| // Copyright 2013 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 BASE_POWER_MONITOR_POWER_MONITOR_DEVICE_SOURCE_H_ |
| #define BASE_POWER_MONITOR_POWER_MONITOR_DEVICE_SOURCE_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/base_export.h" |
| #include "base/macros.h" |
| #include "base/power_monitor/power_monitor_source.h" |
| #include "base/power_monitor/power_observer.h" |
| #include "build/build_config.h" |
| |
| #if defined(OS_WIN) |
| #include <windows.h> |
| #endif // !OS_WIN |
| |
| #if defined(OS_MAC) |
| #include <IOKit/IOTypes.h> |
| |
| #include "base/mac/scoped_cftyperef.h" |
| #include "base/mac/scoped_ionotificationportref.h" |
| #include "base/power_monitor/thermal_state_observer_mac.h" |
| #endif |
| |
| #if defined(OS_IOS) |
| #include <objc/runtime.h> |
| #endif // OS_IOS |
| |
| namespace base { |
| |
| // A class used to monitor the power state change and notify the observers about |
| // the change event. |
| class BASE_EXPORT PowerMonitorDeviceSource : public PowerMonitorSource { |
| public: |
| PowerMonitorDeviceSource(); |
| ~PowerMonitorDeviceSource() override; |
| |
| #if defined(OS_CHROMEOS) |
| // On Chrome OS, Chrome receives power-related events from powerd, the system |
| // power daemon, via D-Bus signals received on the UI thread. base can't |
| // directly depend on that code, so this class instead exposes static methods |
| // so that events can be passed in. |
| static void SetPowerSource(bool on_battery); |
| static void HandleSystemSuspending(); |
| static void HandleSystemResumed(); |
| static void ThermalEventReceived(PowerObserver::DeviceThermalState state); |
| #endif |
| |
| private: |
| friend class PowerMonitorDeviceSourceTest; |
| |
| #if defined(OS_WIN) |
| // Represents a message-only window for power message handling on Windows. |
| // Only allow PowerMonitor to create it. |
| class PowerMessageWindow { |
| public: |
| PowerMessageWindow(); |
| ~PowerMessageWindow(); |
| |
| private: |
| static LRESULT CALLBACK WndProcThunk(HWND hwnd, |
| UINT message, |
| WPARAM wparam, |
| LPARAM lparam); |
| // Instance of the module containing the window procedure. |
| HMODULE instance_; |
| // A hidden message-only window. |
| HWND message_hwnd_; |
| }; |
| #endif // OS_WIN |
| |
| #if defined(OS_APPLE) |
| void PlatformInit(); |
| void PlatformDestroy(); |
| #endif // OS_APPLE |
| |
| #if defined(OS_MAC) |
| // Callback from IORegisterForSystemPower(). |refcon| is the |this| pointer. |
| static void SystemPowerEventCallback(void* refcon, |
| io_service_t service, |
| natural_t message_type, |
| void* message_argument); |
| #endif // OS_MAC |
| |
| // Platform-specific method to check whether the system is currently |
| // running on battery power. Returns true if running on batteries, |
| // false otherwise. |
| bool IsOnBatteryPowerImpl() override; |
| |
| #if defined(OS_ANDROID) |
| int GetRemainingBatteryCapacity() override; |
| #endif // defined(OS_ANDROID) |
| |
| #if defined(OS_MAC) |
| // PowerMonitorSource: |
| PowerObserver::DeviceThermalState GetCurrentThermalState() override; |
| |
| // Reference to the system IOPMrootDomain port. |
| io_connect_t power_manager_port_ = IO_OBJECT_NULL; |
| |
| // Notification port that delivers power (sleep/wake) notifications. |
| mac::ScopedIONotificationPortRef notification_port_; |
| |
| // Notifier reference for the |notification_port_|. |
| io_object_t notifier_ = IO_OBJECT_NULL; |
| |
| // Run loop source to observe power-source-change events. |
| ScopedCFTypeRef<CFRunLoopSourceRef> power_source_run_loop_source_; |
| |
| // Observer of thermal state events: critical temperature etc. |
| std::unique_ptr<ThermalStateObserverMac> thermal_state_observer_; |
| #endif |
| |
| #if defined(OS_IOS) |
| // Holds pointers to system event notification observers. |
| std::vector<id> notification_observers_; |
| #endif |
| |
| #if defined(OS_WIN) |
| PowerMessageWindow power_message_window_; |
| #endif |
| |
| DISALLOW_COPY_AND_ASSIGN(PowerMonitorDeviceSource); |
| }; |
| |
| } // namespace base |
| |
| #endif // BASE_POWER_MONITOR_POWER_MONITOR_DEVICE_SOURCE_H_ |