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/*!
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* jQuery corner plugin: simple corner rounding
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* Examples and documentation at: http://jquery.malsup.com/corner/
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* version 1.96 (11-MAY-2009)
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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*/
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/**
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* corner() takes a single string argument: $('#myDiv').corner("effect corners width")
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*
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* effect: name of the effect to apply, such as round, bevel, notch, bite, etc (default is round).
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* corners: one or more of: top, bottom, tr, tl, br, or bl.
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* by default, all four corners are adorned.
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* width: width of the effect; in the case of rounded corners this is the radius.
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* specify this value using the px suffix such as 10px (and yes, it must be pixels).
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*
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* @name corner
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* @type jQuery
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* @param String options Options which control the corner style
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* @cat Plugins/Corner
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* @return jQuery
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* @author Dave Methvin (http://methvin.com/jquery/jq-corner.html)
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* @author Mike Alsup (http://jquery.malsup.com/corner/)
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*/
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;(function($) {
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var expr = (function() {
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var div = document.createElement('div');
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try { div.style.setExpression('width','0+0'); }
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catch(e) { return false; }
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return true;
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})();
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function sz(el, p) {
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return parseInt($.css(el,p))||0;
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};
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function hex2(s) {
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var s = parseInt(s).toString(16);
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return ( s.length < 2 ) ? '0'+s : s;
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};
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function gpc(node) {
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for ( ; node && node.nodeName.toLowerCase() != 'html'; node = node.parentNode ) {
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var v = $.css(node,'backgroundColor');
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if ( v.indexOf('rgb') >= 0 ) {
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if ($.browser.safari && v == 'rgba(0, 0, 0, 0)')
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continue;
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var rgb = v.match(/\d+/g);
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return '#'+ hex2(rgb[0]) + hex2(rgb[1]) + hex2(rgb[2]);
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}
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if ( v && v != 'transparent' )
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return v;
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}
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return '#ffffff';
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};
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function getWidth(fx, i, width) {
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switch(fx) {
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case 'round': return Math.round(width*(1-Math.cos(Math.asin(i/width))));
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case 'cool': return Math.round(width*(1+Math.cos(Math.asin(i/width))));
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case 'sharp': return Math.round(width*(1-Math.cos(Math.acos(i/width))));
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case 'bite': return Math.round(width*(Math.cos(Math.asin((width-i-1)/width))));
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case 'slide': return Math.round(width*(Math.atan2(i,width/i)));
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case 'jut': return Math.round(width*(Math.atan2(width,(width-i-1))));
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case 'curl': return Math.round(width*(Math.atan(i)));
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case 'tear': return Math.round(width*(Math.cos(i)));
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case 'wicked': return Math.round(width*(Math.tan(i)));
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case 'long': return Math.round(width*(Math.sqrt(i)));
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case 'sculpt': return Math.round(width*(Math.log((width-i-1),width)));
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case 'dog': return (i&1) ? (i+1) : width;
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case 'dog2': return (i&2) ? (i+1) : width;
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case 'dog3': return (i&3) ? (i+1) : width;
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case 'fray': return (i%2)*width;
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case 'notch': return width;
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case 'bevel': return i+1;
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}
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};
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$.fn.corner = function(o) {
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// in 1.3+ we can fix mistakes with the ready state
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if (this.length == 0) {
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if (!$.isReady && this.selector) {
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var s = this.selector, c = this.context;
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$(function() {
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$(s,c).corner(o);
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});
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}
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return this;
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}
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o = (o||"").toLowerCase();
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var keep = /keep/.test(o); // keep borders?
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var cc = ((o.match(/cc:(#[0-9a-f]+)/)||[])[1]); // corner color
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var sc = ((o.match(/sc:(#[0-9a-f]+)/)||[])[1]); // strip color
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var width = parseInt((o.match(/(\d+)px/)||[])[1]) || 10; // corner width
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var re = /round|bevel|notch|bite|cool|sharp|slide|jut|curl|tear|fray|wicked|sculpt|long|dog3|dog2|dog/;
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var fx = ((o.match(re)||['round'])[0]);
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var edges = { T:0, B:1 };
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var opts = {
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TL: /top|tl/.test(o), TR: /top|tr/.test(o),
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BL: /bottom|bl/.test(o), BR: /bottom|br/.test(o)
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};
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if ( !opts.TL && !opts.TR && !opts.BL && !opts.BR )
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opts = { TL:1, TR:1, BL:1, BR:1 };
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var strip = document.createElement('div');
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strip.style.overflow = 'hidden';
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strip.style.height = '1px';
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strip.style.backgroundColor = sc || 'transparent';
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strip.style.borderStyle = 'solid';
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return this.each(function(index){
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var pad = {
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T: parseInt($.css(this,'paddingTop'))||0, R: parseInt($.css(this,'paddingRight'))||0,
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B: parseInt($.css(this,'paddingBottom'))||0, L: parseInt($.css(this,'paddingLeft'))||0
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};
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if (typeof this.style.zoom != undefined) this.style.zoom = 1; // force 'hasLayout' in IE
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if (!keep) this.style.border = 'none';
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strip.style.borderColor = cc || gpc(this.parentNode);
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var cssHeight = $.curCSS(this, 'height');
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for (var j in edges) {
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var bot = edges[j];
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// only add stips if needed
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if ((bot && (opts.BL || opts.BR)) || (!bot && (opts.TL || opts.TR))) {
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strip.style.borderStyle = 'none '+(opts[j+'R']?'solid':'none')+' none '+(opts[j+'L']?'solid':'none');
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var d = document.createElement('div');
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$(d).addClass('jquery-corner');
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var ds = d.style;
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bot ? this.appendChild(d) : this.insertBefore(d, this.firstChild);
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if (bot && cssHeight != 'auto') {
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if ($.css(this,'position') == 'static')
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this.style.position = 'relative';
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ds.position = 'absolute';
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ds.bottom = ds.left = ds.padding = ds.margin = '0';
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if (expr)
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ds.setExpression('width', 'this.parentNode.offsetWidth');
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else
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ds.width = '100%';
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}
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else if (!bot && $.browser.msie) {
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if ($.css(this,'position') == 'static')
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this.style.position = 'relative';
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ds.position = 'absolute';
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ds.top = ds.left = ds.right = ds.padding = ds.margin = '0';
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// fix ie6 problem when blocked element has a border width
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if (expr) {
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var bw = sz(this,'borderLeftWidth') + sz(this,'borderRightWidth');
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ds.setExpression('width', 'this.parentNode.offsetWidth - '+bw+'+ "px"');
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}
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else
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ds.width = '100%';
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}
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else {
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ds.margin = !bot ? '-'+pad.T+'px -'+pad.R+'px '+(pad.T-width)+'px -'+pad.L+'px' :
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(pad.B-width)+'px -'+pad.R+'px -'+pad.B+'px -'+pad.L+'px';
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}
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for (var i=0; i < width; i++) {
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var w = Math.max(0,getWidth(fx,i, width));
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var e = strip.cloneNode(false);
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e.style.borderWidth = '0 '+(opts[j+'R']?w:0)+'px 0 '+(opts[j+'L']?w:0)+'px';
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bot ? d.appendChild(e) : d.insertBefore(e, d.firstChild);
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}
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}
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}
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});
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};
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$.fn.uncorner = function() {
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$('div.jquery-corner', this).remove();
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return this;
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};
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})(jQuery);
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