/*
* 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.internal.policy.impl;
import com.android.internal.R;
import com.android.internal.app.ShutdownThread;
import com.google.android.collect.Lists;
import android.app.AlertDialog;
import android.app.StatusBarManager;
import android.content.Context;
import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.DialogInterface;
import android.media.AudioManager;
import android.os.LocalPowerManager;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
/**
* Helper to show the global actions dialog. Each item is an {@link Action} that
* may show depending on whether the keyguard is showing, and whether the device
* is provisioned.
*/
class GlobalActions implements DialogInterface.OnDismissListener, DialogInterface.OnClickListener {
private StatusBarManager mStatusBar;
private final Context mContext;
private final LocalPowerManager mPowerManager;
private final AudioManager mAudioManager;
private ArrayList<Action> mItems;
private AlertDialog mDialog;
private ToggleAction mSilentModeToggle;
private MyAdapter mAdapter;
private boolean mKeyguardShowing = false;
private boolean mDeviceProvisioned = false;
/**
* @param context everything needs a context :)
* @param powerManager used to turn the screen off (the lock action).
*/
public GlobalActions(Context context, LocalPowerManager powerManager) {
mContext = context;
mPowerManager = powerManager;
mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
// receive broadcasts
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
context.registerReceiver(mBroadcastReceiver, filter);
}
/**
* Show the global actions dialog (creating if necessary)
* @param keyguardShowing True if keyguard is showing
*/
public void showDialog(boolean keyguardShowing, boolean isDeviceProvisioned) {
mKeyguardShowing = keyguardShowing;
mDeviceProvisioned = isDeviceProvisioned;
if (mDialog == null) {
mStatusBar = (StatusBarManager)mContext.getSystemService(Context.STATUS_BAR_SERVICE);
mDialog = createDialog();
}
prepareDialog();
mStatusBar.disable(StatusBarManager.DISABLE_EXPAND);
mDialog.show();
}
/**
* Create the global actions dialog.
* @return A new dialog.
*/
private AlertDialog createDialog() {
mSilentModeToggle = new ToggleAction(
R.drawable.ic_lock_silent_mode,
R.drawable.ic_lock_silent_mode_off,
R.string.global_action_toggle_silent_mode,
R.string.global_action_silent_mode_on_status,
R.string.global_action_silent_mode_off_status) {
void onToggle(boolean on) {
mAudioManager.setRingerMode(on ? AudioManager.RINGER_MODE_SILENT
: AudioManager.RINGER_MODE_NORMAL);
}
public boolean showDuringKeyguard() {
return true;
}
public boolean showBeforeProvisioning() {
return false;
}
};
mItems = Lists.newArrayList(
// first: lock screen
new SinglePressAction(com.android.internal.R.drawable.ic_lock_lock, R.string.global_action_lock) {
public void onPress() {
mPowerManager.goToSleep(SystemClock.uptimeMillis() + 1);
}
public boolean showDuringKeyguard() {
return false;
}
public boolean showBeforeProvisioning() {
return false;
}
},
// next: silent mode
mSilentModeToggle,
// last: power off
new SinglePressAction(com.android.internal.R.drawable.ic_lock_power_off, R.string.global_action_power_off) {
public void onPress() {
// shutdown by making sure radio and power are handled accordingly.
ShutdownThread.shutdown(mContext, true);
}
public boolean showDuringKeyguard() {
return true;
}
public boolean showBeforeProvisioning() {
return true;
}
});
mAdapter = new MyAdapter();
final AlertDialog.Builder ab = new AlertDialog.Builder(mContext);
ab.setAdapter(mAdapter, this)
.setInverseBackgroundForced(true)
.setTitle(R.string.global_actions);
final AlertDialog dialog = ab.create();
dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND,
WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
dialog.setOnDismissListener(this);
return dialog;
}
private void prepareDialog() {
// TODO: May need another 'Vibrate' toggle button, but for now treat them the same
final boolean silentModeOn =
mAudioManager.getRingerMode() != AudioManager.RINGER_MODE_NORMAL;
mSilentModeToggle.updateState(silentModeOn);
mAdapter.notifyDataSetChanged();
if (mKeyguardShowing) {
mDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
} else {
mDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
}
}
/** {@inheritDoc} */
public void onDismiss(DialogInterface dialog) {
mStatusBar.disable(StatusBarManager.DISABLE_NONE);
}
/** {@inheritDoc} */
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
mAdapter.getItem(which).onPress();
}
/**
* The adapter used for the list within the global actions dialog, taking
* into account whether the keyguard is showing via
* {@link GlobalActions#mKeyguardShowing} and whether the device is provisioned
* via {@link GlobalActions#mDeviceProvisioned}.
*/
private class MyAdapter extends BaseAdapter {
public int getCount() {
int count = 0;
for (int i = 0; i < mItems.size(); i++) {
final Action action = mItems.get(i);
if (mKeyguardShowing && !action.showDuringKeyguard()) {
continue;
}
if (!mDeviceProvisioned && !action.showBeforeProvisioning()) {
continue;
}
count++;
}
return count;
}
public Action getItem(int position) {
int filteredPos = 0;
for (int i = 0; i < mItems.size(); i++) {
final Action action = mItems.get(i);
if (mKeyguardShowing && !action.showDuringKeyguard()) {
continue;
}
if (!mDeviceProvisioned && !action.showBeforeProvisioning()) {
continue;
}
if (filteredPos == position) {
return action;
}
filteredPos++;
}
throw new IllegalArgumentException("position " + position + " out of "
+ "range of showable actions, filtered count = "
+ "= " + getCount() + ", keyguardshowing=" + mKeyguardShowing
+ ", provisioned=" + mDeviceProvisioned);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
Action action = getItem(position);
return action.create(mContext, (LinearLayout) convertView, LayoutInflater.from(mContext));
}
}
// note: the scheme below made more sense when we were planning on having
// 8 different things in the global actions dialog. seems overkill with
// only 3 items now, but may as well keep this flexible approach so it will
// be easy should someone decide at the last minute to include something
// else, such as 'enable wifi', or 'enable bluetooth'
/**
* What each item in the global actions dialog must be able to support.
*/
private interface Action {
LinearLayout create(Context context, LinearLayout convertView, LayoutInflater inflater);
void onPress();
/**
* @return whether this action should appear in the dialog when the keygaurd
* is showing.
*/
boolean showDuringKeyguard();
/**
* @return whether this action should appear in the dialog before the
* device is provisioned.
*/
boolean showBeforeProvisioning();
}
/**
* A single press action maintains no state, just responds to a press
* and takes an action.
*/
private static abstract class SinglePressAction implements Action {
private final int mIconResId;
private final int mMessageResId;
protected SinglePressAction(int iconResId, int messageResId) {
mIconResId = iconResId;
mMessageResId = messageResId;
}
abstract public void onPress();
public LinearLayout create(Context context, LinearLayout convertView, LayoutInflater inflater) {
LinearLayout v = (LinearLayout) ((convertView != null) ?
convertView :
inflater.inflate(R.layout.global_actions_item, null));
ImageView icon = (ImageView) v.findViewById(R.id.icon);
TextView messageView = (TextView) v.findViewById(R.id.message);
v.findViewById(R.id.status).setVisibility(View.GONE);
icon.setImageDrawable(context.getResources().getDrawable(mIconResId));
messageView.setText(mMessageResId);
return v;
}
}
/**
* A toggle action knows whether it is on or off, and displays an icon
* and status message accordingly.
*/
static abstract class ToggleAction implements Action {
private boolean mOn = false;
// prefs
private final int mEnabledIconResId;
private final int mDisabledIconResid;
private final int mMessageResId;
private final int mEnabledStatusMessageResId;
private final int mDisabledStatusMessageResId;
/**
* @param enabledIconResId The icon for when this action is on.
* @param disabledIconResid The icon for when this action is off.
* @param essage The general information message, e.g 'Silent Mode'
* @param enabledStatusMessageResId The on status message, e.g 'sound disabled'
* @param disabledStatusMessageResId The off status message, e.g. 'sound enabled'
*/
public ToggleAction(int enabledIconResId,
int disabledIconResid,
int essage,
int enabledStatusMessageResId,
int disabledStatusMessageResId) {
mEnabledIconResId = enabledIconResId;
mDisabledIconResid = disabledIconResid;
mMessageResId = essage;
mEnabledStatusMessageResId = enabledStatusMessageResId;
mDisabledStatusMessageResId = disabledStatusMessageResId;
}
public LinearLayout create(Context context, LinearLayout convertView,
LayoutInflater inflater) {
LinearLayout v = (LinearLayout) ((convertView != null) ?
convertView :
inflater.inflate(R
.layout.global_actions_item, null));
ImageView icon = (ImageView) v.findViewById(R.id.icon);
TextView messageView = (TextView) v.findViewById(R.id.message);
TextView statusView = (TextView) v.findViewById(R.id.status);
messageView.setText(mMessageResId);
icon.setImageDrawable(context.getResources().getDrawable(
(mOn ? mEnabledIconResId : mDisabledIconResid)));
statusView.setText(mOn ? mEnabledStatusMessageResId : mDisabledStatusMessageResId);
statusView.setVisibility(View.VISIBLE);
return v;
}
public void onPress() {
updateState(!mOn);
onToggle(mOn);
}
abstract void onToggle(boolean on);
public void updateState(boolean on) {
mOn = on;
}
}
private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (Intent.ACTION_CLOSE_SYSTEM_DIALOGS.equals(action)) {
String reason = intent.getStringExtra(MidWindowManager.SYSTEM_DIALOG_REASON_KEY);
if (! MidWindowManager.SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS.equals(reason)) {
mHandler.sendEmptyMessage(MESSAGE_DISMISS);
}
}
}
};
private static final int MESSAGE_DISMISS = 0;
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what == MESSAGE_DISMISS) {
if (mDialog != null) {
mDialog.dismiss();
}
}
}
};
}