Remove HTMLLinkElement

sky/engine/core/html/HTMLLinkElement.cpp

-/*
- * 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, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
- * Copyright (C) 2009 Rob Buis (rwlbuis@gmail.com)
- * Copyright (C) 2011 Google 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 "core/html/HTMLLinkElement.h"
-
-#include "core/HTMLNames.h"
-#include "core/css/MediaList.h"
-#include "core/css/MediaQueryEvaluator.h"
-#include "core/css/StyleSheetContents.h"
-#include "core/css/resolver/StyleResolver.h"
-#include "core/dom/Attribute.h"
-#include "core/dom/Document.h"
-#include "core/dom/StyleEngine.h"
-#include "core/events/Event.h"
-#include "core/events/EventSender.h"
-#include "core/fetch/FetchRequest.h"
-#include "core/fetch/ResourceFetcher.h"
-#include "core/frame/FrameView.h"
-#include "core/frame/LocalFrame.h"
-#include "core/html/imports/LinkImport.h"
-#include "core/html/parser/HTMLParserIdioms.h"
-#include "core/loader/FrameLoaderClient.h"
-#include "core/rendering/style/RenderStyle.h"
-#include "core/rendering/style/StyleInheritedData.h"
-#include "platform/RuntimeEnabledFeatures.h"
-#include "wtf/StdLibExtras.h"
-
-namespace blink {
-
-template <typename CharacterType>
-static void parseSizes(const CharacterType* value, unsigned length, Vector<IntSize>& iconSizes)
-{
-    enum State {
-        ParseStart,
-        ParseWidth,
-        ParseHeight
-    };
-    int width = 0;
-    unsigned start = 0;
-    unsigned i = 0;
-    State state = ParseStart;
-    bool invalid = false;
-    for (; i < length; ++i) {
-        if (state == ParseWidth) {
-            if (value[i] == 'x' || value[i] == 'X') {
-                if (i == start) {
-                    invalid = true;
-                    break;
-                }
-                width = charactersToInt(value + start, i - start);
-                start = i + 1;
-                state = ParseHeight;
-            } else if (value[i] < '0' || value[i] > '9') {
-                invalid = true;
-                break;
-            }
-        } else if (state == ParseHeight) {
-            if (value[i] == ' ') {
-                if (i == start) {
-                    invalid = true;
-                    break;
-                }
-                int height = charactersToInt(value + start, i - start);
-                iconSizes.append(IntSize(width, height));
-                start = i + 1;
-                state = ParseStart;
-            } else if (value[i] < '0' || value[i] > '9') {
-                invalid = true;
-                break;
-            }
-        } else if (state == ParseStart) {
-            if (value[i] >= '0' && value[i] <= '9') {
-                start = i;
-                state = ParseWidth;
-            } else if (value[i] != ' ') {
-                invalid = true;
-                break;
-            }
-        }
-    }
-    if (invalid || state == ParseWidth || (state == ParseHeight && start == i)) {
-        iconSizes.clear();
-        return;
-    }
-    if (state == ParseHeight && i > start) {
-        int height = charactersToInt(value + start, i - start);
-        iconSizes.append(IntSize(width, height));
-    }
-}
-
-static LinkEventSender& linkLoadEventSender()
-{
-    DEFINE_STATIC_LOCAL(LinkEventSender, sharedLoadEventSender, (EventTypeNames::load));
-    return sharedLoadEventSender;
-}
-
-void HTMLLinkElement::parseSizesAttribute(const AtomicString& value, Vector<IntSize>& iconSizes)
-{
-    ASSERT(iconSizes.isEmpty());
-    if (value.isEmpty())
-        return;
-    if (value.is8Bit())
-        parseSizes(value.characters8(), value.length(), iconSizes);
-    else
-        parseSizes(value.characters16(), value.length(), iconSizes);
-}
-
-inline HTMLLinkElement::HTMLLinkElement(Document& document, bool createdByParser)
-    : HTMLElement(HTMLNames::linkTag, document)
-    , m_sizes(DOMSettableTokenList::create())
-    , m_createdByParser(createdByParser)
-    , m_isInShadowTree(false)
-{
-    ScriptWrappable::init(this);
-}
-
-PassRefPtr<HTMLLinkElement> HTMLLinkElement::create(Document& document, bool createdByParser)
-{
-    return adoptRef(new HTMLLinkElement(document, createdByParser));
-}
-
-HTMLLinkElement::~HTMLLinkElement()
-{
-#if !ENABLE(OILPAN)
-    m_link.clear();
-
-    if (inDocument())
-        document().styleEngine()->removeStyleSheetCandidateNode(this);
-#endif
-
-    linkLoadEventSender().cancelEvent(this);
-}
-
-void HTMLLinkElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
-{
-    if (name == HTMLNames::relAttr) {
-        m_relAttribute = LinkRelAttribute(value);
-        process();
-    } else if (name == HTMLNames::hrefAttr) {
-        process();
-    } else if (name == HTMLNames::typeAttr) {
-        m_type = value;
-        process();
-    } else if (name == HTMLNames::sizesAttr) {
-        m_sizes->setValue(value);
-        parseSizesAttribute(value, m_iconSizes);
-        process();
-    } else if (name == HTMLNames::mediaAttr) {
-        m_media = value.string().lower();
-        process();
-    } else {
-        HTMLElement::parseAttribute(name, value);
-    }
-}
-
-LinkResource* HTMLLinkElement::linkResourceToProcess()
-{
-    bool visible = inDocument() && !m_isInShadowTree;
-    if (!visible)
-        return 0;
-
-    if (!m_link && m_relAttribute.isImport())
-        m_link = LinkImport::create(this);
-
-    return m_link.get();
-}
-
-LinkImport* HTMLLinkElement::linkImport() const
-{
-    if (!m_link || m_link->type() != LinkResource::Import)
-        return 0;
-    return static_cast<LinkImport*>(m_link.get());
-}
-
-Document* HTMLLinkElement::import() const
-{
-    if (LinkImport* link = linkImport())
-        return link->importedDocument();
-    return 0;
-}
-
-void HTMLLinkElement::process()
-{
-    if (LinkResource* link = linkResourceToProcess())
-        link->process();
-}
-
-Node::InsertionNotificationRequest HTMLLinkElement::insertedInto(ContainerNode* insertionPoint)
-{
-    HTMLElement::insertedInto(insertionPoint);
-    if (!insertionPoint->inDocument())
-        return InsertionDone;
-
-    m_isInShadowTree = isInShadowTree();
-    if (m_isInShadowTree)
-        return InsertionDone;
-
-    document().styleEngine()->addStyleSheetCandidateNode(this, m_createdByParser);
-
-    process();
-
-    if (m_link)
-        m_link->ownerInserted();
-
-    return InsertionDone;
-}
-
-void HTMLLinkElement::removedFrom(ContainerNode* insertionPoint)
-{
-    HTMLElement::removedFrom(insertionPoint);
-    if (!insertionPoint->inDocument())
-        return;
-
-    if (m_isInShadowTree)
-        return;
-    document().styleEngine()->removeStyleSheetCandidateNode(this);
-
-    RefPtr<StyleSheet> removedSheet = sheet();
-
-    if (m_link)
-        m_link->ownerRemoved();
-
-    document().removedStyleSheet(removedSheet.get());
-}
-
-void HTMLLinkElement::finishParsingChildren()
-{
-    m_createdByParser = false;
-    HTMLElement::finishParsingChildren();
-}
-
-void HTMLLinkElement::dispatchPendingLoadEvents()
-{
-    linkLoadEventSender().dispatchPendingEvents();
-}
-
-void HTMLLinkElement::dispatchPendingEvent(LinkEventSender* eventSender)
-{
-    ASSERT_UNUSED(eventSender, eventSender == &linkLoadEventSender());
-    ASSERT(m_link);
-    // FIXME(sky): Remove
-}
-
-void HTMLLinkElement::scheduleEvent()
-{
-    linkLoadEventSender().dispatchEventSoon(this);
-}
-
-bool HTMLLinkElement::isURLAttribute(const Attribute& attribute) const
-{
-    return attribute.name().localName() == HTMLNames::hrefAttr || HTMLElement::isURLAttribute(attribute);
-}
-
-bool HTMLLinkElement::hasLegalLinkAttribute(const QualifiedName& name) const
-{
-    return name == HTMLNames::hrefAttr || HTMLElement::hasLegalLinkAttribute(name);
-}
-
-const QualifiedName& HTMLLinkElement::subResourceAttributeName() const
-{
-    // If the link element is not css, ignore it.
-    if (equalIgnoringCase(getAttribute(HTMLNames::typeAttr), "text/css")) {
-        // FIXME: Add support for extracting links of sub-resources which
-        // are inside style-sheet such as @import, @font-face, url(), etc.
-        return HTMLNames::hrefAttr;
-    }
-    return HTMLElement::subResourceAttributeName();
-}
-
-KURL HTMLLinkElement::href() const
-{
-    return document().completeURL(getAttribute(HTMLNames::hrefAttr));
-}
-
-const AtomicString& HTMLLinkElement::rel() const
-{
-    return getAttribute(HTMLNames::relAttr);
-}
-
-const AtomicString& HTMLLinkElement::type() const
-{
-    return getAttribute(HTMLNames::typeAttr);
-}
-
-bool HTMLLinkElement::async() const
-{
-    return hasAttribute(HTMLNames::asyncAttr);
-}
-
-String HTMLLinkElement::as() const
-{
-    return stripLeadingAndTrailingHTMLSpaces(getAttribute(HTMLNames::asAttr));
-}
-
-const Vector<IntSize>& HTMLLinkElement::iconSizes() const
-{
-    return m_iconSizes;
-}
-
-DOMSettableTokenList* HTMLLinkElement::sizes() const
-{
-    return m_sizes.get();
-}
-
-void HTMLLinkElement::trace(Visitor* visitor)
-{
-    visitor->trace(m_link);
-    visitor->trace(m_sizes);
-    HTMLElement::trace(visitor);
-}
-
-} // namespace blink