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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 "third_party/blink/renderer/core/html/link_rel_attribute.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
namespace blink {
LinkRelAttribute::LinkRelAttribute()
: icon_type_(kInvalidIcon),
is_style_sheet_(false),
is_alternate_(false),
is_dns_prefetch_(false),
is_preconnect_(false),
is_link_prefetch_(false),
is_link_preload_(false),
is_link_prerender_(false),
is_link_next_(false),
is_import_(false),
is_manifest_(false),
is_module_preload_(false),
is_service_worker_(false),
is_canonical_(false) {}
LinkRelAttribute::LinkRelAttribute(const String& rel) : LinkRelAttribute() {
if (rel.IsEmpty())
return;
String rel_copy = rel;
rel_copy.Replace('\n', ' ');
Vector<String> list;
rel_copy.Split(' ', list);
for (const String& link_type : list) {
if (DeprecatedEqualIgnoringCase(link_type, "stylesheet")) {
if (!is_import_)
is_style_sheet_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "import")) {
if (!is_style_sheet_)
is_import_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "alternate")) {
is_alternate_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "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
icon_type_ = kFavicon;
} else if (DeprecatedEqualIgnoringCase(link_type, "prefetch")) {
is_link_prefetch_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "dns-prefetch")) {
is_dns_prefetch_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "preconnect")) {
is_preconnect_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "preload")) {
is_link_preload_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "prerender")) {
is_link_prerender_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "next")) {
is_link_next_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "apple-touch-icon")) {
icon_type_ = kTouchIcon;
} else if (DeprecatedEqualIgnoringCase(link_type,
"apple-touch-icon-precomposed")) {
icon_type_ = kTouchPrecomposedIcon;
} else if (DeprecatedEqualIgnoringCase(link_type, "manifest")) {
is_manifest_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "modulepreload")) {
is_module_preload_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "serviceworker")) {
is_service_worker_ = true;
} else if (DeprecatedEqualIgnoringCase(link_type, "canonical")) {
is_canonical_ = true;
}
// Adding or removing a value here requires you to update
// RelList::supportedTokens()
}
}
} // namespace blink