, nested DOM nodes, etc)
//
function addClasses() {
var str, firstChar, firstWord, spl, $this, hasPrefixes = (opts.prefixes.length > 0);
$($list).children().each(function() {
$this = $(this), firstChar = '';
if(opts.attribute){
str = $.trim($this.attr(opts.attribute)).toLowerCase();
}
if(!opts.attribute || str == ''){
str = $.trim($this.text()).toLowerCase();
}
if (str != '') {
if (hasPrefixes) {
spl = str.split(' ');
if ((spl.length > 1) && ($.inArray(spl[0], opts.prefixes) > -1)) {
firstChar = spl[1].charAt(0);
addLetterClass(firstChar, $this, true);
}
}
firstChar = str.charAt(0);
addLetterClass(firstChar, $this);
}
});
}
function addLetterClass(firstChar, $el, isPrefix) {
if (/\W/.test(firstChar)) firstChar = '-'; // not A-Z, a-z or 0-9, so considered "other"
if (!isNaN(firstChar)) firstChar = '_'; // use '_' if the first char is a number
$el.addClass('ln-' + firstChar);
if (counts[firstChar] == undefined) counts[firstChar] = 0;
counts[firstChar]++;
if (!isPrefix) allCount++;
}
function addDisabledClass() {
for (var i = 0; i < letters.length; i++) {
if (counts[letters[i]] == undefined) $('.' + letters[i], $letters).addClass('ln-disabled');
}
}
function addNoMatchLI() {
$list.append('
' + opts.noMatchText + '');
}
function getLetterCount(el) {
if ($(el).hasClass('all')) return allCount;
else {
var count = counts[$(el).attr('class').split(' ')[0]];
return (count != undefined) ? count : 0; // some letters may not have a count in the hash
}
}
function bindHandlers() {
// sets the top position of the count div in case something above it on the page has resized
//
if (opts.showCounts) {
$wrapper.mouseover(function() {
setLetterCountTop();
});
}
// mouseover for each letter: shows the count above the letter
//
if (opts.showCounts) {
$('a', $letters).mouseover(function() {
var left = $(this).position().left;
var width = ($(this).outerWidth({ margin: true }) - 1) + 'px'; // the -1 is to tweak the width a bit due to a seeming inaccuracy in jquery ui/dimensions outerWidth (same result in FF2 and IE6/7)
var count = getLetterCount(this);
$letterCount.css({ left: left, width: width }).text(count).show(); // set left position and width of letter count, set count text and show it
});
// mouseout for each letter: hide the count
//
$('a', $letters).mouseout(function() {
$letterCount.hide();
});
}
// click handler for letters: shows/hides relevant LI's
//
$('a', $letters).click(function() {
$('a.ln-selected', $letters).removeClass('ln-selected');
var letter = $(this).attr('class').split(' ')[0];
if (letter == 'all') {
$list.children().show();
$list.children('.ln-no-match').hide();
isAll = true;
} else {
if (isAll) {
$list.children().hide();
isAll = false;
} else if (prevLetter != '') $list.children('.ln-' + prevLetter).hide();
var count = getLetterCount(this);
if (count > 0) {
$list.children('.ln-no-match').hide(); // in case it's showing
$list.children('.ln-' + letter).show();
}
else $list.children('.ln-no-match').show();
prevLetter = letter;
}
if ($.cookie && (opts.cookieName != null)) $.cookie(opts.cookieName, letter);
$(this).addClass('ln-selected');
$(this).blur();
if (!firstClick && (opts.onClick != null)) opts.onClick(letter);
else firstClick = false;
return false;
});
}
// creates the HTML for the letter links
//
function createLettersHtml() {
var html = [];
for (var i = 1; i < letters.length; i++) {
if (html.length == 0) html.push('
ALL0-9');
html.push('
' + ((letters[i] == '-') ? '...' : letters[i].toUpperCase()) + '');
}
return '
' + html.join('') + '
' + ((opts.showCounts) ? '
0
' : ''); // the styling for ln-letter-count is to give us a starting point for the element, which will be repositioned when made visible (ie, should not need to be styled by the user)
}
init();
});
};
$.fn.listnav.defaults = {
initLetter: '',
includeAll: true,
includeOther: true,
includeNums: true,
flagDisabled: true,
noMatchText: 'No matching entries',
showCounts: false,
cookieName: null,
onClick: null,
prefixes: [],
attribute: false,
};
})(jQuery);