KeyguardStatusView.java revision 52414e31cd2e6388ce542f8c5819807c7b8ba7f6 
1/*
2 * Copyright (C) 2012 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.keyguard;
18
19import android.app.ActivityManager;
20import android.app.AlarmManager;
21import android.content.Context;
22import android.content.res.Configuration;
23import android.content.res.Resources;
24import android.os.UserHandle;
25import android.text.TextUtils;
26import android.text.format.DateFormat;
27import android.util.AttributeSet;
28import android.util.Log;
29import android.util.Slog;
30import android.util.TypedValue;
31import android.view.View;
32import android.view.ViewGroup;
33import android.widget.GridLayout;
34import android.widget.TextClock;
35import android.widget.TextView;
36
37import com.android.internal.util.ArrayUtils;
38import com.android.internal.widget.LockPatternUtils;
39import com.android.systemui.ChargingView;
40
41import java.util.Locale;
42
43public class KeyguardStatusView extends GridLayout {
44    private static final boolean DEBUG = KeyguardConstants.DEBUG;
45    private static final String TAG = "KeyguardStatusView";
46
47    private final LockPatternUtils mLockPatternUtils;
48    private final AlarmManager mAlarmManager;
49
50    private TextView mAlarmStatusView;
51    private TextClock mDateView;
52    private TextClock mClockView;
53    private TextView mOwnerInfo;
54    private ViewGroup mClockContainer;
55    private ChargingView mBatteryDoze;
56
57    private View[] mVisibleInDoze;
58    private boolean mPulsing;
59    private boolean mDark;
60
61    private KeyguardUpdateMonitorCallback mInfoCallback = new KeyguardUpdateMonitorCallback() {
62
63        @Override
64        public void onTimeChanged() {
65            refresh();
66        }
67
68        @Override
69        public void onKeyguardVisibilityChanged(boolean showing) {
70            if (showing) {
71                if (DEBUG) Slog.v(TAG, "refresh statusview showing:" + showing);
72                refresh();
73                updateOwnerInfo();
74            }
75        }
76
77        @Override
78        public void onStartedWakingUp() {
79            setEnableMarquee(true);
80        }
81
82        @Override
83        public void onFinishedGoingToSleep(int why) {
84            setEnableMarquee(false);
85        }
86
87        @Override
88        public void onUserSwitchComplete(int userId) {
89            refresh();
90            updateOwnerInfo();
91        }
92    };
93
94    public KeyguardStatusView(Context context) {
95        this(context, null, 0);
96    }
97
98    public KeyguardStatusView(Context context, AttributeSet attrs) {
99        this(context, attrs, 0);
100    }
101
102    public KeyguardStatusView(Context context, AttributeSet attrs, int defStyle) {
103        super(context, attrs, defStyle);
104        mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
105        mLockPatternUtils = new LockPatternUtils(getContext());
106    }
107
108    private void setEnableMarquee(boolean enabled) {
109        if (DEBUG) Log.v(TAG, (enabled ? "Enable" : "Disable") + " transport text marquee");
110        if (mAlarmStatusView != null) mAlarmStatusView.setSelected(enabled);
111        if (mOwnerInfo != null) mOwnerInfo.setSelected(enabled);
112    }
113
114    @Override
115    protected void onFinishInflate() {
116        super.onFinishInflate();
117        mClockContainer = findViewById(R.id.keyguard_clock_container);
118        mAlarmStatusView = findViewById(R.id.alarm_status);
119        mDateView = findViewById(R.id.date_view);
120        mClockView = findViewById(R.id.clock_view);
121        mDateView.setShowCurrentUserTime(true);
122        mClockView.setShowCurrentUserTime(true);
123        mClockView.setAccessibilityDelegate(new KeyguardClockAccessibilityDelegate(mContext));
124        mOwnerInfo = findViewById(R.id.owner_info);
125        mBatteryDoze = findViewById(R.id.battery_doze);
126        mVisibleInDoze = new View[]{mBatteryDoze, mClockView};
127
128        boolean shouldMarquee = KeyguardUpdateMonitor.getInstance(mContext).isDeviceInteractive();
129        setEnableMarquee(shouldMarquee);
130        refresh();
131        updateOwnerInfo();
132
133        // Disable elegant text height because our fancy colon makes the ymin value huge for no
134        // reason.
135        mClockView.setElegantTextHeight(false);
136    }
137
138    @Override
139    protected void onConfigurationChanged(Configuration newConfig) {
140        super.onConfigurationChanged(newConfig);
141        mClockView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
142                getResources().getDimensionPixelSize(R.dimen.widget_big_font_size));
143        // Some layouts like burmese have a different margin for the clock
144        MarginLayoutParams layoutParams = (MarginLayoutParams) mClockView.getLayoutParams();
145        layoutParams.bottomMargin = getResources().getDimensionPixelSize(
146                R.dimen.bottom_text_spacing_digital);
147        mClockView.setLayoutParams(layoutParams);
148        mDateView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
149                getResources().getDimensionPixelSize(R.dimen.widget_label_font_size));
150        mOwnerInfo.setTextSize(TypedValue.COMPLEX_UNIT_PX,
151                getResources().getDimensionPixelSize(R.dimen.widget_label_font_size));
152    }
153
154    public void refreshTime() {
155        mDateView.setFormat24Hour(Patterns.dateView);
156        mDateView.setFormat12Hour(Patterns.dateView);
157
158        mClockView.setFormat12Hour(Patterns.clockView12);
159        mClockView.setFormat24Hour(Patterns.clockView24);
160    }
161
162    private void refresh() {
163        AlarmManager.AlarmClockInfo nextAlarm =
164                mAlarmManager.getNextAlarmClock(UserHandle.USER_CURRENT);
165        Patterns.update(mContext, nextAlarm != null);
166
167        refreshTime();
168        refreshAlarmStatus(nextAlarm);
169    }
170
171    void refreshAlarmStatus(AlarmManager.AlarmClockInfo nextAlarm) {
172        if (nextAlarm != null) {
173            String alarm = formatNextAlarm(mContext, nextAlarm);
174            mAlarmStatusView.setText(alarm);
175            mAlarmStatusView.setContentDescription(
176                    getResources().getString(R.string.keyguard_accessibility_next_alarm, alarm));
177            mAlarmStatusView.setVisibility(View.VISIBLE);
178        } else {
179            mAlarmStatusView.setVisibility(View.GONE);
180        }
181    }
182
183    public int getClockBottom() {
184        return mClockView.getBottom() +
185                ((MarginLayoutParams) mClockView.getLayoutParams()).bottomMargin;
186    }
187
188    public static String formatNextAlarm(Context context, AlarmManager.AlarmClockInfo info) {
189        if (info == null) {
190            return "";
191        }
192        String skeleton = DateFormat.is24HourFormat(context, ActivityManager.getCurrentUser())
193                ? "EHm"
194                : "Ehma";
195        String pattern = DateFormat.getBestDateTimePattern(Locale.getDefault(), skeleton);
196        return DateFormat.format(pattern, info.getTriggerTime()).toString();
197    }
198
199    private void updateOwnerInfo() {
200        if (mOwnerInfo == null) return;
201        String ownerInfo = getOwnerInfo();
202        if (!TextUtils.isEmpty(ownerInfo)) {
203            mOwnerInfo.setVisibility(View.VISIBLE);
204            mOwnerInfo.setText(ownerInfo);
205        } else {
206            mOwnerInfo.setVisibility(View.GONE);
207        }
208    }
209
210    @Override
211    protected void onAttachedToWindow() {
212        super.onAttachedToWindow();
213        KeyguardUpdateMonitor.getInstance(mContext).registerCallback(mInfoCallback);
214    }
215
216    @Override
217    protected void onDetachedFromWindow() {
218        super.onDetachedFromWindow();
219        KeyguardUpdateMonitor.getInstance(mContext).removeCallback(mInfoCallback);
220    }
221
222    private String getOwnerInfo() {
223        String info = null;
224        if (mLockPatternUtils.isDeviceOwnerInfoEnabled()) {
225            // Use the device owner information set by device policy client via
226            // device policy manager.
227            info = mLockPatternUtils.getDeviceOwnerInfo();
228        } else {
229            // Use the current user owner information if enabled.
230            final boolean ownerInfoEnabled = mLockPatternUtils.isOwnerInfoEnabled(
231                    KeyguardUpdateMonitor.getCurrentUser());
232            if (ownerInfoEnabled) {
233                info = mLockPatternUtils.getOwnerInfo(KeyguardUpdateMonitor.getCurrentUser());
234            }
235        }
236        return info;
237    }
238
239    @Override
240    public boolean hasOverlappingRendering() {
241        return false;
242    }
243
244    // DateFormat.getBestDateTimePattern is extremely expensive, and refresh is called often.
245    // This is an optimization to ensure we only recompute the patterns when the inputs change.
246    private static final class Patterns {
247        static String dateView;
248        static String clockView12;
249        static String clockView24;
250        static String cacheKey;
251
252        static void update(Context context, boolean hasAlarm) {
253            final Locale locale = Locale.getDefault();
254            final Resources res = context.getResources();
255            final String dateViewSkel = res.getString(hasAlarm
256                    ? R.string.abbrev_wday_month_day_no_year_alarm
257                    : R.string.abbrev_wday_month_day_no_year);
258            final String clockView12Skel = res.getString(R.string.clock_12hr_format);
259            final String clockView24Skel = res.getString(R.string.clock_24hr_format);
260            final String key = locale.toString() + dateViewSkel + clockView12Skel + clockView24Skel;
261            if (key.equals(cacheKey)) return;
262
263            dateView = DateFormat.getBestDateTimePattern(locale, dateViewSkel);
264
265            clockView12 = DateFormat.getBestDateTimePattern(locale, clockView12Skel);
266            // CLDR insists on adding an AM/PM indicator even though it wasn't in the skeleton
267            // format.  The following code removes the AM/PM indicator if we didn't want it.
268            if (!clockView12Skel.contains("a")) {
269                clockView12 = clockView12.replaceAll("a", "").trim();
270            }
271
272            clockView24 = DateFormat.getBestDateTimePattern(locale, clockView24Skel);
273
274            // Use fancy colon.
275            clockView24 = clockView24.replace(':', '\uee01');
276            clockView12 = clockView12.replace(':', '\uee01');
277
278            cacheKey = key;
279        }
280    }
281
282    public void setDark(boolean dark) {
283        if (mDark == dark) {
284            return;
285        }
286        mDark = dark;
287
288        final int N = mClockContainer.getChildCount();
289        for (int i = 0; i < N; i++) {
290            View child = mClockContainer.getChildAt(i);
291            if (ArrayUtils.contains(mVisibleInDoze, child)) {
292                continue;
293            }
294            child.setAlpha(dark ? 0 : 1);
295        }
296        updateDozeVisibleViews();
297        mBatteryDoze.setDark(dark);
298    }
299
300    public void setPulsing(boolean pulsing) {
301        mPulsing = pulsing;
302        updateDozeVisibleViews();
303    }
304
305    private void updateDozeVisibleViews() {
306        for (View child : mVisibleInDoze) {
307            child.setAlpha(mDark && mPulsing ? 0.8f : 1);
308        }
309    }
310}
311