зеркало из https://github.com/mozilla/gecko-dev.git
238 строки
7.9 KiB
C++
238 строки
7.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "mozilla/dom/Document.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 "nsIScriptError.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* HTMLScriptElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return HTMLScriptElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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HTMLScriptElement::HTMLScriptElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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FromParser aFromParser)
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: nsGenericHTMLElement(std::move(aNodeInfo)), ScriptElement(aFromParser) {
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AddMutationObserver(this);
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}
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HTMLScriptElement::~HTMLScriptElement() {}
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NS_IMPL_ISUPPORTS_INHERITED(HTMLScriptElement, nsGenericHTMLElement,
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nsIScriptLoaderObserver, nsIScriptElement,
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nsIMutationObserver)
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nsresult HTMLScriptElement::BindToTree(BindContext& aContext,
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nsINode& aParent) {
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nsresult rv = nsGenericHTMLElement::BindToTree(aContext, aParent);
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NS_ENSURE_SUCCESS(rv, rv);
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if (IsInComposedDoc()) {
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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 HTMLScriptElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) {
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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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aMaybeScriptedPrincipal, aResult);
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}
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nsresult HTMLScriptElement::Clone(dom::NodeInfo* aNodeInfo,
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nsINode** aResult) const {
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*aResult = nullptr;
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HTMLScriptElement* it =
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new HTMLScriptElement(do_AddRef(aNodeInfo), 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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nsresult HTMLScriptElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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bool aNotify) {
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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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if (nsGkAtoms::src == aName && kNameSpaceID_None == aNamespaceID) {
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mSrcTriggeringPrincipal = nsContentUtils::GetAttrTriggeringPrincipal(
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this, aValue ? aValue->GetStringValue() : EmptyString(),
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aMaybeScriptedPrincipal);
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}
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return nsGenericHTMLElement::AfterSetAttr(
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aNamespaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify);
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}
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void HTMLScriptElement::GetInnerHTML(nsAString& aInnerHTML,
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OOMReporter& aError) {
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if (!nsContentUtils::GetNodeTextContent(this, false, aInnerHTML, fallible)) {
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aError.ReportOOM();
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}
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}
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void HTMLScriptElement::SetInnerHTML(const nsAString& aInnerHTML,
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nsIPrincipal* aScriptedPrincipal,
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ErrorResult& aError) {
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aError = nsContentUtils::SetNodeTextContent(this, aInnerHTML, true);
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}
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void HTMLScriptElement::GetText(nsAString& aValue, ErrorResult& aRv) {
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if (!nsContentUtils::GetNodeTextContent(this, false, aValue, fallible)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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}
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}
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void HTMLScriptElement::SetText(const nsAString& aValue, ErrorResult& aRv) {
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aRv = nsContentUtils::SetNodeTextContent(this, aValue, 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 HTMLScriptElement::GetScriptType(nsAString& aType) {
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nsAutoString type;
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if (!GetAttr(kNameSpaceID_None, nsGkAtoms::type, type)) {
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return false;
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}
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// ASCII whitespace https://infra.spec.whatwg.org/#ascii-whitespace:
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// U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, or U+0020 SPACE.
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static const char kASCIIWhitespace[] = "\t\n\f\r ";
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type.Trim(kASCIIWhitespace);
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aType.Assign(type);
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return true;
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}
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void HTMLScriptElement::GetScriptText(nsAString& text) {
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GetText(text, IgnoreErrors());
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}
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void HTMLScriptElement::GetScriptCharset(nsAString& charset) {
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GetCharset(charset);
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}
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void HTMLScriptElement::FreezeExecutionAttrs(Document* aOwnerDoc) {
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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() && !type.IsEmpty() &&
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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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nsContentUtils::NewURIWithDocumentCharset(getter_AddRefs(mUri), src,
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OwnerDoc(), GetBaseURI());
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if (!mUri) {
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AutoTArray<nsString, 2> params = {NS_LITERAL_STRING("src"), src};
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nsContentUtils::ReportToConsole(
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nsIScriptError::warningFlag, NS_LITERAL_CSTRING("HTML"), OwnerDoc(),
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nsContentUtils::eDOM_PROPERTIES, "ScriptSourceInvalidUri", params,
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nullptr, EmptyString(), GetScriptLineNumber(),
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GetScriptColumnNumber());
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}
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} else {
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AutoTArray<nsString, 1> params = {NS_LITERAL_STRING("src")};
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nsContentUtils::ReportToConsole(
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nsIScriptError::warningFlag, NS_LITERAL_CSTRING("HTML"), OwnerDoc(),
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nsContentUtils::eDOM_PROPERTIES, "ScriptSourceEmpty", params, nullptr,
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EmptyString(), GetScriptLineNumber(), GetScriptColumnNumber());
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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 async = (mExternal || mIsModule) && Async();
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bool defer = mExternal && Defer();
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mDefer = !async && defer;
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mAsync = async;
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mFrozen = true;
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}
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CORSMode HTMLScriptElement::GetCORSMode() const {
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return AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin));
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}
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mozilla::net::ReferrerPolicy HTMLScriptElement::GetReferrerPolicy() {
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return GetReferrerPolicyAsEnum();
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}
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bool HTMLScriptElement::HasScriptContent() {
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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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