| /* |
| * Copyright (C) 2008, 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef ScriptController_h |
| #define ScriptController_h |
| |
| #include "bindings/v8/ScriptValue.h" |
| #include "bindings/v8/SharedPersistent.h" |
| |
| #include "core/fetch/CrossOriginAccessControl.h" |
| #include "wtf/Forward.h" |
| #include "wtf/HashMap.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/Vector.h" |
| #include "wtf/text/TextPosition.h" |
| #include <v8.h> |
| |
| struct NPObject; |
| |
| namespace WebCore { |
| |
| class DOMWrapperWorld; |
| class Event; |
| class Frame; |
| class HTMLDocument; |
| class HTMLPlugInElement; |
| class KURL; |
| class ScriptSourceCode; |
| class ScriptState; |
| class SecurityOrigin; |
| class V8WindowShell; |
| class Widget; |
| |
| typedef WTF::Vector<v8::Extension*> V8Extensions; |
| |
| enum ReasonForCallingCanExecuteScripts { |
| AboutToExecuteScript, |
| NotAboutToExecuteScript |
| }; |
| |
| class ScriptController { |
| public: |
| enum ExecuteScriptPolicy { |
| ExecuteScriptWhenScriptsDisabled, |
| DoNotExecuteScriptWhenScriptsDisabled |
| }; |
| |
| ScriptController(Frame*); |
| ~ScriptController(); |
| |
| bool initializeMainWorld(); |
| V8WindowShell* windowShell(DOMWrapperWorld*); |
| V8WindowShell* existingWindowShell(DOMWrapperWorld*); |
| |
| // Evaluate JavaScript in the main world. |
| void executeScriptInMainWorld(const String&, ExecuteScriptPolicy = DoNotExecuteScriptWhenScriptsDisabled); |
| void executeScriptInMainWorld(const ScriptSourceCode&, AccessControlStatus = NotSharableCrossOrigin); |
| ScriptValue executeScriptInMainWorldAndReturnValue(const ScriptSourceCode&); |
| v8::Local<v8::Value> executeScriptAndReturnValue(v8::Handle<v8::Context>, const ScriptSourceCode&, AccessControlStatus = NotSharableCrossOrigin); |
| |
| // Executes JavaScript in an isolated world. The script gets its own global scope, |
| // its own prototypes for intrinsic JavaScript objects (String, Array, and so-on), |
| // and its own wrappers for all DOM nodes and DOM constructors. |
| // |
| // If an isolated world with the specified ID already exists, it is reused. |
| // Otherwise, a new world is created. |
| // |
| // FIXME: Get rid of extensionGroup here. |
| void executeScriptInIsolatedWorld(int worldID, const Vector<ScriptSourceCode>& sources, int extensionGroup, Vector<ScriptValue>* results); |
| |
| // Returns true if argument is a JavaScript URL. |
| bool executeScriptIfJavaScriptURL(const KURL&); |
| |
| v8::Local<v8::Value> callFunction(v8::Handle<v8::Function>, v8::Handle<v8::Object>, int argc, v8::Handle<v8::Value> argv[]); |
| static v8::Local<v8::Value> callFunction(ExecutionContext*, v8::Handle<v8::Function>, v8::Handle<v8::Object> receiver, int argc, v8::Handle<v8::Value> args[], v8::Isolate*); |
| |
| // Returns true if the current world is isolated, and has its own Content |
| // Security Policy. In this case, the policy of the main world should be |
| // ignored when evaluating resources injected into the DOM. |
| bool shouldBypassMainWorldContentSecurityPolicy(); |
| |
| // Creates a property of the global object of a frame. |
| void bindToWindowObject(Frame*, const String& key, NPObject*); |
| |
| PassRefPtr<SharedPersistent<v8::Object> > createPluginWrapper(Widget*); |
| |
| void enableEval(); |
| void disableEval(const String& errorMessage); |
| |
| static bool canAccessFromCurrentOrigin(Frame*); |
| |
| static void setCaptureCallStackForUncaughtExceptions(bool); |
| void collectIsolatedContexts(Vector<std::pair<ScriptState*, SecurityOrigin*> >&); |
| |
| bool canExecuteScripts(ReasonForCallingCanExecuteScripts); |
| |
| // Returns V8 Context. If none exists, creates a new context. |
| // It is potentially slow and consumes memory. |
| static v8::Local<v8::Context> mainWorldContext(Frame*); |
| v8::Local<v8::Context> mainWorldContext(); |
| v8::Local<v8::Context> currentWorldContext(); |
| |
| TextPosition eventHandlerPosition() const; |
| |
| const String* sourceURL() const { return m_sourceURL; } // 0 if we are not evaluating any script. |
| |
| void clearWindowShell(); |
| void updateDocument(); |
| |
| void namedItemAdded(HTMLDocument*, const AtomicString&); |
| void namedItemRemoved(HTMLDocument*, const AtomicString&); |
| |
| void updateSecurityOrigin(); |
| void clearScriptObjects(); |
| void cleanupScriptObjectsForPlugin(Widget*); |
| |
| void clearForClose(); |
| void clearForOutOfMemory(); |
| |
| NPObject* createScriptObjectForPluginElement(HTMLPlugInElement*); |
| NPObject* windowScriptNPObject(); |
| |
| // Registers a v8 extension to be available on webpages. Will only |
| // affect v8 contexts initialized after this call. Takes ownership of |
| // the v8::Extension object passed. |
| static void registerExtensionIfNeeded(v8::Extension*); |
| static V8Extensions& registeredExtensions(); |
| |
| bool setContextDebugId(int); |
| static int contextDebugId(v8::Handle<v8::Context>); |
| |
| v8::Isolate* isolate() const { return m_isolate; } |
| |
| private: |
| typedef HashMap<int, OwnPtr<V8WindowShell> > IsolatedWorldMap; |
| typedef HashMap<Widget*, NPObject*> PluginObjectMap; |
| |
| ScriptValue evaluateScriptInMainWorld(const ScriptSourceCode&, AccessControlStatus, ExecuteScriptPolicy); |
| void clearForClose(bool destroyGlobal); |
| |
| Frame* m_frame; |
| const String* m_sourceURL; |
| v8::Isolate* m_isolate; |
| |
| OwnPtr<V8WindowShell> m_windowShell; |
| IsolatedWorldMap m_isolatedWorlds; |
| |
| // A mapping between Widgets and their corresponding script object. |
| // This list is used so that when the plugin dies, we can immediately |
| // invalidate all sub-objects which are associated with that plugin. |
| // The frame keeps a NPObject reference for each item on the list. |
| PluginObjectMap m_pluginObjects; |
| |
| NPObject* m_windowScriptNPObject; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ScriptController_h |