Fix some interruption issues in discord.

src/cthulhu/scripts/web/script.py

@@ -1083,7 +1083,7 @@ class Script(default.Script):
         """Speaks the specified contents."""
 
         utterances = self.speechGenerator.generateContents(contents, **args)
-        speech.speak(utterances)
+        speech.speak(utterances, interrupt=args.get("interrupt", True))
 
     def sayCharacter(self, obj):
         """Speaks the character at the current caret position."""
@@ -1874,11 +1874,15 @@ class Script(default.Script):
                 debug.printMessage(debug.LEVEL_INFO, msg, True)
                 return True
 
+        if self.utilities.shouldInterruptForLocusOfFocusChange(oldFocus, newFocus, event):
+            self.presentationInterrupt()
+
+        args["interrupt"] = False
         if contents:
             self.speakContents(contents, **args)
         else:
             utterances = self.speechGenerator.generateSpeech(newFocus, **args)
-            speech.speak(utterances)
+            speech.speak(utterances, interrupt=False)
 
         self._saveFocusedObjectInfo(newFocus)
 
@@ -2650,6 +2654,44 @@ class Script(default.Script):
         self._lastCommandWasMouseButton = True
         return False
 
+    def onDescriptionChanged(self, event):
+        """Callback for object:property-change:accessible-description events."""
+
+        if self.utilities.eventIsBrowserUINoise(event):
+            msg = "WEB: Ignoring event believed to be browser UI noise"
+            debug.printMessage(debug.LEVEL_INFO, msg, True)
+            return True
+
+        obj = event.source
+        if not self.utilities.inDocumentContent(obj):
+            return False
+
+        descriptions = self.pointOfReference.get('descriptions', {})
+        oldDescription = descriptions.get(hash(obj))
+        if oldDescription == event.any_data:
+            tokens = ["WEB: Old description (", oldDescription, ") is the same as new one"]
+            debug.printTokens(debug.LEVEL_INFO, tokens, True)
+            return True
+
+        descriptions[hash(obj)] = event.any_data
+        self.pointOfReference['descriptions'] = descriptions
+        if obj != cthulhu_state.locusOfFocus:
+            msg = "WEB: Description change is for object other than locusOfFocus"
+            debug.printMessage(debug.LEVEL_INFO, msg, True)
+            return True
+
+        if not event.any_data:
+            return True
+
+        name = AXObject.get_name(obj)
+        if self.utilities.stringsAreRedundant(name, event.any_data):
+            tokens = ["WEB: Description change is redundant with name for", obj]
+            debug.printTokens(debug.LEVEL_INFO, tokens, True)
+            return True
+
+        self.presentMessage(event.any_data, interrupt=False)
+        return True
+
     def onNameChanged(self, event):
         """Callback for object:property-change:accessible-name events."""