212 lines
8.0 KiB
C++
212 lines
8.0 KiB
C++
/*
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* Copyright (C) 1999 Harri Porten (porten@kde.org)
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* Copyright (C) 2001 Peter Kelly (pmk@post.com)
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* Copyright (C) 2008-2019 Apple Inc. All rights reserved.
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* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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#include "FrameLoaderTypes.h"
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#include "JSWindowProxy.h"
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#include "SerializedScriptValue.h"
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#include "WindowProxy.h"
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#include <JavaScriptCore/JSBase.h>
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#include <JavaScriptCore/Strong.h>
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#include <wtf/Forward.h>
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#include <wtf/RefPtr.h>
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#include <wtf/WeakPtr.h>
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#include <wtf/text/TextPosition.h>
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#if PLATFORM(COCOA)
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#include <wtf/RetainPtr.h>
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OBJC_CLASS JSContext;
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OBJC_CLASS WebScriptObject;
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#endif
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struct NPObject;
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namespace JSC {
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class CallFrame;
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class JSGlobalObject;
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class JSInternalPromise;
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class JSModuleRecord;
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namespace Bindings {
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class Instance;
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class RootObject;
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}
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}
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namespace WebCore {
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class CachedScriptFetcher;
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class Frame;
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class HTMLDocument;
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class HTMLPlugInElement;
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class LoadableModuleScript;
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class ModuleFetchParameters;
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class ScriptSourceCode;
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class SecurityOrigin;
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class Widget;
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enum class RunAsAsyncFunction : bool;
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struct ExceptionDetails;
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struct RunJavaScriptParameters;
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enum ReasonForCallingCanExecuteScripts {
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AboutToCreateEventListener,
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AboutToExecuteScript,
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NotAboutToExecuteScript
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};
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using ValueOrException = Expected<JSC::JSValue, ExceptionDetails>;
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class ScriptController : public CanMakeWeakPtr<ScriptController> {
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WTF_MAKE_FAST_ALLOCATED;
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using RootObjectMap = HashMap<void*, Ref<JSC::Bindings::RootObject>>;
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public:
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explicit ScriptController(Frame&);
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~ScriptController();
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enum class WorldType { User, Internal };
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WEBCORE_EXPORT static Ref<DOMWrapperWorld> createWorld(const String& name, WorldType = WorldType::Internal);
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JSDOMWindow* globalObject(DOMWrapperWorld& world)
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{
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return JSC::jsCast<JSDOMWindow*>(jsWindowProxy(world).window());
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}
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static void getAllWorlds(Vector<Ref<DOMWrapperWorld>>&);
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using ResolveFunction = CompletionHandler<void(ValueOrException)>;
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WEBCORE_EXPORT JSC::JSValue executeScriptIgnoringException(const String& script, bool forceUserGesture = false);
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WEBCORE_EXPORT JSC::JSValue executeScriptInWorldIgnoringException(DOMWrapperWorld&, const String& script, bool forceUserGesture = false);
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WEBCORE_EXPORT JSC::JSValue executeUserAgentScriptInWorldIgnoringException(DOMWrapperWorld&, const String& script, bool forceUserGesture);
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WEBCORE_EXPORT ValueOrException executeUserAgentScriptInWorld(DOMWrapperWorld&, const String& script, bool forceUserGesture);
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WEBCORE_EXPORT void executeAsynchronousUserAgentScriptInWorld(DOMWrapperWorld&, RunJavaScriptParameters&&, ResolveFunction&&);
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ValueOrException evaluateInWorld(const ScriptSourceCode&, DOMWrapperWorld&);
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JSC::JSValue evaluateIgnoringException(const ScriptSourceCode&);
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JSC::JSValue evaluateInWorldIgnoringException(const ScriptSourceCode&, DOMWrapperWorld&);
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Expected<void, ExceptionDetails> shouldAllowUserAgentScripts(Document&) const;
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// This asserts that URL argument is a JavaScript URL.
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void executeJavaScriptURL(const URL&, RefPtr<SecurityOrigin> = nullptr, ShouldReplaceDocumentIfJavaScriptURL = ReplaceDocumentIfJavaScriptURL);
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static void initializeMainThread();
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void loadModuleScriptInWorld(LoadableModuleScript&, const String& moduleName, Ref<ModuleFetchParameters>&&, DOMWrapperWorld&);
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void loadModuleScript(LoadableModuleScript&, const String& moduleName, Ref<ModuleFetchParameters>&&);
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void loadModuleScriptInWorld(LoadableModuleScript&, const ScriptSourceCode&, DOMWrapperWorld&);
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void loadModuleScript(LoadableModuleScript&, const ScriptSourceCode&);
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JSC::JSValue linkAndEvaluateModuleScriptInWorld(LoadableModuleScript& , DOMWrapperWorld&);
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JSC::JSValue linkAndEvaluateModuleScript(LoadableModuleScript&);
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JSC::JSValue evaluateModule(const URL&, JSC::JSModuleRecord&, DOMWrapperWorld&, JSC::JSValue awaitedValue, JSC::JSValue resumeMode);
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JSC::JSValue evaluateModule(const URL&, JSC::JSModuleRecord&, JSC::JSValue awaitedValue, JSC::JSValue resumeMode);
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WTF::TextPosition eventHandlerPosition() const;
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void enableEval();
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void enableWebAssembly();
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void disableEval(const String& errorMessage);
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void disableWebAssembly(const String& errorMessage);
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static bool canAccessFromCurrentOrigin(Frame*, Document& accessingDocument);
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WEBCORE_EXPORT bool canExecuteScripts(ReasonForCallingCanExecuteScripts);
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void setPaused(bool b) { m_paused = b; }
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bool isPaused() const { return m_paused; }
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const URL* sourceURL() const { return m_sourceURL; } // nullptr if we are not evaluating any script
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void updateDocument();
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void namedItemAdded(HTMLDocument*, const AtomString&) { }
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void namedItemRemoved(HTMLDocument*, const AtomString&) { }
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void clearScriptObjects();
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WEBCORE_EXPORT void cleanupScriptObjectsForPlugin(void*);
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void updatePlatformScriptObjects();
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RefPtr<JSC::Bindings::Instance> createScriptInstanceForWidget(Widget*);
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WEBCORE_EXPORT JSC::Bindings::RootObject* bindingRootObject();
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JSC::Bindings::RootObject* cacheableBindingRootObject();
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JSC::Bindings::RootObject* existingCacheableBindingRootObject() const { return m_cacheableBindingRootObject.get(); }
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WEBCORE_EXPORT Ref<JSC::Bindings::RootObject> createRootObject(void* nativeHandle);
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void collectIsolatedContexts(Vector<std::pair<JSC::JSGlobalObject*, SecurityOrigin*>>&);
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#if PLATFORM(COCOA)
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WEBCORE_EXPORT WebScriptObject* windowScriptObject();
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WEBCORE_EXPORT JSContext *javaScriptContext();
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#endif
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WEBCORE_EXPORT JSC::JSObject* jsObjectForPluginElement(HTMLPlugInElement*);
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#if ENABLE(NETSCAPE_PLUGIN_API)
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WEBCORE_EXPORT NPObject* windowScriptNPObject();
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#endif
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void initScriptForWindowProxy(JSWindowProxy&);
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bool willReplaceWithResultOfExecutingJavascriptURL() const { return m_willReplaceWithResultOfExecutingJavascriptURL; }
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private:
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ValueOrException executeUserAgentScriptInWorldInternal(DOMWrapperWorld&, RunJavaScriptParameters&&);
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ValueOrException executeScriptInWorld(DOMWrapperWorld&, RunJavaScriptParameters&&);
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ValueOrException callInWorld(RunJavaScriptParameters&&, DOMWrapperWorld&);
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void setupModuleScriptHandlers(LoadableModuleScript&, JSC::JSInternalPromise&, DOMWrapperWorld&);
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void disconnectPlatformScriptObjects();
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WEBCORE_EXPORT WindowProxy& windowProxy();
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WEBCORE_EXPORT JSWindowProxy& jsWindowProxy(DOMWrapperWorld&);
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Frame& m_frame;
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const URL* m_sourceURL { nullptr };
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bool m_paused;
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bool m_willReplaceWithResultOfExecutingJavascriptURL { false };
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// The root object used for objects bound outside the context of a plugin, such
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// as NPAPI plugins. The plugins using these objects prevent a page from being cached so they
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// are safe to invalidate() when WebKit navigates away from the page that contains them.
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RefPtr<JSC::Bindings::RootObject> m_bindingRootObject;
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// Unlike m_bindingRootObject these objects are used in pages that are cached, so they are not invalidate()'d.
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// This ensures they are still available when the page is restored.
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RefPtr<JSC::Bindings::RootObject> m_cacheableBindingRootObject;
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RootObjectMap m_rootObjects;
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#if ENABLE(NETSCAPE_PLUGIN_API)
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NPObject* m_windowScriptNPObject;
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#endif
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#if PLATFORM(COCOA)
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RetainPtr<WebScriptObject> m_windowScriptObject;
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#endif
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};
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} // namespace WebCore
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