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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "HTMLMetaElement.h"
#include "Attribute.h"
#include "Document.h"
#include "HTMLNames.h"
#ifdef ANDROID_META_SUPPORT
#include "PlatformBridge.h"
#include "Settings.h"
#endif
#if ENABLE(ANDROID_INSTALLABLE_WEB_APPS)
#include "ChromeClient.h"
#endif
namespace WebCore {
using namespace HTMLNames;
inline HTMLMetaElement::HTMLMetaElement(const QualifiedName& tagName, Document* document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(metaTag));
}
PassRefPtr<HTMLMetaElement> HTMLMetaElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new HTMLMetaElement(tagName, document));
}
void HTMLMetaElement::parseMappedAttribute(Attribute* attr)
{
if (attr->name() == http_equivAttr) {
m_equiv = attr->value();
process();
} else if (attr->name() == contentAttr) {
m_content = attr->value();
process();
} else if (attr->name() == nameAttr) {
// Do nothing.
} else
HTMLElement::parseMappedAttribute(attr);
}
void HTMLMetaElement::insertedIntoDocument()
{
HTMLElement::insertedIntoDocument();
process();
}
void HTMLMetaElement::process()
{
if (!inDocument() || m_content.isNull())
return;
#ifdef ANDROID_META_SUPPORT
// TODO: Evaluate whether to take upstreamed meta support
bool updateViewport = false;
if (equalIgnoringCase(name(), "viewport")) {
document()->processMetadataSettings(m_content);
updateViewport = true;
} else if (equalIgnoringCase(name(), "format-detection"))
document()->processMetadataSettings(m_content);
else if ((equalIgnoringCase(name(), "HandheldFriendly")
&& equalIgnoringCase(m_content, "true") ||
equalIgnoringCase(name(), "MobileOptimized"))
&& document()->settings()
&& document()->settings()->viewportWidth() == -1) {
// fit mobile sites directly in the screen
document()->settings()->setMetadataSettings("width", "device-width");
updateViewport = true;
}
// update the meta data if it is the top document
if (updateViewport && !document()->ownerElement()) {
FrameView* view = document()->view();
if (view)
PlatformBridge::updateViewport(view);
}
#else
if (equalIgnoringCase(name(), "viewport"))
document()->processViewport(m_content);
#endif
#if ENABLE(ANDROID_INSTALLABLE_WEB_APPS)
// If this web site is informing us it is possible for it to be installed, inform the chrome
// client so it can offer this to the user.
if (equalIgnoringCase(name(), "fullscreen-web-app-capable")
&& equalIgnoringCase(m_content, "yes")) {
if (Page* page = document()->page())
page->chrome()->client()->webAppCanBeInstalled();
}
#endif
// Get the document to process the tag, but only if we're actually part of DOM tree (changing a meta tag while
// it's not in the tree shouldn't have any effect on the document)
if (!m_equiv.isNull())
document()->processHttpEquiv(m_equiv, m_content);
}
String HTMLMetaElement::content() const
{
return getAttribute(contentAttr);
}
String HTMLMetaElement::httpEquiv() const
{
return getAttribute(http_equivAttr);
}
String HTMLMetaElement::name() const
{
return getAttribute(nameAttr);
}
}
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