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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 #include "content/browser/renderer_host/pepper/pepper_gamepad_host.h" | 5 #include "content/browser/renderer_host/pepper/pepper_gamepad_host.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "content/browser/gamepad/gamepad_service.h" | 8 #include "content/browser/gamepad/gamepad_service.h" |
9 #include "content/public/browser/browser_ppapi_host.h" | 9 #include "content/public/browser/browser_ppapi_host.h" |
10 #include "ppapi/c/pp_errors.h" | 10 #include "ppapi/c/pp_errors.h" |
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32 PP_Resource resource) | 32 PP_Resource resource) |
33 : ResourceHost(host->GetPpapiHost(), instance, resource), | 33 : ResourceHost(host->GetPpapiHost(), instance, resource), |
34 browser_ppapi_host_(host), | 34 browser_ppapi_host_(host), |
35 gamepad_service_(gamepad_service), | 35 gamepad_service_(gamepad_service), |
36 is_started_(false), | 36 is_started_(false), |
37 weak_factory_(this) { | 37 weak_factory_(this) { |
38 } | 38 } |
39 | 39 |
40 PepperGamepadHost::~PepperGamepadHost() { | 40 PepperGamepadHost::~PepperGamepadHost() { |
41 if (is_started_) | 41 if (is_started_) |
42 gamepad_service_->RemoveConsumer(); | 42 gamepad_service_->RemoveConsumer(this); |
43 } | 43 } |
44 | 44 |
45 int32_t PepperGamepadHost::OnResourceMessageReceived( | 45 int32_t PepperGamepadHost::OnResourceMessageReceived( |
46 const IPC::Message& msg, | 46 const IPC::Message& msg, |
47 ppapi::host::HostMessageContext* context) { | 47 ppapi::host::HostMessageContext* context) { |
48 IPC_BEGIN_MESSAGE_MAP(PepperGamepadHost, msg) | 48 IPC_BEGIN_MESSAGE_MAP(PepperGamepadHost, msg) |
49 PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Gamepad_RequestMemory, | 49 PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Gamepad_RequestMemory, |
50 OnRequestMemory) | 50 OnRequestMemory) |
51 IPC_END_MESSAGE_MAP() | 51 IPC_END_MESSAGE_MAP() |
52 return PP_ERROR_FAILED; | 52 return PP_ERROR_FAILED; |
53 } | 53 } |
54 | 54 |
55 int32_t PepperGamepadHost::OnRequestMemory( | 55 int32_t PepperGamepadHost::OnRequestMemory( |
56 ppapi::host::HostMessageContext* context) { | 56 ppapi::host::HostMessageContext* context) { |
57 if (is_started_) | 57 if (is_started_) |
58 return PP_ERROR_FAILED; | 58 return PP_ERROR_FAILED; |
59 | 59 |
60 gamepad_service_->AddConsumer(); | 60 gamepad_service_->AddConsumer(this); |
61 is_started_ = true; | 61 is_started_ = true; |
62 | 62 |
63 // Don't send the shared memory back until the user has interacted with the | 63 // Don't send the shared memory back until the user has interacted with the |
64 // gamepad. This is to prevent fingerprinting and matches what the web | 64 // gamepad. This is to prevent fingerprinting and matches what the web |
65 // platform does. | 65 // platform does. |
66 gamepad_service_->RegisterForUserGesture( | 66 gamepad_service_->RegisterForUserGesture( |
67 base::Bind(&PepperGamepadHost::GotUserGesture, | 67 base::Bind(&PepperGamepadHost::GotUserGesture, |
68 weak_factory_.GetWeakPtr(), | 68 weak_factory_.GetWeakPtr(), |
69 context->MakeReplyMessageContext())); | 69 context->MakeReplyMessageContext())); |
70 return PP_OK_COMPLETIONPENDING; | 70 return PP_OK_COMPLETIONPENDING; |
71 } | 71 } |
72 | 72 |
73 void PepperGamepadHost::GotUserGesture( | 73 void PepperGamepadHost::GotUserGesture( |
74 const ppapi::host::ReplyMessageContext& context) { | 74 const ppapi::host::ReplyMessageContext& context) { |
75 base::SharedMemoryHandle handle = | 75 base::SharedMemoryHandle handle = |
76 gamepad_service_->GetSharedMemoryHandleForProcess( | 76 gamepad_service_->GetSharedMemoryHandleForProcess( |
77 browser_ppapi_host_->GetPluginProcessHandle()); | 77 browser_ppapi_host_->GetPluginProcessHandle()); |
78 | 78 |
79 context.params.AppendHandle(ppapi::proxy::SerializedHandle( | 79 context.params.AppendHandle(ppapi::proxy::SerializedHandle( |
80 handle, sizeof(ppapi::ContentGamepadHardwareBuffer))); | 80 handle, sizeof(ppapi::ContentGamepadHardwareBuffer))); |
81 host()->SendReply(context, PpapiPluginMsg_Gamepad_SendMemory()); | 81 host()->SendReply(context, PpapiPluginMsg_Gamepad_SendMemory()); |
82 } | 82 } |
83 | 83 |
84 } // namespace content | 84 } // namespace content |
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