ultimix

- Main Page
- Data Structures
- Files
- Examples

- File List
- Globals

jquery.corner.js
Go to the documentation of this file.
1
20 ;(function($) {
21
22 var 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) $('#myDiv').corner();
38
39 function sz(el, p) {
40 return parseInt($.css(el,p))||0;
41 };
42 function hex2(s) {
43 s = parseInt(s).toString(16);
44 return ( s.length < 2 ) ? '0'+s : s;
45 };
46 function 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
63 function 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 width-i;
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 case 'steep': return i/2 + 1;
85 case 'invsteep':return (width-i)/2+1;
86 }
87 };
88
89 $.fn.corner = function(options) {
90 // in 1.3+ we can fix mistakes with the ready state
91 if (this.length == 0) {
92 if (!$.isReady && this.selector) {
93 var s = this.selector, c = this.context;
94 $(function() {
95 $(s,c).corner(options);
96 });
97 }
98 return this;
99 }
100
101 return this.each(function(index){
102 var $this = $(this),
103 // meta values override options
104 o = [$this.attr($.fn.corner.defaults.metaAttr) || '', options || ''].join(' ').toLowerCase(),
105 keep = /keep/.test(o), // keep borders?
106 cc = ((o.match(/cc:(#[0-9a-f]+)/)||[])[1]), // corner color
107 sc = ((o.match(/sc:(#[0-9a-f]+)/)||[])[1]), // strip color
108 width = parseInt((o.match(/(\d+)px/)||[])[1]) || 10, // corner width
109 re = /round|bevelfold|bevel|notch|bite|cool|sharp|slide|jut|curl|tear|fray|wicked|sculpt|long|dog3|dog2|dogfold|dog|invsteep|steep/,
110 fx = ((o.match(re)||['round'])[0]),
111 fold = /dogfold|bevelfold/.test(o),
112 edges = { T:0, B:1 },
113 opts = {
114 TL: /top|tl|left/.test(o), TR: /top|tr|right/.test(o),
115 BL: /bottom|bl|left/.test(o), BR: /bottom|br|right/.test(o)
116 },
117 // vars used in func later
118 strip, pad, cssHeight, j, bot, d, ds, bw, i, w, e, c, common, $horz;
119
120 if ( !opts.TL && !opts.TR && !opts.BL && !opts.BR )
121 opts = { TL:1, TR:1, BL:1, BR:1 };
122
123 // support native rounding
124 if ($.fn.corner.defaults.useNative && fx == 'round' && (radius || moz || webkit) && !cc && !sc) {
125 if (opts.TL)
126 $this.css(radius ? 'border-top-left-radius' : moz ? '-moz-border-radius-topleft' : '-webkit-border-top-left-radius', width + 'px');
127 if (opts.TR)
128 $this.css(radius ? 'border-top-right-radius' : moz ? '-moz-border-radius-topright' : '-webkit-border-top-right-radius', width + 'px');
129 if (opts.BL)
130 $this.css(radius ? 'border-bottom-left-radius' : moz ? '-moz-border-radius-bottomleft' : '-webkit-border-bottom-left-radius', width + 'px');
131 if (opts.BR)
132 $this.css(radius ? 'border-bottom-right-radius' : moz ? '-moz-border-radius-bottomright' : '-webkit-border-bottom-right-radius', width + 'px');
133 return;
134 }
135
136 strip = document.createElement('div');
137 $(strip).css({
138 overflow: 'hidden',
139 height: '1px',
140 minHeight: '1px',
141 fontSize: '1px',
142 backgroundColor: sc || 'transparent',
143 borderStyle: 'solid'
144 });
145
146 pad = {
147 T: parseInt($.css(this,'paddingTop'))||0, R: parseInt($.css(this,'paddingRight'))||0,
148 B: parseInt($.css(this,'paddingBottom'))||0, L: parseInt($.css(this,'paddingLeft'))||0
149 };
150
151 if (typeof this.style.zoom != undefined) this.style.zoom = 1; // force 'hasLayout' in IE
152 if (!keep) this.style.border = 'none';
153 strip.style.borderColor = cc || gpc(this.parentNode);
154 cssHeight = $(this).outerHeight();
155
156 for (j in edges) {
157 bot = edges[j];
158 // only add stips if needed
159 if ((bot && (opts.BL || opts.BR)) || (!bot && (opts.TL || opts.TR))) {
160 strip.style.borderStyle = 'none '+(opts[j+'R']?'solid':'none')+' none '+(opts[j+'L']?'solid':'none');
161 d = document.createElement('div');
162 $(d).addClass('jquery-corner');
163 ds = d.style;
164
165 bot ? this.appendChild(d) : this.insertBefore(d, this.firstChild);
166
167 if (bot && cssHeight != 'auto') {
168 if ($.css(this,'position') == 'static')
169 this.style.position = 'relative';
170 ds.position = 'absolute';
171 ds.bottom = ds.left = ds.padding = ds.margin = '0';
172 if (expr)
173 ds.setExpression('width', 'this.parentNode.offsetWidth');
174 else
175 ds.width = '100%';
176 }
177 else if (!bot && $.browser.msie) {
178 if ($.css(this,'position') == 'static')
179 this.style.position = 'relative';
180 ds.position = 'absolute';
181 ds.top = ds.left = ds.right = ds.padding = ds.margin = '0';
182
183 // fix ie6 problem when blocked element has a border width
184 if (expr) {
185 bw = sz(this,'borderLeftWidth') + sz(this,'borderRightWidth');
186 ds.setExpression('width', 'this.parentNode.offsetWidth - '+bw+'+ "px"');
187 }
188 else
189 ds.width = '100%';
190 }
191 else {
192 ds.position = 'relative';
193 ds.margin = !bot ? '-'+pad.T+'px -'+pad.R+'px '+(pad.T-width)+'px -'+pad.L+'px' :
194 (pad.B-width)+'px -'+pad.R+'px -'+pad.B+'px -'+pad.L+'px';
195 }
196
197 for (i=0; i < width; i++) {
198 w = Math.max(0,getWidth(fx,i, width));
199 e = strip.cloneNode(false);
200 e.style.borderWidth = '0 '+(opts[j+'R']?w:0)+'px 0 '+(opts[j+'L']?w:0)+'px';
201 bot ? d.appendChild(e) : d.insertBefore(e, d.firstChild);
202 }
203
204 if (fold && $.support.boxModel) {
205 if (bot && noBottomFold) continue;
206 for (c in opts) {
207 if (!opts[c]) continue;
208 if (bot && (c == 'TL' || c == 'TR')) continue;
209 if (!bot && (c == 'BL' || c == 'BR')) continue;
210
211 common = { position: 'absolute', border: 'none', margin: 0, padding: 0, overflow: 'hidden', backgroundColor: strip.style.borderColor };
212 $horz = $('<div/>').css(common).css({ width: width + 'px', height: '1px' });
213 switch(c) {
214 case 'TL': $horz.css({ bottom: 0, left: 0 }); break;
215 case 'TR': $horz.css({ bottom: 0, right: 0 }); break;
216 case 'BL': $horz.css({ top: 0, left: 0 }); break;
217 case 'BR': $horz.css({ top: 0, right: 0 }); break;
218 }
219 d.appendChild($horz[0]);
220
221 var $vert = $('<div/>').css(common).css({ top: 0, bottom: 0, width: '1px', height: width + 'px' });
222 switch(c) {
223 case 'TL': $vert.css({ left: width }); break;
224 case 'TR': $vert.css({ right: width }); break;
225 case 'BL': $vert.css({ left: width }); break;
226 case 'BR': $vert.css({ right: width }); break;
227 }
228 d.appendChild($vert[0]);
229 }
230 }
231 }
232 }
233 });
234 };
235
236 $.fn.uncorner = function() {
237 if (radius || moz || webkit)
238 this.css(radius ? 'border-radius' : moz ? '-moz-border-radius' : '-webkit-border-radius', 0);
239 $('div.jquery-corner', this).remove();
240 return this;
241 };
242
243 // expose options
244 $.fn.corner.defaults = {
245 useNative: true, // true if plugin should attempt to use native browser support for border radius rounding
246 metaAttr: 'data-corner' // name of meta attribute to use for options
247 };
248
249 })(jQuery);