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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.navigationbar;
import android.content.Context;
import android.os.SystemClock;
import android.util.Slog;
import android.widget.Toast;
import com.android.systemui.R;
import com.android.systemui.SysUIToast;
/**
* Helper to manage showing/hiding a image to notify them that they are entering or exiting screen
* pinning mode. All exposed methods should be called from a handler thread.
*/
public class ScreenPinningNotify {
private static final String TAG = "ScreenPinningNotify";
private static final long SHOW_TOAST_MINIMUM_INTERVAL = 1000;
private final Context mContext;
private Toast mLastToast;
private long mLastShowToastTime;
public ScreenPinningNotify(Context context) {
mContext = context;
}
/** Show "Screen pinned" toast. */
public void showPinningStartToast() {
makeAllUserToastAndShow(R.string.screen_pinning_start);
}
/** Show "Screen unpinned" toast. */
public void showPinningExitToast() {
makeAllUserToastAndShow(R.string.screen_pinning_exit);
}
/** Show a toast that describes the gesture the user should use to escape pinned mode. */
public void showEscapeToast(boolean isGestureNavEnabled, boolean isRecentsButtonVisible) {
long showToastTime = SystemClock.elapsedRealtime();
if ((showToastTime - mLastShowToastTime) < SHOW_TOAST_MINIMUM_INTERVAL) {
Slog.i(TAG, "Ignore toast since it is requested in very short interval.");
return;
}
if (mLastToast != null) {
mLastToast.cancel();
}
mLastToast = makeAllUserToastAndShow(isGestureNavEnabled
? R.string.screen_pinning_toast_gesture_nav
: isRecentsButtonVisible
? R.string.screen_pinning_toast
: R.string.screen_pinning_toast_recents_invisible);
mLastShowToastTime = showToastTime;
}
private Toast makeAllUserToastAndShow(int resId) {
Toast toast = SysUIToast.makeText(mContext, resId, Toast.LENGTH_LONG);
toast.show();
return toast;
}
}
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