74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
// /////
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// Darkbox by Roko.CB
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(function () {
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var c = 0; // counter
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var $images = {};
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var n = 0;
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var $prevNext = $("<div id='darkbox_prev'/><div id='darkbox_next'/>").on("click", function (e) {
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e.stopPropagation();
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var isNext = this.id === "darkbox_next";
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c = (isNext ? c++ : --c) < 0 ? n - 1 : c % n;
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$images.eq(c).click();
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});
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var $darkboxDescription = $("<div/>", {
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"id": "darkbox-description"
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});
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var $darkbox = $("<div/>", {
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"id": "darkbox",
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html: $prevNext
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}).on("click", function () {
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$(this).removeClass("on");
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}).append($darkboxDescription).appendTo("body");
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$(document).on("click", "[data-darkbox]", function (e) {
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e.preventDefault();
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e.stopPropagation();
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$images = $('[data-darkbox!=""][data-darkbox]');
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n = $images.length;
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var that = this;
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var docW = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
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var docH = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
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var o = this.getBoundingClientRect();
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var imgSRC = this.dataset.darkbox ? this.dataset.darkbox : this.src;
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if (!imgSRC)
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imgSRC = $("[data-darkbox!=''][data-darkbox]").attr("data-darkbox");
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var newImg = new Image();
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newImg.onload = function () {
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c = $images.index(that);
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var bigger = (newImg.height > docH || newImg.width > docW);
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$darkbox.css({// Init darkbox to image position
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backfaceVisibility: "hidden",
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transition: "0s",
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backgroundImage: "url('" + newImg.src + "')",
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backgroundSize: bigger ? "contain" : "auto",
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left: o.left,
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top: o.top,
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height: that.height,
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width: that.width
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});
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$darkboxDescription.html($(that).attr("data-darkbox-description"));
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setTimeout(function () {
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if (!$darkbox.hasClass("on")) {
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$darkbox.css({transition: "0.8s"}).addClass("on");
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}
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}, 35);
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};
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newImg.src = imgSRC;
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});
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$(document).on("keyup", function (e) {
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var k = e.which;
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if (k === 27) /*ESC */
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$("#darkbox").click(); // close Darkbox
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if (k === 37) /*LEFT*/
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$("#darkbox_prev").click();
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if (k === 39) /*RIGHT*/
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$("#darkbox_next").click();
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});
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}()); |