HTMLImportChild* HTMLImportsController::load(HTMLImport* parent, HTMLImportChildClient* client, FetchRequest request)
{
ASSERT(!request.url().isEmpty() && request.url().isValid());
ASSERT(parent == root() || toHTMLImportChild(parent)->loader()->isFirstImport(toHTMLImportChild(parent)));
if (HTMLImportChild* childToShareWith = root()->find(request.url())) {
HTMLImportLoader* loader = childToShareWith->loader();
ASSERT(loader);
HTMLImportChild* child = createChild(request.url(), loader, parent, client);
child->didShareLoader();
return child;
}
bool sameOriginRequest = master()->securityOrigin()->canRequest(request.url());
request.setCrossOriginAccessControl(
master()->securityOrigin(), sameOriginRequest ? AllowStoredCredentials : DoNotAllowStoredCredentials,
ClientDidNotRequestCredentials);
ResourcePtr<RawResource> resource = parent->document()->fetcher()->fetchImport(request);
if (!resource)
return 0;
HTMLImportLoader* loader = createLoader();
HTMLImportChild* child = createChild(request.url(), loader, parent, client);
// We set resource after the import tree is built since
// Resource::addClient() immediately calls back to feed the bytes when the resource is cached.
loader->startLoading(resource);
child->didStartLoading();
return child;
}
inline bool HTMLImportStateResolver::isBlockingFollowers(HTMLImport* import) {
if (!import->isSync())
return false;
HTMLImportChild* child = toHTMLImportChild(import);
if (!child->loader()->isFirstImport(child))
return false;
return !import->state().isReady();
}
HTMLImportChild* HTMLImportTreeRoot::find(const KURL& url) const
{
for (size_t i = 0; i < m_imports.size(); ++i) {
HTMLImportChild* candidate = m_imports[i].get();
if (equalIgnoringFragmentIdentifier(candidate->url(), url))
return candidate;
}
return 0;
}
// Ensuring following invariants against the import tree:
// - HTMLImportChild::firstImport() is the "first import" of the DFS order of the import tree.
// - The "first import" manages all the children that is loaded by the document.
void HTMLImportChild::normalize()
{
if (!loader()->isFirstImport(this) && this->precedes(loader()->firstImport())) {
HTMLImportChild* oldFirst = loader()->firstImport();
loader()->moveToFirst(this);
takeChildrenFrom(oldFirst);
}
for (HTMLImportChild* child = toHTMLImportChild(firstChild()); child; child = toHTMLImportChild(child->next()))
child->normalize();
}
// Ensuring following invariants against the import tree:
// - HTMLImportChild::firstImport() is the "first import" of the DFS order of the import tree.
// - The "first import" manages all the children that is loaded by the document.
void HTMLImportChild::normalize()
{
if (!loader()->isFirstImport(this) && this->precedes(loader()->firstImport())) {
HTMLImportChild* oldFirst = loader()->firstImport();
loader()->moveToFirst(this);
takeChildrenFrom(oldFirst);
}
for (HTMLImportChild* child = toHTMLImportChild(firstChild()); child; child = toHTMLImportChild(child->next())) {
if (child->formsCycle())
child->invalidateCustomElementMicrotaskStep();
child->normalize();
}
}
HTMLImportChild* HTMLImportsController::load(HTMLImport* parent, HTMLImportChildClient* client, FetchRequest request)
{
ASSERT(!request.url().isEmpty() && request.url().isValid());
ASSERT(parent == root() || toHTMLImportChild(parent)->loader()->isFirstImport(toHTMLImportChild(parent)));
if (HTMLImportChild* childToShareWith = root()->find(request.url())) {
HTMLImportLoader* loader = childToShareWith->loader();
ASSERT(loader);
HTMLImportChild* child = createChild(request.url(), loader, parent, client);
child->didShareLoader();
return child;
}
HTMLImportLoader* loader = createLoader();
HTMLImportChild* child = createChild(request.url(), loader, parent, client);
// We set resource after the import tree is built since
// Resource::addClient() immediately calls back to feed the bytes when the resource is cached.
loader->startLoading(request.url());
child->didStartLoading();
return child;
}
