// Interface patches
//Autocomplete patch
//Adds support for JSON data retrieval.
jQuery.iAuto = {
helper : null,
content : null,
iframe: null,
timer : null,
lastValue: null,
currentValue: null,
subject: null,
selectedItem : null,
items: null,
empty : function()
{
jQuery.iAuto.content.empty();
if (jQuery.iAuto.iframe) {
jQuery.iAuto.iframe.hide();
}
},
clear : function()
{
jQuery.iAuto.items = null;
jQuery.iAuto.selectedItem = null;
jQuery.iAuto.lastValue = jQuery.iAuto.subject.value;
if(jQuery.iAuto.helper.css('display') == 'block') {
if (jQuery.iAuto.subject.autoCFG.fx) {
switch(jQuery.iAuto.subject.autoCFG.fx.type) {
case 'fade':
jQuery.iAuto.helper.fadeOut(jQuery.iAuto.subject.autoCFG.fx.duration, jQuery.iAuto.empty);
break;
case 'slide':
jQuery.iAuto.helper.SlideOutUp(jQuery.iAuto.subject.autoCFG.fx.duration, jQuery.iAuto.empty);
break;
case 'blind':
jQuery.iAuto.helper.BlindUp(jQuery.iAuto.subject.autoCFG.fx.duration, jQuery.iAuto.empty);
break;
}
} else {
jQuery.iAuto.helper.hide();
}
if (jQuery.iAuto.subject.autoCFG.onHide)
jQuery.iAuto.subject.autoCFG.onHide.apply(jQuery.iAuto.subject, [jQuery.iAuto.helper, jQuery.iAuto.iframe]);
} else {
jQuery.iAuto.empty();
}
window.clearTimeout(jQuery.iAuto.timer);
},
update : function ()
{
var subject = jQuery.iAuto.subject;
var subjectValue = jQuery.iAuto.getFieldValues(subject);
var dataSource = subject.autoCFG.source;
var dataSourceType = subject.autoCFG.dataSourceType;
var isXML = subject.autoCFG.isXML;
if (subject && subjectValue.item != jQuery.iAuto.lastValue && subjectValue.item.length >= subject.autoCFG.minchars) {
jQuery.iAuto.lastValue = subjectValue.item;
jQuery.iAuto.currentValue = subjectValue.item;
data = {
field: jQuery(subject).attr('name')||'field',
value: subjectValue.item
};
if (typeof dataSource == 'string') {
jQuery.ajax(
{
type: 'POST',
data: jQuery.param(data),
dataType: (isXML) ? 'xml' : 'json',
success: function(response) {
jQuery.iAuto.handleData(response, subject, subjectValue, isXML);	
},
url : dataSource
}
);
} else if(typeof dataSource == 'function') {
var returnedData = dataSource(data);
jQuery.iAuto.handleData(returnedData, subject, subjectValue, isXML);
}
}
},
writeItems : function(subject, toWrite)
{
jQuery.iAuto.content.html(toWrite);
jQuery.iAuto.items = jQuery('li', jQuery.iAuto.content.get(0));
jQuery.iAuto.items
.mouseover(jQuery.iAuto.hoverItem)
.bind('click', jQuery.iAuto.clickItem);
var position = jQuery.iUtil.getPosition(subject);
var size = jQuery.iUtil.getSize(subject);
jQuery.iAuto.helper
.css('top', position.y + size.hb + 'px')
.css('left', position.x +  'px')
.addClass(subject.autoCFG.helperClass);
if (jQuery.iAuto.iframe) {
jQuery.iAuto.iframe
.css('display', 'block')
.css('top', position.y + size.hb + 'px')
.css('left', position.x +  'px')
.css('width', jQuery.iAuto.helper.css('width'))
.css('height', jQuery.iAuto.helper.css('height'));
}
jQuery.iAuto.selectedItem = 0;
jQuery.iAuto.items.get(0).className = subject.autoCFG.selectClass;
jQuery.iAuto.applyOn(subject,subject.autoCFG.lastSuggestion[0], 'onHighlight');
if (jQuery.iAuto.helper.css('display') == 'none') {
if (subject.autoCFG.inputWidth) {
var borders = jQuery.iUtil.getPadding(subject, true);
var paddings = jQuery.iUtil.getBorder(subject, true);
jQuery.iAuto.helper.css('width', subject.offsetWidth - (jQuery.boxModel ? (borders.l + borders.r + paddings.l + paddings.r) : 0 ) + 'px');
}
if (subject.autoCFG.fx) {
switch(subject.autoCFG.fx.type) {
case 'fade':
jQuery.iAuto.helper.fadeIn(subject.autoCFG.fx.duration);
break;
case 'slide':
jQuery.iAuto.helper.SlideInUp(subject.autoCFG.fx.duration);
break;
case 'blind':
jQuery.iAuto.helper.BlindDown(subject.autoCFG.fx.duration);
break;
}
} else {
jQuery.iAuto.helper.show();
}
if (jQuery.iAuto.subject.autoCFG.onShow)
jQuery.iAuto.subject.autoCFG.onShow.apply(jQuery.iAuto.subject, [jQuery.iAuto.helper, jQuery.iAuto.iframe]);
}
},
checkCache : function()
{
var subject = this;
if (subject.autoCFG.lastSuggestion) {
jQuery.iAuto.lastValue = subject.value;
jQuery.iAuto.currentValue = subject.value;
var isXML = subject.autoCFG.isXML;
var iterator = function(nr)
{
var value, text, testValue;
if (isXML) {
value = jQuery('value', this).text();
text = jQuery('text', this).text();
} else {
value = this.value;
text = this.text;	
}
testValue = value.toLowerCase();
inputValue = subject.value.toLowerCase();
if (testValue.indexOf(inputValue) == 0) {
toWrite += '<li rel="' + value + '" dir="' + nr + '" style="cursor: default;">' + text + '</li>';
}
};
var toWrite = '';
if (isXML) {
subject.autoCFG.lastSuggestion.each(iterator);
} else {
jQuery.each(subject.autoCFG.lastSuggestion, iterator);
}
if (toWrite != '') {
jQuery.iAuto.writeItems(subject, toWrite);
this.autoCFG.inCache = true;
return;
}
}
subject.autoCFG.lastSuggestion = null;
this.autoCFG.inCache = false;
},
selection : function(field, start, end)
{
if (field.createTextRange) {
var selRange = field.createTextRange();
selRange.collapse(true);
selRange.moveStart("character", start);
selRange.moveEnd("character", - end + start);
selRange.select();
} else if (field.setSelectionRange) {
field.setSelectionRange(start, end);
} else {
if (field.selectionStart) {
field.selectionStart = start;
field.selectionEnd = end;
}
}
field.focus();
},
getSelectionStart : function(field)
{
if (field.selectionStart)
return field.selectionStart;
else if(field.createTextRange) {
var selRange = document.selection.createRange();
var selRange2 = selRange.duplicate();
return 0 - selRange2.moveStart('character', -100000);
//result.end = result.start + range.text.length;
/*var selRange = document.selection.createRange();
var isCollapsed = selRange.compareEndPoints("StartToEnd", selRange) == 0;
if (!isCollapsed)
selRange.collapse(true);
var bookmark = selRange.getBookmark();
return bookmark.charCodeAt(2) - 2;*/
}
},
getFieldValues : function(field)
{
var fieldData = {
value: field.value,
pre: '',
post: '',
item: ''
};
if(field.autoCFG.multiple) {
var finishedPre = false;
var selectionStart = jQuery.iAuto.getSelectionStart(field)||0;
var chunks = fieldData.value.split(field.autoCFG.multipleSeparator);
for (var i=0; i<chunks.length; i++) {
if(
(fieldData.pre.length + chunks[i].length >= selectionStart
 || 
selectionStart == 0)
 && 
!finishedPre 
) {
if (fieldData.pre.length <= selectionStart)
fieldData.item = chunks[i];
else 
fieldData.post += chunks[i] + (chunks[i] != '' ? field.autoCFG.multipleSeparator : '');
finishedPre = true;
} else if (finishedPre){
fieldData.post += chunks[i] + (chunks[i] != '' ? field.autoCFG.multipleSeparator : '');
}
if(!finishedPre) {
fieldData.pre += chunks[i] + (chunks.length > 1 ? field.autoCFG.multipleSeparator : '');
}
}
} else {
fieldData.item = fieldData.value;
}
return fieldData;
},
autocomplete : function(e)
{
window.clearTimeout(jQuery.iAuto.timer);
var subject = jQuery.iAuto.getFieldValues(this);
var pressedKey = e.charCode || e.keyCode || -1;
if (/13|27|35|36|38|40|9/.test(pressedKey) && jQuery.iAuto.items) {
if (window.event) {
window.event.cancelBubble = true;
window.event.returnValue = false;
} else {
e.preventDefault();
e.stopPropagation();
}
if (jQuery.iAuto.selectedItem != null) 
jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).className = '';
else
jQuery.iAuto.selectedItem = -1;
switch(pressedKey) {
//enter
case 9:
case 13:
if (jQuery.iAuto.selectedItem == -1)
jQuery.iAuto.selectedItem = 0;
var selectedItem = jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0);
var valueToAdd = selectedItem.getAttribute('rel');
this.value = subject.pre + valueToAdd + this.autoCFG.multipleSeparator + subject.post;
jQuery.iAuto.lastValue = subject.item;
jQuery.iAuto.selection(
this, 
subject.pre.length + valueToAdd.length + this.autoCFG.multipleSeparator.length, 
subject.pre.length + valueToAdd.length + this.autoCFG.multipleSeparator.length
);
jQuery.iAuto.clear();
if (this.autoCFG.onSelect) {
iteration = parseInt(selectedItem.getAttribute('dir'))||0;
jQuery.iAuto.applyOn(this,this.autoCFG.lastSuggestion[iteration], 'onSelect');
}
if (this.scrollIntoView)
this.scrollIntoView(false);
return pressedKey != 13;
break;
//escape
case 27:
this.value = subject.pre + jQuery.iAuto.lastValue + this.autoCFG.multipleSeparator + subject.post;
this.autoCFG.lastSuggestion = null;
jQuery.iAuto.clear();
if (this.scrollIntoView)
this.scrollIntoView(false);
return false;
break;
//end
case 35:
jQuery.iAuto.selectedItem = jQuery.iAuto.items.size() - 1;
break;
//home
case 36:
jQuery.iAuto.selectedItem = 0;
break;
//up
case 38:
jQuery.iAuto.selectedItem --;
if (jQuery.iAuto.selectedItem < 0)
jQuery.iAuto.selectedItem = jQuery.iAuto.items.size() - 1;
break;
case 40:
jQuery.iAuto.selectedItem ++;
if (jQuery.iAuto.selectedItem == jQuery.iAuto.items.size())
jQuery.iAuto.selectedItem = 0;
break;
}
jQuery.iAuto.applyOn(this,this.autoCFG.lastSuggestion[jQuery.iAuto.selectedItem||0], 'onHighlight');
jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).className = this.autoCFG.selectClass;
if (jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).scrollIntoView)
jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).scrollIntoView(false);
if(this.autoCFG.autofill) {
var valToAdd = jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).getAttribute('rel');
this.value = subject.pre + valToAdd + this.autoCFG.multipleSeparator + subject.post;
if(jQuery.iAuto.lastValue.length != valToAdd.length)
jQuery.iAuto.selection(
this, 
subject.pre.length + jQuery.iAuto.lastValue.length, 
subject.pre.length + valToAdd.length
);
}
return false;
}
jQuery.iAuto.checkCache.apply(this);
if (this.autoCFG.inCache == false) {
if (subject.item != jQuery.iAuto.lastValue && subject.item.length >= this.autoCFG.minchars)
jQuery.iAuto.timer = window.setTimeout(jQuery.iAuto.update, this.autoCFG.delay);
if (jQuery.iAuto.items) {
jQuery.iAuto.clear();
}
}
return true;
},
applyOn: function(field, item, type)
{	
var dataSource = field.autoCFG.source;
if (field.autoCFG[type]) {
var data = {};
if (field.autoCFG.isXML) {
childs = item.getElementsByTagName('*');
for(i=0; i<childs.length; i++){
data[childs[i].tagName] = childs[i].firstChild.nodeValue;
}
} else {
data = item;
}
field.autoCFG[type].apply(field, [data]);
}
},
hoverItem : function(e)
{
if (jQuery.iAuto.items) {
if (jQuery.iAuto.selectedItem != null) 
jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).className = '';
jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).className = '';
jQuery.iAuto.selectedItem = parseInt(this.getAttribute('dir'))||0;
jQuery.iAuto.items.get(jQuery.iAuto.selectedItem||0).className = jQuery.iAuto.subject.autoCFG.selectClass;
}
},
clickItem : function(event)
{	
window.clearTimeout(jQuery.iAuto.timer);
event = event || jQuery.event.fix( window.event );
event.preventDefault();
event.stopPropagation();
var subject = jQuery.iAuto.getFieldValues(jQuery.iAuto.subject);
var valueToAdd = this.getAttribute('rel');
jQuery.iAuto.subject.value = subject.pre + valueToAdd + jQuery.iAuto.subject.autoCFG.multipleSeparator + subject.post;
jQuery.iAuto.lastValue = this.getAttribute('rel');
jQuery.iAuto.selection(
jQuery.iAuto.subject, 
subject.pre.length + valueToAdd.length + jQuery.iAuto.subject.autoCFG.multipleSeparator.length, 
subject.pre.length + valueToAdd.length + jQuery.iAuto.subject.autoCFG.multipleSeparator.length
);
jQuery.iAuto.clear();
if (jQuery.iAuto.subject.autoCFG.onSelect) {
iteration = parseInt(this.getAttribute('dir'))||0;
jQuery.iAuto.applyOn(jQuery.iAuto.subject,jQuery.iAuto.subject.autoCFG.lastSuggestion[iteration], 'onSelect');
}
return false;
},
protect : function(e)
{
pressedKey = e.charCode || e.keyCode || -1;
if (/13|27|35|36|38|40/.test(pressedKey) && jQuery.iAuto.items) {
if (window.event) {
window.event.cancelBubble = true;
window.event.returnValue = false;
} else {
e.preventDefault();
e.stopPropagation();
}
return false;
}
},
build : function(options)
{
if (!options.source || !jQuery.iUtil) {
return;
}
if (!jQuery.iAuto.helper) {
if (jQuery.browser.msie) {
jQuery('body', document).append('<iframe style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" id="autocompleteIframe" src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
jQuery.iAuto.iframe = jQuery('#autocompleteIframe');
}
jQuery('body', document).append('<div id="autocompleteHelper" style="position: absolute; top: 0; left: 0; z-index: 30001; display: none;"><ul style="margin: 0;padding: 0; list-style: none; z-index: 30002;">&nbsp;</ul></div>');
jQuery.iAuto.helper = jQuery('#autocompleteHelper');
jQuery.iAuto.content = jQuery('ul', jQuery.iAuto.helper);
}
return this.each(
function()
{
if (this.tagName != 'INPUT' && this.getAttribute('type') != 'text' )
return;
this.autoCFG = {};
this.autoCFG.source = options.source;
this.autoCFG.minchars = Math.abs(parseInt(options.minchars)||1);
this.autoCFG.helperClass = options.helperClass ? options.helperClass : '';
this.autoCFG.selectClass = options.selectClass ? options.selectClass : '';
this.autoCFG.onSelect = options.onSelect && options.onSelect.constructor == Function ? options.onSelect : null;
this.autoCFG.onShow = options.onShow && options.onShow.constructor == Function ? options.onShow : null;
this.autoCFG.onHide = options.onHide && options.onHide.constructor == Function ? options.onHide : null;
this.autoCFG.onHighlight = options.onHighlight && options.onHighlight.constructor == Function ? options.onHighlight : null;
this.autoCFG.inputWidth = options.inputWidth||false;
this.autoCFG.dataSourceType = options.dataSourceType || 'xml';
this.autoCFG.dataSourceType = this.autoCFG.dataSourceType.toLowerCase();
this.autoCFG.isXML = (this.autoCFG.dataSourceType == 'xml');
this.autoCFG.multiple = options.multiple||false;
this.autoCFG.multipleSeparator = this.autoCFG.multiple ? (options.multipleSeparator||', '):'';
this.autoCFG.autofill = options.autofill ? true : false;
this.autoCFG.delay = Math.abs(parseInt(options.delay)||1000);
if (options.fx && options.fx.constructor == Object) {
if (!options.fx.type || !/fade|slide|blind/.test(options.fx.type)) {
options.fx.type = 'slide';
}
if (options.fx.type == 'slide' && !jQuery.fx.slide)
return;
if (options.fx.type == 'blind' && !jQuery.fx.BlindDirection)
return;
options.fx.duration = Math.abs(parseInt(options.fx.duration)||400);
if (options.fx.duration > this.autoCFG.delay) {
options.fx.duration = this.autoCFG.delay - 100;
}
this.autoCFG.fx = options.fx;
}
this.autoCFG.lastSuggestion = null;
this.autoCFG.inCache = false;
jQuery(this)
.attr('autocomplete', 'off')
.focus(
function()
{
jQuery.iAuto.subject = this;
jQuery.iAuto.lastValue = this.value;
}
)
.keypress(jQuery.iAuto.protect)
.keyup(jQuery.iAuto.autocomplete)
.blur(
function()
{
jQuery.iAuto.timer = window.setTimeout(jQuery.iAuto.clear, 200);
}
);
}
);
}
};
jQuery.iAuto.handleData = function(response, subject, subjectValue, isXML) {
if (response.length == 0) {
return;
}
if (isXML) {
subject.autoCFG.lastSuggestion = jQuery('item',response);
} else {
subject.autoCFG.lastSuggestion = response;
}
size = subject.autoCFG.lastSuggestion.length;
if (size > 0) {
var toWrite = '';
var iterator = function(nr)
{
var text, value;
if (isXML) {
text = jQuery('text', this).text();
value = jQuery('value', this).text();
} else {
text = this.text;
value = this.value;
}
toWrite += '<li rel="' + value + '" dir="' + nr + '" style="cursor: default;">' + text + '</li>';
};
if (isXML) {
subject.autoCFG.lastSuggestion.each(iterator);
} else {
jQuery.each(response, iterator);
}
if (subject.autoCFG.autofill) {
var valueToAdd;
if (isXML) {
valueToAdd = jQuery('value', subject.autoCFG.lastSuggestion[0]).text();
} else {
valueToAdd = subject.autoCFG.lastSuggestion[0].value;
}
subject.value = subjectValue.pre + valueToAdd + subject.autoCFG.multipleSeparator + subjectValue.post;
jQuery.iAuto.selection(
subject, 
subjectValue.item.length != valueToAdd.length ? (subjectValue.pre.length + subjectValue.item.length) : valueToAdd.length,
subjectValue.item.length != valueToAdd.length ? (subjectValue.pre.length + valueToAdd.length) : valueToAdd.length
);
}
if (size > 0) {
jQuery.iAuto.writeItems(subject, toWrite);
} else {
jQuery.iAuto.clear();
}
} else {
jQuery.iAuto.clear();
}
};
jQuery.fn.Autocomplete = jQuery.iAuto.build;