1 /* 2 * Copyright 2012, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef IFrameContentLayerAndroid_h 27 #define IFrameContentLayerAndroid_h 28 29 #if USE(ACCELERATED_COMPOSITING) 30 31 #include "ScrollableLayerAndroid.h" 32 33 namespace WebCore { 34 35 class IFrameContentLayerAndroid : public ScrollableLayerAndroid { 36 37 public: 38 IFrameContentLayerAndroid(RenderLayer* owner) 39 : ScrollableLayerAndroid(owner) {} 40 IFrameContentLayerAndroid(const ScrollableLayerAndroid& layer) 41 : ScrollableLayerAndroid(layer) {} 42 IFrameContentLayerAndroid(const LayerAndroid& layer) 43 : ScrollableLayerAndroid(layer) {} 44 IFrameContentLayerAndroid(const IFrameContentLayerAndroid& layer) 45 : ScrollableLayerAndroid(layer) 46 , m_iframeScrollOffset(layer.m_iframeScrollOffset) {} 47 48 virtual ~IFrameContentLayerAndroid() {}; 49 50 // isIFrame() return true for compatibility reason (see ViewStateSerializer) 51 virtual bool isIFrame() const { return true; } 52 virtual bool isIFrameContent() const { return true; } 53 54 virtual LayerAndroid* copy() const { return new IFrameContentLayerAndroid(*this); } 55 virtual SubclassType subclassType() const { return LayerAndroid::IFrameContentLayer; } 56 57 // Scrolls to the given position in the layer. 58 // Returns whether or not any scrolling was required. 59 virtual bool scrollTo(int x, int y); 60 61 // Fills the rect with the current scroll offset and the maximum scroll offset. 62 // fLeft = scrollX 63 // fTop = scrollY 64 // fRight = maxScrollX 65 // fBottom = maxScrollY 66 virtual void getScrollRect(SkIRect*) const; 67 68 void setIFrameScrollOffset(IntPoint offset) { m_iframeScrollOffset = offset; } 69 70 private: 71 IntPoint m_iframeScrollOffset; 72 }; 73 74 } 75 76 #endif // USE(ACCELERATED_COMPOSITING) 77 78 #endif // IFrameContentLayerAndroid_h 79