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 Position::inRenderedText() const
{
if (isNull() || !node()->isTextNode())
return false;
RenderObject *renderer = node()->renderer();
if (!renderer)
return false;
RenderText *textRenderer = static_cast<RenderText *>(renderer);
for (InlineTextBox *box = textRenderer->firstTextBox(); box; box = box->nextTextBox()) {
if (offset() < box->m_start && !textRenderer->containsReversedText()) {
// The offset we're looking for is before this node
// this means the offset must be in content that is
// not rendered. Return false.
return false;
}
if (box->containsCaretOffset(offset()))
// Return false for offsets inside composed characters.
return offset() == 0 || offset() == textRenderer->nextOffset(textRenderer->previousOffset(offset()));
}
return false;
}
