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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "ScriptElement.h"
#include "ScriptLoader.h"
#include "mozilla/BasicEvents.h"
#include "mozilla/EventDispatcher.h"
#include "mozilla/dom/Element.h"
#include "nsContentUtils.h"
#include "nsPresContext.h"
#include "nsIParser.h"
#include "nsGkAtoms.h"
#include "nsContentSink.h"
using namespace mozilla;
using namespace mozilla::dom;
NS_IMETHODIMP
ScriptElement::ScriptAvailable(nsresult aResult,
nsIScriptElement *aElement,
bool aIsInlineClassicScript,
nsIURI *aURI,
int32_t aLineNo)
{
if (!aIsInlineClassicScript && NS_FAILED(aResult)) {
nsCOMPtr<nsIParser> parser = do_QueryReferent(mCreatorParser);
if (parser) {
parser->PushDefinedInsertionPoint();
}
nsresult rv = FireErrorEvent();
if (parser) {
parser->PopDefinedInsertionPoint();
}
return rv;
}
return NS_OK;
}
/* virtual */ nsresult
ScriptElement::FireErrorEvent()
{
nsCOMPtr<nsIContent> cont =
do_QueryInterface((nsIScriptElement*) this);
return nsContentUtils::DispatchTrustedEvent(cont->OwnerDoc(),
cont,
NS_LITERAL_STRING("error"),
false /* bubbles */,
false /* cancelable */);
}
NS_IMETHODIMP
ScriptElement::ScriptEvaluated(nsresult aResult,
nsIScriptElement *aElement,
bool aIsInline)
{
nsresult rv = NS_OK;
if (!aIsInline) {
nsCOMPtr<nsIContent> cont =
do_QueryInterface((nsIScriptElement*) this);
RefPtr<nsPresContext> presContext =
nsContentUtils::GetContextForContent(cont);
nsEventStatus status = nsEventStatus_eIgnore;
EventMessage message = NS_SUCCEEDED(aResult) ? eLoad : eLoadError;
WidgetEvent event(true, message);
// Load event doesn't bubble.
event.mFlags.mBubbles = (message != eLoad);
EventDispatcher::Dispatch(cont, presContext, &event, nullptr, &status);
}
return rv;
}
void
ScriptElement::CharacterDataChanged(nsIDocument *aDocument,
nsIContent* aContent,
CharacterDataChangeInfo* aInfo)
{
MaybeProcessScript();
}
void
ScriptElement::AttributeChanged(nsIDocument* aDocument,
Element* aElement,
int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType,
const nsAttrValue* aOldValue)
{
MaybeProcessScript();
}
void
ScriptElement::ContentAppended(nsIDocument* aDocument,
nsIContent* aContainer,
nsIContent* aFirstNewContent,
int32_t aNewIndexInContainer)
{
MaybeProcessScript();
}
void
ScriptElement::ContentInserted(nsIDocument *aDocument,
nsIContent* aContainer,
nsIContent* aChild,
int32_t aIndexInContainer)
{
MaybeProcessScript();
}
bool
ScriptElement::MaybeProcessScript()
{
nsCOMPtr<nsIContent> cont =
do_QueryInterface((nsIScriptElement*) this);
NS_ASSERTION(cont->DebugGetSlots()->mMutationObservers.Contains(this),
"You forgot to add self as observer");
if (mAlreadyStarted || !mDoneAddingChildren ||
!cont->GetComposedDoc() || mMalformed || !HasScriptContent()) {
return false;
}
nsIDocument* ownerDoc = cont->OwnerDoc();
FreezeExecutionAttrs(ownerDoc);
mAlreadyStarted = true;
nsCOMPtr<nsIParser> parser = ((nsIScriptElement*) this)->GetCreatorParser();
if (parser) {
nsCOMPtr<nsIContentSink> sink = parser->GetContentSink();
if (sink) {
nsCOMPtr<nsIDocument> parserDoc = do_QueryInterface(sink->GetTarget());
if (ownerDoc != parserDoc) {
// Willful violation of HTML5 as of 2010-12-01
return false;
}
}
}
RefPtr<ScriptLoader> loader = ownerDoc->ScriptLoader();
return loader->ProcessScriptElement(this);
}
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