PassRefPtr<TypeBuilder::LayerTree::Layer> InspectorLayerTreeAgent::buildObjectForLayer(ErrorString* errorString, RenderLayer* renderLayer)
{
RenderObject* renderer = &renderLayer->renderer();
RenderLayerBacking* backing = renderLayer->backing();
Node* node = renderer->node();
bool isReflection = renderLayer->isReflection();
bool isGenerated = (isReflection ? renderer->parent() : renderer)->isBeforeOrAfterContent();
bool isAnonymous = renderer->isAnonymous();
if (renderer->isRenderView())
node = &renderer->document();
else if (isReflection && isGenerated)
node = renderer->parent()->generatingElement();
else if (isGenerated)
node = renderer->generatingNode();
else if (isReflection || isAnonymous)
node = renderer->parent()->element();
// Basic set of properties.
RefPtr<TypeBuilder::LayerTree::Layer> layerObject = TypeBuilder::LayerTree::Layer::create()
.setLayerId(bind(renderLayer))
.setNodeId(idForNode(errorString, node))
.setBounds(buildObjectForIntRect(renderer->absoluteBoundingBoxRect()))
.setMemory(backing->backingStoreMemoryEstimate())
.setCompositedBounds(buildObjectForIntRect(enclosingIntRect(backing->compositedBounds())))
.setPaintCount(backing->graphicsLayer()->repaintCount());
if (node && node->shadowHost())
layerObject->setIsInShadowTree(true);
if (isReflection)
layerObject->setIsReflection(true);
if (isGenerated) {
if (isReflection)
renderer = renderer->parent();
layerObject->setIsGeneratedContent(true);
layerObject->setPseudoElementId(bindPseudoElement(toPseudoElement(renderer->node())));
if (renderer->isBeforeContent())
layerObject->setPseudoElement("before");
else if (renderer->isAfterContent())
layerObject->setPseudoElement("after");
}
// FIXME: RenderView is now really anonymous but don't tell about it to the frontend before making sure it can handle it.
if (isAnonymous && !renderer->isRenderView()) {
layerObject->setIsAnonymous(true);
if (RenderStyle* style = renderer->style()) {
if (style->styleType() == FIRST_LETTER)
layerObject->setPseudoElement("first-letter");
else if (style->styleType() == FIRST_LINE)
layerObject->setPseudoElement("first-line");
}
}
return layerObject;
}
void RenderCounter::rendererStyleChanged(RenderObject& renderer, const RenderStyle* oldStyle, const RenderStyle* newStyle)
{
Node* node = renderer.generatingNode();
if (!node || node->needsAttach())
return; // cannot have generated content or if it can have, it will be handled during attaching
const CounterDirectiveMap* newCounterDirectives;
const CounterDirectiveMap* oldCounterDirectives;
if (oldStyle && (oldCounterDirectives = oldStyle->counterDirectives())) {
if (newStyle && (newCounterDirectives = newStyle->counterDirectives())) {
CounterDirectiveMap::const_iterator newMapEnd = newCounterDirectives->end();
CounterDirectiveMap::const_iterator oldMapEnd = oldCounterDirectives->end();
for (CounterDirectiveMap::const_iterator it = newCounterDirectives->begin(); it != newMapEnd; ++it) {
CounterDirectiveMap::const_iterator oldMapIt = oldCounterDirectives->find(it->key);
if (oldMapIt != oldMapEnd) {
if (oldMapIt->value == it->value)
continue;
RenderCounter::destroyCounterNode(renderer, it->key);
}
// We must create this node here, because the changed node may be a node with no display such as
// as those created by the increment or reset directives and the re-layout that will happen will
// not catch the change if the node had no children.
makeCounterNode(renderer, it->key, false);
}
// Destroying old counters that do not exist in the new counterDirective map.
for (CounterDirectiveMap::const_iterator it = oldCounterDirectives->begin(); it !=oldMapEnd; ++it) {
if (!newCounterDirectives->contains(it->key))
RenderCounter::destroyCounterNode(renderer, it->key);
}
} else {
if (renderer.hasCounterNodeMap())
RenderCounter::destroyCounterNodes(renderer);
}
} else if (newStyle && (newCounterDirectives = newStyle->counterDirectives())) {
CounterDirectiveMap::const_iterator newMapEnd = newCounterDirectives->end();
for (CounterDirectiveMap::const_iterator it = newCounterDirectives->begin(); it != newMapEnd; ++it) {
// We must create this node here, because the added node may be a node with no display such as
// as those created by the increment or reset directives and the re-layout that will happen will
// not catch the change if the node had no children.
makeCounterNode(renderer, it->key, false);
}
}
}
static bool planCounter(RenderObject& object, const AtomicString& identifier, bool& isReset, int& value)
{
// Real text nodes don't have their own style so they can't have counters.
// We can't even look at their styles or we'll see extra resets and increments!
if (object.isText() && !object.isBR())
return false;
Node* generatingNode = object.generatingNode();
// We must have a generating node or else we cannot have a counter.
if (!generatingNode)
return false;
RenderStyle* style = object.style();
ASSERT(style);
switch (style->styleType()) {
case NOPSEUDO:
// Sometimes nodes have more then one renderer. Only the first one gets the counter
// LayoutTests/http/tests/css/counter-crash.html
if (generatingNode->renderer() != &object)
return false;
break;
case BEFORE:
case AFTER:
break;
default:
return false; // Counters are forbidden from all other pseudo elements.
}
const CounterDirectives directives = style->getCounterDirectives(identifier);
if (directives.isDefined()) {
value = directives.combinedValue();
isReset = directives.isReset();
return true;
}
if (identifier == "list-item") {
if (object.isListItem()) {
if (toRenderListItem(object).hasExplicitValue()) {
value = toRenderListItem(object).explicitValue();
isReset = true;
return true;
}
value = 1;
isReset = false;
return true;
}
if (Node* e = object.node()) {
if (isHTMLOListElement(*e)) {
value = toHTMLOListElement(e)->start();
isReset = true;
return true;
}
if (isHTMLUListElement(*e) || isHTMLMenuElement(*e) || isHTMLDirectoryElement(*e)) {
value = 0;
isReset = true;
return true;
}
}
}
return false;
}