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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_HOST_HELPER_H_ | 5 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_HOST_HELPER_H_ |
6 #define CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_HOST_HELPER_H_ | 6 #define CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_HOST_HELPER_H_ |
7 | 7 |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/callback_forward.h" | 11 #include "base/callback_forward.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
| 13 #include "base/memory/weak_ptr.h" |
13 #include "content/common/content_export.h" | 14 #include "content/common/content_export.h" |
14 #include "ppapi/c/dev/ppb_device_ref_dev.h" | 15 #include "ppapi/c/dev/ppb_device_ref_dev.h" |
15 #include "ppapi/host/host_message_context.h" | 16 #include "ppapi/host/host_message_context.h" |
16 #include "url/gurl.h" | 17 #include "url/gurl.h" |
17 | 18 |
18 namespace ppapi { | 19 namespace ppapi { |
19 struct DeviceRefData; | 20 struct DeviceRefData; |
20 | 21 |
21 namespace host { | 22 namespace host { |
22 class ResourceHost; | 23 class ResourceHost; |
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51 virtual int EnumerateDevices(PP_DeviceType_Dev type, | 52 virtual int EnumerateDevices(PP_DeviceType_Dev type, |
52 const GURL& document_url, | 53 const GURL& document_url, |
53 const EnumerateDevicesCallback& callback) = 0; | 54 const EnumerateDevicesCallback& callback) = 0; |
54 // Stop enumerating devices of the specified |request_id|. The |request_id| | 55 // Stop enumerating devices of the specified |request_id|. The |request_id| |
55 // is the return value of EnumerateDevicesCallback. | 56 // is the return value of EnumerateDevicesCallback. |
56 virtual void StopEnumerateDevices(int request_id) = 0; | 57 virtual void StopEnumerateDevices(int request_id) = 0; |
57 }; | 58 }; |
58 | 59 |
59 // |resource_host| and |delegate| must outlive this object. | 60 // |resource_host| and |delegate| must outlive this object. |
60 PepperDeviceEnumerationHostHelper(ppapi::host::ResourceHost* resource_host, | 61 PepperDeviceEnumerationHostHelper(ppapi::host::ResourceHost* resource_host, |
61 Delegate* delegate, | 62 base::WeakPtr<Delegate> delegate, |
62 PP_DeviceType_Dev device_type, | 63 PP_DeviceType_Dev device_type, |
63 const GURL& document_url); | 64 const GURL& document_url); |
64 ~PepperDeviceEnumerationHostHelper(); | 65 ~PepperDeviceEnumerationHostHelper(); |
65 | 66 |
66 // Returns true if the message has been handled. | 67 // Returns true if the message has been handled. |
67 bool HandleResourceMessage(const IPC::Message& msg, | 68 bool HandleResourceMessage(const IPC::Message& msg, |
68 ppapi::host::HostMessageContext* context, | 69 ppapi::host::HostMessageContext* context, |
69 int32_t* result); | 70 int32_t* result); |
70 | 71 |
71 private: | 72 private: |
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86 | 87 |
87 void OnEnumerateDevicesComplete( | 88 void OnEnumerateDevicesComplete( |
88 int request_id, | 89 int request_id, |
89 const std::vector<ppapi::DeviceRefData>& devices); | 90 const std::vector<ppapi::DeviceRefData>& devices); |
90 void OnNotifyDeviceChange(uint32_t callback_id, | 91 void OnNotifyDeviceChange(uint32_t callback_id, |
91 int request_id, | 92 int request_id, |
92 const std::vector<ppapi::DeviceRefData>& devices); | 93 const std::vector<ppapi::DeviceRefData>& devices); |
93 | 94 |
94 // Non-owning pointers. | 95 // Non-owning pointers. |
95 ppapi::host::ResourceHost* resource_host_; | 96 ppapi::host::ResourceHost* resource_host_; |
96 Delegate* delegate_; | 97 base::WeakPtr<Delegate> delegate_; |
97 | 98 |
98 PP_DeviceType_Dev device_type_; | 99 PP_DeviceType_Dev device_type_; |
99 GURL document_url_; | 100 GURL document_url_; |
100 | 101 |
101 scoped_ptr<ScopedRequest> enumerate_; | 102 scoped_ptr<ScopedRequest> enumerate_; |
102 scoped_ptr<ScopedRequest> monitor_; | 103 scoped_ptr<ScopedRequest> monitor_; |
103 | 104 |
104 ppapi::host::ReplyMessageContext enumerate_devices_context_; | 105 ppapi::host::ReplyMessageContext enumerate_devices_context_; |
105 | 106 |
106 DISALLOW_COPY_AND_ASSIGN(PepperDeviceEnumerationHostHelper); | 107 DISALLOW_COPY_AND_ASSIGN(PepperDeviceEnumerationHostHelper); |
107 }; | 108 }; |
108 | 109 |
109 } // namespace content | 110 } // namespace content |
110 | 111 |
111 #endif // CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_HOST_HELPER_H_ | 112 #endif // CONTENT_RENDERER_PEPPER_PEPPER_DEVICE_ENUMERATION_HOST_HELPER_H_ |
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