Solved

On Screen Keyboard: Need extra functionalities

Posted on 2008-11-01
2
285 Views
Last Modified: 2012-05-05
Hey Guys,

I made my On screen keyboard finally. The JS file and the HTML files are given below. the attached files are the images for the keyboard.

Now i wan't to add three functionalities in the keyboard and i'm confused in how to do it :

1. I need to show the Number keys only and hide rest of the keyboard at certain places. So, how can i do it?

2. I need to give a PRESSED effect to the keys. As in if i a key is entered then it should show that it has been pressed .

3. Continuing on the Pressed effect : When the CAPSLOCK is turned on, the key should remain pressed until it is turned off.

Hope i'm clear guys.

KEYBOARD.JS
 
var specialChar = new Array(new Array("CAPS",""),new Array("ET",""),new Array("#",""));
var standardKeys = new Array(
new Array("1","2","3","4","5","6","7","8","9","0","<img src='bkp.jpg' height='15' width='30'>"),
new Array("Q","W","E","R","T","Y","U","I","O","P"),
new Array("CAPS","A","S","D","F","G","H","J","K","L","Enter"),
new Array("Z","X","C","V","B","N","M"," "));
var currentKey = 0;
var currentRow = 0;
var capsStatus = "OFF";
var inputField;
var keyboardStatus = false;
function generateKeyButton(keyText){
	if(keyText == " "){
	return "<table  cellspacing =\"0\" cellpadding=\"0\" id=\"keyTable_"+keyText+"\"> <tr> <td><img src=\"a/th1_tl.gif\"> </td> <td background=\"a/th1_top.gif\"> </td> <td> <img src=\"a/th1_tr.gif\"> </td> </tr> <tr> <td background=\"a/th1_ls.gif\"> </td><td>	<table width=\"165\" height=\"15\" cellspacing =\"0\" cellpadding=\"0\">	<tr>	<td id=\"key_"+keyText+"\" ><center>"+keyText+"</center>	</td>	</tr>	</table> </td><td background=\"a/th1_rs.gif\"> </td> </tr> <tr> <td>  <img src=\"a/th1_bl.gif\">  </td> <td background=\"a/th1_btm.gif\"> </td><td>  <img src=\"a/th1_br.gif\"> </td> </tr> </table>";
	}else{
	return "<table  cellspacing =\"0\" cellpadding=\"0\" id=\"keyTable_"+keyText+"\"> <tr> <td><img src=\"a/th1_tl.gif\"> </td> <td background=\"a/th1_top.gif\"> </td> <td> <img src=\"a/th1_tr.gif\"> </td> </tr> <tr> <td background=\"a/th1_ls.gif\"> </td><td>	<table width=\"15\" height=\"15\" cellspacing =\"0\" cellpadding=\"0\">	<tr>	<td id=\"key_"+keyText+"\" ><center>"+keyText+"</center>	</td>	</tr>	</table> </td><td background=\"a/th1_rs.gif\"> </td> </tr> <tr> <td>  <img src=\"a/th1_bl.gif\">  </td> <td background=\"a/th1_btm.gif\"> </td><td>  <img src=\"a/th1_br.gif\"> </td> </tr> </table>";
	}
}
 
function generateFullKeyboard(){
	var keyBoardStr = "<table  cellpadding=\"0\" cellspacing=\"1\" border=\"0\"><tr><td ><table cellpadding=\"0\" cellspacing=\"0\" >";
	for(var keyIndex=0;keyIndex<standardKeys.length;keyIndex++){
		keyBoardStr = keyBoardStr + "<tr><td><table   cellpadding=\"0\" cellspacing=\"1\" ><tr>";
		for(index2=0;index2<standardKeys[keyIndex].length;index2++){
			if((index2==0 && keyIndex==0) || (index2==0 && keyIndex==1))
			keyBoardStr = keyBoardStr +	"<td><table  cellspacing =\"0\" cellpadding=\"0\" > <tr> <td><img src=\"a/th1_tl.gif\"> </td> <td background=\"a/th1_top.gif\"> </td> <td> <img src=\"a/th1_tr.gif\"> </td> </tr> <tr> <td background=\"a/th1_ls.gif\"> </td><td>	<table width=\"15\" height=\"15\" cellspacing =\"0\" cellpadding=\"0\">	<tr>	<td ><center>&nbsp;</center>	</td>	</tr>	</table> </td><td background=\"a/th1_rs.gif\"> </td> </tr> <tr> <td>  <img src=\"a/th1_bl.gif\">  </td> <td background=\"a/th1_btm.gif\"> </td><td>  <img src=\"a/th1_br.gif\"> </td> </tr> </table></td><td>" +generateKeyButton(standardKeys[keyIndex][index2]) + "</td>";
			else if((index2==9 && keyIndex==1))
			keyBoardStr = keyBoardStr +	"<td>" +generateKeyButton(standardKeys[keyIndex][index2]) + "</td><td><table  cellspacing =\"0\" cellpadding=\"0\" > <tr> <td><img src=\"a/th1_tl.gif\"> </td> <td background=\"a/th1_top.gif\"> </td> <td> <img src=\"a/th1_tr.gif\"> </td> </tr> <tr> <td background=\"a/th1_ls.gif\"> </td><td>	<table width=\"15\" height=\"15\" cellspacing =\"0\" cellpadding=\"0\">	<tr>	<td ><center>&nbsp;</center>	</td>	</tr>	</table> </td><td background=\"a/th1_rs.gif\"> </td> </tr> <tr> <td>  <img src=\"a/th1_bl.gif\">  </td> <td background=\"a/th1_btm.gif\"> </td><td>  <img src=\"a/th1_br.gif\"> </td> </tr> </table></td>";
			else
			keyBoardStr = keyBoardStr + "<td>" +generateKeyButton(standardKeys[keyIndex][index2]) + "</td>";
		}
		keyBoardStr = keyBoardStr + "</tr></table></td></tr>";
	}
	keyBoardStr = keyBoardStr + "</table></td></tr></table>";
	document.getElementById("keyboard").innerHTML = keyBoardStr;
	document.getElementById("keyTable_1").style.backgroundColor="#cccccc";
 
}
 
 
document.onkeydown = checkKeycode
 
function dontChangeFocus()
{
	inputField.focus();
}
 
function checkKeycode(e) {
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	if(keycode==38||keycode==1280)//up Arrow
	{
		goUp();
	}
	else if(keycode==40||keycode==1281)//down arrow
	{
		 goDown();
	}
	else if(keycode==39||keycode==1283)
	{
		goRight();
	}
	else if(keycode==37||keycode==1282)
	{
		goLeft();
	}
	else if(keycode==13)
	{
		if(keyboardStatus == false && inputField!=null){
			showKeyboard(inputField);
		}
		else{
			pressSelect();
		}
	}
	else if(keycode==8 || keycode==1288)
	{
		goBack();
	}
}
 
function goLeft(){
	var tempKey = "key_"+standardKeys[currentRow][currentKey];
	var tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#ffffff";
 
	currentKey--;
	if(currentKey==-1){
		currentKey=standardKeys[currentRow].length-1;
	}
	tempKey = "key_"+standardKeys[currentRow][currentKey];
	tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#cccccc";
 
}
 
function goRight(){
	var tempKey = "key_"+standardKeys[currentRow][currentKey];
	var tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#ffffff";
 
	currentKey++;
	if(currentKey>=standardKeys[currentRow].length){
		currentKey=0;
	}
	tempKey = "key_"+standardKeys[currentRow][currentKey];
	tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#cccccc";
 
}
 
 
function goUp(){
	var tempKey = "key_"+standardKeys[currentRow][currentKey];
	var tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#ffffff";
 
	currentRow--;
	if(currentRow==-1){
		currentRow=standardKeys.length-1;
	}
	while(currentKey >= standardKeys[currentRow].length){
		currentKey--
	}
	tempKey = "key_"+standardKeys[currentRow][currentKey];
	tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#cccccc";
	
}
 
function goDown(){
	var tempKey = "key_"+standardKeys[currentRow][currentKey];
	var tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#ffffff";
	currentRow++;
	if(currentRow>=standardKeys.length){
		currentRow=0;
	}
 
	while(currentKey >= standardKeys[currentRow].length){
		currentKey--
	}
 
	tempKey = "key_"+standardKeys[currentRow][currentKey];
	tempTableKey = "keyTable_"+standardKeys[currentRow][currentKey];
	document.getElementById(tempKey).bgColor="#cccccc";
	
 
 
}
 
 
function pressSelect(){
	var keyStr = (""+standardKeys[currentRow][currentKey]);
	if(capsStatus=="OFF"){
		keyStr = keyStr.toLowerCase();
	}else{
		keyStr = keyStr.toUpperCase();
	}
	if(checkForSpecialChars(standardKeys[currentRow][currentKey]))
		inputField.value = inputField.value + keyStr;
}
 
function checkForSpecialChars(keyText){
	for(var specialIndex=0;specialIndex<specialChar.length;specialIndex++){
		for(var index2=0;index2<specialChar[specialIndex].length;index2++){
			if(keyText==specialChar[specialIndex][index2]){
				if(keyText=="CAPS" && capsStatus == "ON"){
					capsStatus = "OFF";
				}else if(keyText=="CAPS" && capsStatus == "OFF")
				{
					capsStatus = "ON";
				}
				return false;
			}
		}
	}
	return true;
}
 
function goBack(){
	if(inputField.value.length>0){
		inputField.value = inputField.value.substring(0,inputField.value.length-1);
	}
}
 
KEYBOARD.HTML :
 
<html>
<script language="JavaScript" type="text/javascript" src="keyboard.js"></script>
<body bgcolor="#ffffff" id="bodyid">
<div style="position:absolute;left:100;top:30;" ><input type="text" onfocus="javascript:textBoxInFocus(this);"  name="textField" onblur="javascript:textBoxOutFocus();" id="textField" style="width:260px;" >
</div>
<div style="position:absolute;left:600;top:30;"><input type="text" onfocus="javascript:textBoxInFocus(this);"  name="textField2" onblur="javascript:textBoxOutFocus();" id="textField2" style="width:260px;" >
</div>
 
<div id="keyboard"  style="display:none;border:1px solid #000000 ;position:absolute;left:150;top:300;width:410"></div>
 
 
<script language="javascript">
generateFullKeyboard();
 
function hideKeyboard(){
keyboardStatus = false;
inputField.onblur="javascript:textBoxOutFocus();";
document.getElementById("keyboard").style.display="none";
//inputField = null;
}
function showKeyboard(obj){
keyboardStatus = true;
document.getElementById("keyboard").style.display="block";
inputField = obj;
inputField.onblur="javascript:textBoxOutFocus();dontChangeFocus();";
 
}
 
function textBoxOutFocus()
{
	//inputField = null;
}
 
function textBoxInFocus(obj){
	inputField = obj;
}
 
function findPosX(obj)
  {
    var curleft = 0;
    if(obj.offsetParent)
        while(1) 
        {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
  }
 
  function findPosY(obj)
  {
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
  }
 
	function test()
	{
		printstring("Hi\n");
	}
</script>
</body>
</html>

Open in new window

th1-bl.gif
th1-br.gif
th1-btm.gif
th1-ls.gif
th1-rs.gif
th1-tl.gif
th1-top.gif
th1-tr.gif
0
Comment
Question by:manas_sharma86
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 17

Accepted Solution

by:
Cem Türk earned 500 total points
ID: 23067669
following will change the bgcolor of the cells when buttons are pressed

function pressSelect(){
	var keyStr = (""+standardKeys[currentRow][currentKey]);
	if(capsStatus=="OFF"){
		keyStr = keyStr.toLowerCase();
	}else{
		keyStr = keyStr.toUpperCase();
	}
	if(checkForSpecialChars(standardKeys[currentRow][currentKey])) {
		inputField.value = inputField.value + keyStr;
document.getElementById("key_" + keyStr).style.color="red"; //change key color to red
setTimeout("document.getElementById('key_' " + keyStr + "').style.color=''",500); //reset color after half a second
 
}
}
 
function checkForSpecialChars(keyText){
	for(var specialIndex=0;specialIndex<specialChar.length;specialIndex++){
		for(var index2=0;index2<specialChar[specialIndex].length;index2++){
			if(keyText==specialChar[specialIndex][index2]){
				if(keyText=="CAPS" && capsStatus == "ON"){
					capsStatus = "OFF";
document.getElementById("key_CAPS").style.color="";
				}else if(keyText=="CAPS" && capsStatus == "OFF")
				{
					capsStatus = "ON";
document.getElementById("key_CAPS").style.color="red";
				}
				return false;
			}
		}
	}
	return true;
}

Open in new window

0

Featured Post

[Webinar] Code, Load, and Grow

Managing multiple websites, servers, applications, and security on a daily basis? Join us for a webinar on May 25th to learn how to simplify administration and management of virtual hosts for IT admins, create a secure environment, and deploy code more effectively and frequently.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
This article discusses how to create an extensible mechanism for linked drop downs.
In this tutorial viewers will learn how to style transparent/translucent elements using alpha transparency in CSS Start with a normal styled element, such as a div.: Define its "background-color" property as "rgba (255, 255, 255, .5): The numbers in…
Learn how to create flexible layouts using relative units in CSS.  New relative units added in CSS3 include vw(viewports width), vh(viewports height), vmin(minimum of viewports height and width), and vmax (maximum of viewports height and width).

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question