src/com/android/phone/CallBarringEditPreference.java - platform/packages/services/Telephony - Git at Google

 /*
  * Copyright (C) 2018 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 static com.android.phone.TimeConsumingPreferenceActivity.RESPONSE_ERROR;

 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.res.TypedArray;
 import android.os.AsyncResult;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.text.method.DigitsKeyListener;
 import android.text.method.PasswordTransformationMethod;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
 import android.widget.EditText;
 import android.widget.TextView;
 import android.widget.Toast;

 import com.android.internal.telephony.CommandsInterface;
 import com.android.internal.telephony.CommandException;
 import com.android.internal.telephony.Phone;
 import com.android.internal.telephony.PhoneFactory;
 import com.android.phone.settings.fdn.EditPinPreference;

 import java.lang.ref.WeakReference;

 /**
  * This preference represents the status of call barring options, enabling/disabling
  * the call barring option will prompt the user for the current password.
  */
 public class CallBarringEditPreference extends EditPinPreference {
     private static final String LOG_TAG = "CallBarringEditPreference";
     private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2);

     private String mFacility;
     boolean mIsActivated = false;
     private CharSequence mEnableText;
     private CharSequence mDisableText;
     private CharSequence mSummaryOn;
     private CharSequence mSummaryOff;
     private int mButtonClicked;
     private final MyHandler mHandler = new MyHandler(this);
     private Phone mPhone;
     private TimeConsumingPreferenceListener mTcpListener;

     private static final int PW_LENGTH = 4;

     /**
      * CallBarringEditPreference constructor.
      *
      * @param context The context of view.
      * @param attrs The attributes of the XML tag that is inflating EditTextPreference.
      */
     public CallBarringEditPreference(Context context, AttributeSet attrs) {
         super(context, attrs);
         // Get the summary settings, use CheckBoxPreference as the standard.
         TypedArray typedArray = context.obtainStyledAttributes(attrs,
                 R.styleable.CheckBoxPreference, 0, 0);
         mSummaryOn = typedArray.getString(R.styleable.CheckBoxPreference_summaryOn);
         mSummaryOff = typedArray.getString(R.styleable.CheckBoxPreference_summaryOff);
         mDisableText = context.getText(R.string.disable);
         mEnableText = context.getText(R.string.enable);
         typedArray.recycle();

         // Get default phone
         mPhone = PhoneFactory.getDefaultPhone();

         typedArray = context.obtainStyledAttributes(attrs,
                 R.styleable.CallBarringEditPreference, 0, R.style.EditPhoneNumberPreference);
         mFacility = typedArray.getString(R.styleable.CallBarringEditPreference_facility);
         typedArray.recycle();
     }

     /**
      * CallBarringEditPreference constructor.
      *
      * @param context The context of view.
      */
     public CallBarringEditPreference(Context context) {
         this(context, null);
     }

     void init(TimeConsumingPreferenceListener listener, boolean skipReading, Phone phone) {
         if (DBG) {
             Log.d(LOG_TAG, "init: phone id = " + phone.getPhoneId());
         }
         mPhone = phone;

         mTcpListener = listener;
         if (!skipReading) {
             // Query call barring status
             mPhone.getCallBarring(mFacility, "", mHandler.obtainMessage(
                     MyHandler.MESSAGE_GET_CALL_BARRING), CommandsInterface.SERVICE_CLASS_VOICE);
             if (mTcpListener != null) {
                 mTcpListener.onStarted(this, true);
             }
         }
     }

     @Override
     public void onClick(DialogInterface dialog, int which) {
         super.onClick(dialog, which);
         mButtonClicked = which;
     }

     @Override
     protected void showDialog(Bundle state) {
         setDialogMessage(getContext().getString(R.string.messageCallBarring));
         super.showDialog(state);
     }

     @Override
     protected void onBindView(View view) {
         super.onBindView(view);

         // Sync the summary view
         TextView summaryView = (TextView) view.findViewById(android.R.id.summary);
         if (summaryView != null) {
             CharSequence sum;
             int vis;

             // Set summary depending upon mode
             if (mIsActivated) {
                 sum = (mSummaryOn == null) ? getSummary() : mSummaryOn;
             } else {
                 sum = (mSummaryOff == null) ? getSummary() : mSummaryOff;
             }

             if (sum != null) {
                 summaryView.setText(sum);
                 vis = View.VISIBLE;
             } else {
                 vis = View.GONE;
             }

             if (vis != summaryView.getVisibility()) {
                 summaryView.setVisibility(vis);
             }
         }
     }

     @Override
     protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
         builder.setPositiveButton(null, null);
         builder.setNeutralButton(mIsActivated ? mDisableText : mEnableText, this);
     }

     @Override
     protected void onBindDialogView(View view) {
         super.onBindDialogView(view);
         // Default the button clicked to be the cancel button.
         mButtonClicked = DialogInterface.BUTTON_NEGATIVE;

         final EditText editText = (EditText) view.findViewById(android.R.id.edit);
         if (editText != null) {
             editText.setSingleLine(true);
             editText.setTransformationMethod(PasswordTransformationMethod.getInstance());
             editText.setKeyListener(DigitsKeyListener.getInstance());

             editText.setVisibility(View.VISIBLE);
         }
     }

     @Override
     protected void onDialogClosed(boolean positiveResult) {
         super.onDialogClosed(positiveResult);
         if (DBG) {
             Log.d(LOG_TAG, "onDialogClosed: mButtonClicked=" + mButtonClicked + ", positiveResult="
                     + positiveResult);
         }
         if (mButtonClicked != DialogInterface.BUTTON_NEGATIVE) {
             String password = getEditText().getText().toString();

             // Check if the password is valid.
             if (password == null || password.length() != PW_LENGTH) {
                 Toast.makeText(getContext(),
                         getContext().getString(R.string.call_barring_right_pwd_number),
                         Toast.LENGTH_SHORT).show();
                 return;
             }

             if (DBG) {
                 Log.d(LOG_TAG, "onDialogClosed: password=" + password);
             }
             // Send set call barring message to RIL layer.
             mPhone.setCallBarring(mFacility, !mIsActivated, password,
                     mHandler.obtainMessage(MyHandler.MESSAGE_SET_CALL_BARRING),
                     CommandsInterface.SERVICE_CLASS_VOICE);
             if (mTcpListener != null) {
                 mTcpListener.onStarted(this, false);
             }
         }
     }

     void handleCallBarringResult(boolean status) {
         mIsActivated = status;
         if (DBG) {
             Log.d(LOG_TAG, "handleCallBarringResult: mIsActivated=" + mIsActivated);
         }
     }

     void updateSummaryText() {
         notifyChanged();
         notifyDependencyChange(shouldDisableDependents());
     }

     @Override
     public boolean shouldDisableDependents() {
         return mIsActivated;
     }

     // Message protocol:
     // what: get vs. set
     // arg1: action -- register vs. disable
     // arg2: get vs. set for the preceding request
     private static class MyHandler extends Handler {
         private static final int MESSAGE_GET_CALL_BARRING = 0;
         private static final int MESSAGE_SET_CALL_BARRING = 1;

         private final WeakReference<CallBarringEditPreference> mCallBarringEditPreference;

         private MyHandler(CallBarringEditPreference callBarringEditPreference) {
             mCallBarringEditPreference =
                     new WeakReference<CallBarringEditPreference>(callBarringEditPreference);
         }

         @Override
         public void handleMessage(Message msg) {
             switch (msg.what) {
                 case MESSAGE_GET_CALL_BARRING:
                     handleGetCallBarringResponse(msg);
                     break;
                 case MESSAGE_SET_CALL_BARRING:
                     handleSetCallBarringResponse(msg);
                     break;
                 default:
                     break;
             }
         }

         // Handle the response message for query CB status.
         private void handleGetCallBarringResponse(Message msg) {
             final CallBarringEditPreference pref = mCallBarringEditPreference.get();
             if (pref == null) {
                 return;
             }

             if (DBG) {
                 Log.d(LOG_TAG, "handleGetCallBarringResponse: done");
             }

             AsyncResult ar = (AsyncResult) msg.obj;

             if (msg.arg2 == MESSAGE_SET_CALL_BARRING) {
                 pref.mTcpListener.onFinished(pref, false);
             } else {
                 pref.mTcpListener.onFinished(pref, true);
             }

             // Unsuccessful query for call barring.
             if (ar.exception != null) {
                 if (DBG) {
                     Log.d(LOG_TAG, "handleGetCallBarringResponse: ar.exception=" + ar.exception);
                 }
                 pref.mTcpListener.onException(pref, (CommandException) ar.exception);
             } else {
                 if (ar.userObj instanceof Throwable) {
                     pref.mTcpListener.onError(pref, RESPONSE_ERROR);
                 }
                 int[] ints = (int[]) ar.result;
                 if (ints.length == 0) {
                     if (DBG) {
                         Log.d(LOG_TAG, "handleGetCallBarringResponse: ar.result.length==0");
                     }
                     pref.setEnabled(false);
                     pref.mTcpListener.onError(pref, RESPONSE_ERROR);
                 } else {
                     pref.handleCallBarringResult(ints[0] != 0);
                     if (DBG) {
                         Log.d(LOG_TAG,
                                 "handleGetCallBarringResponse: CB state successfully queried: "
                                         + ints[0]);
                     }
                 }
             }
             // Update call barring status.
             pref.updateSummaryText();
         }

         // Handle the response message for CB settings.
         private void handleSetCallBarringResponse(Message msg) {
             final CallBarringEditPreference pref = mCallBarringEditPreference.get();
             if (pref == null) {
                 return;
             }

             AsyncResult ar = (AsyncResult) msg.obj;

             if (ar.exception != null || ar.userObj instanceof Throwable) {
                 if (DBG) {
                     Log.d(LOG_TAG, "handleSetCallBarringResponse: ar.exception=" + ar.exception);
                 }
             }
             if (DBG) {
                 Log.d(LOG_TAG, "handleSetCallBarringResponse: re-get call barring option");
             }
             pref.mPhone.getCallBarring(
                     pref.mFacility,
                     "",
                     obtainMessage(MESSAGE_GET_CALL_BARRING, 0, MESSAGE_SET_CALL_BARRING,
                             ar.exception),
                     CommandsInterface.SERVICE_CLASS_VOICE);
         }
     }
 }
	/*
	* Copyright (C) 2018 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 static com.android.phone.TimeConsumingPreferenceActivity.RESPONSE_ERROR;

	import android.app.AlertDialog;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.res.TypedArray;
	import android.os.AsyncResult;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.Message;
	import android.text.method.DigitsKeyListener;
	import android.text.method.PasswordTransformationMethod;
	import android.util.AttributeSet;
	import android.util.Log;
	import android.view.View;
	import android.widget.EditText;
	import android.widget.TextView;
	import android.widget.Toast;

	import com.android.internal.telephony.CommandsInterface;
	import com.android.internal.telephony.CommandException;
	import com.android.internal.telephony.Phone;
	import com.android.internal.telephony.PhoneFactory;
	import com.android.phone.settings.fdn.EditPinPreference;

	import java.lang.ref.WeakReference;

	/**
	* This preference represents the status of call barring options, enabling/disabling
	* the call barring option will prompt the user for the current password.
	*/
	public class CallBarringEditPreference extends EditPinPreference {
	private static final String LOG_TAG = "CallBarringEditPreference";
	private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 2);

	private String mFacility;
	boolean mIsActivated = false;
	private CharSequence mEnableText;
	private CharSequence mDisableText;
	private CharSequence mSummaryOn;
	private CharSequence mSummaryOff;
	private int mButtonClicked;
	private final MyHandler mHandler = new MyHandler(this);
	private Phone mPhone;
	private TimeConsumingPreferenceListener mTcpListener;

	private static final int PW_LENGTH = 4;

	/**
	* CallBarringEditPreference constructor.
	*
	* @param context The context of view.
	* @param attrs The attributes of the XML tag that is inflating EditTextPreference.
	*/
	public CallBarringEditPreference(Context context, AttributeSet attrs) {
	super(context, attrs);
	// Get the summary settings, use CheckBoxPreference as the standard.
	TypedArray typedArray = context.obtainStyledAttributes(attrs,
	R.styleable.CheckBoxPreference, 0, 0);
	mSummaryOn = typedArray.getString(R.styleable.CheckBoxPreference_summaryOn);
	mSummaryOff = typedArray.getString(R.styleable.CheckBoxPreference_summaryOff);
	mDisableText = context.getText(R.string.disable);
	mEnableText = context.getText(R.string.enable);
	typedArray.recycle();

	// Get default phone
	mPhone = PhoneFactory.getDefaultPhone();

	typedArray = context.obtainStyledAttributes(attrs,
	R.styleable.CallBarringEditPreference, 0, R.style.EditPhoneNumberPreference);
	mFacility = typedArray.getString(R.styleable.CallBarringEditPreference_facility);
	typedArray.recycle();
	}

	/**
	* CallBarringEditPreference constructor.
	*
	* @param context The context of view.
	*/
	public CallBarringEditPreference(Context context) {
	this(context, null);
	}

	void init(TimeConsumingPreferenceListener listener, boolean skipReading, Phone phone) {
	if (DBG) {
	Log.d(LOG_TAG, "init: phone id = " + phone.getPhoneId());
	}
	mPhone = phone;

	mTcpListener = listener;
	if (!skipReading) {
	// Query call barring status
	mPhone.getCallBarring(mFacility, "", mHandler.obtainMessage(
	MyHandler.MESSAGE_GET_CALL_BARRING), CommandsInterface.SERVICE_CLASS_VOICE);
	if (mTcpListener != null) {
	mTcpListener.onStarted(this, true);
	}
	}
	}

	@Override
	public void onClick(DialogInterface dialog, int which) {
	super.onClick(dialog, which);
	mButtonClicked = which;
	}

	@Override
	protected void showDialog(Bundle state) {
	setDialogMessage(getContext().getString(R.string.messageCallBarring));
	super.showDialog(state);
	}

	@Override
	protected void onBindView(View view) {
	super.onBindView(view);

	// Sync the summary view
	TextView summaryView = (TextView) view.findViewById(android.R.id.summary);
	if (summaryView != null) {
	CharSequence sum;
	int vis;

	// Set summary depending upon mode
	if (mIsActivated) {
	sum = (mSummaryOn == null) ? getSummary() : mSummaryOn;
	} else {
	sum = (mSummaryOff == null) ? getSummary() : mSummaryOff;
	}

	if (sum != null) {
	summaryView.setText(sum);
	vis = View.VISIBLE;
	} else {
	vis = View.GONE;
	}

	if (vis != summaryView.getVisibility()) {
	summaryView.setVisibility(vis);
	}
	}
	}

	@Override
	protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
	builder.setPositiveButton(null, null);
	builder.setNeutralButton(mIsActivated ? mDisableText : mEnableText, this);
	}

	@Override
	protected void onBindDialogView(View view) {
	super.onBindDialogView(view);
	// Default the button clicked to be the cancel button.
	mButtonClicked = DialogInterface.BUTTON_NEGATIVE;

	final EditText editText = (EditText) view.findViewById(android.R.id.edit);
	if (editText != null) {
	editText.setSingleLine(true);
	editText.setTransformationMethod(PasswordTransformationMethod.getInstance());
	editText.setKeyListener(DigitsKeyListener.getInstance());

	editText.setVisibility(View.VISIBLE);
	}
	}

	@Override
	protected void onDialogClosed(boolean positiveResult) {
	super.onDialogClosed(positiveResult);
	if (DBG) {
	Log.d(LOG_TAG, "onDialogClosed: mButtonClicked=" + mButtonClicked + ", positiveResult="
	+ positiveResult);
	}
	if (mButtonClicked != DialogInterface.BUTTON_NEGATIVE) {
	String password = getEditText().getText().toString();

	// Check if the password is valid.
	if (password == null \|\| password.length() != PW_LENGTH) {
	Toast.makeText(getContext(),
	getContext().getString(R.string.call_barring_right_pwd_number),
	Toast.LENGTH_SHORT).show();
	return;
	}

	if (DBG) {
	Log.d(LOG_TAG, "onDialogClosed: password=" + password);
	}
	// Send set call barring message to RIL layer.
	mPhone.setCallBarring(mFacility, !mIsActivated, password,
	mHandler.obtainMessage(MyHandler.MESSAGE_SET_CALL_BARRING),
	CommandsInterface.SERVICE_CLASS_VOICE);
	if (mTcpListener != null) {
	mTcpListener.onStarted(this, false);
	}
	}
	}

	void handleCallBarringResult(boolean status) {
	mIsActivated = status;
	if (DBG) {
	Log.d(LOG_TAG, "handleCallBarringResult: mIsActivated=" + mIsActivated);
	}
	}

	void updateSummaryText() {
	notifyChanged();
	notifyDependencyChange(shouldDisableDependents());
	}

	@Override
	public boolean shouldDisableDependents() {
	return mIsActivated;
	}

	// Message protocol:
	// what: get vs. set
	// arg1: action -- register vs. disable
	// arg2: get vs. set for the preceding request
	private static class MyHandler extends Handler {
	private static final int MESSAGE_GET_CALL_BARRING = 0;
	private static final int MESSAGE_SET_CALL_BARRING = 1;

	private final WeakReference<CallBarringEditPreference> mCallBarringEditPreference;

	private MyHandler(CallBarringEditPreference callBarringEditPreference) {
	mCallBarringEditPreference =
	new WeakReference<CallBarringEditPreference>(callBarringEditPreference);
	}

	@Override
	public void handleMessage(Message msg) {
	switch (msg.what) {
	case MESSAGE_GET_CALL_BARRING:
	handleGetCallBarringResponse(msg);
	break;
	case MESSAGE_SET_CALL_BARRING:
	handleSetCallBarringResponse(msg);
	break;
	default:
	break;
	}
	}

	// Handle the response message for query CB status.
	private void handleGetCallBarringResponse(Message msg) {
	final CallBarringEditPreference pref = mCallBarringEditPreference.get();
	if (pref == null) {
	return;
	}

	if (DBG) {
	Log.d(LOG_TAG, "handleGetCallBarringResponse: done");
	}

	AsyncResult ar = (AsyncResult) msg.obj;

	if (msg.arg2 == MESSAGE_SET_CALL_BARRING) {
	pref.mTcpListener.onFinished(pref, false);
	} else {
	pref.mTcpListener.onFinished(pref, true);
	}

	// Unsuccessful query for call barring.
	if (ar.exception != null) {
	if (DBG) {
	Log.d(LOG_TAG, "handleGetCallBarringResponse: ar.exception=" + ar.exception);
	}
	pref.mTcpListener.onException(pref, (CommandException) ar.exception);
	} else {
	if (ar.userObj instanceof Throwable) {
	pref.mTcpListener.onError(pref, RESPONSE_ERROR);
	}
	int[] ints = (int[]) ar.result;
	if (ints.length == 0) {
	if (DBG) {
	Log.d(LOG_TAG, "handleGetCallBarringResponse: ar.result.length==0");
	}
	pref.setEnabled(false);
	pref.mTcpListener.onError(pref, RESPONSE_ERROR);
	} else {
	pref.handleCallBarringResult(ints[0] != 0);
	if (DBG) {
	Log.d(LOG_TAG,
	"handleGetCallBarringResponse: CB state successfully queried: "
	+ ints[0]);
	}
	}
	}
	// Update call barring status.
	pref.updateSummaryText();
	}

	// Handle the response message for CB settings.
	private void handleSetCallBarringResponse(Message msg) {
	final CallBarringEditPreference pref = mCallBarringEditPreference.get();
	if (pref == null) {
	return;
	}

	AsyncResult ar = (AsyncResult) msg.obj;

	if (ar.exception != null \|\| ar.userObj instanceof Throwable) {
	if (DBG) {
	Log.d(LOG_TAG, "handleSetCallBarringResponse: ar.exception=" + ar.exception);
	}
	}
	if (DBG) {
	Log.d(LOG_TAG, "handleSetCallBarringResponse: re-get call barring option");
	}
	pref.mPhone.getCallBarring(
	pref.mFacility,
	"",
	obtainMessage(MESSAGE_GET_CALL_BARRING, 0, MESSAGE_SET_CALL_BARRING,
	ar.exception),
	CommandsInterface.SERVICE_CLASS_VOICE);
	}
	}
	}