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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 // | |
| 5 // A class that receives IPC messages from an NPObjectProxy and calls the real | |
| 6 // NPObject. | |
| 7 | |
| 8 #ifndef CONTENT_CHILD_NPOBJECT_STUB_H_ | |
| 9 #define CONTENT_CHILD_NPOBJECT_STUB_H_ | |
| 10 | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/memory/ref_counted.h" | |
| 14 #include "base/memory/weak_ptr.h" | |
| 15 #include "content/child/npobject_base.h" | |
| 16 #include "ipc/ipc_listener.h" | |
| 17 #include "ipc/ipc_sender.h" | |
| 18 #include "url/gurl.h" | |
| 19 | |
| 20 struct NPObject; | |
| 21 | |
| 22 namespace content { | |
| 23 class NPChannelBase; | |
| 24 struct NPIdentifier_Param; | |
| 25 struct NPVariant_Param; | |
| 26 | |
| 27 // This wraps an NPObject and converts IPC messages from NPObjectProxy to calls | |
| 28 // to the object. The results are marshalled back. See npobject_proxy.h for | |
| 29 // more information. | |
| 30 class NPObjectStub : public IPC::Listener, | |
| 31 public IPC::Sender, | |
| 32 public base::SupportsWeakPtr<NPObjectStub>, | |
| 33 public NPObjectBase { | |
| 34 public: | |
| 35 NPObjectStub(NPObject* npobject, | |
| 36 NPChannelBase* channel, | |
| 37 int route_id, | |
| 38 int render_view_id, | |
| 39 const GURL& page_url); | |
| 40 virtual ~NPObjectStub(); | |
| 41 | |
| 42 // Schedules tear-down of this stub. The underlying NPObject reference is | |
| 43 // released, and further invokations from the IPC channel will fail once this | |
| 44 // call has returned. Deletion of the stub is deferred to the main loop, in | |
| 45 // case it is touched as the stack unwinds. DeleteSoon() is safe to call | |
| 46 // more than once, until control returns to the main loop. | |
| 47 void DeleteSoon(); | |
| 48 | |
| 49 // IPC::Sender implementation: | |
| 50 virtual bool Send(IPC::Message* msg) OVERRIDE; | |
| 51 | |
| 52 // NPObjectBase implementation. | |
| 53 virtual NPObject* GetUnderlyingNPObject() OVERRIDE; | |
| 54 virtual IPC::Listener* GetChannelListener() OVERRIDE; | |
| 55 | |
| 56 private: | |
| 57 // IPC::Listener implementation: | |
| 58 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | |
| 59 virtual void OnChannelError() OVERRIDE; | |
| 60 | |
| 61 // message handlers | |
| 62 void OnRelease(IPC::Message* reply_msg); | |
| 63 void OnHasMethod(const NPIdentifier_Param& name, | |
| 64 bool* result); | |
| 65 void OnInvoke(bool is_default, | |
| 66 const NPIdentifier_Param& method, | |
| 67 const std::vector<NPVariant_Param>& args, | |
| 68 IPC::Message* reply_msg); | |
| 69 void OnHasProperty(const NPIdentifier_Param& name, | |
| 70 bool* result); | |
| 71 void OnGetProperty(const NPIdentifier_Param& name, | |
| 72 NPVariant_Param* property, | |
| 73 bool* result); | |
| 74 void OnSetProperty(const NPIdentifier_Param& name, | |
| 75 const NPVariant_Param& property, | |
| 76 IPC::Message* reply_msg); | |
| 77 void OnRemoveProperty(const NPIdentifier_Param& name, | |
| 78 bool* result); | |
| 79 void OnInvalidate(); | |
| 80 void OnEnumeration(std::vector<NPIdentifier_Param>* value, | |
| 81 bool* result); | |
| 82 void OnConstruct(const std::vector<NPVariant_Param>& args, | |
| 83 IPC::Message* reply_msg); | |
| 84 void OnEvaluate(const std::string& script, bool popups_allowed, | |
| 85 IPC::Message* reply_msg); | |
| 86 | |
| 87 private: | |
| 88 NPObject* npobject_; | |
| 89 scoped_refptr<NPChannelBase> channel_; | |
| 90 int route_id_; | |
| 91 int render_view_id_; | |
| 92 | |
| 93 // The url of the main frame hosting the plugin. | |
| 94 GURL page_url_; | |
| 95 }; | |
| 96 | |
| 97 } // namespace content | |
| 98 | |
| 99 #endif // CONTENT_CHILD_NPOBJECT_STUB_H_ | |
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