Return a enumeration of the state of handling of InputEvents.

third_party/WebKit/Source/web/PageWidgetDelegate.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 35 matching lines @@
 class WebMouseEvent;
 class WebMouseWheelEvent;
 class WebTouchEvent;
 
 class PageWidgetEventHandler {
 public:
     virtual void handleMouseMove(LocalFrame& mainFrame, const WebMouseEvent&);
     virtual void handleMouseLeave(LocalFrame& mainFrame, const WebMouseEvent&);
     virtual void handleMouseDown(LocalFrame& mainFrame, const WebMouseEvent&);
     virtual void handleMouseUp(LocalFrame& mainFrame, const WebMouseEvent&);
-    virtual bool handleMouseWheel(LocalFrame& mainFrame, const WebMouseWheelEvent&);
-    virtual bool handleKeyEvent(const WebKeyboardEvent&) = 0;
-    virtual bool handleCharEvent(const WebKeyboardEvent&) = 0;
-    virtual bool handleGestureEvent(const WebGestureEvent&) = 0;
-    virtual bool handleTouchEvent(LocalFrame& mainFrame, const WebTouchEvent&);
+    virtual WebInputEventResult handleMouseWheel(LocalFrame& mainFrame, const WebMouseWheelEvent&);
+    virtual WebInputEventResult handleKeyEvent(const WebKeyboardEvent&) = 0;
+    virtual WebInputEventResult handleCharEvent(const WebKeyboardEvent&) = 0;
+    virtual WebInputEventResult handleGestureEvent(const WebGestureEvent&) = 0;
+    virtual WebInputEventResult handleTouchEvent(LocalFrame& mainFrame, const WebTouchEvent&);
     virtual ~PageWidgetEventHandler() { }
 protected:
     const char* inputTypeToName(WebInputEvent::Type);
 };
 
 
 // Common implementation of WebViewImpl and WebPagePopupImpl.
 class PageWidgetDelegate {
 public:
     static void animate(Page&, double monotonicFrameBeginTime);
 
     // For the following methods, the |root| argument indicates a root localFrame from which
     // to start performing the specified operation.
 
     // See documents of methods with the same names in FrameView class.
     static void updateLifecycleToCompositingCleanPlusScrolling(Page&, LocalFrame& root);
     static void updateAllLifecyclePhases(Page&, LocalFrame& root);
 
     static void paint(Page&, WebCanvas*, const WebRect&, LocalFrame& root);
     static void paintIgnoringCompositing(Page&, WebCanvas*, const WebRect&, LocalFrame& root);
 
     // See FIXME in the function body about nullptr |root|.
-    static bool handleInputEvent(PageWidgetEventHandler&, const WebInputEvent&, LocalFrame* root);
+    static WebInputEventResult handleInputEvent(PageWidgetEventHandler&, const WebInputEvent&, LocalFrame* root);
 
 private:
     PageWidgetDelegate() { }
 };
 
 }
 #endif