queryCommandSupported() should return 'true' for cut/copy/paste editing commands

Source/core/editing/EditorCommand.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Igalia S.L.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 1156 matching lines @@
 
 static bool supportedFromMenuOrKeyBinding(LocalFrame*)
 {
     return false;
 }
 
 static bool supportedCopyCut(LocalFrame* frame)
 {
     if (!frame)
         return false;
-
-    Settings* settings = frame->settings();
-    bool defaultValue = (settings && settings->javaScriptCanAccessClipboard()) || UserGestureIndicator::processingUserGesture();
-    return frame->editor().client().canCopyCut(frame, defaultValue);
+    return true;
 }
 
 static bool supportedPaste(LocalFrame* frame)
 {
     if (!frame)
         return false;
-
-    Settings* settings = frame->settings();
-    bool defaultValue = settings && settings->javaScriptCanAccessClipboard() && settings->DOMPasteAllowed();
-    return frame->editor().client().canPaste(frame, defaultValue);
+    return true;
 }
 
 // Enabled functions
 
 static bool enabled(LocalFrame&, Event*, EditorCommandSource)
 {
     return true;
 }
 
 static bool enabledVisibleSelection(LocalFrame& frame, Event* event, EditorCommandSource)
@@ skipping 24 matching lines @@
 }
 
 static bool enableCaretInEditableText(LocalFrame& frame, Event* event, EditorCommandSource)
 {
     const VisibleSelection& selection = frame.editor().selectionForCommand(event);
     return selection.isCaret() && selection.isContentEditable();
 }
 
 static bool enabledCopy(LocalFrame& frame, Event*, EditorCommandSource)
 {
-    return frame.editor().canDHTMLCopy() || frame.editor().canCopy();
+    Settings* settings = frame.settings();
+    bool defaultValue = (settings && settings->javaScriptCanAccessClipboard()) || UserGestureIndicator::processingUserGesture();
+    return frame.editor().client().canCopyCut(&frame, defaultValue) && (frame.editor().canDHTMLCopy() || frame.editor().canCopy());
 }
 
 static bool enabledCut(LocalFrame& frame, Event*, EditorCommandSource)
 {
-    return frame.editor().canDHTMLCut() || frame.editor().canCut();
+    Settings* settings = frame.settings();
+    bool defaultValue = (settings && settings->javaScriptCanAccessClipboard()) || UserGestureIndicator::processingUserGesture();
+    return frame.editor().client().canCopyCut(&frame, defaultValue) && (frame.editor().canDHTMLCut() || frame.editor().canCut());
 }
 
 static bool enabledInEditableText(LocalFrame& frame, Event* event, EditorCommandSource)
 {
     return frame.editor().selectionForCommand(event).rootEditableElement();
 }
 
 static bool enabledDelete(LocalFrame& frame, Event* event, EditorCommandSource source)
 {
     switch (source) {
@@ skipping 14 matching lines @@
     return caretBrowsingEnabled(frame) || enabledInEditableText(frame, event, dummyEditorCommandSource);
 }
 
 static bool enabledInRichlyEditableText(LocalFrame& frame, Event*, EditorCommandSource)
 {
     return frame.selection().isCaretOrRange() && frame.selection().isContentRichlyEditable() && frame.selection().rootEditableElement();
 }
 
 static bool enabledPaste(LocalFrame& frame, Event*, EditorCommandSource)
 {
-    return frame.editor().canPaste();
+    Settings* settings = frame.settings();
+    bool defaultValue = settings && settings->javaScriptCanAccessClipboard() && settings->DOMPasteAllowed();
+    return frame.editor().client().canPaste(&frame, defaultValue) && frame.editor().canPaste();
 }
 
 static bool enabledRangeInEditableText(LocalFrame& frame, Event*, EditorCommandSource)
 {
     return frame.selection().isRange() && frame.selection().isContentEditable();
 }
 
 static bool enabledRangeInRichlyEditableText(LocalFrame& frame, Event*, EditorCommandSource)
 {
     return frame.selection().isRange() && frame.selection().isContentRichlyEditable();
@@ skipping 501 matching lines @@
 {
     return m_command && m_command->isTextInsertion;
 }
 
 int Editor::Command::idForHistogram() const
 {
     return isSupported() ? m_command->idForUserMetrics : 0;
 }
 
 } // namespace blink