TEST_P(PaintControllerPaintTestForSlimmingPaintV1AndV2, InlineRelayout) {
setBodyInnerHTML(
"<div id='div' style='width:100px; height: 200px'>AAAAAAAAAA "
"BBBBBBBBBB</div>");
Element& div = *toElement(document().body()->firstChild());
LayoutBlock& divBlock =
*toLayoutBlock(document().body()->firstChild()->layoutObject());
LayoutText& text = *toLayoutText(divBlock.firstChild());
InlineTextBox& firstTextBox = *text.firstTextBox();
if (RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 6,
TestDisplayItem(layoutView(),
DisplayItem::kClipFrameToVisibleContentRect),
TestDisplayItem(*layoutView().layer(), DisplayItem::kSubsequence),
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(firstTextBox, foregroundType),
TestDisplayItem(*layoutView().layer(), DisplayItem::kEndSubsequence),
TestDisplayItem(layoutView(),
DisplayItem::clipTypeToEndClipType(
DisplayItem::kClipFrameToVisibleContentRect)));
} else {
EXPECT_DISPLAY_LIST(rootPaintController().getDisplayItemList(), 2,
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(firstTextBox, foregroundType));
}
div.setAttribute(HTMLNames::styleAttr, "width: 10px; height: 200px");
document().view()->updateAllLifecyclePhases();
LayoutText& newText = *toLayoutText(divBlock.firstChild());
InlineTextBox& newFirstTextBox = *newText.firstTextBox();
InlineTextBox& secondTextBox = *newText.firstTextBox()->nextTextBox();
if (RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 7,
TestDisplayItem(layoutView(),
DisplayItem::kClipFrameToVisibleContentRect),
TestDisplayItem(*layoutView().layer(), DisplayItem::kSubsequence),
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(newFirstTextBox, foregroundType),
TestDisplayItem(secondTextBox, foregroundType),
TestDisplayItem(*layoutView().layer(), DisplayItem::kEndSubsequence),
TestDisplayItem(layoutView(),
DisplayItem::clipTypeToEndClipType(
DisplayItem::kClipFrameToVisibleContentRect)));
} else {
EXPECT_DISPLAY_LIST(rootPaintController().getDisplayItemList(), 3,
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(newFirstTextBox, foregroundType),
TestDisplayItem(secondTextBox, foregroundType));
}
}
TEST_P(PaintControllerPaintTestForSlimmingPaintV1AndV2, InlineRelayout)
{
setBodyInnerHTML("<div id='div' style='width:100px; height: 200px'>AAAAAAAAAA BBBBBBBBBB</div>");
PaintLayer& rootLayer = *layoutView().layer();
Element& div = *toElement(document().body()->firstChild());
LayoutBlock& divBlock = *toLayoutBlock(document().body()->firstChild()->layoutObject());
LayoutText& text = *toLayoutText(divBlock.firstChild());
InlineTextBox& firstTextBox = *text.firstTextBox();
if (RuntimeEnabledFeatures::slimmingPaintSynchronizedPaintingEnabled()) {
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 4,
TestDisplayItem(rootLayer, DisplayItem::Subsequence),
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(firstTextBox, foregroundType),
TestDisplayItem(rootLayer, DisplayItem::EndSubsequence));
} else {
GraphicsContext context(rootPaintController());
PaintLayerPaintingInfo paintingInfo(&rootLayer, LayoutRect(0, 0, 800, 600), GlobalPaintNormalPhase, LayoutSize());
PaintLayerPainter(rootLayer).paintLayerContents(&context, paintingInfo, PaintLayerPaintingCompositingAllPhases);
rootPaintController().commitNewDisplayItems();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 2,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(firstTextBox, foregroundType));
}
div.setAttribute(HTMLNames::styleAttr, "width: 10px; height: 200px");
document().view()->updateAllLifecyclePhases();
LayoutText& newText = *toLayoutText(divBlock.firstChild());
InlineTextBox& newFirstTextBox = *newText.firstTextBox();
InlineTextBox& secondTextBox = *newText.firstTextBox()->nextTextBox();
if (RuntimeEnabledFeatures::slimmingPaintSynchronizedPaintingEnabled()) {
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 5,
TestDisplayItem(rootLayer, DisplayItem::Subsequence),
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(newFirstTextBox, foregroundType),
TestDisplayItem(secondTextBox, foregroundType),
TestDisplayItem(rootLayer, DisplayItem::EndSubsequence));
} else {
GraphicsContext context(rootPaintController());
PaintLayerPaintingInfo paintingInfo(&rootLayer, LayoutRect(0, 0, 800, 600), GlobalPaintNormalPhase, LayoutSize());
PaintLayerPainter(rootLayer).paintLayerContents(&context, paintingInfo, PaintLayerPaintingCompositingAllPhases);
rootPaintController().commitNewDisplayItems();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 3,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(newFirstTextBox, foregroundType),
TestDisplayItem(secondTextBox, foregroundType));
}
}
TEST_F(VisualRectMappingTest, LayoutText) {
setBodyInnerHTML(
"<style>body { margin: 0; }</style>"
"<div id='container' style='overflow: scroll; width: 50px; height: 50px'>"
" <span><img style='width: 20px; height: 100px'></span>"
" text text text text text text text"
"</div>");
LayoutBlock* container =
toLayoutBlock(getLayoutObjectByElementId("container"));
LayoutText* text = toLayoutText(container->lastChild());
container->setScrollTop(LayoutUnit(50));
LayoutRect originalRect(0, 60, 20, 80);
LayoutRect rect = originalRect;
EXPECT_TRUE(text->mapToVisualRectInAncestorSpace(container, rect));
rect.move(-container->scrolledContentOffset());
EXPECT_EQ(rect, LayoutRect(0, 10, 20, 80));
rect = originalRect;
EXPECT_TRUE(text->mapToVisualRectInAncestorSpace(&layoutView(), rect));
EXPECT_EQ(rect, LayoutRect(0, 10, 20, 40));
checkPaintInvalidationStateRectMapping(rect, originalRect, *text,
layoutView(), layoutView());
rect = LayoutRect(0, 60, 80, 0);
EXPECT_TRUE(
text->mapToVisualRectInAncestorSpace(container, rect, EdgeInclusive));
rect.move(-container->scrolledContentOffset());
EXPECT_EQ(rect, LayoutRect(0, 10, 80, 0));
}
void LayoutAnalyzer::push(const LayoutObject& o)
{
increment(TotalLayoutObjectsThatWereLaidOut);
if (!o.everHadLayout())
increment(LayoutObjectsThatHadNeverHadLayout);
if (o.selfNeedsLayout())
increment(LayoutObjectsThatNeedLayoutForThemselves);
if (o.needsPositionedMovementLayout())
increment(LayoutObjectsThatNeedPositionedMovementLayout);
if (o.isOutOfFlowPositioned())
increment(LayoutObjectsThatAreOutOfFlowPositioned);
if (o.isTableCell())
increment(LayoutObjectsThatAreTableCells);
if (o.isFloating())
increment(LayoutObjectsThatAreFloating);
if (o.style()->specifiesColumns())
increment(LayoutObjectsThatSpecifyColumns);
if (o.hasLayer())
increment(LayoutObjectsThatHaveALayer);
if (o.isLayoutInline() && o.alwaysCreateLineBoxesForLayoutInline())
increment(LayoutInlineObjectsThatAlwaysCreateLineBoxes);
if (o.isText()) {
const LayoutText& t = *toLayoutText(&o);
if (t.canUseSimpleFontCodePath()) {
increment(LayoutObjectsThatAreTextAndCanUseTheSimpleFontCodePath);
increment(CharactersInLayoutObjectsThatAreTextAndCanUseTheSimpleFontCodePath, t.textLength());
} else {
increment(LayoutObjectsThatAreTextAndCanNotUseTheSimpleFontCodePath);
increment(CharactersInLayoutObjectsThatAreTextAndCanNotUseTheSimpleFontCodePath, t.textLength());
}
}
// This might be a root in a subtree layout, in which case the LayoutObject
// has a parent but the stack is empty. If a LayoutObject subclass forgets
// to call push() and is a root in a subtree layout, then this
// assert would only fail if that LayoutObject instance has any children
// that need layout and do call push().
// LayoutBlock::layoutPositionedObjects() hoists positioned descendants.
// LayoutBlockFlow::layoutInlineChildren() walks through inlines.
// LayoutTableSection::layoutRows() walks through rows.
if (!o.isPositioned()
&& !o.isTableCell()
&& !o.isSVGResourceContainer()
&& (m_stack.size() != 0)
&& !(o.parent()->childrenInline()
&& (o.isReplaced() || o.isFloating() || o.isOutOfFlowPositioned()))) {
ASSERT(o.parent() == m_stack.peek());
}
m_stack.push(&o);
// This refers to LayoutAnalyzer depth, not layout tree depth or DOM tree
// depth. LayoutAnalyzer depth is generally closer to C++ stack recursion
// depth. See above exceptions for when LayoutAnalyzer depth != layout tree
// depth.
if (m_stack.size() > m_counters[LayoutAnalyzerStackMaximumDepth])
m_counters[LayoutAnalyzerStackMaximumDepth] = m_stack.size();
}
static int maxOffsetIncludingCollapsedSpaces(Node* node)
{
int offset = caretMaxOffset(node);
if (node->layoutObject() && node->layoutObject()->isText())
offset += collapsedSpaceLength(toLayoutText(node->layoutObject()), offset);
return offset;
}
void IntersectionObservation::initializeGeometry(IntersectionGeometry& geometry)
{
ASSERT(m_target);
LayoutObject* targetLayoutObject = target()->layoutObject();
if (targetLayoutObject->isBoxModelObject())
geometry.targetRect = toLayoutBoxModelObject(targetLayoutObject)->visualOverflowRect();
else
geometry.targetRect = toLayoutText(targetLayoutObject)->visualOverflowRect();
geometry.intersectionRect = geometry.targetRect;
}
TracedLayoutObject::TracedLayoutObject(const LayoutObject& object)
: m_address((unsigned long) &object)
, m_isAnonymous(object.isAnonymous())
, m_isPositioned(object.isOutOfFlowPositioned())
, m_isRelPositioned(object.isRelPositioned())
, m_isStickyPositioned(object.isStickyPositioned())
, m_isFloating(object.isFloating())
, m_selfNeeds(object.selfNeedsLayout())
, m_positionedMovement(object.needsPositionedMovementLayout())
, m_childNeeds(object.normalChildNeedsLayout())
, m_posChildNeeds(object.posChildNeedsLayout())
, m_isTableCell(object.isTableCell())
, m_name(String(object.name()).isolatedCopy())
, m_absRect(object.absoluteBoundingBoxRect())
{
if (Node* node = object.node()) {
m_tag = String(node->nodeName()).isolatedCopy();
if (node->isElementNode()) {
Element& element = toElement(*node);
if (element.hasID())
m_id = String(element.getIdAttribute()).isolatedCopy();
if (element.hasClass()) {
for (size_t i = 0; i < element.classNames().size(); ++i) {
m_classNames.append(
String(element.classNames()[i]).isolatedCopy());
}
}
}
}
// FIXME: When the fixmes in LayoutTreeAsText::writeLayoutObject() are
// fixed, deduplicate it with this.
if (object.isText()) {
m_rect = LayoutRect(toLayoutText(object).linesBoundingBox());
} else if (object.isLayoutInline()) {
m_rect = LayoutRect(toLayoutInline(object).linesBoundingBox());
} else if (object.isBox()) {
m_rect = toLayoutBox(&object)->frameRect();
}
if (m_isTableCell) {
const LayoutTableCell& c = toLayoutTableCell(object);
if (c.row() && c.row()->rowIndexWasSet() && c.hasCol()
&& (!c.row()->section() || !c.row()->section()->needsCellRecalc())) {
m_row = c.rowIndex();
m_col = c.col();
m_rowSpan = c.rowSpan();
m_colSpan = c.colSpan();
}
}
for (LayoutObject* child = object.slowFirstChild(); child; child = child->nextSibling()) {
m_children.append(adoptRef(new TracedLayoutObject(*child)));
}
}
void LayoutRubyRun::getOverhang(bool firstLine, LayoutObject* startLayoutObject, LayoutObject* endLayoutObject, int& startOverhang, int& endOverhang) const
{
ASSERT(!needsLayout());
startOverhang = 0;
endOverhang = 0;
LayoutRubyBase* rubyBase = this->rubyBase();
LayoutRubyText* rubyText = this->rubyText();
if (!rubyBase || !rubyText)
return;
if (!rubyBase->firstRootBox())
return;
int logicalWidth = this->logicalWidth();
int logicalLeftOverhang = std::numeric_limits<int>::max();
int logicalRightOverhang = std::numeric_limits<int>::max();
for (RootInlineBox* rootInlineBox = rubyBase->firstRootBox(); rootInlineBox; rootInlineBox = rootInlineBox->nextRootBox()) {
logicalLeftOverhang = std::min<int>(logicalLeftOverhang, rootInlineBox->logicalLeft());
logicalRightOverhang = std::min<int>(logicalRightOverhang, logicalWidth - rootInlineBox->logicalRight());
}
startOverhang = style()->isLeftToRightDirection() ? logicalLeftOverhang : logicalRightOverhang;
endOverhang = style()->isLeftToRightDirection() ? logicalRightOverhang : logicalLeftOverhang;
if (!startLayoutObject || !startLayoutObject->isText() || startLayoutObject->style(firstLine)->fontSize() > rubyBase->style(firstLine)->fontSize())
startOverhang = 0;
if (!endLayoutObject || !endLayoutObject->isText() || endLayoutObject->style(firstLine)->fontSize() > rubyBase->style(firstLine)->fontSize())
endOverhang = 0;
// We overhang a ruby only if the neighboring layout object is a text.
// We can overhang the ruby by no more than half the width of the neighboring text
// and no more than half the font size.
int halfWidthOfFontSize = rubyText->style(firstLine)->fontSize() / 2;
if (startOverhang)
startOverhang = std::min<int>(startOverhang, std::min<int>(toLayoutText(startLayoutObject)->minLogicalWidth(), halfWidthOfFontSize));
if (endOverhang)
endOverhang = std::min<int>(endOverhang, std::min<int>(toLayoutText(endLayoutObject)->minLogicalWidth(), halfWidthOfFontSize));
}
TEST_P(PaintControllerPaintTestForSlimmingPaintV1AndV2,
FullDocumentPaintingWithCaret) {
setBodyInnerHTML(
"<div id='div' contentEditable='true' style='outline:none'>XYZ</div>");
document().page()->focusController().setActive(true);
document().page()->focusController().setFocused(true);
Element& div = *toElement(document().body()->firstChild());
InlineTextBox& textInlineBox =
*toLayoutText(div.firstChild()->layoutObject())->firstTextBox();
if (RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 6,
TestDisplayItem(layoutView(),
DisplayItem::kClipFrameToVisibleContentRect),
TestDisplayItem(*layoutView().layer(), DisplayItem::kSubsequence),
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(*layoutView().layer(), DisplayItem::kEndSubsequence),
TestDisplayItem(layoutView(),
DisplayItem::clipTypeToEndClipType(
DisplayItem::kClipFrameToVisibleContentRect)));
} else {
EXPECT_DISPLAY_LIST(rootPaintController().getDisplayItemList(), 2,
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(textInlineBox, foregroundType));
}
div.focus();
document().view()->updateAllLifecyclePhases();
if (RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 7,
TestDisplayItem(layoutView(),
DisplayItem::kClipFrameToVisibleContentRect),
TestDisplayItem(*layoutView().layer(), DisplayItem::kSubsequence),
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(*document().frame()->selection().m_frameCaret,
DisplayItem::kCaret), // New!
TestDisplayItem(*layoutView().layer(), DisplayItem::kEndSubsequence),
TestDisplayItem(layoutView(),
DisplayItem::clipTypeToEndClipType(
DisplayItem::kClipFrameToVisibleContentRect)));
} else {
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 3,
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(*document().frame()->selection().m_frameCaret,
DisplayItem::kCaret)); // New!
}
}
LayoutTextFragment* LayoutQuote::findFragmentChild() const
{
// We walk from the end of the child list because, if we've had a first-letter
// LayoutObject inserted then the remaining text will be at the end.
while (LayoutObject* child = lastChild()) {
if (child->isText() && toLayoutText(child)->isTextFragment())
return toLayoutTextFragment(child);
}
return nullptr;
}
LayoutText* SimplifiedBackwardsTextIteratorAlgorithm<Strategy>::handleFirstLetter(int& startOffset, int& offsetInNode)
{
LayoutText* layoutObject = toLayoutText(m_node->layoutObject());
startOffset = (m_node == m_startNode) ? m_startOffset : 0;
if (!layoutObject->isTextFragment()) {
offsetInNode = 0;
return layoutObject;
}
LayoutTextFragment* fragment = toLayoutTextFragment(layoutObject);
int offsetAfterFirstLetter = fragment->start();
if (startOffset >= offsetAfterFirstLetter) {
ASSERT(!m_shouldHandleFirstLetter);
offsetInNode = offsetAfterFirstLetter;
return layoutObject;
}
if (!m_shouldHandleFirstLetter && offsetAfterFirstLetter < m_offset) {
m_shouldHandleFirstLetter = true;
offsetInNode = offsetAfterFirstLetter;
return layoutObject;
}
m_shouldHandleFirstLetter = false;
offsetInNode = 0;
ASSERT(fragment->isRemainingTextLayoutObject());
ASSERT(fragment->firstLetterPseudoElement());
LayoutObject* pseudoElementLayoutObject = fragment->firstLetterPseudoElement()->layoutObject();
ASSERT(pseudoElementLayoutObject);
ASSERT(pseudoElementLayoutObject->slowFirstChild());
LayoutText* firstLetterLayoutObject = toLayoutText(pseudoElementLayoutObject->slowFirstChild());
m_offset = firstLetterLayoutObject->caretMaxOffset();
m_offset += collapsedSpaceLength(firstLetterLayoutObject, m_offset);
return firstLetterLayoutObject;
}
bool EditCommand::isRenderedCharacter(const Position& position) {
if (position.isNull())
return false;
DCHECK(position.isOffsetInAnchor()) << position;
if (!position.anchorNode()->isTextNode())
return false;
LayoutObject* layoutObject = position.anchorNode()->layoutObject();
if (!layoutObject)
return false;
return toLayoutText(layoutObject)
->isRenderedCharacter(position.offsetInContainerNode());
}
TEST_P(PaintControllerPaintTestForSlimmingPaintV1AndV2, FullDocumentPaintingWithCaret)
{
setBodyInnerHTML("<div id='div' contentEditable='true' style='outline:none'>XYZ</div>");
document().page()->focusController().setActive(true);
document().page()->focusController().setFocused(true);
PaintLayer& rootLayer = *layoutView().layer();
Element& div = *toElement(document().body()->firstChild());
LayoutObject& divLayoutObject = *document().body()->firstChild()->layoutObject();
InlineTextBox& textInlineBox = *toLayoutText(div.firstChild()->layoutObject())->firstTextBox();
if (RuntimeEnabledFeatures::slimmingPaintSynchronizedPaintingEnabled()) {
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 4,
TestDisplayItem(rootLayer, DisplayItem::Subsequence),
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(rootLayer, DisplayItem::EndSubsequence));
} else {
GraphicsContext context(rootPaintController());
PaintLayerPaintingInfo paintingInfo(&rootLayer, LayoutRect(0, 0, 800, 600), GlobalPaintNormalPhase, LayoutSize());
PaintLayerPainter(rootLayer).paintLayerContents(&context, paintingInfo, PaintLayerPaintingCompositingAllPhases);
rootPaintController().commitNewDisplayItems();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 2,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(textInlineBox, foregroundType));
}
div.focus();
document().view()->updateAllLifecyclePhases();
if (RuntimeEnabledFeatures::slimmingPaintSynchronizedPaintingEnabled()) {
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 5,
TestDisplayItem(rootLayer, DisplayItem::Subsequence),
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(divLayoutObject, DisplayItem::Caret), // New!
TestDisplayItem(rootLayer, DisplayItem::EndSubsequence));
} else {
GraphicsContext context(rootPaintController());
PaintLayerPaintingInfo paintingInfo(&rootLayer, LayoutRect(0, 0, 800, 600), GlobalPaintNormalPhase, LayoutSize());
PaintLayerPainter(rootLayer).paintLayerContents(&context, paintingInfo, PaintLayerPaintingCompositingAllPhases);
rootPaintController().commitNewDisplayItems();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 3,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(divLayoutObject, DisplayItem::Caret)); // New!
}
}
TEST_P(PaintControllerPaintTestForSlimmingPaintV1AndV2, InlineRelayout)
{
setBodyInnerHTML("<div id='div' style='width:100px; height: 200px'>AAAAAAAAAA BBBBBBBBBB</div>");
Element& div = *toElement(document().body()->firstChild());
LayoutBlock& divBlock = *toLayoutBlock(document().body()->firstChild()->layoutObject());
LayoutText& text = *toLayoutText(divBlock.firstChild());
InlineTextBox& firstTextBox = *text.firstTextBox();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 2,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(firstTextBox, foregroundType));
div.setAttribute(HTMLNames::styleAttr, "width: 10px; height: 200px");
document().view()->updateAllLifecyclePhases();
LayoutText& newText = *toLayoutText(divBlock.firstChild());
InlineTextBox& newFirstTextBox = *newText.firstTextBox();
InlineTextBox& secondTextBox = *newText.firstTextBox()->nextTextBox();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 3,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(newFirstTextBox, foregroundType),
TestDisplayItem(secondTextBox, foregroundType));
}
TEST_F(LayoutObjectTest, MapToVisibleRectInContainerSpace)
{
setBodyInnerHTML(
"<div id='container' style='overflow: scroll; will-change: transform; width: 50px; height: 50px'>"
" <span><img style='width: 20px; height: 100px'></span>"
" text text text text text text text"
"</div>");
LayoutBlock* container = toLayoutBlock(document().getElementById("container")->layoutObject());
LayoutText* text = toLayoutText(container->lastChild());
container->setScrollTop(50);
LayoutRect rect(0, 60, 20, 20);
text->mapToVisibleRectInAncestorSpace(container, rect, nullptr);
EXPECT_TRUE(rect == LayoutRect(0, 10, 20, 20));
}
bool TextAutosizer::clusterHasEnoughTextToAutosize(Cluster* cluster, const LayoutBlock* widthProvider)
{
if (cluster->m_hasEnoughTextToAutosize != UnknownAmountOfText)
return cluster->m_hasEnoughTextToAutosize == HasEnoughText;
const LayoutBlock* root = cluster->m_root;
if (!widthProvider)
widthProvider = clusterWidthProvider(root);
// TextAreas and user-modifiable areas get a free pass to autosize regardless of text content.
if (root->isTextArea() || (root->style() && root->style()->userModify() != READ_ONLY)) {
cluster->m_hasEnoughTextToAutosize = HasEnoughText;
return true;
}
if (cluster->m_flags & SUPPRESSING) {
cluster->m_hasEnoughTextToAutosize = NotEnoughText;
return false;
}
// 4 lines of text is considered enough to autosize.
float minimumTextLengthToAutosize = widthFromBlock(widthProvider) * 4;
float length = 0;
LayoutObject* descendant = root->firstChild();
while (descendant) {
if (descendant->isLayoutBlock()) {
if (classifyBlock(descendant, INDEPENDENT | SUPPRESSING)) {
descendant = descendant->nextInPreOrderAfterChildren(root);
continue;
}
} else if (descendant->isText()) {
// Note: Using text().stripWhiteSpace().length() instead of resolvedTextLength() because
// the lineboxes will not be built until layout. These values can be different.
// Note: This is an approximation assuming each character is 1em wide.
length += toLayoutText(descendant)->text().stripWhiteSpace().length() * descendant->style()->specifiedFontSize();
if (length >= minimumTextLengthToAutosize) {
cluster->m_hasEnoughTextToAutosize = HasEnoughText;
return true;
}
}
descendant = descendant->nextInPreOrder(root);
}
cluster->m_hasEnoughTextToAutosize = NotEnoughText;
return false;
}
TEST_P(PaintControllerPaintTestForSlimmingPaintV1AndV2, FullDocumentPaintingWithCaret)
{
setBodyInnerHTML("<div id='div' contentEditable='true' style='outline:none'>XYZ</div>");
document().page()->focusController().setActive(true);
document().page()->focusController().setFocused(true);
Element& div = *toElement(document().body()->firstChild());
LayoutObject& divLayoutObject = *document().body()->firstChild()->layoutObject();
InlineTextBox& textInlineBox = *toLayoutText(div.firstChild()->layoutObject())->firstTextBox();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 2,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(textInlineBox, foregroundType));
div.focus();
document().view()->updateAllLifecyclePhases();
EXPECT_DISPLAY_LIST(rootPaintController().displayItemList(), 3,
TestDisplayItem(layoutView(), backgroundType),
TestDisplayItem(textInlineBox, foregroundType),
TestDisplayItem(divLayoutObject, DisplayItem::Caret)); // New!
}
TEST_F(VisualRectMappingTest, LayoutView) {
document().setBaseURLOverride(KURL(ParsedURLString, "http://test.com"));
setBodyInnerHTML(
"<style>body { margin: 0; }</style>"
"<div id=frameContainer>"
" <iframe src='http://test.com' width='50' height='50' "
"frameBorder='0'></iframe>"
"</div>");
setChildFrameHTML(
"<style>body { margin: 0; }</style><span><img style='width: 20px; "
"height: 100px'></span>text text text");
document().view()->updateAllLifecyclePhases();
LayoutBlock* frameContainer =
toLayoutBlock(getLayoutObjectByElementId("frameContainer"));
LayoutBlock* frameBody =
toLayoutBlock(childDocument().body()->layoutObject());
LayoutText* frameText = toLayoutText(frameBody->lastChild());
// This case involves clipping: frame height is 50, y-coordinate of result
// rect is 13, so height should be clipped to (50 - 13) == 37.
childDocument().view()->setScrollOffset(ScrollOffset(0, 47),
ProgrammaticScroll);
LayoutRect originalRect(4, 60, 20, 80);
LayoutRect rect = originalRect;
EXPECT_TRUE(frameText->mapToVisualRectInAncestorSpace(frameContainer, rect));
EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
rect = originalRect;
EXPECT_TRUE(frameText->mapToVisualRectInAncestorSpace(&layoutView(), rect));
EXPECT_EQ(rect, LayoutRect(4, 13, 20, 37));
checkPaintInvalidationStateRectMapping(rect, originalRect, *frameText,
layoutView(), layoutView());
rect = LayoutRect(4, 60, 0, 80);
EXPECT_TRUE(frameText->mapToVisualRectInAncestorSpace(frameContainer, rect,
EdgeInclusive));
EXPECT_EQ(rect, LayoutRect(4, 13, 0, 37));
}
void LayoutAnalyzer::push(const LayoutObject& o)
{
increment(TotalLayoutObjectsThatWereLaidOut);
if (!o.everHadLayout())
increment(LayoutObjectsThatHadNeverHadLayout);
if (o.selfNeedsLayout())
increment(LayoutObjectsThatNeedLayoutForThemselves);
if (o.needsPositionedMovementLayout())
increment(LayoutObjectsThatNeedPositionedMovementLayout);
if (o.isOutOfFlowPositioned())
increment(LayoutObjectsThatAreOutOfFlowPositioned);
if (o.isTableCell())
increment(LayoutObjectsThatAreTableCells);
if (o.isFloating())
increment(LayoutObjectsThatAreFloating);
if (o.style()->specifiesColumns())
increment(LayoutObjectsThatSpecifyColumns);
if (o.hasLayer())
increment(LayoutObjectsThatHaveALayer);
if (o.isLayoutInline() && o.alwaysCreateLineBoxesForLayoutInline())
increment(LayoutInlineObjectsThatAlwaysCreateLineBoxes);
if (o.isText()) {
const LayoutText& t = *toLayoutText(&o);
if (t.canUseSimpleFontCodePath()) {
increment(LayoutObjectsThatAreTextAndCanUseTheSimpleFontCodePath);
increment(CharactersInLayoutObjectsThatAreTextAndCanUseTheSimpleFontCodePath, t.textLength());
} else {
increment(LayoutObjectsThatAreTextAndCanNotUseTheSimpleFontCodePath);
increment(CharactersInLayoutObjectsThatAreTextAndCanNotUseTheSimpleFontCodePath, t.textLength());
}
}
++m_depth;
// This refers to LayoutAnalyzer depth, which is generally closer to C++
// stack recursion depth, not layout tree depth or DOM tree depth.
m_counters[LayoutAnalyzerStackMaximumDepth] = max(m_counters[LayoutAnalyzerStackMaximumDepth], m_depth);
}
// Bounds of the LayoutObject relative to the scroller's visible content rect.
static LayoutRect relativeBounds(const LayoutObject* layoutObject,
const ScrollableArea* scroller) {
LayoutRect localBounds;
if (layoutObject->isBox()) {
localBounds = toLayoutBox(layoutObject)->borderBoxRect();
if (!layoutObject->hasOverflowClip()) {
// borderBoxRect doesn't include overflow content and floats.
LayoutUnit maxHeight =
std::max(localBounds.height(),
toLayoutBox(layoutObject)->layoutOverflowRect().height());
if (layoutObject->isLayoutBlockFlow() &&
toLayoutBlockFlow(layoutObject)->containsFloats()) {
// Note that lowestFloatLogicalBottom doesn't include floating
// grandchildren.
maxHeight = std::max(
maxHeight,
toLayoutBlockFlow(layoutObject)->lowestFloatLogicalBottom());
}
localBounds.setHeight(maxHeight);
}
} else if (layoutObject->isText()) {
// TODO(skobes): Use first and last InlineTextBox only?
for (InlineTextBox* box = toLayoutText(layoutObject)->firstTextBox(); box;
box = box->nextTextBox())
localBounds.unite(box->frameRect());
} else {
// Only LayoutBox and LayoutText are supported.
ASSERT_NOT_REACHED();
}
LayoutRect relativeBounds = LayoutRect(
scroller->localToVisibleContentQuad(FloatRect(localBounds), layoutObject)
.boundingBox());
return relativeBounds;
}
static bool blockIsRowOfLinks(const LayoutBlock* block)
{
// A "row of links" is a block for which:
// 1. It does not contain non-link text elements longer than 3 characters
// 2. It contains a minimum of 3 inline links and all links should
// have the same specified font size.
// 3. It should not contain <br> elements.
// 4. It should contain only inline elements unless they are containers,
// children of link elements or children of sub-containers.
int linkCount = 0;
LayoutObject* layoutObject = block->firstChild();
float matchingFontSize = -1;
while (layoutObject) {
if (!isPotentialClusterRoot(layoutObject)) {
if (layoutObject->isText() && toLayoutText(layoutObject)->text().stripWhiteSpace().length() > 3)
return false;
if (!layoutObject->isInline() || layoutObject->isBR())
return false;
}
if (layoutObject->style()->isLink()) {
linkCount++;
if (matchingFontSize < 0)
matchingFontSize = layoutObject->style()->specifiedFontSize();
else if (matchingFontSize != layoutObject->style()->specifiedFontSize())
return false;
// Skip traversing descendants of the link.
layoutObject = layoutObject->nextInPreOrderAfterChildren(block);
continue;
}
layoutObject = layoutObject->nextInPreOrder(block);
}
return (linkCount >= 3);
}
void LineBoxList::dirtyLinesFromChangedChild(LayoutObject* container, LayoutObject* child)
{
if (!container->parent() || (container->isLayoutBlock() && (container->selfNeedsLayout() || !container->isLayoutBlockFlow())))
return;
LayoutInline* inlineContainer = container->isLayoutInline() ? toLayoutInline(container) : 0;
InlineBox* firstBox = inlineContainer ? inlineContainer->firstLineBoxIncludingCulling() : firstLineBox();
// If we have no first line box, then just bail early.
if (!firstBox) {
// For an empty inline, go ahead and propagate the check up to our parent, unless the parent
// is already dirty.
if (container->isInline() && !container->ancestorLineBoxDirty()) {
container->parent()->dirtyLinesFromChangedChild(container);
container->setAncestorLineBoxDirty(); // Mark the container to avoid dirtying the same lines again across multiple destroy() calls of the same subtree.
}
return;
}
// Try to figure out which line box we belong in. First try to find a previous
// line box by examining our siblings. If we didn't find a line box, then use our
// parent's first line box.
RootInlineBox* box = 0;
LayoutObject* curr = 0;
ListHashSet<LayoutObject*, 16> potentialLineBreakObjects;
potentialLineBreakObjects.add(child);
for (curr = child->previousSibling(); curr; curr = curr->previousSibling()) {
potentialLineBreakObjects.add(curr);
if (curr->isFloatingOrOutOfFlowPositioned())
continue;
if (curr->isReplaced()) {
InlineBox* wrapper = toLayoutBox(curr)->inlineBoxWrapper();
if (wrapper)
box = &wrapper->root();
} else if (curr->isText()) {
InlineTextBox* textBox = toLayoutText(curr)->lastTextBox();
if (textBox)
box = &textBox->root();
} else if (curr->isLayoutInline()) {
InlineBox* lastSiblingBox = toLayoutInline(curr)->lastLineBoxIncludingCulling();
if (lastSiblingBox)
box = &lastSiblingBox->root();
}
if (box)
break;
}
if (!box) {
if (inlineContainer && !inlineContainer->alwaysCreateLineBoxes()) {
// https://bugs.webkit.org/show_bug.cgi?id=60778
// We may have just removed a <br> with no line box that was our first child. In this case
// we won't find a previous sibling, but firstBox can be pointing to a following sibling.
// This isn't good enough, since we won't locate the root line box that encloses the removed
// <br>. We have to just over-invalidate a bit and go up to our parent.
if (!inlineContainer->ancestorLineBoxDirty()) {
inlineContainer->parent()->dirtyLinesFromChangedChild(inlineContainer);
inlineContainer->setAncestorLineBoxDirty(); // Mark the container to avoid dirtying the same lines again across multiple destroy() calls of the same subtree.
}
return;
}
box = &firstBox->root();
}
// If we found a line box, then dirty it.
if (box) {
RootInlineBox* adjacentBox;
box->markDirty();
// dirty the adjacent lines that might be affected
// NOTE: we dirty the previous line because RootInlineBox objects cache
// the address of the first object on the next line after a BR, which we may be
// invalidating here. For more info, see how LayoutBlock::layoutInlineChildren
// calls setLineBreakInfo with the result of findNextLineBreak. findNextLineBreak,
// despite the name, actually returns the first LayoutObject after the BR.
// <rdar://problem/3849947> "Typing after pasting line does not appear until after window resize."
adjacentBox = box->prevRootBox();
if (adjacentBox)
adjacentBox->markDirty();
adjacentBox = box->nextRootBox();
// If |child| or any of its immediately previous siblings with culled lineboxes is the object after a line-break in |box| or the linebox after it
// then that means |child| actually sits on the linebox after |box| (or is its line-break object) and so we need to dirty it as well.
if (adjacentBox && (potentialLineBreakObjects.contains(box->lineBreakObj()) || potentialLineBreakObjects.contains(adjacentBox->lineBreakObj()) || child->isBR() || isIsolated(container->style()->unicodeBidi())))
adjacentBox->markDirty();
}
}
