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Auto-complete Control

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4.87 (189 votes)
16 May 2005
Auto-complete control.

Introduction

Most auto-complete textboxes may have a reverse effect on end-users. Instead of helping them get things done faster, they get irritated by design flaws made by the programmer. (Admittedly, I've made such design flaws too.)

I got to learn this lesson when designing my first auto-complete edit control, found here[^]. Although it seemingly looks intuitive, I forgot to consider the fact that what if the end-user wanted to type just 'ap' but the 'ple' appears out of nowhere? This means that the end-user would then have to hunt for, and press the delete key.

After seeing how GMail made its auto-complete, I took the idea and implemented my own version of the auto-complete control.

Auto-complete textbox control:

  • Timeout: 3000ms
  • Delimiter: ; and ,
  • Options: ('an apple', 'alligator', 'elephant', 'pear', 'kingbird', 'kingbolt', 'kingcraft', 'kingcup', 'kingdom', 'kingfisher', 'kingpin')

How does it work?

The important event that will fire whenever the user press any key is onkeydown. The onkeydown event handles all the normal character input and is in charge of creating the auto-complete list. It also handles keys like 'up', 'down' and 'enter'.

Using the JavaScript regexp() object, the script will run through the array containing the keywords and match them one by one. After which, a DIV will be created dynamically using document.createElement(). Finally, when the user presses the 'Enter' key, the DIV will be detached and the input box updated.

The user can also select the options using the mouse. This is done through three events: onmouseover, onmouseout, and onclick.

How do you implement it into your own textbox?

Firstly, include the .js file into your script:

<script language="javascript" type="text/javascript" 

         src="actb.js"></script>

Next, create an array (in JavaScript) containing the keywords:

customarray = new Array('apple','pear','mango','pineapple', 
         'orange','banana','durian', 'jackfruit','etc');

Apply the widget to your textbox using JavaScript:

actb(document.getElementById('textbox_id'),customarray);

And you're done!

Tweakability

This auto-complete edit control has some customizable features:

/* ---- Variables ---- */
// Autocomplete Timeout in ms (-1: autocomplete never time out)
this.actb_timeOut = -1;
// Number of elements autocomplete can show (-1: no limit)
this.actb_lim = 4;
// should the auto complete be limited to the beginning of keyword?
this.actb_firstText = false;
// Enable Mouse Support
this.actb_mouse = true;
// Delimiter for multiple autocomplete.
// Set it to empty array for single autocomplete
this.actb_delimiter = new Array(' ',',');
// Show widget only after this number of characters is typed in.
this.actb_startcheck = 1;
/* ---- Variables ---- */


/* --- Styles --- */
this.actb_bgColor = '#888888';
this.actb_textColor = '#FFFFFF';
this.actb_hColor = '#000000';
this.actb_fFamily = 'Verdana';
this.actb_fSize = '11px';
this.actb_hStyle = 'text-decoration:underline;font-weight="bold"';
/* --- Styles --- */ 

this.actb_keywords = new Array();

The styles are pretty self-explanatory; tweak the values for best results for your own website. Firstly, the variable actb_timeOut controls how long the auto-complete list's timeout should be (i.e., after x ms, the list will disappear). By default, it is set to -1, which represents no timeout.

Next, the variable actb_lim limits the number of elements the list will show, to prevent over-spamming. If you do not want to set any limit, set it to -1.

Thirdly, the actb_firstText variable determines whether the match with the keywords-array should only start from the first character or if the match can be any arbitrary match within the keyword. For example, if firstText is set to true, then a given string "ello" will match with "hello".

Also, the actb_mouse variable determines whether the control should respond to mouse events. Mouse support works when user clicks on the auto-complete list that appears.

The actb_delimiter variable allows for the much requested multiple auto-complete feature. Set a custom delimiter, or even multiple delimiters like semi-colon (;) or comma (,), and the engine will complete words separated by the given delimiter.

Lastly, actb_startcheck controls the number of characters that must be typed in before the textbox will display the control. Thanks to flyasfly for this suggestion.

Implementations

As of version 1.3, all of the above mentioned are public variables. This can be useful in emulating controls like Google Suggest. When you apply the control to your textbox using the actb function, it returns an object.

Changing the autocomplete list

obj = actb(document.getElementById('textbox_id'),customarray);
// ... after some time ...
obj.actb_keyword = new Array('this','is','a','new','set','of','keywords');

Multiple auto-complete textboxes

obj = new actb(document.getElementById('textbox_id'),customarray);
obj2 = new actb(document.getElementById('textbox2_id'),customarray2);

Multiple textboxes (different options)

obj = new actb(document.getElementById('textbox_id'),customarray);
obj.actb_mouse = false; // no mouse support
obj2 = new actb(document.getElementById('textbox2_id'),customarray2);
obj2.actb_startcheck = 2; // start actb only after 2nd character

Todo

  • Add second array (customarrayDesc) for display description in the list (ex => [an apple: it's an apple] instead of [an apple]. Suggestion by angelo77).
  • Many other features suggested by CPians, some of which might be beyond me at the moment but I'll still try my best!

Tested browsers

  • Internet Explorer 6.0.28
  • Mozilla Firefox version 1.0.3

Finally...

Thank you to all of you who have supported, modified, and offered your suggestions to the control! I'm extremely apologetic for the inactiveness of this project because of schoolwork etc. However, I still try my best to work on it whenever anyone has a new feature request!

License

This control will be, from effect of version 1.1, published under Creative Common License [^]

Change Log

  • 1.31: 12/5/2005
    • Fix: Fixed a bug with actb_bgColor styles due to typo.
    • Fix: Now caret does not move away (Firefox) when user presses Enter or tab.
  • 1.3: 8 May 2005
    • Added: actb_startcheck has the number of characters that start the widget control. Thanks to flyasfly for suggestion.
    • Change: All 'tweakabilities' and styles have been changed to public variables.
    • Fix: Fixed an IE-specific bug which prevents the caret position of textarea to be retrieved. Now widget works for textarea too.
  • 1.2: 9 Apr 2005
    • Change: Converted the code of actb widget to OOP.
    • Fix: Mouse click bug that disallows autocomplete control from deleting itself.
    • Added: the keywords array (actb_keyword) becomes a public variable, so it can be modified from the parent script.
  • 1.1: 6 Dec 2004
    • Fix: Metacharacters escaped before parsing with RegExp.
    • Added: Multiple delimiters.
    • Added: Tab now completes the text like Enter.
    • Change: Now, only an event is needed for the control to work; the rest are attached dynamically.
    • Fix: Bugs with caret position in Firefox: originally, 'up' and 'down' keys changed caret position in the textbox for Firefox. This problem has been rectified.
  • 1.0: 23 Nov 2004
    • Fix: some miscellaneous bugs in mouse support (actb_removedisp() cannot be executed properly).
    • Fix: actb_timeout now works fine with mouse support on.
    • Added: When user moves the mouse over each individual option, the option will be highlighted.
    • Added: Multiple auto-complete! This works even if you're editing previous "fields".
  • 0.9: 6 Oct 2004
    • Fix: A bug concerning clientHeight which apparently Mozilla does not support. Thanks Cameron Smith for pointing out.
    • Added: This control now supports phrases with spaces in between. Thanks to Miguel Vieira.
    • Added: This control has mouse support. Thanks to Alecacct and everyone for the idea.
  • 18 Aug 2004
    • Basic engine created.
    • Article posted!

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

zichun
Singapore Singapore
I'm young and cool Smile | :)

Comments and Discussions

 
GeneralFirst option value question Pin
jamoraquai16-May-05 21:36
Memberjamoraquai16-May-05 21:36 
GeneralRe: First option value question Pin
iluindian19-Jun-08 2:56
Memberiluindian19-Jun-08 2:56 
GeneralSuggestion Pin
brntoni13-May-05 13:10
Memberbrntoni13-May-05 13:10 
GeneralIE on Mac Pin
kzachos13-May-05 4:16
Memberkzachos13-May-05 4:16 
GeneralSpace Issue Pin
brntoni12-May-05 8:38
Memberbrntoni12-May-05 8:38 
GeneralRe: Space Issue Pin
zichun13-May-05 2:28
Memberzichun13-May-05 2:28 
GeneralRe: Space Issue Pin
brntoni13-May-05 7:42
Memberbrntoni13-May-05 7:42 
GeneralDisplay description, bar, and bug for last version of actb.js Pin
angelo7711-May-05 13:12
Memberangelo7711-May-05 13:12 
Hi,
at first I would like congratulate zichun for his article and auto-complete control. I send you my ideas to improve functionnality of this control :

1. add second array (customarrayDesc) for display desciption in the list (ex => [an apple : it's an apple] instead of [an apple].

2. display bar on right which display ieme item/ total item. The best would be display a scrollbar on right.

I have realized this 2 ideas. I have download last version of actb.js and there where a bug (variable actb_curractb_bgColor was not defined). I have corriged it. When I update code I have write // code ADDED before.

Here code for AUTOCOMPLETE.htm and ACTB.js

*********************************************************************
* AUTOCOMPLETE.htm *
*********************************************************************

<html>
<head>
<script language="javascript" type="text/javascript" src="actb.js"></script>
<script language="javascript" type="text/javascript" src="common.js"></script>
<script>
var customarray=new Array('an apple','alligator','elephant','pear','kingbird','kingbolt', 'kingcraft','kingcup','kingdom','kingfisher','kingpin');
// code ADDED : array which contains description of customarray
var customarrayDescription = new Array('this is an apple','this is alligator','this is elephant','this is pear','this is kingbird','this is kingbolt', 'this is kingcraft','this is kingcup','this is kingdom','this is kingfisher','this is kingpin');
</script>
</head>

<body>
<input type='text' style='font-family:verdana;width:300px;font-size:12px' id='tb' value=''/>
<script>
var obj = actb(document.getElementById('tb'),customarray, customarrayDescription);
//setTimeout(function(){obj.actb_keywords = custom2;},10000);
</script>
</body>
</html>

*********************************************************************
* ACTB.js *
*********************************************************************

function actb(obj,ca,caDesc){
// code ADDED : parametre caDesc is an array which contains description of first array ca

/* ---- Public Variables ---- */
this.actb_timeOut = -1; // Autocomplete Timeout in ms (-1: autocomplete never time out)
this.actb_lim = 4; // Number of elements autocomplete can show (-1: no limit)
this.actb_firstText = false; // should the auto complete be limited to the beginning of keyword?
this.actb_mouse = true; // Enable Mouse Support
this.actb_delimiter = new Array(' ',','); // Delimiter for multiple autocomplete. Set it to empty array for single autocomplete
this.actb_startcheck = 1; // Show widget only after this number of characters is typed in.
/* ---- Public Variables ---- */

/* --- Styles --- */
this.actb_bgColor = '#FFFFEE'; //'#888888';
this.actb_textColor = '#6699CC'; //'#FFFFFF';
this.actb_hColor = '#DDEEFF'; //'#000000';
this.actb_fFamily = 'Verdana';
this.actb_fSize = '11px';
this.actb_hStyle = 'font-weight="bold";color:red'; //'text-decoration:underline;font-weight="bold"';
// code ADDED : style for description
this.actb_hStyleDesc = 'font-style:italic;color:#A0A0A0;'; // Description

// code ADDED : BUG
this.actb_curractb_bgColor = '#ACD2F6'
/* --- Styles --- */

/* ---- Private Variables ---- */
var actb_delimwords = new Array();
var actb_cdelimword = 0;
var actb_delimchar = new Array();
var actb_display = false;
var actb_pos = 0;
var actb_total = 0;
var actb_curr = null;
var actb_rangeu = 0;
var actb_ranged = 0;
var actb_bool = new Array();
var actb_pre = 0;
var actb_toid;
var actb_tomake = false;
var actb_getpre = "";
var actb_mouse_on_list = 1;
var actb_kwcount = 0;
var actb_caretmove = false;
this.actb_keywords = new Array();
/* ---- Private Variables---- */

this.actb_keywords = ca;
// code ADDED : array which contains description of first array ca
this.actb_keywordsDesc = caDesc;
// code ADDED : bar
this.actb_bar = null;

var actb_self = this;

actb_curr = obj;

addEvent(actb_curr,"focus",actb_setup);

// code ADDED : function which returns code with description
function actb_codedesc(code, desc) {
return code + " : " + "<font style='"+(actb_hStyleDesc)+"'>" + desc + "</font>";
}

// code ADDED : function which generate bar on right (ieme item/total item)
function actb_generate_bar(a) {
// generate bar if row > 1 and actb_lim >0
if (actb_lim >0) {
var nbRows = a.rows.length;
if (nbRows > 1) {
// Construct bar on right of table
bar = a.rows[0].insertCell(-1);
bar.id="actb_bar";
bar.style.fontSize = actb_fSize;
bar.style.backgroundColor = "#DDEEFF";
bar.style.color = "red";
bar.style.fontWeight = "bold";
bar.rowSpan=nbRows;
bar.style.verticalAlign= "bottom";
bar.height="100%";
this.actb_bar = bar;
actb_refresh_bar();
}
}
}
// code ADDED : function refresh bar on right (ieme item/total item)
function actb_refresh_bar() {
if (this.actb_bar != null)
this.actb_bar.innerHTML = actb_pos + "/" + actb_total;
}


function actb_setup(){
addEvent(document,"keydown",actb_checkkey);
addEvent(actb_curr,"blur",actb_clear);
addEvent(actb_curr,"keypress",actb_keypress);
}

function actb_clear(evt){
if (!evt) evt = event;
removeEvent(document,"keydown",actb_checkkey);
removeEvent(actb_curr,"blur",actb_clear);
removeEvent(actb,"keypress",actb_keypress);
actb_removedisp();
}
function actb_parse(n){
if (actb_self.actb_delimiter.length > 0){
var t = actb_delimwords[actb_cdelimword].trim().addslashes();
var plen = actb_delimwords[actb_cdelimword].trim().length;
}else{
var t = actb_curr.value.addslashes();
var plen = actb_curr.value.length;
}
var tobuild = '';
var i;

if (actb_self.actb_firstText){
var re = new RegExp("^" + t, "i");
}else{
var re = new RegExp(t, "i");
}
var p = n.search(re);

for (i=0;i<p;i++){
tobuild += n.substr(i,1);
}
tobuild += "<font style='"+(actb_self.actb_hStyle)+"'>"
for (i=p;i<plen+p;i++){
tobuild += n.substr(i,1);
}
tobuild += "</font>";
for (i=plen+p;i<n.length;i++){
tobuild += n.substr(i,1);
}
return tobuild;
}
function actb_generate(){
if (document.getElementById('tat_table')){ actb_display = false;document.body.removeChild(document.getElementById('tat_table')); }
if (actb_kwcount == 0){
actb_display = false;
return;
}
a = document.createElement('table');
a.cellSpacing='1px';
a.cellPadding='2px';
a.style.position='absolute';
a.style.top = eval(curTop(actb_curr) + actb_curr.offsetHeight) + "px";
a.style.left = curLeft(actb_curr) + "px";
a.style.backgroundColor=actb_self.actb_bgColor;
a.id = 'tat_table';
document.body.appendChild(a);
var i;
var first = true;
var j = 1;
if (actb_self.actb_mouse){
a.onmouseout = actb_table_unfocus;
a.onmouseover = actb_table_focus;
}
var counter = 0;
for (i=0;i<actb_self.actb_keywords.length;i++){
if (actb_bool[i]){
counter++;
r = a.insertRow(-1);
if (first && !actb_tomake){
r.style.backgroundColor = actb_self.actb_hColor;
first = false;
actb_pos = counter;
}else if(actb_pre == i){
r.style.backgroundColor = actb_self.actb_hColor;
first = false;
actb_pos = counter;
}else{
r.style.backgroundColor = actb_self.actb_bgColor;
}
r.id = 'tat_tr'+(j);
c = r.insertCell(-1);
c.style.color = actb_self.actb_textColor;
c.style.fontFamily = actb_self.actb_fFamily;
c.style.fontSize = actb_self.actb_fSize;
// code ADDED : for dispaly code and description
if (actb_keywordsDesc != null) {
// Get Code
var code = actb_parse(actb_self.actb_keywords[i])
// Get Description
var desc = actb_keywordsDesc[i];
c.innerHTML = actb_codedesc(code, desc);
}
else {
c.innerHTML = actb_parse(actb_self.actb_keywords[i]);
}
c.id = 'tat_td'+(j);
c.setAttribute('pos',j);
if (actb_self.actb_mouse){
c.style.cursor = 'pointer';
c.onclick=actb_mouseclick;
c.onmouseover = actb_table_highlight;
}
j++;
}
if (j - 1 == actb_self.actb_lim && j < actb_total){
r = a.insertRow(-1);
// Code Changed : BUG
r.style.backgroundColor = actb_self.actb_curractb_bgColor; //actb_self.actb_bgColor;
c = r.insertCell(-1);
c.style.color = actb_self.actb_textColor;
c.style.fontFamily = 'arial narrow';
c.style.fontSize = actb_self.actb_fSize;
c.align='center';
replaceHTML(c,'\\/');
if (actb_self.actb_mouse){
c.style.cursor = 'pointer';
c.onclick = actb_mouse_down;
}
break;
}
}
actb_rangeu = 1;
actb_ranged = j-1;
actb_display = true;
if (actb_pos <= 0) actb_pos = 1;

// generate bar on right (i eme item/total item)
actb_generate_bar(a);
}
function actb_remake(){
document.body.removeChild(document.getElementById('tat_table'));
a = document.createElement('table');
a.cellSpacing='1px';
a.cellPadding='2px';
a.style.position='absolute';
a.style.top = eval(curTop(actb_curr) + actb_curr.offsetHeight) + "px";
a.style.left = curLeft(actb_curr) + "px";
a.style.backgroundColor=actb_self.actb_bgColor;
a.id = 'tat_table';
if (actb_self.actb_mouse){
a.onmouseout= actb_table_unfocus;
a.onmouseover=actb_table_focus;
}
document.body.appendChild(a);
var i;
var first = true;
var j = 1;
if (actb_rangeu > 1){
r = a.insertRow(-1);
// Code Changed : BUG
r.style.backgroundColor = actb_self.actb_curractb_bgColor; //actb_self.actb_bgColor;
c = r.insertCell(-1);
c.style.color = actb_self.actb_textColor;
c.style.fontFamily = 'arial narrow';
c.style.fontSize = actb_self.actb_fSize;
c.align='center';
replaceHTML(c,'/\\');
if (actb_self.actb_mouse){
c.style.cursor = 'pointer';
c.onclick = actb_mouse_up;
}
}
for (i=0;i<actb_self.actb_keywords.length;i++){
if (actb_bool[i]){
if (j >= actb_rangeu && j <= actb_ranged){
r = a.insertRow(-1);
r.style.backgroundColor = actb_self.actb_bgColor;
r.id = 'tat_tr'+(j);
c = r.insertCell(-1);
c.style.color = actb_self.actb_textColor;
c.style.fontFamily = actb_self.actb_fFamily;
c.style.fontSize = actb_self.actb_fSize;
// code ADDED : for dispaly code and description
if (actb_keywordsDesc != null) {
// Get Code
var code = actb_parse(actb_self.actb_keywords[i])
// Get Description
var desc = actb_keywordsDesc[i];
c.innerHTML = actb_codedesc(code, desc);
}
else {
c.innerHTML = actb_parse(actb_self.actb_keywords[i]);
}
c.id = 'tat_td'+(j);
c.setAttribute('pos',j);
if (actb_self.actb_mouse){
c.style.cursor = 'pointer';
c.onclick=actb_mouseclick;
c.onmouseover = actb_table_highlight;
}
j++;
}else{
j++;
}
}
if (j > actb_ranged) break;
}
if (j-1 < actb_total){
r = a.insertRow(-1);
// Code Changed : BUG
r.style.backgroundColor = actb_self.actb_curractb_bgColor; //actb_self.actb_bgColor;
c = r.insertCell(-1);
c.style.color = actb_self.actb_textColor;
c.style.fontFamily = 'arial narrow';
c.style.fontSize = actb_self.actb_fSize;
c.align='center';
replaceHTML(c,'\\/');
if (actb_self.actb_mouse){
c.style.cursor = 'pointer';
c.onclick = actb_mouse_down;
}
}
// generate bar on right (i eme item/total item)
actb_generate_bar(a);
}
function actb_goup(){
if (!actb_display) return;
if (actb_pos == 1) return;
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
actb_pos--;
if (actb_pos < actb_rangeu) actb_moveup();
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
//code ADDED : refresh bar
actb_refresh_bar();
}
function actb_godown(){
if (!actb_display) return;
if (actb_pos == actb_total) return;
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
actb_pos++;
if (actb_pos > actb_ranged) actb_movedown();
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
//code ADDED : refresh bar
actb_refresh_bar();
}
function actb_movedown(){
actb_rangeu++;
actb_ranged++;
actb_remake();
}
function actb_moveup(){
actb_rangeu--;
actb_ranged--;
actb_remake();
}

/* Mouse */
function actb_mouse_down(){
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
actb_pos++;
actb_movedown();
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
actb_curr.focus();
actb_mouse_on_list = 0;
if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
//code ADDED : refresh bar
actb_refresh_bar();
}
function actb_mouse_up(evt){
if (!evt) evt = event;
if (evt.stopPropagation){
evt.stopPropagation();
}else{
evt.cancelBubble = true;
}
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
actb_pos--;
actb_moveup();
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
actb_curr.focus();
actb_mouse_on_list = 0;
if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list=0;actb_removedisp();},actb_self.actb_timeOut);
//code ADDED : refresh bar
actb_refresh_bar();
}
function actb_mouseclick(evt){
if (!evt) evt = event;
if (!actb_display) return;
actb_mouse_on_list = 0;
actb_pos = this.getAttribute('pos');
actb_penter();
}
function actb_table_focus(){
actb_mouse_on_list = 1;
}
function actb_table_unfocus(){
actb_mouse_on_list = 0;
if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list = 0;actb_removedisp();},actb_self.actb_timeOut);
}
function actb_table_highlight(){
actb_mouse_on_list = 1;
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_bgColor;
actb_pos = this.getAttribute('pos');
while (actb_pos < actb_rangeu) actb_moveup();
while (actb_pos > actb_ranged) actb_movedown();
document.getElementById('tat_tr'+actb_pos).style.backgroundColor = actb_self.actb_hColor;
if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list = 0;actb_removedisp();},actb_self.actb_timeOut);
//code ADDED : refresh bar
actb_refresh_bar();
}
/* ---- */

function actb_insertword(a){
if (actb_self.actb_delimiter.length > 0){
str = '';
l=0;
for (i=0;i<actb_delimwords.length;i++){
if (actb_cdelimword == i){
str += a;
l = str.length;
}else{
str += actb_delimwords[i];
}
if (i != actb_delimwords.length - 1){
str += actb_delimchar[i];
}
}
actb_curr.value = str;
setCaret(actb_curr,l);
}else{
actb_curr.value = a;
}
actb_mouse_on_list = 0;
actb_removedisp();
}
function actb_penter(){
if (!actb_display) return;
actb_display = false;
var word = '';
var c = 0;
for (var i=0;i<=actb_self.actb_keywords.length;i++){
if (actb_bool[i]) c++;
if (c == actb_pos){
word = actb_self.actb_keywords[i];
break;
}
}
actb_insertword(word);
}
function actb_removedisp(){
if (actb_mouse_on_list==0){
actb_display = 0;
if (document.getElementById('tat_table')){ document.body.removeChild(document.getElementById('tat_table')); }
if (actb_toid) clearTimeout(actb_toid);
}
}
function actb_keypress(){
return !actb_caretmove;
}
function actb_checkkey(evt){
if (!evt) evt = event;
a = evt.keyCode;
caret_pos_start = getCaretStart(actb_curr);
actb_caretmove = 0;
switch (a){
case 38:
actb_goup();
actb_caretmove = 1;
return false;
break;
case 40:
actb_godown();
actb_caretmove = 1;
return false;
break;
case 13: case 9:
if (actb_display){
actb_caretmove = 1;
actb_penter();
return false;
}else{
return true;
}
break;
default:
setTimeout(function(){actb_tocomplete(a)},50);
break;
}
}

function actb_tocomplete(kc){
if (kc == 38 || kc == 40 || kc == 13) return;
var i;
if (actb_display){
var word = 0;
var c = 0;
for (var i=0;i<=actb_self.actb_keywords.length;i++){
if (actb_bool[i]) c++;
if (c == actb_pos){
word = i;
break;
}
}
actb_pre = word;
}else{ actb_pre = -1};

if (actb_curr.value == ''){
actb_mouse_on_list = 0;
actb_removedisp();
return;
}
if (actb_self.actb_delimiter.length > 0){
caret_pos_start = getCaretStart(actb_curr);
caret_pos_end = getCaretEnd(actb_curr);

delim_split = '';
for (i=0;i<actb_self.actb_delimiter.length;i++){
delim_split += actb_self.actb_delimiter[i];
}
delim_split = delim_split.addslashes();
delim_split_rx = new RegExp("(["+delim_split+"])");
c = 0;
actb_delimwords = new Array();
actb_delimwords[0] = '';
for (i=0,j=actb_curr.value.length;i<actb_curr.value.length;i++,j--){
if (actb_curr.value.substr(i,j).search(delim_split_rx) == 0){
ma = actb_curr.value.substr(i,j).match(delim_split_rx);
actb_delimchar[c] = ma[1];
c++;
actb_delimwords[c] = '';
}else{
actb_delimwords[c] += actb_curr.value.charAt(i);
}
}

var l = 0;
actb_cdelimword = -1;
for (i=0;i<actb_delimwords.length;i++){
if (caret_pos_end >= l && caret_pos_end <= l + actb_delimwords[i].length){
actb_cdelimword = i;
}
l+=actb_delimwords[i].length + 1;
}
var ot = actb_delimwords[actb_cdelimword].trim();
var t = actb_delimwords[actb_cdelimword].addslashes().trim();
}else{
var ot = actb_curr.value;
var t = actb_curr.value.addslashes();
}
if (ot.length == 0){
actb_mouse_on_list = 0;
actb_removedisp();
}
if (ot.length < actb_self.actb_startcheck) return this;
if (actb_self.actb_firstText){
var re = new RegExp("^" + t, "i");
}else{
var re = new RegExp(t, "i");
}

actb_total = 0;
actb_tomake = false;
actb_kwcount = 0;
for (i=0;i<actb_self.actb_keywords.length;i++){
actb_bool[i] = false;
if (re.test(actb_self.actb_keywords[i])){
actb_total++;
actb_bool[i] = true;
actb_kwcount++;
if (actb_pre == i) actb_tomake = true;
}
}

if (actb_toid) clearTimeout(actb_toid);
if (actb_self.actb_timeOut > 0) actb_toid = setTimeout(function(){actb_mouse_on_list = 0;actb_removedisp();},actb_self.actb_timeOut);
actb_generate();
}
return this;
}

Hope this 2 ideas are used.
Angelo
GeneralRe: Display description, bar, and bug for last version of actb.js Pin
DavidSu26-Jun-05 21:58
MemberDavidSu26-Jun-05 21:58 
Generaloptions for every input text box alone Pin
netanelw9-May-05 22:19
Membernetanelw9-May-05 22:19 
GeneralRe: options for every input text box alone Pin
zichun11-May-05 4:08
Memberzichun11-May-05 4:08 
GeneralRe: options for every input text box alone Pin
olemh16-Aug-05 23:31
Memberolemh16-Aug-05 23:31 
GeneralRe: options for every input text box alone Pin
Tech012-Oct-05 5:40
MemberTech012-Oct-05 5:40 
GeneralRe: options for every input text box alone Pin
Tech013-Oct-05 3:34
MemberTech013-Oct-05 3:34 
GeneralUsing multidimensional arrays to fill several textbox' Pin
mgaarde9-May-05 10:40
Membermgaarde9-May-05 10:40 
GeneralRe: Using multidimensional arrays to fill several textbox' Pin
mkhines13-Jun-05 4:24
Membermkhines13-Jun-05 4:24 
Generalgreat work!!! Pin
Anonymous6-May-05 18:54
MemberAnonymous6-May-05 18:54 
GeneralRe: great work!!! Pin
Anonymous19-May-05 12:34
MemberAnonymous19-May-05 12:34 
Generalspecific options for every input text box Pin
netanelw6-May-05 3:57
Membernetanelw6-May-05 3:57 
GeneralRe: specific options for every input text box Pin
dferrassoli6-May-05 5:52
Memberdferrassoli6-May-05 5:52 
GeneralRe: specific options for every input text box Pin
netanelw9-May-05 6:05
Membernetanelw9-May-05 6:05 
QuestionHow i can set pointer in text boxwith java script Pin
Anonymous30-Apr-05 1:50
MemberAnonymous30-Apr-05 1:50 
GeneralMouse pointer Pin
Anonymous29-Apr-05 18:52
MemberAnonymous29-Apr-05 18:52 
GeneralDoesn't Work for Mulitple Text boxes Pin
jamoraquai27-Apr-05 18:01
Memberjamoraquai27-Apr-05 18:01 
GeneralRe: Doesn't Work for Mulitple Text boxes Pin
zichun28-Apr-05 2:49
Memberzichun28-Apr-05 2:49 

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Article
Posted 17 Aug 2004

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