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56 lines
1.4 KiB
56 lines
1.4 KiB
14 years ago
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jQuery.fn.center = function(params) {
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var options = {
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vertical: true,
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horizontal: true
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}
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op = jQuery.extend(options, params);
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this.each(function(){
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//initializing variables
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var $self = jQuery(this);
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//get the dimensions using dimensions plugin
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var width = $self.width();
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var height = $self.height();
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//get the paddings
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var paddingTop = parseInt($self.css("padding-top"));
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var paddingBottom = parseInt($self.css("padding-bottom"));
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//get the borders
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var borderTop = parseInt($self.css("border-top-width"));
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var borderBottom = parseInt($self.css("border-bottom-width"));
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//get the media of padding and borders
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var mediaBorder = (borderTop+borderBottom)/2;
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var mediaPadding = (paddingTop+paddingBottom)/2;
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//get the type of positioning
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var positionType = $self.parent().css("position");
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// get the half minus of width and height
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var halfWidth = (width/2)*(-1);
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var halfHeight = ((height/2)*(-1))-mediaPadding-mediaBorder;
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// initializing the css properties
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var cssProp = {
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position: 'absolute'
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};
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if(op.vertical) {
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cssProp.height = height;
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cssProp.top = '50%';
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cssProp.marginTop = halfHeight;
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}
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if(op.horizontal) {
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cssProp.width = width;
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cssProp.left = '50%';
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cssProp.marginLeft = halfWidth;
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}
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//check the current position
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if(positionType == 'static') {
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$self.parent().css("position","relative");
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}
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//aplying the css
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$self.css(cssProp);
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});
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};
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