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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 BASE_RUN_LOOP_H_ | 5 #ifndef BASE_RUN_LOOP_H_ |
| 6 #define BASE_RUN_LOOP_H_ | 6 #define BASE_RUN_LOOP_H_ |
| 7 | 7 |
| 8 #include "base/base_export.h" | 8 #include "base/base_export.h" |
| 9 #include "base/callback.h" | 9 #include "base/callback.h" |
| 10 #include "base/memory/weak_ptr.h" | 10 #include "base/memory/weak_ptr.h" |
| 11 #include "base/message_loop/message_loop.h" | 11 #include "base/message_loop/message_loop.h" |
| 12 | 12 |
| 13 namespace base { | 13 namespace base { |
| 14 #if defined(OS_ANDROID) | 14 #if defined(OS_ANDROID) |
| 15 class MessagePumpForUI; | 15 class MessagePumpForUI; |
| 16 #endif | 16 #endif |
| 17 | 17 |
| 18 #if defined(USE_AURA) |
| 19 class MessagePumpDispatcher; |
| 20 #endif |
| 21 |
| 18 #if defined(OS_IOS) | 22 #if defined(OS_IOS) |
| 19 class MessagePumpUIApplication; | 23 class MessagePumpUIApplication; |
| 20 #endif | 24 #endif |
| 21 | 25 |
| 22 // Helper class to Run a nested MessageLoop. Please do not use nested | 26 // Helper class to Run a nested MessageLoop. Please do not use nested |
| 23 // MessageLoops in production code! If you must, use this class instead of | 27 // MessageLoops in production code! If you must, use this class instead of |
| 24 // calling MessageLoop::Run/Quit directly. RunLoop::Run can only be called once | 28 // calling MessageLoop::Run/Quit directly. RunLoop::Run can only be called once |
| 25 // per RunLoop lifetime. Create a RunLoop on the stack and call Run/Quit to run | 29 // per RunLoop lifetime. Create a RunLoop on the stack and call Run/Quit to run |
| 26 // a nested MessageLoop. | 30 // a nested MessageLoop. |
| 27 class BASE_EXPORT RunLoop { | 31 class BASE_EXPORT RunLoop { |
| 28 public: | 32 public: |
| 29 RunLoop(); | 33 RunLoop(); |
| 30 #if defined(USE_AURA) | 34 #if defined(USE_AURA) |
| 31 explicit RunLoop(MessageLoop::Dispatcher* dispatcher); | 35 explicit RunLoop(MessagePumpDispatcher* dispatcher); |
| 32 #endif | 36 #endif |
| 33 ~RunLoop(); | 37 ~RunLoop(); |
| 34 | 38 |
| 35 #if defined(USE_AURA) | 39 #if defined(USE_AURA) |
| 36 void set_dispatcher(MessageLoop::Dispatcher* dispatcher) { | 40 void set_dispatcher(MessagePumpDispatcher* dispatcher) { |
| 37 dispatcher_ = dispatcher; | 41 dispatcher_ = dispatcher; |
| 38 } | 42 } |
| 39 #endif | 43 #endif |
| 40 | 44 |
| 41 // Run the current MessageLoop. This blocks until Quit is called. Before | 45 // Run the current MessageLoop. This blocks until Quit is called. Before |
| 42 // calling Run, be sure to grab an AsWeakPtr or the QuitClosure in order to | 46 // calling Run, be sure to grab an AsWeakPtr or the QuitClosure in order to |
| 43 // stop the MessageLoop asynchronously. MessageLoop::Quit and QuitNow will | 47 // stop the MessageLoop asynchronously. MessageLoop::Quit and QuitNow will |
| 44 // also trigger a return from Run, but those are deprecated. | 48 // also trigger a return from Run, but those are deprecated. |
| 45 void Run(); | 49 void Run(); |
| 46 | 50 |
| (...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 89 // Return false to abort the Run. | 93 // Return false to abort the Run. |
| 90 bool BeforeRun(); | 94 bool BeforeRun(); |
| 91 void AfterRun(); | 95 void AfterRun(); |
| 92 | 96 |
| 93 MessageLoop* loop_; | 97 MessageLoop* loop_; |
| 94 | 98 |
| 95 // Parent RunLoop or NULL if this is the top-most RunLoop. | 99 // Parent RunLoop or NULL if this is the top-most RunLoop. |
| 96 RunLoop* previous_run_loop_; | 100 RunLoop* previous_run_loop_; |
| 97 | 101 |
| 98 #if defined(USE_AURA) | 102 #if defined(USE_AURA) |
| 99 MessageLoop::Dispatcher* dispatcher_; | 103 MessagePumpDispatcher* dispatcher_; |
| 100 #endif | 104 #endif |
| 101 | 105 |
| 102 // Used to count how many nested Run() invocations are on the stack. | 106 // Used to count how many nested Run() invocations are on the stack. |
| 103 int run_depth_; | 107 int run_depth_; |
| 104 | 108 |
| 105 bool run_called_; | 109 bool run_called_; |
| 106 bool quit_called_; | 110 bool quit_called_; |
| 107 bool running_; | 111 bool running_; |
| 108 | 112 |
| 109 // Used to record that QuitWhenIdle() was called on the MessageLoop, meaning | 113 // Used to record that QuitWhenIdle() was called on the MessageLoop, meaning |
| 110 // that we should quit Run once it becomes idle. | 114 // that we should quit Run once it becomes idle. |
| 111 bool quit_when_idle_received_; | 115 bool quit_when_idle_received_; |
| 112 | 116 |
| 113 // WeakPtrFactory for QuitClosure safety. | 117 // WeakPtrFactory for QuitClosure safety. |
| 114 base::WeakPtrFactory<RunLoop> weak_factory_; | 118 base::WeakPtrFactory<RunLoop> weak_factory_; |
| 115 | 119 |
| 116 DISALLOW_COPY_AND_ASSIGN(RunLoop); | 120 DISALLOW_COPY_AND_ASSIGN(RunLoop); |
| 117 }; | 121 }; |
| 118 | 122 |
| 119 } // namespace base | 123 } // namespace base |
| 120 | 124 |
| 121 #endif // BASE_RUN_LOOP_H_ | 125 #endif // BASE_RUN_LOOP_H_ |
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