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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_IDLE_IDLE_DETECTOR_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_IDLE_IDLE_DETECTOR_H_
#include "base/memory/scoped_refptr.h"
#include "base/task/single_thread_task_runner.h"
#include "third_party/blink/public/mojom/idle/idle_manager.mojom-blink.h"
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_idle_options.h"
#include "third_party/blink/renderer/core/dom/abort_signal.h"
#include "third_party/blink/renderer/core/dom/events/event_target.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/event_modules.h"
#include "third_party/blink/renderer/modules/event_target_modules.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_receiver.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/timer.h"
namespace blink {
class ExceptionState;
class V8PermissionState;
class V8ScreenIdleState;
class V8UserIdleState;
class MODULES_EXPORT IdleDetector final
: public EventTarget,
public ActiveScriptWrappable<IdleDetector>,
public ExecutionContextLifecycleObserver,
public mojom::blink::IdleMonitor {
DEFINE_WRAPPERTYPEINFO();
public:
static IdleDetector* Create(ScriptState*);
explicit IdleDetector(ExecutionContext*);
~IdleDetector() override;
IdleDetector(const IdleDetector&) = delete;
IdleDetector& operator=(const IdleDetector&) = delete;
// EventTarget implementation.
const AtomicString& InterfaceName() const override;
ExecutionContext* GetExecutionContext() const override;
// ExecutionContextLifecycleObserver implementation.
void ContextDestroyed() override;
// ActiveScriptWrappable implementation.
bool HasPendingActivity() const final;
// IdleDetector IDL interface.
std::optional<V8UserIdleState> userState() const;
std::optional<V8ScreenIdleState> screenState() const;
static ScriptPromise<V8PermissionState> requestPermission(ScriptState*,
ExceptionState&);
ScriptPromise<IDLUndefined> start(ScriptState*,
const IdleOptions*,
ExceptionState&);
DEFINE_ATTRIBUTE_EVENT_LISTENER(change, kChange)
void Trace(Visitor*) const override;
void SetTaskRunnerForTesting(
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
const base::TickClock* tick_clock);
private:
class StartAbortAlgorithm;
// mojom::blink::IdleMonitor implementation. Invoked on a state change, and
// causes an event to be dispatched.
void Update(mojom::blink::IdleStatePtr state,
bool is_overridden_by_devtools) override;
void DispatchUserIdleEvent(TimerBase*);
void Abort();
void OnMonitorDisconnected();
void OnAddMonitor(ScriptPromiseResolver<IDLUndefined>*,
mojom::blink::IdleManagerError,
mojom::blink::IdleStatePtr);
void Clear();
// State currently visible to script.
bool has_state_ = false;
bool screen_locked_ = false;
bool user_idle_ = false;
// Task runner for change events. Overridden for testing.
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
// If script has specified a threshold longer than the default this timer is
// used to delay the update until the user has been idle for the specified
// threshold.
HeapTaskRunnerTimer<IdleDetector> timer_;
base::TimeDelta threshold_ = base::Seconds(60);
Member<AbortSignal> signal_;
// The handle is valid from the time start() is called until the detector is
// stopped, if an AbortSignal is passed to start().
Member<AbortSignal::AlgorithmHandle> abort_handle_;
Member<ScriptPromiseResolver<IDLUndefined>> resolver_;
// Holds a pipe which the service uses to notify this object
// when the idle state has changed.
HeapMojoReceiver<mojom::blink::IdleMonitor, IdleDetector> receiver_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_IDLE_IDLE_DETECTOR_H_
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