
+        self.connect("map", self._on_map)
+
+    def _on_map(self, widget: Self) -> None:
+        self.hide_tree()
+
+    def _on_custom_mods_unloaded(self, emitter: "Emitter", widget: FolderHBox) -> None:
+        # TODO: kludgy workaround for generic button emitting global signal
+        if widget == self.custom_hbox:
+            self.hide_tree()
+
+    def hide_tree(self) -> None:
+        self.custom_hbox.hide_label()
+        self.tree.set_model(None)
+        self.tree_vbox.hide()
+        self.no_mods.hide()
+
+    def present_folder_changed(self, folder: str) -> None:
+        self.custom_hbox.present_error(FolderError.FOLDER_CHANGED, folder)
+
+    def present_error(self, folder: str) -> None:
+        self.hide_tree()
+        self.custom_hbox.present_error(FolderError.NO_VALID_MODS, folder)
+
+    def present_tree(self, store: "FastInsertListStore", folder: str) -> None:
+        self.custom_hbox.set_folder(folder)
+        self.tree.set_model(store)
+        self.tree_vbox.show()
+
+    def _on_custom_mods_loaded(
+        self,
+        emitter: "Emitter",
+        store: "FastInsertListStore",
+        folder: str,
+    ) -> None:
+        self.custom_hbox.stop_spinner()
+        if len(store) == 0:
+            self.present_error(folder)
+        else:
+            self.present_tree(store, folder)
+
+    def _on_custom_button_clicked(self, button: Gtk.Button) -> None:
+        callback = self.custom_hbox.start_spinner
+        # TODO: cleaner delegation
+        self.parent.offline_man.find_custom_mods(callback)
+
+    def get_folder(self) -> str:
+        return self.custom_hbox.get_folder()
+
+
+class MissionFrame(HeadingFrame):
+    def __init__(self, parent: OfflineLoader, controller: "Controller") -> None:
+        super().__init__(heading=offline.mission_frame)
+
+        self.parent = parent
+        self.controller = controller
+        self.emitter = controller.get_emitter()
+
+        self.mission_hbox = FolderHBox(
+            controller, offline.mission_button, offline.mission_eventbox
+        )
+        self.mission_button = self.mission_hbox.get_button()
+        self.mission_button.connect("clicked", self._on_mission_button_clicked)
+
+        self.frame.add(self.mission_hbox)
+
+        self.emitter.connect("custom_mission_loaded", self._on_mission_loaded)
+
+    def _on_mission_loaded(
+        self, emitter: "Emitter", folder: str, is_valid: bool
+    ) -> None:
+        if is_valid:
+            self.mission_hbox.set_folder(folder)
+        else:
+            self.mission_hbox.present_error(FolderError.NO_VALID_MISSION, folder)
+        self.parent.check_button()
+
+    def _on_mission_button_clicked(self, button: Gtk.Button) -> None:
+        self.parent.offline_man.get_mission()
+
+    def get_mission(self) -> str:
+        return self.mission_hbox.get_folder()
+
+    def present_folder_changed(self, folder: str) -> None:
+        self.mission_hbox.present_error(FolderError.FOLDER_CHANGED, folder)
+
+
+class RadioFrame(HeadingFrame):
+    def __init__(self, parent: OfflineLoader, controller: "Controller") -> None:
+        super().__init__(heading=offline.version)
+
+        self.controller = controller
+
+        self.id_map = {APPNAME_DAYZ: APPID_DAYZ, APPNAME_DAYZ_EXP_HUMAN: APPID_DAYZ_EXP}
+        self.appid = APPID_DAYZ
+
+        self.dayz = Gtk.RadioButton.new_with_label(None, APPNAME_DAYZ)
+        self.dayz_exp = Gtk.RadioButton.new_with_label_from_widget(
+            self.dayz, APPNAME_DAYZ_EXP_HUMAN
+        )
+
+        self.radio_box = HBox()
+        self.radio_box.extend([self.dayz, self.dayz_exp])
+        self.radio_box.set_margin_start(10)
+        self.radio_box.set_margin_bottom(5)
+
+        self.frame.add(self.radio_box)
+
+        # TODO: cleaner delegation
+        has_dayz_exp = parent.offline_man.has_dayz_exp()
+        self.dayz.connect("toggled", self._on_radio_toggled)
+        if has_dayz_exp is False:
+            self.dayz_exp.set_sensitive(False)
+
+    def _on_radio_toggled(self, radio: Gtk.RadioButton) -> None:
+        for el in self.dayz, self.dayz_exp:
+            if el.get_active():
+                label = el.get_label()
+                self.appid = self.id_map[label]
+
+    def get_appid(self) -> int:
+        return self.appid
+
+
+class OfflineLoader(Gtk.Box):
+    def __init__(self, controller: "Controller"):
+        super().__init__(
+            orientation=Gtk.Orientation.VERTICAL,
+            margin_start=10,
+            margin_end=10,
+        )
+
+        self.controller = controller
+        self.controller.register_widget("offline_loader", self)
+        self.emitter = controller.get_emitter()
+        self.offline_man = OfflineManager(controller)
+
+        self.add(PageHeading(offline.heading))
+
+        self.local_frame = ModFrame(self, controller, offline.local_frame)
+        self.custom_frame = CustomModFrame(self, controller, offline.custom_frame)
+
+        self.custom_tree = OfflineModTreeView(controller)
+        self.mission_frame = MissionFrame(self, controller)
+        self.radio_frame = RadioFrame(self, controller)
+
+        self.scrollable = Gtk.ScrolledWindow(
+            vexpand=True, propagate_natural_height=True
+        )
+
+        self.content_box = VBox(spacing=5)
+        self.content_box.extend(
+            [
+                self.local_frame,
+                self.custom_frame,
+                self.mission_frame,
+                self.radio_frame,
+            ]
+        )
+
+        # TODO: share ConnectBox class with preconnect dialog?
+        self.button_box = HBox(spacing=5)
+        self.button_box.set_halign(Gtk.Align.END)
+        self.button_box.set_margin_top(15)
+        self.back = Gtk.Button(label="Back")
+        self.ok = Gtk.Button(label="Launch", sensitive=False)
+        self.back.connect("clicked", self._on_back_clicked)
+        self.ok.connect("clicked", self._on_ok_clicked)
+        self.connect("key-press-event", self._on_keypress)
+        self.emitter.connect("custom_mods_unloaded", lambda _, __: self.check_button())
+
+        self.button_box.extend([self.back, self.ok])
+
+        self.scrollable.add(self.content_box)
+        self.add(self.scrollable)
+        self.add(self.button_box)
+
+    def check_button(self) -> None:
+        local_mods = self.local_frame.get_mods()
+        custom_mods = self.custom_frame.get_mods()
+        mission = self.mission_frame.get_mission()
+        if len(local_mods) == 0 and len(custom_mods) == 0 and len(mission) == 0:
+            self.ok.set_sensitive(False)
+        else:
+            self.ok.set_sensitive(True)
+
+    def _on_keypress(self, widget: Self, event: Gdk.EventKey) -> None:
+        if event.keyval == Gdk.KEY_Escape:
+            self.back.emit("clicked")
+
+    def populate(self, store: Union["FastInsertListStore", None]) -> None:
+        if store is None:
+            self.local_frame.start_empty()
+            return
+        self.local_frame.start(store)
+
+    def _on_back_clicked(self, button: Gtk.Button) -> None:
+        self.controller.open_page(NotebookPage.MODS)
+
+    def _on_ok_clicked(self, button: Gtk.Button) -> None:
+        appid = self.radio_frame.get_appid()
+        mission = self.mission_frame.get_mission()
+        local_mods = self.local_frame.get_mods()
+        custom_folder = self.custom_frame.get_folder()
+        custom_mods = self.custom_frame.get_mods()
+
+        if custom_folder and not self.offline_man.is_custom_folder_valid(custom_folder):
+            self.custom_frame.present_folder_changed(mission)
+            return
+
+        if mission and not self.offline_man.is_mission_valid(mission):
+            self.mission_frame.present_folder_changed(mission)
+            return
+        self.offline_man.launch(appid, mission, local_mods, custom_folder, custom_mods)

dzgui/views/pages/options.py

@@ -2,7 +2,7 @@ from pathlib import Path
 from typing import TYPE_CHECKING
 
 from dzgui.api import pefile as PeFile
-from dzgui.api.steam import find_user_id
+
 from dzgui.config import query
 from dzgui.const.constants import (
     APPID_DAYZ,
@@ -19,9 +19,8 @@ from dzgui.const.endpoints import STEAM_API_SETUP, BM_API_SETUP
 from dzgui.const.enum import Preferences, ServerTab
 from dzgui.strings import errors, options
 from dzgui.util import strings, css, open_links
-from dzgui.views.components.buttons import SteamWorkshopButton
+
 from dzgui.views.components.labels import LeftLabel
-from dzgui.views.components.eventbox import InfoEventBox
 from dzgui.views.components.buttons import WebButton
 from dzgui.views.components.frame import HeadingFrame
 from dzgui.views.components.misc import ClientCombo
@@ -134,16 +133,6 @@ class Options(Gtk.Box):
             [LeftLabel(strings.options.name), self.player_box],
         ]
 
-        eb = InfoEventBox(options.workshop_eventbox, controller)
-
-        workshop_button = SteamWorkshopButton()
-        workshop_button.connect(
-            "clicked", lambda _: self.controller.open_user_workshop(self.uid)
-        )
-        mod_rows = [
-            [LeftLabel(options.workshop_label), workshop_button, eb],
-        ]
-
         self.dayz_version_label = Gtk.Label(label=strings.null)
         self.dayz_exp_version_label = Gtk.Label(label=strings.null)
 
@@ -169,7 +158,6 @@ class Options(Gtk.Box):
         api_box.add(api_links_box)
 
         prefs_grid = self._make_grid(pref_rows)
-        mods_grid = self._make_grid(mod_rows)
         version_grid = self._make_grid(version_rows)
 
         col = 1
@@ -187,12 +175,13 @@ class Options(Gtk.Box):
         if prefs.is_debug:
             grid.attach(developers, 1, 0, self.DEFAULT_WIDTH, self.DEFAULT_HEIGHT)
 
-        for frame in [
-            HeadingFrame(api_box, strings.options.api_keys),
-            HeadingFrame(prefs_grid, strings.options.prefs),
-            HeadingFrame(mods_grid, strings.options.mods),
-            HeadingFrame(version_grid, strings.options.version),
+        for pair in [
+            (api_box, strings.options.api_keys),
+            (prefs_grid, strings.options.prefs),
+            (version_grid, strings.options.version),
         ]:
+
+            frame = HeadingFrame.new_with_widget_and_label(*pair)
             grid.attach(frame, col, row, self.DEFAULT_WIDTH, self.DEFAULT_HEIGHT)
             row += 1
 
@@ -299,6 +288,7 @@ class Options(Gtk.Box):
 
     def _on_api_change_failed(self, emitter: "Emitter") -> None:
         self.old_entry.set_text(self.old_text)
+        # TODO: use popover
         dialog = ExceptionDialog(self.controller, errors.api_validation_error)
         dialog.run()
 
@@ -403,7 +393,7 @@ class Options(Gtk.Box):
         if prefs.paths.config.is_file() is False:
             dialog = ExceptionDialog(self.controller, strings.config_not_found)
             dialog.run()
-            raise Exception
+            raise OSError(f"Config file '{prefs.paths.config}' not found")
 
         config = query.get_config(prefs.paths.config)
 
@@ -414,9 +404,6 @@ class Options(Gtk.Box):
         bm = self.controller.query_config(Preferences.BM)
 
         steam_path = Path(default_steam_path)
-        # NOTE: this is a best effort guess at the most recent user
-        uid = find_user_id(steam_path)
-        self.uid = "" if uid is None else uid
 
         self.old_steam = steam
         self.old_bm = bm

dzgui/views/pages/preconnect.py

@@ -23,6 +23,7 @@ from gi.repository import Gdk, Gtk  # noqa E402
 if TYPE_CHECKING:
     from dzgui.managers.connection import Prerequisites
     from dzgui.controllers.mc import Controller
+    from dzgui.controllers.emitter import Emitter
 
 
 @dataclass
@@ -112,18 +113,6 @@ class PreConnectionAssistant(Gtk.Box):
             tooltip_text=preconnect.connect_last_tooltip,
         )
 
-        # TODO: abstract
-        self.raise_window = Gtk.CheckButton(
-            label="Foreground DZGUI while downloading",
-            halign=Gtk.Align.END,
-            hexpand=True,
-            valign=Gtk.Align.END,
-            visible=False,
-            has_tooltip=True,
-            sensitive=False,
-            tooltip_text="Foreground the DZGUI window after mod downloads are queued",
-            active=True,
-        )
         self.button_box = Gtk.Box(
             orientation=Gtk.Orientation.VERTICAL,
             valign=Gtk.Align.END,
@@ -133,8 +122,7 @@ class PreConnectionAssistant(Gtk.Box):
         box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=5)
         for button in self.back, self.ok, self.connect_last:
             box.add(button)
-        for el in self.raise_window, box:
-            self.button_box.add(el)
+        self.button_box.add(box)
 
         self.back.connect("clicked", self._on_back_clicked)
         self.ok.connect("clicked", self._on_ok_clicked)
@@ -154,7 +142,7 @@ class PreConnectionAssistant(Gtk.Box):
         self.progress_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL, spacing=15)
         self.progress_box.add(self.mod_count)
 
-        self.scrolled = Gtk.ScrolledWindow()
+        self.scrolled = Gtk.ScrolledWindow(margin_end=10)
         self.scrolled.add(self.tree)
         self.scrolled.set_size_request(600, 400)
 
@@ -166,7 +154,9 @@ class PreConnectionAssistant(Gtk.Box):
         self.mods_placeholder = Placeholder("This server has no mods.")
         self.tree_box.add(self.mods_placeholder)
 
-        self.tree_frame = HeadingFrame(self.tree_box, preconnect.mods)
+        self.tree_frame = HeadingFrame.new_with_widget_and_label(
+            self.tree_box, preconnect.mods
+        )
 
         # TODO: abstract into components
         self.warning_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
@@ -175,7 +165,9 @@ class PreConnectionAssistant(Gtk.Box):
         self.warning_placeholder = Placeholder("No warnings.")
         self.warning_box.add(self.warning_tree)
         self.warning_box.add(self.warning_placeholder)
-        self.warning_frame = HeadingFrame(self.warning_box, preconnect.warnings)
+        self.warning_frame = HeadingFrame.new_with_widget_and_label(
+            self.warning_box, preconnect.warnings
+        )
 
         self.error_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
         self.error_tree = MaskedTree(ERROR)
@@ -183,7 +175,9 @@ class PreConnectionAssistant(Gtk.Box):
         self.error_placeholder = Placeholder("No errors.")
         self.error_box.add(self.error_tree)
         self.error_box.add(self.error_placeholder)
-        self.error_frame = HeadingFrame(self.error_box, preconnect.errors)
+        self.error_frame = HeadingFrame.new_with_widget_and_label(
+            self.error_box, preconnect.errors
+        )
 
         self.box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=10)
         self.box.add(self.title)
@@ -198,9 +192,14 @@ class PreConnectionAssistant(Gtk.Box):
         self.add(self.scrolled_box)
         self.add(self.button_box)
 
+        emitter = self.controller.get_emitter()
+        emitter.connect("all_mods_synched", self._on_mods_synched)
         self.connect("key-press-event", self._on_keypress)
         self.connect("map", self._on_map)
 
+    def _on_mods_synched(self, emitter: "Emitter") -> None:
+        self.tree.mark_mods_synched()
+
     def _on_map(self, widget: Self) -> None:
         widgets = (
             self.tree_frame,
@@ -211,8 +210,6 @@ class PreConnectionAssistant(Gtk.Box):
         for child in widgets:
             child.set_visible(True)
 
-        self.raise_window.set_visible(False)
-        self.raise_window.set_sensitive(False)
         self.ok.set_sensitive(True)
         self.ok.set_label(preconnect.update_mods)
 
@@ -224,10 +221,10 @@ class PreConnectionAssistant(Gtk.Box):
                 self.ok.emit("clicked")
 
     def _on_connect_last_clicked(self, button: Gtk.Button) -> None:
-        self.controller.update_and_load_to_menu(self.raise_window.get_active())
+        self.controller.update_and_load_to_menu()
 
     def _on_ok_clicked(self, button: Gtk.Button) -> None:
-        self.controller.update_and_connect(self.raise_window.get_active())
+        self.controller.update_and_connect()
 
     def _on_back_clicked(self, button: Gtk.Button) -> None:
         self.controller.open_page(NotebookPage.SERVERS)
@@ -275,6 +272,15 @@ class PreConnectionAssistant(Gtk.Box):
                 "It looks like DayZ is already running in the background. Exit DayZ before connecting."
             )
 
+        allows_dl, running_app = prereqs.allows_downloads
+        if len(prereqs.mods) > 0 and allows_dl is False:
+            msg = (
+                f"The game '{running_app}' is currently running in Steam, but background downloads are not enabled.\n"
+                "Either stop the game first, or update your global Steam settings or the game's local settings.\n"
+                "Otherwise, mods may be queued for download but never update."
+                )
+            warnings.append(msg)
+
         self.add_warnings(warnings)
         self.add_errors(errors)
 
@@ -306,20 +312,16 @@ class PreConnectionAssistant(Gtk.Box):
             self._hide_mod_area()
         else:
             self._show_mod_area()
-            msg = "All mods are up to date."
+            msg = preconnect.up_to_date
             self.mod_count.set_text(msg)
 
-        if prereqs.required_space == 0:
-            self.ok.set_label(preconnect.connect)
-            self.raise_window.set_visible(False)
-        else:
-            self.raise_window.set_visible(True)
-            self.raise_window.set_sensitive(True)
-
+        if prereqs.required_space != 0:
             pretty = number(prereqs.required_space)
             suffix = f" Need to download {pretty} MiB of mod updates."
             prefix = preconnect.total_mods
             self.mod_count.set_text(f"{prefix}{str(total_mods)}.{suffix}")
+        else:
+            self.ok.set_label(preconnect.connect)
 
         if prereqs.is_last_server:
             self.connect_last.show()

dzgui/views/pages/servers.py

@@ -16,7 +16,7 @@ logger = logging.getLogger(APP_NAME)
 
 if TYPE_CHECKING:
     from dzgui.controllers.mc import Controller
-    from dzgui.controllers.mc import Emitter
+    from dzgui.controllers.emitter import Emitter
 
 
 class ScrollableTree(Gtk.ScrolledWindow):

dzgui/views/trees/tree_mods.py

@@ -3,6 +3,7 @@ from typing import Any, TYPE_CHECKING
 
 from dzgui.const.constants import APP_NAME, HEX_RED
 from dzgui.const.enum import ContextMenuGroup
+from dzgui.managers.mods import ModManager
 from dzgui.util import strings, localize
 from dzgui.views.mixins.context_mixin import ContextMixin
 from dzgui.views.mixins.mods_mixin import ModsMixin
@@ -22,9 +23,14 @@ logger = logging.getLogger(APP_NAME)
 
 
 class ModTreeView(ModsMixin, ContextMixin, TreeView):  # type: ignore
-    def __init__(self, controller: "Controller") -> None:
-        super().__init__(controller, menu=ContextMenuGroup.MOD)
+    def __init__(
+        self, controller: "Controller", menu: ContextMenuGroup = ContextMenuGroup.MOD
+    ) -> None:
+        super().__init__(controller, menu=menu)
+
         self.controller = controller
+        self.mod_man = ModManager(self, controller)
+
         emitter = self.controller.get_emitter()
         emitter.connect("mods_updated", self._on_mods_updated)
         emitter.connect("mods_highlighted", self._on_mods_highlighted)
@@ -56,6 +62,33 @@ class ModTreeView(ModsMixin, ContextMixin, TreeView):  # type: ignore
         self.connect("button-press-event", self.present_menu)
         self.connect("key-press-event", self.present_menu)
 
+        self.connect("button-press-event", self.on_row_click)
+
+    def on_row_click(self, widget: Gtk.TreeView, event: Gdk.EventButton) -> bool:
+        if event.state is Gdk.ModifierType.CONTROL_MASK and event.button == 1:
+            path_info = widget.get_path_at_pos(int(event.x), int(event.y))
+            if path_info is None:
+                return False
+            path, column, cellx, celly = path_info
+            model = self.get_model()
+            if model is None:
+                return False
+            if path is None:
+                return False
+            _iter = model.get_iter(path)
+            if self.get_selection().iter_is_selected(_iter):
+                self.get_selection().unselect_iter(_iter)
+            else:
+                self.get_selection().select_iter(_iter)
+            return True
+        return False
+
+    def get_mod_man(self) -> ModManager:
+        return self.mod_man
+
+    def load_mods(self) -> None:
+        self.mod_man.load_mods()
+
     def _on_mods_highlighted(self, emitter: "Emitter") -> None:
         self.get_selection().unselect_all()
 
@@ -105,3 +138,13 @@ class ModTreeView(ModsMixin, ContextMixin, TreeView):  # type: ignore
         val = model[it][3]
         formatted = localize.number(val)
         cell.set_property("text", formatted)
+        # NOTE: reapply color property after float conversion
+        self._format_color(column, cell, model, it, data)
+
+    def set_menu(self, context: ContextMenuGroup) -> None:
+        self.menu = context
+
+
+class OfflineModTreeView(ModTreeView):
+    def __init__(self, controller: "Controller") -> None:
+        super().__init__(controller)

dzgui/views/trees/tree_server_mods.py

@@ -48,6 +48,10 @@ class ServerModTreeView(ContextMixin, TreeView):  # type: ignore
                 case _:
                     pass
 
+    def mark_mods_synched(self) -> None:
+        for row in self.mod_store:
+            row[2] = server_mods.checkmark
+
     # TODO: could be problematic if user downloads mods out of band
     def _on_row_activated(
         self,

pyproject.toml

@@ -4,7 +4,7 @@ description = "DayZ server browser and mod manager for Linux"
 authors = [
     {name = "aclist"}
 ]
-version = "7.0.0b11"
+version = "7.0.0b19"
 license = "GPL-3.0-or-later"
 license-files = ["LICENSE"]
 readme = "README.md"
@@ -27,6 +27,7 @@ dependencies = [
     "psutil==7.1.3",
     "python-a2s",
     "requests==2.32.5",
+    "vdf==3.4"
 ]
 
 [project.scripts]
@@ -75,7 +76,7 @@ build-backend = "setuptools.build_meta"
 line-length = 88
 indent-width = 4
 extend-exclude = ["*lib/a2s"]
-lint.unfixable = ["F401"]
+lint.unfixable = ["F401", "I001"]
 
 [tool.ruff.format]
 quote-style = "double"
@@ -107,8 +108,10 @@ config-settings-package = { pygobject-stubs = { config = "Gtk3,Gdk3,Soup2" } }
 [tool.pytest.ini_options]
 markers = [
     "config: config file keys/values",
+    "mods: tests mod metadata/link creation",
     "pefile: validate PE files",
     "post_install: requires a completed installation",
+    "redact: log redaction mechanisms",
     "slow: long-running tests",
     "webtest: checks remote endpoints"
 ]

scripts/concat_licenses.py

@@ -12,6 +12,7 @@ This file includes the combined licenses to the following components:
     - psutil
     - PyGObject
     - python-a2s
+    - vdf
 
 When shipped as a binary installer, these components are collectively bundled
 as a turnkey application and used to run the DZGUI utility.\n\n

tests/fixtures/api/client_allows_downloads.vdf

@@ -0,0 +1,13 @@
+"InstallConfigStore"
+{
+	"Software"
+	{
+		"Valve"
+		{
+			"Steam"
+			{
+				"AllowDownloadsDuringGameplay"		"1"
+			}
+		}
+	}
+}

tests/fixtures/api/client_disallows_downloads.vdf

@@ -0,0 +1,13 @@
+"InstallConfigStore"
+{
+	"Software"
+	{
+		"Valve"
+		{
+			"Steam"
+			{
+				"AllowDownloadsDuringGameplay"		"0"
+			}
+		}
+	}
+}

tests/fixtures/api/loginusers_beta_client.vdf

@@ -0,0 +1,13 @@
+"users"
+{
+	"0"
+	{
+		"AccountName"		"STEAMUSER"
+		"PersonaName"		"STEAMUSER"
+		"RememberPassword"		"0"
+		"WantsOfflineMode"		"0"
+		"SkipOfflineModeWarning"		"0"
+		"AutoLogin"		"1"
+		"Timestamp"		"0"
+	}
+}

tests/fixtures/api/loginusers_legacy_client.vdf

@@ -0,0 +1,14 @@
+"users"
+{
+	"0"
+	{
+		"AccountName"		"STEAMUSER"
+		"PersonaName"		"STEAMUSER"
+		"RememberPassword"		"0"
+		"WantsOfflineMode"		"0"
+		"SkipOfflineModeWarning"		"0"
+		"AllowAutoLogin"		"1"
+		"MostRecent"		"1"
+		"Timestamp"		"0"
+	}
+}

tests/fixtures/api/loginusers_legacy_client_multiple.vdf

@@ -0,0 +1,25 @@
+"users"
+{
+	"0"
+	{
+		"AccountName"		"STEAMUSER"
+		"PersonaName"		"STEAMUSER"
+		"RememberPassword"		"0"
+		"WantsOfflineMode"		"0"
+		"SkipOfflineModeWarning"		"0"
+		"AllowAutoLogin"		"1"
+		"MostRecent"		"0"
+		"Timestamp"		"0"
+	}
+	"1"
+	{
+		"AccountName"		"STEAMUSER2"
+		"PersonaName"		"STEAMUSER2"
+		"RememberPassword"		"0"
+		"WantsOfflineMode"		"0"
+		"SkipOfflineModeWarning"		"0"
+		"AllowAutoLogin"		"1"
+		"MostRecent"		"1"
+		"Timestamp"		"0"
+	}
+}

tests/fixtures/api/steamapps/appmanifest_111.acf

@@ -0,0 +1,53 @@
+"AppState"
+{
+	"appid"		"111"
+	"Universe"		"1"
+	"name"		"TEST APP"
+	"StateFlags"		"4"
+	"installdir"		"TESTAPP"
+	"LastUpdated"		"0"
+	"LastPlayed"		"0"
+	"SizeOnDisk"		"0"
+	"StagingSize"		"0"
+	"buildid"		"0"
+	"LastOwner"		"0"
+	"DownloadType"		"2"
+	"UpdateResult"		"0"
+	"BytesToDownload"		"0"
+	"BytesDownloaded"		"0"
+	"BytesToStage"		"0"
+	"BytesStaged"		"0"
+	"TargetBuildID"		"0"
+	"AutoUpdateBehavior"		"0"
+	"AllowOtherDownloadsWhileRunning"		"1"
+	"ScheduledAutoUpdate"		"0"
+	"FullValidateAfterNextUpdate"		"1"
+	"InstalledDepots"
+	{
+		"1110"
+		{
+			"manifest"		"0"
+			"size"		"0"
+		}
+	}
+	"SharedDepots"
+	{
+		"228983"		"228980"
+		"228985"		"228980"
+		"228988"		"228980"
+		"228990"		"228980"
+		"229004"		"228980"
+	}
+	"UserConfig"
+	{
+		"language"		"english"
+		"platform_override_dest"		"linux"
+		"platform_override_source"		"windows"
+	}
+	"MountedConfig"
+	{
+		"language"		"english"
+		"platform_override_dest"		"linux"
+		"platform_override_source"		"windows"
+	}
+}

tests/fixtures/api/steamapps/appmanifest_222.acf

@@ -0,0 +1,53 @@
+"AppState"
+{
+	"appid"		"222"
+	"Universe"		"1"
+	"name"		"TEST APP"
+	"StateFlags"		"4"
+	"installdir"		"TESTAPP"
+	"LastUpdated"		"0"
+	"LastPlayed"		"0"
+	"SizeOnDisk"		"0"
+	"StagingSize"		"0"
+	"buildid"		"0"
+	"LastOwner"		"0"
+	"DownloadType"		"2"
+	"UpdateResult"		"0"
+	"BytesToDownload"		"0"
+	"BytesDownloaded"		"0"
+	"BytesToStage"		"0"
+	"BytesStaged"		"0"
+	"TargetBuildID"		"0"
+	"AutoUpdateBehavior"		"0"
+	"AllowOtherDownloadsWhileRunning"		"2"
+	"ScheduledAutoUpdate"		"0"
+	"FullValidateAfterNextUpdate"		"1"
+	"InstalledDepots"
+	{
+		"2220"
+		{
+			"manifest"		"0"
+			"size"		"0"
+		}
+	}
+	"SharedDepots"
+	{
+		"228983"		"228980"
+		"228985"		"228980"
+		"228988"		"228980"
+		"228990"		"228980"
+		"229004"		"228980"
+	}
+	"UserConfig"
+	{
+		"language"		"english"
+		"platform_override_dest"		"linux"
+		"platform_override_source"		"windows"
+	}
+	"MountedConfig"
+	{
+		"language"		"english"
+		"platform_override_dest"		"linux"
+		"platform_override_source"		"windows"
+	}
+}

tests/fixtures/api/steamapps/appmanifest_333.acf

@@ -0,0 +1,53 @@
+"AppState"
+{
+	"appid"		"333"
+	"Universe"		"1"
+	"name"		"TEST APP"
+	"StateFlags"		"4"
+	"installdir"		"TESTAPP"
+	"LastUpdated"		"0"
+	"LastPlayed"		"0"
+	"SizeOnDisk"		"0"
+	"StagingSize"		"0"
+	"buildid"		"0"
+	"LastOwner"		"0"
+	"DownloadType"		"2"
+	"UpdateResult"		"0"
+	"BytesToDownload"		"0"
+	"BytesDownloaded"		"0"
+	"BytesToStage"		"0"
+	"BytesStaged"		"0"
+	"TargetBuildID"		"0"
+	"AutoUpdateBehavior"		"0"
+	"AllowOtherDownloadsWhileRunning"		"0"
+	"ScheduledAutoUpdate"		"0"
+	"FullValidateAfterNextUpdate"		"1"
+	"InstalledDepots"
+	{
+		"3330"
+		{
+			"manifest"		"0"
+			"size"		"0"
+		}
+	}
+	"SharedDepots"
+	{
+		"228983"		"228980"
+		"228985"		"228980"
+		"228988"		"228980"
+		"228990"		"228980"
+		"229004"		"228980"
+	}
+	"UserConfig"
+	{
+		"language"		"english"
+		"platform_override_dest"		"linux"
+		"platform_override_source"		"windows"
+	}
+	"MountedConfig"
+	{
+		"language"		"english"
+		"platform_override_dest"		"linux"
+		"platform_override_source"		"windows"
+	}
+}

tests/fixtures/cpp/mod1/meta.cpp

@@ -0,0 +1,5 @@
+protocol = 1;
+publishedid = 1234567890;
+name = "ModName";
+timestamp = 638278452000000000;
+hash = "a1b2c3d4e5f6g7h8i9j0";

tests/fixtures/cpp/mod2/meta.cpp

@@ -0,0 +1,5 @@
+protocol = 1
+publishedid = 1234567890
+name = "ModName"
+timestamp = 638278452000000000
+hash = "a1b2c3d4e5f6g7h8i9j0"

tests/fixtures/cpp/mod3/meta.cpp

@@ -0,0 +1,5 @@
+protocol=1
+publishedid=1234567890
+name="ModName"
+timestamp=638278452000000000
+hash="a1b2c3d4e5f6g7h8i9j0"

tests/fixtures/cpp/mod4/meta.cpp

@@ -0,0 +1,5 @@
+protocol=1
+publishedid=1234567890
+name=ModName
+timestamp=638278452000000000
+hash=a1b2c3d4e5f6g7h8i9j0

tests/fixtures/cpp/mod5/meta.cpp

@@ -0,0 +1,5 @@
+protocol=1;
+publishedid=1234567890;
+name=ModName;
+timestamp=638278452000000000;
+hash=a1b2c3d4e5f6g7h8i9j0;

tests/fixtures/cpp/mod6/meta.cpp

@@ -0,0 +1,5 @@
+protocol=1
+publishedid=1234567890;
+name="ModName";
+timestamp=638278452000000000;
+hash= a1b2c3d4e5f6g7h8i9j0;

tests/fixtures/dzg.versions

@@ -0,0 +1,8 @@
+1559212036,1771519119
+1564026768,1770917948
+2545327648,1780174455
+2276010135,1756744083
+1654462998,1780501511
+3410710885,1752864732
+2918418331,1780413260
+3739934289,1780855136

tests/fixtures/dztuirc_3

@@ -0,0 +1,42 @@
+#Path to DayZ installation
+steam_path="/tmp"
+
+#Battlemetrics API key
+api_key=""
+
+#Favorited server IP:PORT array
+ip_list=(
+)
+
+#Favorite server to fast-connect to (limit one)
+fav_server=""
+
+#Favorite server label (human readable)
+fav_label=""
+
+#Custom player name (optional, required by some servers)
+name=""
+
+#Set to 1 to perform dry-run and print launch options
+debug="1"
+
+#Toggle stable/testing branch
+branch="testing"
+
+#Steam API key
+steam_api=""
+
+#Auto-install mods
+auto_install="2"
+
+#Automod staging directory
+staging_dir="/tmp"
+
+#Path to default Steam client
+default_steam_path="/tmp"
+
+#Preferred Steam launch command (for Flatpak support)
+preferred_client="steam"
+
+#DZGUI source path
+src_path=""

tests/test_app_download_settings.py

@@ -0,0 +1,60 @@
+import pytest
+
+from _pytest.monkeypatch import MonkeyPatch
+from pathlib import Path
+
+from dzgui.api.steam import get_app_allows_downloads
+from tests.fixtures import fixture_path
+
+pytestmark = pytest.mark.apitest
+
+
+def mock_path(p: Path, appid: int) -> Path:
+    return Path(fixture_path("api"))
+
+
+def mock_config_allows(p: Path) -> Path:
+    return Path(fixture_path("api/client_allows_downloads.vdf"))
+
+
+def mock_config_disallows(p: Path) -> Path:
+    return Path(fixture_path("api/client_disallows_downloads.vdf"))
+
+
+def mock_config_missing(p: Path) -> Path:
+    return Path(fixture_path(""))
+
+
+@pytest.fixture
+def client_allows() -> Path:
+    return Path(fixture_path("api/client_allows_downloads.vdf"))
+
+
+@pytest.fixture
+def steam_path() -> Path:
+    return Path(fixture_path("api"))
+
+
+@pytest.fixture(scope="module", autouse=True)
+def patch_api() -> None:
+    mp = MonkeyPatch()
+    mp.setattr("dzgui.api.steam.get_app_path", mock_path)
+    yield
+    mp.undo()
+
+
+def test_app_allows_downloads(steam_path) -> None:
+    assert get_app_allows_downloads(steam_path, 111) is True
+
+
+def test_app_disallows_downloads(steam_path):
+    assert get_app_allows_downloads(steam_path, 222) is False
+
+
+def test_app_delegates_downloads(monkeypatch, steam_path, client_allows):
+    monkeypatch.setattr("dzgui.api.steam.get_config", mock_config_disallows)
+    assert get_app_allows_downloads(steam_path, 333) is False
+    monkeypatch.setattr("dzgui.api.steam.get_config", mock_config_allows)
+    assert get_app_allows_downloads(steam_path, 333) is True
+    monkeypatch.setattr("dzgui.api.steam.get_config", mock_config_missing)
+    assert get_app_allows_downloads(steam_path, 333) is True