1/*! 2 * jQuery.ScrollTo 3 * Copyright (c) 2007-2012 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com 4 * Dual licensed under MIT and GPL. 5 * Date: 4/09/2012 6 * 7 * @projectDescription Easy element scrolling using jQuery. 8 * http://flesler.blogspot.com/2007/10/jqueryscrollto.html 9 * @author Ariel Flesler 10 * @version 1.4.3.1 11 * 12 * @id jQuery.scrollTo 13 * @id jQuery.fn.scrollTo 14 * @param {String, Number, DOMElement, jQuery, Object} target Where to scroll the matched elements. 15 * The different options for target are: 16 * - A number position (will be applied to all axes). 17 * - A string position ('44', '100px', '+=90', etc ) will be applied to all axes 18 * - A jQuery/DOM element ( logically, child of the element to scroll ) 19 * - A string selector, that will be relative to the element to scroll ( 'li:eq(2)', etc ) 20 * - A hash { top:x, left:y }, x and y can be any kind of number/string like above. 21 * - A percentage of the container's dimension/s, for example: 50% to go to the middle. 22 * - The string 'max' for go-to-end. 23 * @param {Number, Function} duration The OVERALL length of the animation, this argument can be the settings object instead. 24 * @param {Object,Function} settings Optional set of settings or the onAfter callback. 25 * @option {String} axis Which axis must be scrolled, use 'x', 'y', 'xy' or 'yx'. 26 * @option {Number, Function} duration The OVERALL length of the animation. 27 * @option {String} easing The easing method for the animation. 28 * @option {Boolean} margin If true, the margin of the target element will be deducted from the final position. 29 * @option {Object, Number} offset Add/deduct from the end position. One number for both axes or { top:x, left:y }. 30 * @option {Object, Number} over Add/deduct the height/width multiplied by 'over', can be { top:x, left:y } when using both axes. 31 * @option {Boolean} queue If true, and both axis are given, the 2nd axis will only be animated after the first one ends. 32 * @option {Function} onAfter Function to be called after the scrolling ends. 33 * @option {Function} onAfterFirst If queuing is activated, this function will be called after the first scrolling ends. 34 * @return {jQuery} Returns the same jQuery object, for chaining. 35 * 36 * @desc Scroll to a fixed position 37 * @example $('div').scrollTo( 340 ); 38 * 39 * @desc Scroll relatively to the actual position 40 * @example $('div').scrollTo( '+=340px', { axis:'y' } ); 41 * 42 * @desc Scroll using a selector (relative to the scrolled element) 43 * @example $('div').scrollTo( 'p.paragraph:eq(2)', 500, { easing:'swing', queue:true, axis:'xy' } ); 44 * 45 * @desc Scroll to a DOM element (same for jQuery object) 46 * @example var second_child = document.getElementById('container').firstChild.nextSibling; 47 * $('#container').scrollTo( second_child, { duration:500, axis:'x', onAfter:function(){ 48 * alert('scrolled!!'); 49 * }}); 50 * 51 * @desc Scroll on both axes, to different values 52 * @example $('div').scrollTo( { top: 300, left:'+=200' }, { axis:'xy', offset:-20 } ); 53 */ 54 55;(function( $ ){ 56 57 var $scrollTo = $.scrollTo = function( target, duration, settings ){ 58 $(window).scrollTo( target, duration, settings ); 59 }; 60 61 $scrollTo.defaults = { 62 axis:'xy', 63 duration: parseFloat($.fn.jquery) >= 1.3 ? 0 : 1, 64 limit:true 65 }; 66 67 // Returns the element that needs to be animated to scroll the window. 68 // Kept for backwards compatibility (specially for localScroll & serialScroll) 69 $scrollTo.window = function( scope ){ 70 return $(window)._scrollable(); 71 }; 72 73 // Hack, hack, hack :) 74 // Returns the real elements to scroll (supports window/iframes, documents and regular nodes) 75 $.fn._scrollable = function(){ 76 return this.map(function(){ 77 var elem = this, 78 isWin = !elem.nodeName || $.inArray( elem.nodeName.toLowerCase(), ['iframe','#document','html','body'] ) != -1; 79 80 if( !isWin ) 81 return elem; 82 83 var doc = (elem.contentWindow || elem).document || elem.ownerDocument || elem; 84 85 return /webkit/i.test(navigator.userAgent) || doc.compatMode == 'BackCompat' ? 86 doc.body : 87 doc.documentElement; 88 }); 89 }; 90 91 $.fn.scrollTo = function( target, duration, settings ){ 92 if( typeof duration == 'object' ){ 93 settings = duration; 94 duration = 0; 95 } 96 if( typeof settings == 'function' ) 97 settings = { onAfter:settings }; 98 99 if( target == 'max' ) 100 target = 9e9; 101 102 settings = $.extend( {}, $scrollTo.defaults, settings ); 103 // Speed is still recognized for backwards compatibility 104 duration = duration || settings.duration; 105 // Make sure the settings are given right 106 settings.queue = settings.queue && settings.axis.length > 1; 107 108 if( settings.queue ) 109 // Let's keep the overall duration 110 duration /= 2; 111 settings.offset = both( settings.offset ); 112 settings.over = both( settings.over ); 113 114 return this._scrollable().each(function(){ 115 // Null target yields nothing, just like jQuery does 116 if (target == null) return; 117 118 var elem = this, 119 $elem = $(elem), 120 targ = target, toff, attr = {}, 121 win = $elem.is('html,body'); 122 123 switch( typeof targ ){ 124 // A number will pass the regex 125 case 'number': 126 case 'string': 127 if( /^([+-]=)?\d+(\.\d+)?(px|%)?$/.test(targ) ){ 128 targ = both( targ ); 129 // We are done 130 break; 131 } 132 // Relative selector, no break! 133 targ = $(targ,this); 134 if (!targ.length) return; 135 case 'object': 136 // DOMElement / jQuery 137 if( targ.is || targ.style ) 138 // Get the real position of the target 139 toff = (targ = $(targ)).offset(); 140 } 141 $.each( settings.axis.split(''), function( i, axis ){ 142 var Pos = axis == 'x' ? 'Left' : 'Top', 143 pos = Pos.toLowerCase(), 144 key = 'scroll' + Pos, 145 old = elem[key], 146 max = $scrollTo.max(elem, axis); 147 148 if( toff ){// jQuery / DOMElement 149 attr[key] = toff[pos] + ( win ? 0 : old - $elem.offset()[pos] ); 150 151 // If it's a dom element, reduce the margin 152 if( settings.margin ){ 153 attr[key] -= parseInt(targ.css('margin'+Pos)) || 0; 154 attr[key] -= parseInt(targ.css('border'+Pos+'Width')) || 0; 155 } 156 157 attr[key] += settings.offset[pos] || 0; 158 159 if( settings.over[pos] ) 160 // Scroll to a fraction of its width/height
161 attr[key] += targ[axis=='x'?'width':'height']() * settings.over[pos]; 162 }else{ 163 var val = targ[pos]; 164 // Handle percentage values 165 attr[key] = val.slice && val.slice(-1) == '%' ? 166 parseFloat(val) / 100 * max 167 : val; 168 } 169 170 // Number or 'number' 171 if( settings.limit && /^\d+$/.test(attr[key]) ) 172 // Check the limits 173 attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max ); 174 175 // Queueing axes 176 if( !i && settings.queue ){ 177 // Don't waste time animating, if there's no need. 178 if( old != attr[key] ) 179 // Intermediate animation 180 animate( settings.onAfterFirst ); 181 // Don't animate this axis again in the next iteration. 182 delete attr[key]; 183 } 184 }); 185 186 animate( settings.onAfter ); 187 188 function animate( callback ){ 189 $elem.animate( attr, duration, settings.easing, callback && function(){ 190 callback.call(this, target, settings); 191 }); 192 }; 193 194 }).end(); 195 }; 196 197 // Max scrolling position, works on quirks mode 198 // It only fails (not too badly) on IE, quirks mode. 199 $scrollTo.max = function( elem, axis ){ 200 var Dim = axis == 'x' ? 'Width' : 'Height', 201 scroll = 'scroll'+Dim; 202 203 if( !$(elem).is('html,body') ) 204 return elem[scroll] - $(elem)[Dim.toLowerCase()](); 205 206 var size = 'client' + Dim, 207 html = elem.ownerDocument.documentElement, 208 body = elem.ownerDocument.body; 209 210 return Math.max( html[scroll], body[scroll] ) 211 - Math.min( html[size] , body[size] ); 212 }; 213 214 function both( val ){ 215 return typeof val == 'object' ? val : { top:val, left:val }; 216 }; 217 218})( jQuery );
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.