| // Copyright (c) 2012 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 CONTENT_RENDERER_JAVA_JAVA_BRIDGE_DISPATCHER_H_ |
| #define CONTENT_RENDERER_JAVA_JAVA_BRIDGE_DISPATCHER_H_ |
| |
| #include <map> |
| |
| #include "base/memory/ref_counted.h" |
| #include "content/public/renderer/render_view_observer.h" |
| #include "ipc/ipc_channel_handle.h" |
| #include "third_party/npapi/bindings/npruntime.h" |
| |
| namespace content { |
| class JavaBridgeChannel; |
| struct NPVariant_Param; |
| |
| // This class handles injecting Java objects into the main frame of a |
| // RenderView. The 'add' and 'remove' messages received from the browser |
| // process modify the entries in a map of 'pending' objects. These objects are |
| // bound to the window object of the main frame when that window object is next |
| // cleared. These objects remain bound until the window object is cleared |
| // again. |
| class JavaBridgeDispatcher : public RenderViewObserver { |
| public: |
| JavaBridgeDispatcher(RenderView* render_view); |
| virtual ~JavaBridgeDispatcher(); |
| |
| private: |
| // RenderViewObserver override: |
| virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| virtual void DidClearWindowObject(WebKit::WebFrame* frame) OVERRIDE; |
| |
| // Message handlers |
| void OnAddNamedObject(const string16& name, |
| const NPVariant_Param& variant_param); |
| void OnRemoveNamedObject(const string16& name); |
| |
| void EnsureChannelIsSetUp(); |
| |
| // Objects that will be bound to the window when the window object is next |
| // cleared. We hold a ref to these. |
| typedef std::map<string16, NPVariant> ObjectMap; |
| ObjectMap objects_; |
| scoped_refptr<JavaBridgeChannel> channel_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_JAVA_JAVA_BRIDGE_DISPATCHER_H_ |