336 lines
8.6 KiB
C++
336 lines
8.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsGkAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsIDocument.h"
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#include "nsIURI.h"
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#include "nsNetUtil.h"
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#include "nsContentUtils.h"
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#include "nsUnicharUtils.h" // for nsCaseInsensitiveStringComparator()
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#include "nsIScriptContext.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIXPConnect.h"
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#include "nsServiceManagerUtils.h"
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#include "nsError.h"
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#include "nsIArray.h"
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#include "nsTArray.h"
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#include "nsDOMJSUtils.h"
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#include "nsISupportsImpl.h"
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#include "mozilla/dom/HTMLScriptElement.h"
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#include "mozilla/dom/HTMLScriptElementBinding.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Script)
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namespace mozilla {
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namespace dom {
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JSObject*
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HTMLScriptElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLScriptElementBinding::Wrap(aCx, this, aGivenProto);
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}
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HTMLScriptElement::HTMLScriptElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo,
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FromParser aFromParser)
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: nsGenericHTMLElement(aNodeInfo)
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, ScriptElement(aFromParser)
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{
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AddMutationObserver(this);
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}
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HTMLScriptElement::~HTMLScriptElement()
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{
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}
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NS_IMPL_ISUPPORTS_INHERITED(HTMLScriptElement, nsGenericHTMLElement,
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nsIDOMHTMLScriptElement,
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nsIScriptLoaderObserver,
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nsIScriptElement,
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nsIMutationObserver)
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nsresult
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HTMLScriptElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers)
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{
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nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
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aBindingParent,
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aCompileEventHandlers);
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NS_ENSURE_SUCCESS(rv, rv);
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if (GetComposedDoc()) {
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MaybeProcessScript();
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}
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return NS_OK;
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}
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bool
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HTMLScriptElement::ParseAttribute(int32_t aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::crossorigin) {
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ParseCORSValue(aValue, aResult);
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return true;
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}
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if (aAttribute == nsGkAtoms::integrity) {
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aResult.ParseStringOrAtom(aValue);
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return true;
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}
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aResult);
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}
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nsresult
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HTMLScriptElement::Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const
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{
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*aResult = nullptr;
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already_AddRefed<mozilla::dom::NodeInfo> ni = RefPtr<mozilla::dom::NodeInfo>(aNodeInfo).forget();
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HTMLScriptElement* it = new HTMLScriptElement(ni, NOT_FROM_PARSER);
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nsCOMPtr<nsINode> kungFuDeathGrip = it;
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nsresult rv = const_cast<HTMLScriptElement*>(this)->CopyInnerTo(it);
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NS_ENSURE_SUCCESS(rv, rv);
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// The clone should be marked evaluated if we are.
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it->mAlreadyStarted = mAlreadyStarted;
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it->mLineNumber = mLineNumber;
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it->mMalformed = mMalformed;
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kungFuDeathGrip.swap(*aResult);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLScriptElement::GetText(nsAString& aValue)
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{
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if (!nsContentUtils::GetNodeTextContent(this, false, aValue, fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLScriptElement::SetText(const nsAString& aValue)
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{
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ErrorResult rv;
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SetText(aValue, rv);
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return rv.StealNSResult();
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}
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void
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HTMLScriptElement::SetText(const nsAString& aValue, ErrorResult& rv)
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{
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rv = nsContentUtils::SetNodeTextContent(this, aValue, true);
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}
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NS_IMPL_STRING_ATTR(HTMLScriptElement, Charset, charset)
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NS_IMPL_BOOL_ATTR(HTMLScriptElement, Defer, defer)
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// If this ever gets changed to return "" if the attr value is "" (see
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// https://github.com/whatwg/html/issues/1739 for why it might not get changed),
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// it may be worth it to use GetSrc instead of GetAttr and manual
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// NewURIWithDocumentCharset in FreezeUriAsyncDefer.
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NS_IMPL_URI_ATTR(HTMLScriptElement, Src, src)
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NS_IMPL_STRING_ATTR(HTMLScriptElement, Type, type)
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NS_IMPL_STRING_ATTR(HTMLScriptElement, HtmlFor, _for)
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NS_IMPL_STRING_ATTR(HTMLScriptElement, Event, event)
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void
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HTMLScriptElement::SetCharset(const nsAString& aCharset, ErrorResult& rv)
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{
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SetHTMLAttr(nsGkAtoms::charset, aCharset, rv);
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}
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void
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HTMLScriptElement::SetDefer(bool aDefer, ErrorResult& rv)
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{
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SetHTMLBoolAttr(nsGkAtoms::defer, aDefer, rv);
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}
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bool
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HTMLScriptElement::Defer()
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{
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return GetBoolAttr(nsGkAtoms::defer);
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}
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void
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HTMLScriptElement::SetSrc(const nsAString& aSrc, ErrorResult& rv)
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{
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rv = SetAttrHelper(nsGkAtoms::src, aSrc);
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}
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void
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HTMLScriptElement::SetType(const nsAString& aType, ErrorResult& rv)
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{
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SetHTMLAttr(nsGkAtoms::type, aType, rv);
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}
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void
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HTMLScriptElement::SetHtmlFor(const nsAString& aHtmlFor, ErrorResult& rv)
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{
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SetHTMLAttr(nsGkAtoms::_for, aHtmlFor, rv);
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}
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void
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HTMLScriptElement::SetEvent(const nsAString& aEvent, ErrorResult& rv)
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{
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SetHTMLAttr(nsGkAtoms::event, aEvent, rv);
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}
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nsresult
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HTMLScriptElement::GetAsync(bool* aValue)
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{
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*aValue = Async();
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return NS_OK;
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}
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bool
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HTMLScriptElement::Async()
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{
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return mForceAsync || GetBoolAttr(nsGkAtoms::async);
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}
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nsresult
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HTMLScriptElement::SetAsync(bool aValue)
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{
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ErrorResult rv;
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SetAsync(aValue, rv);
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return rv.StealNSResult();
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}
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void
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HTMLScriptElement::SetAsync(bool aValue, ErrorResult& rv)
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{
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mForceAsync = false;
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SetHTMLBoolAttr(nsGkAtoms::async, aValue, rv);
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}
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bool
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HTMLScriptElement::NoModule()
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{
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return GetBoolAttr(nsGkAtoms::nomodule);
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}
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void
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HTMLScriptElement::SetNoModule(bool aValue, ErrorResult& aRv)
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{
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SetHTMLBoolAttr(nsGkAtoms::nomodule, aValue, aRv);
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}
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nsresult
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HTMLScriptElement::AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue, bool aNotify)
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{
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if (nsGkAtoms::async == aName && kNameSpaceID_None == aNamespaceID) {
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mForceAsync = false;
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}
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return nsGenericHTMLElement::AfterSetAttr(aNamespaceID, aName, aValue,
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aOldValue, aNotify);
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}
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NS_IMETHODIMP
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HTMLScriptElement::GetInnerHTML(nsAString& aInnerHTML)
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{
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if (!nsContentUtils::GetNodeTextContent(this, false, aInnerHTML, fallible)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return NS_OK;
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}
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void
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HTMLScriptElement::SetInnerHTML(const nsAString& aInnerHTML,
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ErrorResult& aError)
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{
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aError = nsContentUtils::SetNodeTextContent(this, aInnerHTML, true);
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}
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// variation of this code in nsSVGScriptElement - check if changes
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// need to be transfered when modifying
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bool
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HTMLScriptElement::GetScriptType(nsAString& type)
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{
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return GetAttr(kNameSpaceID_None, nsGkAtoms::type, type);
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}
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void
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HTMLScriptElement::GetScriptText(nsAString& text)
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{
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GetText(text);
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}
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void
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HTMLScriptElement::GetScriptCharset(nsAString& charset)
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{
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GetCharset(charset);
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}
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void
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HTMLScriptElement::FreezeExecutionAttrs(nsIDocument* aOwnerDoc)
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{
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if (mFrozen) {
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return;
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}
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MOZ_ASSERT(!mIsModule && !mAsync && !mDefer && !mExternal);
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// Determine whether this is a classic script or a module script.
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nsAutoString type;
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GetScriptType(type);
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mIsModule = aOwnerDoc->ModuleScriptsEnabled() &&
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!type.IsEmpty() && type.LowerCaseEqualsASCII("module");
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// variation of this code in nsSVGScriptElement - check if changes
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// need to be transfered when modifying. Note that we don't use GetSrc here
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// because it will return the base URL when the attr value is "".
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nsAutoString src;
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if (GetAttr(kNameSpaceID_None, nsGkAtoms::src, src)) {
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// Empty src should be treated as invalid URL.
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if (!src.IsEmpty()) {
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nsCOMPtr<nsIURI> baseURI = GetBaseURI();
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nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(mUri),
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src, OwnerDoc(), baseURI);
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}
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// At this point mUri will be null for invalid URLs.
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mExternal = true;
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}
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bool defer, async;
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GetAsync(&async);
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mAsync = (mExternal || mIsModule) && async;
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GetDefer(&defer);
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mDefer = mExternal && !async && defer;
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mFrozen = true;
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}
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CORSMode
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HTMLScriptElement::GetCORSMode() const
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{
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return AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin));
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}
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bool
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HTMLScriptElement::HasScriptContent()
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{
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return (mFrozen ? mExternal : HasAttr(kNameSpaceID_None, nsGkAtoms::src)) ||
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nsContentUtils::HasNonEmptyTextContent(this);
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}
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} // namespace dom
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} // namespace mozilla
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