void SVGRootInlineBox::computePerCharacterLayoutInformation()
{
RenderSVGText* textRoot = toRenderSVGText(&blockFlow());
ASSERT(textRoot);
Vector<SVGTextLayoutAttributes*>& layoutAttributes = textRoot->layoutAttributes();
if (layoutAttributes.isEmpty())
return;
if (textRoot->needsReordering())
reorderValueLists(layoutAttributes);
// Perform SVG text layout phase two (see SVGTextLayoutEngine for details).
SVGTextLayoutEngine characterLayout(layoutAttributes);
layoutCharactersInTextBoxes(this, characterLayout);
// Perform SVG text layout phase three (see SVGTextChunkBuilder for details).
characterLayout.finishLayout();
// Perform SVG text layout phase four
// Position & resize all SVGInlineText/FlowBoxes in the inline box tree, resize the root box as well as the RenderSVGText parent block.
FloatRect childRect;
layoutChildBoxes(this, &childRect);
layoutRootBox(childRect);
}
void SVGRootInlineBox::layoutChildBoxes(InlineFlowBox* start, FloatRect* childRect)
{
for (InlineBox* child = start->firstChild(); child; child = child->nextOnLine()) {
FloatRect boxRect;
if (child->isSVGInlineTextBox()) {
ASSERT(child->renderer().isSVGInlineText());
SVGInlineTextBox* textBox = toSVGInlineTextBox(child);
boxRect = textBox->calculateBoundaries();
textBox->setX(boxRect.x());
textBox->setY(boxRect.y());
textBox->setLogicalWidth(boxRect.width());
textBox->setLogicalHeight(boxRect.height());
} else {
// Skip generated content.
if (!child->renderer().node())
continue;
ASSERT_WITH_SECURITY_IMPLICATION(child->isInlineFlowBox());
SVGInlineFlowBox* flowBox = toSVGInlineFlowBox(child);
layoutChildBoxes(flowBox);
boxRect = flowBox->calculateBoundaries();
flowBox->setX(boxRect.x());
flowBox->setY(boxRect.y());
flowBox->setLogicalWidth(boxRect.width());
flowBox->setLogicalHeight(boxRect.height());
}
if (childRect)
childRect->unite(boxRect);
}
}
void SVGRootInlineBox::layoutChildBoxes(InlineFlowBox* start)
{
for (InlineBox* child = start->firstChild(); child; child = child->nextOnLine()) {
if (child->isSVGInlineTextBox()) {
ASSERT(child->renderer());
ASSERT(child->renderer()->isSVGInlineText());
SVGInlineTextBox* textBox = static_cast<SVGInlineTextBox*>(child);
IntRect boxRect = textBox->calculateBoundaries();
textBox->setX(boxRect.x());
textBox->setY(boxRect.y());
textBox->setLogicalWidth(boxRect.width());
textBox->setLogicalHeight(boxRect.height());
} else {
ASSERT(child->isInlineFlowBox());
// Skip generated content.
if (!child->renderer()->node())
continue;
SVGInlineFlowBox* flowBox = static_cast<SVGInlineFlowBox*>(child);
layoutChildBoxes(flowBox);
IntRect boxRect = flowBox->calculateBoundaries();
flowBox->setX(boxRect.x());
flowBox->setY(boxRect.y());
flowBox->setLogicalWidth(boxRect.width());
flowBox->setLogicalHeight(boxRect.height());
}
}
}
void SVGRootInlineBox::layoutChildBoxes(InlineFlowBox* start, FloatRect* childRect)
{
for (InlineBox* child = start->firstChild(); child; child = child->nextOnLine()) {
FloatRect boxRect;
if (is<SVGInlineTextBox>(*child)) {
ASSERT(is<RenderSVGInlineText>(child->renderer()));
auto& textBox = downcast<SVGInlineTextBox>(*child);
boxRect = textBox.calculateBoundaries();
textBox.setX(boxRect.x());
textBox.setY(boxRect.y());
textBox.setLogicalWidth(boxRect.width());
textBox.setLogicalHeight(boxRect.height());
} else {
// Skip generated content.
if (!child->renderer().node())
continue;
auto& flowBox = downcast<SVGInlineFlowBox>(*child);
layoutChildBoxes(&flowBox);
boxRect = flowBox.calculateBoundaries();
flowBox.setX(boxRect.x());
flowBox.setY(boxRect.y());
flowBox.setLogicalWidth(boxRect.width());
flowBox.setLogicalHeight(boxRect.height());
}
if (childRect)
childRect->unite(boxRect);
}
}
void SVGRootInlineBox::computePerCharacterLayoutInformation()
{
// Perform SVG text layout phase two (see SVGTextLayoutEngine for details).
SVGTextLayoutEngine characterLayout;
layoutCharactersInTextBoxes(this, characterLayout);
// Perform SVG text layout phase three (see SVGTextChunkBuilder for details).
characterLayout.finishLayout();
// Perform SVG text layout phase four
// Position & resize all SVGInlineText/FlowBoxes in the inline box tree, resize the root box as well as the RenderSVGText parent block.
layoutChildBoxes(this);
layoutRootBox();
}
