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Diffstat (limited to 'plugins/Autocomplete/jquery-autocomplete/jquery.autocomplete.js')
| -rw-r--r-- | plugins/Autocomplete/jquery-autocomplete/jquery.autocomplete.js | 759 |
1 files changed, 759 insertions, 0 deletions
diff --git a/plugins/Autocomplete/jquery-autocomplete/jquery.autocomplete.js b/plugins/Autocomplete/jquery-autocomplete/jquery.autocomplete.js new file mode 100644 index 000000000..5ad9178f8 --- /dev/null +++ b/plugins/Autocomplete/jquery-autocomplete/jquery.autocomplete.js @@ -0,0 +1,759 @@ +/* + * Autocomplete - jQuery plugin 1.0.2 + * + * Copyright (c) 2007 Dylan Verheul, Dan G. Switzer, Anjesh Tuladhar, Jörn Zaefferer + * + * Dual licensed under the MIT and GPL licenses: + * http://www.opensource.org/licenses/mit-license.php + * http://www.gnu.org/licenses/gpl.html + * + * Revision: $Id: jquery.autocomplete.js 5747 2008-06-25 18:30:55Z joern.zaefferer $ + * + */ + +;(function($) { + +$.fn.extend({ + autocomplete: function(urlOrData, options) { + var isUrl = typeof urlOrData == "string"; + options = $.extend({}, $.Autocompleter.defaults, { + url: isUrl ? urlOrData : null, + data: isUrl ? null : urlOrData, + delay: isUrl ? $.Autocompleter.defaults.delay : 10, + max: options && !options.scroll ? 10 : 150 + }, options); + + // if highlight is set to false, replace it with a do-nothing function + options.highlight = options.highlight || function(value) { return value; }; + + // if the formatMatch option is not specified, then use formatItem for backwards compatibility + options.formatMatch = options.formatMatch || options.formatItem; + + return this.each(function() { + new $.Autocompleter(this, options); + }); + }, + result: function(handler) { + return this.bind("result", handler); + }, + search: function(handler) { + return this.trigger("search", [handler]); + }, + flushCache: function() { + return this.trigger("flushCache"); + }, + setOptions: function(options){ + return this.trigger("setOptions", [options]); + }, + unautocomplete: function() { + return this.trigger("unautocomplete"); + } +}); + +$.Autocompleter = function(input, options) { + + var KEY = { + UP: 38, + DOWN: 40, + DEL: 46, + TAB: 9, + RETURN: 13, + ESC: 27, + COMMA: 188, + PAGEUP: 33, + PAGEDOWN: 34, + BACKSPACE: 8 + }; + + // Create $ object for input element + var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass); + + var timeout; + var previousValue = ""; + var cache = $.Autocompleter.Cache(options); + var hasFocus = 0; + var lastKeyPressCode; + var config = { + mouseDownOnSelect: false + }; + var select = $.Autocompleter.Select(options, input, selectCurrent, config); + + var blockSubmit; + + // prevent form submit in opera when selecting with return key + $.browser.opera && $(input.form).bind("submit.autocomplete", function() { + if (blockSubmit) { + blockSubmit = false; + return false; + } + }); + + // only opera doesn't trigger keydown multiple times while pressed, others don't work with keypress at all + $input.bind(($.browser.opera ? "keypress" : "keydown") + ".autocomplete", function(event) { + // track last key pressed + lastKeyPressCode = event.keyCode; + switch(event.keyCode) { + + case KEY.UP: + event.preventDefault(); + if ( select.visible() ) { + select.prev(); + } else { + onChange(0, true); + } + break; + + case KEY.DOWN: + event.preventDefault(); + if ( select.visible() ) { + select.next(); + } else { + onChange(0, true); + } + break; + + case KEY.PAGEUP: + event.preventDefault(); + if ( select.visible() ) { + select.pageUp(); + } else { + onChange(0, true); + } + break; + + case KEY.PAGEDOWN: + event.preventDefault(); + if ( select.visible() ) { + select.pageDown(); + } else { + onChange(0, true); + } + break; + + // matches also semicolon + case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA: + case KEY.TAB: + case KEY.RETURN: + if( selectCurrent() ) { + // stop default to prevent a form submit, Opera needs special handling + event.preventDefault(); + blockSubmit = true; + return false; + } + break; + + case KEY.ESC: + select.hide(); + break; + + default: + clearTimeout(timeout); + timeout = setTimeout(onChange, options.delay); + break; + } + }).focus(function(){ + // track whether the field has focus, we shouldn't process any + // results if the field no longer has focus + hasFocus++; + }).blur(function() { + hasFocus = 0; + if (!config.mouseDownOnSelect) { + hideResults(); + } + }).click(function() { + // show select when clicking in a focused field + if ( hasFocus++ > 1 && !select.visible() ) { + onChange(0, true); + } + }).bind("search", function() { + // TODO why not just specifying both arguments? + var fn = (arguments.length > 1) ? arguments[1] : null; + function findValueCallback(q, data) { + var result; + if( data && data.length ) { + for (var i=0; i < data.length; i++) { + if( data[i].result.toLowerCase() == q.toLowerCase() ) { + result = data[i]; + break; + } + } + } + if( typeof fn == "function" ) fn(result); + else $input.trigger("result", result && [result.data, result.value]); + } + $.each(trimWords($input.val()), function(i, value) { + request(value, findValueCallback, findValueCallback); + }); + }).bind("flushCache", function() { + cache.flush(); + }).bind("setOptions", function() { + $.extend(options, arguments[1]); + // if we've updated the data, repopulate + if ( "data" in arguments[1] ) + cache.populate(); + }).bind("unautocomplete", function() { + select.unbind(); + $input.unbind(); + $(input.form).unbind(".autocomplete"); + }); + + + function selectCurrent() { + var selected = select.selected(); + if( !selected ) + return false; + + var v = selected.result; + previousValue = v; + + if ( options.multiple ) { + var words = trimWords($input.val()); + if ( words.length > 1 ) { + v = words.slice(0, words.length - 1).join( options.multipleSeparator ) + options.multipleSeparator + v; + } + v += options.multipleSeparator; + } + + $input.val(v); + hideResultsNow(); + $input.trigger("result", [selected.data, selected.value]); + return true; + } + + function onChange(crap, skipPrevCheck) { + if( lastKeyPressCode == KEY.DEL ) { + select.hide(); + return; + } + + var currentValue = $input.val(); + + if ( !skipPrevCheck && currentValue == previousValue ) + return; + + previousValue = currentValue; + + currentValue = lastWord(currentValue); + if ( currentValue.length >= options.minChars) { + $input.addClass(options.loadingClass); + if (!options.matchCase) + currentValue = currentValue.toLowerCase(); + request(currentValue, receiveData, hideResultsNow); + } else { + stopLoading(); + select.hide(); + } + }; + + function trimWords(value) { + if ( !value ) { + return [""]; + } + var words = value.split( options.multipleSeparator ); + var result = []; + $.each(words, function(i, value) { + if ( $.trim(value) ) + result[i] = $.trim(value); + }); + return result; + } + + function lastWord(value) { + if ( !options.multiple ) + return value; + var words = trimWords(value); + return words[words.length - 1]; + } + + // fills in the input box w/the first match (assumed to be the best match) + // q: the term entered + // sValue: the first matching result + function autoFill(q, sValue){ + // autofill in the complete box w/the first match as long as the user hasn't entered in more data + // if the last user key pressed was backspace, don't autofill + if( options.autoFill && (lastWord($input.val()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) { + // fill in the value (keep the case the user has typed) + $input.val($input.val() + sValue.substring(lastWord(previousValue).length)); + // select the portion of the value not typed by the user (so the next character will erase) + $.Autocompleter.Selection(input, previousValue.length, previousValue.length + sValue.length); + } + }; + + function hideResults() { + clearTimeout(timeout); + timeout = setTimeout(hideResultsNow, 200); + }; + + function hideResultsNow() { + var wasVisible = select.visible(); + select.hide(); + clearTimeout(timeout); + stopLoading(); + if (options.mustMatch) { + // call search and run callback + $input.search( + function (result){ + // if no value found, clear the input box + if( !result ) { + if (options.multiple) { + var words = trimWords($input.val()).slice(0, -1); + $input.val( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") ); + } + else + $input.val( "" ); + } + } + ); + } + if (wasVisible) + // position cursor at end of input field + $.Autocompleter.Selection(input, input.value.length, input.value.length); + }; + + function receiveData(q, data) { + if ( data && data.length && hasFocus ) { + stopLoading(); + select.display(data, q); + autoFill(q, data[0].value); + select.show(); + } else { + hideResultsNow(); + } + }; + + function request(term, success, failure) { + if (!options.matchCase) + term = term.toLowerCase(); + var data = cache.load(term); + // recieve the cached data + if (data && data.length) { + success(term, data); + // if an AJAX url has been supplied, try loading the data now + } else if( (typeof options.url == "string") && (options.url.length > 0) ){ + + var extraParams = { + timestamp: +new Date() + }; + $.each(options.extraParams, function(key, param) { + extraParams[key] = typeof param == "function" ? param() : param; + }); + + $.ajax({ + // try to leverage ajaxQueue plugin to abort previous requests + mode: "abort", + // limit abortion to this input + port: "autocomplete" + input.name, + dataType: options.dataType, + url: options.url, + data: $.extend({ + q: lastWord(term), + limit: options.max + }, extraParams), + success: function(data) { + var parsed = options.parse && options.parse(data) || parse(data); + cache.add(term, parsed); + success(term, parsed); + } + }); + } else { + // if we have a failure, we need to empty the list -- this prevents the the [TAB] key from selecting the last successful match + select.emptyList(); + failure(term); + } + }; + + function parse(data) { + var parsed = []; + var rows = data.split("\n"); + for (var i=0; i < rows.length; i++) { + var row = $.trim(rows[i]); + if (row) { + row = row.split("|"); + parsed[parsed.length] = { + data: row, + value: row[0], + result: options.formatResult && options.formatResult(row, row[0]) || row[0] + }; + } + } + return parsed; + }; + + function stopLoading() { + $input.removeClass(options.loadingClass); + }; + +}; + +$.Autocompleter.defaults = { + inputClass: "ac_input", + resultsClass: "ac_results", + loadingClass: "ac_loading", + minChars: 1, + delay: 400, + matchCase: false, + matchSubset: true, + matchContains: false, + cacheLength: 10, + max: 100, + mustMatch: false, + extraParams: {}, + selectFirst: true, + formatItem: function(row) { return row[0]; }, + formatMatch: null, + autoFill: false, + width: 0, + multiple: false, + multipleSeparator: ", ", + highlight: function(value, term) { + return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>"); + }, + scroll: true, + scrollHeight: 180 +}; + +$.Autocompleter.Cache = function(options) { + + var data = {}; + var length = 0; + + function matchSubset(s, sub) { + if (!options.matchCase) + s = s.toLowerCase(); + var i = s.indexOf(sub); + if (i == -1) return false; + return i == 0 || options.matchContains; + }; + + function add(q, value) { + if (length > options.cacheLength){ + flush(); + } + if (!data[q]){ + length++; + } + data[q] = value; + } + + function populate(){ + if( !options.data ) return false; + // track the matches + var stMatchSets = {}, + nullData = 0; + + // no url was specified, we need to adjust the cache length to make sure it fits the local data store + if( !options.url ) options.cacheLength = 1; + + // track all options for minChars = 0 + stMatchSets[""] = []; + + // loop through the array and create a lookup structure + for ( var i = 0, ol = options.data.length; i < ol; i++ ) { + var rawValue = options.data[i]; + // if rawValue is a string, make an array otherwise just reference the array + rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue; + + var value = options.formatMatch(rawValue, i+1, options.data.length); + if ( value === false ) + continue; + + var firstChar = value.charAt(0).toLowerCase(); + // if no lookup array for this character exists, look it up now + if( !stMatchSets[firstChar] ) + stMatchSets[firstChar] = []; + + // if the match is a string + var row = { + value: value, + data: rawValue, + result: options.formatResult && options.formatResult(rawValue) || value + }; + + // push the current match into the set list + stMatchSets[firstChar].push(row); + + // keep track of minChars zero items + if ( nullData++ < options.max ) { + stMatchSets[""].push(row); + } + }; + + // add the data items to the cache + $.each(stMatchSets, function(i, value) { + // increase the cache size + options.cacheLength++; + // add to the cache + add(i, value); + }); + } + + // populate any existing data + setTimeout(populate, 25); + + function flush(){ + data = {}; + length = 0; + } + + return { + flush: flush, + add: add, + populate: populate, + load: function(q) { + if (!options.cacheLength || !length) + return null; + /* + * if dealing w/local data and matchContains than we must make sure + * to loop through all the data collections looking for matches + */ + if( !options.url && options.matchContains ){ + // track all matches + var csub = []; + // loop through all the data grids for matches + for( var k in data ){ + // don't search through the stMatchSets[""] (minChars: 0) cache + // this prevents duplicates + if( k.length > 0 ){ + var c = data[k]; + $.each(c, function(i, x) { + // if we've got a match, add it to the array + if (matchSubset(x.value, q)) { + csub.push(x); + } + }); + } + } + return csub; + } else + // if the exact item exists, use it + if (data[q]){ + return data[q]; + } else + if (options.matchSubset) { + for (var i = q.length - 1; i >= options.minChars; i--) { + var c = data[q.substr(0, i)]; + if (c) { + var csub = []; + $.each(c, function(i, x) { + if (matchSubset(x.value, q)) { + csub[csub.length] = x; + } + }); + return csub; + } + } + } + return null; + } + }; +}; + +$.Autocompleter.Select = function (options, input, select, config) { + var CLASSES = { + ACTIVE: "ac_over" + }; + + var listItems, + active = -1, + data, + term = "", + needsInit = true, + element, + list; + + // Create results + function init() { + if (!needsInit) + return; + element = $("<div/>") + .hide() + .addClass(options.resultsClass) + .css("position", "absolute") + .appendTo(document.body); + + list = $("<ul/>").appendTo(element).mouseover( function(event) { + if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') { + active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event)); + $(target(event)).addClass(CLASSES.ACTIVE); + } + }).click(function(event) { + $(target(event)).addClass(CLASSES.ACTIVE); + select(); + // TODO provide option to avoid setting focus again after selection? useful for cleanup-on-focus + input.focus(); + return false; + }).mousedown(function() { + config.mouseDownOnSelect = true; + }).mouseup(function() { + config.mouseDownOnSelect = false; + }); + + if( options.width > 0 ) + element.css("width", options.width); + + needsInit = false; + } + + function target(event) { + var element = event.target; + while(element && element.tagName != "LI") + element = element.parentNode; + // more fun with IE, sometimes event.target is empty, just ignore it then + if(!element) + return []; + return element; + } + + function moveSelect(step) { + listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE); + movePosition(step); + var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE); + if(options.scroll) { + var offset = 0; + listItems.slice(0, active).each(function() { + offset += this.offsetHeight; + }); + if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) { + list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight()); + } else if(offset < list.scrollTop()) { + list.scrollTop(offset); + } + } + }; + + function movePosition(step) { + active += step; + if (active < 0) { + active = listItems.size() - 1; + } else if (active >= listItems.size()) { + active = 0; + } + } + + function limitNumberOfItems(available) { + return options.max && options.max < available + ? options.max + : available; + } + + function fillList() { + list.empty(); + var max = limitNumberOfItems(data.length); + for (var i=0; i < max; i++) { + if (!data[i]) + continue; + var formatted = options.formatItem(data[i].data, i+1, max, data[i].value, term); + if ( formatted === false ) + continue; + var li = $("<li/>").html( options.highlight(formatted, term) ).addClass(i%2 == 0 ? "ac_even" : "ac_odd").appendTo(list)[0]; + $.data(li, "ac_data", data[i]); + } + listItems = list.find("li"); + if ( options.selectFirst ) { + listItems.slice(0, 1).addClass(CLASSES.ACTIVE); + active = 0; + } + // apply bgiframe if available + if ( $.fn.bgiframe ) + list.bgiframe(); + } + + return { + display: function(d, q) { + init(); + data = d; + term = q; + fillList(); + }, + next: function() { + moveSelect(1); + }, + prev: function() { + moveSelect(-1); + }, + pageUp: function() { + if (active != 0 && active - 8 < 0) { + moveSelect( -active ); + } else { + moveSelect(-8); + } + }, + pageDown: function() { + if (active != listItems.size() - 1 && active + 8 > listItems.size()) { + moveSelect( listItems.size() - 1 - active ); + } else { + moveSelect(8); + } + }, + hide: function() { + element && element.hide(); + listItems && listItems.removeClass(CLASSES.ACTIVE); + active = -1; + }, + visible : function() { + return element && element.is(":visible"); + }, + current: function() { + return this.visible() && (listItems.filter("." + CLASSES.ACTIVE)[0] || options.selectFirst && listItems[0]); + }, + show: function() { + var offset = $(input).offset(); + element.css({ + width: typeof options.width == "string" || options.width > 0 ? options.width : $(input).width(), + top: offset.top + input.offsetHeight, + left: offset.left + }).show(); + if(options.scroll) { + list.scrollTop(0); + list.css({ + maxHeight: options.scrollHeight, + overflow: 'auto' + }); + + if($.browser.msie && typeof document.body.style.maxHeight === "undefined") { + var listHeight = 0; + listItems.each(function() { + listHeight += this.offsetHeight; + }); + var scrollbarsVisible = listHeight > options.scrollHeight; + list.css('height', scrollbarsVisible ? options.scrollHeight : listHeight ); + if (!scrollbarsVisible) { + // IE doesn't recalculate width when scrollbar disappears + listItems.width( list.width() - parseInt(listItems.css("padding-left")) - parseInt(listItems.css("padding-right")) ); + } + } + + } + }, + selected: function() { + var selected = listItems && listItems.filter("." + CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE); + return selected && selected.length && $.data(selected[0], "ac_data"); + }, + emptyList: function (){ + list && list.empty(); + }, + unbind: function() { + element && element.remove(); + } + }; +}; + +$.Autocompleter.Selection = function(field, start, end) { + if( field.createTextRange ){ + var selRange = field.createTextRange(); + selRange.collapse(true); + selRange.moveStart("character", start); + selRange.moveEnd("character", end); + selRange.select(); + } else if( field.setSelectionRange ){ + field.setSelectionRange(start, end); + } else { + if( field.selectionStart ){ + field.selectionStart = start; + field.selectionEnd = end; + } + } + field.focus(); +}; + +})(jQuery);
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