1 files changed, 119 insertions, 0 deletions
diff --git a/webkit/port/bindings/v8/WorkerContextExecutionProxy.h b/webkit/port/bindings/v8/WorkerContextExecutionProxy.h
new file mode 100644
index 0000000..ac9fcfd
--- /dev/null
+++ b/webkit/port/bindings/v8/WorkerContextExecutionProxy.h
@@ -0,0 +1,119 @@
+// Copyright (c) 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 WorkerContextExecutionProxy_h_
+#define WorkerContextExecutionProxy_h_
+
+#if ENABLE(WORKERS)
+
+#include <list>
+#include <wtf/HashSet.h>
+#include "v8.h"
+#include "v8_index.h"
+
+namespace WebCore {
+
+class Event;
+class V8EventListener;
+class WorkerContext;
+
+class WorkerContextExecutionProxy {
+ public:
+  WorkerContextExecutionProxy(WorkerContext*);
+  ~WorkerContextExecutionProxy();
+
+  // Returns a local handle of the context.
+  v8::Local<v8::Context> GetContext() {
+    return v8::Local<v8::Context>::New(m_context);
+  }
+
+  // Returns the dom constructor function for the given node type.
+  v8::Local<v8::Function> GetConstructor(V8ClassIndex::V8WrapperType t);
+
+  // Finds or creates an event listener;
+  PassRefPtr<V8EventListener> FindOrCreateEventListener(
+      v8::Local<v8::Value> listener, bool is_inline, bool find_only);
+
+  // Removes an event listener;
+  void RemoveEventListener(V8EventListener* listener);
+
+  // Track the event so that we can detach it from the JS wrapper when a worker
+  // terminates. This is needed because we need to be able to dispose these
+  // events and releases references to their event targets: WorkerContext.
+  void TrackEvent(Event* event);
+
+  // Evaluate a script file in the current execution environment.
+  v8::Local<v8::Value> Evaluate(const String& str,
+                                const String& file_name,
+                                int base_line);
+
+  // Returns WorkerContext object.
+  WorkerContext* worker_context() { return m_workerContext; }
+
+  // Returns WorkerContextExecutionProxy object of the currently executing
+  // context.
+  static WorkerContextExecutionProxy* retrieve();
+
+  // Returns the JS wrapper of object.
+  static v8::Handle<v8::Value> ToV8Object(V8ClassIndex::V8WrapperType type,
+                                          void* imp);
+  static v8::Handle<v8::Value> EventToV8Object(Event* event);
+  static v8::Handle<v8::Value> EventTargetToV8Object(EventTarget* target);
+  static v8::Handle<v8::Value> WorkerContextToV8Object(WorkerContext* wc);
+
+ private:
+  void InitContextIfNeeded();
+  void Dispose();
+
+  // Run an already compiled script.
+  v8::Local<v8::Value> RunScript(v8::Handle<v8::Script> script);
+
+  static v8::Local<v8::Object> InstantiateV8Object(
+      V8ClassIndex::V8WrapperType desc_type,
+      V8ClassIndex::V8WrapperType cptr_type,
+      void* impl);
+
+  static bool ForgetV8EventObject(Event* event);
+
+  WorkerContext* m_workerContext;
+  v8::Persistent<v8::Context> m_context;
+  int m_recursion;
+
+  typedef std::list<V8EventListener*> EventListenerList;
+  EventListenerList m_listeners;
+
+  typedef HashSet<Event*> EventSet;
+  EventSet m_events;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(WORKERS)
+
+#endif // WorkerContextExecutionProxy_h_