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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/task_manager/providers/task_provider.h"
namespace task_manager {
TaskProvider::TaskProvider()
: observer_(nullptr) {
}
TaskProvider::~TaskProvider() = default;
void TaskProvider::SetObserver(TaskProviderObserver* observer) {
DCHECK(observer);
DCHECK(!observer_);
observer_ = observer;
StartUpdating();
}
void TaskProvider::ClearObserver() {
DCHECK(observer_);
observer_ = nullptr;
StopUpdating();
}
bool TaskProvider::IsUpdating() const {
return observer_ != nullptr;
}
void TaskProvider::NotifyObserverTaskAdded(Task* task) const {
DCHECK(observer_);
observer_->TaskAdded(task);
}
void TaskProvider::NotifyObserverTaskRemoved(Task* task) const {
DCHECK(observer_);
observer_->TaskRemoved(task);
}
void TaskProvider::NotifyObserverTaskUnresponsive(Task* task) const {
DCHECK(observer_);
observer_->TaskUnresponsive(task);
}
void TaskProvider::UpdateTaskProcessInfoAndNotifyObserver(
Task* existing_task,
base::ProcessHandle new_process_handle,
base::ProcessId new_process_id) const {
DCHECK(observer_);
existing_task->UpdateProcessInfo(new_process_handle, new_process_id,
observer_);
}
#if BUILDFLAG(IS_CHROMEOS)
void TaskProvider::NotifyObserverTaskIdsListToBeInvalidated() const {
DCHECK(observer_);
observer_->TaskIdsListToBeInvalidated();
}
#endif // BUILDFLAG(IS_CHROMEOS)
} // namespace task_manager
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