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Diffstat (limited to 'WebKit/android/nav/CachedNode.h')
| -rw-r--r-- | WebKit/android/nav/CachedNode.h | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/WebKit/android/nav/CachedNode.h b/WebKit/android/nav/CachedNode.h new file mode 100644 index 0000000..aa64982 --- /dev/null +++ b/WebKit/android/nav/CachedNode.h @@ -0,0 +1,235 @@ +/* + * Copyright 2007, The Android Open Source Project + * + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CachedNode_H +#define CachedNode_H + +#include "AtomicString.h" +#include "CachedDebug.h" +#include "CachedNodeType.h" +#include "IntRect.h" +#include "PlatformString.h" +#include "wtf/Vector.h" + +namespace WebCore { + class Node; +} + +namespace android { + +class CachedFrame; + +class CachedNode { +public: +// Nodes are rejected because either they are spacially not the best (first set) +// or because they have the wrong DOM attribute (in focus, a focused child, etc) +// findClosest() gives only spacially rejected nodes a second chance + enum Condition { // if bigger than 32, increase bitfield size below + // rejections that get a second chance + NOT_REJECTED = 0, + SECOND_CHANCE_START = NOT_REJECTED, // must be first in list + BUTTED_UP, + CENTER_FURTHER, + CLOSER, + CLOSER_IN_FOCUS, + CLOSER_OVERLAP, + CLOSER_TOP, + FOCUSABLE, + FURTHER, + IN_UMBRA, + IN_WORKING, + LEFTMOST, + OVERLAP_OR_EDGE_FURTHER, + PREFERRED, // better overlap measure + SECOND_CHANCE_END = PREFERRED, // must be last in list + // rejections that don't get a second chance + ANCHOR_IN_ANCHOR, + BEST_DIRECTION, // can be reached by another direction + CHILD, + DISABLED, + HIGHER_TAB_INDEX, + IN_FOCUS, + IN_FOCUS_CHILDREN, + NOT_ENCLOSING_FOCUS, + // NOT_FOCUS_CHILD, + NOT_FOCUS_NODE, + OUTSIDE_OF_BEST, // containership + OUTSIDE_OF_ORIGINAL, // containership + CONDITION_SIZE // FIXME: test that CONDITION_SIZE fits in mCondition + }; + CachedNode() { + // The node is initiaized to 0 in its array, so nothing to do in the + // constructor + } + + const WebCore::IntRect& bounds() const { return mBounds; } + WebCore::IntRect* boundsPtr() { return &mBounds; } + int childFrameIndex() const { return mChildFrameIndex; } + void clearCondition() const { mCondition = NOT_REJECTED; } + void clearFocus(CachedFrame* ); + static bool Clip(const WebCore::IntRect& outer, WebCore::IntRect* inner, + WTF::Vector<WebCore::IntRect>* rings); + bool clip(const WebCore::IntRect& ); + bool clippedOut() { return mClippedOut; } + bool disabled() const { return mDisabled; } + const CachedNode* document() const { return &this[-mIndex]; } + void fixUpFocusRects(); + void focusRingBounds(WebCore::IntRect* ) const; + WTF::Vector<WebCore::IntRect>& focusRings() { return mFocusRing; } + const WTF::Vector<WebCore::IntRect>& focusRings() const { return mFocusRing; } + const WebCore::IntRect& getBounds() const { return mBounds; } + void getBounds(WebCore::IntRect* bounds) const { *bounds = mBounds; } + const WebCore::String& getExport() const { return mExport; } + bool hasFocusRing() const { return mHasFocusRing; } + bool hasMouseOver() const { return mHasMouseOver; } + const WebCore::IntRect& hitBounds() const { return mHitBounds; } + int index() const { return mIndex; } + void init(WebCore::Node* node); + bool isAnchor() const { return mIsAnchor; } + bool isArea() const { return mIsArea; } + bool isFocus() const { return mIsFocus; } + bool isFocusable(const WebCore::IntRect& clip) const { + return clip.intersects(mBounds); + } + bool isFrame() const { return mChildFrameIndex >= 0 ; } + bool isInput() const { return mIsInput; } + bool isPassword() const { return mIsPassword; } + bool isRtlText() const { return mIsRtlText; } + bool isTextArea() const { return mIsTextArea; } + bool isTextField() const { return mIsTextField; } + bool isTransparent() const { return mIsTransparent; } + bool isUnclipped() const { return mIsUnclipped; } + bool isWantsKeyEvents() const { return mWantsKeyEvents; } + + int maxLength() const { return mMaxLength; }; + void move(int x, int y); + const WebCore::String& name() const { return mName; } + int navableRects() const { return mNavableRects; } + void* nodePointer() const { return mNode; } + bool noSecondChance() const { return mCondition > SECOND_CHANCE_END; } + const CachedNode* parent() const { return document() + mParentIndex; } + void* parentGroup() const { return mParentGroup; } + int parentIndex() const { return mParentIndex; } + bool partRectsContains(const CachedNode* other) const; + void reset(); + void setBounds(const WebCore::IntRect& bounds) { mBounds = bounds; } + void setChildFrameIndex(int index) { mChildFrameIndex = index; } + void setClippedOut(bool clipped) { mClippedOut = clipped; } + void setCondition(Condition condition) const { mCondition = condition; } + void setDisabled(bool disabled) { mDisabled = disabled; } + void setExport(const WebCore::String& exported) { mExport = exported; } + void setHasFocusRing(bool hasFocusRing) { mHasFocusRing = hasFocusRing; } + void setHasMouseOver(bool hasMouseOver) { mHasMouseOver = hasMouseOver; } + void setHitBounds(const WebCore::IntRect& bounds) { mHitBounds = bounds; } + void setIndex(int index) { mIndex = index; } + void setIsAnchor(bool isAnchor) { mIsAnchor = isAnchor; } + void setIsArea(bool isArea) { mIsArea = isArea; } + void setIsFocus(bool isFocus) { mIsFocus = isFocus; } + void setIsInput(bool isInput) { mIsInput = isInput; } + void setIsParentAnchor(bool isAnchor) { mIsParentAnchor = isAnchor; } + void setIsPassword(bool isPassword) { mIsPassword = isPassword; } + void setIsRtlText(bool isRtlText) { mIsRtlText = isRtlText; } + void setIsTextArea(bool isTextArea) { mIsTextArea = isTextArea; } + void setIsTextField(bool isTextField) { mIsTextField = isTextField; } + void setIsTransparent(bool isTransparent) { mIsTransparent = isTransparent; } + void setIsUnclipped(bool unclipped) { mIsUnclipped = unclipped; } + void setLast() { mLast = true; } + void setMaxLength(int maxLength) { mMaxLength = maxLength; } + void setName(const WebCore::String& name) { mName = name; } + void setNavableRects() { mNavableRects = mFocusRing.size(); } + void setParentGroup(void* group) { mParentGroup = group; } + void setParentIndex(int parent) { mParentIndex = parent; } + void setTabIndex(int index) { mTabIndex = index; } + void setTextSize(int textSize) { mTextSize = textSize; } + void setType(CachedNodeType type) { mType = type; } + void setWantsKeyEvents(bool wantsKeys) { mWantsKeyEvents = wantsKeys; } + int tabIndex() const { return mTabIndex; } + const CachedNode* traverseNextNode() const { return mLast ? NULL : &this[1]; } + int textSize() const { return mTextSize; } + CachedNodeType type() const { return mType; } +private: + WebCore::String mExport; + WebCore::String mName; + WebCore::IntRect mBounds; + WebCore::IntRect mHitBounds; + WTF::Vector<WebCore::IntRect> mFocusRing; + void* mNode; // WebCore::Node*, only used to match pointers + void* mParentGroup; // WebCore::Node*, only used to match pointers + int mChildFrameIndex; // set to -1 if node is not a frame + int mIndex; // index of itself, to find first in array (document) + int mMaxLength; + int mNavableRects; // FIXME: could be bitfield once I limit max number of rects + int mParentIndex; + int mTextSize; + int mTabIndex; + mutable Condition mCondition : 5; // why the node was not chosen on the first pass + CachedNodeType mType : 3; + bool mClippedOut : 1; + bool mDisabled : 1; + bool mFixedUpFocusRects : 1; + bool mHasFocusRing : 1; + bool mHasMouseOver : 1; + bool mIsAnchor : 1; + bool mIsArea : 1; + bool mIsFocus : 1; + bool mIsInput : 1; + bool mIsParentAnchor : 1; + bool mIsPassword : 1; + bool mIsRtlText : 1; + bool mIsTextArea : 1; + bool mIsTextField : 1; + bool mIsTransparent : 1; + bool mIsUnclipped : 1; + bool mLast : 1; // true if this is the last node in a group + bool mWantsKeyEvents : 1; // true for nodes like plugins +#ifdef BROWSER_DEBUG +public: + WebCore::Node* webCoreNode() const { return (WebCore::Node*) mNode; } + bool mDisplayMeasure; + mutable bool mInCompare; + // mutable int mCondition; + int mSideDistance; + int mSecondSide; +#endif +#if DEBUG_NAV_UI || DUMP_NAV_CACHE +public: + class Debug { +public: + CachedNode* base() const; + const char* condition(Condition t) const; + void print() const; + const char* type(CachedNodeType t) const; +#if DUMP_NAV_CACHE + int mNodeIndex; + int mParentGroupIndex; +#endif + } mDebug; + friend class CachedNode::Debug; +#endif +}; + +} + +#endif |