mirror of
https://github.com/mozilla/gecko-dev.git
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139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et tw=78: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsHtml5DocumentBuilder.h"
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#include "nsIStyleSheetLinkingElement.h"
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#include "nsStyleLinkElement.h"
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#include "nsScriptLoader.h"
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#include "nsIHTMLDocument.h"
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NS_IMPL_CYCLE_COLLECTION_INHERITED(nsHtml5DocumentBuilder, nsContentSink,
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mOwnedElements)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsHtml5DocumentBuilder)
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NS_INTERFACE_MAP_END_INHERITING(nsContentSink)
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NS_IMPL_ADDREF_INHERITED(nsHtml5DocumentBuilder, nsContentSink)
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NS_IMPL_RELEASE_INHERITED(nsHtml5DocumentBuilder, nsContentSink)
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nsHtml5DocumentBuilder::nsHtml5DocumentBuilder(bool aRunsToCompletion)
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{
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mRunsToCompletion = aRunsToCompletion;
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}
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nsresult
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nsHtml5DocumentBuilder::Init(nsIDocument* aDoc,
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nsIURI* aURI,
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nsISupports* aContainer,
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nsIChannel* aChannel)
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{
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return nsContentSink::Init(aDoc, aURI, aContainer, aChannel);
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}
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nsHtml5DocumentBuilder::~nsHtml5DocumentBuilder()
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{
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}
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nsresult
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nsHtml5DocumentBuilder::MarkAsBroken(nsresult aReason)
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{
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mBroken = aReason;
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return aReason;
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}
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void
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nsHtml5DocumentBuilder::SetDocumentCharsetAndSource(nsACString& aCharset, int32_t aCharsetSource)
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{
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if (mDocument) {
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mDocument->SetDocumentCharacterSetSource(aCharsetSource);
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mDocument->SetDocumentCharacterSet(aCharset);
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}
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}
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void
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nsHtml5DocumentBuilder::UpdateStyleSheet(nsIContent* aElement)
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{
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// Break out of the doc update created by Flush() to zap a runnable
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// waiting to call UpdateStyleSheet without the right observer
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EndDocUpdate();
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if (MOZ_UNLIKELY(!mParser)) {
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// EndDocUpdate ran stuff that called nsIParser::Terminate()
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return;
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}
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nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(aElement));
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NS_ASSERTION(ssle, "Node didn't QI to style.");
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ssle->SetEnableUpdates(true);
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bool willNotify;
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bool isAlternate;
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nsresult rv = ssle->UpdateStyleSheet(mRunsToCompletion ? nullptr : this,
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&willNotify,
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&isAlternate);
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if (NS_SUCCEEDED(rv) && willNotify && !isAlternate && !mRunsToCompletion) {
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++mPendingSheetCount;
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mScriptLoader->AddExecuteBlocker();
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}
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if (aElement->IsHTMLElement(nsGkAtoms::link)) {
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// look for <link rel="next" href="url">
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nsAutoString relVal;
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aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::rel, relVal);
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if (!relVal.IsEmpty()) {
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uint32_t linkTypes =
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nsStyleLinkElement::ParseLinkTypes(relVal, aElement->NodePrincipal());
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bool hasPrefetch = linkTypes & nsStyleLinkElement::ePREFETCH;
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if (hasPrefetch || (linkTypes & nsStyleLinkElement::eNEXT)) {
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nsAutoString hrefVal;
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aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::href, hrefVal);
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if (!hrefVal.IsEmpty()) {
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PrefetchHref(hrefVal, aElement, hasPrefetch);
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}
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}
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}
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}
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// Re-open update
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BeginDocUpdate();
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}
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void
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nsHtml5DocumentBuilder::SetDocumentMode(nsHtml5DocumentMode m)
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{
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nsCompatibility mode = eCompatibility_NavQuirks;
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switch (m) {
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case STANDARDS_MODE:
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mode = eCompatibility_FullStandards;
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break;
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case ALMOST_STANDARDS_MODE:
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mode = eCompatibility_AlmostStandards;
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break;
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case QUIRKS_MODE:
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mode = eCompatibility_NavQuirks;
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break;
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}
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nsCOMPtr<nsIHTMLDocument> htmlDocument = do_QueryInterface(mDocument);
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NS_ASSERTION(htmlDocument, "Document didn't QI into HTML document.");
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htmlDocument->SetCompatibilityMode(mode);
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}
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// nsContentSink overrides
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void
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nsHtml5DocumentBuilder::UpdateChildCounts()
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{
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// No-op
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}
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nsresult
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nsHtml5DocumentBuilder::FlushTags()
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{
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return NS_OK;
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}
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