1/*! 2 * jQuery corner plugin: simple corner rounding 3 * Examples and documentation at: http://jquery.malsup.com/corner/ 4 * version 2.11 (15-JUN-2010) 5 * Requires jQuery v1.3.2 or later 6 * Dual licensed under the MIT and GPL licenses: 7 * http://www.opensource.org/licenses/mit-license.php 8 * http://www.gnu.org/licenses/gpl.html 9 * Authors: Dave Methvin and Mike Alsup 10 */ 11 12/** 13 * corner() takes a single string argument: $('#myDiv').corner("effect corners width") 14 * 15 * effect: name of the effect to apply, such as round, bevel, notch, bite, etc (default is round). 16 * corners: one or more of: top, bottom, tr, tl, br, or bl. (default is all corners) 17 * width: width of the effect; in the case of rounded corners this is the radius. 18 * specify this value using the px suffix such as 10px (yes, it must be pixels). 19 */ 20;(function($) { 21 22var style = document.createElement('div').style, 23 moz = style['MozBorderRadius'] !== undefined, 24 webkit = style['WebkitBorderRadius'] !== undefined, 25 radius = style['borderRadius'] !== undefined || style['BorderRadius'] !== undefined, 26 mode = document.documentMode || 0, 27 noBottomFold = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8), 28 29 expr = $.browser.msie && (function() { 30 var div = document.createElement('div'); 31 try { div.style.setExpression('width','0+0'); div.style.removeExpression('width'); } 32 catch(e) { return false; } 33 return true; 34 })(); 35 36$.support = $.support || {}; 37$.support.borderRadius = moz || webkit || radius; // so you can do: if (!$.support.borderRadius) $('#myDiv').corner(); 38 39function sz(el, p) { 40 return parseInt($.css(el,p))||0; 41}; 42function hex2(s) { 43 var s = parseInt(s).toString(16); 44 return ( s.length < 2 ) ? '0'+s : s; 45}; 46function gpc(node) { 47 while(node) { 48 var v = $.css(node,'backgroundColor'), rgb; 49 if (v && v != 'transparent' && v != 'rgba(0, 0, 0, 0)') { 50 if (v.indexOf('rgb') >= 0) { 51 rgb = v.match(/\d+/g); 52 return '#'+ hex2(rgb[0]) + hex2(rgb[1]) + hex2(rgb[2]); 53 } 54 return v; 55 } 56 if (node.nodeName.toLowerCase() == 'html') 57 break; 58 node = node.parentNode; // keep walking if transparent 59 } 60 return '#ffffff'; 61}; 62 63function getWidth(fx, i, width) { 64 switch(fx) { 65 case 'round': return Math.round(width*(1-Math.cos(Math.asin(i/width)))); 66 case 'cool': return Math.round(width*(1+Math.cos(Math.asin(i/width)))); 67 case 'sharp': return Math.round(width*(1-Math.cos(Math.acos(i/width)))); 68 case 'bite': return Math.round(width*(Math.cos(Math.asin((width-i-1)/width)))); 69 case 'slide': return Math.round(width*(Math.atan2(i,width/i))); 70 case 'jut': return Math.round(width*(Math.atan2(width,(width-i-1)))); 71 case 'curl': return Math.round(width*(Math.atan(i))); 72 case 'tear': return Math.round(width*(Math.cos(i))); 73 case 'wicked': return Math.round(width*(Math.tan(i))); 74 case 'long': return Math.round(width*(Math.sqrt(i))); 75 case 'sculpt': return Math.round(width*(Math.log((width-i-1),width))); 76 case 'dogfold': 77 case 'dog': return (i&1) ? (i+1) : width; 78 case 'dog2': return (i&2) ? (i+1) : width; 79 case 'dog3': return (i&3) ? (i+1) : width; 80 case 'fray': return (i%2)*width; 81 case 'notch': return width; 82 case 'bevelfold': 83 case 'bevel': return i+1; 84 } 85}; 86 87$.fn.corner = function(options) { 88 // in 1.3+ we can fix mistakes with the ready state 89 if (this.length == 0) { 90 if (!$.isReady && this.selector) { 91 var s = this.selector, c = this.context; 92 $(function() { 93 $(s,c).corner(options); 94 }); 95 } 96 return this; 97 } 98 99 return this.each(function(index){ 100 var $this = $(this), 101 // meta values override options 102 o = [$this.attr($.fn.corner.defaults.metaAttr) || '', options || ''].join(' ').toLowerCase(), 103 keep = /keep/.test(o), // keep borders? 104 cc = ((o.match(/cc:(#[0-9a-f]+)/)||[])[1]), // corner color 105 sc = ((o.match(/sc:(#[0-9a-f]+)/)||[])[1]), // strip color 106 width = parseInt((o.match(/(\d+)px/)||[])[1]) || 10, // corner width 107 re = /round|bevelfold|bevel|notch|bite|cool|sharp|slide|jut|curl|tear|fray|wicked|sculpt|long|dog3|dog2|dogfold|dog/, 108 fx = ((o.match(re)||['round'])[0]), 109 fold = /dogfold|bevelfold/.test(o), 110 edges = { T:0, B:1 }, 111 opts = { 112 TL: /top|tl|left/.test(o), TR: /top|tr|right/.test(o), 113 BL: /bottom|bl|left/.test(o), BR: /bottom|br|right/.test(o) 114 }, 115 // vars used in func later
116 strip, pad, cssHeight, j, bot, d, ds, bw, i, w, e, c, common, $horz; 117 118 if ( !opts.TL && !opts.TR && !opts.BL && !opts.BR ) 119 opts = { TL:1, TR:1, BL:1, BR:1 }; 120 121 // support native rounding 122 if ($.fn.corner.defaults.useNative && fx == 'round' && (radius || moz || webkit) && !cc && !sc) { 123 if (opts.TL) 124 $this.css(radius ? 'border-top-left-radius' : moz ? '-moz-border-radius-topleft' : '-webkit-border-top-left-radius', width + 'px'); 125 if (opts.TR) 126 $this.css(radius ? 'border-top-right-radius' : moz ? '-moz-border-radius-topright' : '-webkit-border-top-right-radius', width + 'px'); 127 if (opts.BL) 128 $this.css(radius ? 'border-bottom-left-radius' : moz ? '-moz-border-radius-bottomleft' : '-webkit-border-bottom-left-radius', width + 'px'); 129 if (opts.BR) 130 $this.css(radius ? 'border-bottom-right-radius' : moz ? '-moz-border-radius-bottomright' : '-webkit-border-bottom-right-radius', width + 'px'); 131 return; 132 } 133 134 strip = document.createElement('div'); 135 $(strip).css({ 136 overflow: 'hidden', 137 height: '1px', 138 minHeight: '1px', 139 fontSize: '1px', 140 backgroundColor: sc || 'transparent', 141 borderStyle: 'solid' 142 }); 143 144 pad = { 145 T: parseInt($.css(this,'paddingTop'))||0, R: parseInt($.css(this,'paddingRight'))||0, 146 B: parseInt($.css(this,'paddingBottom'))||0, L: parseInt($.css(this,'paddingLeft'))||0 147 }; 148 149 if (typeof this.style.zoom != undefined) this.style.zoom = 1; // force 'hasLayout' in IE 150 if (!keep) this.style.border = 'none'; 151 strip.style.borderColor = cc || gpc(this.parentNode); 152 cssHeight = $(this).outerHeight(); 153 154 for (j in edges) { 155 bot = edges[j]; 156 // only add stips if needed 157 if ((bot && (opts.BL || opts.BR)) || (!bot && (opts.TL || opts.TR))) { 158 strip.style.borderStyle = 'none '+(opts[j+'R']?'solid':'none')+' none '+(opts[j+'L']?'solid':'none'); 159 d = document.createElement('div'); 160 $(d).addClass('jquery-corner'); 161 ds = d.style; 162 163 bot ? this.appendChild(d) : this.insertBefore(d, this.firstChild); 164 165 if (bot && cssHeight != 'auto') { 166 if ($.css(this,'position') == 'static') 167 this.style.position = 'relative'; 168 ds.position = 'absolute'; 169 ds.bottom = ds.left = ds.padding = ds.margin = '0'; 170 if (expr) 171 ds.setExpression('width', 'this.parentNode.offsetWidth'); 172 else 173 ds.width = '100%'; 174 } 175 else if (!bot && $.browser.msie) { 176 if ($.css(this,'position') == 'static') 177 this.style.position = 'relative'; 178 ds.position = 'absolute'; 179 ds.top = ds.left = ds.right = ds.padding = ds.margin = '0'; 180 181 // fix ie6 problem when blocked element has a border width 182 if (expr) { 183 bw = sz(this,'borderLeftWidth') + sz(this,'borderRightWidth'); 184 ds.setExpression('width', 'this.parentNode.offsetWidth - '+bw+'+ "px"'); 185 } 186 else 187 ds.width = '100%'; 188 } 189 else { 190 ds.position = 'relative'; 191 ds.margin = !bot ? '-'+pad.T+'px -'+pad.R+'px '+(pad.T-width)+'px -'+pad.L+'px' : 192 (pad.B-width)+'px -'+pad.R+'px -'+pad.B+'px -'+pad.L+'px'; 193 } 194 195 for (i=0; i < width; i++) { 196 w = Math.max(0,getWidth(fx,i, width)); 197 e = strip.cloneNode(false); 198 e.style.borderWidth = '0 '+(opts[j+'R']?w:0)+'px 0 '+(opts[j+'L']?w:0)+'px'; 199 bot ? d.appendChild(e) : d.insertBefore(e, d.firstChild); 200 } 201 202 if (fold && $.support.boxModel) { 203 if (bot && noBottomFold) continue; 204 for (c in opts) { 205 if (!opts[c]) continue; 206 if (bot && (c == 'TL' || c == 'TR')) continue; 207 if (!bot && (c == 'BL' || c == 'BR')) continue; 208 209 common = { position: 'absolute', border: 'none', margin: 0, padding: 0, overflow: 'hidden', backgroundColor: strip.style.borderColor };
210 $horz = $('<div/>').css(common).css({ width: width + 'px', height: '1px' }); 211 switch(c) { 212 case 'TL': $horz.css({ bottom: 0, left: 0 }); break; 213 case 'TR': $horz.css({ bottom: 0, right: 0 }); break; 214 case 'BL': $horz.css({ top: 0, left: 0 }); break; 215 case 'BR': $horz.css({ top: 0, right: 0 }); break; 216 } 217 d.appendChild($horz[0]); 218 219 var $vert = $('<div/>').css(common).css({ top: 0, bottom: 0, width: '1px', height: width + 'px' }); 220 switch(c) { 221 case 'TL': $vert.css({ left: width }); break; 222 case 'TR': $vert.css({ right: width }); break; 223 case 'BL': $vert.css({ left: width }); break; 224 case 'BR': $vert.css({ right: width }); break; 225 } 226 d.appendChild($vert[0]); 227 } 228 } 229 } 230 } 231 }); 232}; 233 234$.fn.uncorner = function() { 235 if (radius || moz || webkit) 236 this.css(radius ? 'border-radius' : moz ? '-moz-border-radius' : '-webkit-border-radius', 0); 237 $('div.jquery-corner', this).remove(); 238 return this; 239}; 240 241// expose options 242$.fn.corner.defaults = { 243 useNative: true, // true if plugin should attempt to use native browser support for border radius rounding 244 metaAttr: 'data-corner' // name of meta attribute to use for options 245}; 246 247})(jQuery);
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