gecko-dev/parser/html/nsHtml5DocumentBuilder.cpp

121 lines
3.2 KiB
C++

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