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diff --git a/src/com/android/phone/EmergencyDialer.java b/src/com/android/phone/EmergencyDialer.java
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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.phone;
-
-import android.app.Activity;
-import android.app.AlertDialog;
-import android.app.Dialog;
-import android.app.StatusBarManager;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.res.Resources;
-import android.media.AudioManager;
-import android.media.ToneGenerator;
-import android.net.Uri;
-import android.os.Bundle;
-import android.provider.Settings;
-import android.telephony.PhoneNumberUtils;
-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.MotionEvent;
-import android.view.View;
-import android.view.WindowManager;
-import android.view.accessibility.AccessibilityManager;
-import android.widget.EditText;
-
-import com.android.phone.common.HapticFeedback;
-
-
-/**
- * EmergencyDialer is a special dialer that is used ONLY for dialing emergency calls.
- *
- * It's a simplified version of the regular dialer (i.e. the TwelveKeyDialer
- * activity from apps/Contacts) that:
- * 1. Allows ONLY emergency calls to be dialed
- * 2. Disallows voicemail functionality
- * 3. Uses the FLAG_SHOW_WHEN_LOCKED window manager flag to allow this
- * activity to stay in front of the keyguard.
- *
- * TODO: Even though this is an ultra-simplified version of the normal
- * dialer, there's still lots of code duplication between this class and
- * the TwelveKeyDialer class from apps/Contacts. Could the common code be
- * moved into a shared base class that would live in the framework?
- * Or could we figure out some way to move *this* class into apps/Contacts
- * also?
- */
-public class EmergencyDialer extends Activity implements View.OnClickListener,
- View.OnLongClickListener, View.OnHoverListener, View.OnKeyListener, TextWatcher {
- // Keys used with onSaveInstanceState().
- private static final String LAST_NUMBER = "lastNumber";
-
- // Intent action for this activity.
- public static final String ACTION_DIAL = "com.android.phone.EmergencyDialer.DIAL";
-
- // List of dialer button IDs.
- private static final int[] DIALER_KEYS = new int[] {
- R.id.one, R.id.two, R.id.three,
- R.id.four, R.id.five, R.id.six,
- R.id.seven, R.id.eight, R.id.nine,
- R.id.star, R.id.zero, R.id.pound };
-
- // Debug constants.
- private static final boolean DBG = false;
- private static final String LOG_TAG = "EmergencyDialer";
-
- private PhoneGlobals mApp;
- private StatusBarManager mStatusBarManager;
- private AccessibilityManager mAccessibilityManager;
-
- /** 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_DTMF;
-
- private static final int BAD_EMERGENCY_NUMBER_DIALOG = 0;
-
- private static final int USER_ACTIVITY_TIMEOUT_WHEN_NO_PROX_SENSOR = 15000; // millis
-
- EditText mDigits;
- private View mDialButton;
- private View mDelete;
-
- private ToneGenerator mToneGenerator;
- private Object mToneGeneratorLock = new Object();
-
- // determines if we want to playback local DTMF tones.
- private boolean mDTMFToneEnabled;
-
- // Haptic feedback (vibration) for dialer key presses.
- private HapticFeedback mHaptic = new HapticFeedback();
-
- // close activity when screen turns off
- private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
- @Override
- public void onReceive(Context context, Intent intent) {
- if (Intent.ACTION_SCREEN_OFF.equals(intent.getAction())) {
- finish();
- }
- }
- };
-
- private String mLastNumber; // last number we tried to dial. Used to restore error dialog.
-
- @Override
- public void beforeTextChanged(CharSequence s, int start, int count, int after) {
- // Do nothing
- }
-
- @Override
- public void onTextChanged(CharSequence input, int start, int before, int changeCount) {
- // Do nothing
- }
-
- @Override
- public void afterTextChanged(Editable input) {
- // Check for special sequences, in particular the "**04" or "**05"
- // sequences that allow you to enter PIN or PUK-related codes.
- //
- // But note we *don't* allow most other special sequences here,
- // like "secret codes" (*#*#<code>#*#*) or IMEI display ("*#06#"),
- // since those shouldn't be available if the device is locked.
- //
- // So we call SpecialCharSequenceMgr.handleCharsForLockedDevice()
- // here, not the regular handleChars() method.
- if (SpecialCharSequenceMgr.handleCharsForLockedDevice(this, input.toString(), this)) {
- // A special sequence was entered, clear the digits
- mDigits.getText().clear();
- }
-
- updateDialAndDeleteButtonStateEnabledAttr();
- }
-
- @Override
- protected void onCreate(Bundle icicle) {
- super.onCreate(icicle);
-
- mApp = PhoneGlobals.getInstance();
- mStatusBarManager = (StatusBarManager) getSystemService(Context.STATUS_BAR_SERVICE);
- mAccessibilityManager = (AccessibilityManager) getSystemService(ACCESSIBILITY_SERVICE);
-
- // Allow this activity to be displayed in front of the keyguard / lockscreen.
- WindowManager.LayoutParams lp = getWindow().getAttributes();
- lp.flags |= WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
- if (!mApp.proximitySensorModeEnabled()) {
- // When no proximity sensor is available, use a shorter timeout.
- lp.userActivityTimeout = USER_ACTIVITY_TIMEOUT_WHEN_NO_PROX_SENSOR;
- }
- getWindow().setAttributes(lp);
-
- setContentView(R.layout.emergency_dialer);
-
- mDigits = (EditText) findViewById(R.id.digits);
- mDigits.setKeyListener(DialerKeyListener.getInstance());
- mDigits.setOnClickListener(this);
- mDigits.setOnKeyListener(this);
- mDigits.setLongClickable(false);
- if (mAccessibilityManager.isEnabled()) {
- // The text view must be selected to send accessibility events.
- mDigits.setSelected(true);
- }
- maybeAddNumberFormatting();
-
- // Check for the presence of the keypad
- View view = findViewById(R.id.one);
- if (view != null) {
- setupKeypad();
- }
-
- mDelete = findViewById(R.id.deleteButton);
- mDelete.setOnClickListener(this);
- mDelete.setOnLongClickListener(this);
-
- mDialButton = findViewById(R.id.dialButton);
-
- // Check whether we should show the onscreen "Dial" button and co.
- Resources res = getResources();
- if (res.getBoolean(R.bool.config_show_onscreen_dial_button)) {
- mDialButton.setOnClickListener(this);
- } else {
- mDialButton.setVisibility(View.GONE);
- }
-
- if (icicle != null) {
- super.onRestoreInstanceState(icicle);
- }
-
- // Extract phone number from intent
- Uri data = getIntent().getData();
- if (data != null && (Constants.SCHEME_TEL.equals(data.getScheme()))) {
- String number = PhoneNumberUtils.getNumberFromIntent(getIntent(), this);
- if (number != null) {
- mDigits.setText(number);
- }
- }
-
- // 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 {
- mToneGenerator = new ToneGenerator(DIAL_TONE_STREAM_TYPE, TONE_RELATIVE_VOLUME);
- } catch (RuntimeException e) {
- Log.w(LOG_TAG, "Exception caught while creating local tone generator: " + e);
- mToneGenerator = null;
- }
- }
- }
-
- final IntentFilter intentFilter = new IntentFilter();
- intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
- registerReceiver(mBroadcastReceiver, intentFilter);
-
- try {
- mHaptic.init(this, res.getBoolean(R.bool.config_enable_dialer_key_vibration));
- } catch (Resources.NotFoundException nfe) {
- Log.e(LOG_TAG, "Vibrate control bool missing.", nfe);
- }
- }
-
- @Override
- protected void onDestroy() {
- super.onDestroy();
- synchronized (mToneGeneratorLock) {
- if (mToneGenerator != null) {
- mToneGenerator.release();
- mToneGenerator = null;
- }
- }
- unregisterReceiver(mBroadcastReceiver);
- }
-
- @Override
- protected void onRestoreInstanceState(Bundle icicle) {
- mLastNumber = icicle.getString(LAST_NUMBER);
- }
-
- @Override
- protected void onSaveInstanceState(Bundle outState) {
- super.onSaveInstanceState(outState);
- outState.putString(LAST_NUMBER, mLastNumber);
- }
-
- /**
- * Explicitly turn off number formatting, since it gets in the way of the emergency
- * number detector
- */
- protected void maybeAddNumberFormatting() {
- // Do nothing.
- }
-
- @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
- for (int id : DIALER_KEYS) {
- final View key = findViewById(id);
- key.setOnClickListener(this);
- key.setOnHoverListener(this);
- }
-
- View view = findViewById(R.id.zero);
- view.setOnLongClickListener(this);
- }
-
- /**
- * handle key events
- */
- @Override
- public boolean onKeyDown(int keyCode, KeyEvent event) {
- switch (keyCode) {
- // Happen when there's a "Call" hard button.
- case KeyEvent.KEYCODE_CALL: {
- if (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.onKeyDown(keyCode, event);
- }
-
- private void keyPressed(int keyCode) {
- mHaptic.vibrate();
- KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, keyCode);
- mDigits.onKeyDown(keyCode, event);
- }
-
- @Override
- public boolean onKey(View view, int keyCode, KeyEvent event) {
- switch (view.getId()) {
- case R.id.digits:
- // Happen when "Done" button of the IME is pressed. This can happen when this
- // Activity is forced into landscape mode due to a desk dock.
- if (keyCode == KeyEvent.KEYCODE_ENTER
- && event.getAction() == KeyEvent.ACTION_UP) {
- placeCall();
- return true;
- }
- break;
- }
- return false;
- }
-
- @Override
- 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: {
- mHaptic.vibrate(); // Vibrate here too, just like we do for the regular keys
- placeCall();
- return;
- }
- case R.id.digits: {
- if (mDigits.length() != 0) {
- mDigits.setCursorVisible(true);
- }
- return;
- }
- }
- }
-
- /**
- * Implemented for {@link android.view.View.OnHoverListener}. Handles touch
- * events for accessibility when touch exploration is enabled.
- */
- @Override
- public boolean onHover(View v, MotionEvent event) {
- // When touch exploration is turned on, lifting a finger while inside
- // the button's hover target bounds should perform a click action.
- if (mAccessibilityManager.isEnabled()
- && mAccessibilityManager.isTouchExplorationEnabled()) {
-
- switch (event.getActionMasked()) {
- case MotionEvent.ACTION_HOVER_ENTER:
- // Lift-to-type temporarily disables double-tap activation.
- v.setClickable(false);
- break;
- case MotionEvent.ACTION_HOVER_EXIT:
- final int left = v.getPaddingLeft();
- final int right = (v.getWidth() - v.getPaddingRight());
- final int top = v.getPaddingTop();
- final int bottom = (v.getHeight() - v.getPaddingBottom());
- final int x = (int) event.getX();
- final int y = (int) event.getY();
- if ((x > left) && (x < right) && (y > top) && (y < bottom)) {
- v.performClick();
- }
- v.setClickable(true);
- break;
- }
- }
-
- return false;
- }
-
- /**
- * called for long touch events
- */
- @Override
- public boolean onLongClick(View view) {
- int id = view.getId();
- switch (id) {
- case R.id.deleteButton: {
- mDigits.getText().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.zero: {
- keyPressed(KeyEvent.KEYCODE_PLUS);
- return true;
- }
- }
- return false;
- }
-
- @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;
-
- // Retrieve the haptic feedback setting.
- mHaptic.checkSystemSetting();
-
- // 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 {
- mToneGenerator = new ToneGenerator(AudioManager.STREAM_DTMF,
- TONE_RELATIVE_VOLUME);
- } catch (RuntimeException e) {
- Log.w(LOG_TAG, "Exception caught while creating local tone generator: " + e);
- mToneGenerator = null;
- }
- }
- }
-
- // Disable the status bar and set the poke lock timeout to medium.
- // There is no need to do anything with the wake lock.
- if (DBG) Log.d(LOG_TAG, "disabling status bar, set to long timeout");
- mStatusBarManager.disable(StatusBarManager.DISABLE_EXPAND);
-
- updateDialAndDeleteButtonStateEnabledAttr();
- }
-
- @Override
- public void onPause() {
- // Reenable the status bar and set the poke lock timeout to default.
- // There is no need to do anything with the wake lock.
- if (DBG) Log.d(LOG_TAG, "reenabling status bar and closing the dialer");
- mStatusBarManager.disable(StatusBarManager.DISABLE_NONE);
-
- super.onPause();
-
- synchronized (mToneGeneratorLock) {
- if (mToneGenerator != null) {
- mToneGenerator.release();
- mToneGenerator = null;
- }
- }
- }
-
- /**
- * place the call, but check to make sure it is a viable number.
- */
- private void placeCall() {
- mLastNumber = mDigits.getText().toString();
- if (PhoneNumberUtils.isLocalEmergencyNumber(mLastNumber, this)) {
- if (DBG) Log.d(LOG_TAG, "placing call to " + mLastNumber);
-
- // place the call if it is a valid number
- if (mLastNumber == null || !TextUtils.isGraphic(mLastNumber)) {
- // There is no number entered.
- playTone(ToneGenerator.TONE_PROP_NACK);
- return;
- }
- Intent intent = new Intent(Intent.ACTION_CALL_EMERGENCY);
- intent.setData(Uri.fromParts(Constants.SCHEME_TEL, mLastNumber, null));
- intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- startActivity(intent);
- finish();
- } else {
- if (DBG) Log.d(LOG_TAG, "rejecting bad requested number " + mLastNumber);
-
- // erase the number and throw up an alert dialog.
- mDigits.getText().delete(0, mDigits.getText().length());
- showDialog(BAD_EMERGENCY_NUMBER_DIALOG);
- }
- }
-
- /**
- * 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(LOG_TAG, "playTone: mToneGenerator == null, tone: " + tone);
- return;
- }
-
- // Start the new tone (will stop any playing tone)
- mToneGenerator.startTone(tone, TONE_LENGTH_MS);
- }
- }
-
- private CharSequence createErrorMessage(String number) {
- if (!TextUtils.isEmpty(number)) {
- return getString(R.string.dial_emergency_error, mLastNumber);
- } else {
- return getText(R.string.dial_emergency_empty_error).toString();
- }
- }
-
- @Override
- protected Dialog onCreateDialog(int id) {
- AlertDialog dialog = null;
- if (id == BAD_EMERGENCY_NUMBER_DIALOG) {
- // construct dialog
- dialog = new AlertDialog.Builder(this)
- .setTitle(getText(R.string.emergency_enable_radio_dialog_title))
- .setMessage(createErrorMessage(mLastNumber))
- .setPositiveButton(R.string.ok, null)
- .setCancelable(true).create();
-
- // blur stuff behind the dialog
- dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
- }
- return dialog;
- }
-
- @Override
- protected void onPrepareDialog(int id, Dialog dialog) {
- super.onPrepareDialog(id, dialog);
- if (id == BAD_EMERGENCY_NUMBER_DIALOG) {
- AlertDialog alert = (AlertDialog) dialog;
- alert.setMessage(createErrorMessage(mLastNumber));
- }
- }
-
- /**
- * Update the enabledness of the "Dial" and "Backspace" buttons if applicable.
- */
- private void updateDialAndDeleteButtonStateEnabledAttr() {
- final boolean notEmpty = mDigits.length() != 0;
-
- mDialButton.setEnabled(notEmpty);
- mDelete.setEnabled(notEmpty);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 06:29:02 +0000