static inline bool findPreviousAndNextAttributes(LayoutSVGText* root, LayoutSVGInlineText* locateElement, SVGTextLayoutAttributes*& previous, SVGTextLayoutAttributes*& next)
{
ASSERT(root);
ASSERT(locateElement);
bool stopAfterNext = false;
LayoutObject* current = root->firstChild();
while (current) {
if (current->isSVGInlineText()) {
LayoutSVGInlineText* text = toLayoutSVGInlineText(current);
if (locateElement != text) {
if (stopAfterNext) {
next = text->layoutAttributes();
return true;
}
previous = text->layoutAttributes();
} else {
stopAfterNext = true;
}
} else if (current->isSVGInline()) {
// Descend into text content (if possible).
if (LayoutObject* child = toLayoutSVGInline(current)->firstChild()) {
current = child;
continue;
}
}
current = current->nextInPreOrderAfterChildren(root);
}
return false;
}
static void walkTree(LayoutSVGText* start, LayoutSVGInlineText* stopAtLeaf, MeasureTextData* data)
{
LayoutObject* child = start->firstChild();
while (child) {
if (child->isSVGInlineText()) {
LayoutSVGInlineText* text = toLayoutSVGInlineText(child);
measureTextLayoutObject(text, data, !stopAtLeaf || stopAtLeaf == text);
if (stopAtLeaf && stopAtLeaf == text)
return;
} else if (child->isSVGInline()) {
// Visit children of text content elements.
if (LayoutObject* inlineChild = toLayoutSVGInline(child)->firstChild()) {
child = inlineChild;
continue;
}
}
child = child->nextInPreOrderAfterChildren(start);
}
}