| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_ |
| #define COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_ |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/files/scoped_file.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/observer_list.h" |
| #include "base/values.h" |
| #include "components/arc/common/arc_bridge.mojom.h" |
| |
| namespace base { |
| class CommandLine; |
| } // namespace base |
| |
| namespace arc { |
| |
| class ArcBridgeBootstrap; |
| |
| // The Chrome-side service that handles ARC instances and ARC bridge creation. |
| // This service handles the lifetime of ARC instances and sets up the |
| // communication channel (the ARC bridge) used to send and receive messages. |
| class ArcBridgeService : public ArcBridgeHost { |
| public: |
| // The possible states of the bridge. In the normal flow, the state changes |
| // in the following sequence: |
| // |
| // STOPPED |
| // PrerequisitesChanged() -> |
| // CONNECTING |
| // OnConnectionEstablished() -> |
| // READY |
| // |
| // The ArcBridgeBootstrap state machine can be thought of being substates of |
| // ArcBridgeService's CONNECTING state. |
| // |
| // * |
| // StopInstance() -> |
| // STOPPING |
| // OnStopped() -> |
| // STOPPED |
| enum class State { |
| // ARC is not currently running. |
| STOPPED, |
| |
| // The request to connect has been sent. |
| CONNECTING, |
| |
| // The instance has started, and the bridge is fully established. |
| CONNECTED, |
| |
| // The ARC instance has finished initializing and is now ready for user |
| // interaction. |
| READY, |
| |
| // The ARC instance has started shutting down. |
| STOPPING, |
| }; |
| |
| // Notifies life cycle events of ArcBridgeService. |
| class Observer { |
| public: |
| // Called whenever the state of the bridge has changed. |
| virtual void OnStateChanged(State state) {} |
| |
| // Called whenever ARC's availability has changed for this system. |
| virtual void OnAvailableChanged(bool available) {} |
| |
| // Called whenever the ARC app interface state changes. |
| virtual void OnAppInstanceReady() {} |
| virtual void OnAppInstanceClosed() {} |
| |
| // Called whenever the ARC audio interface state changes. |
| virtual void OnAudioInstanceReady() {} |
| virtual void OnAudioInstanceClosed() {} |
| |
| // Called whenever the ARC auth interface state changes. |
| virtual void OnAuthInstanceReady() {} |
| virtual void OnAuthInstanceClosed() {} |
| |
| // Called whenever ARC Bluetooth instance is ready. |
| virtual void OnBluetoothInstanceReady() {} |
| virtual void OnBluetoothInstanceClosed() {} |
| |
| // Called whenever the ARC clipboard interface state changes. |
| virtual void OnClipboardInstanceReady() {} |
| virtual void OnClipboardInstanceClosed() {} |
| |
| // Called whenever the ARC crash collector interface state changes. |
| virtual void OnCrashCollectorInstanceReady() {} |
| virtual void OnCrashCollectorInstanceClosed() {} |
| |
| // Called whenever the ARC IME interface state changes. |
| virtual void OnImeInstanceReady() {} |
| virtual void OnImeInstanceClosed() {} |
| |
| // Called whenever the ARC input interface state changes. |
| virtual void OnInputInstanceReady() {} |
| virtual void OnInputInstanceClosed() {} |
| |
| // Called whenever the ARC intent helper interface state changes. |
| virtual void OnIntentHelperInstanceReady() {} |
| virtual void OnIntentHelperInstanceClosed() {} |
| |
| // Called whenever the ARC notification interface state changes. |
| virtual void OnNotificationsInstanceReady() {} |
| virtual void OnNotificationsInstanceClosed() {} |
| |
| // Called whenever the ARC net interface state changes. |
| virtual void OnNetInstanceReady() {} |
| virtual void OnNetInstanceClosed() {} |
| |
| // Called whenever the ARC policy interface state changes. |
| virtual void OnPolicyInstanceReady() {} |
| virtual void OnPolicyInstanceClosed() {} |
| |
| // Called whenever the ARC power interface state changes. |
| virtual void OnPowerInstanceReady() {} |
| virtual void OnPowerInstanceClosed() {} |
| |
| // Called whenever the ARC process interface state changes. |
| virtual void OnProcessInstanceReady() {} |
| virtual void OnProcessInstanceClosed() {} |
| |
| // Called whenever the ARC video interface state changes. |
| virtual void OnVideoInstanceReady() {} |
| virtual void OnVideoInstanceClosed() {} |
| |
| protected: |
| virtual ~Observer() {} |
| }; |
| |
| ~ArcBridgeService() override; |
| |
| // Gets the global instance of the ARC Bridge Service. This can only be |
| // called on the thread that this class was created on. |
| static ArcBridgeService* Get(); |
| |
| // Return true if ARC has been enabled through a commandline |
| // switch. |
| static bool GetEnabled(const base::CommandLine* command_line); |
| |
| // SetDetectedAvailability() should be called once CheckArcAvailability() on |
| // the session_manager is called. This can only be called on the thread that |
| // this class was created on. |
| virtual void SetDetectedAvailability(bool availability) = 0; |
| |
| // HandleStartup() should be called upon profile startup. This will only |
| // launch an instance if the instance service is available and it is enabled. |
| // This can only be called on the thread that this class was created on. |
| virtual void HandleStartup() = 0; |
| |
| // Shutdown() should be called when the browser is shutting down. This can |
| // only be called on the thread that this class was created on. |
| virtual void Shutdown() = 0; |
| |
| // Adds or removes observers. This can only be called on the thread that this |
| // class was created on. |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| // Gets the Mojo interface for all the instance services. This will return |
| // nullptr if that particular service is not ready yet. Use an Observer if |
| // you want to be notified when this is ready. This can only be called on the |
| // thread that this class was created on. |
| AppInstance* app_instance() { return app_ptr_.get(); } |
| AudioInstance* audio_instance() { return audio_ptr_.get(); } |
| AuthInstance* auth_instance() { return auth_ptr_.get(); } |
| BluetoothInstance* bluetooth_instance() { return bluetooth_ptr_.get(); } |
| ClipboardInstance* clipboard_instance() { return clipboard_ptr_.get(); } |
| CrashCollectorInstance* crash_collector_instance() { |
| return crash_collector_ptr_.get(); |
| } |
| ImeInstance* ime_instance() { return ime_ptr_.get(); } |
| InputInstance* input_instance() { return input_ptr_.get(); } |
| IntentHelperInstance* intent_helper_instance() { |
| return intent_helper_ptr_.get(); |
| } |
| NetInstance* net_instance() { return net_ptr_.get(); } |
| NotificationsInstance* notifications_instance() { |
| return notifications_ptr_.get(); |
| } |
| PolicyInstance* policy_instance() { return policy_ptr_.get(); } |
| PowerInstance* power_instance() { return power_ptr_.get(); } |
| ProcessInstance* process_instance() { return process_ptr_.get(); } |
| VideoInstance* video_instance() { return video_ptr_.get(); } |
| |
| int32_t app_version() const { return app_ptr_.version(); } |
| int32_t audio_version() const { return audio_ptr_.version(); } |
| int32_t bluetooth_version() const { return bluetooth_ptr_.version(); } |
| int32_t auth_version() const { return auth_ptr_.version(); } |
| int32_t clipboard_version() const { return clipboard_ptr_.version(); } |
| int32_t crash_collector_version() const { |
| return crash_collector_ptr_.version(); |
| } |
| int32_t ime_version() const { return ime_ptr_.version(); } |
| int32_t input_version() const { return input_ptr_.version(); } |
| int32_t intent_helper_version() const { return intent_helper_ptr_.version(); } |
| int32_t net_version() const { return net_ptr_.version(); } |
| int32_t notifications_version() const { return notifications_ptr_.version(); } |
| int32_t policy_version() const { return policy_ptr_.version(); } |
| int32_t power_version() const { return power_ptr_.version(); } |
| int32_t process_version() const { return process_ptr_.version(); } |
| int32_t video_version() const { return video_ptr_.version(); } |
| |
| // ArcHost: |
| void OnAppInstanceReady(AppInstancePtr app_ptr) override; |
| void OnAudioInstanceReady(AudioInstancePtr audio_ptr) override; |
| void OnAuthInstanceReady(AuthInstancePtr auth_ptr) override; |
| void OnBluetoothInstanceReady(BluetoothInstancePtr bluetooth_ptr) override; |
| void OnClipboardInstanceReady(ClipboardInstancePtr clipboard_ptr) override; |
| void OnCrashCollectorInstanceReady( |
| CrashCollectorInstancePtr crash_collector_ptr) override; |
| void OnImeInstanceReady(ImeInstancePtr ime_ptr) override; |
| void OnInputInstanceReady(InputInstancePtr input_ptr) override; |
| void OnIntentHelperInstanceReady( |
| IntentHelperInstancePtr intent_helper_ptr) override; |
| void OnNetInstanceReady(NetInstancePtr net_ptr) override; |
| void OnNotificationsInstanceReady( |
| NotificationsInstancePtr notifications_ptr) override; |
| void OnPolicyInstanceReady(PolicyInstancePtr policy_ptr) override; |
| void OnPowerInstanceReady(PowerInstancePtr power_ptr) override; |
| void OnProcessInstanceReady(ProcessInstancePtr process_ptr) override; |
| void OnVideoInstanceReady(VideoInstancePtr video_ptr) override; |
| |
| // Gets the current state of the bridge service. |
| State state() const { return state_; } |
| |
| // Gets if ARC is available in this system. |
| bool available() const { return available_; } |
| |
| protected: |
| ArcBridgeService(); |
| |
| // Changes the current state and notifies all observers. |
| void SetState(State state); |
| |
| // Changes the current availability and notifies all observers. |
| void SetAvailable(bool availability); |
| |
| base::ObserverList<Observer>& observer_list() { return observer_list_; } |
| |
| bool CalledOnValidThread(); |
| |
| // Closes all Mojo channels. |
| void CloseAllChannels(); |
| |
| private: |
| friend class ArcBridgeTest; |
| FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Basic); |
| FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Prerequisites); |
| FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, ShutdownMidStartup); |
| FRIEND_TEST_ALL_PREFIXES(ArcBridgeTest, Restart); |
| |
| // Called when one of the individual channels is closed. |
| void CloseAppChannel(); |
| void CloseAudioChannel(); |
| void CloseAuthChannel(); |
| void CloseBluetoothChannel(); |
| void CloseClipboardChannel(); |
| void CloseCrashCollectorChannel(); |
| void CloseImeChannel(); |
| void CloseInputChannel(); |
| void CloseIntentHelperChannel(); |
| void CloseNetChannel(); |
| void CloseNotificationsChannel(); |
| void ClosePolicyChannel(); |
| void ClosePowerChannel(); |
| void CloseProcessChannel(); |
| void CloseVideoChannel(); |
| |
| // Callbacks for QueryVersion. |
| void OnAppVersionReady(int32_t version); |
| void OnAudioVersionReady(int32_t version); |
| void OnAuthVersionReady(int32_t version); |
| void OnBluetoothVersionReady(int32_t version); |
| void OnClipboardVersionReady(int32_t version); |
| void OnCrashCollectorVersionReady(int32_t version); |
| void OnImeVersionReady(int32_t version); |
| void OnInputVersionReady(int32_t version); |
| void OnIntentHelperVersionReady(int32_t version); |
| void OnNetVersionReady(int32_t version); |
| void OnNotificationsVersionReady(int32_t version); |
| void OnPolicyVersionReady(int32_t version); |
| void OnPowerVersionReady(int32_t version); |
| void OnProcessVersionReady(int32_t version); |
| void OnVideoVersionReady(int32_t version); |
| |
| // Mojo interfaces. |
| AppInstancePtr app_ptr_; |
| AudioInstancePtr audio_ptr_; |
| AuthInstancePtr auth_ptr_; |
| BluetoothInstancePtr bluetooth_ptr_; |
| ClipboardInstancePtr clipboard_ptr_; |
| CrashCollectorInstancePtr crash_collector_ptr_; |
| ImeInstancePtr ime_ptr_; |
| InputInstancePtr input_ptr_; |
| IntentHelperInstancePtr intent_helper_ptr_; |
| NetInstancePtr net_ptr_; |
| NotificationsInstancePtr notifications_ptr_; |
| PolicyInstancePtr policy_ptr_; |
| PowerInstancePtr power_ptr_; |
| ProcessInstancePtr process_ptr_; |
| VideoInstancePtr video_ptr_; |
| |
| // Temporary Mojo interfaces. After a Mojo interface pointer has been |
| // received from the other endpoint, we still need to asynchronously query |
| // its version. While that is going on, we should still return nullptr on |
| // the xxx_instance() functions. |
| // To keep the xxx_instance() functions being trivial, store the instance |
| // pointer in a temporary variable to avoid losing its reference. |
| AppInstancePtr temporary_app_ptr_; |
| AudioInstancePtr temporary_audio_ptr_; |
| AuthInstancePtr temporary_auth_ptr_; |
| BluetoothInstancePtr temporary_bluetooth_ptr_; |
| ClipboardInstancePtr temporary_clipboard_ptr_; |
| CrashCollectorInstancePtr temporary_crash_collector_ptr_; |
| ImeInstancePtr temporary_ime_ptr_; |
| InputInstancePtr temporary_input_ptr_; |
| IntentHelperInstancePtr temporary_intent_helper_ptr_; |
| NetInstancePtr temporary_net_ptr_; |
| NotificationsInstancePtr temporary_notifications_ptr_; |
| PolicyInstancePtr temporary_policy_ptr_; |
| PowerInstancePtr temporary_power_ptr_; |
| ProcessInstancePtr temporary_process_ptr_; |
| VideoInstancePtr temporary_video_ptr_; |
| |
| base::ObserverList<Observer> observer_list_; |
| |
| base::ThreadChecker thread_checker_; |
| |
| // If the ARC instance service is available. |
| bool available_; |
| |
| // The current state of the bridge. |
| ArcBridgeService::State state_; |
| |
| // WeakPtrFactory to use callbacks. |
| base::WeakPtrFactory<ArcBridgeService> weak_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ArcBridgeService); |
| }; |
| |
| } // namespace arc |
| |
| #endif // COMPONENTS_ARC_ARC_BRIDGE_SERVICE_H_ |