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/*
* Copyright (C) 2012 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 "core/html/HTMLShadowElement.h"
#include "core/HTMLNames.h"
#include "core/dom/Document.h"
#include "core/dom/shadow/ShadowRoot.h"
#include "core/inspector/ConsoleMessage.h"
namespace blink {
class Document;
inline HTMLShadowElement::HTMLShadowElement(Document& document)
: InsertionPoint(HTMLNames::shadowTag, document)
{
}
DEFINE_NODE_FACTORY(HTMLShadowElement)
HTMLShadowElement::~HTMLShadowElement()
{
}
ShadowRoot* HTMLShadowElement::olderShadowRoot()
{
ShadowRoot* containingRoot = containingShadowRoot();
if (!containingRoot)
return nullptr;
updateDistribution();
ShadowRoot* older = containingRoot->olderShadowRoot();
if (!older || !older->isOpenOrV0() || older->shadowInsertionPointOfYoungerShadowRoot() != this)
return nullptr;
ASSERT(older->isOpenOrV0());
return older;
}
Node::InsertionNotificationRequest HTMLShadowElement::insertedInto(ContainerNode* insertionPoint)
{
if (insertionPoint->inDocument()) {
// Warn if trying to reproject between user agent and author shadows.
ShadowRoot* root = containingShadowRoot();
if (root && root->olderShadowRoot() && root->type() != root->olderShadowRoot()->type()) {
String message = String::format("<shadow> doesn't work for %s element host.", root->host()->tagName().utf8().data());
document().addConsoleMessage(ConsoleMessage::create(RenderingMessageSource, WarningMessageLevel, message));
}
}
return InsertionPoint::insertedInto(insertionPoint);
}
} // namespace blink
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