src/com/android/stk/StkInputActivity.java - platform/packages/apps/Stk - Git at Google

 /*
  * 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 com.android.stk;

 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.drawable.BitmapDrawable;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.text.Editable;
 import android.text.InputFilter;
 import android.text.TextWatcher;
 import android.text.method.PasswordTransformationMethod;
 import android.view.KeyEvent;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.Window;
 import android.widget.Button;
 import android.widget.TextView;
 import android.widget.EditText;
 import android.widget.TextView.BufferType;

 import com.android.internal.telephony.cat.FontSize;
 import com.android.internal.telephony.cat.Input;

 /**
  * Display a request for a text input a long with a text edit form.
  */
 public class StkInputActivity extends Activity implements View.OnClickListener,
         TextWatcher {

     // Members
     private int mState;
     private Context mContext;
     private EditText mTextIn = null;
     private TextView mPromptView = null;
     private View mYesNoLayout = null;
     private View mNormalLayout = null;
     private Input mStkInput = null;

     // Constants
     private static final int STATE_TEXT = 1;
     private static final int STATE_YES_NO = 2;

     static final String YES_STR_RESPONSE = "YES";
     static final String NO_STR_RESPONSE = "NO";

     // Font size factor values.
     static final float NORMAL_FONT_FACTOR = 1;
     static final float LARGE_FONT_FACTOR = 2;
     static final float SMALL_FONT_FACTOR = (1 / 2);

     // message id for time out
     private static final int MSG_ID_TIMEOUT = 1;

     Handler mTimeoutHandler = new Handler() {
         @Override
         public void handleMessage(Message msg) {
             switch(msg.what) {
             case MSG_ID_TIMEOUT:
                 //mAcceptUsersInput = false;
                 sendResponse(StkAppService.RES_ID_TIMEOUT);
                 finish();
                 break;
             }
         }
     };

     // Click listener to handle buttons press..
     public void onClick(View v) {
         String input = null;

         switch (v.getId()) {
         case R.id.button_ok:
             // Check that text entered is valid .
             if (!verfiyTypedText()) {
                 return;
             }
             input = mTextIn.getText().toString();
             break;
         // Yes/No layout buttons.
         case R.id.button_yes:
             input = YES_STR_RESPONSE;
             break;
         case R.id.button_no:
             input = NO_STR_RESPONSE;
             break;
         }

         sendResponse(StkAppService.RES_ID_INPUT, input, false);
         finish();
     }

     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);

         // Set the layout for this activity.
         requestWindowFeature(Window.FEATURE_LEFT_ICON);
         setContentView(R.layout.stk_input);

         // Initialize members
         mTextIn = (EditText) this.findViewById(R.id.in_text);
         mPromptView = (TextView) this.findViewById(R.id.prompt);

         // Set buttons listeners.
         Button okButton = (Button) findViewById(R.id.button_ok);
         Button yesButton = (Button) findViewById(R.id.button_yes);
         Button noButton = (Button) findViewById(R.id.button_no);

         okButton.setOnClickListener(this);
         yesButton.setOnClickListener(this);
         noButton.setOnClickListener(this);

         mYesNoLayout = findViewById(R.id.yes_no_layout);
         mNormalLayout = findViewById(R.id.normal_layout);

         // Get the calling intent type: text/key, and setup the
         // display parameters.
         Intent intent = getIntent();
         if (intent != null) {
             mStkInput = intent.getParcelableExtra("INPUT");
             if (mStkInput == null) {
                 finish();
             } else {
                 mState = mStkInput.yesNo ? STATE_YES_NO : STATE_TEXT;
                 configInputDisplay();
             }
         } else {
             finish();
         }
         mContext = getBaseContext();
     }

     @Override
     protected void onPostCreate(Bundle savedInstanceState) {
         super.onPostCreate(savedInstanceState);

         mTextIn.addTextChangedListener(this);
     }

     @Override
     public void onResume() {
         super.onResume();

         startTimeOut();
     }

     @Override
     public void onPause() {
         super.onPause();

         cancelTimeOut();
     }

     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         switch (keyCode) {
         case KeyEvent.KEYCODE_BACK:
             sendResponse(StkAppService.RES_ID_BACKWARD, null, false);
             finish();
             break;
         }
         return super.onKeyDown(keyCode, event);
     }

     private void sendResponse(int resId) {
         sendResponse(resId, null, false);
     }

     private void sendResponse(int resId, String input, boolean help) {
         Bundle args = new Bundle();
         args.putInt(StkAppService.OPCODE, StkAppService.OP_RESPONSE);
         args.putInt(StkAppService.RES_ID, resId);
         if (input != null) {
             args.putString(StkAppService.INPUT, input);
         }
         args.putBoolean(StkAppService.HELP, help);
         mContext.startService(new Intent(mContext, StkAppService.class)
                 .putExtras(args));
     }

     @Override
     public boolean onCreateOptionsMenu(android.view.Menu menu) {
         super.onCreateOptionsMenu(menu);
         menu.add(android.view.Menu.NONE, StkApp.MENU_ID_END_SESSION, 1,
                 R.string.menu_end_session);
         menu.add(0, StkApp.MENU_ID_HELP, 2, R.string.help);

         return true;
     }

     @Override
     public boolean onPrepareOptionsMenu(android.view.Menu menu) {
         super.onPrepareOptionsMenu(menu);
         menu.findItem(StkApp.MENU_ID_END_SESSION).setVisible(true);
         menu.findItem(StkApp.MENU_ID_HELP).setVisible(mStkInput.helpAvailable);

         return true;
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
         case StkApp.MENU_ID_END_SESSION:
             sendResponse(StkAppService.RES_ID_END_SESSION);
             finish();
             return true;
         case StkApp.MENU_ID_HELP:
             sendResponse(StkAppService.RES_ID_INPUT, "", true);
             finish();
             return true;
         }
         return super.onOptionsItemSelected(item);
     }

     public void beforeTextChanged(CharSequence s, int start, int count,
             int after) {
     }

     public void onTextChanged(CharSequence s, int start, int before, int count) {
         // Reset timeout.
         startTimeOut();
     }

     public void afterTextChanged(Editable s) {
     }

     private boolean verfiyTypedText() {
         // If not enough input was typed in stay on the edit screen.
         if (mTextIn.getText().length() < mStkInput.minLen) {
             return false;
         }

         return true;
     }

     private void cancelTimeOut() {
         mTimeoutHandler.removeMessages(MSG_ID_TIMEOUT);
     }

     private void startTimeOut() {
         cancelTimeOut();
         mTimeoutHandler.sendMessageDelayed(mTimeoutHandler
                 .obtainMessage(MSG_ID_TIMEOUT), StkApp.UI_TIMEOUT);
     }

     private void configInputDisplay() {
         TextView numOfCharsView = (TextView) findViewById(R.id.num_of_chars);
         TextView inTypeView = (TextView) findViewById(R.id.input_type);

         int inTypeId = R.string.alphabet;

         // set the prompt.
         mPromptView.setText(mStkInput.text);

         // Set input type (alphabet/digit) info close to the InText form.
         if (mStkInput.digitOnly) {
             mTextIn.setKeyListener(StkDigitsKeyListener.getInstance());
             inTypeId = R.string.digits;
         }
         inTypeView.setText(inTypeId);

         if (mStkInput.icon != null) {
             setFeatureDrawable(Window.FEATURE_LEFT_ICON, new BitmapDrawable(
                     mStkInput.icon));
         }

         // Handle specific global and text attributes.
         switch (mState) {
         case STATE_TEXT:
             int maxLen = mStkInput.maxLen;
             int minLen = mStkInput.minLen;
             mTextIn.setFilters(new InputFilter[] {new InputFilter.LengthFilter(
                     maxLen)});

             // Set number of chars info.
             String lengthLimit = String.valueOf(minLen);
             if (maxLen != minLen) {
                 lengthLimit = minLen + " - " + maxLen;
             }
             numOfCharsView.setText(lengthLimit);

             if (!mStkInput.echo) {
                 mTextIn.setTransformationMethod(PasswordTransformationMethod
                         .getInstance());
             }
             // Set default text if present.
             if (mStkInput.defaultText != null) {
                 mTextIn.setText(mStkInput.defaultText);
             } else {
                 // make sure the text is cleared
                 mTextIn.setText("", BufferType.EDITABLE);
             }

             break;
         case STATE_YES_NO:
             // Set display mode - normal / yes-no layout
             mYesNoLayout.setVisibility(View.VISIBLE);
             mNormalLayout.setVisibility(View.GONE);
             break;
         }
     }

     private float getFontSizeFactor(FontSize size) {
         final float[] fontSizes =
             {NORMAL_FONT_FACTOR, LARGE_FONT_FACTOR, SMALL_FONT_FACTOR};

         return fontSizes[size.ordinal()];
     }
 }
	/*
	* 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 com.android.stk;

	import android.app.Activity;
	import android.content.Context;
	import android.content.Intent;
	import android.graphics.drawable.BitmapDrawable;
	import android.os.Bundle;
	import android.os.Handler;
	import android.os.Message;
	import android.text.Editable;
	import android.text.InputFilter;
	import android.text.TextWatcher;
	import android.text.method.PasswordTransformationMethod;
	import android.view.KeyEvent;
	import android.view.MenuItem;
	import android.view.View;
	import android.view.Window;
	import android.widget.Button;
	import android.widget.TextView;
	import android.widget.EditText;
	import android.widget.TextView.BufferType;

	import com.android.internal.telephony.cat.FontSize;
	import com.android.internal.telephony.cat.Input;

	/**
	* Display a request for a text input a long with a text edit form.
	*/
	public class StkInputActivity extends Activity implements View.OnClickListener,
	TextWatcher {

	// Members
	private int mState;
	private Context mContext;
	private EditText mTextIn = null;
	private TextView mPromptView = null;
	private View mYesNoLayout = null;
	private View mNormalLayout = null;
	private Input mStkInput = null;

	// Constants
	private static final int STATE_TEXT = 1;
	private static final int STATE_YES_NO = 2;

	static final String YES_STR_RESPONSE = "YES";
	static final String NO_STR_RESPONSE = "NO";

	// Font size factor values.
	static final float NORMAL_FONT_FACTOR = 1;
	static final float LARGE_FONT_FACTOR = 2;
	static final float SMALL_FONT_FACTOR = (1 / 2);

	// message id for time out
	private static final int MSG_ID_TIMEOUT = 1;

	Handler mTimeoutHandler = new Handler() {
	@Override
	public void handleMessage(Message msg) {
	switch(msg.what) {
	case MSG_ID_TIMEOUT:
	//mAcceptUsersInput = false;
	sendResponse(StkAppService.RES_ID_TIMEOUT);
	finish();
	break;
	}
	}
	};

	// Click listener to handle buttons press..
	public void onClick(View v) {
	String input = null;

	switch (v.getId()) {
	case R.id.button_ok:
	// Check that text entered is valid .
	if (!verfiyTypedText()) {
	return;
	}
	input = mTextIn.getText().toString();
	break;
	// Yes/No layout buttons.
	case R.id.button_yes:
	input = YES_STR_RESPONSE;
	break;
	case R.id.button_no:
	input = NO_STR_RESPONSE;
	break;
	}

	sendResponse(StkAppService.RES_ID_INPUT, input, false);
	finish();
	}

	@Override
	public void onCreate(Bundle icicle) {
	super.onCreate(icicle);

	// Set the layout for this activity.
	requestWindowFeature(Window.FEATURE_LEFT_ICON);
	setContentView(R.layout.stk_input);

	// Initialize members
	mTextIn = (EditText) this.findViewById(R.id.in_text);
	mPromptView = (TextView) this.findViewById(R.id.prompt);

	// Set buttons listeners.
	Button okButton = (Button) findViewById(R.id.button_ok);
	Button yesButton = (Button) findViewById(R.id.button_yes);
	Button noButton = (Button) findViewById(R.id.button_no);

	okButton.setOnClickListener(this);
	yesButton.setOnClickListener(this);
	noButton.setOnClickListener(this);

	mYesNoLayout = findViewById(R.id.yes_no_layout);
	mNormalLayout = findViewById(R.id.normal_layout);

	// Get the calling intent type: text/key, and setup the
	// display parameters.
	Intent intent = getIntent();
	if (intent != null) {
	mStkInput = intent.getParcelableExtra("INPUT");
	if (mStkInput == null) {
	finish();
	} else {
	mState = mStkInput.yesNo ? STATE_YES_NO : STATE_TEXT;
	configInputDisplay();
	}
	} else {
	finish();
	}
	mContext = getBaseContext();
	}

	@Override
	protected void onPostCreate(Bundle savedInstanceState) {
	super.onPostCreate(savedInstanceState);

	mTextIn.addTextChangedListener(this);
	}

	@Override
	public void onResume() {
	super.onResume();

	startTimeOut();
	}

	@Override
	public void onPause() {
	super.onPause();

	cancelTimeOut();
	}

	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
	switch (keyCode) {
	case KeyEvent.KEYCODE_BACK:
	sendResponse(StkAppService.RES_ID_BACKWARD, null, false);
	finish();
	break;
	}
	return super.onKeyDown(keyCode, event);
	}

	private void sendResponse(int resId) {
	sendResponse(resId, null, false);
	}

	private void sendResponse(int resId, String input, boolean help) {
	Bundle args = new Bundle();
	args.putInt(StkAppService.OPCODE, StkAppService.OP_RESPONSE);
	args.putInt(StkAppService.RES_ID, resId);
	if (input != null) {
	args.putString(StkAppService.INPUT, input);
	}
	args.putBoolean(StkAppService.HELP, help);
	mContext.startService(new Intent(mContext, StkAppService.class)
	.putExtras(args));
	}

	@Override
	public boolean onCreateOptionsMenu(android.view.Menu menu) {
	super.onCreateOptionsMenu(menu);
	menu.add(android.view.Menu.NONE, StkApp.MENU_ID_END_SESSION, 1,
	R.string.menu_end_session);
	menu.add(0, StkApp.MENU_ID_HELP, 2, R.string.help);

	return true;
	}

	@Override
	public boolean onPrepareOptionsMenu(android.view.Menu menu) {
	super.onPrepareOptionsMenu(menu);
	menu.findItem(StkApp.MENU_ID_END_SESSION).setVisible(true);
	menu.findItem(StkApp.MENU_ID_HELP).setVisible(mStkInput.helpAvailable);

	return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {
	case StkApp.MENU_ID_END_SESSION:
	sendResponse(StkAppService.RES_ID_END_SESSION);
	finish();
	return true;
	case StkApp.MENU_ID_HELP:
	sendResponse(StkAppService.RES_ID_INPUT, "", true);
	finish();
	return true;
	}
	return super.onOptionsItemSelected(item);
	}

	public void beforeTextChanged(CharSequence s, int start, int count,
	int after) {
	}

	public void onTextChanged(CharSequence s, int start, int before, int count) {
	// Reset timeout.
	startTimeOut();
	}

	public void afterTextChanged(Editable s) {
	}

	private boolean verfiyTypedText() {
	// If not enough input was typed in stay on the edit screen.
	if (mTextIn.getText().length() < mStkInput.minLen) {
	return false;
	}

	return true;
	}

	private void cancelTimeOut() {
	mTimeoutHandler.removeMessages(MSG_ID_TIMEOUT);
	}

	private void startTimeOut() {
	cancelTimeOut();
	mTimeoutHandler.sendMessageDelayed(mTimeoutHandler
	.obtainMessage(MSG_ID_TIMEOUT), StkApp.UI_TIMEOUT);
	}

	private void configInputDisplay() {
	TextView numOfCharsView = (TextView) findViewById(R.id.num_of_chars);
	TextView inTypeView = (TextView) findViewById(R.id.input_type);

	int inTypeId = R.string.alphabet;

	// set the prompt.
	mPromptView.setText(mStkInput.text);

	// Set input type (alphabet/digit) info close to the InText form.
	if (mStkInput.digitOnly) {
	mTextIn.setKeyListener(StkDigitsKeyListener.getInstance());
	inTypeId = R.string.digits;
	}
	inTypeView.setText(inTypeId);

	if (mStkInput.icon != null) {
	setFeatureDrawable(Window.FEATURE_LEFT_ICON, new BitmapDrawable(
	mStkInput.icon));
	}

	// Handle specific global and text attributes.
	switch (mState) {
	case STATE_TEXT:
	int maxLen = mStkInput.maxLen;
	int minLen = mStkInput.minLen;
	mTextIn.setFilters(new InputFilter[] {new InputFilter.LengthFilter(
	maxLen)});

	// Set number of chars info.
	String lengthLimit = String.valueOf(minLen);
	if (maxLen != minLen) {
	lengthLimit = minLen + " - " + maxLen;
	}
	numOfCharsView.setText(lengthLimit);

	if (!mStkInput.echo) {
	mTextIn.setTransformationMethod(PasswordTransformationMethod
	.getInstance());
	}
	// Set default text if present.
	if (mStkInput.defaultText != null) {
	mTextIn.setText(mStkInput.defaultText);
	} else {
	// make sure the text is cleared
	mTextIn.setText("", BufferType.EDITABLE);
	}

	break;
	case STATE_YES_NO:
	// Set display mode - normal / yes-no layout
	mYesNoLayout.setVisibility(View.VISIBLE);
	mNormalLayout.setVisibility(View.GONE);
	break;
	}
	}

	private float getFontSizeFactor(FontSize size) {
	final float[] fontSizes =
	{NORMAL_FONT_FACTOR, LARGE_FONT_FACTOR, SMALL_FONT_FACTOR};

	return fontSizes[size.ordinal()];
	}
	}