resources/jquery.ui/jquery.ui.core.js

   1 /*!
   2  * jQuery UI 1.8.2
   3  *
   4  * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
   5  * Dual licensed under the MIT (MIT-LICENSE.txt)
   6  * and GPL (GPL-LICENSE.txt) licenses.
   7  *
   8  * http://docs.jquery.com/UI
   9  */
  10
  11 (function($) {
  12
  13 // prevent duplicate loading
  14 // this is only a problem because we proxy existing functions
  15 // and we don't want to double proxy them
  16 $.ui = $.ui || {};
  17 if ($.ui.version) {
  18         return;
  19 }
  20
  21 //Helper functions and ui object
  22 $.extend($.ui, {
  23         version: "1.8.2",
  24
  25         // $.ui.plugin is deprecated.  Use the proxy pattern instead.
  26         plugin: {
  27                 add: function(module, option, set) {
  28                         var proto = $.ui[module].prototype;
  29                         for(var i in set) {
  30                                 proto.plugins[i] = proto.plugins[i] || [];
  31                                 proto.plugins[i].push([option, set[i]]);
  32                         }
  33                 },
  34                 call: function(instance, name, args) {
  35                         var set = instance.plugins[name];
  36                         if(!set || !instance.element[0].parentNode) { return; }
  37
  38                         for (var i = 0; i < set.length; i++) {
  39                                 if (instance.options[set[i][0]]) {
  40                                         set[i][1].apply(instance.element, args);
  41                                 }
  42                         }
  43                 }
  44         },
  45
  46         contains: function(a, b) {
  47                 return document.compareDocumentPosition
  48                         ? a.compareDocumentPosition(b) & 16
  49                         : a !== b && a.contains(b);
  50         },
  51
  52         hasScroll: function(el, a) {
  53
  54                 //If overflow is hidden, the element might have extra content, but the user wants to hide it
  55                 if ($(el).css('overflow') == 'hidden') { return false; }
  56
  57                 var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop',
  58                         has = false;
  59
  60                 if (el[scroll] > 0) { return true; }
  61
  62                 // TODO: determine which cases actually cause this to happen
  63                 // if the element doesn't have the scroll set, see if it's possible to
  64                 // set the scroll
  65                 el[scroll] = 1;
  66                 has = (el[scroll] > 0);
  67                 el[scroll] = 0;
  68                 return has;
  69         },
  70
  71         isOverAxis: function(x, reference, size) {
  72                 //Determines when x coordinate is over "b" element axis
  73                 return (x > reference) && (x < (reference + size));
  74         },
  75
  76         isOver: function(y, x, top, left, height, width) {
  77                 //Determines when x, y coordinates is over "b" element
  78                 return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
  79         },
  80
  81         keyCode: {
  82                 ALT: 18,
  83                 BACKSPACE: 8,
  84                 CAPS_LOCK: 20,
  85                 COMMA: 188,
  86                 COMMAND: 91,
  87                 COMMAND_LEFT: 91, // COMMAND
  88                 COMMAND_RIGHT: 93,
  89                 CONTROL: 17,
  90                 DELETE: 46,
  91                 DOWN: 40,
  92                 END: 35,
  93                 ENTER: 13,
  94                 ESCAPE: 27,
  95                 HOME: 36,
  96                 INSERT: 45,
  97                 LEFT: 37,
  98                 MENU: 93, // COMMAND_RIGHT
  99                 NUMPAD_ADD: 107,
 100                 NUMPAD_DECIMAL: 110,
 101                 NUMPAD_DIVIDE: 111,
 102                 NUMPAD_ENTER: 108,
 103                 NUMPAD_MULTIPLY: 106,
 104                 NUMPAD_SUBTRACT: 109,
 105                 PAGE_DOWN: 34,
 106                 PAGE_UP: 33,
 107                 PERIOD: 190,
 108                 RIGHT: 39,
 109                 SHIFT: 16,
 110                 SPACE: 32,
 111                 TAB: 9,
 112                 UP: 38,
 113                 WINDOWS: 91 // COMMAND
 114         }
 115 });
 116
 117 //jQuery plugins
 118 $.fn.extend({
 119         _focus: $.fn.focus,
 120         focus: function(delay, fn) {
 121                 return typeof delay === 'number'
 122                         ? this.each(function() {
 123                                 var elem = this;
 124                                 setTimeout(function() {
 125                                         $(elem).focus();
 126                                         (fn && fn.call(elem));
 127                                 }, delay);
 128                         })
 129                         : this._focus.apply(this, arguments);
 130         },
 131
 132         enableSelection: function() {
 133                 return this
 134                         .attr('unselectable', 'off')
 135                         .css('MozUserSelect', '');
 136         },
 137
 138         disableSelection: function() {
 139                 return this
 140                         .attr('unselectable', 'on')
 141                         .css('MozUserSelect', 'none');
 142         },
 143
 144         scrollParent: function() {
 145                 var scrollParent;
 146                 if(($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
 147                         scrollParent = this.parents().filter(function() {
 148                                 return (/(relative|absolute|fixed)/).test($.curCSS(this,'position',1)) && (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
 149                         }).eq(0);
 150                 } else {
 151                         scrollParent = this.parents().filter(function() {
 152                                 return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
 153                         }).eq(0);
 154                 }
 155
 156                 return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
 157         },
 158
 159         zIndex: function(zIndex) {
 160                 if (zIndex !== undefined) {
 161                         return this.css('zIndex', zIndex);
 162                 }
 163
 164                 if (this.length) {
 165                         var elem = $(this[0]), position, value;
 166                         while (elem.length && elem[0] !== document) {
 167                                 // Ignore z-index if position is set to a value where z-index is ignored by the browser
 168                                 // This makes behavior of this function consistent across browsers
 169                                 // WebKit always returns auto if the element is positioned
 170                                 position = elem.css('position');
 171                                 if (position == 'absolute' || position == 'relative' || position == 'fixed')
 172                                 {
 173                                         // IE returns 0 when zIndex is not specified
 174                                         // other browsers return a string
 175                                         // we ignore the case of nested elements with an explicit value of 0
 176                                         // <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
 177                                         value = parseInt(elem.css('zIndex'));
 178                                         if (!isNaN(value) && value != 0) {
 179                                                 return value;
 180                                         }
 181                                 }
 182                                 elem = elem.parent();
 183                         }
 184                 }
 185
 186                 return 0;
 187         }
 188 });
 189
 190
 191 //Additional selectors
 192 $.extend($.expr[':'], {
 193         data: function(elem, i, match) {
 194                 return !!$.data(elem, match[3]);
 195         },
 196
 197         focusable: function(element) {
 198                 var nodeName = element.nodeName.toLowerCase(),
 199                         tabIndex = $.attr(element, 'tabindex');
 200                 return (/input|select|textarea|button|object/.test(nodeName)
 201                         ? !element.disabled
 202                         : 'a' == nodeName || 'area' == nodeName
 203                                 ? element.href || !isNaN(tabIndex)
 204                                 : !isNaN(tabIndex))
 205                         // the element and all of its ancestors must be visible
 206                         // the browser may report that the area is hidden
 207                         && !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
 208         },
 209
 210         tabbable: function(element) {
 211                 var tabIndex = $.attr(element, 'tabindex');
 212                 return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(':focusable');
 213         }
 214 });
 215
 216 })(jQuery);