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