[2] | 1 | /* |
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| 2 | * Autocomplete - jQuery plugin 1.0.2 |
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| 3 | * |
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| 4 | * Copyright (c) 2007 Dylan Verheul, Dan G. Switzer, Anjesh Tuladhar, Jテカrn Zaefferer |
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| 5 | * |
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| 6 | * Dual licensed under the MIT and GPL licenses: |
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| 7 | * http://www.opensource.org/licenses/mit-license.php |
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| 8 | * http://www.gnu.org/licenses/gpl.html |
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| 9 | * |
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| 10 | * Revision: $Id: jquery.autocomplete.js 5747 2008-06-25 18:30:55Z joern.zaefferer $ |
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| 11 | * |
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| 12 | */ |
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| 13 | |
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| 14 | String.prototype.endsWith = function(str) {return (this.match(str+"$")==str)} |
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| 15 | |
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| 16 | // JG HACK: each autocomplete object should have its own return_key flag. |
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| 17 | var return_key_pressed_for_autocomplete = false; |
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| 18 | |
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| 19 | ;(function($) { |
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| 20 | |
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| 21 | $.fn.extend({ |
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| 22 | autocomplete: function(urlOrData, options) { |
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| 23 | var isUrl = typeof urlOrData == "string"; |
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| 24 | options = $.extend({}, $.Autocompleter.defaults, { |
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| 25 | url: isUrl ? urlOrData : null, |
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| 26 | data: isUrl ? null : urlOrData, |
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| 27 | delay: isUrl ? $.Autocompleter.defaults.delay : 10, |
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| 28 | max: options && !options.scroll ? 10 : 150 |
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| 29 | }, options); |
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| 30 | |
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| 31 | // if highlight is set to false, replace it with a do-nothing function |
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| 32 | options.highlight = options.highlight || function(value) { return value; }; |
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| 33 | |
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| 34 | // if the formatMatch option is not specified, then use formatItem for backwards compatibility |
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| 35 | options.formatMatch = options.formatMatch || options.formatItem; |
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| 36 | |
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| 37 | return this.each(function() { |
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| 38 | new $.Autocompleter(this, options); |
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| 39 | }); |
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| 40 | }, |
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| 41 | result: function(handler) { |
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| 42 | return this.bind("result", handler); |
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| 43 | }, |
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| 44 | search: function(handler) { |
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| 45 | return this.trigger("search", [handler]); |
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| 46 | }, |
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| 47 | flushCache: function() { |
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| 48 | return this.trigger("flushCache"); |
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| 49 | }, |
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| 50 | setOptions: function(options){ |
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| 51 | return this.trigger("setOptions", [options]); |
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| 52 | }, |
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| 53 | unautocomplete: function() { |
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| 54 | return this.trigger("unautocomplete"); |
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| 55 | }, |
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| 56 | // JG: add method to show all data in cache. |
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| 57 | showAllInCache: function() { |
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| 58 | return this.trigger("showAllInCache"); |
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| 59 | } |
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| 60 | }); |
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| 61 | |
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| 62 | $.Autocompleter = function(input, options) { |
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| 63 | |
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| 64 | var KEY = { |
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| 65 | UP: 38, |
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| 66 | DOWN: 40, |
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| 67 | DEL: 46, |
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| 68 | TAB: 9, |
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| 69 | RETURN: 13, |
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| 70 | ESC: 27, |
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| 71 | COMMA: 188, |
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| 72 | PAGEUP: 33, |
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| 73 | PAGEDOWN: 34, |
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| 74 | BACKSPACE: 8, |
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| 75 | COLON: 16 |
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| 76 | }; |
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| 77 | |
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| 78 | // Create $ object for input element |
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| 79 | var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass); |
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| 80 | |
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| 81 | var timeout; |
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| 82 | var previousValue = ""; |
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| 83 | var cache = $.Autocompleter.Cache(options); |
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| 84 | var hasFocus = 0; |
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| 85 | var lastKeyPressCode; |
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| 86 | var config = { |
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| 87 | mouseDownOnSelect: false |
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| 88 | }; |
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| 89 | var select = $.Autocompleter.Select(options, input, selectCurrent, config); |
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| 90 | |
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| 91 | var blockSubmit; |
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| 92 | |
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| 93 | // prevent form submit in opera when selecting with return key |
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| 94 | $.browser.opera && $(input.form).bind("submit.autocomplete", function() { |
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| 95 | if (blockSubmit) { |
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| 96 | blockSubmit = false; |
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| 97 | return false; |
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| 98 | } |
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| 99 | }); |
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| 100 | |
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| 101 | // Firefox only triggers holding down a key with keypress |
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| 102 | $input.bind(($.browser.mozilla ? "keypress" : "keydown") + ".autocomplete", function(event) { |
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| 103 | // track last key pressed |
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| 104 | lastKeyPressCode = event.keyCode; |
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| 105 | switch(event.keyCode) { |
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| 106 | |
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| 107 | case KEY.UP: |
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| 108 | event.preventDefault(); |
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| 109 | if ( select.visible() ) { |
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| 110 | select.prev(); |
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| 111 | } else { |
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| 112 | onChange(0, true); |
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| 113 | } |
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| 114 | break; |
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| 115 | |
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| 116 | case KEY.DOWN: |
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| 117 | event.preventDefault(); |
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| 118 | if ( select.visible() ) { |
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| 119 | select.next(); |
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| 120 | } else { |
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| 121 | onChange(0, true); |
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| 122 | } |
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| 123 | break; |
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| 124 | |
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| 125 | case KEY.PAGEUP: |
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| 126 | event.preventDefault(); |
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| 127 | if ( select.visible() ) { |
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| 128 | select.pageUp(); |
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| 129 | } else { |
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| 130 | onChange(0, true); |
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| 131 | } |
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| 132 | break; |
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| 133 | |
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| 134 | case KEY.PAGEDOWN: |
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| 135 | event.preventDefault(); |
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| 136 | if ( select.visible() ) { |
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| 137 | select.pageDown(); |
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| 138 | } else { |
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| 139 | onChange(0, true); |
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| 140 | } |
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| 141 | break; |
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| 142 | |
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| 143 | // matches also semicolon |
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| 144 | case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA: |
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| 145 | case KEY.TAB: |
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| 146 | case KEY.RETURN: |
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| 147 | if (event.keyCode == KEY.RETURN) |
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| 148 | return_key_pressed_for_autocomplete = false; |
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| 149 | if( selectCurrent() ) { |
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| 150 | // stop default to prevent a form submit, Opera needs special handling |
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| 151 | event.preventDefault(); |
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| 152 | blockSubmit = true; |
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| 153 | |
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| 154 | // JG: set flag to indicate that a selection just occurred using the return key. FYI: |
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| 155 | // event.stopPropagation() does not work. |
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| 156 | if (event.keyCode == KEY.RETURN) |
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| 157 | return_key_pressed_for_autocomplete = true; |
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| 158 | |
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| 159 | return false; |
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| 160 | } |
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| 161 | |
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| 162 | case KEY.ESC: |
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| 163 | select.hide(); |
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| 164 | break; |
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| 165 | case KEY.COLON: |
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| 166 | break; |
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| 167 | |
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| 168 | default: |
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| 169 | clearTimeout(timeout); |
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| 170 | timeout = setTimeout(onChange, options.delay); |
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| 171 | break; |
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| 172 | } |
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| 173 | }).focus(function(){ |
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| 174 | // track whether the field has focus, we shouldn't process any |
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| 175 | // results if the field no longer has focus |
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| 176 | hasFocus++; |
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| 177 | }).blur(function() { |
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| 178 | hasFocus = 0; |
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| 179 | if (!config.mouseDownOnSelect) { |
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| 180 | // JG: if blur and user is not selecting with mouse, hide |
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| 181 | // object. |
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| 182 | select.hide(); |
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| 183 | } |
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| 184 | return this; |
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| 185 | }).click(function() { |
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| 186 | // show select when clicking in a focused field |
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| 187 | if ( hasFocus++ > 1 && !select.visible() ) { |
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| 188 | onChange(0, true); |
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| 189 | } |
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| 190 | return this; |
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| 191 | }).bind("search", function() { |
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| 192 | // TODO why not just specifying both arguments? |
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| 193 | var fn = (arguments.length > 1) ? arguments[1] : null; |
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| 194 | function findValueCallback(q, data) { |
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| 195 | var result; |
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| 196 | if( data && data.length ) { |
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| 197 | for (var i=0; i < data.length; i++) { |
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| 198 | if( data[i].result.toLowerCase() == q.toLowerCase() ) { |
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| 199 | result = data[i]; |
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| 200 | break; |
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| 201 | } |
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| 202 | } |
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| 203 | } |
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| 204 | if( typeof fn == "function" ) fn(result); |
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| 205 | else $input.trigger("result", result && [result.data, result.value]); |
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| 206 | } |
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| 207 | $.each(trimWords($input.val()), function(i, value) { |
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| 208 | request(value, findValueCallback, findValueCallback); |
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| 209 | }); |
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| 210 | |
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| 211 | return this; |
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| 212 | }).bind("flushCache", function() { |
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| 213 | cache.flush(); |
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| 214 | }).bind("setOptions", function() { |
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| 215 | $.extend(options, arguments[1]); |
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| 216 | // if we've updated the data, repopulate |
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| 217 | if ( "data" in arguments[1] ) |
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| 218 | cache.populate(); |
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| 219 | }).bind("unautocomplete", function() { |
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| 220 | select.unbind(); |
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| 221 | $input.unbind(); |
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| 222 | $(input.form).unbind(".autocomplete"); |
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| 223 | }) |
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| 224 | // JG: Show all data in cache. |
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| 225 | .bind("showAllInCache", function() { |
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| 226 | receiveData('', cache.load('')); |
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| 227 | }); |
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| 228 | |
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| 229 | function selectCurrent() { |
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| 230 | var selected = select.selected(); |
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| 231 | if( !selected ) |
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| 232 | return false; |
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| 233 | |
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| 234 | var v = selected.result; |
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| 235 | previousValue = v; |
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| 236 | |
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| 237 | if ( options.multiple ) { |
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| 238 | var words = trimWords($input.val()); |
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| 239 | if ( words.length > 1 ) { |
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| 240 | v = words.slice(0, words.length - 1).join( options.multipleSeparator ) + options.multipleSeparator + v; |
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| 241 | } |
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| 242 | v += options.multipleSeparator; |
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| 243 | } |
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| 244 | |
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| 245 | $input.val(v); |
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| 246 | hideResultsNow(); |
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| 247 | $input.trigger("result", [selected.data, selected.value]); |
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| 248 | return true; |
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| 249 | } |
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| 250 | |
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| 251 | function onChange(crap, skipPrevCheck) { |
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| 252 | if( lastKeyPressCode == KEY.DEL ) { |
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| 253 | select.hide(); |
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| 254 | return; |
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| 255 | } |
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| 256 | |
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| 257 | var currentValue = $input.val(); |
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| 258 | |
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| 259 | if ( !skipPrevCheck && currentValue == previousValue ) |
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| 260 | return; |
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| 261 | |
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| 262 | previousValue = currentValue; |
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| 263 | |
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| 264 | currentValue = lastWord(currentValue); |
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| 265 | if ( currentValue.length >= options.minChars) { |
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| 266 | $input.addClass(options.loadingClass); |
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| 267 | if (!options.matchCase) |
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| 268 | currentValue = currentValue.toLowerCase(); |
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| 269 | request(currentValue, receiveData, hideResultsNow); |
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| 270 | } else { |
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| 271 | stopLoading(); |
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| 272 | select.hide(); |
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| 273 | } |
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| 274 | }; |
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| 275 | |
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| 276 | function trimWords(value) { |
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| 277 | if ( !value ) { |
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| 278 | return [""]; |
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| 279 | } |
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| 280 | var words = value.split( options.multipleSeparator ); |
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| 281 | var result = []; |
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| 282 | $.each(words, function(i, value) { |
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| 283 | if ( $.trim(value) ) |
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| 284 | result[i] = $.trim(value); |
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| 285 | }); |
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| 286 | return result; |
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| 287 | } |
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| 288 | |
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| 289 | function lastWord(value) { |
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| 290 | if ( !options.multiple ) |
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| 291 | return value; |
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| 292 | var words = trimWords(value); |
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| 293 | return words[words.length - 1]; |
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| 294 | } |
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| 295 | |
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| 296 | // fills in the input box w/the first match (assumed to be the best match) |
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| 297 | // q: the term entered |
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| 298 | // sValue: the first matching result |
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| 299 | function autoFill(q, sValue){ |
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| 300 | // autofill in the complete box w/the first match as long as the user hasn't entered in more data |
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| 301 | // if the last user key pressed was backspace, don't autofill |
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| 302 | if( options.autoFill && (lastWord($input.val()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) { |
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| 303 | // fill in the value (keep the case the user has typed) |
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| 304 | $input.val($input.val() + sValue.substring(lastWord(previousValue).length)); |
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| 305 | // select the portion of the value not typed by the user (so the next character will erase) |
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| 306 | $.Autocompleter.Selection(input, previousValue.length, previousValue.length + sValue.length); |
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| 307 | } |
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| 308 | }; |
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| 309 | |
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| 310 | function hideResults() { |
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| 311 | clearTimeout(timeout); |
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| 312 | timeout = setTimeout(hideResultsNow, 200); |
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| 313 | }; |
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| 314 | |
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| 315 | function hideResultsNow() { |
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| 316 | var wasVisible = select.visible(); |
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| 317 | select.hide(); |
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| 318 | clearTimeout(timeout); |
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| 319 | stopLoading(); |
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| 320 | if (options.mustMatch) { |
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| 321 | // call search and run callback |
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| 322 | $input.search( |
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| 323 | function (result){ |
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| 324 | // if no value found, clear the input box |
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| 325 | if( !result ) { |
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| 326 | if (options.multiple) { |
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| 327 | var words = trimWords($input.val()).slice(0, -1); |
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| 328 | $input.val( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") ); |
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| 329 | } |
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| 330 | else |
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| 331 | $input.val( "" ); |
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| 332 | } |
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| 333 | } |
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| 334 | ); |
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| 335 | } |
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| 336 | if (wasVisible) |
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| 337 | // position cursor at end of input field |
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| 338 | $.Autocompleter.Selection(input, input.value.length, input.value.length); |
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| 339 | }; |
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| 340 | |
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| 341 | function receiveData(q, data) { |
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| 342 | if ( data && data.length && hasFocus ) { |
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| 343 | stopLoading(); |
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| 344 | select.display(data, q); |
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| 345 | autoFill(q, data[0].value); |
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| 346 | select.show(); |
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| 347 | } else { |
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| 348 | hideResultsNow(); |
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| 349 | } |
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| 350 | }; |
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| 351 | |
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| 352 | function request(term, success, failure) { |
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| 353 | if (!options.matchCase) |
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| 354 | term = term.toLowerCase(); |
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| 355 | var data = cache.load(term); |
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| 356 | |
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| 357 | // JG: hack: if term ends with ':', kill data to force an ajax request. |
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| 358 | if (term.endsWith(":")) |
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| 359 | data = null; |
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| 360 | |
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| 361 | // recieve the cached data |
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| 362 | if (data && data.length) { |
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| 363 | success(term, data); |
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| 364 | // if an AJAX url has been supplied, try loading the data now |
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| 365 | } else if( (typeof options.url == "string") && (options.url.length > 0) ){ |
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| 366 | var extraParams = { |
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| 367 | timestamp: +new Date() |
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| 368 | }; |
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| 369 | $.each(options.extraParams, function(key, param) { |
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| 370 | extraParams[key] = typeof param == "function" ? param() : param; |
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| 371 | }); |
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| 372 | |
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| 373 | $.ajax({ |
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| 374 | // try to leverage ajaxQueue plugin to abort previous requests |
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| 375 | mode: "abort", |
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| 376 | // limit abortion to this input |
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| 377 | port: "autocomplete" + input.name, |
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| 378 | dataType: options.dataType, |
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| 379 | url: options.url, |
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| 380 | data: $.extend({ |
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| 381 | q: lastWord(term), |
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| 382 | limit: options.max |
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| 383 | }, extraParams), |
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| 384 | success: function(data) { |
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| 385 | var parsed = options.parse && options.parse(data) || parse(data); |
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| 386 | cache.add(term, parsed); |
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| 387 | success(term, parsed); |
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| 388 | } |
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| 389 | }); |
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| 390 | } else { |
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| 391 | // if we have a failure, we need to empty the list -- this prevents the the [TAB] key from selecting the last successful match |
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| 392 | select.emptyList(); |
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| 393 | failure(term); |
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| 394 | } |
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| 395 | }; |
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| 396 | |
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| 397 | function parse(data) { |
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| 398 | var parsed = []; |
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| 399 | var rows = data.split("\n"); |
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| 400 | for (var i=0; i < rows.length; i++) { |
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| 401 | var row = $.trim(rows[i]); |
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| 402 | if (row) { |
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| 403 | row = row.split("|"); |
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| 404 | parsed[parsed.length] = { |
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| 405 | data: row, |
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| 406 | value: row[0], |
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| 407 | result: options.formatResult && options.formatResult(row, row[0]) || row[0] |
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| 408 | }; |
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| 409 | } |
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| 410 | } |
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| 411 | return parsed; |
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| 412 | }; |
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| 413 | |
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| 414 | function stopLoading() { |
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| 415 | $input.removeClass(options.loadingClass); |
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| 416 | }; |
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| 417 | |
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| 418 | }; |
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| 419 | |
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| 420 | $.Autocompleter.defaults = { |
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| 421 | inputClass: "ac_input", |
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| 422 | resultsClass: "ac_results", |
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| 423 | loadingClass: "ac_loading", |
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| 424 | minChars: 1, |
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| 425 | delay: 400, |
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| 426 | matchCase: false, |
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| 427 | matchSubset: true, |
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| 428 | matchContains: false, |
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| 429 | cacheLength: 10, |
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| 430 | max: 100, |
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| 431 | mustMatch: false, |
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| 432 | extraParams: {}, |
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| 433 | selectFirst: true, |
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| 434 | formatItem: function(row) { return row[0]; }, |
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| 435 | formatMatch: null, |
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| 436 | autoFill: false, |
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| 437 | width: 0, |
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| 438 | multiple: false, |
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| 439 | multipleSeparator: ", ", |
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| 440 | highlight: function(value, term) { |
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| 441 | // JG: short-circuit highlighting if term is empty string. |
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| 442 | if (term == "") |
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| 443 | return value; |
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| 444 | return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>"); |
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| 445 | }, |
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| 446 | scroll: true, |
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| 447 | scrollHeight: 180 |
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| 448 | }; |
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| 449 | |
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| 450 | $.Autocompleter.Cache = function(options) { |
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| 451 | |
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| 452 | var data = {}; |
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| 453 | var length = 0; |
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| 454 | |
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| 455 | function matchSubset(s, sub) { |
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| 456 | if (!options.matchCase) |
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| 457 | s = s.toLowerCase(); |
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| 458 | var i = s.indexOf(sub); |
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| 459 | if (i == -1) return false; |
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| 460 | return i == 0 || options.matchContains; |
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| 461 | }; |
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| 462 | |
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| 463 | function add(q, value) { |
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| 464 | if (length > options.cacheLength){ |
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| 465 | flush(); |
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| 466 | } |
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| 467 | if (!data[q]){ |
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| 468 | length++; |
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| 469 | } |
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| 470 | data[q] = value; |
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| 471 | } |
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| 472 | |
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| 473 | function populate(){ |
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| 474 | if( !options.data ) return false; |
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| 475 | // track the matches |
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| 476 | var stMatchSets = {}, |
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| 477 | nullData = 0; |
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| 478 | |
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| 479 | // no url was specified, we need to adjust the cache length to make sure it fits the local data store |
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| 480 | if( !options.url ) options.cacheLength = 1; |
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| 481 | |
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| 482 | // track all options for minChars = 0 |
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| 483 | stMatchSets[""] = []; |
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| 484 | |
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| 485 | // loop through the array and create a lookup structure |
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| 486 | for ( var i = 0, ol = options.data.length; i < ol; i++ ) { |
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| 487 | var rawValue = options.data[i]; |
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| 488 | // if rawValue is a string, make an array otherwise just reference the array |
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| 489 | rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue; |
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| 490 | |
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| 491 | var value = options.formatMatch(rawValue, i+1, options.data.length); |
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| 492 | if ( value === false ) |
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| 493 | continue; |
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| 494 | |
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| 495 | if( !stMatchSets[value] ) { |
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| 496 | stMatchSets[value] = []; |
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| 497 | } |
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| 498 | |
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| 499 | // if the match is a string |
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| 500 | var row = { |
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| 501 | value: value, |
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| 502 | data: rawValue, |
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| 503 | result: options.formatResult && options.formatResult(rawValue) || value |
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| 504 | }; |
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| 505 | |
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| 506 | // push the current match into the set list |
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| 507 | stMatchSets[value].push(row); |
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| 508 | |
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| 509 | // keep track of minChars zero items |
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| 510 | if ( nullData++ < options.max ) { |
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| 511 | stMatchSets[""].push(row); |
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| 512 | } |
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| 513 | }; |
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| 514 | |
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| 515 | // add the data items to the cache |
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| 516 | $.each(stMatchSets, function(i, value) { |
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| 517 | // increase the cache size |
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| 518 | options.cacheLength++; |
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| 519 | // add to the cache |
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| 520 | add(i, value); |
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| 521 | }); |
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| 522 | } |
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| 523 | |
---|
| 524 | // populate any existing data |
---|
| 525 | setTimeout(populate, 25); |
---|
| 526 | |
---|
| 527 | function flush(){ |
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| 528 | data = {}; |
---|
| 529 | length = 0; |
---|
| 530 | } |
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| 531 | |
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| 532 | return { |
---|
| 533 | flush: flush, |
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| 534 | add: add, |
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| 535 | populate: populate, |
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| 536 | load: function(q) { |
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| 537 | if (!options.cacheLength || !length) |
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| 538 | return null; |
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| 539 | |
---|
| 540 | /* |
---|
| 541 | * if dealing w/local data and matchContains than we must make sure |
---|
| 542 | * to loop through all the data collections looking for matches |
---|
| 543 | */ |
---|
| 544 | if( !options.url && options.matchContains ) { |
---|
| 545 | // track all matches |
---|
| 546 | var csub = []; |
---|
| 547 | // loop through all the data grids for matches |
---|
| 548 | for( var k in data ) { |
---|
| 549 | // don't search through the stMatchSets[""] (minChars: 0) cache |
---|
| 550 | // this prevents duplicates |
---|
| 551 | if( k.length > 0 ){ |
---|
| 552 | var c = data[k]; |
---|
| 553 | $.each(c, function(i, x) { |
---|
| 554 | // if we've got a match, add it to the array |
---|
| 555 | if (matchSubset(x.value, q)) { |
---|
| 556 | csub.push(x); |
---|
| 557 | } |
---|
| 558 | }); |
---|
| 559 | } |
---|
| 560 | } |
---|
| 561 | return csub; |
---|
| 562 | } else |
---|
| 563 | // if the exact item exists, use it |
---|
| 564 | if (data[q]) { |
---|
| 565 | return data[q]; |
---|
| 566 | } else |
---|
| 567 | if (options.matchSubset) { |
---|
| 568 | for (var i = q.length - 1; i >= options.minChars; i--) { |
---|
| 569 | var c = data[q.substr(0, i)]; |
---|
| 570 | if (c) { |
---|
| 571 | var csub = []; |
---|
| 572 | $.each(c, function(i, x) { |
---|
| 573 | if ( (x.data.indexOf("#Header") == 0) || |
---|
| 574 | (matchSubset(x.value, q)) ) { |
---|
| 575 | csub[csub.length] = x; |
---|
| 576 | } |
---|
| 577 | }); |
---|
| 578 | return csub; |
---|
| 579 | } |
---|
| 580 | } |
---|
| 581 | |
---|
| 582 | } |
---|
| 583 | return null; |
---|
| 584 | } |
---|
| 585 | }; |
---|
| 586 | }; |
---|
| 587 | |
---|
| 588 | $.Autocompleter.Select = function (options, input, select, config) { |
---|
| 589 | var CLASSES = { |
---|
| 590 | ACTIVE: "ac_over" |
---|
| 591 | }; |
---|
| 592 | |
---|
| 593 | var listItems, |
---|
| 594 | active = -1, |
---|
| 595 | data, |
---|
| 596 | term = "", |
---|
| 597 | needsInit = true, |
---|
| 598 | element, |
---|
| 599 | list; |
---|
| 600 | |
---|
| 601 | // Create results |
---|
| 602 | function init() { |
---|
| 603 | if (!needsInit) |
---|
| 604 | return; |
---|
| 605 | |
---|
| 606 | element = $("<div/>") |
---|
| 607 | .hide() |
---|
| 608 | .addClass(options.resultsClass) |
---|
| 609 | .css("position", "absolute") |
---|
| 610 | .bind("mouseleave", function() { |
---|
| 611 | element.hide(); |
---|
| 612 | }) |
---|
| 613 | .appendTo(document.body); |
---|
| 614 | |
---|
| 615 | list = $("<ul/>").appendTo(element).mouseover( function(event) { |
---|
| 616 | if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') { |
---|
| 617 | active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event)); |
---|
| 618 | // JG: Only add active class if target is not a header. |
---|
| 619 | if (!headerAtPosition(active)) |
---|
| 620 | $(target(event)).addClass(CLASSES.ACTIVE); |
---|
| 621 | } |
---|
| 622 | }).click(function(event) { |
---|
| 623 | // JG: Ignore click on header. |
---|
| 624 | active = $("li", list).index(target(event)); |
---|
| 625 | if (headerAtPosition(active)) |
---|
| 626 | return; |
---|
| 627 | |
---|
| 628 | // Handle click on autocomplete options. |
---|
| 629 | $(target(event)).addClass(CLASSES.ACTIVE); |
---|
| 630 | select(); |
---|
| 631 | // TODO provide option to avoid setting focus again after selection? useful for cleanup-on-focus |
---|
| 632 | input.focus(); |
---|
| 633 | return false; |
---|
| 634 | }).mousedown(function() { |
---|
| 635 | config.mouseDownOnSelect = true; |
---|
| 636 | }).mouseup(function() { |
---|
| 637 | config.mouseDownOnSelect = false; |
---|
| 638 | }); |
---|
| 639 | |
---|
| 640 | if( options.width > 0 ) |
---|
| 641 | element.css("width", options.width); |
---|
| 642 | |
---|
| 643 | needsInit = false; |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | function target(event) { |
---|
| 647 | var element = event.target; |
---|
| 648 | while(element && element.tagName != "LI") |
---|
| 649 | element = element.parentNode; |
---|
| 650 | // more fun with IE, sometimes event.target is empty, just ignore it then |
---|
| 651 | if(!element) |
---|
| 652 | return []; |
---|
| 653 | return element; |
---|
| 654 | } |
---|
| 655 | |
---|
| 656 | // JG: Returns true iff there is a header element at the given position. |
---|
| 657 | function headerAtPosition(position) { |
---|
| 658 | dataAtPosition = data[position].data; |
---|
| 659 | return (dataAtPosition[0].indexOf("#Header") == 0); |
---|
| 660 | } |
---|
| 661 | |
---|
| 662 | function moveSelect(step) { |
---|
| 663 | listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE); |
---|
| 664 | // JG: while active item is a header, continue stepping. |
---|
| 665 | var isHeader = false; |
---|
| 666 | do { |
---|
| 667 | movePosition(step); |
---|
| 668 | isHeader = headerAtPosition(active); |
---|
| 669 | } |
---|
| 670 | while (isHeader); |
---|
| 671 | var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE); |
---|
| 672 | |
---|
| 673 | if(options.scroll) { |
---|
| 674 | var offset = 0; |
---|
| 675 | listItems.slice(0, active).each(function() { |
---|
| 676 | offset += this.offsetHeight; |
---|
| 677 | }); |
---|
| 678 | if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) { |
---|
| 679 | list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight()); |
---|
| 680 | } else if(offset < list.scrollTop()) { |
---|
| 681 | list.scrollTop(offset); |
---|
| 682 | } |
---|
| 683 | } |
---|
| 684 | }; |
---|
| 685 | |
---|
| 686 | function movePosition(step) { |
---|
| 687 | active += step; |
---|
| 688 | if (active < 0) { |
---|
| 689 | active = listItems.size() - 1; |
---|
| 690 | } else if (active >= listItems.size()) { |
---|
| 691 | active = 0; |
---|
| 692 | } |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | function limitNumberOfItems(available) { |
---|
| 696 | return options.max && options.max < available |
---|
| 697 | ? options.max |
---|
| 698 | : available; |
---|
| 699 | } |
---|
| 700 | |
---|
| 701 | function fillList() { |
---|
| 702 | list.empty(); |
---|
| 703 | var max = limitNumberOfItems(data.length); |
---|
| 704 | for (var i=0; i < max; i++) { |
---|
| 705 | if (!data[i]) |
---|
| 706 | continue; |
---|
| 707 | |
---|
| 708 | var formatted = options.formatItem(data[i].data, i+1, max, data[i].value, term); |
---|
| 709 | if ( formatted === false ) |
---|
| 710 | continue; |
---|
| 711 | |
---|
| 712 | // JG: Build list item by formatting the item and choosing a CSS class. |
---|
| 713 | if (headerAtPosition(i)) { |
---|
| 714 | // Found header element; only add header if there are subsequent elements. |
---|
| 715 | if (i != max-1) |
---|
| 716 | var li = $("<li/>").html(data[i].data[1]).addClass("ac_header").appendTo(list)[0]; |
---|
| 717 | } else { |
---|
| 718 | // Found completion element. |
---|
| 719 | var li = $("<li/>").html(options.highlight(formatted, term)).addClass(i%2 == 0 ? "ac_even" : "ac_odd").appendTo(list)[0]; |
---|
| 720 | } |
---|
| 721 | |
---|
| 722 | $.data(li, "ac_data", data[i]); |
---|
| 723 | } |
---|
| 724 | listItems = list.find("li"); |
---|
| 725 | if ( options.selectFirst ) { |
---|
| 726 | listItems.slice(0, 1).addClass(CLASSES.ACTIVE); |
---|
| 727 | active = 0; |
---|
| 728 | } |
---|
| 729 | // apply bgiframe if available |
---|
| 730 | if ( $.fn.bgiframe ) |
---|
| 731 | list.bgiframe(); |
---|
| 732 | } |
---|
| 733 | |
---|
| 734 | return { |
---|
| 735 | display: function(d, q) { |
---|
| 736 | init(); |
---|
| 737 | data = d; |
---|
| 738 | term = q; |
---|
| 739 | fillList(); |
---|
| 740 | }, |
---|
| 741 | next: function() { |
---|
| 742 | moveSelect(1); |
---|
| 743 | }, |
---|
| 744 | prev: function() { |
---|
| 745 | moveSelect(-1); |
---|
| 746 | }, |
---|
| 747 | pageUp: function() { |
---|
| 748 | if (active != 0 && active - 8 < 0) { |
---|
| 749 | moveSelect( -active ); |
---|
| 750 | } else { |
---|
| 751 | moveSelect(-8); |
---|
| 752 | } |
---|
| 753 | }, |
---|
| 754 | pageDown: function() { |
---|
| 755 | if (active != listItems.size() - 1 && active + 8 > listItems.size()) { |
---|
| 756 | moveSelect( listItems.size() - 1 - active ); |
---|
| 757 | } else { |
---|
| 758 | moveSelect(8); |
---|
| 759 | } |
---|
| 760 | }, |
---|
| 761 | hide: function() { |
---|
| 762 | element && element.hide(); |
---|
| 763 | listItems && listItems.removeClass(CLASSES.ACTIVE); |
---|
| 764 | active = -1; |
---|
| 765 | }, |
---|
| 766 | visible : function() { |
---|
| 767 | return element && element.is(":visible"); |
---|
| 768 | }, |
---|
| 769 | current: function() { |
---|
| 770 | return this.visible() && (listItems.filter("." + CLASSES.ACTIVE)[0] || options.selectFirst && listItems[0]); |
---|
| 771 | }, |
---|
| 772 | show: function() { |
---|
| 773 | var offset = $(input).offset(); |
---|
| 774 | element.css({ |
---|
| 775 | width: typeof options.width == "string" || options.width > 0 ? options.width : $(input).width(), |
---|
| 776 | top: offset.top + input.offsetHeight, |
---|
| 777 | left: offset.left |
---|
| 778 | }).show(); |
---|
| 779 | if(options.scroll) { |
---|
| 780 | list.scrollTop(0); |
---|
| 781 | list.css({ |
---|
| 782 | maxHeight: options.scrollHeight, |
---|
| 783 | overflow: 'auto' |
---|
| 784 | }); |
---|
| 785 | |
---|
| 786 | if($.browser.msie && typeof document.body.style.maxHeight === "undefined") { |
---|
| 787 | var listHeight = 0; |
---|
| 788 | listItems.each(function() { |
---|
| 789 | listHeight += this.offsetHeight; |
---|
| 790 | }); |
---|
| 791 | var scrollbarsVisible = listHeight > options.scrollHeight; |
---|
| 792 | list.css('height', scrollbarsVisible ? options.scrollHeight : listHeight ); |
---|
| 793 | if (!scrollbarsVisible) { |
---|
| 794 | // IE doesn't recalculate width when scrollbar disappears |
---|
| 795 | listItems.width( list.width() - parseInt(listItems.css("padding-left")) - parseInt(listItems.css("padding-right")) ); |
---|
| 796 | } |
---|
| 797 | } |
---|
| 798 | |
---|
| 799 | } |
---|
| 800 | }, |
---|
| 801 | selected: function() { |
---|
| 802 | var selected = listItems && listItems.filter("." + CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE); |
---|
| 803 | return selected && selected.length && $.data(selected[0], "ac_data"); |
---|
| 804 | }, |
---|
| 805 | emptyList: function (){ |
---|
| 806 | list && list.empty(); |
---|
| 807 | }, |
---|
| 808 | unbind: function() { |
---|
| 809 | element && element.remove(); |
---|
| 810 | } |
---|
| 811 | }; |
---|
| 812 | }; |
---|
| 813 | |
---|
| 814 | $.Autocompleter.Selection = function(field, start, end) { |
---|
| 815 | if( field.createTextRange ){ |
---|
| 816 | var selRange = field.createTextRange(); |
---|
| 817 | selRange.collapse(true); |
---|
| 818 | selRange.moveStart("character", start); |
---|
| 819 | selRange.moveEnd("character", end); |
---|
| 820 | selRange.select(); |
---|
| 821 | } else if( field.setSelectionRange ){ |
---|
| 822 | field.setSelectionRange(start, end); |
---|
| 823 | } else { |
---|
| 824 | if( field.selectionStart ){ |
---|
| 825 | field.selectionStart = start; |
---|
| 826 | field.selectionEnd = end; |
---|
| 827 | } |
---|
| 828 | } |
---|
| 829 | field.focus(); |
---|
| 830 | }; |
---|
| 831 | |
---|
| 832 | })(jQuery); |
---|