/**
* jAc Browser Tab Completion
*
* A Jquery plugin that will allow you to tab-complete a set of strings found in your markup
*
* Copyright 2008, Debuggable, Ltd.
* Hibiskusweg 26c
* 13089 Berlin, Germany
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright 2008, Debuggable, Ltd.
* @link http://debuggable.com/open-source/jtab
* @version 0.1
* @author Tim Koschuetzki <tim@debuggable.com>, Felix Geisendörfer <felix@debuggable.com>
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
$.fn.jac = function(action, options) {
if (typeof action == 'string') {
switch (action) {
case 'suggest':
var settings = this.data('jac.options'), val = this.val(), caret = this.caret(), context = {
val: val,
caret: caret,
before: val.substr(0, caret.begin),
after: val.substr(caret.end)
};
context.word = (context.before.match(settings.word) || [false])[1];
if (!context.word) {
return [];
}
settings.context = context;
var suggest = settings.suggest || function(context, settings) {
var suggestions = [], word = (settings.ignoreCase)
? context.word.toLowerCase()
: context.word;
$.each(settings.items, function() {
var item = settings.ignoreCase
? this.toLowerCase()
: item;
if (item.indexOf(word) === 0) {
var suggestion = (settings.alter)
? settings.alter(String(this), context, settings)
: String(this);
suggestions.push(suggestion);
}
if (suggestions.length && !settings.findAll) {
return false;
}
});
return suggestions;
};
return suggest.call(this, context, settings);
case 'inject':
var settings = this.data('jac.options'), val = this.val(), caret = this.caret();
if (settings.inject) {
settings.inject.call(this, val, {caret: caret}, settings);
return true;
}
val = val.substr(0, caret.begin - settings.context.word.length)
+ options
+ val.substr(caret.end, val.length);
this.val(val);
this.caret(caret.begin + options.length);
return true;
case 'complete':
var suggestions = this.jac('suggest');
if (!suggestions.length) {
return;
}
this.jac('inject', suggestions[0]);
return false;
}
}
if (typeof action == 'object' && action.constructor === Array) {
options = {items: action};
} else if (typeof action == 'object') {
options = action;
}
action = 'init';
options = $.extend({
items: '.author',
ignoreCase: true,
findAll: false,
word: /([\w]+)$/i,
alter: function(suggestion, context, settings) {
var start = context.before == context.word, newLine = (context.before.substr(-(context.word.length+1), 1) == "\n");
if (start || newLine) {
return suggestion+': ';
}
return suggestion+' ';
}
}, options || {});
if (typeof options.items == 'string') {
var items = [];
$(options.items).each(function() {
items.push($(this).text().replace(/[\r\n\t]+/, ''));
})
options.items = items;
}
this.data('jac.options', options);
var keypress = ($.browser.safari)
? 'keydown'
: 'keypress';
return this.bind(keypress, function(e) {
if (e.keyCode != 9) {
return;
}
return $(this).jac('complete');
});
};
if (!$.fn.caret) {
// Copyright (c) 2007-2008 Josh Bush (digitalbush.com) (MIT licensed) -- Part of the masked input plugin
// refactored by Felix Geisendörfer
$.fn.caret = function(begin,end) {
if (this.length == 0) {
return;
}
if (typeof begin == 'number') {
end = (typeof end == 'number')
? end
: begin;
return this.each(function() {
if (this.setSelectionRange){
this.focus();
this.setSelectionRange(begin,end);
} else if (this.createTextRange) {
var range = this.createTextRange();
range.collapse(true);
range.moveEnd('character', end);
range.moveStart('character', begin);
range.select();
}
});
}
if (this[0].setSelectionRange) {
begin = this[0].selectionStart;
end = this[0].selectionEnd;
} else if (document.selection && document.selection.createRange) {
var range = document.selection.createRange();
begin = 0 - range.duplicate().moveStart('character', -100000);
end = begin + range.text.length;
}
return {begin:begin, end:end};
};
}
