mirror of
https://github.com/mozilla/gecko-dev.git
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102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
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/* -*- 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 "nsIScriptElement.h"
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#include "js/loader/ScriptKind.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/ReferrerPolicyBinding.h"
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#include "nsIParser.h"
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#include "nsIWeakReference.h"
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using JS::loader::ScriptKind;
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bool nsIScriptElement::IsClassicNonAsyncDefer() {
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return mKind == ScriptKind::eClassic && !mAsync && !mDefer;
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}
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void nsIScriptElement::SetCreatorParser(nsIParser* aParser) {
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mCreatorParser = do_GetWeakReference(aParser);
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}
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void nsIScriptElement::UnblockParser() {
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if (!IsClassicNonAsyncDefer()) {
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MOZ_ASSERT_UNREACHABLE(
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"Tried to unblock parser for a script type that cannot block "
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"the parser.");
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return;
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}
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nsCOMPtr<nsIParser> parser = do_QueryReferent(mCreatorParser);
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if (parser) {
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parser->UnblockParser();
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}
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}
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void nsIScriptElement::ContinueParserAsync() {
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if (!IsClassicNonAsyncDefer()) {
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MOZ_ASSERT_UNREACHABLE(
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"Tried to continue after a script type that cannot block the parser.");
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return;
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}
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nsCOMPtr<nsIParser> parser = do_QueryReferent(mCreatorParser);
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if (parser) {
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parser->ContinueInterruptedParsingAsync();
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}
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}
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void nsIScriptElement::BeginEvaluating() {
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if (!IsClassicNonAsyncDefer()) {
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return;
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}
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nsCOMPtr<nsIParser> parser = do_QueryReferent(mCreatorParser);
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if (parser) {
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parser->IncrementScriptNestingLevel();
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}
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}
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void nsIScriptElement::EndEvaluating() {
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if (!IsClassicNonAsyncDefer()) {
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return;
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}
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nsCOMPtr<nsIParser> parser = do_QueryReferent(mCreatorParser);
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if (parser) {
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parser->DecrementScriptNestingLevel();
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}
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}
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already_AddRefed<nsIParser> nsIScriptElement::GetCreatorParser() {
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nsCOMPtr<nsIParser> parser = do_QueryReferent(mCreatorParser);
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return parser.forget();
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}
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mozilla::dom::ReferrerPolicy nsIScriptElement::GetReferrerPolicy() {
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return mozilla::dom::ReferrerPolicy::_empty;
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}
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void nsIScriptElement::DetermineKindFromType(
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const mozilla::dom::Document* aOwnerDoc) {
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MOZ_ASSERT((mKind != ScriptKind::eModule) &&
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(mKind != ScriptKind::eImportMap) && !mAsync && !mDefer &&
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!mExternal);
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nsAutoString type;
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GetScriptType(type);
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if (!type.IsEmpty()) {
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if (type.LowerCaseEqualsASCII("module")) {
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mKind = ScriptKind::eModule;
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}
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// https://html.spec.whatwg.org/multipage/scripting.html#prepare-the-script-element
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// Step 11. Otherwise, if the script block's type string is an ASCII
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// case-insensitive match for the string "importmap", then set el's type to
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// "importmap".
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if (type.LowerCaseEqualsASCII("importmap")) {
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mKind = ScriptKind::eImportMap;
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}
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}
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}
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