/*
* Copyright (C) 2012 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.settings;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceViewHolder;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.MenuItem.OnMenuItemClickListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.Switch;
import android.widget.TextView;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.widget.SwitchBar;
import com.android.settingslib.dream.DreamBackend;
import com.android.settingslib.dream.DreamBackend.DreamInfo;
import java.util.List;
public class DreamSettings extends SettingsPreferenceFragment implements
SwitchBar.OnSwitchChangeListener {
private static final String TAG = DreamSettings.class.getSimpleName();
static final boolean DEBUG = false;
private static final int DIALOG_WHEN_TO_DREAM = 1;
private static final String PACKAGE_SCHEME = "package";
private final PackageReceiver mPackageReceiver = new PackageReceiver();
private Context mContext;
private DreamBackend mBackend;
private SwitchBar mSwitchBar;
private MenuItem[] mMenuItemsWhenEnabled;
private boolean mRefreshing;
@Override
public int getHelpResource() {
return R.string.help_url_dreams;
}
@Override
public void onAttach(Activity activity) {
logd("onAttach(%s)", activity.getClass().getSimpleName());
super.onAttach(activity);
mContext = activity;
}
@Override
protected int getMetricsCategory() {
return MetricsEvent.DREAM;
}
@Override
public void onCreate(Bundle icicle) {
logd("onCreate(%s)", icicle);
super.onCreate(icicle);
mBackend = new DreamBackend(getActivity());
setHasOptionsMenu(true);
}
@Override
public void onSwitchChanged(Switch switchView, boolean isChecked) {
if (!mRefreshing) {
mBackend.setEnabled(isChecked);
refreshFromBackend();
}
}
@Override
public void onStart() {
logd("onStart()");
super.onStart();
}
@Override
public void onDestroyView() {
logd("onDestroyView()");
super.onDestroyView();
mSwitchBar.removeOnSwitchChangeListener(this);
mSwitchBar.hide();
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
logd("onActivityCreated(%s)", savedInstanceState);
super.onActivityCreated(savedInstanceState);
TextView emptyView = (TextView) getView().findViewById(android.R.id.empty);
emptyView.setText(R.string.screensaver_settings_disabled_prompt);
setEmptyView(emptyView);
final SettingsActivity sa = (SettingsActivity) getActivity();
mSwitchBar = sa.getSwitchBar();
mSwitchBar.addOnSwitchChangeListener(this);
mSwitchBar.show();
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
logd("onCreateOptionsMenu()");
boolean isEnabled = mBackend.isEnabled();
// create "start" action
MenuItem start = createMenuItem(menu, R.string.screensaver_settings_dream_start,
MenuItem.SHOW_AS_ACTION_NEVER,
isEnabled, new Runnable(){
@Override
public void run() {
mBackend.startDreaming();
}});
// create "when to dream" overflow menu item
MenuItem whenToDream = createMenuItem(menu,
R.string.screensaver_settings_when_to_dream,
MenuItem.SHOW_AS_ACTION_NEVER,
isEnabled,
new Runnable() {
@Override
public void run() {
showDialog(DIALOG_WHEN_TO_DREAM);
}});
// create "help" overflow menu item (make sure it appears last)
super.onCreateOptionsMenu(menu, inflater);
mMenuItemsWhenEnabled = new MenuItem[] { start, whenToDream };
}
private MenuItem createMenuItem(Menu menu,
int titleRes, int actionEnum, boolean isEnabled, final Runnable onClick) {
MenuItem item = menu.add(titleRes);
item.setShowAsAction(actionEnum);
item.setEnabled(isEnabled);
item.setOnMenuItemClickListener(new OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
onClick.run();
return true;
}
});
return item;
}
@Override
public Dialog onCreateDialog(int dialogId) {
logd("onCreateDialog(%s)", dialogId);
if (dialogId == DIALOG_WHEN_TO_DREAM)
return createWhenToDreamDialog();
return super.onCreateDialog(dialogId);
}
private Dialog createWhenToDreamDialog() {
final CharSequence[] items = {
mContext.getString(R.string.screensaver_settings_summary_dock),
mContext.getString(R.string.screensaver_settings_summary_sleep),
mContext.getString(R.string.screensaver_settings_summary_either_short)
};
int initialSelection = mBackend.isActivatedOnDock() && mBackend.isActivatedOnSleep() ? 2
: mBackend.isActivatedOnDock() ? 0
: mBackend.isActivatedOnSleep() ? 1
: -1;
return new AlertDialog.Builder(mContext)
.setTitle(R.string.screensaver_settings_when_to_dream)
.setSingleChoiceItems(items, initialSelection, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
mBackend.setActivatedOnDock(item == 0 || item == 2);
mBackend.setActivatedOnSleep(item == 1 || item == 2);
dialog.dismiss();
}
})
.create();
}
@Override
public void onPause() {
logd("onPause()");
super.onPause();
mContext.unregisterReceiver(mPackageReceiver);
}
@Override
public void onResume() {
logd("onResume()");
super.onResume();
refreshFromBackend();
// listen for package changes
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_PACKAGE_ADDED);
filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
filter.addAction(Intent.ACTION_PACKAGE_REPLACED);
filter.addDataScheme(PACKAGE_SCHEME);
mContext.registerReceiver(mPackageReceiver , filter);
}
public static int getSummaryResource(Context context) {
DreamBackend backend = new DreamBackend(context);
boolean isEnabled = backend.isEnabled();
boolean activatedOnSleep = backend.isActivatedOnSleep();
boolean activatedOnDock = backend.isActivatedOnDock();
boolean activatedOnEither = activatedOnSleep && activatedOnDock;
return !isEnabled ? R.string.screensaver_settings_summary_off
: activatedOnEither ? R.string.screensaver_settings_summary_either_long
: activatedOnSleep ? R.string.screensaver_settings_summary_sleep
: activatedOnDock ? R.string.screensaver_settings_summary_dock
: 0;
}
public static CharSequence getSummaryTextWithDreamName(Context context) {
DreamBackend backend = new DreamBackend(context);
boolean isEnabled = backend.isEnabled();
if (!isEnabled) {
return context.getString(R.string.screensaver_settings_summary_off);
} else {
return backend.getActiveDreamName();
}
}
private void refreshFromBackend() {
logd("refreshFromBackend()");
mRefreshing = true;
boolean dreamsEnabled = mBackend.isEnabled();
if (mSwitchBar.isChecked() != dreamsEnabled) {
mSwitchBar.setChecked(dreamsEnabled);
}
if (getPreferenceScreen() == null) {
setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getContext()));
}
getPreferenceScreen().removeAll();
if (dreamsEnabled) {
List<DreamBackend.DreamInfo> dreamInfos = mBackend.getDreamInfos();
final int N = dreamInfos.size();
for (int i = 0; i < N; i++) {
getPreferenceScreen().addPreference(
new DreamInfoPreference(getPrefContext(), dreamInfos.get(i)));
}
}
if (mMenuItemsWhenEnabled != null) {
for (MenuItem menuItem : mMenuItemsWhenEnabled) {
menuItem.setEnabled(dreamsEnabled);
}
}
mRefreshing = false;
}
private static void logd(String msg, Object... args) {
if (DEBUG) Log.d(TAG, args == null || args.length == 0 ? msg : String.format(msg, args));
}
private class DreamInfoPreference extends Preference {
private final DreamInfo mInfo;
public DreamInfoPreference(Context context, DreamInfo info) {
super(context);
mInfo = info;
setLayoutResource(R.layout.dream_info_row);
setTitle(mInfo.caption);
setIcon(mInfo.icon);
}
public void onBindViewHolder(final PreferenceViewHolder holder) {
super.onBindViewHolder(holder);
// bind radio button
RadioButton radioButton = (RadioButton) holder.findViewById(android.R.id.button1);
radioButton.setChecked(mInfo.isActive);
radioButton.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
holder.itemView.onTouchEvent(event);
return false;
}
});
// bind settings button + divider
boolean showSettings = mInfo.settingsComponentName != null;
View settingsDivider = holder.findViewById(R.id.divider);
settingsDivider.setVisibility(showSettings ? View.VISIBLE : View.INVISIBLE);
ImageView settingsButton = (ImageView) holder.findViewById(android.R.id.button2);
settingsButton.setVisibility(showSettings ? View.VISIBLE : View.INVISIBLE);
settingsButton.setAlpha(mInfo.isActive ? 1f : Utils.DISABLED_ALPHA);
settingsButton.setEnabled(mInfo.isActive);
settingsButton.setFocusable(mInfo.isActive);
settingsButton.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
mBackend.launchSettings(mInfo);
}
});
}
@Override
public void performClick() {
if (mInfo.isActive)
return;
for (int i = 0; i < getPreferenceScreen().getPreferenceCount(); i++) {
DreamInfoPreference preference =
(DreamInfoPreference) getPreferenceScreen().getPreference(i);
preference.mInfo.isActive = false;
preference.notifyChanged();
}
mInfo.isActive = true;
mBackend.setActiveDream(mInfo.componentName);
notifyChanged();
}
}
private class PackageReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
logd("PackageReceiver.onReceive");
refreshFromBackend();
}
}
}