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// Copyright 2015 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.
#include "ash/metrics/desktop_task_switch_metric_recorder.h"
#include "ash/metrics/user_metrics_recorder.h"
#include "ash/shell.h"
#include "ash/wm/window_util.h"
#include "ui/wm/public/activation_client.h"
namespace ash {
DesktopTaskSwitchMetricRecorder::DesktopTaskSwitchMetricRecorder()
: last_active_task_window_(nullptr) {
Shell::GetInstance()->activation_client()->AddObserver(this);
}
DesktopTaskSwitchMetricRecorder::~DesktopTaskSwitchMetricRecorder() {
Shell::GetInstance()->activation_client()->RemoveObserver(this);
}
void DesktopTaskSwitchMetricRecorder::OnWindowActivated(
aura::client::ActivationChangeObserver::ActivationReason reason,
aura::Window* gained_active,
aura::Window* lost_active) {
if (gained_active && wm::IsWindowUserPositionable(gained_active)) {
if (last_active_task_window_ != gained_active &&
reason == aura::client::ActivationChangeObserver::ActivationReason::
INPUT_EVENT) {
Shell::GetInstance()->metrics()->RecordUserMetricsAction(
UMA_DESKTOP_SWITCH_TASK);
}
last_active_task_window_ = gained_active;
}
}
} // namespace ash
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