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/* libs/WebKitLib/WebKit/platform/bridge/android/CacheBuilder.h
**
** Copyright 2006, 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 CacheBuilder_H
#define CacheBuilder_H
#include "CachedDebug.h"
#include "CachedNodeType.h"
#include "IntRect.h"
#include "PlatformString.h"
#include "TextDirection.h"
#include "wtf/Vector.h"
#define NAVIGATION_MAX_PHONE_LENGTH 14
namespace android {
class CachedFrame;
class CachedNode;
class CachedRoot;
}
namespace WebCore {
class Document;
class Frame;
class HTMLAreaElement;
class InlineTextBox;
class Node;
class PlatformGraphicsContext;
class RenderFlow;
class RenderImage;
class RenderObject;
class RenderLayer;
class Text;
class CacheBuilder {
public:
enum Direction {
UNINITIALIZED = -1,
LEFT,
RIGHT,
UP,
DOWN,
DIRECTION_COUNT,
UP_DOWN = UP & DOWN, // mask and result
RIGHT_DOWN = RIGHT & DOWN, // mask and result
};
enum FoundState {
FOUND_NONE,
FOUND_PARTIAL,
FOUND_COMPLETE
};
CacheBuilder();
void allowAllTextDetection() { mAllowableTypes = android::ALL_CACHEDNODETYPES; }
void buildCache(android::CachedRoot* root);
static bool ConstructPartRects(Node* node, const IntRect& bounds,
IntRect* focusBounds, int x, int y, WTF::Vector<IntRect>* result);
Node* currentFocus() const;
void disallowAddressDetection() { mAllowableTypes = (android::CachedNodeType) (
mAllowableTypes & ~android::ADDRESS_CACHEDNODETYPE); }
void disallowEmailDetection() { mAllowableTypes = (android::CachedNodeType) (
mAllowableTypes & ~android::EMAIL_CACHEDNODETYPE); }
void disallowPhoneDetection() { mAllowableTypes = (android::CachedNodeType) (
mAllowableTypes & ~android::PHONE_CACHEDNODETYPE); }
static FoundState FindAddress(const UChar* , unsigned length, int* start, int* end);
Node* findByCenter(int x, int y) const;
static void GetGlobalOffset(Frame* , int* x, int * y);
static void GetGlobalOffset(Node* , int* x, int * y);
bool outOfDate();
void setLastFocus(Node* );
bool validNode(void* framePtr, void* nodePtr) const;
private:
enum AddressProgress {
NO_ADDRESS,
SKIP_TO_SPACE,
HOUSE_NUMBER,
NUMBER_TRAILING_SPACE,
ADDRESS_LINE,
STATE_NAME,
SECOND_HALF,
ZIP_CODE,
PLUS_4,
FIND_STREET
};
struct NodeWalk {
NodeWalk() { reset(); }
int mStart;
int mEnd;
Node* mFinalNode;
InlineTextBox* mLastInline;
bool mMore;
void reset() { mMore = false; }
};
struct BoundsPart {
IntRect mRect;
int mStart;
int mEnd;
};
struct Bounds {
typedef bool (*FindText)(BoundsPart* result, InlineTextBox* , const String& match);
IntRect mNodeBounds;
BoundsPart mPart;
WTF::Vector<BoundsPart> mParts;
char mStore[NAVIGATION_MAX_PHONE_LENGTH + 1];
android::CachedNodeType mStoreType;
int mPartIndex;
Node* mNode;
Node* mFinalNode;
void reset() { mNode = NULL; }
};
struct FindState {
int mStartResult;
int mEndResult;
const UChar* mCurrentStart;
const UChar* mEnd;
AddressProgress mProgress;
int mNumberCount;
int mLetterCount;
unsigned mWordCount;
int mLineCount;
const UChar* mFirstLower;
const UChar* mZipStart;
const UChar* mBases[16]; // FIXME: random guess, maybe too small, maybe too big
const UChar* mWords[16];
const UChar* mStarts[16]; // text is not necessarily contiguous
const char* mStates;
int mEndWord;
int mStateWord;
int mZipHint;
int mSectionLength;
unsigned mNumberWords; // must contain as many bits as mWords contains elements
char* mPattern;
UChar mStore[NAVIGATION_MAX_PHONE_LENGTH + 1];
UChar* mStorePtr;
UChar mBackOne;
UChar mBackTwo;
UChar mCurrent;
bool mUnparsed;
bool mZipDelimiter;
bool mOpenParen;
bool mInitialized;
bool mContinuationNode;
};
struct ClipColumnTracker {
IntRect mBounds;
Node* mLastChild;
Node* mNode;
WTF::Vector<IntRect>* mColumns;
int mColumnGap;
TextDirection mDirection;
bool mHasClip;
};
struct Tracker {
int mCachedNodeIndex;
Node* mLastChild;
Node* mParentLastChild;
bool mSomeParentTakesFocus;
};
void adjustForColumns(const ClipColumnTracker& track,
android::CachedNode* node, IntRect* bounds);
static bool AddPartRect(IntRect& bounds, int x, int y,
WTF::Vector<IntRect>* result, IntRect* focusBounds);
static bool AnyIsClick(Node* node);
static bool AnyChildIsClick(Node* node);
void BuildFrame(Frame* root, Frame* frame,
android::CachedRoot* cachedRoot, android::CachedFrame* cachedFrame);
bool CleanUpContainedNodes(android::CachedFrame* cachedFrame,
const Tracker* last, int lastChildIndex);
static bool ConstructTextRect(Text* textNode,
InlineTextBox* textBox, int start, int relEnd, int x, int y,
IntRect* focusBounds, const IntRect& clip, WTF::Vector<IntRect>* result);
static bool ConstructTextRects(Text* node, int start,
Text* last, int end, int x, int y, IntRect* focusBounds,
const IntRect& clip, WTF::Vector<IntRect>* result);
static FoundState FindPartialAddress(const UChar* , const UChar* , unsigned length, FindState* );
static FoundState FindPartialEMail(const UChar* , unsigned length, FindState* );
static FoundState FindPartialNumber(const UChar* , unsigned length, FindState* );
static FoundState FindPhoneNumber(const UChar* chars, unsigned length, int* start, int* end);
static void FindReset(FindState* );
static void FindResetNumber(FindState* );
static Frame* FrameAnd(CacheBuilder* focusNav);
static Frame* FrameAnd(const CacheBuilder* focusNav);
static CacheBuilder* Builder(Frame* );
IntRect getAreaRect(const HTMLAreaElement* area) const;
static Frame* HasFrame(Node* );
static bool HasOverOrOut(Node* );
static bool HasTriggerEvent(Node* );
static bool IsDomainChar(UChar ch);
bool isFocusableText(NodeWalk* , bool oldMore, Node* , android::CachedNodeType* type,
String* exported) const; //returns true if it is focusable
static bool IsMailboxChar(UChar ch);
static bool IsRealNode(Frame* , Node* );
int overlap(int left, int right); // returns distance scale factor as 16.16 scalar
bool setData(android::CachedFrame* );
Node* tryFocus(Direction direction);
Node* trySegment(Direction direction, int mainStart, int mainEnd);
Node* mLastKnownFocus;
IntRect mLastKnownFocusBounds;
android::CachedNodeType mAllowableTypes;
WTF::HashMap<const HTMLAreaElement* , RenderImage* > m_areaBoundsMap;
#if DUMP_NAV_CACHE
public:
class Debug {
public:
void frameName(char*& namePtr, const char* max) const;
void init(char* buffer, size_t size);
static int ParentIndex(Node* node, int count, Node* parent);
void print() { frames(); }
void print(const char* name);
void wideString(const String& str);
private:
void attr(const AtomicString& name, const AtomicString& value);
void comma(const char* str);
int flowBoxes(RenderFlow* flow, int ifIndex, int indent);
void flush();
Frame* frameAnd() const;
void frames();
void groups();
bool isFocusable(Node* node);
void localName(Node* node);
void newLine(int indent = 0);
void print(const char* name, unsigned len);
void renderTree(RenderObject* , int indent, Node* , int count);
void setIndent(int );
void uChar(const UChar* name, unsigned len, bool hex);
void validateFrame();
void validateStringData();
void wideString(const UChar* chars, int length, bool hex);
char* mBuffer;
size_t mBufferSize;
int mIndex;
const char* mPrefix;
int mMinPrefix;
} mDebug;
#endif
};
}
#endif
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