filter middle click pastes

aqt/editor.py

@@ -789,14 +789,20 @@ class EditorWebView(AnkiWebView):
     def onCopy(self):
         self.triggerPageAction(QWebEnginePage.Copy)
 
-    def onPaste(self):
+    def _onPaste(self, mode):
         extended = self.editor.mw.app.queryKeyboardModifiers() & Qt.ShiftModifier
-        mime = self.editor.mw.app.clipboard().mimeData(mode=QClipboard.Clipboard)
+        mime = self.editor.mw.app.clipboard().mimeData(mode=mode)
         html, internal = self._processMime(mime)
         if not html:
             return
         self.editor.doPaste(html, internal, extended)
 
+    def onPaste(self):
+        self._onPaste(QClipboard.Clipboard)
+
+    def onMiddleClickPaste(self):
+        self._onPaste(QClipboard.Selection)
+
     def dropEvent(self, evt):
         mime = evt.mimeData()
 

aqt/webview.py

@@ -108,6 +108,11 @@ class AnkiWebView(QWebEngineView):
         # disable pinch to zoom gesture
         if isinstance(evt, QNativeGestureEvent):
             return True
+        elif evt.type() == QEvent.MouseButtonRelease:
+            if evt.button() == Qt.MidButton and isLin:
+                self.onMiddleClickPaste()
+                return True
+            return False
         return False
 
     def onEsc(self):
@@ -133,6 +138,9 @@ class AnkiWebView(QWebEngineView):
     def onPaste(self):
         self.triggerPageAction(QWebEnginePage.Paste)
 
+    def onMiddleClickPaste(self):
+        self.triggerPageAction(QWebEnginePage.Paste)
+
     def onSelectAll(self):
         self.triggerPageAction(QWebEnginePage.SelectAll)