1 files changed, 90 insertions, 0 deletions
diff --git a/extensions/renderer/guest_view/extensions_guest_view_container.h b/extensions/renderer/guest_view/extensions_guest_view_container.h
new file mode 100644
index 0000000..9b1424d
--- /dev/null
+++ b/extensions/renderer/guest_view/extensions_guest_view_container.h
@@ -0,0 +1,90 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef EXTENSIONS_RENDERER_GUEST_VIEW_EXTENSIONS_GUEST_VIEW_CONTAINER_H_
+#define EXTENSIONS_RENDERER_GUEST_VIEW_EXTENSIONS_GUEST_VIEW_CONTAINER_H_
+
+#include <queue>
+
+#include "base/memory/linked_ptr.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "extensions/renderer/guest_view/guest_view_container.h"
+#include "extensions/renderer/scoped_persistent.h"
+
+namespace extensions {
+
+class ExtensionsGuestViewContainer : public GuestViewContainer {
+ public:
+  // This class represents an AttachGuest request from Javascript. It includes
+  // the input parameters and the callback function. The Attach operation may
+  // not execute immediately, if the container is not ready or if there are
+  // other attach operations in flight.
+  class AttachRequest {
+   public:
+    AttachRequest(int element_instance_id,
+                  int guest_instance_id,
+                  scoped_ptr<base::DictionaryValue> params,
+                  v8::Handle<v8::Function> callback,
+                  v8::Isolate* isolate);
+    ~AttachRequest();
+
+    int element_instance_id() const { return element_instance_id_; }
+
+    int guest_instance_id() const { return guest_instance_id_; }
+
+    base::DictionaryValue* attach_params() const {
+      return params_.get();
+    }
+
+    bool HasCallback() const;
+
+    v8::Handle<v8::Function> GetCallback() const;
+
+    v8::Isolate* isolate() const { return isolate_; }
+
+   private:
+    const int element_instance_id_;
+    const int guest_instance_id_;
+    scoped_ptr<base::DictionaryValue> params_;
+    ScopedPersistent<v8::Function> callback_;
+    v8::Isolate* const isolate_;
+  };
+
+  explicit ExtensionsGuestViewContainer(content::RenderFrame* render_frame);
+  ~ExtensionsGuestViewContainer() override;
+
+  static ExtensionsGuestViewContainer* FromID(int render_view_routing_id,
+                                              int element_instance_id);
+
+  void AttachGuest(linked_ptr<AttachRequest> request);
+
+  // BrowserPluginDelegate implementation.
+  void SetElementInstanceID(int element_instance_id) override;
+  void Ready() override;
+
+  // GuestViewContainer override.
+  bool HandlesMessage(const IPC::Message& message) override;
+  bool OnMessage(const IPC::Message& message) override;
+
+ private:
+  void OnGuestAttached(int element_instance_id,
+                       int guest_proxy_routing_id);
+
+  void AttachGuestInternal(linked_ptr<AttachRequest> request);
+  void EnqueueAttachRequest(linked_ptr<AttachRequest> request);
+  void PerformPendingAttachRequest();
+  void HandlePendingResponseCallback(int guest_proxy_routing_id);
+
+  bool ready_;
+
+  std::deque<linked_ptr<AttachRequest> > pending_requests_;
+  linked_ptr<AttachRequest> pending_response_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionsGuestViewContainer);
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_RENDERER_GUEST_VIEW_EXTENSIONS_GUEST_VIEW_CONTAINER_H_