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PowerMonitor registered OS-level callbacks (HWND UserData and WTS/suspend notifications on Windows, shutdown handler and lock-screen observer on macOS) but never cleaned them up in its destructor. The JS layer also only held the native object in a closure-local variable, allowing GC to reclaim it while those registrations still referenced freed memory. Retain the native PowerMonitor at module level in power-monitor.ts so it cannot be garbage-collected. Add DestroyPlatformSpecificMonitors() to properly tear down OS registrations on destruction: on Windows, unregister WTS and suspend notifications, clear GWLP_USERDATA, and destroy the HWND; on macOS, remove the emitter from the global MacLockMonitor and reset the Browser shutdown handler. Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com> Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>
97 lines
3.0 KiB
C++
97 lines
3.0 KiB
C++
// Copyright (c) 2013 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
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#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
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#include "base/power_monitor/power_observer.h"
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#include "shell/browser/event_emitter_mixin.h"
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#include "shell/common/gin_helper/pinnable.h"
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#include "shell/common/gin_helper/wrappable.h"
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#include "ui/base/idle/idle.h"
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#if BUILDFLAG(IS_LINUX)
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#include "shell/browser/lib/power_observer_linux.h"
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#endif
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namespace electron::api {
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class PowerMonitor final : public gin_helper::DeprecatedWrappable<PowerMonitor>,
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public gin_helper::EventEmitterMixin<PowerMonitor>,
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public gin_helper::Pinnable<PowerMonitor>,
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private base::PowerStateObserver,
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private base::PowerSuspendObserver,
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private base::PowerThermalObserver {
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public:
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static v8::Local<v8::Value> Create(v8::Isolate* isolate);
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// gin_helper::Wrappable
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static gin::DeprecatedWrapperInfo kWrapperInfo;
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gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
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v8::Isolate* isolate) override;
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const char* GetTypeName() override;
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// disable copy
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PowerMonitor(const PowerMonitor&) = delete;
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PowerMonitor& operator=(const PowerMonitor&) = delete;
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private:
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explicit PowerMonitor(v8::Isolate* isolate);
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~PowerMonitor() override;
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#if BUILDFLAG(IS_LINUX)
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void SetListeningForShutdown(bool);
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#endif
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// Called by native callers.
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bool ShouldShutdown();
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#if BUILDFLAG(IS_MAC) || BUILDFLAG(IS_WIN)
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void InitPlatformSpecificMonitors();
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void DestroyPlatformSpecificMonitors();
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#endif
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// base::PowerStateObserver implementations:
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void OnBatteryPowerStatusChange(
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BatteryPowerStatus battery_power_status) override;
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// base::PowerSuspendObserver implementations:
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void OnSuspend() override;
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void OnResume() override;
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// base::PowerThermalObserver
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void OnThermalStateChange(DeviceThermalState new_state) override;
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void OnSpeedLimitChange(int speed_limit) override;
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#if BUILDFLAG(IS_WIN)
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// Static callback invoked when a message comes in to our messaging window.
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static LRESULT CALLBACK WndProcStatic(HWND hwnd,
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UINT message,
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WPARAM wparam,
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LPARAM lparam);
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LRESULT CALLBACK WndProc(HWND hwnd,
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UINT message,
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WPARAM wparam,
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LPARAM lparam);
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// The window class of |window_|.
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ATOM atom_;
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// The handle of the module that contains the window procedure of |window_|.
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HMODULE instance_;
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// The window used for processing events.
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HWND window_;
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#endif
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#if BUILDFLAG(IS_LINUX)
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PowerObserverLinux power_observer_linux_{this};
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#endif
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};
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} // namespace electron::api
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#endif // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
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