Mercurial > hg > orthanc
diff PalantirExplorer/libs/slimbox2.js @ 0:3959d33612cc
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 19 Jul 2012 14:32:22 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PalantirExplorer/libs/slimbox2.js Thu Jul 19 14:32:22 2012 +0200 @@ -0,0 +1,244 @@ +/*! + Slimbox v2.04 - The ultimate lightweight Lightbox clone for jQuery + (c) 2007-2010 Christophe Beyls <http://www.digitalia.be> + MIT-style license. +*/ + +(function($) { + + // Global variables, accessible to Slimbox only + var win = $(window), options, images, activeImage = -1, activeURL, prevImage, nextImage, compatibleOverlay, middle, centerWidth, centerHeight, + ie6 = !window.XMLHttpRequest, hiddenElements = [], documentElement = document.documentElement, + + // Preload images + preload = {}, preloadPrev = new Image(), preloadNext = new Image(), + + // DOM elements + overlay, center, image, sizer, prevLink, nextLink, bottomContainer, bottom, caption, number; + + /* + Initialization + */ + + $(function() { + // Append the Slimbox HTML code at the bottom of the document + $("body").append( + $([ + overlay = $('<div id="lbOverlay" />')[0], + center = $('<div id="lbCenter" />')[0], + bottomContainer = $('<div id="lbBottomContainer" />')[0] + ]).css("display", "none") + ); + + image = $('<div id="lbImage" />').appendTo(center).append( + sizer = $('<div style="position: relative;" />').append([ + prevLink = $('<a id="lbPrevLink" href="#" />').click(previous)[0], + nextLink = $('<a id="lbNextLink" href="#" />').click(next)[0] + ])[0] + )[0]; + + bottom = $('<div id="lbBottom" />').appendTo(bottomContainer).append([ + $('<a id="lbCloseLink" href="#" />').add(overlay).click(close)[0], + caption = $('<div id="lbCaption" />')[0], + number = $('<div id="lbNumber" />')[0], + $('<div style="clear: both;" />')[0] + ])[0]; + }); + + + /* + API + */ + + // Open Slimbox with the specified parameters + $.slimbox = function(_images, startImage, _options) { + options = $.extend({ + loop: false, // Allows to navigate between first and last images + overlayOpacity: 0.8, // 1 is opaque, 0 is completely transparent (change the color in the CSS file) + overlayFadeDuration: 400, // Duration of the overlay fade-in and fade-out animations (in milliseconds) + resizeDuration: 400, // Duration of each of the box resize animations (in milliseconds) + resizeEasing: "swing", // "swing" is jQuery's default easing + initialWidth: 250, // Initial width of the box (in pixels) + initialHeight: 250, // Initial height of the box (in pixels) + imageFadeDuration: 400, // Duration of the image fade-in animation (in milliseconds) + captionAnimationDuration: 400, // Duration of the caption animation (in milliseconds) + counterText: "Image {x} of {y}", // Translate or change as you wish, or set it to false to disable counter text for image groups + closeKeys: [27, 88, 67], // Array of keycodes to close Slimbox, default: Esc (27), 'x' (88), 'c' (67) + previousKeys: [37, 80], // Array of keycodes to navigate to the previous image, default: Left arrow (37), 'p' (80) + nextKeys: [39, 78] // Array of keycodes to navigate to the next image, default: Right arrow (39), 'n' (78) + }, _options); + + // The function is called for a single image, with URL and Title as first two arguments + if (typeof _images == "string") { + _images = [[_images, startImage]]; + startImage = 0; + } + + middle = win.scrollTop() + (win.height() / 2); + centerWidth = options.initialWidth; + centerHeight = options.initialHeight; + $(center).css({top: Math.max(0, middle - (centerHeight / 2)), width: centerWidth, height: centerHeight, marginLeft: -centerWidth/2}).show(); + compatibleOverlay = ie6 || (overlay.currentStyle && (overlay.currentStyle.position != "fixed")); + if (compatibleOverlay) overlay.style.position = "absolute"; + $(overlay).css("opacity", options.overlayOpacity).fadeIn(options.overlayFadeDuration); + position(); + setup(1); + + images = _images; + options.loop = options.loop && (images.length > 1); + return changeImage(startImage); + }; + + /* + options: Optional options object, see jQuery.slimbox() + linkMapper: Optional function taking a link DOM element and an index as arguments and returning an array containing 2 elements: + the image URL and the image caption (may contain HTML) + linksFilter: Optional function taking a link DOM element and an index as arguments and returning true if the element is part of + the image collection that will be shown on click, false if not. "this" refers to the element that was clicked. + This function must always return true when the DOM element argument is "this". + */ + $.fn.slimbox = function(_options, linkMapper, linksFilter) { + linkMapper = linkMapper || function(el) { + return [el.href, el.title]; + }; + + linksFilter = linksFilter || function() { + return true; + }; + + var links = this; + + return links.unbind("click").click(function() { + // Build the list of images that will be displayed + var link = this, startIndex = 0, filteredLinks, i = 0, length; + filteredLinks = $.grep(links, function(el, i) { + return linksFilter.call(link, el, i); + }); + + // We cannot use jQuery.map() because it flattens the returned array + for (length = filteredLinks.length; i < length; ++i) { + if (filteredLinks[i] == link) startIndex = i; + filteredLinks[i] = linkMapper(filteredLinks[i], i); + } + + return $.slimbox(filteredLinks, startIndex, _options); + }); + }; + + + /* + Internal functions + */ + + function position() { + var l = win.scrollLeft(), w = win.width(); + $([center, bottomContainer]).css("left", l + (w / 2)); + if (compatibleOverlay) $(overlay).css({left: l, top: win.scrollTop(), width: w, height: win.height()}); + } + + function setup(open) { + if (open) { + $("object").add(ie6 ? "select" : "embed").each(function(index, el) { + hiddenElements[index] = [el, el.style.visibility]; + el.style.visibility = "hidden"; + }); + } else { + $.each(hiddenElements, function(index, el) { + el[0].style.visibility = el[1]; + }); + hiddenElements = []; + } + var fn = open ? "bind" : "unbind"; + win[fn]("scroll resize", position); + $(document)[fn]("keydown", keyDown); + } + + function keyDown(event) { + var code = event.keyCode, fn = $.inArray; + // Prevent default keyboard action (like navigating inside the page) + return (fn(code, options.closeKeys) >= 0) ? close() + : (fn(code, options.nextKeys) >= 0) ? next() + : (fn(code, options.previousKeys) >= 0) ? previous() + : false; + } + + function previous() { + return changeImage(prevImage); + } + + function next() { + return changeImage(nextImage); + } + + function changeImage(imageIndex) { + if (imageIndex >= 0) { + activeImage = imageIndex; + activeURL = images[activeImage][0]; + prevImage = (activeImage || (options.loop ? images.length : 0)) - 1; + nextImage = ((activeImage + 1) % images.length) || (options.loop ? 0 : -1); + + stop(); + center.className = "lbLoading"; + + preload = new Image(); + preload.onload = animateBox; + preload.src = activeURL; + } + + return false; + } + + function animateBox() { + center.className = ""; + $(image).css({backgroundImage: "url(" + activeURL + ")", visibility: "hidden", display: "" }); + $(sizer).width(preload.width); + $([sizer, prevLink, nextLink]).height(preload.height); + + $(caption).html(images[activeImage][1] || ""); + $(number).html((((images.length > 1) && options.counterText) || "").replace(/{x}/, activeImage + 1).replace(/{y}/, images.length)); + + if (prevImage >= 0) preloadPrev.src = images[prevImage][0]; + if (nextImage >= 0) preloadNext.src = images[nextImage][0]; + + centerWidth = image.offsetWidth; + centerHeight = image.offsetHeight; + var top = Math.max(0, middle - (centerHeight / 2)); + if (center.offsetHeight != centerHeight) { + $(center).animate({height: centerHeight, top: top}, options.resizeDuration, options.resizeEasing); + } + if (center.offsetWidth != centerWidth) { + $(center).animate({width: centerWidth, marginLeft: -centerWidth/2}, options.resizeDuration, options.resizeEasing); + } + $(center).queue(function() { + $(bottomContainer).css({width: centerWidth, top: top + centerHeight, marginLeft: -centerWidth/2, visibility: "hidden", display: ""}); + animateCaption(); + $(image).css({display: "none", visibility: "", opacity: ""}).fadeIn(options.imageFadeDuration, animateCaption); + }); + } + + function animateCaption() { + if (prevImage >= 0) $(prevLink).show(); + if (nextImage >= 0) $(nextLink).show(); + $(bottom).css("marginTop", -bottom.offsetHeight).animate({marginTop: 0}, options.captionAnimationDuration); + bottomContainer.style.visibility = ""; + } + + function stop() { + preload.onload = null; + preload.src = preloadPrev.src = preloadNext.src = activeURL; + $([center, image, bottom]).stop(true); + $([prevLink, nextLink, image, bottomContainer]).hide(); + } + + function close() { + if (activeImage >= 0) { + stop(); + activeImage = prevImage = nextImage = -1; + $(center).hide(); + $(overlay).stop().fadeOut(options.overlayFadeDuration, setup); + } + + return false; + } + +})(jQuery); \ No newline at end of file