Extend pakjoy to Qt 6.5.0/.1/.2 with dark mode

See #7837

doc/changelog.asciidoc

@@ -51,7 +51,8 @@ Fixed
 
 - Compatibility with PDF.js v4
 - Added an elaborate workaround for a bug in QtWebEngine 6.6.0 causing crashes
-  on Google Mail/Meet/Chat.
+  on Google Mail/Meet/Chat, and a bug in QtWebEngine 6.5.0/.1/.2 causing crashes
+  there with dark mode.
 - Graphical glitches in Google sheets and PDF.js, again. Removed the version
   restriction for the default application of
   `qt.workarounds.disable_accelerated_2d_canvas` as the issue was still

qutebrowser/misc/pakjoy.py

@@ -32,11 +32,15 @@ import dataclasses
 import contextlib
 from typing import ClassVar, IO, Optional, Dict, Tuple, Iterator
 
+from qutebrowser.config import config
 from qutebrowser.misc import binparsing, objects
 from qutebrowser.utils import qtutils, standarddir, version, utils, log
 
 HANGOUTS_MARKER = b"// Extension ID: nkeimhogjdpnpccoofpliimaahmaaome"
-HANGOUTS_ID = 36197  # as found by toofar
+HANGOUTS_IDS = [
+    36197,  # QtWebEngine 6.5, as found by toofar
+    34897,  # QtWebEngine 6.4
+]
 PAK_VERSION = 5
 RESOURCES_ENV_VAR = "QTWEBENGINE_RESOURCES_PATH"
 DISABLE_ENV_VAR = "QUTE_DISABLE_PAKJOY"
@@ -136,9 +140,10 @@ class PakParser:
 
     def _find_manifest(self, entries: Dict[int, PakEntry]) -> Tuple[PakEntry, bytes]:
         to_check = list(entries.values())
-        if HANGOUTS_ID in entries:
-            # Most likely candidate, based on previous known ID
-            to_check.insert(0, entries[HANGOUTS_ID])
+        for hangouts_id in HANGOUTS_IDS:
+            if hangouts_id in entries:
+                # Most likely candidate, based on previous known ID
+                to_check.insert(0, entries[hangouts_id])
 
         for entry in to_check:
             manifest = self._maybe_get_hangouts_manifest(entry)
@@ -192,7 +197,16 @@ def copy_webengine_resources() -> Optional[pathlib.Path]:
         shutil.rmtree(work_dir)
 
     versions = version.qtwebengine_versions(avoid_init=True)
-    if versions.webengine != utils.VersionNumber(6, 6):
+    if not (
+        # https://bugreports.qt.io/browse/QTBUG-118157
+        versions.webengine == utils.VersionNumber(6, 6)
+        # https://bugreports.qt.io/browse/QTBUG-113369
+        or (
+            versions.webengine >= utils.VersionNumber(6, 5)
+            and versions.webengine < utils.VersionNumber(6, 5, 3)
+            and config.val.colors.webpage.darkmode.enabled
+        )
+    ):
         # No patching needed
         return None
 

tests/unit/misc/test_pakjoy.py

@@ -43,26 +43,38 @@ def prepare_env(qapp, monkeypatch):
     monkeypatch.delenv(pakjoy.DISABLE_ENV_VAR, raising=False)
 
 
-def patch_version(monkeypatch, *args):
+def patch_version(monkeypatch: pytest.MonkeyPatch, qtwe_version: utils.VersionNumber):
     monkeypatch.setattr(
         pakjoy.version,
         "qtwebengine_versions",
         lambda **kwargs: version.WebEngineVersions(
-            webengine=utils.VersionNumber(*args),
+            webengine=qtwe_version,
             chromium=None,
             source="unittest",
         ),
     )
 
 
-@pytest.fixture
-def unaffected_version(monkeypatch):
-    patch_version(monkeypatch, 6, 6, 1)
+@pytest.fixture(params=[
+    utils.VersionNumber(6, 4),
+    utils.VersionNumber(6, 5, 3),
+    utils.VersionNumber(6, 6, 1),
+    utils.VersionNumber(6, 7),
+])
+def unaffected_version(monkeypatch: pytest.MonkeyPatch, request: pytest.FixtureRequest, config_stub):
+    config_stub.val.colors.webpage.darkmode.enabled = True
+    patch_version(monkeypatch, request.param)
 
 
-@pytest.fixture
-def affected_version(monkeypatch):
-    patch_version(monkeypatch, 6, 6)
+@pytest.fixture(params=[
+    utils.VersionNumber(6, 5),
+    utils.VersionNumber(6, 5, 1),
+    utils.VersionNumber(6, 5, 2),
+    utils.VersionNumber(6, 6),
+])
+def affected_version(monkeypatch: pytest.MonkeyPatch, request: pytest.FixtureRequest, config_stub):
+    config_stub.val.colors.webpage.darkmode.enabled = True
+    patch_version(monkeypatch, request.param)
 
 
 @pytest.mark.parametrize("workdir_exists", [True, False])
@@ -318,7 +330,7 @@ class TestWithConstructedResourcesFile:
 
     @pytest.mark.parametrize(
         "offset",
-        [0, 42, pakjoy.HANGOUTS_ID],  # test both slow search and fast path
+        [0, 42, *pakjoy.HANGOUTS_IDS],  # test both slow search and fast path
     )
     def test_happy_path(self, offset):
         entries = [b""] * offset + [json_manifest_factory()]