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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_ANDROID_APPLICATION_STATUS_LISTENER_H_ | 5 #ifndef BASE_ANDROID_APPLICATION_STATUS_LISTENER_H_ |
6 #define BASE_ANDROID_APPLICATION_STATUS_LISTENER_H_ | 6 #define BASE_ANDROID_APPLICATION_STATUS_LISTENER_H_ |
7 | 7 |
8 #include <jni.h> | 8 #include <jni.h> |
9 | 9 |
10 #include "base/android/jni_android.h" | 10 #include "base/android/jni_android.h" |
11 #include "base/base_export.h" | 11 #include "base/base_export.h" |
12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
13 #include "base/memory/ref_counted.h" | 13 #include "base/memory/ref_counted.h" |
14 #include "base/memory/singleton.h" | 14 #include "base/memory/singleton.h" |
15 #include "base/observer_list_threadsafe.h" | 15 #include "base/observer_list_threadsafe.h" |
16 | 16 |
17 namespace base { | 17 namespace base { |
18 namespace android { | 18 namespace android { |
19 | 19 |
20 // Define application state values like APPLICATION_STATE_VISIBLE in a | 20 // Define application state values like APPLICATION_STATE_VISIBLE in a |
21 // way that ensures they're always the same than their Java counterpart. | 21 // way that ensures they're always the same than their Java counterpart. |
22 // | 22 // |
23 // Note that these states represent the most visible Activity state. | 23 // Note that these states represent the most visible Activity state. |
24 // If there are activities with states paused and stopped, only | 24 // If there are activities with states paused and stopped, only |
25 // HAS_PAUSED_ACTIVITIES should be returned. | 25 // HAS_PAUSED_ACTIVITIES should be returned. |
26 // | 26 // |
27 // A Java counterpart will be generated for this enum. | 27 // A Java counterpart will be generated for this enum. |
28 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.base | 28 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.base |
29 enum ApplicationState { | 29 enum ApplicationState { |
30 APPLICATION_STATE_UNKNOWN = 0, | |
31 APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = 1, | 30 APPLICATION_STATE_HAS_RUNNING_ACTIVITIES = 1, |
32 APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = 2, | 31 APPLICATION_STATE_HAS_PAUSED_ACTIVITIES = 2, |
33 APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = 3, | 32 APPLICATION_STATE_HAS_STOPPED_ACTIVITIES = 3, |
34 APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = 4 | 33 APPLICATION_STATE_HAS_DESTROYED_ACTIVITIES = 4 |
35 }; | 34 }; |
36 | 35 |
37 // A native helper class to listen to state changes of the Android | 36 // A native helper class to listen to state changes of the Android |
38 // Application. This mirrors org.chromium.base.ApplicationStatus. | 37 // Application. This mirrors org.chromium.base.ApplicationStatus. |
39 // any thread. | 38 // any thread. |
40 // | 39 // |
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67 explicit ApplicationStatusListener( | 66 explicit ApplicationStatusListener( |
68 const ApplicationStateChangeCallback& callback); | 67 const ApplicationStateChangeCallback& callback); |
69 ~ApplicationStatusListener(); | 68 ~ApplicationStatusListener(); |
70 | 69 |
71 // Internal use: must be public to be called from base_jni_registrar.cc | 70 // Internal use: must be public to be called from base_jni_registrar.cc |
72 static bool RegisterBindings(JNIEnv* env); | 71 static bool RegisterBindings(JNIEnv* env); |
73 | 72 |
74 // Internal use only: must be public to be called from JNI and unit tests. | 73 // Internal use only: must be public to be called from JNI and unit tests. |
75 static void NotifyApplicationStateChange(ApplicationState state); | 74 static void NotifyApplicationStateChange(ApplicationState state); |
76 | 75 |
77 // Expose jni call for ApplicationStatus.getStateForApplication. | |
78 static ApplicationState GetState(); | |
79 | |
80 private: | 76 private: |
81 void Notify(ApplicationState state); | 77 void Notify(ApplicationState state); |
82 | 78 |
83 ApplicationStateChangeCallback callback_; | 79 ApplicationStateChangeCallback callback_; |
84 | 80 |
85 DISALLOW_COPY_AND_ASSIGN(ApplicationStatusListener); | 81 DISALLOW_COPY_AND_ASSIGN(ApplicationStatusListener); |
86 }; | 82 }; |
87 | 83 |
88 } // namespace android | 84 } // namespace android |
89 } // namespace base | 85 } // namespace base |
90 | 86 |
91 #endif // BASE_ANDROID_APPLICATION_STATUS_LISTENER_H_ | 87 #endif // BASE_ANDROID_APPLICATION_STATUS_LISTENER_H_ |
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