1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.internal.widget;
18
19import android.view.View;
20
21/**
22 * An interface used by LockScreenWidgets to send messages to lock screen.
23 */
24public interface LockScreenWidgetCallback {
25    // Sends a message to lock screen requesting the given view be shown.  May be ignored, depending
26    // on lock screen state. View must be the top-level lock screen widget or it will be ignored.
27    public void requestShow(View self);
28
29    // Sends a message to lock screen requesting the view to be hidden.
30    public void requestHide(View self);
31
32    // Whether or not this view is currently visible on LockScreen
33    public boolean isVisible(View self);
34
35    // Sends a message to lock screen that user has interacted with widget. This should be used
36    // exclusively in response to user activity, i.e. user hits a button in the view.
37    public void userActivity(View self);
38
39}
40