NotificationViewWrapper.java revision 4ffd63611a0d516c9988b37e9c06e6f8390c2a2f 
1/*
2 * Copyright (C) 2014 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.systemui.statusbar;
18
19import android.content.Context;
20import android.service.notification.StatusBarNotification;
21import android.view.NotificationHeaderView;
22import android.view.View;
23
24import com.android.systemui.statusbar.notification.TransformState;
25
26/**
27 * Wraps the actual notification content view; used to implement behaviors which are different for
28 * the individual templates and custom views.
29 */
30public abstract class NotificationViewWrapper implements TransformableView {
31
32    protected final View mView;
33
34    public static NotificationViewWrapper wrap(Context ctx, View v) {
35        if (v.getId() == com.android.internal.R.id.status_bar_latest_event_content) {
36            return new NotificationTemplateViewWrapper(ctx, v);
37        } else if (v instanceof NotificationHeaderView) {
38            return new NotificationHeaderViewWrapper(ctx, v);
39        } else {
40            return new NotificationCustomViewWrapper(v);
41        }
42    }
43
44    protected NotificationViewWrapper(View view) {
45        mView = view;
46    }
47
48    /**
49     * In dark mode, we draw as little as possible, assuming a black background.
50     *
51     * @param dark whether we should display ourselves in dark mode
52     * @param fade whether to animate the transition if the mode changes
53     * @param delay if fading, the delay of the animation
54     */
55    public abstract void setDark(boolean dark, boolean fade, long delay);
56
57    /**
58     * Notifies this wrapper that the content of the view might have changed.
59     * @param notification
60     */
61    public void notifyContentUpdated(StatusBarNotification notification) {};
62
63    /**
64     * @return true if this template might need to be clipped with a round rect to make it look
65     *         nice, false otherwise
66     */
67    public boolean needsRoundRectClipping() {
68        return false;
69    }
70
71    /**
72     * Update the appearance of the expand button.
73     *
74     * @param expandable should this view be expandable
75     * @param onClickListener the listener to invoke when the expand affordance is clicked on
76     */
77    public void updateExpandability(boolean expandable, View.OnClickListener onClickListener) {}
78
79    /**
80     * @return the notification header if it exists
81     */
82    public NotificationHeaderView getNotificationHeader() {
83        return null;
84    }
85
86    @Override
87    public TransformState getCurrentState(int fadingView) {
88        return null;
89    }
90
91    @Override
92    public void transformTo(TransformableView notification, Runnable endRunnable) {
93        // By default we are fading out completely
94        CrossFadeHelper.fadeOut(mView, endRunnable);
95    }
96
97    @Override
98    public void transformFrom(TransformableView notification) {
99        // By default we are fading in completely
100        CrossFadeHelper.fadeIn(mView);
101    }
102
103    @Override
104    public void setVisible(boolean visible) {
105        mView.setVisibility(visible ? View.VISIBLE : View.INVISIBLE);
106    }
107}
108