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