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12 lines
1.1 KiB
JavaScript
12 lines
1.1 KiB
JavaScript
4 years ago
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/*
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* rwdImageMaps jQuery plugin v1.6
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*
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* Allows image maps to be used in a responsive design by recalculating the area coordinates to match the actual image size on load and window.resize
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*
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* Copyright (c) 2016 Matt Stow
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* https://github.com/stowball/jQuery-rwdImageMaps
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* http://mattstow.com
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* Licensed under the MIT license
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*/
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;(function(a){a.fn.rwdImageMaps=function(){var c=this;var b=function(){c.each(function(){if(typeof(a(this).attr("usemap"))=="undefined"){return}var e=this,d=a(e);a("<img />").on('load',function(){var g="width",m="height",n=d.attr(g),j=d.attr(m);if(!n||!j){var o=new Image();o.src=d.attr("src");if(!n){n=o.width}if(!j){j=o.height}}var f=d.width()/100,k=d.height()/100,i=d.attr("usemap").replace("#",""),l="coords";a('map[name="'+i+'"]').find("area").each(function(){var r=a(this);if(!r.data(l)){r.data(l,r.attr(l))}var q=r.data(l).split(","),p=new Array(q.length);for(var h=0;h<p.length;++h){if(h%2===0){p[h]=parseInt(((q[h]/n)*100)*f)}else{p[h]=parseInt(((q[h]/j)*100)*k)}}r.attr(l,p.toString())})}).attr("src",d.attr("src"))})};a(window).resize(b).trigger("resize");return this}})(jQuery);
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