emptyclients.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

    virtual void finishedLoading(DocumentLoader*) { }

    virtual ResourceError cancelledError(const ResourceRequest&) { ResourceError error("", 0, "", ""); error.setIsCancellation(true); return error; }
    virtual ResourceError blockedError(const ResourceRequest&) { return ResourceError("", 0, "", ""); }
    virtual ResourceError cannotShowURLError(const ResourceRequest&) { return ResourceError("", 0, "", ""); }
    virtual ResourceError interruptForPolicyChangeError(const ResourceRequest&) { return ResourceError("", 0, "", ""); }

    virtual ResourceError cannotShowMIMETypeError(const ResourceResponse&) { return ResourceError("", 0, "", ""); }
    virtual ResourceError fileDoesNotExistError(const ResourceResponse&) { return ResourceError("", 0, "", ""); }
    virtual ResourceError pluginWillHandleLoadError(const ResourceResponse&) { return ResourceError("", 0, "", ""); }

    virtual bool shouldFallBack(const ResourceError&) { return false; }

    virtual bool canHandleRequest(const ResourceRequest&) const { return false; }
    virtual bool canShowMIMEType(const String&) const { return false; }
    virtual bool representationExistsForURLScheme(const String&) const { return false; }
    virtual String generatedMIMETypeForURLScheme(const String&) const { return ""; }

    virtual void frameLoadCompleted() { }
    virtual void restoreViewState() { }
    virtual void provisionalLoadStarted() { }
    virtual bool shouldTreatURLAsSameAsCurrent(const KURL&) const { return false; }
    virtual void didFinishLoad() { }
    virtual void prepareForDataSourceReplacement() { }

    virtual PassRefPtr<DocumentLoader> createDocumentLoader(const ResourceRequest& request, const SubstituteData& substituteData) { return DocumentLoader::create(request, substituteData); }
    virtual void setTitle(const String&, const KURL&) { }

    virtual String userAgent(const KURL&) { return ""; }

    virtual void savePlatformDataToCachedFrame(CachedFrame*) { }
    virtual void transitionToCommittedFromCachedFrame(CachedFrame*) { }
    virtual void transitionToCommittedForNewPage() { }    

    virtual void updateGlobalHistory() { }
    virtual void updateGlobalHistoryRedirectLinks() { }
    virtual bool shouldGoToHistoryItem(HistoryItem*) const { return false; }
    virtual void saveViewStateToItem(HistoryItem*) { }
    virtual bool canCachePage() const { return false; }

    virtual PassRefPtr<Frame> createFrame(const KURL&, const String&, HTMLFrameOwnerElement*, const String&, bool, int, int) { return 0; }
    virtual Widget* createPlugin(const IntSize&, HTMLPlugInElement*, const KURL&, const Vector<String>&, const Vector<String>&, const String&, bool) { return 0; }
    virtual Widget* createJavaAppletWidget(const IntSize&, HTMLAppletElement*, const KURL&, const Vector<String>&, const Vector<String>&) { return 0; }

    virtual ObjectContentType objectContentType(const KURL&, const String&) { return ObjectContentType(); }
    virtual String overrideMediaType() const { return String(); }

    virtual void redirectDataToPlugin(Widget*) { }
    virtual void windowObjectCleared() { }
    virtual void documentElementAvailable() { }
    virtual void didPerformFirstNavigation() const { }

    virtual void registerForIconNotification(bool) { }

#if PLATFORM(MAC)
    virtual NSCachedURLResponse* willCacheResponse(DocumentLoader*, unsigned long, NSCachedURLResponse* response) const { return response; }
#endif

};

class EmptyEditorClient : public EditorClient {
public:
    virtual ~EmptyEditorClient() { }
    virtual void pageDestroyed() { }

    virtual bool shouldDeleteRange(Range*) { return false; }
    virtual bool shouldShowDeleteInterface(HTMLElement*) { return false; }
    virtual bool smartInsertDeleteEnabled() { return false; }
    virtual bool isSelectTrailingWhitespaceEnabled() { return false; }
    virtual bool isContinuousSpellCheckingEnabled() { return false; }
    virtual void toggleContinuousSpellChecking() { }
    virtual bool isGrammarCheckingEnabled() { return false; }
    virtual void toggleGrammarChecking() { }
    virtual int spellCheckerDocumentTag() { return -1; }

    virtual bool selectWordBeforeMenuEvent() { return false; }
    virtual bool isEditable() { return false; }

    virtual bool shouldBeginEditing(Range*) { return false; }
    virtual bool shouldEndEditing(Range*) { return false; }
    virtual bool shouldInsertNode(Node*, Range*, EditorInsertAction) { return false; }
    //  virtual bool shouldInsertNode(Node*, Range* replacingRange, WebViewInsertAction) { return false; }
    virtual bool shouldInsertText(const String&, Range*, EditorInsertAction) { return false; }
    virtual bool shouldChangeSelectedRange(Range*, Range*, EAffinity, bool) { return false; }

    virtual bool shouldApplyStyle(CSSStyleDeclaration*, Range*) { return false; }
    virtual bool shouldMoveRangeAfterDelete(Range*, Range*) { return false; }
    //  virtual bool shouldChangeTypingStyle(CSSStyleDeclaration* fromStyle, CSSStyleDeclaration* toStyle) { return false; }
    //  virtual bool doCommandBySelector(SEL selector) { return false; }
    //
    virtual void didBeginEditing() { }
    virtual void respondToChangedContents() { }
    virtual void respondToChangedSelection() { }
    virtual void didEndEditing() { }
    virtual void didWriteSelectionToPasteboard() { }
    virtual void didSetSelectionTypesForPasteboard() { }
    //  virtual void webViewDidChangeTypingStyle:(NSNotification *)notification { }
    //  virtual void webViewDidChangeSelection:(NSNotification *)notification { }
    //  virtual NSUndoManager* undoManagerForWebView:(WebView *)webView { return 0; }

    virtual void registerCommandForUndo(PassRefPtr<EditCommand>) { }
    virtual void registerCommandForRedo(PassRefPtr<EditCommand>) { }
    virtual void clearUndoRedoOperations() { }

    virtual bool canUndo() const { return false; }
    virtual bool canRedo() const { return false; }

    virtual void undo() { }
    virtual void redo() { }

    virtual void handleKeyboardEvent(KeyboardEvent*) { }
    virtual void handleInputMethodKeydown(KeyboardEvent*) { }

    virtual void textFieldDidBeginEditing(Element*) { }
    virtual void textFieldDidEndEditing(Element*) { }
    virtual void textDidChangeInTextField(Element*) { }
    virtual bool doTextFieldCommandFromEvent(Element*, KeyboardEvent*) { return false; }
    virtual void textWillBeDeletedInTextField(Element*) { }
    virtual void textDidChangeInTextArea(Element*) { }

#if PLATFORM(MAC)
    virtual void markedTextAbandoned(Frame*) { }

    virtual NSString* userVisibleString(NSURL*) { return 0; }
#ifdef BUILDING_ON_TIGER
    virtual NSArray* pasteboardTypesForSelection(Frame*) { return 0; }
#endif
#endif
    virtual void ignoreWordInSpellDocument(const String&) { }
    virtual void learnWord(const String&) { }
    virtual void checkSpellingOfString(const UChar*, int, int*, int*) { }
    virtual void checkGrammarOfString(const UChar*, int, Vector<GrammarDetail>&, int*, int*) { }
#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
    virtual void checkSpellingAndGrammarOfParagraph(const UChar*, int, bool, Vector<TextCheckingResult>&)  { }
#endif
    virtual void updateSpellingUIWithGrammarString(const String&, const GrammarDetail&) { }
    virtual void updateSpellingUIWithMisspelledWord(const String&) { }
    virtual void showSpellingUI(bool) { }
    virtual bool spellingUIIsShowing() { return false; }
    virtual void getGuessesForWord(const String&, Vector<String>&) { }
    virtual void setInputMethodState(bool) { }


};

class EmptyContextMenuClient : public ContextMenuClient {
public:
    virtual ~EmptyContextMenuClient() {  }
    virtual void contextMenuDestroyed() { }

    virtual PlatformMenuDescription getCustomMenuFromDefaultItems(ContextMenu*) { return 0; }
    virtual void contextMenuItemSelected(ContextMenuItem*, const ContextMenu*) { }

    virtual void downloadURL(const KURL&) { }
    virtual void copyImageToClipboard(const HitTestResult&) { }
    virtual void searchWithGoogle(const Frame*) { }
    virtual void lookUpInDictionary(Frame*) { }
    virtual void speak(const String&) { }
    virtual void stopSpeaking() { }

#if PLATFORM(MAC)
    virtual void searchWithSpotlight() { }
#endif
};

class EmptyDragClient : public DragClient {
public:
    virtual ~EmptyDragClient() {}
    virtual void willPerformDragDestinationAction(DragDestinationAction, DragData*) { }
    virtual void willPerformDragSourceAction(DragSourceAction, const IntPoint&, Clipboard*) { }
    virtual DragDestinationAction actionMaskForDrag(DragData*) { return DragDestinationActionNone; }
    virtual DragSourceAction dragSourceActionMaskForPoint(const IntPoint&) { return DragSourceActionNone; }
    virtual void startDrag(DragImageRef, const IntPoint&, const IntPoint&, Clipboard*, Frame*, bool) { }
    virtual DragImageRef createDragImageForLink(KURL&, const String&, Frame*) { return 0; }
    virtual void dragControllerDestroyed() { }
};

class EmptyInspectorClient : public InspectorClient {
public:
    virtual ~EmptyInspectorClient() { }

    virtual void inspectorDestroyed() { }

    virtual Page* createPage() { return 0; };

    virtual String localizedStringsURL() { return String(); }

    virtual String hiddenPanels() { return String(); }

    virtual void showWindow() { }
    virtual void closeWindow() { }

    virtual void attachWindow() { }
    virtual void detachWindow() { }

    virtual void setAttachedWindowHeight(unsigned) { }

    virtual void highlight(Node*) { }
    virtual void hideHighlight() { }
    virtual void inspectedURLChanged(const String&) { }

    virtual void populateSetting(const String&, InspectorController::Setting&) { }
    virtual void storeSetting(const String&, const InspectorController::Setting&) { }
    virtual void removeSetting(const String&) { }
};

}

#endif // EmptyClients_h