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/*
* Copyright (C) 2008 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.statusbar.policy;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewParent;
import android.widget.TextView;
import com.android.systemui.R;
import java.util.Date;
public class DateView extends TextView {
private static final String TAG = "DateView";
private boolean mAttachedToWindow;
private boolean mWindowVisible;
private boolean mUpdating;
private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (Intent.ACTION_TIME_TICK.equals(action)
|| Intent.ACTION_TIME_CHANGED.equals(action)
|| Intent.ACTION_TIMEZONE_CHANGED.equals(action)) {
updateClock();
}
}
};
public DateView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mAttachedToWindow = true;
setUpdates();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mAttachedToWindow = false;
setUpdates();
}
@Override
protected void onWindowVisibilityChanged(int visibility) {
super.onWindowVisibilityChanged(visibility);
mWindowVisible = visibility == VISIBLE;
setUpdates();
}
@Override
protected void onVisibilityChanged(View changedView, int visibility) {
super.onVisibilityChanged(changedView, visibility);
setUpdates();
}
@Override
protected int getSuggestedMinimumWidth() {
// makes the large background bitmap not force us to full width
return 0;
}
protected void updateClock() {
final Context context = getContext();
Date now = new Date();
CharSequence dow = DateFormat.format("EEEE", now);
CharSequence date = DateFormat.getLongDateFormat(context).format(now);
setText(context.getString(R.string.status_bar_date_formatter, dow, date));
}
private boolean isVisible() {
View v = this;
while (true) {
if (v.getVisibility() != VISIBLE) {
return false;
}
final ViewParent parent = v.getParent();
if (parent instanceof View) {
v = (View)parent;
} else {
return true;
}
}
}
private void setUpdates() {
boolean update = mAttachedToWindow && mWindowVisible && isVisible();
if (update != mUpdating) {
mUpdating = update;
if (update) {
// Register for Intent broadcasts for the clock and battery
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_TIME_TICK);
filter.addAction(Intent.ACTION_TIME_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
mContext.registerReceiver(mIntentReceiver, filter, null, null);
updateClock();
} else {
mContext.unregisterReceiver(mIntentReceiver);
}
}
}
}
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