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62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_MESSAGE_LOOP_MESSAGE_PUMP_ANDROID_H_
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#define BASE_MESSAGE_LOOP_MESSAGE_PUMP_ANDROID_H_
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#include <jni.h>
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#include <memory>
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#include "base/android/scoped_java_ref.h"
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#include "base/base_export.h"
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#include "base/compiler_specific.h"
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#include "base/macros.h"
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#include "base/message_loop/message_pump.h"
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#include "base/time/time.h"
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namespace base {
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class RunLoop;
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// This class implements a MessagePump needed for TYPE_UI MessageLoops on
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// OS_ANDROID platform.
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class BASE_EXPORT MessagePumpForUI : public MessagePump {
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public:
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MessagePumpForUI();
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~MessagePumpForUI() override;
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void DoIdleWork(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
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void DoRunLoopOnce(JNIEnv* env,
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const base::android::JavaParamRef<jobject>& obj,
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jboolean delayed);
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void Run(Delegate* delegate) override;
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void Quit() override;
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void ScheduleWork() override;
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void ScheduleDelayedWork(const TimeTicks& delayed_work_time) override;
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virtual void Start(Delegate* delegate);
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// We call Abort when there is a pending JNI exception, meaning that the
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// current thread will crash when we return to Java.
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// We can't call any JNI-methods before returning to Java as we would then
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// cause a native crash (instead of the original Java crash).
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void Abort() { should_abort_ = true; }
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bool ShouldAbort() const { return should_abort_; }
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private:
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std::unique_ptr<RunLoop> run_loop_;
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base::android::ScopedJavaGlobalRef<jobject> system_message_handler_obj_;
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bool should_abort_ = false;
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bool quit_ = false;
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Delegate* delegate_ = nullptr;
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base::TimeTicks delayed_scheduled_time_;
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DISALLOW_COPY_AND_ASSIGN(MessagePumpForUI);
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};
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} // namespace base
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#endif // BASE_MESSAGE_LOOP_MESSAGE_PUMP_ANDROID_H_
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