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86 lines
3.4 KiB
C++
86 lines
3.4 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PageWidgetDelegate_h
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#define PageWidgetDelegate_h
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#include "public/platform/WebCanvas.h"
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#include "public/web/WebWidget.h"
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#include "wtf/OwnPtr.h"
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namespace blink {
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class LocalFrame;
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class Page;
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class PageOverlayList;
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class WebGestureEvent;
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class WebInputEvent;
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class WebKeyboardEvent;
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class WebMouseEvent;
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class WebMouseWheelEvent;
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class WebTouchEvent;
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class PageWidgetEventHandler {
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public:
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virtual void handleMouseMove(LocalFrame& mainFrame, const WebMouseEvent&);
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virtual void handleMouseLeave(LocalFrame& mainFrame, const WebMouseEvent&);
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virtual void handleMouseDown(LocalFrame& mainFrame, const WebMouseEvent&);
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virtual void handleMouseUp(LocalFrame& mainFrame, const WebMouseEvent&);
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virtual bool handleMouseWheel(LocalFrame& mainFrame, const WebMouseWheelEvent&);
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virtual bool handleKeyEvent(const WebKeyboardEvent&) = 0;
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virtual bool handleCharEvent(const WebKeyboardEvent&) = 0;
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virtual bool handleGestureEvent(const WebGestureEvent&) = 0;
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virtual bool handleTouchEvent(LocalFrame& mainFrame, const WebTouchEvent&);
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virtual ~PageWidgetEventHandler() { }
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};
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// Common implementation of WebViewImpl.
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class PageWidgetDelegate {
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public:
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enum CanvasBackground {
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Opaque,
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Translucent,
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};
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// rootFrame arguments indicate a root localFrame from which to start performing the
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// specified operation. If rootFrame is 0, these methods will attempt to use the
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// Page's mainFrame(), if it is a LocalFrame.
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static void animate(Page*, double monotonicFrameBeginTime, LocalFrame* rootFrame = 0);
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static void layout(Page*, LocalFrame* rootFrame = 0);
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static void paint(Page*, PageOverlayList*, WebCanvas*, const WebRect&, CanvasBackground, LocalFrame* rootFrame = 0);
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static bool handleInputEvent(Page*, PageWidgetEventHandler&, const WebInputEvent&, LocalFrame* rootFrame = 0);
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private:
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PageWidgetDelegate() { }
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};
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}
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#endif
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