Basic implementation of <import>

sky/engine/core/html/HTMLImportElement.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/html/HTMLImportElement.h"
+
+#include "base/debug/stack_trace.h"

[ojan, 2014/11/03 18:08:29]

leftover?

[abarth-chromium, 2014/11/03 20:37:02]

Fixed!

+#include "core/dom/Document.h"
+#include "core/html/imports/HTMLImportsController.h"
+#include "core/html/imports/HTMLImportChild.h"
+
+namespace blink {
+
+HTMLImportElement::HTMLImportElement(Document& document)
+    : HTMLElement(HTMLNames::importTag, document)
+    , m_child(nullptr)
+{
+    ScriptWrappable::init(this);
+}
+
+PassRefPtr<HTMLImportElement> HTMLImportElement::create(Document& document)
+{
+    return adoptRef(new HTMLImportElement(document));
+}
+
+Node::InsertionNotificationRequest HTMLImportElement::insertedInto(ContainerNode* insertionPoint)
+{
+    HTMLElement::insertedInto(insertionPoint);
+    if (!insertionPoint->inDocument() || isInShadowTree())
+        return InsertionDone;
+
+    if (shouldLoad())
+        load();
+
+    return InsertionDone;
+}
+
+bool HTMLImportElement::shouldLoad() const
+{
+    return document().frame() || document().importsController();
+}
+
+void HTMLImportElement::load()
+{
+    if (m_child || !hasAttribute(HTMLNames::srcAttr))
+        return;
+    KURL url = document().completeURL(getAttribute(HTMLNames::srcAttr));
+    m_child = document().ensureImportsController().load(document().import(), this, FetchRequest(ResourceRequest(url)));
+
+    if (m_child)
+        m_child->ownerInserted();
+}
+
+void HTMLImportElement::didFinish()
+{
+}
+
+void HTMLImportElement::importChildWasDestroyed(HTMLImportChild* child)
+{
+    ASSERT(m_child == child);
+    m_child = nullptr;
+}
+
+bool HTMLImportElement::isSync() const
+{
+    return true;
+}
+
+Element* HTMLImportElement::link()
+{
+    return this;
+}
+
+}