resources/jquery.tipsy/jquery.tipsy.js

   1 // tipsy, facebook style tooltips for jquery
   2 // version 1.0.0a*
   3 // (c) 2008-2010 jason frame [jason@onehackoranother.com]
   4 // released under the MIT license
   5
   6 // * This installation of tipsy includes several local modifications to both Javascript and CSS.
   7 //   Please be careful when upgrading.
   8
   9 (function($) {
  10
  11         function maybeCall(thing, ctx) {
  12                 return (typeof thing == 'function') ? (thing.call(ctx)) : thing;
  13         };
  14
  15     function fixTitle($ele) {
  16         if ($ele.attr('title') || typeof($ele.attr('original-title')) != 'string') {
  17             $ele.attr('original-title', $ele.attr('title') || '').removeAttr('title');
  18         }
  19     }
  20
  21     function Tipsy(element, options) {
  22         this.$element = $(element);
  23         this.options = options;
  24         this.enabled = true;
  25         fixTitle(this.$element);
  26     }
  27
  28     Tipsy.prototype = {
  29         show: function() {
  30             var title = this.getTitle();
  31             if (title && this.enabled) {
  32                 var $tip = this.tip();
  33
  34                 $tip.find('.tipsy-inner')[this.options.html ? 'html' : 'text'](title);
  35                 $tip[0].className = 'tipsy'; // reset classname in case of dynamic gravity
  36                 $tip.remove().css({top: 0, left: 0, visibility: 'hidden', display: 'block'}).appendTo(document.body);
  37
  38                 var pos = $.extend({}, this.$element.offset(), {
  39                     width: this.$element[0].offsetWidth,
  40                     height: this.$element[0].offsetHeight
  41                 });
  42
  43                 var actualWidth = $tip[0].offsetWidth, actualHeight = $tip[0].offsetHeight;
  44                 var gravity = (typeof this.options.gravity == 'function')
  45                                 ? this.options.gravity.call(this.$element[0])
  46                                 : this.options.gravity;
  47
  48                 var tp;
  49                 switch (gravity.charAt(0)) {
  50                     case 'n':
  51                         tp = {top: pos.top + pos.height + this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2};
  52                         break;
  53                     case 's':
  54                         tp = {top: pos.top - actualHeight - this.options.offset, left: pos.left + pos.width / 2 - actualWidth / 2};
  55                         break;
  56                     case 'e':
  57                         tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth - this.options.offset};
  58                         break;
  59                     case 'w':
  60                         tp = {top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width + this.options.offset};
  61                         break;
  62                 }
  63
  64                 if (gravity.length == 2) {
  65                     if (gravity.charAt(1) == 'w') {
  66                         if (this.options.center) {
  67                             tp.left = pos.left + pos.width / 2 - 15;
  68                         } else {
  69                             tp.left = pos.left;
  70                         }
  71                     } else {
  72                         if (this.options.center) {
  73                             tp.left = pos.left + pos.width / 2 - actualWidth + 15;
  74                         } else {
  75                             tp.left = pos.left + pos.width;
  76                         }
  77                     }
  78                 }
  79
  80                 $tip.css(tp).addClass('tipsy-' + gravity);
  81                 if (this.options.className) {
  82                     $tip.addClass(maybeCall(this.options.className, this.$element[0]));
  83                 }
  84
  85                 if (this.options.fade) {
  86                     $tip.stop().css({opacity: 0, display: 'block', visibility: 'visible'}).animate({opacity: this.options.opacity}, 100);
  87                 } else {
  88                     $tip.css({visibility: 'visible', opacity: this.options.opacity});
  89                 }
  90             }
  91         },
  92
  93         hide: function() {
  94             if (this.options.fade) {
  95                 this.tip().stop().fadeOut(100, function() { $(this).remove(); });
  96             } else {
  97                 this.tip().remove();
  98             }
  99         },
 100
 101         getTitle: function() {
 102             var title, $e = this.$element, o = this.options;
 103             fixTitle($e);
 104             var title, o = this.options;
 105             if (typeof o.title == 'string') {
 106                 title = $e.attr(o.title == 'title' ? 'original-title' : o.title);
 107             } else if (typeof o.title == 'function') {
 108                 title = o.title.call($e[0]);
 109             }
 110             title = ('' + title).replace(/(^\s*|\s*$)/, "");
 111             return title || o.fallback;
 112         },
 113
 114         tip: function() {
 115             if (!this.$tip) {
 116                 this.$tip = $('<div class="tipsy"></div>').html('<div class="tipsy-arrow"></div><div class="tipsy-inner"/></div>');
 117             }
 118             return this.$tip;
 119         },
 120
 121         validate: function() {
 122             if (!this.$element[0].parentNode) {
 123                 this.hide();
 124                 this.$element = null;
 125                 this.options = null;
 126             }
 127         },
 128
 129         enable: function() { this.enabled = true; },
 130         disable: function() { this.enabled = false; },
 131         toggleEnabled: function() { this.enabled = !this.enabled; }
 132     };
 133
 134     $.fn.tipsy = function(options) {
 135
 136         if (options === true) {
 137             return this.data('tipsy');
 138         } else if (typeof options == 'string') {
 139             return this.data('tipsy')[options]();
 140         }
 141
 142         options = $.extend({}, $.fn.tipsy.defaults, options);
 143
 144         function get(ele) {
 145             var tipsy = $.data(ele, 'tipsy');
 146             if (!tipsy) {
 147                 tipsy = new Tipsy(ele, $.fn.tipsy.elementOptions(ele, options));
 148                 $.data(ele, 'tipsy', tipsy);
 149             }
 150             return tipsy;
 151         }
 152
 153         function enter() {
 154             var tipsy = get(this);
 155             tipsy.hoverState = 'in';
 156             if (options.delayIn == 0) {
 157                 tipsy.show();
 158             } else {
 159                 setTimeout(function() { if (tipsy.hoverState == 'in') tipsy.show(); }, options.delayIn);
 160             }
 161         };
 162
 163         function leave() {
 164             var tipsy = get(this);
 165             tipsy.hoverState = 'out';
 166             if (options.delayOut == 0) {
 167                 tipsy.hide();
 168             } else {
 169                 setTimeout(function() { if (tipsy.hoverState == 'out') tipsy.hide(); }, options.delayOut);
 170             }
 171         };
 172
 173         if (!options.live) this.each(function() { get(this); });
 174
 175         if (options.trigger != 'manual') {
 176             var binder   = options.live ? 'live' : 'bind',
 177                 eventIn  = options.trigger == 'hover' ? 'mouseenter' : 'focus',
 178                 eventOut = options.trigger == 'hover' ? 'mouseleave' : 'blur';
 179             this[binder](eventIn, enter)[binder](eventOut, leave);
 180         }
 181
 182         return this;
 183
 184     };
 185
 186     $.fn.tipsy.defaults = {
 187         className: null,
 188         delayIn: 0,
 189         delayOut: 0,
 190         fade: true,
 191         fallback: '',
 192         gravity: 'n',
 193         center: true,
 194         html: false,
 195         live: false,
 196         offset: 0,
 197         opacity: 1.0,
 198         title: 'title',
 199         trigger: 'hover'
 200     };
 201
 202     // Overwrite this method to provide options on a per-element basis.
 203     // For example, you could store the gravity in a 'tipsy-gravity' attribute:
 204     // return $.extend({}, options, {gravity: $(ele).attr('tipsy-gravity') || 'n' });
 205     // (remember - do not modify 'options' in place!)
 206     $.fn.tipsy.elementOptions = function(ele, options) {
 207         return $.metadata ? $.extend({}, options, $(ele).metadata()) : options;
 208     };
 209
 210     $.fn.tipsy.autoNS = function() {
 211         return $(this).offset().top > ($(document).scrollTop() + $(window).height() / 2) ? 's' : 'n';
 212     };
 213
 214     $.fn.tipsy.autoWE = function() {
 215         return $(this).offset().left > ($(document).scrollLeft() + $(window).width() / 2) ? 'e' : 'w';
 216     };
 217
 218 })(jQuery);