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|
/*
* 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.
*/
#include "CachedPrefix.h"
#include "CachedHistory.h"
#include "CachedNode.h"
#include "CachedRoot.h"
#include "CachedFrame.h"
#define OFFSETOF(type, field) ((char*)&(((type*)1)->field) - (char*)1) // avoids gnu warning
#define MIN_OVERLAP 3 // if rects overlap by 2 pixels or fewer, treat them as non-intersecting
namespace android {
bool CachedFrame::CheckBetween(Direction direction, const WebCore::IntRect& bestRect,
const WebCore::IntRect& prior, WebCore::IntRect* result)
{
int left, top, width, height;
if (direction & UP_DOWN) {
top = direction == UP ? bestRect.bottom() : prior.bottom();
int bottom = direction == UP ? prior.y() : bestRect.y();
height = bottom - top;
if (height < 0)
return false;
left = prior.x();
int testLeft = bestRect.x();
if (left > testLeft)
left = testLeft;
int right = prior.right();
int testRight = bestRect.right();
if (right < testRight)
right = testRight;
width = right - left;
} else {
left = direction == LEFT ? bestRect.right() : prior.right();
int right = direction == LEFT ? prior.x() : bestRect.x();
width = right - left;
if (width < 0)
return false;
top = prior.y();
int testTop = bestRect.y();
if (top > testTop)
top = testTop;
int bottom = prior.bottom();
int testBottom = bestRect.bottom();
if (bottom < testBottom)
bottom = testBottom;
height = bottom - top;
}
*result = WebCore::IntRect(left, top, width, height);
return true;
}
bool CachedFrame::checkBetween(BestData* best, Direction direction)
{
const WebCore::IntRect& bestRect = best->bounds();
BestData test;
test.mDistance = INT_MAX;
test.mNode = NULL;
int index = direction;
int limit = index + DIRECTION_COUNT;
do {
WebCore::IntRect edges;
Direction check = (Direction) (index & DIRECTION_MASK);
if (CheckBetween(check, bestRect,
history()->priorBounds(), &edges) == false)
continue;
WebCore::IntRect clip = mRoot->scrolledBounds();
clip.intersect(edges);
if (clip.isEmpty())
continue;
findClosest(&test, direction, check, &clip);
if (test.mNode == NULL)
continue;
if (direction == check)
break;
} while (++index < limit);
if (test.mNode == NULL)
return false;
*best = test;
return true;
}
bool CachedFrame::checkVisited(const CachedNode* node, Direction direction) const
{
return history()->checkVisited(node, direction);
}
void CachedFrame::clearCursor()
{
DBG_NAV_LOGD("mCursorIndex=%d", mCursorIndex);
if (mCursorIndex < CURSOR_SET)
return;
CachedNode& cursor = mCachedNodes[mCursorIndex];
cursor.clearCursor(this);
mCursorIndex = CURSOR_CLEARED; // initialized and explicitly cleared
}
// returns 0 if test is preferable to best, 1 if not preferable, or -1 if unknown
int CachedFrame::compare(BestData& testData, const BestData& bestData,
const CachedNode* cursor) const
{
if (testData.mNode->tabIndex() != bestData.mNode->tabIndex()) {
if (testData.mNode->tabIndex() < bestData.mNode->tabIndex()
|| (cursor && cursor->tabIndex() < bestData.mNode->tabIndex())) {
testData.mNode->setCondition(CachedNode::HIGHER_TAB_INDEX);
return REJECT_TEST;
}
return TEST_IS_BEST;
}
// if the test minor axis line intersects the line segment between cursor
// center and best center, choose it
// give more weight to exact major axis alignment (rows, columns)
if (testData.mInNav != bestData.mInNav) {
if (bestData.mInNav) {
testData.mNode->setCondition(CachedNode::IN_CURSOR);
return REJECT_TEST;
}
return TEST_IS_BEST;
}
if (testData.mInNav) {
if (bestData.mMajorDelta < testData.mMajorDelta) {
testData.mNode->setCondition(CachedNode::CLOSER_IN_CURSOR);
return REJECT_TEST;
}
if (testData.mMajorDelta < bestData.mMajorDelta)
return TEST_IS_BEST;
}
if (testData.mMajorDelta < 0 && bestData.mMajorDelta >= 0) {
testData.mNode->setCondition(CachedNode::FURTHER);
return REJECT_TEST;
}
if ((testData.mMajorDelta ^ bestData.mMajorDelta) < 0) // one above, one below (or one left, one right)
return TEST_IS_BEST;
bool bestInWorking = bestData.inOrSubsumesWorking();
bool testInWorking = testData.inOrSubsumesWorking();
if (bestInWorking && testData.mWorkingOutside && testData.mNavOutside) {
testData.mNode->setCondition(CachedNode::IN_WORKING);
return REJECT_TEST;
}
if (testInWorking && bestData.mWorkingOutside && bestData.mNavOutside)
return TEST_IS_BEST;
bool bestInNav = directionChange() && bestData.inOrSubsumesNav();
bool testInNav = directionChange() && testData.inOrSubsumesNav();
if (bestInWorking == false && testInWorking == false) {
if (bestInNav && testData.mNavOutside) {
testData.mNode->setCondition(CachedNode::IN_UMBRA);
return REJECT_TEST;
}
if (testInNav && bestData.mNavOutside)
return TEST_IS_BEST;
}
#if 01 // hopefully butt test will remove need for this
if (testData.mCursorChild != bestData.mCursorChild) {
if (bestData.mCursorChild) {
testData.mNode->setCondition(CachedNode::IN_CURSOR_CHILDREN);
return REJECT_TEST;
}
return TEST_IS_BEST;
}
#endif
bool bestTestIn = (bestInWorking || bestInNav) && (testInWorking || testInNav);
bool testOverlap = bestTestIn || (testData.mWorkingOverlap != 0 && bestData.mWorkingOverlap == 0);
bool bestOverlap = bestTestIn || (testData.mWorkingOverlap == 0 && bestData.mWorkingOverlap != 0);
#if 01 // this isn't working?
if (testOverlap == bestOverlap) {
if (bestData.mMajorButt < 10 && testData.mMajorButt >= 40) {
testData.mNode->setCondition(CachedNode::BUTTED_UP);
return REJECT_TEST;
}
if (testData.mMajorButt < 10 && bestData.mMajorButt >= 40)
return TEST_IS_BEST;
}
#endif
if (bestOverlap && bestData.mMajorDelta < testData.mMajorDelta) { // choose closest major axis center
testData.mNode->setCondition(CachedNode::CLOSER);
return REJECT_TEST;
}
if (testOverlap && testData.mMajorDelta < bestData.mMajorDelta)
return TEST_IS_BEST;
if (bestOverlap && bestData.mMajorDelta2 < testData.mMajorDelta2) {
testData.mNode->setCondition(CachedNode::CLOSER_TOP);
return REJECT_TEST;
}
if (testOverlap && testData.mMajorDelta2 < bestData.mMajorDelta2)
return TEST_IS_BEST;
#if 01
if (bestOverlap && ((bestData.mSideDistance <= 0 && testData.mSideDistance > 0) ||
abs(bestData.mSideDistance) < abs(testData.mSideDistance))) {
testData.mNode->setCondition(CachedNode::LEFTMOST);
return REJECT_TEST;
}
if (testOverlap && ((testData.mSideDistance <= 0 && bestData.mSideDistance > 0) ||
abs(testData.mSideDistance) < abs(bestData.mSideDistance)))
return TEST_IS_BEST;
// fix me : the following ASSERT fires -- not sure if this case should be handled or not
// ASSERT(bestOverlap == false && testOverlap == false);
#endif
SkFixed testMultiplier = testData.mWorkingOverlap > testData.mNavOverlap ?
testData.mWorkingOverlap : testData.mNavOverlap;
SkFixed bestMultiplier = bestData.mWorkingOverlap > bestData.mNavOverlap ?
bestData.mWorkingOverlap : bestData.mNavOverlap;
int testDistance = testData.mDistance;
int bestDistance = bestData.mDistance;
// start here;
// this fails if they're off by 1
// try once again to implement sliding scale so that off by 1 is nearly like zero,
// and off by a lot causes sideDistance to have little or no effect
// try elliptical distance -- lengthen side contribution
// these ASSERTs should not fire, but do fire on mail.google.com
// can't debug yet, won't reproduce
ASSERT(testDistance >= 0);
ASSERT(bestDistance >= 0);
testDistance += testDistance; // multiply by 2
testDistance *= testDistance;
bestDistance += bestDistance; // multiply by 2
bestDistance *= bestDistance;
int side = testData.mSideDistance;
int negative = side < 0 && bestData.mSideDistance > 0;
side *= side;
if (negative)
side = -side;
testDistance += side;
side = bestData.mSideDistance;
negative = side < 0 && testData.mSideDistance > 0;
side *= side;
if (negative)
side = -side;
bestDistance += side;
if (testMultiplier > (SK_Fixed1 >> 1) || bestMultiplier > (SK_Fixed1 >> 1)) { // considerable working overlap?
testDistance = SkFixedMul(testDistance, bestMultiplier);
bestDistance = SkFixedMul(bestDistance, testMultiplier);
}
if (bestDistance < testDistance) {
testData.mNode->setCondition(CachedNode::CLOSER_OVERLAP);
return REJECT_TEST;
}
if (testDistance < bestDistance)
return TEST_IS_BEST;
#if 0
int distance = testData.mDistance + testData.mSideDistance;
int best = bestData.mDistance + bestData.mSideDistance;
if (distance > best) {
testData.mNode->setCondition(CachedNode::CLOSER_RAW_DISTANCE);
return REJECT_TEST;
}
else if (distance < best)
return TEST_IS_BEST;
best = bestData.mSideDistance;
if (testData.mSideDistance > best) {
testData.mNode->setCondition(CachedNode::SIDE_DISTANCE);
return REJECT_TEST;
}
if (testData.mSideDistance < best)
return TEST_IS_BEST;
#endif
if (testData.mPreferred < bestData.mPreferred) {
testData.mNode->setCondition(CachedNode::PREFERRED);
return REJECT_TEST;
}
if (testData.mPreferred > bestData.mPreferred)
return TEST_IS_BEST;
return UNDECIDED;
}
const CachedNode* CachedFrame::currentCursor(const CachedFrame** framePtr) const
{
if (framePtr)
*framePtr = this;
if (mCursorIndex < CURSOR_SET)
return NULL;
const CachedNode* result = &mCachedNodes[mCursorIndex];
const CachedFrame* frame = hasFrame(result);
if (frame != NULL)
return frame->currentCursor(framePtr);
(const_cast<CachedNode*>(result))->fixUpCursorRects(mRoot);
return result;
}
const CachedNode* CachedFrame::currentFocus(const CachedFrame** framePtr) const
{
if (framePtr)
*framePtr = this;
if (mFocusIndex < 0)
return NULL;
const CachedNode* result = &mCachedNodes[mFocusIndex];
const CachedFrame* frame = hasFrame(result);
if (frame != NULL)
return frame->currentFocus(framePtr);
return result;
}
bool CachedFrame::directionChange() const
{
return history()->directionChange();
}
#ifdef BROWSER_DEBUG
CachedNode* CachedFrame::find(WebCore::Node* node) // !!! probably debugging only
{
for (CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++)
if (node == test->webCoreNode())
return test;
for (CachedFrame* frame = mCachedFrames.begin(); frame != mCachedFrames.end();
frame++) {
CachedNode* result = frame->find(node);
if (result != NULL)
return result;
}
return NULL;
}
#endif
const CachedNode* CachedFrame::findBestAt(const WebCore::IntRect& rect,
int* best, bool* inside, const CachedNode** directHit,
const CachedFrame** framePtr, int* x, int* y,
bool checkForHiddenStart) const
{
const CachedNode* result = NULL;
int rectWidth = rect.width();
WebCore::IntPoint center = WebCore::IntPoint(rect.x() + (rectWidth >> 1),
rect.y() + (rect.height() >> 1));
mRoot->setupScrolledBounds();
for (const CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++) {
if (test->disabled())
continue;
size_t parts = test->navableRects();
BestData testData;
testData.mNode = test;
testData.mMouseBounds = testData.mNodeBounds = test->getBounds();
bool checkForHidden = checkForHiddenStart;
for (size_t part = 0; part < parts; part++) {
if (test->cursorRings().at(part).intersects(rect)) {
if (checkForHidden && mRoot->maskIfHidden(&testData) == true)
break;
checkForHidden = false;
WebCore::IntRect testRect = test->cursorRings().at(part);
testRect.intersect(testData.mMouseBounds);
if (testRect.contains(center)) {
// We have a direct hit.
if (*directHit == NULL) {
*directHit = test;
*framePtr = this;
*x = center.x();
*y = center.y();
} else {
// We have hit another one before
const CachedNode* d = *directHit;
if (d->getBounds().contains(testRect)) {
// This rectangle is inside the other one, so it is
// the best one.
*directHit = test;
*framePtr = this;
}
}
}
if (NULL != *directHit) {
// If we have a direct hit already, there is no need to
// calculate the distances, or check the other parts
break;
}
WebCore::IntRect both = rect;
int smaller = testRect.width() < testRect.height() ?
testRect.width() : testRect.height();
smaller -= rectWidth;
int inset = smaller < rectWidth ? smaller : rectWidth;
inset >>= 1; // inflate doubles the width decrease
if (inset > 1)
both.inflate(1 - inset);
both.intersect(testRect);
if (both.isEmpty())
continue;
bool testInside = testRect.contains(center);
if (*inside && !testInside)
continue;
WebCore::IntPoint testCenter = WebCore::IntPoint(testRect.x() +
(testRect.width() >> 1), testRect.y() + (testRect.height() >> 1));
int dx = testCenter.x() - center.x();
int dy = testCenter.y() - center.y();
int distance = dx * dx + dy * dy;
if ((!*inside && testInside) || *best >= distance) {
*best = distance;
*inside = testInside;
result = test;
*framePtr = this;
*x = both.x() + (both.width() >> 1);
*y = both.y() + (both.height() >> 1);
}
}
}
}
for (const CachedFrame* frame = mCachedFrames.begin();
frame != mCachedFrames.end(); frame++) {
const CachedNode* frameResult = frame->findBestAt(rect, best, inside,
directHit, framePtr, x, y, checkForHiddenStart);
if (NULL != frameResult)
result = frameResult;
}
if (NULL != *directHit) {
result = *directHit;
}
return result;
}
const CachedFrame* CachedFrame::findBestFrameAt(int x, int y) const
{
if (mLocalViewBounds.contains(x, y) == false)
return NULL;
const CachedFrame* result = this;
for (const CachedFrame* frame = mCachedFrames.begin();
frame != mCachedFrames.end(); frame++) {
const CachedFrame* frameResult = frame->findBestFrameAt(x, y);
if (NULL != frameResult)
result = frameResult;
}
return result;
}
const CachedNode* CachedFrame::findBestHitAt(const WebCore::IntRect& rect,
int* best, const CachedFrame** framePtr, int* x, int* y) const
{
const CachedNode* result = NULL;
int rectWidth = rect.width();
WebCore::IntPoint center = WebCore::IntPoint(rect.x() + (rectWidth >> 1),
rect.y() + (rect.height() >> 1));
mRoot->setupScrolledBounds();
for (const CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++) {
if (test->disabled())
continue;
const WebCore::IntRect& testRect = test->hitBounds();
if (testRect.intersects(rect) == false)
continue;
BestData testData;
testData.mNode = test;
testData.mMouseBounds = testData.mNodeBounds = testRect;
if (mRoot->maskIfHidden(&testData) == true)
continue;
const WebCore::IntRect& bounds = testData.mMouseBounds;
WebCore::IntPoint testCenter = WebCore::IntPoint(bounds.x() +
(bounds.width() >> 1), bounds.y() + (bounds.height() >> 1));
int dx = testCenter.x() - center.x();
int dy = testCenter.y() - center.y();
int distance = dx * dx + dy * dy;
if (*best < distance)
continue;
*best = distance;
result = test;
*framePtr = this;
const WebCore::IntRect& cursorRect = test->cursorRings().at(0);
*x = cursorRect.x() + (cursorRect.width() >> 1);
*y = cursorRect.y() + (cursorRect.height() >> 1);
}
for (const CachedFrame* frame = mCachedFrames.begin();
frame != mCachedFrames.end(); frame++) {
const CachedNode* frameResult = frame->findBestHitAt(rect, best,
framePtr, x, y);
if (NULL != frameResult)
result = frameResult;
}
return result;
}
void CachedFrame::findClosest(BestData* bestData, Direction originalDirection,
Direction direction, WebCore::IntRect* clip) const
{
const CachedNode* test = mCachedNodes.begin();
while ((test = test->traverseNextNode()) != NULL) {
const CachedFrame* child = hasFrame(test);
if (child != NULL) {
const CachedNode* childDoc = child->validDocument();
if (childDoc == NULL)
continue;
child->findClosest(bestData, originalDirection, direction, clip);
}
if (test->noSecondChance())
continue;
if (test->isNavable(*clip) == false)
continue;
if (checkVisited(test, originalDirection) == false)
continue;
size_t partMax = test->navableRects();
for (size_t part = 0; part < partMax; part++) {
WebCore::IntRect testBounds = test->cursorRings().at(part);
if (clip->intersects(testBounds) == false)
continue;
if (clip->contains(testBounds) == false) {
if (direction & UP_DOWN) {
// if (testBounds.x() > clip->x() || testBounds.right() < clip->right())
// continue;
testBounds.setX(clip->x());
testBounds.setWidth(clip->width());
} else {
// if (testBounds.y() > clip->y() || testBounds.bottom() < clip->bottom())
// continue;
testBounds.setY(clip->y());
testBounds.setHeight(clip->height());
}
if (clip->contains(testBounds) == false)
continue;
}
int distance;
// seems like distance for UP for instance needs to be 'test top closest to
// clip bottom' -- keep the old code but try this instead
switch (direction) {
#if 0
case LEFT: distance = testBounds.x() - clip->x(); break;
case RIGHT: distance = clip->right() - testBounds.right(); break;
case UP: distance = testBounds.y() - clip->y(); break;
case DOWN: distance = clip->bottom() - testBounds.bottom(); break;
#else
case LEFT: distance = clip->right() - testBounds.x(); break;
case RIGHT: distance = testBounds.right() - clip->x(); break;
case UP: distance = clip->bottom() - testBounds.y(); break;
case DOWN: distance = testBounds.bottom() - clip->y(); break;
#endif
default:
distance = 0; ASSERT(0);
}
if (distance < bestData->mDistance) {
bestData->mNode = test;
bestData->mFrame = this;
bestData->mDistance = distance;
bestData->mMouseBounds = bestData->mNodeBounds =
test->cursorRings().at(part);
CachedHistory* cachedHistory = history();
switch (direction) {
case LEFT:
bestData->setLeftDirection(cachedHistory);
break;
case RIGHT:
bestData->setRightDirection(cachedHistory);
break;
case UP:
bestData->setUpDirection(cachedHistory);
break;
case DOWN:
bestData->setDownDirection(cachedHistory);
break;
default:
ASSERT(0);
}
}
}
}
}
void CachedFrame::finishInit()
{
CachedNode* lastCached = lastNode();
lastCached->setLast();
CachedFrame* child = mCachedFrames.begin();
while (child != mCachedFrames.end()) {
child->mParent = this;
child->finishInit();
child++;
}
CachedFrame* frameParent;
if (mFocusIndex >= 0 && (frameParent = parent()))
frameParent->setFocusIndex(indexInParent());
}
const CachedNode* CachedFrame::frameDown(const CachedNode* test, const CachedNode* limit, BestData* bestData,
const CachedNode* cursor) const
{
BestData originalData = *bestData;
do {
if (moveInFrame(&CachedFrame::frameDown, test, bestData, cursor))
continue;
BestData testData;
if (frameNodeCommon(testData, test, bestData, &originalData, cursor) == REJECT_TEST)
continue;
if (checkVisited(test, DOWN) == false)
continue;
size_t parts = test->navableRects();
for (size_t part = 0; part < parts; part++) {
testData.mNodeBounds = test->cursorRings().at(part);
if (testData.setDownDirection(history()))
continue;
int result = framePartCommon(testData, test, bestData, cursor);
if (result == REJECT_TEST)
continue;
if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger
BestData innerData = testData;
frameDown(document(), test, &innerData, cursor);
if (checkVisited(innerData.mNode, DOWN)) {
*bestData = innerData;
continue;
}
}
if (checkVisited(test, DOWN))
*bestData = testData;
}
} while ((test = test->traverseNextNode()) != limit);
ASSERT(cursor == NULL || bestData->mNode != cursor);
// does the best contain something (or, is it contained by an area which is not the cursor?)
// if so, is the conainer/containee should have been chosen, but wasn't -- so there's a better choice
// in the doc list prior to this choice
//
return bestData->mNode;
}
const CachedNode* CachedFrame::frameLeft(const CachedNode* test, const CachedNode* limit, BestData* bestData,
const CachedNode* cursor) const
{
BestData originalData = *bestData;
do {
if (moveInFrame(&CachedFrame::frameLeft, test, bestData, cursor))
continue;
BestData testData;
if (frameNodeCommon(testData, test, bestData, &originalData, cursor) == REJECT_TEST)
continue;
if (checkVisited(test, LEFT) == false)
continue;
size_t parts = test->navableRects();
for (size_t part = 0; part < parts; part++) {
testData.mNodeBounds = test->cursorRings().at(part);
if (testData.setLeftDirection(history()))
continue;
int result = framePartCommon(testData, test, bestData, cursor);
if (result == REJECT_TEST)
continue;
if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger
BestData innerData = testData;
frameLeft(document(), test, &innerData, cursor);
if (checkVisited(innerData.mNode, LEFT)) {
*bestData = innerData;
continue;
}
}
if (checkVisited(test, LEFT))
*bestData = testData;
}
} while ((test = test->traverseNextNode()) != limit); // FIXME ??? left and up should use traversePreviousNode to choose reverse document order
ASSERT(cursor == NULL || bestData->mNode != cursor);
return bestData->mNode;
}
int CachedFrame::frameNodeCommon(BestData& testData, const CachedNode* test, BestData* bestData, BestData* originalData,
const CachedNode* cursor) const
{
testData.mFrame = this;
testData.mNode = test;
test->clearCondition();
if (test->disabled()) {
testData.mNode->setCondition(CachedNode::DISABLED);
return REJECT_TEST;
}
if (mRoot->scrolledBounds().intersects(test->bounds()) == false) {
testData.mNode->setCondition(CachedNode::NAVABLE);
return REJECT_TEST;
}
// if (isNavable(test, &testData.mNodeBounds, walk) == false) {
// testData.mNode->setCondition(CachedNode::NAVABLE);
// return REJECT_TEST;
// }
//
if (test == cursor) {
testData.mNode->setCondition(CachedNode::NOT_CURSOR_NODE);
return REJECT_TEST;
}
// if (test->bounds().contains(mRoot->cursorBounds())) {
// testData.mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR);
// return REJECT_TEST;
// }
void* par = cursor ? cursor->parentGroup() : NULL;
testData.mCursorChild = test->parentGroup() == par;
#if 0 // not debugged
if (cursor && cursor->hasMouseOver() && test->hasMouseOver() == false &&
cursor->bounds().contains(test->bounds()))
return REJECT_TEST;
#endif
if (bestData->mNode == NULL)
return TEST_IS_BEST;
#if 0 // not debugged
if (cursor && cursor->hasMouseOver() && test->hasMouseOver() == false &&
cursor->bounds().contains(test->bounds()))
return REJECT_TEST;
if (test->hasMouseOver() != bestData->mNode->hasMouseOver()) {
if (test->hasMouseOver()) {
if (test->bounds().contains(bestData->mNode->bounds())) {
const_cast<CachedNode*>(bestData->mNode)->setDisabled(true);
bestData->mNode = NULL; // force part tests to be ignored, yet still set up remaining test data for later comparison
return TEST_IS_BEST;
}
} else {
if (bestData->mNode->bounds().contains(test->bounds())) {
test->setCondition(CachedNode::ANCHOR_IN_ANCHOR);
return REJECT_TEST;
}
}
}
#endif
if (cursor && testData.mNode->parentIndex() != bestData->mNode->parentIndex()) {
int cursorParentIndex = cursor->parentIndex();
if (cursorParentIndex >= 0) {
if (bestData->mNode->parentIndex() == cursorParentIndex)
return REJECT_TEST;
if (testData.mNode->parentIndex() == cursorParentIndex)
return TEST_IS_BEST;
}
}
if (testData.mNode->parent() == bestData->mNode) {
testData.mNode->setCondition(CachedNode::CHILD);
return REJECT_TEST;
}
if (testData.mNode == bestData->mNode->parent())
return TEST_IS_BEST;
int testInBest = testData.isContainer(bestData); /* -1 pick best over test, 0 no containership, 1 pick test over best */
if (testInBest == 1) {
if (test->isArea() || bestData->mNode->isArea())
return UNDECIDED;
bestData->mNode = NULL; // force part tests to be ignored, yet still set up remaining test data for later comparisons
return TEST_IS_BEST;
}
if (testInBest == -1) {
testData.mNode->setCondition(CachedNode::OUTSIDE_OF_BEST);
return REJECT_TEST;
}
if (originalData->mNode != NULL) { // test is best case
testInBest = testData.isContainer(originalData);
if (testInBest == -1) { /* test is inside best */
testData.mNode->setCondition(CachedNode::OUTSIDE_OF_ORIGINAL);
return REJECT_TEST;
}
}
return UNDECIDED;
}
int CachedFrame::framePartCommon(BestData& testData,
const CachedNode* test, BestData* bestData, const CachedNode* cursor) const
{
if (cursor && testData.mNodeBounds.contains(cursor->bounds())) {
testData.mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR);
return REJECT_TEST;
}
testData.setDistances();
if (bestData->mNode != NULL) {
int compared = compare(testData, *bestData, cursor);
if (compared == 0 && test->isArea() == false && bestData->mNode->isArea() == false)
goto pickTest;
if (compared >= 0)
return compared;
}
pickTest:
return -1; // pick test
}
const CachedNode* CachedFrame::frameRight(const CachedNode* test, const CachedNode* limit, BestData* bestData,
const CachedNode* cursor) const
{
BestData originalData = *bestData;
do {
if (moveInFrame(&CachedFrame::frameRight, test, bestData, cursor))
continue;
BestData testData;
if (frameNodeCommon(testData, test, bestData, &originalData, cursor) == REJECT_TEST)
continue;
if (checkVisited(test, RIGHT) == false)
continue;
size_t parts = test->navableRects();
for (size_t part = 0; part < parts; part++) {
testData.mNodeBounds = test->cursorRings().at(part);
if (testData.setRightDirection(history()))
continue;
int result = framePartCommon(testData, test, bestData, cursor);
if (result == REJECT_TEST)
continue;
if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger
BestData innerData = testData;
frameRight(document(), test, &innerData, cursor);
if (checkVisited(innerData.mNode, RIGHT)) {
*bestData = innerData;
continue;
}
}
if (checkVisited(test, RIGHT))
*bestData = testData;
}
} while ((test = test->traverseNextNode()) != limit);
ASSERT(cursor == NULL || bestData->mNode != cursor);
return bestData->mNode;
}
const CachedNode* CachedFrame::frameUp(const CachedNode* test, const CachedNode* limit, BestData* bestData,
const CachedNode* cursor) const
{
BestData originalData = *bestData;
do {
if (moveInFrame(&CachedFrame::frameUp, test, bestData, cursor))
continue;
BestData testData;
if (frameNodeCommon(testData, test, bestData, &originalData, cursor) == REJECT_TEST)
continue;
if (checkVisited(test, UP) == false)
continue;
size_t parts = test->navableRects();
for (size_t part = 0; part < parts; part++) {
testData.mNodeBounds = test->cursorRings().at(part);
if (testData.setUpDirection(history()))
continue;
int result = framePartCommon(testData, test, bestData, cursor);
if (result == REJECT_TEST)
continue;
if (result == 0 && limit == NULL) { // retry all data up to this point, since smaller may have replaced node preferable to larger
BestData innerData = testData;
frameUp(document(), test, &innerData, cursor);
if (checkVisited(innerData.mNode, UP)) {
*bestData = innerData;
continue;
}
}
if (checkVisited(test, UP))
*bestData = testData;
}
} while ((test = test->traverseNextNode()) != limit); // FIXME ??? left and up should use traversePreviousNode to choose reverse document order
ASSERT(cursor == NULL || bestData->mNode != cursor);
return bestData->mNode;
}
const CachedFrame* CachedFrame::hasFrame(const CachedNode* node) const
{
return node->isFrame() ? &mCachedFrames[node->childFrameIndex()] : NULL;
}
void CachedFrame::hideCursor()
{
DBG_NAV_LOGD("mCursorIndex=%d", mCursorIndex);
if (mCursorIndex < CURSOR_SET)
return;
CachedNode& cursor = mCachedNodes[mCursorIndex];
cursor.hideCursor(this);
}
CachedHistory* CachedFrame::history() const
{
return mRoot->rootHistory();
}
void CachedFrame::init(const CachedRoot* root, int childFrameIndex,
WebCore::Frame* frame)
{
mContents = WebCore::IntRect(0, 0, 0, 0); // fixed up for real in setData()
mLocalViewBounds = WebCore::IntRect(0, 0, 0, 0);
mViewBounds = WebCore::IntRect(0, 0, 0, 0);
mRoot = root;
mCursorIndex = CURSOR_UNINITIALIZED; // not explicitly cleared
mFocusIndex = -1;
mFrame = frame;
mParent = NULL; // set up parents after stretchy arrays are set up
mIndexInParent = childFrameIndex;
}
int CachedFrame::minWorkingHorizontal() const
{
return history()->minWorkingHorizontal();
}
int CachedFrame::minWorkingVertical() const
{
return history()->minWorkingVertical();
}
int CachedFrame::maxWorkingHorizontal() const
{
return history()->maxWorkingHorizontal();
}
int CachedFrame::maxWorkingVertical() const
{
return history()->maxWorkingVertical();
}
const CachedNode* CachedFrame::nextTextField(const CachedNode* start,
const CachedFrame** framePtr, bool includeTextAreas) const
{
CachedNode* test;
if (start) {
test = const_cast<CachedNode*>(start);
test++;
} else {
test = const_cast<CachedNode*>(mCachedNodes.begin());
}
while (test != mCachedNodes.end()) {
CachedFrame* frame = const_cast<CachedFrame*>(hasFrame(test));
if (frame) {
const CachedNode* node
= frame->nextTextField(0, framePtr, includeTextAreas);
if (node)
return node;
} else if (test->isTextField()
|| (includeTextAreas && test->isTextArea())) {
if (framePtr)
*framePtr = this;
return test;
}
test++;
}
return 0;
}
bool CachedFrame::moveInFrame(MoveInDirection moveInDirection,
const CachedNode* test, BestData* bestData,
const CachedNode* cursor) const
{
const CachedFrame* frame = hasFrame(test);
if (frame == NULL)
return false; // if it's not a frame, let the caller have another swing at it
const CachedNode* childDoc = frame->validDocument();
if (childDoc == NULL)
return true;
(frame->*moveInDirection)(childDoc, NULL, bestData, cursor);
return true;
}
const WebCore::IntRect& CachedFrame::_navBounds() const
{
return history()->navBounds();
}
void CachedFrame::resetClippedOut()
{
for (CachedNode* test = mCachedNodes.begin(); test != mCachedNodes.end(); test++)
{
if (test->clippedOut()) {
test->setDisabled(false);
test->setClippedOut(false);
}
}
for (CachedFrame* frame = mCachedFrames.begin(); frame != mCachedFrames.end();
frame++) {
frame->resetClippedOut();
}
}
bool CachedFrame::sameFrame(const CachedFrame* test) const
{
ASSERT(test);
if (mIndexInParent != test->mIndexInParent)
return false;
if (mIndexInParent == -1) // index within parent's array of children, or -1 if root
return true;
return mParent->sameFrame(test->mParent);
}
void CachedFrame::setData()
{
if (this != mRoot) {
mViewBounds = mLocalViewBounds;
mViewBounds.intersect(mRoot->mViewBounds);
}
int x, y;
if (parent() == NULL)
x = y = 0;
else {
x = mLocalViewBounds.x();
y = mLocalViewBounds.y();
}
mContents.setX(x);
mContents.setY(y);
CachedFrame* child = mCachedFrames.begin();
while (child != mCachedFrames.end()) {
child->setData();
child++;
}
}
bool CachedFrame::setCursor(WebCore::Frame* frame, WebCore::Node* node,
int x, int y)
{
if (NULL == node) {
const_cast<CachedRoot*>(mRoot)->setCursor(NULL, NULL);
return true;
}
if (mFrame != frame) {
for (CachedFrame* testF = mCachedFrames.begin(); testF != mCachedFrames.end();
testF++) {
if (testF->setCursor(frame, node, x, y))
return true;
}
DBG_NAV_LOGD("no frame frame=%p node=%p", frame, node);
return false;
}
bool first = true;
CachedNode const * const end = mCachedNodes.end();
do {
for (CachedNode* test = mCachedNodes.begin(); test != end; test++) {
if (test->nodePointer() != node && first)
continue;
size_t partMax = test->navableRects();
WTF::Vector<WebCore::IntRect>& cursorRings = test->cursorRings();
for (size_t part = 0; part < partMax; part++) {
const WebCore::IntRect& testBounds = cursorRings.at(part);
if (testBounds.contains(x, y) == false)
continue;
if (test->isCursor()) {
DBG_NAV_LOGD("already set? test=%d frame=%p node=%p x=%d y=%d",
test->index(), frame, node, x, y);
return false;
}
const_cast<CachedRoot*>(mRoot)->setCursor(this, test);
return true;
}
}
DBG_NAV_LOGD("moved? frame=%p node=%p x=%d y=%d", frame, node, x, y);
} while ((first ^= true) == false);
failed:
DBG_NAV_LOGD("no match frame=%p node=%p", frame, node);
return false;
}
const CachedNode* CachedFrame::validDocument() const
{
const CachedNode* doc = document();
return doc != NULL && mViewBounds.isEmpty() == false ? doc : NULL;
}
bool CachedFrame::BestData::canBeReachedByAnotherDirection()
{
if (mMajorButt > -MIN_OVERLAP)
return false;
mMajorButt = -mMajorButt;
return mNavOutside;
}
int CachedFrame::BestData::isContainer(CachedFrame::BestData* other)
{
int _x = x();
int otherRight = other->right();
if (_x >= otherRight)
return 0; // does not intersect
int _y = y();
int otherBottom = other->bottom();
if (_y >= otherBottom)
return 0; // does not intersect
int _right = right();
int otherX = other->x();
if (otherX >= _right)
return 0; // does not intersect
int _bottom = bottom();
int otherY = other->y();
if (otherY >= _bottom)
return 0; // does not intersect
int intoX = otherX - _x;
int intoY = otherY - _y;
int intoRight = otherRight - _right;
int intoBottom = otherBottom - _bottom;
bool contains = intoX >= 0 && intoY >= 0 && intoRight <= 0 && intoBottom <= 0;
if (contains && mNode->partRectsContains(other->mNode)) {
// if (mIsArea == false && hasMouseOver())
// other->mMouseOver = mNode;
return mNode->isArea() ? 1 : -1;
}
bool containedBy = intoX <= 0 && intoY <= 0 && intoRight >= 0 && intoBottom >= 0;
if (containedBy && other->mNode->partRectsContains(mNode)) {
// if (other->mIsArea == false && other->hasMouseOver())
// mMouseOver = other->mNode;
return other->mNode->isArea() ? -1 : 1;
}
return 0;
}
// distance scale factor factor as a 16.16 scalar
SkFixed CachedFrame::BestData::Overlap(int span, int left, int right)
{
unsigned result;
if (left > 0 && left < span && right > span)
result = (unsigned) left;
else if (right > 0 && right < span && left > span)
result = (unsigned) right;
else if (left > 0 && right > 0)
return SK_Fixed1;
else
return 0;
result = (result << 16) / (unsigned) span; // linear proportion, always less than fixed 1
return (SkFixed) result;
// !!! experiment with weight -- enable if overlaps are preferred too much
// or reverse weighting if overlaps are preferred to little
// return (SkFixed) (result * result >> 16); // but fall off with square
}
void CachedFrame::BestData::setDistances()
{
mDistance = abs(mMajorDelta);
int sideDistance = mWorkingDelta;
if (mWorkingOverlap < SK_Fixed1) {
if (mPreferred > 0)
sideDistance = mWorkingDelta2;
} else if (sideDistance >= 0 && mWorkingDelta2 >=- 0)
sideDistance = 0;
else {
ASSERT(sideDistance <= 0 && mWorkingDelta2 <= 0);
if (sideDistance < mWorkingDelta2)
sideDistance = mWorkingDelta2;
}
// if overlap, smaller abs mWorkingDelta is better, smaller abs majorDelta is better
// if not overlap, positive mWorkingDelta is better
mSideDistance = sideDistance;
}
bool CachedFrame::BestData::setDownDirection(const CachedHistory* history)
{
const WebCore::IntRect& navBounds = history->navBounds();
mMajorButt = mNodeBounds.y() - navBounds.bottom();
int testX = mNodeBounds.x();
int testRight = mNodeBounds.right();
setNavOverlap(navBounds.width(), navBounds.right() - testX,
testRight - navBounds.x());
if (canBeReachedByAnotherDirection()) {
mNode->setCondition(CachedNode::BEST_DIRECTION);
return REJECT_TEST;
}
int inNavTop = mNodeBounds.y() - navBounds.y();
mMajorDelta2 = inNavTop;
mMajorDelta = mMajorDelta2 + ((mNodeBounds.height() -
navBounds.height()) >> 1);
if (mMajorDelta2 <= 1 && mMajorDelta <= 1) {
mNode->setCondition(CachedNode::CENTER_FURTHER); // never move up or sideways
return REJECT_TEST;
}
int inNavBottom = navBounds.bottom() - mNodeBounds.bottom();
setNavInclusion(testRight - navBounds.right(), navBounds.x() - testX);
bool subsumes = navBounds.height() > 0 && inOrSubsumesNav();
if (inNavTop <= 0 && inNavBottom <= 0 && subsumes) {
mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR);
return REJECT_TEST;
}
int maxV = history->maxWorkingVertical();
int minV = history->minWorkingVertical();
setWorkingOverlap(testRight - testX, maxV - testX, testRight - minV);
setWorkingInclusion(testRight - maxV, minV - testX);
if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavBottom >= 0) {
mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER);
return REJECT_TEST;
}
mInNav = history->directionChange() && inNavTop >= 0 &&
inNavBottom > 0 && subsumes;
return false;
}
bool CachedFrame::BestData::setLeftDirection(const CachedHistory* history)
{
const WebCore::IntRect& navBounds = history->navBounds();
mMajorButt = navBounds.x() - mNodeBounds.right();
int testY = mNodeBounds.y();
int testBottom = mNodeBounds.bottom();
setNavOverlap(navBounds.height(), navBounds.bottom() - testY,
testBottom - navBounds.y());
if (canBeReachedByAnotherDirection()) {
mNode->setCondition(CachedNode::BEST_DIRECTION);
return REJECT_TEST;
}
int inNavRight = navBounds.right() - mNodeBounds.right();
mMajorDelta2 = inNavRight;
mMajorDelta = mMajorDelta2 - ((navBounds.width() -
mNodeBounds.width()) >> 1);
if (mMajorDelta2 <= 1 && mMajorDelta <= 1) {
mNode->setCondition(CachedNode::CENTER_FURTHER); // never move right or sideways
return REJECT_TEST;
}
int inNavLeft = mNodeBounds.x() - navBounds.x();
setNavInclusion(navBounds.y() - testY, testBottom - navBounds.bottom());
bool subsumes = navBounds.width() > 0 && inOrSubsumesNav();
if (inNavLeft <= 0 && inNavRight <= 0 && subsumes) {
mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR);
return REJECT_TEST;
}
int maxH = history->maxWorkingHorizontal();
int minH = history->minWorkingHorizontal();
setWorkingOverlap(testBottom - testY, maxH - testY, testBottom - minH);
setWorkingInclusion(minH - testY, testBottom - maxH);
if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavLeft >= 0) {
mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER);
return REJECT_TEST;
}
mInNav = history->directionChange() && inNavLeft >= 0 &&
inNavRight > 0 && subsumes; /* both L/R in or out */
return false;
}
bool CachedFrame::BestData::setRightDirection(const CachedHistory* history)
{
const WebCore::IntRect& navBounds = history->navBounds();
mMajorButt = mNodeBounds.x() - navBounds.right();
int testY = mNodeBounds.y();
int testBottom = mNodeBounds.bottom();
setNavOverlap(navBounds.height(), navBounds.bottom() - testY,
testBottom - navBounds.y());
if (canBeReachedByAnotherDirection()) {
mNode->setCondition(CachedNode::BEST_DIRECTION);
return REJECT_TEST;
}
int inNavLeft = mNodeBounds.x() - navBounds.x();
mMajorDelta2 = inNavLeft;
mMajorDelta = mMajorDelta2 + ((mNodeBounds.width() -
navBounds.width()) >> 1);
if (mMajorDelta2 <= 1 && mMajorDelta <= 1) {
mNode->setCondition(CachedNode::CENTER_FURTHER); // never move left or sideways
return REJECT_TEST;
}
int inNavRight = navBounds.right() - mNodeBounds.right();
setNavInclusion(testBottom - navBounds.bottom(), navBounds.y() - testY);
bool subsumes = navBounds.width() > 0 && inOrSubsumesNav();
if (inNavLeft <= 0 && inNavRight <= 0 && subsumes) {
mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR);
return REJECT_TEST;
}
int maxH = history->maxWorkingHorizontal();
int minH = history->minWorkingHorizontal();
setWorkingOverlap(testBottom - testY, testBottom - minH, maxH - testY);
setWorkingInclusion(testBottom - maxH, minH - testY);
if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavRight >= 0) {
mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER);
return REJECT_TEST;
}
mInNav = history->directionChange() && inNavLeft >= 0 &&
inNavRight > 0 && subsumes; /* both L/R in or out */
return false;
}
bool CachedFrame::BestData::setUpDirection(const CachedHistory* history)
{
const WebCore::IntRect& navBounds = history->navBounds();
mMajorButt = navBounds.y() - mNodeBounds.bottom();
int testX = mNodeBounds.x();
int testRight = mNodeBounds.right();
setNavOverlap(navBounds.width(), navBounds.right() - testX,
testRight - navBounds.x());
if (canBeReachedByAnotherDirection()) {
mNode->setCondition(CachedNode::BEST_DIRECTION);
return REJECT_TEST;
}
int inNavBottom = navBounds.bottom() - mNodeBounds.bottom();
mMajorDelta2 = inNavBottom;
mMajorDelta = mMajorDelta2 - ((navBounds.height() -
mNodeBounds.height()) >> 1);
if (mMajorDelta2 <= 1 && mMajorDelta <= 1) {
mNode->setCondition(CachedNode::CENTER_FURTHER); // never move down or sideways
return REJECT_TEST;
}
int inNavTop = mNodeBounds.y() - navBounds.y();
setNavInclusion(navBounds.x() - testX, testRight - navBounds.right());
bool subsumes = navBounds.height() > 0 && inOrSubsumesNav();
if (inNavTop <= 0 && inNavBottom <= 0 && subsumes) {
mNode->setCondition(CachedNode::NOT_ENCLOSING_CURSOR);
return REJECT_TEST;
}
int maxV = history->maxWorkingVertical();
int minV = history->minWorkingVertical();
setWorkingOverlap(testRight - testX, testRight - minV, maxV - testX);
setWorkingInclusion(minV - testX, testRight - maxV);
if (mWorkingOverlap == 0 && mNavOverlap == 0 && inNavTop >= 0) {
mNode->setCondition(CachedNode::OVERLAP_OR_EDGE_FURTHER);
return REJECT_TEST;
}
mInNav = history->directionChange() && inNavTop >= 0 &&
inNavBottom > 0 && subsumes; /* both L/R in or out */
return false;
}
void CachedFrame::BestData::setNavInclusion(int left, int right)
{
// if left and right <= 0, test node is completely in umbra of cursor
// prefer leftmost center
// if left and right > 0, test node subsumes cursor
mNavDelta = left;
mNavDelta2 = right;
}
void CachedFrame::BestData::setNavOverlap(int span, int left, int right)
{
// if left or right < 0, test node is not in umbra of cursor
mNavOutside = left < MIN_OVERLAP || right < MIN_OVERLAP;
mNavOverlap = Overlap(span, left, right); // prefer smallest negative left
}
void CachedFrame::BestData::setWorkingInclusion(int left, int right)
{
mWorkingDelta = left;
mWorkingDelta2 = right;
}
// distance scale factor factor as a 16.16 scalar
void CachedFrame::BestData::setWorkingOverlap(int span, int left, int right)
{
// if left or right < 0, test node is not in umbra of cursor
mWorkingOutside = left < MIN_OVERLAP || right < MIN_OVERLAP;
mWorkingOverlap = Overlap(span, left, right);
mPreferred = left <= 0 ? 0 : left;
}
#if DUMP_NAV_CACHE
#define DEBUG_PRINT_RECT(prefix, debugName, field) \
{ const WebCore::IntRect& r = b->field; \
DUMP_NAV_LOGD("%s DebugTestRect TEST%s_" #debugName "={%d, %d, %d, %d}; //" #field "\n", \
prefix, mFrameName, r.x(), r.y(), r.width(), r.height()); }
CachedFrame* CachedFrame::Debug::base() const {
CachedFrame* nav = (CachedFrame*) ((char*) this - OFFSETOF(CachedFrame, mDebug));
return nav;
}
void CachedFrame::Debug::print() const
{
CachedFrame* b = base();
DEBUG_PRINT_RECT("//", CONTENTS, mContents);
DEBUG_PRINT_RECT("", BOUNDS, mLocalViewBounds);
DEBUG_PRINT_RECT("//", VIEW, mViewBounds);
DUMP_NAV_LOGD("// CachedNode mCachedNodes={ // count=%d\n", b->mCachedNodes.size());
for (CachedNode* node = b->mCachedNodes.begin();
node != b->mCachedNodes.end(); node++)
node->mDebug.print();
DUMP_NAV_LOGD("// }; // end of nodes\n");
DUMP_NAV_LOGD("// CachedFrame mCachedFrames={ // count=%d\n", b->mCachedFrames.size());
for (CachedFrame* child = b->mCachedFrames.begin();
child != b->mCachedFrames.end(); child++)
{
child->mDebug.print();
}
DUMP_NAV_LOGD("// }; // end of child frames\n");
DUMP_NAV_LOGD("// void* mFrame=(void*) %p;\n", b->mFrame);
DUMP_NAV_LOGD("// CachedFrame* mParent=%p;\n", b->mParent);
DUMP_NAV_LOGD("// int mIndexInParent=%d;\n", b->mIndexInParent);
DUMP_NAV_LOGD("// const CachedRoot* mRoot=%p;\n", b->mRoot);
DUMP_NAV_LOGD("// int mCursorIndex=%d;\n", b->mCursorIndex);
DUMP_NAV_LOGD("// int mFocusIndex=%d;\n", b->mFocusIndex);
}
bool CachedFrame::Debug::validate(const CachedNode* node) const
{
const CachedFrame* b = base();
if (b->mCachedNodes.size() == 0)
return false;
if (node >= b->mCachedNodes.begin() && node < b->mCachedNodes.end())
return true;
for (const CachedFrame* child = b->mCachedFrames.begin();
child != b->mCachedFrames.end(); child++)
if (child->mDebug.validate(node))
return true;
return false;
}
#undef DEBUG_PRINT_RECT
#endif
}
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