michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsScriptElement.h"
michael@0: #include "mozilla/BasicEvents.h"
michael@0: #include "mozilla/EventDispatcher.h"
michael@0: #include "mozilla/dom/Element.h"
michael@0: #include "nsContentUtils.h"
michael@0: #include "nsPresContext.h"
michael@0: #include "nsScriptLoader.h"
michael@0: #include "nsIParser.h"
michael@0: #include "nsAutoPtr.h"
michael@0: #include "nsGkAtoms.h"
michael@0: #include "nsContentSink.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsScriptElement::ScriptAvailable(nsresult aResult,
michael@0:                                  nsIScriptElement *aElement,
michael@0:                                  bool aIsInline,
michael@0:                                  nsIURI *aURI,
michael@0:                                  int32_t aLineNo)
michael@0: {
michael@0:   if (!aIsInline && NS_FAILED(aResult)) {
michael@0:     return FireErrorEvent();
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* virtual */ nsresult
michael@0: nsScriptElement::FireErrorEvent()
michael@0: {
michael@0:   nsCOMPtr<nsIContent> cont =
michael@0:     do_QueryInterface((nsIScriptElement*) this);
michael@0: 
michael@0:   return nsContentUtils::DispatchTrustedEvent(cont->OwnerDoc(),
michael@0:                                               cont,
michael@0:                                               NS_LITERAL_STRING("error"),
michael@0:                                               false /* bubbles */,
michael@0:                                               false /* cancelable */);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsScriptElement::ScriptEvaluated(nsresult aResult,
michael@0:                                  nsIScriptElement *aElement,
michael@0:                                  bool aIsInline)
michael@0: {
michael@0:   nsresult rv = NS_OK;
michael@0:   if (!aIsInline) {
michael@0:     nsCOMPtr<nsIContent> cont =
michael@0:       do_QueryInterface((nsIScriptElement*) this);
michael@0: 
michael@0:     nsRefPtr<nsPresContext> presContext =
michael@0:       nsContentUtils::GetContextForContent(cont);
michael@0: 
michael@0:     nsEventStatus status = nsEventStatus_eIgnore;
michael@0:     uint32_t type = NS_SUCCEEDED(aResult) ? NS_LOAD : NS_LOAD_ERROR;
michael@0:     WidgetEvent event(true, type);
michael@0:     // Load event doesn't bubble.
michael@0:     event.mFlags.mBubbles = (type != NS_LOAD);
michael@0: 
michael@0:     EventDispatcher::Dispatch(cont, presContext, &event, nullptr, &status);
michael@0:   }
michael@0: 
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: void
michael@0: nsScriptElement::CharacterDataChanged(nsIDocument *aDocument,
michael@0:                                       nsIContent* aContent,
michael@0:                                       CharacterDataChangeInfo* aInfo)
michael@0: {
michael@0:   MaybeProcessScript();
michael@0: }
michael@0: 
michael@0: void
michael@0: nsScriptElement::AttributeChanged(nsIDocument* aDocument,
michael@0:                                   Element* aElement,
michael@0:                                   int32_t aNameSpaceID,
michael@0:                                   nsIAtom* aAttribute,
michael@0:                                   int32_t aModType)
michael@0: {
michael@0:   MaybeProcessScript();
michael@0: }
michael@0: 
michael@0: void
michael@0: nsScriptElement::ContentAppended(nsIDocument* aDocument,
michael@0:                                  nsIContent* aContainer,
michael@0:                                  nsIContent* aFirstNewContent,
michael@0:                                  int32_t aNewIndexInContainer)
michael@0: {
michael@0:   MaybeProcessScript();
michael@0: }
michael@0: 
michael@0: void
michael@0: nsScriptElement::ContentInserted(nsIDocument *aDocument,
michael@0:                                  nsIContent* aContainer,
michael@0:                                  nsIContent* aChild,
michael@0:                                  int32_t aIndexInContainer)
michael@0: {
michael@0:   MaybeProcessScript();
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsScriptElement::MaybeProcessScript()
michael@0: {
michael@0:   nsCOMPtr<nsIContent> cont =
michael@0:     do_QueryInterface((nsIScriptElement*) this);
michael@0: 
michael@0:   NS_ASSERTION(cont->DebugGetSlots()->mMutationObservers.Contains(this),
michael@0:                "You forgot to add self as observer");
michael@0: 
michael@0:   if (mAlreadyStarted || !mDoneAddingChildren || !cont->IsInDoc() ||
michael@0:       mMalformed || !HasScriptContent()) {
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   FreezeUriAsyncDefer();
michael@0: 
michael@0:   mAlreadyStarted = true;
michael@0: 
michael@0:   nsIDocument* ownerDoc = cont->OwnerDoc();
michael@0:   nsCOMPtr<nsIParser> parser = ((nsIScriptElement*) this)->GetCreatorParser();
michael@0:   if (parser) {
michael@0:     nsCOMPtr<nsIContentSink> sink = parser->GetContentSink();
michael@0:     if (sink) {
michael@0:       nsCOMPtr<nsIDocument> parserDoc = do_QueryInterface(sink->GetTarget());
michael@0:       if (ownerDoc != parserDoc) {
michael@0:         // Willful violation of HTML5 as of 2010-12-01
michael@0:         return false;
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   nsRefPtr<nsScriptLoader> loader = ownerDoc->ScriptLoader();
michael@0:   return loader->ProcessScriptElement(this);
michael@0: }