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authorKonstantin Tokarev <annulen@yandex.ru>2016-08-25 19:20:41 +0300
committerKonstantin Tokarev <annulen@yandex.ru>2017-02-02 12:30:55 +0000
commit6882a04fb36642862b11efe514251d32070c3d65 (patch)
treeb7959826000b061fd5ccc7512035c7478742f7b0 /Source/WebCore/html/HTMLSlotElement.cpp
parentab6df191029eeeb0b0f16f127d553265659f739e (diff)
downloadqtwebkit-6882a04fb36642862b11efe514251d32070c3d65.tar.gz
Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)
Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>
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+/*
+ * Copyright (C) 2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "HTMLSlotElement.h"
+
+#if ENABLE(SHADOW_DOM) || ENABLE(DETAILS_ELEMENT)
+
+#include "ElementChildIterator.h"
+#include "HTMLNames.h"
+#include "ShadowRoot.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+Ref<HTMLSlotElement> HTMLSlotElement::create(const QualifiedName& tagName, Document& document)
+{
+ return adoptRef(*new HTMLSlotElement(tagName, document));
+}
+
+HTMLSlotElement::HTMLSlotElement(const QualifiedName& tagName, Document& document)
+ : HTMLElement(tagName, document)
+{
+ ASSERT(hasTagName(slotTag));
+}
+
+HTMLSlotElement::InsertionNotificationRequest HTMLSlotElement::insertedInto(ContainerNode& insertionPoint)
+{
+ auto insertionResult = HTMLElement::insertedInto(insertionPoint);
+ ASSERT_UNUSED(insertionResult, insertionResult == InsertionDone);
+
+ // This function could be called when this element's shadow root's host or its ancestor is inserted.
+ // This element is new to the shadow tree (and its tree scope) only if the parent into which this element
+ // or its ancestor is inserted belongs to the same tree scope as this element's.
+ if (insertionPoint.isInShadowTree() && isInShadowTree() && &insertionPoint.treeScope() == &treeScope()) {
+ if (auto shadowRoot = containingShadowRoot())
+ shadowRoot->addSlotElementByName(fastGetAttribute(nameAttr), *this);
+ }
+
+ return InsertionDone;
+}
+
+void HTMLSlotElement::removedFrom(ContainerNode& insertionPoint)
+{
+ // ContainerNode::removeBetween always sets the removed chid's tree scope to Document's but InShadowRoot flag is unset in Node::removedFrom.
+ // So if InShadowRoot flag is set but this element's tree scope is Document's, this element has just been removed from a shadow root.
+ if (insertionPoint.isInShadowTree() && isInShadowTree() && &treeScope() == &document()) {
+ auto* oldShadowRoot = insertionPoint.containingShadowRoot();
+ ASSERT(oldShadowRoot);
+ oldShadowRoot->removeSlotElementByName(fastGetAttribute(nameAttr), *this);
+ }
+
+ HTMLElement::removedFrom(insertionPoint);
+}
+
+void HTMLSlotElement::attributeChanged(const QualifiedName& name, const AtomicString& oldValue, const AtomicString& newValue, AttributeModificationReason reason)
+{
+ HTMLElement::attributeChanged(name, oldValue, newValue, reason);
+
+ if (isInShadowTree() && name == nameAttr) {
+ if (auto* shadowRoot = containingShadowRoot()) {
+ shadowRoot->removeSlotElementByName(oldValue, *this);
+ shadowRoot->addSlotElementByName(newValue, *this);
+ }
+ }
+}
+
+const Vector<Node*>* HTMLSlotElement::assignedNodes() const
+{
+ auto* shadowRoot = containingShadowRoot();
+ if (!shadowRoot)
+ return nullptr;
+
+ return shadowRoot->assignedNodesForSlot(*this);
+}
+
+}
+
+#endif