packages/SystemUI/src/com/android/systemui/volume/ZenModePanel.java - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2014 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.volume;

 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
 import android.provider.Settings;
 import android.service.notification.Condition;
 import android.service.notification.ZenModeConfig;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.ContextThemeWrapper;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CompoundButton;
 import android.widget.CompoundButton.OnCheckedChangeListener;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RadioButton;
 import android.widget.TextView;

 import com.android.systemui.R;
 import com.android.systemui.statusbar.policy.ZenModeController;

 import java.util.Arrays;
 import java.util.Objects;

 public class ZenModePanel extends LinearLayout {
     private static final boolean DEBUG = false;

     private static final int[] MINUTE_BUCKETS = new int[] { 15, 30, 45, 60, 120, 180, 240, 480 };
     private static final int MIN_BUCKET_MINUTES = MINUTE_BUCKETS[0];
     private static final int MAX_BUCKET_MINUTES = MINUTE_BUCKETS[MINUTE_BUCKETS.length - 1];
     private static final int DEFAULT_BUCKET_INDEX = Arrays.binarySearch(MINUTE_BUCKETS, 60);

     private static final int SECONDS_MS = 1000;
     private static final int MINUTES_MS = 60 * SECONDS_MS;

     public static final Intent ZEN_SETTINGS = new Intent(Settings.ACTION_ZEN_MODE_SETTINGS);

     private final Context mContext;
     private final LayoutInflater mInflater;
     private final H mHandler = new H();
     private final Favorites mFavorites;

     private char mLogTag = '?';
     private String mTag;
     private LinearLayout mConditions;
     private Callback mCallback;
     private ZenModeController mController;
     private boolean mRequestingConditions;
     private Uri mExitConditionId;
     private int mBucketIndex = -1;
     private boolean mShowing;

     public ZenModePanel(Context context, AttributeSet attrs) {
         super(context, attrs);
         mContext = context;
         mFavorites = new Favorites();
         mInflater = LayoutInflater.from(new ContextThemeWrapper(context, R.style.QSWhiteTheme));
         updateTag();
         if (DEBUG) Log.d(mTag, "new ZenModePanel");
     }

     private void updateTag() {
         mTag = "ZenModePanel/" + mLogTag + "/" + Integer.toHexString(System.identityHashCode(this));
     }

     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
         mConditions = (LinearLayout) findViewById(android.R.id.content);
         findViewById(android.R.id.button2).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 fireMoreSettings();
             }
         });
     }

     @Override
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         if (DEBUG) Log.d(mTag, "onAttachedToWindow");
         final ViewGroup p = (ViewGroup) getParent();
         updateShowing(p != null && p.getVisibility() == VISIBLE);
     }

     @Override
     protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
         if (DEBUG) Log.d(mTag, "onDetachedFromWindow");
         updateShowing(false);
     }

     @Override
     public void setVisibility(int visibility) {
         super.setVisibility(visibility);
         final boolean vis = visibility == VISIBLE;
         updateShowing(isAttachedToWindow() && vis);
     }

     private void updateShowing(boolean showing) {
         if (showing == mShowing) return;
         mShowing = showing;
         if (DEBUG) Log.d(mTag, "mShowing=" + mShowing);
         if (mController != null) {
             setRequestingConditions(mShowing);
         }
     }

     /** Start or stop requesting relevant zen mode exit conditions */
     private void setRequestingConditions(boolean requesting) {
         if (mRequestingConditions == requesting) return;
         if (DEBUG) Log.d(mTag, "setRequestingConditions " + requesting);
         mRequestingConditions = requesting;
         if (mController != null) {
             mController.requestConditions(mRequestingConditions);
         }
         if (mRequestingConditions) {
             Condition timeCondition = parseExistingTimeCondition(mExitConditionId);
             if (timeCondition != null) {
                 mBucketIndex = -1;
             } else {
                 mBucketIndex = DEFAULT_BUCKET_INDEX;
                 timeCondition = newTimeCondition(MINUTE_BUCKETS[mBucketIndex]);
             }
             if (DEBUG) Log.d(mTag, "Initial bucket index: " + mBucketIndex);
             bind(timeCondition, mConditions.getChildAt(0));
             handleUpdateConditions(new Condition[0]);
         } else {
             mConditions.removeAllViews();
         }
     }

     public void init(ZenModeController controller, char logTag) {
         mController = controller;
         mLogTag = logTag;
         updateTag();
         mExitConditionId = mController.getExitConditionId();
         if (DEBUG) Log.d(mTag, "init mExitConditionId=" + mExitConditionId);
         mConditions.removeAllViews();
         mController.addCallback(mZenCallback);
         if (mShowing) {
             setRequestingConditions(true);
         }
     }

     public void setCallback(Callback callback) {
         mCallback = callback;
     }

     private Condition parseExistingTimeCondition(Uri conditionId) {
         final long time = ZenModeConfig.tryParseCountdownConditionId(conditionId);
         if (time == 0) return null;
         final long span = time - System.currentTimeMillis();
         if (span <= 0 || span > MAX_BUCKET_MINUTES * MINUTES_MS) return null;
         return timeCondition(time, Math.round(span / (float)MINUTES_MS));
     }

     private Condition newTimeCondition(int minutesFromNow) {
         final long now = System.currentTimeMillis();
         return timeCondition(now + minutesFromNow * MINUTES_MS, minutesFromNow);
     }

     private Condition timeCondition(long time, int minutes) {
         final int num = minutes < 60 ? minutes : Math.round(minutes / 60f);
         final int resId = minutes < 60
                 ? R.plurals.zen_mode_duration_minutes
                 : R.plurals.zen_mode_duration_hours;
         final String caption = mContext.getResources().getQuantityString(resId, num, num);
         final Uri id = ZenModeConfig.toCountdownConditionId(time);
         return new Condition(id, caption, "", "", 0, Condition.STATE_TRUE,
                 Condition.FLAG_RELEVANT_NOW);
     }

     private void handleUpdateConditions(Condition[] conditions) {
         final int newCount = conditions == null ? 0 : conditions.length;
         for (int i = mConditions.getChildCount() - 1; i > newCount; i--) {
             mConditions.removeViewAt(i);
         }
         for (int i = 0; i < newCount; i++) {
             bind(conditions[i], mConditions.getChildAt(i + 1));
         }
         bind(null, mConditions.getChildAt(newCount + 1));
         checkForDefault();
     }

     private ConditionTag getConditionTagAt(int index) {
         return (ConditionTag) mConditions.getChildAt(index).getTag();
     }

     private void checkForDefault() {
         // are we left without anything selected?  if so, set a default
         for (int i = 0; i < mConditions.getChildCount(); i++) {
             if (getConditionTagAt(i).rb.isChecked()) {
                 return;
             }
         }
         if (DEBUG) Log.d(mTag, "Selecting a default");
         final int favoriteIndex = mFavorites.getMinuteIndex();
         if (favoriteIndex == -1) {
             getConditionTagAt(mConditions.getChildCount() - 1).rb.setChecked(true);
         } else {
             final Condition c = newTimeCondition(MINUTE_BUCKETS[favoriteIndex]);
             mBucketIndex = favoriteIndex;
             bind(c, mConditions.getChildAt(0));
             getConditionTagAt(0).rb.setChecked(true);
         }
     }

     private void handleExitConditionChanged(Uri exitCondition) {
         mExitConditionId = exitCondition;
         if (DEBUG) Log.d(mTag, "handleExitConditionChanged " + mExitConditionId);
         final int N = mConditions.getChildCount();
         for (int i = 0; i < N; i++) {
             final ConditionTag tag = getConditionTagAt(i);
             tag.rb.setChecked(Objects.equals(tag.conditionId, exitCondition));
         }
     }

     private void bind(final Condition condition, View convertView) {
         final boolean enabled = condition == null || condition.state == Condition.STATE_TRUE;
         final View row;
         if (convertView == null) {
             row = mInflater.inflate(R.layout.zen_mode_condition, this, false);
             if (DEBUG) Log.d(mTag, "Adding new condition view for: " + condition);
             mConditions.addView(row);
         } else {
             row = convertView;
         }
         final ConditionTag tag =
                 row.getTag() != null ? (ConditionTag) row.getTag() : new ConditionTag();
         row.setTag(tag);
         if (tag.rb == null) {
             tag.rb = (RadioButton) row.findViewById(android.R.id.checkbox);
         }
         tag.conditionId = condition != null ? condition.id : null;
         tag.rb.setEnabled(enabled);
         tag.rb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 if (mShowing && isChecked) {
                     if (DEBUG) Log.d(mTag, "onCheckedChanged " + tag.conditionId);
                     final int N = mConditions.getChildCount();
                     for (int i = 0; i < N; i++) {
                         ConditionTag childTag = getConditionTagAt(i);
                         if (childTag == tag) continue;
                         childTag.rb.setChecked(false);
                     }
                     select(tag.conditionId);
                     fireInteraction();
                 }
             }
         });
         final TextView title = (TextView) row.findViewById(android.R.id.title);
         if (condition == null) {
             title.setText(R.string.zen_mode_forever);
         } else {
             title.setText(condition.summary);
         }
         title.setEnabled(enabled);
         title.setAlpha(enabled ? 1 : .5f);
         final ImageView button1 = (ImageView) row.findViewById(android.R.id.button1);
         button1.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
                 onClickTimeButton(row, tag, false /*down*/);
             }
         });

         final ImageView button2 = (ImageView) row.findViewById(android.R.id.button2);
         button2.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
                 onClickTimeButton(row, tag, true /*up*/);
             }
         });
         title.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
                 tag.rb.setChecked(true);
                 fireInteraction();
             }
         });

         final long time = ZenModeConfig.tryParseCountdownConditionId(tag.conditionId);
         if (time > 0) {
             if (mBucketIndex > -1) {
                 button1.setEnabled(mBucketIndex > 0);
                 button2.setEnabled(mBucketIndex < MINUTE_BUCKETS.length - 1);
             } else {
                 final long span = time - System.currentTimeMillis();
                 button1.setEnabled(span > MIN_BUCKET_MINUTES * MINUTES_MS);
                 final Condition maxCondition = newTimeCondition(MAX_BUCKET_MINUTES);
                 button2.setEnabled(!Objects.equals(condition.summary, maxCondition.summary));
             }

             button1.setAlpha(button1.isEnabled() ? 1f : .5f);
             button2.setAlpha(button2.isEnabled() ? 1f : .5f);
         } else {
             button1.setVisibility(View.GONE);
             button2.setVisibility(View.GONE);
         }
     }

     private void onClickTimeButton(View row, ConditionTag tag, boolean up) {
         Condition newCondition = null;
         final int N = MINUTE_BUCKETS.length;
         if (mBucketIndex == -1) {
             // not on a known index, search for the next or prev bucket by time
             final long time = ZenModeConfig.tryParseCountdownConditionId(tag.conditionId);
             final long now = System.currentTimeMillis();
             for (int i = 0; i < N; i++) {
                 int j = up ? i : N - 1 - i;
                 final int bucketMinutes = MINUTE_BUCKETS[j];
                 final long bucketTime = now + bucketMinutes * MINUTES_MS;
                 if (up && bucketTime > time || !up && bucketTime < time) {
                     mBucketIndex = j;
                     newCondition = timeCondition(bucketTime, bucketMinutes);
                     break;
                 }
             }
             if (newCondition == null) {
                 mBucketIndex = DEFAULT_BUCKET_INDEX;
                 newCondition = newTimeCondition(MINUTE_BUCKETS[mBucketIndex]);
             }
         } else {
             // on a known index, simply increment or decrement
             mBucketIndex = Math.max(0, Math.min(N - 1, mBucketIndex + (up ? 1 : -1)));
             newCondition = newTimeCondition(MINUTE_BUCKETS[mBucketIndex]);
         }
         bind(newCondition, row);
         tag.rb.setChecked(true);
         select(newCondition.id);
         fireInteraction();
     }

     private void select(Uri conditionId) {
         if (DEBUG) Log.d(mTag, "select " + conditionId);
         if (mController != null) {
             mController.setExitConditionId(conditionId);
         }
         mExitConditionId = conditionId;
         if (conditionId == null) {
             mFavorites.setMinuteIndex(-1);
         } else if (ZenModeConfig.isValidCountdownConditionId(conditionId) && mBucketIndex != -1) {
             mFavorites.setMinuteIndex(mBucketIndex);
         }
     }

     private void fireMoreSettings() {
         if (mCallback != null) {
             mCallback.onMoreSettings();
         }
     }

     private void fireInteraction() {
         if (mCallback != null) {
             mCallback.onInteraction();
         }
     }

     private final ZenModeController.Callback mZenCallback = new ZenModeController.Callback() {
         @Override
         public void onConditionsChanged(Condition[] conditions) {
             mHandler.obtainMessage(H.UPDATE_CONDITIONS, conditions).sendToTarget();
         }

         @Override
         public void onExitConditionChanged(Uri exitConditionId) {
             mHandler.obtainMessage(H.EXIT_CONDITION_CHANGED, exitConditionId).sendToTarget();
         }
     };

     private final class H extends Handler {
         private static final int UPDATE_CONDITIONS = 1;
         private static final int EXIT_CONDITION_CHANGED = 2;

         private H() {
             super(Looper.getMainLooper());
         }

         @Override
         public void handleMessage(Message msg) {
             if (msg.what == UPDATE_CONDITIONS) {
                 handleUpdateConditions((Condition[])msg.obj);
             } else if (msg.what == EXIT_CONDITION_CHANGED) {
                 handleExitConditionChanged((Uri)msg.obj);
             }
         }
     }

     public interface Callback {
         void onMoreSettings();
         void onInteraction();
     }

     // used as the view tag on condition rows
     private static class ConditionTag {
         RadioButton rb;
         Uri conditionId;
     }

     private final class Favorites implements OnSharedPreferenceChangeListener {
         private static final String KEY_MINUTE_INDEX = "minuteIndex";

         private int mMinuteIndex;

         private Favorites() {
             prefs().registerOnSharedPreferenceChangeListener(this);
             updateMinuteIndex();
         }

         public int getMinuteIndex() {
             return mMinuteIndex;
         }

         public void setMinuteIndex(int minuteIndex) {
             minuteIndex = clamp(minuteIndex);
             if (minuteIndex == mMinuteIndex) return;
             mMinuteIndex = clamp(minuteIndex);
             if (DEBUG) Log.d(mTag, "Setting favorite minute index: " + mMinuteIndex);
             prefs().edit().putInt(KEY_MINUTE_INDEX, mMinuteIndex).apply();
         }

         @Override
         public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
             updateMinuteIndex();
         }

         private SharedPreferences prefs() {
             return mContext.getSharedPreferences(ZenModePanel.class.getSimpleName(), 0);
         }

         private void updateMinuteIndex() {
             mMinuteIndex = clamp(prefs().getInt(KEY_MINUTE_INDEX, DEFAULT_BUCKET_INDEX));
             if (DEBUG) Log.d(mTag, "Favorite minute index: " + mMinuteIndex);
         }

         private int clamp(int index) {
             return Math.max(-1, Math.min(MINUTE_BUCKETS.length - 1, index));
         }
     }
 }
	/*
	* Copyright (C) 2014 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.volume;

	import android.content.Context;
	import android.content.Intent;
	import android.content.SharedPreferences;
	import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
	import android.net.Uri;
	import android.os.Handler;
	import android.os.Looper;
	import android.os.Message;
	import android.provider.Settings;
	import android.service.notification.Condition;
	import android.service.notification.ZenModeConfig;
	import android.util.AttributeSet;
	import android.util.Log;
	import android.view.ContextThemeWrapper;
	import android.view.LayoutInflater;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.CompoundButton;
	import android.widget.CompoundButton.OnCheckedChangeListener;
	import android.widget.ImageView;
	import android.widget.LinearLayout;
	import android.widget.RadioButton;
	import android.widget.TextView;

	import com.android.systemui.R;
	import com.android.systemui.statusbar.policy.ZenModeController;

	import java.util.Arrays;
	import java.util.Objects;

	public class ZenModePanel extends LinearLayout {
	private static final boolean DEBUG = false;

	private static final int[] MINUTE_BUCKETS = new int[] { 15, 30, 45, 60, 120, 180, 240, 480 };
	private static final int MIN_BUCKET_MINUTES = MINUTE_BUCKETS[0];
	private static final int MAX_BUCKET_MINUTES = MINUTE_BUCKETS[MINUTE_BUCKETS.length - 1];
	private static final int DEFAULT_BUCKET_INDEX = Arrays.binarySearch(MINUTE_BUCKETS, 60);

	private static final int SECONDS_MS = 1000;
	private static final int MINUTES_MS = 60 * SECONDS_MS;

	public static final Intent ZEN_SETTINGS = new Intent(Settings.ACTION_ZEN_MODE_SETTINGS);

	private final Context mContext;
	private final LayoutInflater mInflater;
	private final H mHandler = new H();
	private final Favorites mFavorites;

	private char mLogTag = '?';
	private String mTag;
	private LinearLayout mConditions;
	private Callback mCallback;
	private ZenModeController mController;
	private boolean mRequestingConditions;
	private Uri mExitConditionId;
	private int mBucketIndex = -1;
	private boolean mShowing;

	public ZenModePanel(Context context, AttributeSet attrs) {
	super(context, attrs);
	mContext = context;
	mFavorites = new Favorites();
	mInflater = LayoutInflater.from(new ContextThemeWrapper(context, R.style.QSWhiteTheme));
	updateTag();
	if (DEBUG) Log.d(mTag, "new ZenModePanel");
	}

	private void updateTag() {
	mTag = "ZenModePanel/" + mLogTag + "/" + Integer.toHexString(System.identityHashCode(this));
	}

	@Override
	protected void onFinishInflate() {
	super.onFinishInflate();
	mConditions = (LinearLayout) findViewById(android.R.id.content);
	findViewById(android.R.id.button2).setOnClickListener(new View.OnClickListener() {
	@Override
	public void onClick(View v) {
	fireMoreSettings();
	}
	});
	}

	@Override
	protected void onAttachedToWindow() {
	super.onAttachedToWindow();
	if (DEBUG) Log.d(mTag, "onAttachedToWindow");
	final ViewGroup p = (ViewGroup) getParent();
	updateShowing(p != null && p.getVisibility() == VISIBLE);
	}

	@Override
	protected void onDetachedFromWindow() {
	super.onDetachedFromWindow();
	if (DEBUG) Log.d(mTag, "onDetachedFromWindow");
	updateShowing(false);
	}

	@Override
	public void setVisibility(int visibility) {
	super.setVisibility(visibility);
	final boolean vis = visibility == VISIBLE;
	updateShowing(isAttachedToWindow() && vis);
	}

	private void updateShowing(boolean showing) {
	if (showing == mShowing) return;
	mShowing = showing;
	if (DEBUG) Log.d(mTag, "mShowing=" + mShowing);
	if (mController != null) {
	setRequestingConditions(mShowing);
	}
	}

	/** Start or stop requesting relevant zen mode exit conditions */
	private void setRequestingConditions(boolean requesting) {
	if (mRequestingConditions == requesting) return;
	if (DEBUG) Log.d(mTag, "setRequestingConditions " + requesting);
	mRequestingConditions = requesting;
	if (mController != null) {
	mController.requestConditions(mRequestingConditions);
	}
	if (mRequestingConditions) {
	Condition timeCondition = parseExistingTimeCondition(mExitConditionId);
	if (timeCondition != null) {
	mBucketIndex = -1;
	} else {
	mBucketIndex = DEFAULT_BUCKET_INDEX;
	timeCondition = newTimeCondition(MINUTE_BUCKETS[mBucketIndex]);
	}
	if (DEBUG) Log.d(mTag, "Initial bucket index: " + mBucketIndex);
	bind(timeCondition, mConditions.getChildAt(0));
	handleUpdateConditions(new Condition[0]);
	} else {
	mConditions.removeAllViews();
	}
	}

	public void init(ZenModeController controller, char logTag) {
	mController = controller;
	mLogTag = logTag;
	updateTag();
	mExitConditionId = mController.getExitConditionId();
	if (DEBUG) Log.d(mTag, "init mExitConditionId=" + mExitConditionId);
	mConditions.removeAllViews();
	mController.addCallback(mZenCallback);
	if (mShowing) {
	setRequestingConditions(true);
	}
	}

	public void setCallback(Callback callback) {
	mCallback = callback;
	}

	private Condition parseExistingTimeCondition(Uri conditionId) {
	final long time = ZenModeConfig.tryParseCountdownConditionId(conditionId);
	if (time == 0) return null;
	final long span = time - System.currentTimeMillis();
	if (span <= 0 \|\| span > MAX_BUCKET_MINUTES * MINUTES_MS) return null;
	return timeCondition(time, Math.round(span / (float)MINUTES_MS));
	}

	private Condition newTimeCondition(int minutesFromNow) {
	final long now = System.currentTimeMillis();
	return timeCondition(now + minutesFromNow * MINUTES_MS, minutesFromNow);
	}

	private Condition timeCondition(long time, int minutes) {
	final int num = minutes < 60 ? minutes : Math.round(minutes / 60f);
	final int resId = minutes < 60
	? R.plurals.zen_mode_duration_minutes
	: R.plurals.zen_mode_duration_hours;
	final String caption = mContext.getResources().getQuantityString(resId, num, num);
	final Uri id = ZenModeConfig.toCountdownConditionId(time);
	return new Condition(id, caption, "", "", 0, Condition.STATE_TRUE,
	Condition.FLAG_RELEVANT_NOW);
	}

	private void handleUpdateConditions(Condition[] conditions) {
	final int newCount = conditions == null ? 0 : conditions.length;
	for (int i = mConditions.getChildCount() - 1; i > newCount; i--) {
	mConditions.removeViewAt(i);
	}
	for (int i = 0; i < newCount; i++) {
	bind(conditions[i], mConditions.getChildAt(i + 1));
	}
	bind(null, mConditions.getChildAt(newCount + 1));
	checkForDefault();
	}

	private ConditionTag getConditionTagAt(int index) {
	return (ConditionTag) mConditions.getChildAt(index).getTag();
	}

	private void checkForDefault() {
	// are we left without anything selected? if so, set a default
	for (int i = 0; i < mConditions.getChildCount(); i++) {
	if (getConditionTagAt(i).rb.isChecked()) {
	return;
	}
	}
	if (DEBUG) Log.d(mTag, "Selecting a default");
	final int favoriteIndex = mFavorites.getMinuteIndex();
	if (favoriteIndex == -1) {
	getConditionTagAt(mConditions.getChildCount() - 1).rb.setChecked(true);
	} else {
	final Condition c = newTimeCondition(MINUTE_BUCKETS[favoriteIndex]);
	mBucketIndex = favoriteIndex;
	bind(c, mConditions.getChildAt(0));
	getConditionTagAt(0).rb.setChecked(true);
	}
	}

	private void handleExitConditionChanged(Uri exitCondition) {
	mExitConditionId = exitCondition;
	if (DEBUG) Log.d(mTag, "handleExitConditionChanged " + mExitConditionId);
	final int N = mConditions.getChildCount();
	for (int i = 0; i < N; i++) {
	final ConditionTag tag = getConditionTagAt(i);
	tag.rb.setChecked(Objects.equals(tag.conditionId, exitCondition));
	}
	}

	private void bind(final Condition condition, View convertView) {
	final boolean enabled = condition == null \|\| condition.state == Condition.STATE_TRUE;
	final View row;
	if (convertView == null) {
	row = mInflater.inflate(R.layout.zen_mode_condition, this, false);
	if (DEBUG) Log.d(mTag, "Adding new condition view for: " + condition);
	mConditions.addView(row);
	} else {
	row = convertView;
	}
	final ConditionTag tag =
	row.getTag() != null ? (ConditionTag) row.getTag() : new ConditionTag();
	row.setTag(tag);
	if (tag.rb == null) {
	tag.rb = (RadioButton) row.findViewById(android.R.id.checkbox);
	}
	tag.conditionId = condition != null ? condition.id : null;
	tag.rb.setEnabled(enabled);
	tag.rb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	if (mShowing && isChecked) {
	if (DEBUG) Log.d(mTag, "onCheckedChanged " + tag.conditionId);
	final int N = mConditions.getChildCount();
	for (int i = 0; i < N; i++) {
	ConditionTag childTag = getConditionTagAt(i);
	if (childTag == tag) continue;
	childTag.rb.setChecked(false);
	}
	select(tag.conditionId);
	fireInteraction();
	}
	}
	});
	final TextView title = (TextView) row.findViewById(android.R.id.title);
	if (condition == null) {
	title.setText(R.string.zen_mode_forever);
	} else {
	title.setText(condition.summary);
	}
	title.setEnabled(enabled);
	title.setAlpha(enabled ? 1 : .5f);
	final ImageView button1 = (ImageView) row.findViewById(android.R.id.button1);
	button1.setOnClickListener(new OnClickListener() {
	@Override
	public void onClick(View v) {
	onClickTimeButton(row, tag, false /down/);
	}
	});

	final ImageView button2 = (ImageView) row.findViewById(android.R.id.button2);
	button2.setOnClickListener(new OnClickListener() {
	@Override
	public void onClick(View v) {
	onClickTimeButton(row, tag, true /up/);
	}
	});
	title.setOnClickListener(new OnClickListener() {
	@Override
	public void onClick(View v) {
	tag.rb.setChecked(true);
	fireInteraction();
	}
	});

	final long time = ZenModeConfig.tryParseCountdownConditionId(tag.conditionId);
	if (time > 0) {
	if (mBucketIndex > -1) {
	button1.setEnabled(mBucketIndex > 0);
	button2.setEnabled(mBucketIndex < MINUTE_BUCKETS.length - 1);
	} else {
	final long span = time - System.currentTimeMillis();
	button1.setEnabled(span > MIN_BUCKET_MINUTES * MINUTES_MS);
	final Condition maxCondition = newTimeCondition(MAX_BUCKET_MINUTES);
	button2.setEnabled(!Objects.equals(condition.summary, maxCondition.summary));
	}

	button1.setAlpha(button1.isEnabled() ? 1f : .5f);
	button2.setAlpha(button2.isEnabled() ? 1f : .5f);
	} else {
	button1.setVisibility(View.GONE);
	button2.setVisibility(View.GONE);
	}
	}

	private void onClickTimeButton(View row, ConditionTag tag, boolean up) {
	Condition newCondition = null;
	final int N = MINUTE_BUCKETS.length;
	if (mBucketIndex == -1) {
	// not on a known index, search for the next or prev bucket by time
	final long time = ZenModeConfig.tryParseCountdownConditionId(tag.conditionId);
	final long now = System.currentTimeMillis();
	for (int i = 0; i < N; i++) {
	int j = up ? i : N - 1 - i;
	final int bucketMinutes = MINUTE_BUCKETS[j];
	final long bucketTime = now + bucketMinutes * MINUTES_MS;
	if (up && bucketTime > time \|\| !up && bucketTime < time) {
	mBucketIndex = j;
	newCondition = timeCondition(bucketTime, bucketMinutes);
	break;
	}
	}
	if (newCondition == null) {
	mBucketIndex = DEFAULT_BUCKET_INDEX;
	newCondition = newTimeCondition(MINUTE_BUCKETS[mBucketIndex]);
	}
	} else {
	// on a known index, simply increment or decrement
	mBucketIndex = Math.max(0, Math.min(N - 1, mBucketIndex + (up ? 1 : -1)));
	newCondition = newTimeCondition(MINUTE_BUCKETS[mBucketIndex]);
	}
	bind(newCondition, row);
	tag.rb.setChecked(true);
	select(newCondition.id);
	fireInteraction();
	}

	private void select(Uri conditionId) {
	if (DEBUG) Log.d(mTag, "select " + conditionId);
	if (mController != null) {
	mController.setExitConditionId(conditionId);
	}
	mExitConditionId = conditionId;
	if (conditionId == null) {
	mFavorites.setMinuteIndex(-1);
	} else if (ZenModeConfig.isValidCountdownConditionId(conditionId) && mBucketIndex != -1) {
	mFavorites.setMinuteIndex(mBucketIndex);
	}
	}

	private void fireMoreSettings() {
	if (mCallback != null) {
	mCallback.onMoreSettings();
	}
	}

	private void fireInteraction() {
	if (mCallback != null) {
	mCallback.onInteraction();
	}
	}

	private final ZenModeController.Callback mZenCallback = new ZenModeController.Callback() {
	@Override
	public void onConditionsChanged(Condition[] conditions) {
	mHandler.obtainMessage(H.UPDATE_CONDITIONS, conditions).sendToTarget();
	}

	@Override
	public void onExitConditionChanged(Uri exitConditionId) {
	mHandler.obtainMessage(H.EXIT_CONDITION_CHANGED, exitConditionId).sendToTarget();
	}
	};

	private final class H extends Handler {
	private static final int UPDATE_CONDITIONS = 1;
	private static final int EXIT_CONDITION_CHANGED = 2;

	private H() {
	super(Looper.getMainLooper());
	}

	@Override
	public void handleMessage(Message msg) {
	if (msg.what == UPDATE_CONDITIONS) {
	handleUpdateConditions((Condition[])msg.obj);
	} else if (msg.what == EXIT_CONDITION_CHANGED) {
	handleExitConditionChanged((Uri)msg.obj);
	}
	}
	}

	public interface Callback {
	void onMoreSettings();
	void onInteraction();
	}

	// used as the view tag on condition rows
	private static class ConditionTag {
	RadioButton rb;
	Uri conditionId;
	}

	private final class Favorites implements OnSharedPreferenceChangeListener {
	private static final String KEY_MINUTE_INDEX = "minuteIndex";

	private int mMinuteIndex;

	private Favorites() {
	prefs().registerOnSharedPreferenceChangeListener(this);
	updateMinuteIndex();
	}

	public int getMinuteIndex() {
	return mMinuteIndex;
	}

	public void setMinuteIndex(int minuteIndex) {
	minuteIndex = clamp(minuteIndex);
	if (minuteIndex == mMinuteIndex) return;
	mMinuteIndex = clamp(minuteIndex);
	if (DEBUG) Log.d(mTag, "Setting favorite minute index: " + mMinuteIndex);
	prefs().edit().putInt(KEY_MINUTE_INDEX, mMinuteIndex).apply();
	}

	@Override
	public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
	updateMinuteIndex();
	}

	private SharedPreferences prefs() {
	return mContext.getSharedPreferences(ZenModePanel.class.getSimpleName(), 0);
	}

	private void updateMinuteIndex() {
	mMinuteIndex = clamp(prefs().getInt(KEY_MINUTE_INDEX, DEFAULT_BUCKET_INDEX));
	if (DEBUG) Log.d(mTag, "Favorite minute index: " + mMinuteIndex);
	}

	private int clamp(int index) {
	return Math.max(-1, Math.min(MINUTE_BUCKETS.length - 1, index));
	}
	}
	}