1 /* 2 * Copyright 2007, 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 CachedRoot_h 27 #define CachedRoot_h 28 29 #include "CachedFrame.h" 30 #include "IntRect.h" 31 #include "SkPicture.h" 32 #include "SkRegion.h" 33 #include "wtf/Vector.h" 34 35 class SkRect; 36 37 namespace WebCore { 38 class LayerAndroid; 39 } 40 41 namespace android { 42 43 class CachedHistory; 44 class CachedNode; 45 class FindCanvas; 46 47 class CachedRoot : public CachedFrame { 48 public: 49 bool adjustForScroll(BestData* , Direction , WebCore::IntPoint* scrollPtr, 50 bool findClosest); baseUncovered()51 const SkRegion& baseUncovered() const { return mBaseUncovered; } 52 void calcBitBounds(const IntRect& , IntRect* ) const; 53 int checkForCenter(int x, int y) const; 54 void checkForJiggle(int* ) const; 55 bool checkRings(SkPicture* , const CachedNode* , 56 const WebCore::IntRect& testBounds) const; 57 WebCore::IntPoint cursorLocation() const; documentHeight()58 int documentHeight() { return mContents.height(); } documentWidth()59 int documentWidth() { return mContents.width(); } 60 void draw(FindCanvas& ) const; 61 const CachedNode* findAt(const WebCore::IntRect& , const CachedFrame** , 62 int* x, int* y, bool checkForHidden) const; focusBounds()63 const WebCore::IntRect& focusBounds() const { return mFocusBounds; } 64 WebCore::IntPoint focusLocation() const; 65 int getAndResetSelectionEnd(); 66 int getAndResetSelectionStart(); 67 int getBlockLeftEdge(int x, int y, float scale) const; 68 void getSimulatedMousePosition(WebCore::IntPoint* ) const; 69 void init(WebCore::Frame* , CachedHistory* ); 70 bool innerDown(const CachedNode* , BestData* ) const; 71 bool innerLeft(const CachedNode* , BestData* ) const; 72 void innerMove(const CachedNode* ,BestData* bestData, Direction , 73 WebCore::IntPoint* scroll, bool firstCall); 74 bool innerRight(const CachedNode* , BestData* ) const; 75 bool innerUp(const CachedNode* , BestData* ) const; 76 WTF::String imageURI(int x, int y) const; 77 bool maskIfHidden(BestData* ) const; 78 const CachedNode* moveCursor(Direction , const CachedFrame** , WebCore::IntPoint* scroll); 79 /** 80 * Find the next textfield/textarea 81 * @param start The textfield/textarea to search from. 82 * @param framePtr If non-zero, returns CachedFrame* containing result. 83 * @return CachedNode* Next textfield/textarea or null (0) if none. 84 */ 85 const CachedNode* nextTextField(const CachedNode* start, 86 const CachedFrame** framePtr) const; 87 SkPicture* pictureAt(int* xPtr, int* yPtr, int* id) const; pictureAt(int * xPtr,int * yPtr)88 SkPicture* pictureAt(int* xPtr, int* yPtr) const { 89 return pictureAt(xPtr, yPtr, 0); } 90 void reset(); rootHistory()91 CachedHistory* rootHistory() const { return mHistory; } rootLayer()92 WebCore::LayerAndroid* rootLayer() const { return mRootLayer; } 93 bool scrollDelta(WebCore::IntRect& cursorRingBounds, Direction , int* delta); scrolledBounds()94 const WebCore::IntRect& scrolledBounds() const { return mScrolledBounds; } 95 void setCursor(CachedFrame* , CachedNode* ); 96 void setCursorCache(int scrollX, int scrollY) const; // compute cached state used to find next cursor 97 void setCachedFocus(CachedFrame* , CachedNode* ); setFocusBounds(const WebCore::IntRect & r)98 void setFocusBounds(const WebCore::IntRect& r) { mFocusBounds = r; } setTextGeneration(int textGeneration)99 void setTextGeneration(int textGeneration) { mTextGeneration = textGeneration; } setMaxScroll(int x,int y)100 void setMaxScroll(int x, int y) { mMaxXScroll = x; mMaxYScroll = y; } setPicture(SkPicture * picture)101 void setPicture(SkPicture* picture) { mPicture = picture; } setRootLayer(WebCore::LayerAndroid * layer)102 void setRootLayer(WebCore::LayerAndroid* layer) { 103 mRootLayer = layer; 104 resetLayers(); 105 } setScrollOnly(bool state)106 void setScrollOnly(bool state) { mScrollOnly = state; } setSelection(int start,int end)107 void setSelection(int start, int end) { mSelectionStart = start; mSelectionEnd = end; } setupScrolledBounds()108 void setupScrolledBounds() const { mScrolledBounds = mViewBounds; } setVisibleRect(const WebCore::IntRect & r)109 void setVisibleRect(const WebCore::IntRect& r) { mViewBounds = r; } textGeneration()110 int textGeneration() const { return mTextGeneration; } width()111 int width() const { return mPicture ? mPicture->width() : 0; } 112 private: 113 friend class CachedFrame; 114 CachedHistory* mHistory; 115 SkPicture* mPicture; 116 WebCore::LayerAndroid* mRootLayer; 117 WebCore::IntRect mFocusBounds; // dom text input focus node bounds 118 mutable WebCore::IntRect mScrolledBounds; // view bounds + amount visible as result of scroll 119 int mTextGeneration; 120 int mMaxXScroll; 121 int mMaxYScroll; 122 // These two are ONLY used when the tree is rebuilt and the focus is a textfield/area 123 int mSelectionStart; 124 int mSelectionEnd; 125 // these four set up as cache for use by frameDown/Up/Left/Right etc 126 mutable WebCore::IntRect mCursorBounds; 127 mutable const CachedNode* mCursor; 128 mutable SkRegion mBaseUncovered; 129 bool mScrollOnly; 130 #if DUMP_NAV_CACHE 131 public: 132 class Debug { 133 public: 134 CachedRoot* base() const; 135 void print() const; 136 } mDebug; 137 #endif 138 }; 139 140 } 141 142 #endif 143