Hook editor_web_view_did_init

I hope to use this in oder to had features to the web view. In
particular, I expect the "spell checking" feature to use it
hopefully. Because currently it's incompatible with other add-on
dealing with the editor

qt/aqt/editor.py

@@ -954,6 +954,7 @@ class EditorWebView(AnkiWebView):
         self._markInternal = False
         clip = self.editor.mw.app.clipboard()
         clip.dataChanged.connect(self._onClipboardChange)
+        gui_hooks.editor_web_view_did_init(self)
 
     def _onClipboardChange(self):
         if self._markInternal:

qt/aqt/gui_hooks.py

@@ -1036,6 +1036,30 @@ class _EditorDidUpdateTagsHook:
 editor_did_update_tags = _EditorDidUpdateTagsHook()
 
 
+class _EditorWebViewDidInitHook:
+    _hooks: List[Callable[["aqt.editor.EditorWebView"], None]] = []
+
+    def append(self, cb: Callable[["aqt.editor.EditorWebView"], None]) -> None:
+        """(editor_web_view: aqt.editor.EditorWebView)"""
+        self._hooks.append(cb)
+
+    def remove(self, cb: Callable[["aqt.editor.EditorWebView"], None]) -> None:
+        if cb in self._hooks:
+            self._hooks.remove(cb)
+
+    def __call__(self, editor_web_view: aqt.editor.EditorWebView) -> None:
+        for hook in self._hooks:
+            try:
+                hook(editor_web_view)
+            except:
+                # if the hook fails, remove it
+                self._hooks.remove(hook)
+                raise
+
+
+editor_web_view_did_init = _EditorWebViewDidInitHook()
+
+
 class _EditorWillShowContextMenuHook:
     _hooks: List[Callable[["aqt.editor.EditorWebView", QMenu], None]] = []
 

qt/tools/genhooks_gui.py

@@ -460,6 +460,10 @@ def emptyNewCard():
         return_type="str",
         legacy_hook="mungeEditingFontName",
     ),
+    Hook(
+        name="editor_web_view_did_init",
+        args=["editor_web_view: aqt.editor.EditorWebView"],
+    ),
     # Sound/video
     ###################
     Hook(name="av_player_will_play", args=["tag: anki.sound.AVTag"]),