miscellaneous pyqt6 compat fixes

- add a few gates for qt5-specific behaviour
- prepare for some changes to the typings in qt6
- map pickled Qt5 ByteArrays to Qt6 when running Qt6

qt/aqt/__init__.py

@@ -372,8 +372,6 @@ def setupGL(pm: aqt.profiles.ProfileManager) -> None:
             category = "debug"
         elif category == QtFatalMsg:
             category = "fatal"
-        elif category == QtSystemMsg:
-            category = "system"
         else:
             category = "unknown"
         context = ""

qt/aqt/main.py

@@ -1032,7 +1032,7 @@ title="{}" {}>{}</button>""".format(
 
     def clearStateShortcuts(self) -> None:
         for qs in self.stateShortcuts:
-            sip.delete(qs)
+            sip.delete(qs)  # type: ignore
         self.stateShortcuts = []
 
     def onStudyKey(self) -> None:

qt/aqt/profiles.py

@@ -163,25 +163,32 @@ class ProfileManager:
 
     def _unpickle(self, data: bytes) -> Any:
         class Unpickler(pickle.Unpickler):
-            def find_class(self, module: str, name: str) -> Any:
-                if module == "PyQt5.sip":
-                    try:
-                        import PyQt5.sip  # pylint: disable=unused-import
-                    except:
-                        # use old sip location
-                        module = "sip"
-                fn = super().find_class(module, name)
-                if module == "sip" and name == "_unpickle_type":
+            def find_class(self, class_module: str, name: str) -> Any:
+                # handle sip lookup ourselves, mapping to current Qt version
+                if class_module == "sip" or class_module.endswith(".sip"):
 
-                    def wrapper(mod, obj, args) -> Any:  # type: ignore
-                        if mod.startswith("PyQt4") and obj == "QByteArray":
-                            # can't trust str objects from python 2
-                            return QByteArray()
-                        return fn(mod, obj, args)
+                    def unpickle_type(module: str, klass: str, args: Any) -> Any:
+                        if qtmajor > 5:
+                            module = module.replace("Qt5", "Qt6")
+                        else:
+                            module = module.replace("Qt6", "Qt5")
+                        if klass == "QByteArray":
+                            if module.startswith("PyQt4"):
+                                # can't trust str objects from python 2
+                                return QByteArray()
+                            else:
+                                # return the bytes directly
+                                return args[0]
+                        elif name == "_unpickle_enum":
+                            if qtmajor == 5:
+                                return sip._unpickle_enum(module, klass, args)  # type: ignore
+                            else:
+                                # old style enums can't be unpickled
+                                return None
+                        else:
+                            return sip._unpickle_type(module, klass, args)  # type: ignore
 
-                    return wrapper
-                else:
-                    return fn
+                    return unpickle_type
 
         up = Unpickler(io.BytesIO(data), errors="ignore")
         return up.load()

qt/aqt/qt.py

@@ -57,6 +57,9 @@ if qtmajor < 5 or (qtmajor == 5 and qtminor < 14):
     raise Exception("Anki does not support your Qt version.")
 
 
-def qconnect(signal: Union[Callable, pyqtSignal], func: Callable) -> None:
-    "Helper to work around type checking not working with signal.connect(func)."
+def qconnect(
+    signal: Union[Callable, pyqtSignal, pyqtBoundSignal], func: Callable
+) -> None:
+    """Helper to work around type checking not working with signal.connect(func).
+    Not needed in PyQt6"""
     signal.connect(func)  # type: ignore

qt/aqt/qt5.py

@@ -23,7 +23,11 @@ class QtAudioInputRecorder(Recorder):
         self.mw = mw
         self._parent = parent
 
-        from PyQt5.QtMultimedia import QAudioDeviceInfo, QAudioFormat, QAudioInput
+        from PyQt5.QtMultimedia import (  # type: ignore
+            QAudioDeviceInfo,
+            QAudioFormat,
+            QAudioInput,
+        )
 
         format = QAudioFormat()
         format.setChannelCount(1)

qt/aqt/switch.py

@@ -1,5 +1,6 @@
 # Copyright: Ankitects Pty Ltd and contributors
 # License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+from typing import cast
 
 from aqt import colors
 from aqt.qt import *
@@ -128,7 +129,7 @@ class Switch(QAbstractButton):
         self._animate_toggle()
 
     def _animate_toggle(self) -> None:
-        animation = QPropertyAnimation(self, b"position", self)
+        animation = QPropertyAnimation(self, cast(QByteArray, b"position"), self)
         animation.setDuration(100)
         animation.setStartValue(self.start_position)
         animation.setEndValue(self.end_position)

qt/aqt/tagedit.py

@@ -99,7 +99,7 @@ class TagEdit(QLineEdit):
         self._completer.popup().hide()
 
     def hideCompleter(self) -> None:
-        if sip.isdeleted(self._completer):
+        if sip.isdeleted(self._completer):  # type: ignore
             return
         self._completer.popup().hide()
 

qt/aqt/utils.py

@@ -866,6 +866,8 @@ Add-ons, last update check: {}
 
 # adapted from version detection in qutebrowser
 def opengl_vendor() -> str | None:
+    if qtmajor != 5:
+        return "unknown"
     old_context = QOpenGLContext.currentContext()
     old_surface = None if old_context is None else old_context.surface()
 
@@ -886,11 +888,11 @@ def opengl_vendor() -> str | None:
             # Can't use versionFunctions there
             return None
 
-        vp = QOpenGLVersionProfile()
+        vp = QOpenGLVersionProfile()  # type: ignore
         vp.setVersion(2, 0)
 
         try:
-            vf = ctx.versionFunctions(vp)
+            vf = ctx.versionFunctions(vp)  # type: ignore
         except ImportError as e:
             return None
 

qt/aqt/webview.py

@@ -350,9 +350,9 @@ class AnkiWebView(QWebEngineView):
         if webscale:
             return float(webscale)
 
-        if isMac:
+        if qtmajor > 5 or isMac:
             return 1
-        screen = QApplication.desktop().screen()
+        screen = QApplication.desktop().screen()  # type: ignore
         if screen is None:
             return 1