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parser/html/nsHtml5DocumentBuilder.cpp@6474c204b198 (annotated)

parser/html/nsHtml5DocumentBuilder.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* vim: set ts=2 sw=2 et tw=78: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "nsHtml5DocumentBuilder.h"
michael@0	8
michael@0	9	#include "nsIStyleSheetLinkingElement.h"
michael@0	10	#include "nsStyleLinkElement.h"
michael@0	11	#include "nsScriptLoader.h"
michael@0	12	#include "nsIHTMLDocument.h"
michael@0	13
michael@0	14	NS_IMPL_CYCLE_COLLECTION_INHERITED(nsHtml5DocumentBuilder, nsContentSink,
michael@0	15	mOwnedElements)
michael@0	16
michael@0	17	NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsHtml5DocumentBuilder)
michael@0	18	NS_INTERFACE_MAP_END_INHERITING(nsContentSink)
michael@0	19
michael@0	20	NS_IMPL_ADDREF_INHERITED(nsHtml5DocumentBuilder, nsContentSink)
michael@0	21	NS_IMPL_RELEASE_INHERITED(nsHtml5DocumentBuilder, nsContentSink)
michael@0	22
michael@0	23	nsHtml5DocumentBuilder::nsHtml5DocumentBuilder(bool aRunsToCompletion)
michael@0	24	{
michael@0	25	mRunsToCompletion = aRunsToCompletion;
michael@0	26	}
michael@0	27
michael@0	28	nsresult
michael@0	29	nsHtml5DocumentBuilder::Init(nsIDocument* aDoc,
michael@0	30	nsIURI* aURI,
michael@0	31	nsISupports* aContainer,
michael@0	32	nsIChannel* aChannel)
michael@0	33	{
michael@0	34	return nsContentSink::Init(aDoc, aURI, aContainer, aChannel);
michael@0	35	}
michael@0	36
michael@0	37	nsHtml5DocumentBuilder::~nsHtml5DocumentBuilder()
michael@0	38	{
michael@0	39	}
michael@0	40
michael@0	41	nsresult
michael@0	42	nsHtml5DocumentBuilder::MarkAsBroken(nsresult aReason)
michael@0	43	{
michael@0	44	mBroken = aReason;
michael@0	45	return aReason;
michael@0	46	}
michael@0	47
michael@0	48	void
michael@0	49	nsHtml5DocumentBuilder::SetDocumentCharsetAndSource(nsACString& aCharset, int32_t aCharsetSource)
michael@0	50	{
michael@0	51	if (mDocument) {
michael@0	52	mDocument->SetDocumentCharacterSetSource(aCharsetSource);
michael@0	53	mDocument->SetDocumentCharacterSet(aCharset);
michael@0	54	}
michael@0	55	}
michael@0	56
michael@0	57	void
michael@0	58	nsHtml5DocumentBuilder::UpdateStyleSheet(nsIContent* aElement)
michael@0	59	{
michael@0	60	// Break out of the doc update created by Flush() to zap a runnable
michael@0	61	// waiting to call UpdateStyleSheet without the right observer
michael@0	62	EndDocUpdate();
michael@0	63
michael@0	64	if (MOZ_UNLIKELY(!mParser)) {
michael@0	65	// EndDocUpdate ran stuff that called nsIParser::Terminate()
michael@0	66	return;
michael@0	67	}
michael@0	68
michael@0	69	nsCOMPtr<nsIStyleSheetLinkingElement> ssle(do_QueryInterface(aElement));
michael@0	70	NS_ASSERTION(ssle, "Node didn't QI to style.");
michael@0	71
michael@0	72	ssle->SetEnableUpdates(true);
michael@0	73
michael@0	74	bool willNotify;
michael@0	75	bool isAlternate;
michael@0	76	nsresult rv = ssle->UpdateStyleSheet(mRunsToCompletion ? nullptr : this,
michael@0	77	&willNotify,
michael@0	78	&isAlternate);
michael@0	79	if (NS_SUCCEEDED(rv) && willNotify && !isAlternate && !mRunsToCompletion) {
michael@0	80	++mPendingSheetCount;
michael@0	81	mScriptLoader->AddExecuteBlocker();
michael@0	82	}
michael@0	83
michael@0	84	if (aElement->IsHTML(nsGkAtoms::link)) {
michael@0	85	// look for <link rel="next" href="url">
michael@0	86	nsAutoString relVal;
michael@0	87	aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::rel, relVal);
michael@0	88	if (!relVal.IsEmpty()) {
michael@0	89	uint32_t linkTypes = nsStyleLinkElement::ParseLinkTypes(relVal);
michael@0	90	bool hasPrefetch = linkTypes & nsStyleLinkElement::ePREFETCH;
michael@0	91	if (hasPrefetch || (linkTypes & nsStyleLinkElement::eNEXT)) {
michael@0	92	nsAutoString hrefVal;
michael@0	93	aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::href, hrefVal);
michael@0	94	if (!hrefVal.IsEmpty()) {
michael@0	95	PrefetchHref(hrefVal, aElement, hasPrefetch);
michael@0	96	}
michael@0	97	}
michael@0	98	if (linkTypes & nsStyleLinkElement::eDNS_PREFETCH) {
michael@0	99	nsAutoString hrefVal;
michael@0	100	aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::href, hrefVal);
michael@0	101	if (!hrefVal.IsEmpty()) {
michael@0	102	PrefetchDNS(hrefVal);
michael@0	103	}
michael@0	104	}
michael@0	105	}
michael@0	106	}
michael@0	107
michael@0	108	// Re-open update
michael@0	109	BeginDocUpdate();
michael@0	110	}
michael@0	111
michael@0	112	void
michael@0	113	nsHtml5DocumentBuilder::SetDocumentMode(nsHtml5DocumentMode m)
michael@0	114	{
michael@0	115	nsCompatibility mode = eCompatibility_NavQuirks;
michael@0	116	switch (m) {
michael@0	117	case STANDARDS_MODE:
michael@0	118	mode = eCompatibility_FullStandards;
michael@0	119	break;
michael@0	120	case ALMOST_STANDARDS_MODE:
michael@0	121	mode = eCompatibility_AlmostStandards;
michael@0	122	break;
michael@0	123	case QUIRKS_MODE:
michael@0	124	mode = eCompatibility_NavQuirks;
michael@0	125	break;
michael@0	126	}
michael@0	127	nsCOMPtr<nsIHTMLDocument> htmlDocument = do_QueryInterface(mDocument);
michael@0	128	NS_ASSERTION(htmlDocument, "Document didn't QI into HTML document.");
michael@0	129	htmlDocument->SetCompatibilityMode(mode);
michael@0	130	}
michael@0	131
michael@0	132	// nsContentSink overrides
michael@0	133
michael@0	134	void
michael@0	135	nsHtml5DocumentBuilder::UpdateChildCounts()
michael@0	136	{
michael@0	137	// No-op
michael@0	138	}
michael@0	139
michael@0	140	nsresult
michael@0	141	nsHtml5DocumentBuilder::FlushTags()
michael@0	142	{
michael@0	143	return NS_OK;
michael@0	144	}