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// Copyright 2016 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 COMPONENTS_OFFLINE_PAGES_TASK_TASK_H_
#define COMPONENTS_OFFLINE_PAGES_TASK_TASK_H_
#include "base/callback.h"
namespace offline_pages {
// A task which may run asynchronous steps. Its primary purpose is to implement
// operations to be inserted into a |TaskQueue|, however, tasks can also be run
// outside of a |TaskQueue|.
class Task {
public:
Task();
virtual ~Task();
Task(const Task&) = delete;
Task& operator=(const Task&) = delete;
void Execute(base::OnceClosure complete_callback);
protected:
// Entry point to the task. Called by |Execute()| to perform the task.
// Must call |TaskComplete()| as the final step.
virtual void Run() = 0;
// Tasks must call |TaskComplete()| as their last step.
void TaskComplete();
base::OnceClosure task_completion_callback_;
bool completed_ = false;
bool started_ = false;
};
} // namespace offline_pages
#endif // COMPONENTS_OFFLINE_PAGES_TASK_TASK_H_
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