/*
* Copyright (C) 2007 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 cn.edu.tsinghua.hpc.tcontacts;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.media.AudioManager;
import android.media.ToneGenerator;
import android.net.Uri;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.Vibrator;
import android.provider.Contacts.Intents.Insert;
import android.provider.Contacts.People;
import android.provider.Contacts.Phones;
import android.provider.Contacts.PhonesColumns;
import android.provider.Settings;
import android.telephony.PhoneNumberFormattingTextWatcher;
import android.telephony.PhoneNumberUtils;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.method.DialerKeyListener;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import cn.edu.tsinghua.hpc.tcontacts.util.TIntent;
import com.android.internal.telephony.ITelephony;
/**
* Dialer activity that displays the typical twelve key interface.
*/
public class TwelveKeyDialer extends Activity implements View.OnClickListener,
View.OnLongClickListener, View.OnKeyListener,
AdapterView.OnItemClickListener, TextWatcher {
private static final String TAG = "TwelveKeyDialer";
/** The length of DTMF tones in milliseconds */
private static final int TONE_LENGTH_MS = 150;
/** The DTMF tone volume relative to other sounds in the stream */
private static final int TONE_RELATIVE_VOLUME = 80;
/**
* Stream type used to play the DTMF tones off call, and mapped to the
* volume control keys
*/
private static final int DIAL_TONE_STREAM_TYPE = AudioManager.STREAM_MUSIC;
/** Play the vibrate pattern only once. */
private static final int VIBRATE_NO_REPEAT = -1;
private EditText mDigits;
private View mDelete;
private MenuItem mAddToContactMenuItem;
private ToneGenerator mToneGenerator;
private Object mToneGeneratorLock = new Object();
private Drawable mDigitsBackground;
private Drawable mDigitsEmptyBackground;
private View mDialpad;
private View mVoicemailDialAndDeleteRow;
private View mVoicemailButton;
private View mDialButton;
private ListView mDialpadChooser;
private DialpadChooserAdapter mDialpadChooserAdapter;
// Member variables for dialpad options
private MenuItem m2SecPauseMenuItem;
private MenuItem mWaitMenuItem;
private static final int MENU_ADD_CONTACTS = 1;
private static final int MENU_2S_PAUSE = 2;
private static final int MENU_WAIT = 3;
// determines if we want to playback local DTMF tones.
private boolean mDTMFToneEnabled;
// Vibration (haptic feedback) for dialer key presses.
private Vibrator mVibrator;
private boolean mVibrateOn;
private long[] mVibratePattern;
/** Identifier for the "Add Call" intent extra. */
static final String ADD_CALL_MODE_KEY = "add_call_mode";
/**
* Identifier for intent extra for sending an empty Flash message for CDMA
* networks. This message is used by the network to simulate a press/depress
* of the "hookswitch" of a landline phone. Aka "empty flash".
*
* TODO: Using an intent extra to tell the phone to send this flash is a
* temporary measure. To be replaced with an ITelephony call in the future.
* TODO: Keep in sync with the string defined in
* OutgoingCallBroadcaster.java in Phone app until this is replaced with the
* ITelephony API.
*/
static final String EXTRA_SEND_EMPTY_FLASH = "com.android.phone.extra.SEND_EMPTY_FLASH";
/**
* Indicates if we are opening this dialer to add a call from the
* InCallScreen.
*/
private boolean mIsAddCallMode;
PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
/**
* Listen for phone state changes so that we can take down the
* "dialpad chooser" if the phone becomes idle while the chooser UI is
* visible.
*/
@Override
public void onCallStateChanged(int state, String incomingNumber) {
// Log.i(TAG, "PhoneStateListener.onCallStateChanged: "
// + state + ", '" + incomingNumber + "'");
if ((state == TelephonyManager.CALL_STATE_IDLE)
&& dialpadChooserVisible()) {
// Log.i(TAG,
// "Call ended with dialpad chooser visible! Taking it down...");
// Note there's a race condition in the UI here: the
// dialpad chooser could conceivably disappear (on its
// own) at the exact moment the user was trying to select
// one of the choices, which would be confusing. (But at
// least that's better than leaving the dialpad chooser
// onscreen, but useless...)
showDialpadChooser(false);
}
}
};
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// Do nothing
}
public void onTextChanged(CharSequence input, int start, int before,
int changeCount) {
// Do nothing
// DTMF Tones do not need to be played here any longer -
// the DTMF dialer handles that functionality now.
}
public void afterTextChanged(Editable input) {
if (SpecialCharSequenceMgr.handleChars(this, input.toString(), mDigits)) {
// A special sequence was entered, clear the digits
mDigits.getText().clear();
}
final boolean notEmpty = mDigits.length() != 0;
if (notEmpty) {
mDigits.setBackgroundDrawable(mDigitsBackground);
} else {
mDigits.setCursorVisible(false);
mDigits.setBackgroundDrawable(mDigitsEmptyBackground);
}
updateDialAndDeleteButtonStateEnabledAttr();
}
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
// Set the content view
setContentView(getContentViewResource());
// Load up the resources for the text field.
Resources r = getResources();
mDigitsBackground = r.getDrawable(R.drawable.btn_dial_textfield_active);
mDigitsEmptyBackground = r.getDrawable(R.drawable.btn_dial_textfield);
mDigits = (EditText) findViewById(R.id.digits);
mDigits.setKeyListener(DialerKeyListener.getInstance());
mDigits.setOnClickListener(this);
mDigits.setOnKeyListener(this);
maybeAddNumberFormatting();
// Check for the presence of the keypad
View view = findViewById(R.id.one);
if (view != null) {
setupKeypad();
}
mVoicemailDialAndDeleteRow = findViewById(R.id.voicemailAndDialAndDelete);
initVoicemailButton();
// Check whether we should show the onscreen "Dial" button.
mDialButton = mVoicemailDialAndDeleteRow.findViewById(R.id.dialButton);
if (r.getBoolean(R.bool.config_show_onscreen_dial_button)) {
mDialButton.setOnClickListener(this);
} else {
mDialButton.setVisibility(View.GONE); // It's VISIBLE by default
mDialButton = null;
}
view = mVoicemailDialAndDeleteRow.findViewById(R.id.deleteButton);
view.setOnClickListener(this);
view.setOnLongClickListener(this);
mDelete = view;
mDialpad = findViewById(R.id.dialpad); // This is null in landscape
// mode.
// In landscape we put the keyboard in phone mode.
// In portrait we prevent the soft keyboard to show since the
// dialpad acts as one already.
if (null == mDialpad) {
mDigits.setInputType(android.text.InputType.TYPE_CLASS_PHONE);
} else {
mDigits.setInputType(android.text.InputType.TYPE_NULL);
}
// Set up the "dialpad chooser" UI; see showDialpadChooser().
mDialpadChooser = (ListView) findViewById(R.id.dialpadChooser);
mDialpadChooser.setOnItemClickListener(this);
if (!resolveIntent() && icicle != null) {
super.onRestoreInstanceState(icicle);
}
// TODO: We might eventually need to make mVibrateOn come from a
// user preference rather than a per-platform resource, in which
// case we would need to update it in onResume() rather than here.
initVibrationPattern(r);
}
@Override
protected void onRestoreInstanceState(Bundle icicle) {
// Do nothing, state is restored in onCreate() if needed
}
protected void maybeAddNumberFormatting() {
mDigits.addTextChangedListener(new PhoneNumberFormattingTextWatcher());
}
/**
* Overridden by subclasses to control the resource used by the content
* view.
*/
protected int getContentViewResource() {
return R.layout.twelve_key_dialer;
}
private boolean resolveIntent() {
boolean ignoreState = false;
// Find the proper intent
final Intent intent;
if (isChild()) {
intent = getParent().getIntent();
ignoreState = intent.getBooleanExtra(
DialtactsActivity.EXTRA_IGNORE_STATE, false);
} else {
intent = getIntent();
}
// Log.i(TAG, "==> resolveIntent(): intent: " + intent);
// by default we are not adding a call.
mIsAddCallMode = false;
// By default we don't show the "dialpad chooser" UI.
boolean needToShowDialpadChooser = false;
// Resolve the intent
final String action = intent.getAction();
if (TIntent.ACTION_DIAL.equals(action)
|| TIntent.ACTION_VIEW.equals(action)) {
// see if we are "adding a call" from the InCallScreen; false by
// default.
mIsAddCallMode = intent.getBooleanExtra(ADD_CALL_MODE_KEY, false);
Uri uri = intent.getData();
if (uri != null) {
if ("tel".equals(uri.getScheme())) {
// Put the requested number into the input area
String data = uri.getSchemeSpecificPart();
setFormattedDigits(data);
} else {
String type = intent.getType();
if (People.CONTENT_ITEM_TYPE.equals(type)
|| Phones.CONTENT_ITEM_TYPE.equals(type)) {
// Query the phone number
Cursor c = getContentResolver().query(intent.getData(),
new String[] { PhonesColumns.NUMBER }, null,
null, null);
if (c != null) {
if (c.moveToFirst()) {
// Put the number into the input area
setFormattedDigits(c.getString(0));
}
c.close();
}
}
}
}
} else if (Intent.ACTION_MAIN.equals(action)) {
// The MAIN action means we're bringing up a blank dialer
// (e.g. by selecting the Home shortcut, or tabbing over from
// Contacts or Call log.)
//
// At this point, IF there's already an active call, there's a
// good chance that the user got here accidentally (but really
// wanted the in-call dialpad instead). So we bring up an
// intermediate UI to make the user confirm what they really
// want to do.
if (phoneIsInUse()) {
// Log.i(TAG,
// "resolveIntent(): phone is in use; showing dialpad chooser!");
needToShowDialpadChooser = true;
}
}
// Bring up the "dialpad chooser" IFF we need to make the user
// confirm which dialpad they really want.
showDialpadChooser(needToShowDialpadChooser);
return ignoreState;
}
protected void setFormattedDigits(String data) {
// strip the non-dialable numbers out of the data string.
String dialString = PhoneNumberUtils.extractNetworkPortion(data);
dialString = PhoneNumberUtils.formatNumber(dialString);
if (!TextUtils.isEmpty(dialString)) {
Editable digits = mDigits.getText();
digits.replace(0, digits.length(), dialString);
// for some reason this isn't getting called in the digits.replace
// call above..
// but in any case, this will make sure the background drawable
// looks right
afterTextChanged(digits);
}
}
@Override
protected void onNewIntent(Intent newIntent) {
setIntent(newIntent);
resolveIntent();
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// This can't be done in onCreate(), since the auto-restoring of the
// digits
// will play DTMF tones for all the old digits if it is when
// onRestoreSavedInstanceState()
// is called. This method will be called every time the activity is
// created, and
// will always happen after onRestoreSavedInstanceState().
mDigits.addTextChangedListener(this);
}
private void setupKeypad() {
// Setup the listeners for the buttons
View view = findViewById(R.id.one);
view.setOnClickListener(this);
view.setOnLongClickListener(this);
findViewById(R.id.two).setOnClickListener(this);
findViewById(R.id.three).setOnClickListener(this);
findViewById(R.id.four).setOnClickListener(this);
findViewById(R.id.five).setOnClickListener(this);
findViewById(R.id.six).setOnClickListener(this);
findViewById(R.id.seven).setOnClickListener(this);
findViewById(R.id.eight).setOnClickListener(this);
findViewById(R.id.nine).setOnClickListener(this);
findViewById(R.id.star).setOnClickListener(this);
view = findViewById(R.id.zero);
view.setOnClickListener(this);
view.setOnLongClickListener(this);
findViewById(R.id.pound).setOnClickListener(this);
}
@Override
protected void onResume() {
super.onResume();
// retrieve the DTMF tone play back setting.
mDTMFToneEnabled = Settings.System.getInt(getContentResolver(),
Settings.System.DTMF_TONE_WHEN_DIALING, 1) == 1;
// if the mToneGenerator creation fails, just continue without it. It is
// a local audio signal, and is not as important as the dtmf tone
// itself.
synchronized (mToneGeneratorLock) {
if (mToneGenerator == null) {
try {
// we want the user to be able to control the volume of the
// dial tones
// outside of a call, so we use the stream type that is also
// mapped to the
// volume control keys for this activity
mToneGenerator = new ToneGenerator(DIAL_TONE_STREAM_TYPE,
TONE_RELATIVE_VOLUME);
setVolumeControlStream(DIAL_TONE_STREAM_TYPE);
} catch (RuntimeException e) {
Log.w(TAG,
"Exception caught while creating local tone generator: "
+ e);
mToneGenerator = null;
}
}
}
Activity parent = getParent();
// See if we were invoked with a DIAL intent. If we were, fill in the
// appropriate
// digits in the dialer field.
if (parent != null && parent instanceof DialtactsActivity) {
Uri dialUri = ((DialtactsActivity) parent).getAndClearDialUri();
if (dialUri != null) {
resolveIntent();
}
}
// While we're in the foreground, listen for phone state changes,
// purely so that we can take down the "dialpad chooser" if the
// phone becomes idle while the chooser UI is visible.
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
telephonyManager.listen(mPhoneStateListener,
PhoneStateListener.LISTEN_CALL_STATE);
// Potentially show hint text in the mDigits field when the user
// hasn't typed any digits yet. (If there's already an active call,
// this hint text will remind the user that he's about to add a new
// call.)
//
// TODO: consider adding better UI for the case where *both* lines
// are currently in use. (Right now we let the user try to add
// another call, but that call is guaranteed to fail. Perhaps the
// entire dialer UI should be disabled instead.)
if (phoneIsInUse()) {
mDigits.setHint(R.string.dialerDialpadHintText);
} else {
// Common case; no hint necessary.
mDigits.setHint(null);
// Also, a sanity-check: the "dialpad chooser" UI should NEVER
// be visible if the phone is idle!
showDialpadChooser(false);
}
updateDialAndDeleteButtonStateEnabledAttr();
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (hasFocus) {
// Hide soft keyboard, if visible (it's fugly over button dialer).
// The only known case where this will be true is when launching the
// dialer with
// ACTION_DIAL via a soft keyboard. we dismiss it here because we
// don't
// have a window token yet in onCreate / onNewIntent
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(
mDigits.getWindowToken(), 0);
}
}
@Override
protected void onPause() {
super.onPause();
// Stop listening for phone state changes.
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
telephonyManager.listen(mPhoneStateListener,
PhoneStateListener.LISTEN_NONE);
synchronized (mToneGeneratorLock) {
if (mToneGenerator != null) {
mToneGenerator.release();
mToneGenerator = null;
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
mAddToContactMenuItem = menu.add(0, MENU_ADD_CONTACTS, 0,
R.string.recentCalls_addToContact).setIcon(
android.R.drawable.ic_menu_add);
m2SecPauseMenuItem = menu.add(0, MENU_2S_PAUSE, 0,
R.string.add_2sec_pause).setIcon(R.drawable.ic_menu_2sec_pause);
mWaitMenuItem = menu.add(0, MENU_WAIT, 0, R.string.add_wait).setIcon(
R.drawable.ic_menu_wait);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// We never show a menu if the "choose dialpad" UI is up.
if (dialpadChooserVisible()) {
return false;
}
CharSequence digits = mDigits.getText();
if (digits == null || !TextUtils.isGraphic(digits)) {
mAddToContactMenuItem.setVisible(false);
m2SecPauseMenuItem.setVisible(false);
mWaitMenuItem.setVisible(false);
} else {
// Put the current digits string into an intent
Intent intent = new Intent(TIntent.ACTION_INSERT_OR_EDIT);
intent.putExtra(Insert.PHONE, mDigits.getText());
intent.setType(People.CONTENT_ITEM_TYPE);
mAddToContactMenuItem.setIntent(intent);
mAddToContactMenuItem.setVisible(true);
// Check out whether to show Pause & Wait option menu items
int selectionStart;
int selectionEnd;
String strDigits = digits.toString();
selectionStart = mDigits.getSelectionStart();
selectionEnd = mDigits.getSelectionEnd();
if (selectionStart != -1) {
if (selectionStart > selectionEnd) {
// swap it as we want start to be less then end
int tmp = selectionStart;
selectionStart = selectionEnd;
selectionEnd = tmp;
}
if (selectionStart != 0) {
// Pause can be visible if cursor is not in the begining
m2SecPauseMenuItem.setVisible(true);
// For Wait to be visible set of condition to meet
mWaitMenuItem.setVisible(showWait(selectionStart,
selectionEnd, strDigits));
} else {
// cursor in the beginning both pause and wait to be
// invisible
m2SecPauseMenuItem.setVisible(false);
mWaitMenuItem.setVisible(false);
}
} else {
// cursor is not selected so assume new digit is added to the
// end
int strLength = strDigits.length();
mWaitMenuItem.setVisible(showWait(strLength, strLength,
strDigits));
}
}
return true;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_CALL: {
long callPressDiff = SystemClock.uptimeMillis()
- event.getDownTime();
if (callPressDiff >= ViewConfiguration.getLongPressTimeout()) {
// Launch voice dialer
Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
startActivity(intent);
} catch (ActivityNotFoundException e) {
}
}
return true;
}
case KeyEvent.KEYCODE_1: {
long timeDiff = SystemClock.uptimeMillis() - event.getDownTime();
if (timeDiff >= ViewConfiguration.getLongPressTimeout()) {
// Long press detected, call voice mail
callVoicemail();
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_CALL: {
if (phoneIsCdma()) {
// If we're CDMA, regardless of where we are adding a call from
// (either
// InCallScreen or Dialtacts), the user may need to send an
// empty
// flash command to the network. So let's call placeCall()
// regardless
// and placeCall will handle this functionality for us.
placeCall();
} else if (mIsAddCallMode
&& (TextUtils.isEmpty(mDigits.getText().toString()))) {
// if we are adding a call from the InCallScreen and the phone
// number entered is empty, we just close the dialer to expose
// the InCallScreen under it.
finish();
} else {
// otherwise, we place the call.
placeCall();
}
return true;
}
}
return super.onKeyUp(keyCode, event);
}
private void keyPressed(int keyCode) {
vibrate();
KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, keyCode);
mDigits.onKeyDown(keyCode, event);
}
public boolean onKey(View view, int keyCode, KeyEvent event) {
switch (view.getId()) {
case R.id.digits:
if (keyCode == KeyEvent.KEYCODE_ENTER) {
placeCall();
return true;
}
break;
}
return false;
}
public void onClick(View view) {
switch (view.getId()) {
case R.id.one: {
playTone(ToneGenerator.TONE_DTMF_1);
keyPressed(KeyEvent.KEYCODE_1);
return;
}
case R.id.two: {
playTone(ToneGenerator.TONE_DTMF_2);
keyPressed(KeyEvent.KEYCODE_2);
return;
}
case R.id.three: {
playTone(ToneGenerator.TONE_DTMF_3);
keyPressed(KeyEvent.KEYCODE_3);
return;
}
case R.id.four: {
playTone(ToneGenerator.TONE_DTMF_4);
keyPressed(KeyEvent.KEYCODE_4);
return;
}
case R.id.five: {
playTone(ToneGenerator.TONE_DTMF_5);
keyPressed(KeyEvent.KEYCODE_5);
return;
}
case R.id.six: {
playTone(ToneGenerator.TONE_DTMF_6);
keyPressed(KeyEvent.KEYCODE_6);
return;
}
case R.id.seven: {
playTone(ToneGenerator.TONE_DTMF_7);
keyPressed(KeyEvent.KEYCODE_7);
return;
}
case R.id.eight: {
playTone(ToneGenerator.TONE_DTMF_8);
keyPressed(KeyEvent.KEYCODE_8);
return;
}
case R.id.nine: {
playTone(ToneGenerator.TONE_DTMF_9);
keyPressed(KeyEvent.KEYCODE_9);
return;
}
case R.id.zero: {
playTone(ToneGenerator.TONE_DTMF_0);
keyPressed(KeyEvent.KEYCODE_0);
return;
}
case R.id.pound: {
playTone(ToneGenerator.TONE_DTMF_P);
keyPressed(KeyEvent.KEYCODE_POUND);
return;
}
case R.id.star: {
playTone(ToneGenerator.TONE_DTMF_S);
keyPressed(KeyEvent.KEYCODE_STAR);
return;
}
case R.id.deleteButton: {
keyPressed(KeyEvent.KEYCODE_DEL);
return;
}
case R.id.dialButton: {
vibrate(); // Vibrate here too, just like we do for the regular keys
placeCall();
return;
}
case R.id.voicemailButton: {
callVoicemail();
vibrate();
return;
}
case R.id.digits: {
if (mDigits.length() != 0) {
mDigits.setCursorVisible(true);
}
return;
}
}
}
public boolean onLongClick(View view) {
final Editable digits = mDigits.getText();
int id = view.getId();
switch (id) {
case R.id.deleteButton: {
digits.clear();
// TODO: The framework forgets to clear the pressed
// status of disabled button. Until this is fixed,
// clear manually the pressed status. b/2133127
mDelete.setPressed(false);
return true;
}
case R.id.one: {
if (digits.length() == 0) {
callVoicemail();
return true;
}
return false;
}
case R.id.zero: {
keyPressed(KeyEvent.KEYCODE_PLUS);
return true;
}
}
return false;
}
void callVoicemail() {
Intent intent = new Intent(TIntent.ACTION_CALL_PRIVILEGED,
Uri.fromParts("voicemail", "", null));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
mDigits.getText().clear();
finish();
}
void placeCall() {
final String number = mDigits.getText().toString();
boolean sendEmptyFlash = false;
// Intent intent = new Intent(TIntent.ACTION_CALL_PRIVILEGED, Uri
// .fromParts("tel", number, null));
Intent intent = new Intent(Intent.ACTION_CALL, Uri.fromParts("tel",
number, null)); // add by chenqiang
if (number == null || !TextUtils.isGraphic(number)) {
// There is no number entered.
if (phoneIsCdma() && phoneIsOffhook()) {
// We only want to send this empty flash extra if we're CDMA and
// the
// phone is offhook (don't want to send if ringing or dialing)
intent.putExtra(EXTRA_SEND_EMPTY_FLASH, true);
sendEmptyFlash = true;
} else {
playTone(ToneGenerator.TONE_PROP_NACK);
return;
}
}
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addCategory(Intent.CATEGORY_DEFAULT); // add by chenqiang
startActivity(intent);
mDigits.getText().clear();
// Don't finish TwelveKeyDialer yet if we're sending a blank flash for
// CDMA. CDMA
// networks use Flash messages when special processing needs to be done,
// mainly for
// 3-way or call waiting scenarios. Presumably, here we're in a special
// 3-way scenario
// where the network needs a blank flash before being able to add the
// new participant.
// (This is not the case with all 3-way calls, just certain CDMA
// infrastructures.)
if (!sendEmptyFlash) {
finish();
}
}
/**
* Plays the specified tone for TONE_LENGTH_MS milliseconds.
*
* The tone is played locally, using the audio stream for phone calls. Tones
* are played only if the "Audible touch tones" user preference is checked,
* and are NOT played if the device is in silent mode.
*
* @param tone
* a tone code from {@link ToneGenerator}
*/
void playTone(int tone) {
// if local tone playback is disabled, just return.
if (!mDTMFToneEnabled) {
return;
}
// Also do nothing if the phone is in silent mode.
// We need to re-check the ringer mode for *every* playTone()
// call, rather than keeping a local flag that's updated in
// onResume(), since it's possible to toggle silent mode without
// leaving the current activity (via the ENDCALL-longpress menu.)
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
int ringerMode = audioManager.getRingerMode();
if ((ringerMode == AudioManager.RINGER_MODE_SILENT)
|| (ringerMode == AudioManager.RINGER_MODE_VIBRATE)) {
return;
}
synchronized (mToneGeneratorLock) {
if (mToneGenerator == null) {
Log.w(TAG, "playTone: mToneGenerator == null, tone: " + tone);
return;
}
// Start the new tone (will stop any playing tone)
mToneGenerator.startTone(tone, TONE_LENGTH_MS);
}
}
/**
* Brings up the "dialpad chooser" UI in place of the usual Dialer elements
* (the textfield/button and the dialpad underneath).
*
* We show this UI if the user brings up the Dialer while a call is already
* in progress, since there's a good chance we got here accidentally (and
* the user really wanted the in-call dialpad instead). So in this situation
* we display an intermediate UI that lets the user explicitly choose
* between the in-call dialpad ("Use touch tone
* keypad") and the regular Dialer ("Add call"). (Or, the option "Return to
* call in progress" just goes back to the in-call UI with no dialpad at
* all.)
*
* @param enabled
* If true, show the "dialpad chooser" instead of the regular
* Dialer UI
*/
private void showDialpadChooser(boolean enabled) {
if (enabled) {
// Log.i(TAG, "Showing dialpad chooser!");
mDigits.setVisibility(View.GONE);
if (mDialpad != null)
mDialpad.setVisibility(View.GONE);
mVoicemailDialAndDeleteRow.setVisibility(View.GONE);
mDialpadChooser.setVisibility(View.VISIBLE);
// Instantiate the DialpadChooserAdapter and hook it up to the
// ListView. We do this only once.
if (mDialpadChooserAdapter == null) {
mDialpadChooserAdapter = new DialpadChooserAdapter(this);
mDialpadChooser.setAdapter(mDialpadChooserAdapter);
}
} else {
// Log.i(TAG, "Displaying normal Dialer UI.");
mDigits.setVisibility(View.VISIBLE);
if (mDialpad != null)
mDialpad.setVisibility(View.VISIBLE);
mVoicemailDialAndDeleteRow.setVisibility(View.VISIBLE);
mDialpadChooser.setVisibility(View.GONE);
}
}
/**
* @return true if we're currently showing the "dialpad chooser" UI.
*/
private boolean dialpadChooserVisible() {
return mDialpadChooser.getVisibility() == View.VISIBLE;
}
/**
* Simple list adapter, binding to an icon + text label for each item in the
* "dialpad chooser" list.
*/
private static class DialpadChooserAdapter extends BaseAdapter {
private LayoutInflater mInflater;
// Simple struct for a single "choice" item.
static class ChoiceItem {
String text;
Bitmap icon;
int id;
public ChoiceItem(String s, Bitmap b, int i) {
text = s;
icon = b;
id = i;
}
}
// IDs for the possible "choices":
static final int DIALPAD_CHOICE_USE_DTMF_DIALPAD = 101;
static final int DIALPAD_CHOICE_RETURN_TO_CALL = 102;
static final int DIALPAD_CHOICE_ADD_NEW_CALL = 103;
private static final int NUM_ITEMS = 3;
private ChoiceItem mChoiceItems[] = new ChoiceItem[NUM_ITEMS];
public DialpadChooserAdapter(Context context) {
// Cache the LayoutInflate to avoid asking for a new one each time.
mInflater = LayoutInflater.from(context);
// Initialize the possible choices.
// TODO: could this be specified entirely in XML?
// - "Use touch tone keypad"
mChoiceItems[0] = new ChoiceItem(
context.getString(R.string.dialer_useDtmfDialpad),
BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_dialer_fork_tt_keypad),
DIALPAD_CHOICE_USE_DTMF_DIALPAD);
// - "Return to call in progress"
mChoiceItems[1] = new ChoiceItem(
context.getString(R.string.dialer_returnToInCallScreen),
BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_dialer_fork_current_call),
DIALPAD_CHOICE_RETURN_TO_CALL);
// - "Add call"
mChoiceItems[2] = new ChoiceItem(
context.getString(R.string.dialer_addAnotherCall),
BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_dialer_fork_add_call),
DIALPAD_CHOICE_ADD_NEW_CALL);
}
public int getCount() {
return NUM_ITEMS;
}
/**
* Return the ChoiceItem for a given position.
*/
public Object getItem(int position) {
return mChoiceItems[position];
}
/**
* Return a unique ID for each possible choice.
*/
public long getItemId(int position) {
return position;
}
/**
* Make a view for each row.
*/
public View getView(int position, View convertView, ViewGroup parent) {
// When convertView is non-null, we can reuse it (there's no need
// to reinflate it.)
if (convertView == null) {
convertView = mInflater.inflate(
R.layout.dialpad_chooser_list_item, null);
}
TextView text = (TextView) convertView.findViewById(R.id.text);
text.setText(mChoiceItems[position].text);
ImageView icon = (ImageView) convertView.findViewById(R.id.icon);
icon.setImageBitmap(mChoiceItems[position].icon);
return convertView;
}
}
/**
* Handle clicks from the dialpad chooser.
*/
public void onItemClick(AdapterView parent, View v, int position, long id) {
DialpadChooserAdapter.ChoiceItem item = (DialpadChooserAdapter.ChoiceItem) parent
.getItemAtPosition(position);
int itemId = item.id;
switch (itemId) {
case DialpadChooserAdapter.DIALPAD_CHOICE_USE_DTMF_DIALPAD:
// Log.i(TAG, "DIALPAD_CHOICE_USE_DTMF_DIALPAD");
// Fire off an intent to go back to the in-call UI
// with the dialpad visible.
returnToInCallScreen(true);
break;
case DialpadChooserAdapter.DIALPAD_CHOICE_RETURN_TO_CALL:
// Log.i(TAG, "DIALPAD_CHOICE_RETURN_TO_CALL");
// Fire off an intent to go back to the in-call UI
// (with the dialpad hidden).
returnToInCallScreen(false);
break;
case DialpadChooserAdapter.DIALPAD_CHOICE_ADD_NEW_CALL:
// Log.i(TAG, "DIALPAD_CHOICE_ADD_NEW_CALL");
// Ok, guess the user really did want to be here (in the
// regular Dialer) after all. Bring back the normal Dialer UI.
showDialpadChooser(false);
break;
default:
Log.w(TAG, "onItemClick: unexpected itemId: " + itemId);
break;
}
}
/**
* Returns to the in-call UI (where there's presumably a call in progress)
* in response to the user selecting "use touch tone keypad" or
* "return to call" from the dialpad chooser.
*/
private void returnToInCallScreen(boolean showDialpad) {
try {
ITelephony phone = ITelephony.Stub.asInterface(ServiceManager
.checkService("phone"));
if (phone != null)
phone.showCallScreenWithDialpad(showDialpad);
} catch (RemoteException e) {
Log.w(TAG, "phone.showCallScreenWithDialpad() failed", e);
}
// Finally, finish() ourselves so that we don't stay on the
// activity stack.
// Note that we do this whether or not the showCallScreenWithDialpad()
// call above had any effect or not! (That call is a no-op if the
// phone is idle, which can happen if the current call ends while
// the dialpad chooser is up. In this case we can't show the
// InCallScreen, and there's no point staying here in the Dialer,
// so we just take the user back where he came from...)
finish();
}
/**
* @return true if the phone is "in use", meaning that at least one line is
* active (ie. off hook or ringing or dialing).
*/
private boolean phoneIsInUse() {
boolean phoneInUse = false;
try {
ITelephony phone = ITelephony.Stub.asInterface(ServiceManager
.checkService("phone"));
if (phone != null)
phoneInUse = !phone.isIdle();
} catch (RemoteException e) {
Log.w(TAG, "phone.isIdle() failed", e);
}
return phoneInUse;
}
/**
* @return true if the phone is a CDMA phone type
*/
private boolean phoneIsCdma() {
boolean isCdma = false;
try {
ITelephony phone = ITelephony.Stub.asInterface(ServiceManager
.checkService("phone"));
if (phone != null) {
isCdma = (phone.getActivePhoneType() == TelephonyManager.PHONE_TYPE_CDMA);
}
} catch (RemoteException e) {
Log.w(TAG, "phone.getActivePhoneType() failed", e);
}
return isCdma;
}
/**
* @return true if the phone state is OFFHOOK
*/
private boolean phoneIsOffhook() {
boolean phoneOffhook = false;
try {
ITelephony phone = ITelephony.Stub.asInterface(ServiceManager
.checkService("phone"));
if (phone != null)
phoneOffhook = phone.isOffhook();
} catch (RemoteException e) {
Log.w(TAG, "phone.isOffhook() failed", e);
}
return phoneOffhook;
}
/**
* Triggers haptic feedback (if enabled) for dialer key presses.
*/
private synchronized void vibrate() {
if (!mVibrateOn) {
return;
}
if (mVibrator == null) {
mVibrator = (Vibrator) this.getSystemService(VIBRATOR_SERVICE);
// new Vibrator();
}
mVibrator.vibrate(mVibratePattern, VIBRATE_NO_REPEAT);
}
/**
* Returns true whenever any one of the options from the menu is selected.
* Code changes to support dialpad options
*/
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_2S_PAUSE:
updateDialString(",");
return true;
case MENU_WAIT:
updateDialString(";");
return true;
}
return false;
}
/**
* Updates the dial string (mDigits) after inserting a Pause character (,)
* or Wait character (;).
*/
private void updateDialString(String newDigits) {
int selectionStart;
int selectionEnd;
// SpannableStringBuilder editable_text = new
// SpannableStringBuilder(mDigits.getText());
int anchor = mDigits.getSelectionStart();
int point = mDigits.getSelectionEnd();
selectionStart = Math.min(anchor, point);
selectionEnd = Math.max(anchor, point);
Editable digits = mDigits.getText();
if (selectionStart != -1) {
if (selectionStart == selectionEnd) {
// then there is no selection. So insert the pause at this
// position and update the mDigits.
digits.replace(selectionStart, selectionStart, newDigits);
} else {
digits.replace(selectionStart, selectionEnd, newDigits);
// Unselect: back to a regular cursor, just pass the character
// inserted.
mDigits.setSelection(selectionStart + 1);
}
} else {
int len = mDigits.length();
digits.replace(len, len, newDigits);
}
}
/**
* Update the enabledness of the "Dial" and "Backspace" buttons if
* applicable.
*/
private void updateDialAndDeleteButtonStateEnabledAttr() {
final boolean notEmpty = mDigits.length() != 0;
// If we're already on a CDMA call, then we want to enable the Call
// button
if (phoneIsCdma() && phoneIsOffhook()) {
if (mDialButton != null) {
mDialButton.setEnabled(true);
}
} else {
if (mDialButton != null) {
mDialButton.setEnabled(notEmpty);
}
}
mDelete.setEnabled(notEmpty);
}
/**
* Check if voicemail is enabled/accessible.
*/
private void initVoicemailButton() {
boolean hasVoicemail = false;
try {
hasVoicemail = ((TelephonyManager) getSystemService(TELEPHONY_SERVICE))
.getVoiceMailNumber() != null;
} catch (SecurityException se) {
// Possibly no READ_PHONE_STATE privilege.
}
mVoicemailButton = mVoicemailDialAndDeleteRow
.findViewById(R.id.voicemailButton);
if (hasVoicemail) {
mVoicemailButton.setOnClickListener(this);
} else {
mVoicemailButton.setEnabled(false);
}
}
/**
* Initialize the vibration parameters.
*
* @param r
* The Resources with the vibration parameters.
*/
private void initVibrationPattern(Resources r) {
int[] pattern = null;
try {
mVibrateOn = r
.getBoolean(R.bool.config_enable_dialer_key_vibration);
pattern = r
.getIntArray(com.android.internal.R.array.config_virtualKeyVibePattern);
if (null == pattern) {
Log.e(TAG, "Vibrate pattern is null.");
mVibrateOn = false;
}
} catch (Resources.NotFoundException nfe) {
Log.e(TAG, "Vibrate control bool or pattern missing.", nfe);
mVibrateOn = false;
}
if (!mVibrateOn) {
return;
}
// int[] to long[] conversion.
mVibratePattern = new long[pattern.length];
for (int i = 0; i < pattern.length; i++) {
mVibratePattern[i] = pattern[i];
}
}
/**
* This function return true if Wait menu item can be shown otherwise
* returns false. Assumes the passed string is non-empty and the 0th index
* check is not required.
*/
private boolean showWait(int start, int end, String digits) {
if (start == end) {
// visible false in this case
if (start > digits.length())
return false;
// preceding char is ';', so visible should be false
if (digits.charAt(start - 1) == ';')
return false;
// next char is ';', so visible should be false
if ((digits.length() > start) && (digits.charAt(start) == ';'))
return false;
} else {
// visible false in this case
if (start > digits.length() || end > digits.length())
return false;
// In this case we need to just check for ';' preceding to start
// or next to end
if (digits.charAt(start - 1) == ';')
return false;
}
return true;
}
}