WordPress/wp-includes/js/jquery/suggest.js
Andrew Nacin 2710bcade1 Switch to .min for compressed JS and CSS files.
* This moves our "development" versions from .dev.js to .js (same for css).
 * The compressed version then moves from .js to .min.js (same for css).

By switching to the standard .min convention, it sets expectations for developers,
and works nicely with existing tools such as ack.

fixes #21633.



git-svn-id: http://core.svn.wordpress.org/trunk@21592 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2012-08-23 00:04:18 +00:00

330 lines
7.1 KiB
JavaScript

/*
* jquery.suggest 1.1b - 2007-08-06
* Patched by Mark Jaquith with Alexander Dick's "multiple items" patch to allow for auto-suggesting of more than one tag before submitting
* See: http://www.vulgarisoip.com/2007/06/29/jquerysuggest-an-alternative-jquery-based-autocomplete-library/#comment-7228
*
* Uses code and techniques from following libraries:
* 1. http://www.dyve.net/jquery/?autocomplete
* 2. http://dev.jquery.com/browser/trunk/plugins/interface/iautocompleter.js
*
* All the new stuff written by Peter Vulgaris (www.vulgarisoip.com)
* Feel free to do whatever you want with this file
*
*/
(function($) {
$.suggest = function(input, options) {
var $input, $results, timeout, prevLength, cache, cacheSize;
$input = $(input).attr("autocomplete", "off");
$results = $(document.createElement("ul"));
timeout = false; // hold timeout ID for suggestion results to appear
prevLength = 0; // last recorded length of $input.val()
cache = []; // cache MRU list
cacheSize = 0; // size of cache in chars (bytes?)
$results.addClass(options.resultsClass).appendTo('body');
resetPosition();
$(window)
.load(resetPosition) // just in case user is changing size of page while loading
.resize(resetPosition);
$input.blur(function() {
setTimeout(function() { $results.hide() }, 200);
});
// help IE users if possible
if ( $.browser.msie ) {
try {
$results.bgiframe();
} catch(e) { }
}
// I really hate browser detection, but I don't see any other way
if ($.browser.mozilla)
$input.keypress(processKey); // onkeypress repeats arrow keys in Mozilla/Opera
else
$input.keydown(processKey); // onkeydown repeats arrow keys in IE/Safari
function resetPosition() {
// requires jquery.dimension plugin
var offset = $input.offset();
$results.css({
top: (offset.top + input.offsetHeight) + 'px',
left: offset.left + 'px'
});
}
function processKey(e) {
// handling up/down/escape requires results to be visible
// handling enter/tab requires that AND a result to be selected
if ((/27$|38$|40$/.test(e.keyCode) && $results.is(':visible')) ||
(/^13$|^9$/.test(e.keyCode) && getCurrentResult())) {
if (e.preventDefault)
e.preventDefault();
if (e.stopPropagation)
e.stopPropagation();
e.cancelBubble = true;
e.returnValue = false;
switch(e.keyCode) {
case 38: // up
prevResult();
break;
case 40: // down
nextResult();
break;
case 9: // tab
case 13: // return
selectCurrentResult();
break;
case 27: // escape
$results.hide();
break;
}
} else if ($input.val().length != prevLength) {
if (timeout)
clearTimeout(timeout);
timeout = setTimeout(suggest, options.delay);
prevLength = $input.val().length;
}
}
function suggest() {
var q = $.trim($input.val()), multipleSepPos, items;
if ( options.multiple ) {
multipleSepPos = q.lastIndexOf(options.multipleSep);
if ( multipleSepPos != -1 ) {
q = $.trim(q.substr(multipleSepPos + options.multipleSep.length));
}
}
if (q.length >= options.minchars) {
cached = checkCache(q);
if (cached) {
displayItems(cached['items']);
} else {
$.get(options.source, {q: q}, function(txt) {
$results.hide();
items = parseTxt(txt, q);
displayItems(items);
addToCache(q, items, txt.length);
});
}
} else {
$results.hide();
}
}
function checkCache(q) {
var i;
for (i = 0; i < cache.length; i++)
if (cache[i]['q'] == q) {
cache.unshift(cache.splice(i, 1)[0]);
return cache[0];
}
return false;
}
function addToCache(q, items, size) {
var cached;
while (cache.length && (cacheSize + size > options.maxCacheSize)) {
cached = cache.pop();
cacheSize -= cached['size'];
}
cache.push({
q: q,
size: size,
items: items
});
cacheSize += size;
}
function displayItems(items) {
var html = '', i;
if (!items)
return;
if (!items.length) {
$results.hide();
return;
}
resetPosition(); // when the form moves after the page has loaded
for (i = 0; i < items.length; i++)
html += '<li>' + items[i] + '</li>';
$results.html(html).show();
$results
.children('li')
.mouseover(function() {
$results.children('li').removeClass(options.selectClass);
$(this).addClass(options.selectClass);
})
.click(function(e) {
e.preventDefault();
e.stopPropagation();
selectCurrentResult();
});
}
function parseTxt(txt, q) {
var items = [], tokens = txt.split(options.delimiter), i, token;
// parse returned data for non-empty items
for (i = 0; i < tokens.length; i++) {
token = $.trim(tokens[i]);
if (token) {
token = token.replace(
new RegExp(q, 'ig'),
function(q) { return '<span class="' + options.matchClass + '">' + q + '</span>' }
);
items[items.length] = token;
}
}
return items;
}
function getCurrentResult() {
var $currentResult;
if (!$results.is(':visible'))
return false;
$currentResult = $results.children('li.' + options.selectClass);
if (!$currentResult.length)
$currentResult = false;
return $currentResult;
}
function selectCurrentResult() {
$currentResult = getCurrentResult();
if ($currentResult) {
if ( options.multiple ) {
if ( $input.val().indexOf(options.multipleSep) != -1 ) {
$currentVal = $input.val().substr( 0, ( $input.val().lastIndexOf(options.multipleSep) + options.multipleSep.length ) );
} else {
$currentVal = "";
}
$input.val( $currentVal + $currentResult.text() + options.multipleSep);
$input.focus();
} else {
$input.val($currentResult.text());
}
$results.hide();
if (options.onSelect)
options.onSelect.apply($input[0]);
}
}
function nextResult() {
$currentResult = getCurrentResult();
if ($currentResult)
$currentResult
.removeClass(options.selectClass)
.next()
.addClass(options.selectClass);
else
$results.children('li:first-child').addClass(options.selectClass);
}
function prevResult() {
var $currentResult = getCurrentResult();
if ($currentResult)
$currentResult
.removeClass(options.selectClass)
.prev()
.addClass(options.selectClass);
else
$results.children('li:last-child').addClass(options.selectClass);
}
}
$.fn.suggest = function(source, options) {
if (!source)
return;
options = options || {};
options.multiple = options.multiple || false;
options.multipleSep = options.multipleSep || ", ";
options.source = source;
options.delay = options.delay || 100;
options.resultsClass = options.resultsClass || 'ac_results';
options.selectClass = options.selectClass || 'ac_over';
options.matchClass = options.matchClass || 'ac_match';
options.minchars = options.minchars || 2;
options.delimiter = options.delimiter || '\n';
options.onSelect = options.onSelect || false;
options.maxCacheSize = options.maxCacheSize || 65536;
this.each(function() {
new $.suggest(this, options);
});
return this;
};
})(jQuery);