ScriptElement.h (2015B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef mozilla_dom_ScriptElement_h 8 #define mozilla_dom_ScriptElement_h 9 10 #include "mozilla/Attributes.h" 11 #include "nsIScriptElement.h" 12 #include "nsIScriptLoaderObserver.h" 13 #include "nsStubMutationObserver.h" 14 15 class nsIParser; 16 17 namespace mozilla::dom { 18 19 /** 20 * Baseclass useful for script elements (such as <xhtml:script> and 21 * <svg:script>). Currently the class assumes that only the 'src' 22 * attribute and the children of the class affect what script to execute. 23 */ 24 25 class ScriptElement : public nsIScriptElement, public nsStubMutationObserver { 26 public: 27 // nsIScriptLoaderObserver 28 NS_DECL_NSISCRIPTLOADEROBSERVER 29 30 // nsIMutationObserver 31 NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED 32 NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED 33 NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED 34 NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED 35 NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED 36 37 explicit ScriptElement(FromParser aFromParser) 38 : nsIScriptElement(aFromParser) {} 39 40 virtual nsresult FireErrorEvent() override; 41 42 virtual bool GetScriptType(nsAString& aType) override; 43 44 protected: 45 // Internal methods 46 47 /** 48 * Check if this element contains any linked script. 49 */ 50 virtual bool HasExternalScriptContent() = 0; 51 52 virtual bool MaybeProcessScript(nsCOMPtr<nsIParser> aParser) override; 53 54 virtual MOZ_CAN_RUN_SCRIPT nsresult 55 GetTrustedTypesCompliantInlineScriptText(nsString& aSourceText) override; 56 57 private: 58 // https://github.com/w3c/trusted-types/pull/579 59 void UpdateTrustWorthiness(MutationEffectOnScript aMutationEffectOnScript); 60 61 bool MaybeProcessScript(const nsAString& aSourceText); 62 }; 63 64 } // namespace mozilla::dom 65 66 #endif // mozilla_dom_ScriptElement_h