TrailingObjects.cpp [plain text]
#include "config.h"
#include "TrailingObjects.h"
#include "InlineIterator.h"
namespace WebCore {
void TrailingObjects::updateWhitespaceCollapsingTransitionsForTrailingBoxes(LineWhitespaceCollapsingState& lineWhitespaceCollapsingState, const InlineIterator& lBreak, CollapseFirstSpaceOrNot collapseFirstSpace)
{
if (!m_whitespace)
return;
if (lineWhitespaceCollapsingState.numTransitions() % 2) {
int trailingSpaceTransition = lineWhitespaceCollapsingState.numTransitions() - 1;
for ( ; trailingSpaceTransition > 0 && lineWhitespaceCollapsingState.transitions()[trailingSpaceTransition].renderer() != m_whitespace; --trailingSpaceTransition) { }
ASSERT(trailingSpaceTransition >= 0);
if (collapseFirstSpace == CollapseFirstSpace)
lineWhitespaceCollapsingState.decrementTransitionAt(trailingSpaceTransition);
size_t currentTransition = trailingSpaceTransition + 1;
for (size_t i = 0; i < m_boxes.size(); ++i) {
if (currentTransition >= lineWhitespaceCollapsingState.numTransitions()) {
lineWhitespaceCollapsingState.ensureLineBoxInsideIgnoredSpaces(m_boxes[i]);
} else {
ASSERT(lineWhitespaceCollapsingState.transitions()[currentTransition].renderer() == &(m_boxes[i].get()));
ASSERT(lineWhitespaceCollapsingState.transitions()[currentTransition + 1].renderer() == &(m_boxes[i].get()));
}
currentTransition += 2;
}
} else if (!lBreak.renderer()) {
ASSERT(m_whitespace->isText());
ASSERT(collapseFirstSpace == CollapseFirstSpace);
unsigned length = m_whitespace->textLength();
unsigned pos = length >= 2 ? length - 2 : UINT_MAX;
InlineIterator endMid(0, m_whitespace, pos);
lineWhitespaceCollapsingState.startIgnoringSpaces(endMid);
for (size_t i = 0; i < m_boxes.size(); ++i)
lineWhitespaceCollapsingState.ensureLineBoxInsideIgnoredSpaces(m_boxes[i]);
}
}
}