1/*! 2 * jQuery corner plugin: simple corner rounding 3 * Examples and documentation at: http://jquery.malsup.com/corner/ 4 * version 2.13 (19-FEB-2013) 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 msie = /MSIE/.test(navigator.userAgent); 23 24var style = document.createElement('div').style, 25 moz = style['MozBorderRadius'] !== undefined, 26 webkit = style['WebkitBorderRadius'] !== undefined, 27 radius = style['borderRadius'] !== undefined || style['BorderRadius'] !== undefined, 28 mode = document.documentMode || 0, 29 noBottomFold = msie && (!mode || mode < 8), 30 31 expr = msie && (function() { 32 var div = document.createElement('div'); 33 try { div.style.setExpression('width','0+0'); div.style.removeExpression('width'); } 34 catch(e) { return false; } 35 return true; 36 })(); 37 38$.support = $.support || {}; 39$.support.borderRadius = moz || webkit || radius; // so you can do: if (!$.support.borderRadius) $('#myDiv').corner(); 40 41function sz(el, p) { 42 return parseInt($.css(el,p),10)||0; 43} 44function hex2(s) { 45 s = parseInt(s,10).toString(16); 46 return ( s.length < 2 ) ? '0'+s : s; 47} 48function gpc(node) { 49 while(node) { 50 var v = $.css(node,'backgroundColor'), rgb; 51 if (v && v != 'transparent' && v != 'rgba(0, 0, 0, 0)') { 52 if (v.indexOf('rgb') >= 0) { 53 rgb = v.match(/\d+/g); 54 return '#'+ hex2(rgb[0]) + hex2(rgb[1]) + hex2(rgb[2]); 55 } 56 return v; 57 } 58 if (node.nodeName.toLowerCase() == 'html') 59 break; 60 node = node.parentNode; // keep walking if transparent 61 } 62 return '#ffffff'; 63} 64 65function getWidth(fx, i, width) { 66 switch(fx) { 67 case 'round': return Math.round(width*(1-Math.cos(Math.asin(i/width)))); 68 case 'cool': return Math.round(width*(1+Math.cos(Math.asin(i/width)))); 69 case 'sharp': return width-i; 70 case 'bite': return Math.round(width*(Math.cos(Math.asin((width-i-1)/width)))); 71 case 'slide': return Math.round(width*(Math.atan2(i,width/i))); 72 case 'jut': return Math.round(width*(Math.atan2(width,(width-i-1)))); 73 case 'curl': return Math.round(width*(Math.atan(i))); 74 case 'tear': return Math.round(width*(Math.cos(i))); 75 case 'wicked': return Math.round(width*(Math.tan(i))); 76 case 'long': return Math.round(width*(Math.sqrt(i))); 77 case 'sculpt': return Math.round(width*(Math.log((width-i-1),width))); 78 case 'dogfold': 79 case 'dog': return (i&1) ? (i+1) : width; 80 case 'dog2': return (i&2) ? (i+1) : width; 81 case 'dog3': return (i&3) ? (i+1) : width; 82 case 'fray': return (i%2)*width; 83 case 'notch': return width; 84 case 'bevelfold': 85 case 'bevel': return i+1; 86 case 'steep': return i/2 + 1; 87 case 'invsteep':return (width-i)/2+1; 88 } 89} 90 91$.fn.corner = function(options) { 92 // in 1.3+ we can fix mistakes with the ready state 93 if (this.length === 0) { 94 if (!$.isReady && this.selector) { 95 var s = this.selector, c = this.context; 96 $(function() { 97 $(s,c).corner(options); 98 }); 99 } 100 return this; 101 } 102 103 return this.each(function(index){ 104 var $this = $(this), 105 // meta values override options 106 o = [$this.attr($.fn.corner.defaults.metaAttr) || '', options || ''].join(' ').toLowerCase(), 107 keep = /keep/.test(o), // keep borders? 108 cc = ((o.match(/cc:(#[0-9a-f]+)/)||[])[1]), // corner color 109 sc = ((o.match(/sc:(#[0-9a-f]+)/)||[])[1]), // strip color 110 width = parseInt((o.match(/(\d+)px/)||[])[1],10) || 10, // corner width 111 re = /round|bevelfold|bevel|notch|bite|cool|sharp|slide|jut|curl|tear|fray|wicked|sculpt|long|dog3|dog2|dogfold|dog|invsteep|steep/, 112 fx = ((o.match(re)||['round'])[0]), 113 fold = /dogfold|bevelfold/.test(o), 114 edges = { T:0, B:1 }, 115 opts = { 116 TL: /top|tl|left/.test(o), TR: /top|tr|right/.test(o), 117 BL: /bottom|bl|left/.test(o), BR: /bottom|br|right/.test(o) 118 }, 119 // vars used in func later
120 strip, pad, cssHeight, j, bot, d, ds, bw, i, w, e, c, common, $horz; 121 122 if ( !opts.TL && !opts.TR && !opts.BL && !opts.BR ) 123 opts = { TL:1, TR:1, BL:1, BR:1 }; 124 125 // support native rounding 126 if ($.fn.corner.defaults.useNative && fx == 'round' && (radius || moz || webkit) && !cc && !sc) { 127 if (opts.TL) 128 $this.css(radius ? 'border-top-left-radius' : moz ? '-moz-border-radius-topleft' : '-webkit-border-top-left-radius', width + 'px'); 129 if (opts.TR) 130 $this.css(radius ? 'border-top-right-radius' : moz ? '-moz-border-radius-topright' : '-webkit-border-top-right-radius', width + 'px'); 131 if (opts.BL) 132 $this.css(radius ? 'border-bottom-left-radius' : moz ? '-moz-border-radius-bottomleft' : '-webkit-border-bottom-left-radius', width + 'px'); 133 if (opts.BR) 134 $this.css(radius ? 'border-bottom-right-radius' : moz ? '-moz-border-radius-bottomright' : '-webkit-border-bottom-right-radius', width + 'px'); 135 return; 136 } 137 138 strip = document.createElement('div'); 139 $(strip).css({ 140 overflow: 'hidden', 141 height: '1px', 142 minHeight: '1px', 143 fontSize: '1px', 144 backgroundColor: sc || 'transparent', 145 borderStyle: 'solid' 146 }); 147 148 pad = { 149 T: parseInt($.css(this,'paddingTop'),10)||0, R: parseInt($.css(this,'paddingRight'),10)||0, 150 B: parseInt($.css(this,'paddingBottom'),10)||0, L: parseInt($.css(this,'paddingLeft'),10)||0 151 }; 152 153 if (typeof this.style.zoom !== undefined) this.style.zoom = 1; // force 'hasLayout' in IE 154 if (!keep) this.style.border = 'none'; 155 strip.style.borderColor = cc || gpc(this.parentNode); 156 cssHeight = $(this).outerHeight(); 157 158 for (j in edges) { 159 bot = edges[j]; 160 // only add stips if needed 161 if ((bot && (opts.BL || opts.BR)) || (!bot && (opts.TL || opts.TR))) { 162 strip.style.borderStyle = 'none '+(opts[j+'R']?'solid':'none')+' none '+(opts[j+'L']?'solid':'none'); 163 d = document.createElement('div'); 164 $(d).addClass('jquery-corner'); 165 ds = d.style; 166 167 bot ? this.appendChild(d) : this.insertBefore(d, this.firstChild); 168 169 if (bot && cssHeight != 'auto') { 170 if ($.css(this,'position') == 'static') 171 this.style.position = 'relative'; 172 ds.position = 'absolute'; 173 ds.bottom = ds.left = ds.padding = ds.margin = '0'; 174 if (expr) 175 ds.setExpression('width', 'this.parentNode.offsetWidth'); 176 else 177 ds.width = '100%'; 178 } 179 else if (!bot && msie) { 180 if ($.css(this,'position') == 'static') 181 this.style.position = 'relative'; 182 ds.position = 'absolute'; 183 ds.top = ds.left = ds.right = ds.padding = ds.margin = '0'; 184 185 // fix ie6 problem when blocked element has a border width 186 if (expr) { 187 bw = sz(this,'borderLeftWidth') + sz(this,'borderRightWidth'); 188 ds.setExpression('width', 'this.parentNode.offsetWidth - '+bw+'+ "px"'); 189 } 190 else 191 ds.width = '100%'; 192 } 193 else { 194 ds.position = 'relative'; 195 ds.margin = !bot ? '-'+pad.T+'px -'+pad.R+'px '+(pad.T-width)+'px -'+pad.L+'px' : 196 (pad.B-width)+'px -'+pad.R+'px -'+pad.B+'px -'+pad.L+'px'; 197 } 198 199 for (i=0; i < width; i++) { 200 w = Math.max(0,getWidth(fx,i, width)); 201 e = strip.cloneNode(false); 202 e.style.borderWidth = '0 '+(opts[j+'R']?w:0)+'px 0 '+(opts[j+'L']?w:0)+'px'; 203 bot ? d.appendChild(e) : d.insertBefore(e, d.firstChild); 204 } 205 206 if (fold && $.support.boxModel) { 207 if (bot && noBottomFold) continue; 208 for (c in opts) { 209 if (!opts[c]) continue; 210 if (bot && (c == 'TL' || c == 'TR')) continue; 211 if (!bot && (c == 'BL' || c == 'BR')) continue; 212 213 common = { position: 'absolute', border: 'none', margin: 0, padding: 0, overflow: 'hidden', backgroundColor: strip.style.borderColor };
214 $horz = $('<div/>').css(common).css({ width: width + 'px', height: '1px' }); 215 switch(c) { 216 case 'TL': $horz.css({ bottom: 0, left: 0 }); break; 217 case 'TR': $horz.css({ bottom: 0, right: 0 }); break; 218 case 'BL': $horz.css({ top: 0, left: 0 }); break; 219 case 'BR': $horz.css({ top: 0, right: 0 }); break; 220 } 221 d.appendChild($horz[0]); 222 223 var $vert = $('<div/>').css(common).css({ top: 0, bottom: 0, width: '1px', height: width + 'px' }); 224 switch(c) { 225 case 'TL': $vert.css({ left: width }); break; 226 case 'TR': $vert.css({ right: width }); break; 227 case 'BL': $vert.css({ left: width }); break; 228 case 'BR': $vert.css({ right: width }); break; 229 } 230 d.appendChild($vert[0]); 231 } 232 } 233 } 234 } 235 }); 236}; 237 238$.fn.uncorner = function() { 239 if (radius || moz || webkit) 240 this.css(radius ? 'border-radius' : moz ? '-moz-border-radius' : '-webkit-border-radius', 0); 241 $('div.jquery-corner', this).remove(); 242 return this; 243}; 244 245// expose options 246$.fn.corner.defaults = { 247 useNative: true, // true if plugin should attempt to use native browser support for border radius rounding 248 metaAttr: 'data-corner' // name of meta attribute to use for options 249}; 250 251})(jQuery);
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