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PhotoSwipe: init from DOM using jQuery
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(function( $ ) { | |
$.fn.photoswipe = function(options){ | |
var galleries = [], | |
_options = options; | |
var init = function($this){ | |
galleries = []; | |
$this.each(function(i, gallery){ | |
galleries.push({ | |
id: i, | |
items: [] | |
}); | |
$(gallery).find('a').each(function(k, link) { | |
var $link = $(link), | |
size = $link.data('size').split('x'); | |
if (size.length != 2){ | |
throw SyntaxError("Missing data-size attribute."); | |
} | |
$link.data('gallery-id',i+1); | |
$link.data('photo-id', k); | |
var item = { | |
src: link.href, | |
msrc: link.children[0].getAttribute('src'), | |
w: parseInt(size[0],10), | |
h: parseInt(size[1],10), | |
title: $link.data('title'), | |
el: link | |
} | |
galleries[i].items.push(item); | |
}); | |
$(gallery).on('click', 'a', function(e){ | |
e.preventDefault(); | |
var gid = $(this).data('gallery-id'), | |
pid = $(this).data('photo-id'); | |
openGallery(gid,pid); | |
}); | |
}); | |
} | |
var parseHash = function() { | |
var hash = window.location.hash.substring(1), | |
params = {}; | |
if(hash.length < 5) { | |
return params; | |
} | |
var vars = hash.split('&'); | |
for (var i = 0; i < vars.length; i++) { | |
if(!vars[i]) { | |
continue; | |
} | |
var pair = vars[i].split('='); | |
if(pair.length < 2) { | |
continue; | |
} | |
params[pair[0]] = pair[1]; | |
} | |
if(params.gid) { | |
params.gid = parseInt(params.gid, 10); | |
} | |
if(!params.hasOwnProperty('pid')) { | |
return params; | |
} | |
params.pid = parseInt(params.pid, 10); | |
return params; | |
}; | |
var openGallery = function(gid,pid){ | |
var pswpElement = document.querySelectorAll('.pswp')[0], | |
items = galleries[gid-1].items, | |
options = { | |
index: pid, | |
galleryUID: gid, | |
getThumbBoundsFn: function(index) { | |
var thumbnail = items[index].el.children[0], | |
pageYScroll = window.pageYOffset || document.documentElement.scrollTop, | |
rect = thumbnail.getBoundingClientRect(); | |
return {x:rect.left, y:rect.top + pageYScroll, w:rect.width}; | |
} | |
}; | |
$.extend(options,_options); | |
var gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options); | |
gallery.init(); | |
} | |
// initialize | |
init(this); | |
// Parse URL and open gallery if it contains #&pid=3&gid=1 | |
var hashData = parseHash(); | |
if(hashData.pid > 0 && hashData.gid > 0) { | |
openGallery(hashData.gid,hashData.pid); | |
} | |
return this; | |
}; | |
}( jQuery )); |
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