RenderObject::SelectionState InlineTextBox::selectionState()
{
RenderObject::SelectionState state = object()->selectionState();
if (state == RenderObject::SelectionStart || state == RenderObject::SelectionEnd || state == RenderObject::SelectionBoth) {
int startPos, endPos;
object()->selectionStartEnd(startPos, endPos);
// The position after a hard line break is considered to be past its end.
int lastSelectable = start() + len() - (isLineBreak() ? 1 : 0);
bool start = (state != RenderObject::SelectionEnd && startPos >= m_start && startPos < m_start + m_len);
bool end = (state != RenderObject::SelectionStart && endPos > m_start && endPos <= lastSelectable);
if (start && end)
state = RenderObject::SelectionBoth;
else if (start)
state = RenderObject::SelectionStart;
else if (end)
state = RenderObject::SelectionEnd;
else if ((state == RenderObject::SelectionEnd || startPos < m_start) &&
(state == RenderObject::SelectionStart || endPos > lastSelectable))
state = RenderObject::SelectionInside;
else if (state == RenderObject::SelectionBoth)
state = RenderObject::SelectionNone;
}
return state;
}
bool SVGInlineTextBox::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit, LayoutUnit)
{
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING, result.hitTestRequest(), lineLayoutItem().style()->pointerEvents());
bool isVisible = lineLayoutItem().style()->visibility() == VISIBLE;
if (isVisible || !hitRules.requireVisible) {
if (hitRules.canHitBoundingBox
|| (hitRules.canHitStroke && (lineLayoutItem().style()->svgStyle().hasStroke() || !hitRules.requireStroke))
|| (hitRules.canHitFill && (lineLayoutItem().style()->svgStyle().hasFill() || !hitRules.requireFill))) {
LayoutPoint boxOrigin(x(), y());
boxOrigin.moveBy(accumulatedOffset);
LayoutRect rect(boxOrigin, size());
if (locationInContainer.intersects(rect)) {
LineLayoutSVGInlineText lineLayoutItem = LineLayoutSVGInlineText(this->lineLayoutItem());
ASSERT(lineLayoutItem.scalingFactor());
float baseline = lineLayoutItem.scaledFont().fontMetrics().floatAscent() / lineLayoutItem.scalingFactor();
FloatPoint floatLocation = FloatPoint(locationInContainer.point());
for (const SVGTextFragment& fragment : m_textFragments) {
FloatQuad fragmentQuad = fragment.boundingQuad(baseline);
if (fragmentQuad.containsPoint(floatLocation)) {
lineLayoutItem.updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
if (!result.addNodeToListBasedTestResult(lineLayoutItem.node(), locationInContainer, rect))
return true;
}
}
}
}
}
return false;
}
bool SVGInlineTextBox::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit, LayoutUnit)
{
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING, result.hitTestRequest(), layoutObject().style()->pointerEvents());
bool isVisible = layoutObject().style()->visibility() == VISIBLE;
if (isVisible || !hitRules.requireVisible) {
if (hitRules.canHitBoundingBox
|| (hitRules.canHitStroke && (layoutObject().style()->svgStyle().hasStroke() || !hitRules.requireStroke))
|| (hitRules.canHitFill && (layoutObject().style()->svgStyle().hasFill() || !hitRules.requireFill))) {
FloatPointWillBeLayoutPoint boxOrigin(x(), y());
boxOrigin.moveBy(accumulatedOffset);
FloatRectWillBeLayoutRect rect(boxOrigin, size());
// FIXME: both calls to rawValue() below is temporary and should be removed once the transition
// to LayoutUnit-based types is complete (crbug.com/321237)
if (locationInContainer.intersects(rect.rawValue())) {
layoutObject().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
if (!result.addNodeToListBasedTestResult(layoutObject().node(), locationInContainer, rect.rawValue()))
return true;
}
}
}
return false;
}
bool InlineTextBox::isSelected(int startPos, int endPos) const {
int sPos = std::max(startPos - m_start, 0);
// The position after a hard line break is considered to be past its end.
// See the corresponding code in InlineTextBox::getSelectionState.
int ePos = std::min(endPos - m_start, int(m_len) + (isLineBreak() ? 0 : 1));
return (sPos < ePos);
}
int InlineTextBox::offsetForPosition(int _x, bool includePartialGlyphs) const
{
if (isLineBreak())
return 0;
RenderText* text = static_cast<RenderText*>(m_object);
RenderStyle *style = text->style(m_firstLine);
const Font* f = &style->font();
return f->offsetForPosition(TextRun(textObject()->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride || style->visuallyOrdered()),
_x - m_x, includePartialGlyphs);
}
bool InlineTextBox::nodeAtPoint(const HitTestRequest&, HitTestResult& result, int x, int y, int tx, int ty)
{
if (isLineBreak())
return false;
IntRect rect(tx + m_x, ty + m_y, m_width, m_height);
if (m_truncation != cFullTruncation && visibleToHitTesting() && rect.contains(x, y)) {
object()->updateHitTestResult(result, IntPoint(x - tx, y - ty));
return true;
}
return false;
}
bool SVGInlineTextBox::nodeAtPoint(HitTestResult& result,
const HitTestLocation& locationInContainer,
const LayoutPoint& accumulatedOffset,
LayoutUnit,
LayoutUnit) {
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING,
result.hitTestRequest(),
getLineLayoutItem().style()->pointerEvents());
bool isVisible =
getLineLayoutItem().style()->visibility() == EVisibility::Visible;
if (isVisible || !hitRules.requireVisible) {
if (hitRules.canHitBoundingBox ||
(hitRules.canHitStroke &&
(getLineLayoutItem().style()->svgStyle().hasStroke() ||
!hitRules.requireStroke)) ||
(hitRules.canHitFill &&
(getLineLayoutItem().style()->svgStyle().hasFill() ||
!hitRules.requireFill))) {
LayoutRect rect(topLeft(), LayoutSize(logicalWidth(), logicalHeight()));
rect.moveBy(accumulatedOffset);
if (locationInContainer.intersects(rect)) {
LineLayoutSVGInlineText lineLayoutItem =
LineLayoutSVGInlineText(this->getLineLayoutItem());
const SimpleFontData* fontData =
lineLayoutItem.scaledFont().primaryFont();
DCHECK(fontData);
if (!fontData)
return false;
DCHECK(lineLayoutItem.scalingFactor());
float baseline = fontData->getFontMetrics().floatAscent() /
lineLayoutItem.scalingFactor();
FloatPoint floatLocation = FloatPoint(locationInContainer.point());
for (const SVGTextFragment& fragment : m_textFragments) {
FloatQuad fragmentQuad = fragment.boundingQuad(baseline);
if (fragmentQuad.containsPoint(floatLocation)) {
lineLayoutItem.updateHitTestResult(
result,
locationInContainer.point() - toLayoutSize(accumulatedOffset));
if (result.addNodeToListBasedTestResult(lineLayoutItem.node(),
locationInContainer,
rect) == StopHitTesting)
return true;
}
}
}
}
}
return false;
}
SelectionState InlineTextBox::getSelectionState() const {
SelectionState state = getLineLayoutItem().getSelectionState();
if (state == SelectionStart || state == SelectionEnd ||
state == SelectionBoth) {
int startPos, endPos;
getLineLayoutItem().selectionStartEnd(startPos, endPos);
// The position after a hard line break is considered to be past its end.
// See the corresponding code in InlineTextBox::isSelected.
int lastSelectable = start() + len() - (isLineBreak() ? 1 : 0);
// FIXME: Remove -webkit-line-break: LineBreakAfterWhiteSpace.
int endOfLineAdjustmentForCSSLineBreak =
getLineLayoutItem().style()->getLineBreak() == LineBreakAfterWhiteSpace
? -1
: 0;
bool start =
(state != SelectionEnd && startPos >= m_start &&
startPos <= m_start + m_len + endOfLineAdjustmentForCSSLineBreak);
bool end = (state != SelectionStart && endPos > m_start &&
endPos <= lastSelectable);
if (start && end)
state = SelectionBoth;
else if (start)
state = SelectionStart;
else if (end)
state = SelectionEnd;
else if ((state == SelectionEnd || startPos < m_start) &&
(state == SelectionStart || endPos > lastSelectable))
state = SelectionInside;
else if (state == SelectionBoth)
state = SelectionNone;
}
// If there are ellipsis following, make sure their selection is updated.
if (m_truncation != cNoTruncation && root().ellipsisBox()) {
EllipsisBox* ellipsis = root().ellipsisBox();
if (state != SelectionNone) {
int start, end;
selectionStartEnd(start, end);
// The ellipsis should be considered to be selected if the end of the
// selection is past the beginning of the truncation and the beginning of
// the selection is before or at the beginning of the truncation.
ellipsis->setSelectionState(end >= m_truncation && start <= m_truncation
? SelectionInside
: SelectionNone);
} else {
ellipsis->setSelectionState(SelectionNone);
}
}
return state;
}
int InlineTextBox::offsetForPosition(LayoutUnit lineOffset, bool includePartialGlyphs) const
{
if (isLineBreak())
return 0;
if (lineOffset - logicalLeft() > logicalWidth())
return isLeftToRightDirection() ? len() : 0;
if (lineOffset - logicalLeft() < 0)
return isLeftToRightDirection() ? 0 : len();
LineLayoutText text = lineLayoutItem();
const ComputedStyle& style = text.styleRef(isFirstLineStyle());
const Font& font = style.font();
return font.offsetForPosition(constructTextRun(style, font), (lineOffset - logicalLeft()).toFloat(), includePartialGlyphs);
}
bool InlineTextBox::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit /* lineTop */, LayoutUnit /*lineBottom*/)
{
if (isLineBreak() || m_truncation == cFullTruncation)
return false;
LayoutPoint boxOrigin = locationIncludingFlipping();
boxOrigin.moveBy(accumulatedOffset);
LayoutRect rect(boxOrigin, size());
if (visibleToHitTestRequest(result.hitTestRequest()) && locationInContainer.intersects(rect)) {
getLineLayoutItem().updateHitTestResult(result, flipForWritingMode(locationInContainer.point() - toLayoutSize(accumulatedOffset)));
if (result.addNodeToListBasedTestResult(getLineLayoutItem().node(), locationInContainer, rect) == StopHitTesting)
return true;
}
return false;
}
LayoutUnit InlineTextBox::positionForOffset(int offset) const
{
ASSERT(offset >= m_start);
ASSERT(offset <= m_start + m_len);
if (isLineBreak())
return logicalLeft();
LineLayoutText text = lineLayoutItem();
const ComputedStyle& styleToUse = text.styleRef(isFirstLineStyle());
const Font& font = styleToUse.font();
int from = !isLeftToRightDirection() ? offset - m_start : 0;
int to = !isLeftToRightDirection() ? m_len : offset - m_start;
// FIXME: Do we need to add rightBearing here?
return font.selectionRectForText(constructTextRun(styleToUse, font), IntPoint(logicalLeft(), 0), 0, from, to).maxX();
}
int InlineTextBox::positionForOffset(int offset) const
{
ASSERT(offset >= m_start);
ASSERT(offset <= m_start + m_len);
if (isLineBreak())
return m_x;
RenderText* text = static_cast<RenderText*>(m_object);
const Font& f = text->style(m_firstLine)->font();
int from = direction() == RTL ? offset - m_start : 0;
int to = direction() == RTL ? m_len : offset - m_start;
// FIXME: Do we need to add rightBearing here?
return enclosingIntRect(f.selectionRectForText(TextRun(text->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride),
IntPoint(m_x, 0), 0, from, to)).right();
}
bool RenderTextLineBoxes::containsOffset(const RenderText& renderer, unsigned offset, OffsetType type) const
{
for (auto box = m_first; box; box = box->nextTextBox()) {
if (offset < box->start() && !renderer.containsReversedText())
return false;
unsigned boxEnd = box->start() + box->len();
if (offset >= box->start() && offset <= boxEnd) {
if (offset == boxEnd && (type == CharacterOffset || box->isLineBreak()))
continue;
if (type == CharacterOffset)
return true;
// Return false for offsets inside composed characters.
return !offset || offset == static_cast<unsigned>(renderer.nextOffset(renderer.previousOffset(offset)));
}
}
return false;
}
bool InlineTextBox::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit /* lineTop */, LayoutUnit /*lineBottom*/)
{
if (isLineBreak())
return false;
LayoutPoint boxOrigin = locationIncludingFlipping();
boxOrigin.moveBy(accumulatedOffset);
LayoutRect rect(boxOrigin, size());
// FIXME: both calls to rawValue() below is temporary and should be removed once the transition
// to LayoutUnit-based types is complete (crbug.com/321237)
if (m_truncation != cFullTruncation && visibleToHitTestRequest(result.hitTestRequest()) && locationInContainer.intersects(rect)) {
lineLayoutItem().updateHitTestResult(result, flipForWritingMode(locationInContainer.point() - toLayoutSize(accumulatedOffset)));
if (!result.addNodeToListBasedTestResult(lineLayoutItem().node(), locationInContainer, rect))
return true;
}
return false;
}
VisiblePosition RenderTextLineBoxes::positionForPoint(const RenderText& renderer, const LayoutPoint& point) const
{
if (!m_first || !renderer.textLength())
return renderer.createVisiblePosition(0, DOWNSTREAM);
LayoutUnit pointLineDirection = m_first->isHorizontal() ? point.x() : point.y();
LayoutUnit pointBlockDirection = m_first->isHorizontal() ? point.y() : point.x();
bool blocksAreFlipped = renderer.style().isFlippedBlocksWritingMode();
InlineTextBox* lastBox = nullptr;
for (auto box = m_first; box; box = box->nextTextBox()) {
if (box->isLineBreak() && !box->prevLeafChild() && box->nextLeafChild() && !box->nextLeafChild()->isLineBreak())
box = box->nextTextBox();
auto& rootBox = box->root();
LayoutUnit top = std::min(rootBox.selectionTop(), rootBox.lineTop());
if (pointBlockDirection > top || (!blocksAreFlipped && pointBlockDirection == top)) {
LayoutUnit bottom = rootBox.selectionBottom();
if (rootBox.nextRootBox())
bottom = std::min(bottom, rootBox.nextRootBox()->lineTop());
if (pointBlockDirection < bottom || (blocksAreFlipped && pointBlockDirection == bottom)) {
ShouldAffinityBeDownstream shouldAffinityBeDownstream;
#if PLATFORM(IOS)
if (pointLineDirection != box->logicalLeft() && point.x() < box->x() + box->logicalWidth()) {
int half = box->x() + box->logicalWidth() / 2;
EAffinity affinity = point.x() < half ? DOWNSTREAM : VP_UPSTREAM_IF_POSSIBLE;
return renderer.createVisiblePosition(box->offsetForPosition(pointLineDirection) + box->start(), affinity);
}
#endif
if (lineDirectionPointFitsInBox(pointLineDirection, *box, shouldAffinityBeDownstream))
return createVisiblePositionAfterAdjustingOffsetForBiDi(*box, box->offsetForPosition(pointLineDirection), shouldAffinityBeDownstream);
}
}
lastBox = box;
}
if (lastBox) {
ShouldAffinityBeDownstream shouldAffinityBeDownstream;
lineDirectionPointFitsInBox(pointLineDirection, *lastBox, shouldAffinityBeDownstream);
return createVisiblePositionAfterAdjustingOffsetForBiDi(*lastBox, lastBox->offsetForPosition(pointLineDirection) + lastBox->start(), shouldAffinityBeDownstream);
}
return renderer.createVisiblePosition(0, DOWNSTREAM);
}
bool SVGInlineTextBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const LayoutPoint& pointInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit, LayoutUnit)
{
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING, request, renderer()->style()->pointerEvents());
bool isVisible = renderer()->style()->visibility() == VISIBLE;
if (isVisible || !hitRules.requireVisible) {
if ((hitRules.canHitStroke && (renderer()->style()->svgStyle()->hasStroke() || !hitRules.requireStroke))
|| (hitRules.canHitFill && (renderer()->style()->svgStyle()->hasFill() || !hitRules.requireFill))) {
FloatPoint boxOrigin(x(), y());
boxOrigin.moveBy(accumulatedOffset);
FloatRect rect(boxOrigin, size());
if (rect.intersects(result.rectForPoint(pointInContainer))) {
renderer()->updateHitTestResult(result, pointInContainer - toLayoutSize(accumulatedOffset));
if (!result.addNodeToRectBasedTestResult(renderer()->node(), pointInContainer, rect))
return true;
}
}
}
return false;
}
bool SVGInlineTextBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit, LayoutUnit, HitTestAction)
{
// FIXME: integrate with InlineTextBox::nodeAtPoint better.
ASSERT(!isLineBreak());
PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_TEXT_HITTESTING, request, renderer().style().pointerEvents());
bool isVisible = renderer().style().visibility() == VISIBLE;
if (isVisible || !hitRules.requireVisible) {
if ((hitRules.canHitStroke && (renderer().style().svgStyle().hasStroke() || !hitRules.requireStroke))
|| (hitRules.canHitFill && (renderer().style().svgStyle().hasFill() || !hitRules.requireFill))) {
FloatPoint boxOrigin(x(), y());
boxOrigin.moveBy(accumulatedOffset);
FloatRect rect(boxOrigin, size());
if (locationInContainer.intersects(rect)) {
float scalingFactor = renderer().scalingFactor();
ASSERT(scalingFactor);
float baseline = renderer().scaledFont().fontMetrics().floatAscent() / scalingFactor;
AffineTransform fragmentTransform;
for (auto& fragment : m_textFragments) {
FloatQuad fragmentQuad(FloatRect(fragment.x, fragment.y - baseline, fragment.width, fragment.height));
fragment.buildFragmentTransform(fragmentTransform);
if (!fragmentTransform.isIdentity())
fragmentQuad = fragmentTransform.mapQuad(fragmentQuad);
if (fragmentQuad.containsPoint(locationInContainer.point())) {
renderer().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(accumulatedOffset));
if (!result.addNodeToRectBasedTestResult(&renderer().textNode(), request, locationInContainer, rect))
return true;
}
}
}
}
}
return false;
}
bool InlineTextBox::containsCaretOffset(int offset) const
{
// Offsets before the box are never "in".
if (offset < m_start)
return false;
int pastEnd = m_start + m_len;
// Offsets inside the box (not at either edge) are always "in".
if (offset < pastEnd)
return true;
// Offsets outside the box are always "out".
if (offset > pastEnd)
return false;
// Offsets at the end are "out" for line breaks (they are on the next line).
if (isLineBreak())
return false;
// Offsets at the end are "in" for normal boxes (but the caller has to check affinity).
return true;
}
static bool createLineRuns(LineState& line, const LineState& previousLine, Layout::RunVector& runs, TextFragmentIterator& textFragmentIterator)
{
const auto& style = textFragmentIterator.style();
line.setCollapedWhitespaceWidth(style.spaceWidth + style.wordSpacing);
bool lineCanBeWrapped = style.wrapLines || style.breakWordOnOverflow;
auto fragment = firstFragment(textFragmentIterator, line, previousLine, runs);
while (fragment.type() != TextFragmentIterator::TextFragment::ContentEnd) {
// Hard linebreak.
if (fragment.isLineBreak()) {
// Add the new line fragment only if there's nothing on the line. (otherwise the extra new line character would show up at the end of the content.)
if (line.isEmpty() || fragment.type() == TextFragmentIterator::TextFragment::HardLineBreak) {
if (style.textAlign == RIGHT || style.textAlign == WEBKIT_RIGHT)
line.removeTrailingWhitespace(runs);
line.appendFragmentAndCreateRunIfNeeded(fragment, runs);
}
break;
}
if (lineCanBeWrapped && !line.fits(fragment.width())) {
// Overflow wrapping behaviour:
// 1. Whitesapce collapse on: whitespace is skipped. Jump to next line.
// 2. Whitespace collapse off: whitespace is wrapped.
// 3. First, non-whitespace fragment is either wrapped or kept on the line. (depends on overflow-wrap)
// 4. Non-whitespace fragment when there's already another fragment on the line gets pushed to the next line.
bool emptyLine = line.isEmpty();
// Whitespace fragment.
if (fragment.type() == TextFragmentIterator::TextFragment::Whitespace) {
if (!style.collapseWhitespace) {
// Split the fragment; (modified)fragment stays on this line, overflowedFragment is pushed to next line.
line.setOverflowedFragment(splitFragmentToFitLine(fragment, line.availableWidth() - line.width(), emptyLine, textFragmentIterator));
line.appendFragmentAndCreateRunIfNeeded(fragment, runs);
}
// When whitespace collapse is on, whitespace that doesn't fit is simply skipped.
break;
}
// Non-whitespace fragment. (!style.wrapLines: bug138102(preserve existing behavior)
if ((emptyLine && style.breakWordOnOverflow) || !style.wrapLines) {
// Split the fragment; (modified)fragment stays on this line, overflowedFragment is pushed to next line.
line.setOverflowedFragment(splitFragmentToFitLine(fragment, line.availableWidth() - line.width(), emptyLine, textFragmentIterator));
line.appendFragmentAndCreateRunIfNeeded(fragment, runs);
break;
}
// Non-breakable non-whitespace first fragment. Add it to the current line. -it overflows though.
ASSERT(fragment.type() == TextFragmentIterator::TextFragment::NonWhitespace);
if (emptyLine) {
forceFragmentToLine(line, textFragmentIterator, runs, fragment);
break;
}
// Non-breakable non-whitespace fragment when there's already content on the line. Push it to the next line.
if (line.lastFragment().overlapsToNextRenderer()) {
// Check if this fragment is a continuation of a previous segment. In such cases, we need to remove them all.
const auto& lastCompleteFragment = line.revertToLastCompleteFragment(runs);
textFragmentIterator.revertToEndOfFragment(lastCompleteFragment);
break;
}
line.setOverflowedFragment(fragment);
break;
}
line.appendFragmentAndCreateRunIfNeeded(fragment, runs);
// Find the next text fragment.
fragment = textFragmentIterator.nextTextFragment(line.width());
}
return (fragment.type() == TextFragmentIterator::TextFragment::ContentEnd && line.overflowedFragment().isEmpty()) || line.overflowedFragment().type() == TextFragmentIterator::TextFragment::ContentEnd;
}
void parseWords(QFixed minResizeWidth, int32 blockFrom) {
LineBreakHelper lbh;
int item = -1;
int newItem = eng->findItem(0);
style::align alignment = eng->option.alignment();
const QCharAttributes *attributes = eng->attributes();
if (!attributes)
return;
int end = 0;
lbh.logClusters = eng->layoutData->logClustersPtr;
block->_lpadding = 0;
block->_words.clear();
int wordStart = lbh.currentPosition;
bool addingEachGrapheme = false;
int lastGraphemeBoundaryPosition = -1;
ScriptLine lastGraphemeBoundaryLine;
while (newItem < eng->layoutData->items.size()) {
if (newItem != item) {
item = newItem;
const QScriptItem ¤t = eng->layoutData->items[item];
if (!current.num_glyphs) {
eng->shape(item);
attributes = eng->attributes();
if (!attributes)
return;
lbh.logClusters = eng->layoutData->logClustersPtr;
}
lbh.currentPosition = current.position;
end = current.position + eng->length(item);
lbh.glyphs = eng->shapedGlyphs(¤t);
QFontEngine *fontEngine = eng->fontEngine(current);
if (lbh.fontEngine != fontEngine) {
lbh.fontEngine = fontEngine;
}
}
const QScriptItem ¤t = eng->layoutData->items[item];
if (attributes[lbh.currentPosition].whiteSpace) {
while (lbh.currentPosition < end && attributes[lbh.currentPosition].whiteSpace)
addNextCluster(lbh.currentPosition, end, lbh.spaceData, lbh.glyphCount,
current, lbh.logClusters, lbh.glyphs);
if (block->_words.isEmpty()) {
block->_lpadding = lbh.spaceData.textWidth;
} else {
block->_words.back().add_rpadding(lbh.spaceData.textWidth);
block->_width += lbh.spaceData.textWidth;
}
lbh.spaceData.length = 0;
lbh.spaceData.textWidth = 0;
wordStart = lbh.currentPosition;
addingEachGrapheme = false;
lastGraphemeBoundaryPosition = -1;
lastGraphemeBoundaryLine = ScriptLine();
} else {
do {
addNextCluster(lbh.currentPosition, end, lbh.tmpData, lbh.glyphCount,
current, lbh.logClusters, lbh.glyphs);
if (lbh.currentPosition >= eng->layoutData->string.length()
|| attributes[lbh.currentPosition].whiteSpace
|| isLineBreak(attributes, lbh.currentPosition)) {
lbh.calculateRightBearing();
block->_words.push_back(TextWord(wordStart + blockFrom, lbh.tmpData.textWidth, -lbh.negativeRightBearing()));
block->_width += lbh.tmpData.textWidth;
lbh.tmpData.textWidth = 0;
lbh.tmpData.length = 0;
wordStart = lbh.currentPosition;
break;
} else if (attributes[lbh.currentPosition].graphemeBoundary) {
if (!addingEachGrapheme && lbh.tmpData.textWidth > minResizeWidth) {
if (lastGraphemeBoundaryPosition >= 0) {
lbh.calculateRightBearingForPreviousGlyph();
block->_words.push_back(TextWord(wordStart + blockFrom, -lastGraphemeBoundaryLine.textWidth, -lbh.negativeRightBearing()));
block->_width += lastGraphemeBoundaryLine.textWidth;
lbh.tmpData.textWidth -= lastGraphemeBoundaryLine.textWidth;
lbh.tmpData.length -= lastGraphemeBoundaryLine.length;
wordStart = lastGraphemeBoundaryPosition;
}
addingEachGrapheme = true;
}
if (addingEachGrapheme) {
lbh.calculateRightBearing();
block->_words.push_back(TextWord(wordStart + blockFrom, -lbh.tmpData.textWidth, -lbh.negativeRightBearing()));
block->_width += lbh.tmpData.textWidth;
lbh.tmpData.textWidth = 0;
lbh.tmpData.length = 0;
wordStart = lbh.currentPosition;
} else {
lastGraphemeBoundaryPosition = lbh.currentPosition;
lastGraphemeBoundaryLine = lbh.tmpData;
lbh.saveCurrentGlyph();
}
}
} while (lbh.currentPosition < end);
}
if (lbh.currentPosition == end)
newItem = item + 1;
}
if (block->_words.isEmpty()) {
block->_rpadding = 0;
} else {
block->_rpadding = block->_words.back().f_rpadding();
block->_width -= block->_rpadding;
block->_words.squeeze();
}
}
void InlineTextBox::paint(RenderObject::PaintInfo& paintInfo, int tx, int ty)
{
if (isLineBreak() || !object()->shouldPaintWithinRoot(paintInfo) || object()->style()->visibility() != VISIBLE ||
m_truncation == cFullTruncation || paintInfo.phase == PaintPhaseOutline)
return;
ASSERT(paintInfo.phase != PaintPhaseSelfOutline && paintInfo.phase != PaintPhaseChildOutlines);
int xPos = tx + m_x - parent()->maxHorizontalVisualOverflow();
int w = width() + 2 * parent()->maxHorizontalVisualOverflow();
if (xPos >= paintInfo.rect.right() || xPos + w <= paintInfo.rect.x())
return;
bool isPrinting = textObject()->document()->printing();
// Determine whether or not we're selected.
bool haveSelection = !isPrinting && paintInfo.phase != PaintPhaseTextClip && selectionState() != RenderObject::SelectionNone;
if (!haveSelection && paintInfo.phase == PaintPhaseSelection)
// When only painting the selection, don't bother to paint if there is none.
return;
GraphicsContext* context = paintInfo.context;
// Determine whether or not we have composition underlines to draw.
bool containsComposition = object()->document()->frame()->editor()->compositionNode() == object()->node();
bool useCustomUnderlines = containsComposition && object()->document()->frame()->editor()->compositionUsesCustomUnderlines();
// Set our font.
RenderStyle* styleToUse = object()->style(m_firstLine);
int d = styleToUse->textDecorationsInEffect();
const Font* font = &styleToUse->font();
if (*font != context->font())
context->setFont(*font);
// 1. Paint backgrounds behind text if needed. Examples of such backgrounds include selection
// and composition underlines.
if (paintInfo.phase != PaintPhaseSelection && paintInfo.phase != PaintPhaseTextClip && !isPrinting) {
#if PLATFORM(MAC)
// Custom highlighters go behind everything else.
if (styleToUse->highlight() != nullAtom && !context->paintingDisabled())
paintCustomHighlight(tx, ty, styleToUse->highlight());
#endif
if (containsComposition && !useCustomUnderlines)
paintCompositionBackground(context, tx, ty, styleToUse, font,
object()->document()->frame()->editor()->compositionStart(),
object()->document()->frame()->editor()->compositionEnd());
paintDocumentMarkers(context, tx, ty, styleToUse, font, true);
if (haveSelection && !useCustomUnderlines)
paintSelection(context, tx, ty, styleToUse, font);
}
// 2. Now paint the foreground, including text and decorations like underline/overline (in quirks mode only).
if (m_len <= 0)
return;
Color textFillColor;
Color textStrokeColor;
float textStrokeWidth = styleToUse->textStrokeWidth();
ShadowData* textShadow = paintInfo.forceBlackText ? 0 : styleToUse->textShadow();
if (paintInfo.forceBlackText) {
textFillColor = Color::black;
textStrokeColor = Color::black;
} else {
textFillColor = styleToUse->textFillColor();
if (!textFillColor.isValid())
textFillColor = styleToUse->color();
// Make the text fill color legible against a white background
if (styleToUse->forceBackgroundsToWhite())
textFillColor = correctedTextColor(textFillColor, Color::white);
textStrokeColor = styleToUse->textStrokeColor();
if (!textStrokeColor.isValid())
textStrokeColor = styleToUse->color();
// Make the text stroke color legible against a white background
if (styleToUse->forceBackgroundsToWhite())
textStrokeColor = correctedTextColor(textStrokeColor, Color::white);
}
bool paintSelectedTextOnly = (paintInfo.phase == PaintPhaseSelection);
bool paintSelectedTextSeparately = false;
Color selectionFillColor = textFillColor;
Color selectionStrokeColor = textStrokeColor;
float selectionStrokeWidth = textStrokeWidth;
ShadowData* selectionShadow = textShadow;
if (haveSelection) {
// Check foreground color first.
Color foreground = paintInfo.forceBlackText ? Color::black : object()->selectionForegroundColor();
if (foreground.isValid() && foreground != selectionFillColor) {
if (!paintSelectedTextOnly)
paintSelectedTextSeparately = true;
selectionFillColor = foreground;
}
if (RenderStyle* pseudoStyle = object()->getCachedPseudoStyle(RenderStyle::SELECTION)) {
ShadowData* shadow = paintInfo.forceBlackText ? 0 : pseudoStyle->textShadow();
if (shadow != selectionShadow) {
if (!paintSelectedTextOnly)
paintSelectedTextSeparately = true;
selectionShadow = shadow;
}
float strokeWidth = pseudoStyle->textStrokeWidth();
if (strokeWidth != selectionStrokeWidth) {
if (!paintSelectedTextOnly)
paintSelectedTextSeparately = true;
selectionStrokeWidth = strokeWidth;
}
Color stroke = paintInfo.forceBlackText ? Color::black : pseudoStyle->textStrokeColor();
if (!stroke.isValid())
stroke = pseudoStyle->color();
if (stroke != selectionStrokeColor) {
if (!paintSelectedTextOnly)
paintSelectedTextSeparately = true;
selectionStrokeColor = stroke;
}
}
}
IntPoint textOrigin(m_x + tx, m_y + ty + m_baseline);
TextRun textRun(textObject()->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride || styleToUse->visuallyOrdered());
int sPos = 0;
int ePos = 0;
if (paintSelectedTextOnly || paintSelectedTextSeparately)
selectionStartEnd(sPos, ePos);
if (!paintSelectedTextOnly) {
// For stroked painting, we have to change the text drawing mode. It's probably dangerous to leave that mutated as a side
// effect, so only when we know we're stroking, do a save/restore.
if (textStrokeWidth > 0)
context->save();
updateGraphicsContext(context, textFillColor, textStrokeColor, textStrokeWidth);
if (!paintSelectedTextSeparately || ePos <= sPos) {
// FIXME: Truncate right-to-left text correctly.
paintTextWithShadows(context, textRun, 0, m_truncation == cNoTruncation ? m_len : m_truncation, textOrigin, m_x + tx, m_y + ty, width(), height(), textShadow, textStrokeWidth > 0);
} else
paintTextWithShadows(context, textRun, ePos, sPos, textOrigin, m_x + tx, m_y + ty, width(), height(), textShadow, textStrokeWidth > 0);
if (textStrokeWidth > 0)
context->restore();
}
if ((paintSelectedTextOnly || paintSelectedTextSeparately) && sPos < ePos) {
// paint only the text that is selected
if (selectionStrokeWidth > 0)
context->save();
updateGraphicsContext(context, selectionFillColor, selectionStrokeColor, selectionStrokeWidth);
paintTextWithShadows(context, textRun, sPos, ePos, textOrigin, m_x + tx, m_y + ty, width(), height(), selectionShadow, selectionStrokeWidth > 0);
if (selectionStrokeWidth > 0)
context->restore();
}
// Paint decorations
if (d != TDNONE && paintInfo.phase != PaintPhaseSelection && styleToUse->htmlHacks()) {
context->setStrokeColor(styleToUse->color());
paintDecoration(context, tx, ty, d, textShadow);
}
if (paintInfo.phase == PaintPhaseForeground) {
paintDocumentMarkers(context, tx, ty, styleToUse, font, false);
if (useCustomUnderlines) {
const Vector<CompositionUnderline>& underlines = object()->document()->frame()->editor()->customCompositionUnderlines();
size_t numUnderlines = underlines.size();
for (size_t index = 0; index < numUnderlines; ++index) {
const CompositionUnderline& underline = underlines[index];
if (underline.endOffset <= start())
// underline is completely before this run. This might be an underline that sits
// before the first run we draw, or underlines that were within runs we skipped
// due to truncation.
continue;
if (underline.startOffset <= end()) {
// underline intersects this run. Paint it.
paintCompositionUnderline(context, tx, ty, underline);
if (underline.endOffset > end() + 1)
// underline also runs into the next run. Bail now, no more marker advancement.
break;
} else
// underline is completely after this run, bail. A later run will paint it.
break;
}
}
}
}
