hook debug_will_show_hook

qt/aqt/gui_hooks.py

@@ -13,7 +13,7 @@ import anki
 import aqt
 from anki.cards import Card
 from anki.hooks import runFilter, runHook
-from aqt.qt import QMenu
+from aqt.qt import QDialog, QMenu
 
 # New hook/filter handling
 ##############################################################################
@@ -520,6 +520,33 @@ class _CurrentNoteTypeDidChangeHook:
 current_note_type_did_change = _CurrentNoteTypeDidChangeHook()
 
 
+class _DebugConsoleWillShowHook:
+    """Allows editing the debug window. E.g. setting a default code, or
+        previous code."""
+
+    _hooks: List[Callable[[QDialog], None]] = []
+
+    def append(self, cb: Callable[[QDialog], None]) -> None:
+        """(debug_window: QDialog)"""
+        self._hooks.append(cb)
+
+    def remove(self, cb: Callable[[QDialog], None]) -> None:
+        if cb in self._hooks:
+            self._hooks.remove(cb)
+
+    def __call__(self, debug_window: QDialog) -> None:
+        for hook in self._hooks:
+            try:
+                hook(debug_window)
+            except:
+                # if the hook fails, remove it
+                self._hooks.remove(hook)
+                raise
+
+
+debug_console_will_show = _DebugConsoleWillShowHook()
+
+
 class _DeckBrowserDidRenderHook:
     """Allow to update the deck browser window. E.g. change its title."""
 

qt/aqt/main.py

@@ -1342,6 +1342,7 @@ will be lost. Continue?"""
         s.activated.connect(frm.log.clear)
         s = self.debugDiagShort = QShortcut(QKeySequence("ctrl+shift+l"), d)
         s.activated.connect(frm.text.clear)
+        gui_hooks.debug_console_will_show(d)
         d.show()
 
     def _captureOutput(self, on):

qt/tools/genhooks_gui.py

@@ -11,6 +11,7 @@ import sys
 pylib = os.path.join(os.path.dirname(__file__), "..", "..", "pylib")
 sys.path.append(pylib)
 
+
 from tools.hookslib import Hook, update_file
 
 # Hook list
@@ -89,6 +90,14 @@ hooks = [
         legacy_hook="reviewCleanup",
         doc="Called before Anki transitions from the review screen to another screen.",
     ),
+    # Debug
+    ###################
+    Hook(
+        name="debug_console_will_show",
+        args=["debug_window: QDialog"],
+        doc="""Allows editing the debug window. E.g. setting a default code, or
+        previous code.""",
+    ),
     # Card layout
     ###################
     Hook(