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-rw-r--r--WebCore/platform/android/nav/CachedFrame.h220
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diff --git a/WebCore/platform/android/nav/CachedFrame.h b/WebCore/platform/android/nav/CachedFrame.h
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index c7b1327..0000000
--- a/WebCore/platform/android/nav/CachedFrame.h
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-/*
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-** http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#ifndef CachedFrame_H
-#define CachedFrame_H
-
-#include "CachedNode.h"
-#include "IntRect.h"
-#include "SkFixed.h"
-#include "wtf/Vector.h"
-
-namespace WebCore {
- class Frame;
- class FrameAndroid;
- class Node;
-}
-
-namespace android {
-
-class CachedHistory;
-class CachedRoot;
-
- // first node referenced by cache is always document
-class CachedFrame {
-public:
- enum Direction {
- UNINITIALIZED = -1,
- LEFT,
- RIGHT,
- UP,
- DOWN,
- DIRECTION_COUNT,
- DIRECTION_MASK = DIRECTION_COUNT - 1,
- UP_DOWN = UP & DOWN, // mask and result
- RIGHT_DOWN = RIGHT & DOWN, // mask and result
- };
- enum Compare {
- UNDECIDED = -1,
- TEST_IS_BEST,
- REJECT_TEST
- };
- CachedFrame() {}
- void add(CachedNode& node) { mCachedNodes.append(node); }
- void addFrame(CachedFrame& child) { mCachedFrames.append(child); }
- bool checkVisited(const CachedNode* , CachedFrame::Direction ) const;
- size_t childCount() { return mCachedFrames.size(); }
- void clearFocus();
- bool containsFrame(const CachedFrame* ) const;
- const CachedNode* currentFocus() const { return currentFocus(NULL); }
- const CachedNode* currentFocus(const CachedFrame** ) const;
- bool directionChange() const;
- const CachedNode* document() const { return mCachedNodes.begin(); }
- bool empty() const { return mCachedNodes.size() < 2; } // must have 1 past doc
- const CachedNode* findBestAt(const WebCore::IntRect& , int* best,
- const CachedNode** , const CachedFrame** , int* x, int* y) const;
- const CachedFrame* findBestFrameAt(int x, int y) const;
- const CachedNode* findBestHitAt(const WebCore::IntRect& ,
- int* best, const CachedFrame** , int* x, int* y) const;
- bool finishInit();
- CachedFrame* firstChild() { return mCachedFrames.begin(); }
- const CachedFrame* firstChild() const { return mCachedFrames.begin(); }
- int focusIndex() const { return mFocus; }
- void* framePointer() const { return mFrame; }
- CachedNode* getIndex(int index) { return index >= 0 ?
- &mCachedNodes[index] : NULL; }
- const CachedFrame* hasFrame(const CachedNode* node) const;
- int indexInParent() const { return mIndex; }
- void init(const CachedRoot* root, int index, WebCore::FrameAndroid* frame);
- const CachedFrame* lastChild() const { return &mCachedFrames.last(); }
- CachedNode* lastNode() { return &mCachedNodes.last(); }
- CachedFrame* lastChild() { return &mCachedFrames.last(); }
- const CachedFrame* parent() const { return mParent; }
- CachedFrame* parent() { return mParent; }
- void removeLast() { mCachedNodes.removeLast(); }
- void resetClippedOut();
- void setContentsSize(int width, int height) { mContents.setWidth(width);
- mContents.setHeight(height); }
- void setData();
- bool setFocus(WebCore::Frame* , WebCore::Node* , int x, int y);
- void setFocusIndex(int focusIndex) const { mFocus = focusIndex; }
- void setLocalViewBounds(const WebCore::IntRect& bounds) { mLocalViewBounds = bounds; }
- int size() { return mCachedNodes.size(); }
- const CachedNode* validDocument() const;
-protected:
- struct BestData {
- WebCore::IntRect mNodeBounds;
- WebCore::IntRect mMouseBounds;
- int mDistance;
- int mSideDistance;
- int mMajorDelta; // difference of center of object
- // used only when leading and trailing edges contain another set of edges
- int mMajorDelta2; // difference of leading edge (only used when center is same)
- int mMajorButt; // checks for next cell butting up against or close to previous one
- int mWorkingDelta;
- int mWorkingDelta2;
- int mNavDelta;
- int mNavDelta2;
- const CachedFrame* mFrame;
- const CachedNode* mNode;
- SkFixed mWorkingOverlap; // this and below are fuzzy answers instead of bools
- SkFixed mNavOverlap;
- SkFixed mPreferred;
- bool mFocusChild;
- bool mInNav;
- bool mNavOutside;
- bool mWorkingOutside;
- int bottom() const { return bounds().bottom(); }
- const WebCore::IntRect& bounds() const { return mNodeBounds; }
- bool canBeReachedByAnotherDirection();
- int height() const { return bounds().height(); }
- bool inOrSubsumesNav() const { return (mNavDelta ^ mNavDelta2) >= 0; }
- bool inOrSubsumesWorking() const { return (mWorkingDelta ^ mWorkingDelta2) >= 0; }
- int isContainer(BestData* );
- static SkFixed Overlap(int span, int left, int right);
- void reset() { mNode = NULL; }
- int right() const { return bounds().right(); }
- void setDistances();
- bool setDownDirection(const CachedHistory* );
- bool setLeftDirection(const CachedHistory* );
- bool setRightDirection(const CachedHistory* );
- bool setUpDirection(const CachedHistory* );
- void setNavInclusion(int left, int right);
- void setNavOverlap(int span, int left, int right);
- void setWorkingInclusion(int left, int right);
- void setWorkingOverlap(int span, int left, int right);
- int width() const { return bounds().width(); }
- int x() const { return bounds().x(); }
- int y() const { return bounds().y(); }
- };
- typedef const CachedNode* (CachedFrame::*MoveInDirection)(
- const CachedNode* test, const CachedNode* limit, BestData* bestData,
- const CachedNode* focus) const;
- void adjustToTextColumn(int* delta) const;
- static bool CheckBetween(Direction , const WebCore::IntRect& bestRect,
- const WebCore::IntRect& prior, WebCore::IntRect* result);
- bool checkBetween(BestData* , Direction );
- int compare(BestData& testData, const BestData& bestData, const
- CachedNode* focus) const;
- void findClosest(BestData* , Direction original, Direction test,
- WebCore::IntRect* clip) const;
- int frameNodeCommon(BestData& testData, const CachedNode* test,
- BestData* bestData, BestData* originalData,
- const CachedNode* focus) const;
- int framePartCommon(BestData& testData, const CachedNode* test,
- BestData* bestData, const CachedNode* focus) const;
- const CachedNode* frameDown(const CachedNode* test, const CachedNode* limit,
- BestData* , const CachedNode* focus) const;
- const CachedNode* frameLeft(const CachedNode* test, const CachedNode* limit,
- BestData* , const CachedNode* focus) const;
- const CachedNode* frameRight(const CachedNode* test, const CachedNode* limit,
- BestData* , const CachedNode* focus) const;
- const CachedNode* frameUp(const CachedNode* test, const CachedNode* limit,
- BestData* , const CachedNode* focus) const;
- int minWorkingHorizontal() const;
- int minWorkingVertical() const;
- int maxWorkingHorizontal() const;
- int maxWorkingVertical() const;
- bool moveInFrame(MoveInDirection , const CachedNode* test, BestData* best,
- const CachedNode* focus) const;
- const WebCore::IntRect& _navBounds() const;
- WebCore::IntRect mContents;
- WebCore::IntRect mLocalViewBounds;
- WebCore::IntRect mViewBounds;
- WTF::Vector<CachedNode> mCachedNodes;
- WTF::Vector<CachedFrame> mCachedFrames;
- void* mFrame; // WebCore::Frame*, used only to compare pointers
- CachedFrame* mParent;
- int mIndex; // index within parent's array of children, or -1 if root
- const CachedRoot* mRoot;
- mutable int mFocus;
-private:
- CachedHistory* history() const;
-#ifdef BROWSER_DEBUG
-public:
- CachedNode* find(WebCore::Node* ); // !!! probably debugging only
- int mDebugIndex;
- int mDebugLoopbackOffset;
-#endif
-#if !defined NDEBUG || DUMP_NAV_CACHE
-public:
- class Debug {
-public:
- Debug() {
-#if DUMP_NAV_CACHE
- mFrameName[0] = '\0';
-#endif
-#if !defined NDEBUG
- mInUse = true;
-#endif
- }
-#if !defined NDEBUG
- ~Debug() { mInUse = false; }
- bool mInUse;
-#endif
-#if DUMP_NAV_CACHE
- CachedFrame* base() const;
- void print() const;
- bool validate(const CachedNode* ) const;
- char mFrameName[256];
-#endif
- } mDebug;
-#endif
-};
-
-}
-
-#endif
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