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/*
* Copyright (C) 2011 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/LinkRelAttribute.h"
namespace blink {
LinkRelAttribute::LinkRelAttribute(const String& rel)
: m_iconType(InvalidIcon),
m_isStyleSheet(false),
m_isAlternate(false),
m_isDNSPrefetch(false),
m_isPreconnect(false),
m_isLinkPrefetch(false),
m_isLinkPreload(false),
m_isLinkPrerender(false),
m_isLinkNext(false),
m_isImport(false),
m_isManifest(false),
m_isServiceWorker(false) {
if (rel.isEmpty())
return;
String relCopy = rel;
relCopy.replace('\n', ' ');
Vector<String> list;
relCopy.split(' ', list);
for (const String& linkType : list) {
if (equalIgnoringCase(linkType, "stylesheet")) {
if (!m_isImport)
m_isStyleSheet = true;
} else if (equalIgnoringCase(linkType, "import")) {
if (!m_isStyleSheet)
m_isImport = true;
} else if (equalIgnoringCase(linkType, "alternate")) {
m_isAlternate = true;
} else if (equalIgnoringCase(linkType, "icon")) {
// This also allows "shortcut icon" since we just ignore the non-standard
// "shortcut" token.
// FIXME: This doesn't really follow the spec that requires "shortcut
// icon" to be the entire string
// http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon
m_iconType = Favicon;
} else if (equalIgnoringCase(linkType, "prefetch")) {
m_isLinkPrefetch = true;
} else if (equalIgnoringCase(linkType, "dns-prefetch")) {
m_isDNSPrefetch = true;
} else if (equalIgnoringCase(linkType, "preconnect")) {
m_isPreconnect = true;
} else if (equalIgnoringCase(linkType, "preload")) {
m_isLinkPreload = true;
} else if (equalIgnoringCase(linkType, "prerender")) {
m_isLinkPrerender = true;
} else if (equalIgnoringCase(linkType, "next")) {
m_isLinkNext = true;
} else if (equalIgnoringCase(linkType, "apple-touch-icon")) {
m_iconType = TouchIcon;
} else if (equalIgnoringCase(linkType, "apple-touch-icon-precomposed")) {
m_iconType = TouchPrecomposedIcon;
} else if (equalIgnoringCase(linkType, "manifest")) {
m_isManifest = true;
} else if (equalIgnoringCase(linkType, "serviceworker")) {
m_isServiceWorker = true;
}
// Adding or removing a value here requires you to update
// RelList::supportedTokens()
}
}
} // namespace blink
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