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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/Document.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->IncrementScriptNestingLevel();
}
nsresult rv = FireErrorEvent();
if (parser) {
parser->DecrementScriptNestingLevel();
}
return rv;
}
return NS_OK;
}
/* virtual */
nsresult ScriptElement::FireErrorEvent() {
nsCOMPtr<nsIContent> cont = do_QueryInterface((nsIScriptElement*)this);
return nsContentUtils::DispatchTrustedEvent(
cont->OwnerDoc(), cont, u"error"_ns, CanBubble::eNo, Cancelable::eNo);
}
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(nsIContent* aContent,
const CharacterDataChangeInfo&) {
MaybeProcessScript();
}
void ScriptElement::AttributeChanged(Element* aElement, int32_t aNameSpaceID,
nsAtom* aAttribute, int32_t aModType,
const nsAttrValue* aOldValue) {
MaybeProcessScript();
}
void ScriptElement::ContentAppended(nsIContent* aFirstNewContent) {
MaybeProcessScript();
}
void ScriptElement::ContentInserted(nsIContent* aChild) {
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;
}
Document* ownerDoc = cont->OwnerDoc();
FreezeExecutionAttrs(ownerDoc);
mAlreadyStarted = true;
nsCOMPtr<nsIParser> parser = ((nsIScriptElement*)this)->GetCreatorParser();
if (parser) {
nsCOMPtr<nsIContentSink> sink = parser->GetContentSink();
if (sink) {
nsCOMPtr<Document> 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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