mirror of
https://github.com/86Box/86box.github.io.git
synced 2026-02-21 17:15:35 -07:00
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
/* Helper script for the retro-reduced stylesheet. */
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/* Get an image's real width. Used by the auto-sizing CSS expression. */
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var imgCache = {};
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function getNaturalWidth(img) {
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if (img.naturalWidth) {
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return img.naturalWidth;
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} else {
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/* Cache images through src to avoid memory waste. */
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var img2 = imgCache[img.src];
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if (!img2) {
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img2 = new Image();
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img2.src = img.src;
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imgCache[img.src] = img2;
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}
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return img2.width;
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}
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}
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/* Allow HTML5 elements to be styled. */
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document.createElement('nav');
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document.createElement('main');
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document.createElement('footer');
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window.onload = function() {
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/* Make the logo transparent on IE6. Doing this on more
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images interferes with the auto-sizing CSS expression. */
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if (document.all && /MSIE (5\.5|6)/.test(navigator.userAgent)) {
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for (var i = 0; i < Math.min(2, document.images.length); i++) {
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var img = document.images[i];
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img.style.paddingRight = 0; /* padding counts as space for AlphaImageLoader so swap it for margin */
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var oldsrc = img.src;
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var oldw = img.clientWidth;
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var oldh = img.clientHeight;
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img.src = '/assets/images/blank.gif';
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img.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + oldsrc + "', sizingMethod='scale')";
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img.style.width = oldw + 'px';
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img.style.height = oldh + 'px';
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img.style.marginRight = '20pt';
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}
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}
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};
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