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.qs;
18
19import android.animation.ValueAnimator;
20import android.content.Context;
21import android.graphics.drawable.Drawable;
22import android.view.View;
23import android.widget.FrameLayout;
24import android.widget.ImageView;
25
26import com.android.systemui.R;
27import com.android.systemui.plugins.qs.QSTile;
28import com.android.systemui.plugins.qs.QSTile.SignalState;
29import com.android.systemui.qs.tileimpl.QSIconViewImpl;
30
31/** View that represents a custom quick settings tile for displaying signal info (wifi/cell). **/
32public class SignalTileView extends QSIconViewImpl {
33    private static final long DEFAULT_DURATION = new ValueAnimator().getDuration();
34    private static final long SHORT_DURATION = DEFAULT_DURATION / 3;
35
36    protected FrameLayout mIconFrame;
37    protected ImageView mSignal;
38    private ImageView mOverlay;
39    private ImageView mIn;
40    private ImageView mOut;
41
42    private int mWideOverlayIconStartPadding;
43
44    public SignalTileView(Context context) {
45        super(context);
46
47        mIn = addTrafficView(R.drawable.ic_qs_signal_in);
48        mOut = addTrafficView(R.drawable.ic_qs_signal_out);
49
50        mWideOverlayIconStartPadding = context.getResources().getDimensionPixelSize(
51                R.dimen.wide_type_icon_start_padding_qs);
52    }
53
54    private ImageView addTrafficView(int icon) {
55        final ImageView traffic = new ImageView(mContext);
56        traffic.setImageResource(icon);
57        traffic.setAlpha(0f);
58        addView(traffic);
59        return traffic;
60    }
61
62    @Override
63    protected View createIcon() {
64        mIconFrame = new FrameLayout(mContext);
65        mSignal = new ImageView(mContext);
66        mIconFrame.addView(mSignal);
67        mOverlay = new ImageView(mContext);
68        mIconFrame.addView(mOverlay, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
69        return mIconFrame;
70    }
71
72    @Override
73    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
74        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
75        int hs = MeasureSpec.makeMeasureSpec(mIconFrame.getMeasuredHeight(), MeasureSpec.EXACTLY);
76        int ws = MeasureSpec.makeMeasureSpec(mIconFrame.getMeasuredHeight(), MeasureSpec.AT_MOST);
77        mIn.measure(ws, hs);
78        mOut.measure(ws, hs);
79    }
80
81    @Override
82    protected void onLayout(boolean changed, int l, int t, int r, int b) {
83        super.onLayout(changed, l, t, r, b);
84        layoutIndicator(mIn);
85        layoutIndicator(mOut);
86    }
87
88    @Override
89    protected int getIconMeasureMode() {
90        return MeasureSpec.AT_MOST;
91    }
92
93    private void layoutIndicator(View indicator) {
94        boolean isRtl = getLayoutDirection() == LAYOUT_DIRECTION_RTL;
95        int left, right;
96        if (isRtl) {
97            right = mIconFrame.getLeft();
98            left = right - indicator.getMeasuredWidth();
99        } else {
100            left = mIconFrame.getRight();
101            right = left + indicator.getMeasuredWidth();
102        }
103        indicator.layout(
104                left,
105                mIconFrame.getBottom() - indicator.getMeasuredHeight(),
106                right,
107                mIconFrame.getBottom());
108    }
109
110    @Override
111    public void setIcon(QSTile.State state) {
112        final SignalState s = (SignalState) state;
113        setIcon(mSignal, s);
114
115        if (s.overlayIconId > 0) {
116            mOverlay.setVisibility(VISIBLE);
117            mOverlay.setImageResource(s.overlayIconId);
118        } else {
119            mOverlay.setVisibility(GONE);
120        }
121        if (s.overlayIconId > 0 && s.isOverlayIconWide) {
122            mSignal.setPaddingRelative(mWideOverlayIconStartPadding, 0, 0, 0);
123        } else {
124            mSignal.setPaddingRelative(0, 0, 0, 0);
125        }
126        final boolean shown = isShown();
127        setVisibility(mIn, shown, s.activityIn);
128        setVisibility(mOut, shown, s.activityOut);
129    }
130
131    private void setVisibility(View view, boolean shown, boolean visible) {
132        final float newAlpha = shown && visible ? 1 : 0;
133        if (view.getAlpha() == newAlpha) return;
134        if (shown) {
135            view.animate()
136                .setDuration(visible ? SHORT_DURATION : DEFAULT_DURATION)
137                .alpha(newAlpha)
138                .start();
139        } else {
140            view.setAlpha(newAlpha);
141        }
142    }
143}
144