352 lines
11 KiB
JavaScript
352 lines
11 KiB
JavaScript
|
|
/*
|
|
Lightbox v2.51
|
|
by Lokesh Dhakar - http://www.lokeshdhakar.com
|
|
|
|
For more information, visit:
|
|
http://lokeshdhakar.com/projects/lightbox2/
|
|
|
|
Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
|
|
- free for use in both personal and commercial projects
|
|
- attribution requires leaving author name, author link, and the license info intact
|
|
|
|
Thanks
|
|
- Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), and Thomas Fuchs(mir.aculo.us) for ideas, libs, and snippets.
|
|
- Artemy Tregubenko (arty.name) for cleanup and help in updating to latest proto-aculous in v2.05.
|
|
|
|
|
|
Table of Contents
|
|
=================
|
|
LightboxOptions
|
|
|
|
Lightbox
|
|
- constructor
|
|
- init
|
|
- enable
|
|
- build
|
|
- start
|
|
- changeImage
|
|
- sizeContainer
|
|
- showImage
|
|
- updateNav
|
|
- updateDetails
|
|
- preloadNeigbhoringImages
|
|
- enableKeyboardNav
|
|
- disableKeyboardNav
|
|
- keyboardAction
|
|
- end
|
|
|
|
options = new LightboxOptions
|
|
lightbox = new Lightbox options
|
|
*/
|
|
|
|
(function() {
|
|
var $, Lightbox, LightboxOptions;
|
|
|
|
$ = jQuery;
|
|
|
|
LightboxOptions = (function() {
|
|
|
|
function LightboxOptions() {
|
|
this.fileLoadingImage = 'images/loading.gif';
|
|
this.fileCloseImage = 'images/close.png';
|
|
this.resizeDuration = 700;
|
|
this.fadeDuration = 500;
|
|
this.labelImage = "Foto";
|
|
this.labelOf = "von";
|
|
}
|
|
|
|
return LightboxOptions;
|
|
|
|
})();
|
|
|
|
Lightbox = (function() {
|
|
|
|
function Lightbox(options) {
|
|
this.options = options;
|
|
this.album = [];
|
|
this.currentImageIndex = void 0;
|
|
this.init();
|
|
}
|
|
|
|
Lightbox.prototype.init = function() {
|
|
this.enable();
|
|
return this.build();
|
|
};
|
|
|
|
Lightbox.prototype.enable = function() {
|
|
var _this = this;
|
|
return $('body').on('click', 'a[rel^=lightbox], area[rel^=lightbox]', function(e) {
|
|
_this.start($(e.currentTarget));
|
|
return false;
|
|
});
|
|
};
|
|
|
|
Lightbox.prototype.build = function() {
|
|
var $lightbox,
|
|
_this = this;
|
|
$("<div>", {
|
|
id: 'lightboxOverlay'
|
|
}).after($('<div/>', {
|
|
id: 'lightbox'
|
|
}).append($('<div/>', {
|
|
"class": 'lb-outerContainer'
|
|
}).append($('<div/>', {
|
|
"class": 'lb-container'
|
|
}).append($('<img/>', {
|
|
"class": 'lb-image'
|
|
}), $('<div/>', {
|
|
"class": 'lb-nav'
|
|
}).append($('<a/>', {
|
|
"class": 'lb-prev'
|
|
}), $('<a/>', {
|
|
"class": 'lb-next'
|
|
})), $('<div/>', {
|
|
"class": 'lb-loader'
|
|
}).append($('<a/>', {
|
|
"class": 'lb-cancel'
|
|
}).append($('<img/>', {
|
|
src: this.options.fileLoadingImage
|
|
}))))), $('<div/>', {
|
|
"class": 'lb-dataContainer'
|
|
}).append($('<div/>', {
|
|
"class": 'lb-data'
|
|
}).append($('<div/>', {
|
|
"class": 'lb-details'
|
|
}).append($('<span/>', {
|
|
"class": 'lb-caption'
|
|
}), $('<span/>', {
|
|
"class": 'lb-number'
|
|
})), $('<div/>', {
|
|
"class": 'lb-closeContainer'
|
|
}).append($('<a/>', {
|
|
"class": 'lb-close'
|
|
}).append($('<img/>', {
|
|
src: this.options.fileCloseImage
|
|
}))))))).appendTo($('body'));
|
|
$('#lightboxOverlay').hide().on('click', function(e) {
|
|
_this.end();
|
|
return false;
|
|
});
|
|
$lightbox = $('#lightbox');
|
|
$lightbox.hide().on('click', function(e) {
|
|
if ($(e.target).attr('id') === 'lightbox') _this.end();
|
|
return false;
|
|
});
|
|
$lightbox.find('.lb-outerContainer').on('click', function(e) {
|
|
if ($(e.target).attr('id') === 'lightbox') _this.end();
|
|
return false;
|
|
});
|
|
$lightbox.find('.lb-prev').on('click', function(e) {
|
|
_this.changeImage(_this.currentImageIndex - 1);
|
|
return false;
|
|
});
|
|
$lightbox.find('.lb-next').on('click', function(e) {
|
|
_this.changeImage(_this.currentImageIndex + 1);
|
|
return false;
|
|
});
|
|
$lightbox.find('.lb-loader, .lb-close').on('click', function(e) {
|
|
_this.end();
|
|
return false;
|
|
});
|
|
};
|
|
|
|
Lightbox.prototype.start = function($link) {
|
|
var $lightbox, $window, a, i, imageNumber, left, top, _len, _ref;
|
|
$(window).on("resize", this.sizeOverlay);
|
|
$('select, object, embed').css({
|
|
visibility: "hidden"
|
|
});
|
|
$('#lightboxOverlay').width($(document).width()).height($(document).height()).fadeIn(this.options.fadeDuration);
|
|
this.album = [];
|
|
imageNumber = 0;
|
|
if ($link.attr('rel') === 'lightbox') {
|
|
this.album.push({
|
|
link: $link.attr('href'),
|
|
title: $link.attr('title')
|
|
});
|
|
} else {
|
|
_ref = $($link.prop("tagName") + '[rel="' + $link.attr('rel') + '"]');
|
|
for (i = 0, _len = _ref.length; i < _len; i++) {
|
|
a = _ref[i];
|
|
this.album.push({
|
|
link: $(a).attr('href'),
|
|
title: $(a).attr('title')
|
|
});
|
|
if ($(a).attr('href') === $link.attr('href')) imageNumber = i;
|
|
}
|
|
}
|
|
$window = $(window);
|
|
top = $window.scrollTop() + $window.height() / 10;
|
|
left = $window.scrollLeft();
|
|
$lightbox = $('#lightbox');
|
|
$lightbox.css({
|
|
top: top + 'px',
|
|
left: left + 'px'
|
|
}).fadeIn(this.options.fadeDuration);
|
|
this.changeImage(imageNumber);
|
|
};
|
|
|
|
Lightbox.prototype.changeImage = function(imageNumber) {
|
|
var $image, $lightbox, preloader,
|
|
_this = this;
|
|
this.disableKeyboardNav();
|
|
$lightbox = $('#lightbox');
|
|
$image = $lightbox.find('.lb-image');
|
|
this.sizeOverlay();
|
|
$('#lightboxOverlay').fadeIn(this.options.fadeDuration);
|
|
$('.loader').fadeIn('slow');
|
|
$lightbox.find('.lb-image, .lb-nav, .lb-prev, .lb-next, .lb-dataContainer, .lb-numbers, .lb-caption').hide();
|
|
$lightbox.find('.lb-outerContainer').addClass('animating');
|
|
preloader = new Image;
|
|
preloader.onload = function() {
|
|
$image.attr('src', _this.album[imageNumber].link);
|
|
$image.width = preloader.width;
|
|
$image.height = preloader.height;
|
|
return _this.sizeContainer(preloader.width, preloader.height);
|
|
};
|
|
preloader.src = this.album[imageNumber].link;
|
|
this.currentImageIndex = imageNumber;
|
|
};
|
|
|
|
Lightbox.prototype.sizeOverlay = function() {
|
|
return $('#lightboxOverlay').width($(document).width()).height($(document).height());
|
|
};
|
|
|
|
Lightbox.prototype.sizeContainer = function(imageWidth, imageHeight) {
|
|
var $container, $lightbox, $outerContainer, containerBottomPadding, containerLeftPadding, containerRightPadding, containerTopPadding, newHeight, newWidth, oldHeight, oldWidth,
|
|
_this = this;
|
|
$lightbox = $('#lightbox');
|
|
$outerContainer = $lightbox.find('.lb-outerContainer');
|
|
oldWidth = $outerContainer.outerWidth();
|
|
oldHeight = $outerContainer.outerHeight();
|
|
$container = $lightbox.find('.lb-container');
|
|
containerTopPadding = parseInt($container.css('padding-top'), 10);
|
|
containerRightPadding = parseInt($container.css('padding-right'), 10);
|
|
containerBottomPadding = parseInt($container.css('padding-bottom'), 10);
|
|
containerLeftPadding = parseInt($container.css('padding-left'), 10);
|
|
newWidth = imageWidth + containerLeftPadding + containerRightPadding;
|
|
newHeight = imageHeight + containerTopPadding + containerBottomPadding;
|
|
if (newWidth !== oldWidth && newHeight !== oldHeight) {
|
|
$outerContainer.animate({
|
|
width: newWidth,
|
|
height: newHeight
|
|
}, this.options.resizeDuration, 'swing');
|
|
} else if (newWidth !== oldWidth) {
|
|
$outerContainer.animate({
|
|
width: newWidth
|
|
}, this.options.resizeDuration, 'swing');
|
|
} else if (newHeight !== oldHeight) {
|
|
$outerContainer.animate({
|
|
height: newHeight
|
|
}, this.options.resizeDuration, 'swing');
|
|
}
|
|
setTimeout(function() {
|
|
$lightbox.find('.lb-dataContainer').width(newWidth);
|
|
$lightbox.find('.lb-prevLink').height(newHeight);
|
|
$lightbox.find('.lb-nextLink').height(newHeight);
|
|
_this.showImage();
|
|
}, this.options.resizeDuration);
|
|
};
|
|
|
|
Lightbox.prototype.showImage = function() {
|
|
var $lightbox;
|
|
$lightbox = $('#lightbox');
|
|
$lightbox.find('.lb-loader').hide();
|
|
$lightbox.find('.lb-image').fadeIn('slow');
|
|
this.updateNav();
|
|
this.updateDetails();
|
|
this.preloadNeighboringImages();
|
|
this.enableKeyboardNav();
|
|
};
|
|
|
|
Lightbox.prototype.updateNav = function() {
|
|
var $lightbox;
|
|
$lightbox = $('#lightbox');
|
|
$lightbox.find('.lb-nav').show();
|
|
if (this.currentImageIndex > 0) $lightbox.find('.lb-prev').show();
|
|
if (this.currentImageIndex < this.album.length - 1) {
|
|
$lightbox.find('.lb-next').show();
|
|
}
|
|
};
|
|
|
|
Lightbox.prototype.updateDetails = function() {
|
|
var $lightbox,
|
|
_this = this;
|
|
$lightbox = $('#lightbox');
|
|
if (typeof this.album[this.currentImageIndex].title !== 'undefined' && this.album[this.currentImageIndex].title !== "") {
|
|
$lightbox.find('.lb-caption').html(this.album[this.currentImageIndex].title).fadeIn('fast');
|
|
}
|
|
if (this.album.length > 1) {
|
|
$lightbox.find('.lb-number').html(this.options.labelImage + ' ' + (this.currentImageIndex + 1) + ' ' + this.options.labelOf + ' ' + this.album.length).fadeIn('fast');
|
|
} else {
|
|
$lightbox.find('.lb-number').hide();
|
|
}
|
|
$lightbox.find('.lb-outerContainer').removeClass('animating');
|
|
$lightbox.find('.lb-dataContainer').fadeIn(this.resizeDuration, function() {
|
|
return _this.sizeOverlay();
|
|
});
|
|
};
|
|
|
|
Lightbox.prototype.preloadNeighboringImages = function() {
|
|
var preloadNext, preloadPrev;
|
|
if (this.album.length > this.currentImageIndex + 1) {
|
|
preloadNext = new Image;
|
|
preloadNext.src = this.album[this.currentImageIndex + 1].link;
|
|
}
|
|
if (this.currentImageIndex > 0) {
|
|
preloadPrev = new Image;
|
|
preloadPrev.src = this.album[this.currentImageIndex - 1].link;
|
|
}
|
|
};
|
|
|
|
Lightbox.prototype.enableKeyboardNav = function() {
|
|
$(document).on('keyup.keyboard', $.proxy(this.keyboardAction, this));
|
|
};
|
|
|
|
Lightbox.prototype.disableKeyboardNav = function() {
|
|
$(document).off('.keyboard');
|
|
};
|
|
|
|
Lightbox.prototype.keyboardAction = function(event) {
|
|
var KEYCODE_ESC, KEYCODE_LEFTARROW, KEYCODE_RIGHTARROW, key, keycode;
|
|
KEYCODE_ESC = 27;
|
|
KEYCODE_LEFTARROW = 37;
|
|
KEYCODE_RIGHTARROW = 39;
|
|
keycode = event.keyCode;
|
|
key = String.fromCharCode(keycode).toLowerCase();
|
|
if (keycode === KEYCODE_ESC || key.match(/x|o|c/)) {
|
|
this.end();
|
|
} else if (key === 'p' || keycode === KEYCODE_LEFTARROW) {
|
|
if (this.currentImageIndex !== 0) {
|
|
this.changeImage(this.currentImageIndex - 1);
|
|
}
|
|
} else if (key === 'n' || keycode === KEYCODE_RIGHTARROW) {
|
|
if (this.currentImageIndex !== this.album.length - 1) {
|
|
this.changeImage(this.currentImageIndex + 1);
|
|
}
|
|
}
|
|
};
|
|
|
|
Lightbox.prototype.end = function() {
|
|
this.disableKeyboardNav();
|
|
$(window).off("resize", this.sizeOverlay);
|
|
$('#lightbox').fadeOut(this.options.fadeDuration);
|
|
$('#lightboxOverlay').fadeOut(this.options.fadeDuration);
|
|
return $('select, object, embed').css({
|
|
visibility: "visible"
|
|
});
|
|
};
|
|
|
|
return Lightbox;
|
|
|
|
})();
|
|
|
|
$(function() {
|
|
var lightbox, options;
|
|
options = new LightboxOptions;
|
|
return lightbox = new Lightbox(options);
|
|
});
|
|
|
|
}).call(this);
|