PageWidgetDelegate.h   [plain text]

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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 * 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
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 */

#ifndef PageWidgetDelegate_h
#define PageWidgetDelegate_h

#include "Page.h"
#include "WebWidget.h"
#include "platform/WebCanvas.h"
#include <wtf/OwnPtr.h>

namespace WebCore {
class Frame;
class Page;
}

namespace WebKit {

class PageOverlayList;
class WebGestureEvent;
class WebInputEvent;
class WebKeyboardEvent;
class WebMouseEvent;
class WebMouseWheelEvent;
class WebTouchEvent;

class PageWidgetEventHandler {
public:
    virtual void handleMouseMove(WebCore::Frame& mainFrame, const WebMouseEvent&);
    virtual void handleMouseLeave(WebCore::Frame& mainFrame, const WebMouseEvent&);
    virtual void handleMouseDown(WebCore::Frame& mainFrame, const WebMouseEvent&);
    virtual void handleMouseUp(WebCore::Frame& mainFrame, const WebMouseEvent&);
    virtual bool handleMouseWheel(WebCore::Frame& mainFrame, const WebMouseWheelEvent&);
    virtual bool handleKeyEvent(const WebKeyboardEvent&) = 0;
    virtual bool handleCharEvent(const WebKeyboardEvent&) = 0;
#if ENABLE(GESTURE_EVENTS)
    virtual bool handleGestureEvent(const WebGestureEvent&) = 0;
#endif
#if ENABLE(TOUCH_EVENTS)
    virtual bool handleTouchEvent(WebCore::Frame& mainFrame, const WebTouchEvent&);
#endif
    virtual ~PageWidgetEventHandler() { }
};


// Common implementation of WebViewImpl and WebPagePopupImpl.
class PageWidgetDelegate {
public:
    static void animate(WebCore::Page*, double monotonicFrameBeginTime);
    static void layout(WebCore::Page*);
    static void paint(WebCore::Page*, PageOverlayList*, WebCanvas*, const WebRect&);
    static bool handleInputEvent(WebCore::Page*, PageWidgetEventHandler&, const WebInputEvent&);

private:
    PageWidgetDelegate() { }
};

}
#endif