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jquery.trancybox.js
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jquery.trancybox.js
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/*
* TrancyBox - jQuery Plugin
* Fork of the 1.3.4 of FancyBox, the simple and trancy lightbox alternative
*
* Original examples and documentation at: http://trancybox.net
*
* This fork is mainly a place to put small scale
* modifications done while using trancybox.
*
* Copyright (c) 2008 - 2010 Janis Skarnelis & Contributors
*
* Version: 0.1 (20/01/2012)
* Requires: jQuery v1.3+
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*/
;(function($) {
var tmp, loading, overlay, wrap, outer, content, close, title, nav_left, nav_right,
selectedIndex = 0, selectedOpts = {}, selectedArray = [], currentIndex = 0, currentOpts = {}, currentArray = [],
ajaxLoader = null, imgPreloader = new Image(), imgRegExp = /\.(jpg|gif|png|bmp|jpeg)(.*)?$/i, swfRegExp = /[^\.]\.(swf)\s*$/i,
loadingTimer, loadingFrame = 1,
titleHeight = 0, titleStr = '', start_pos, final_pos, busy = false, fx = $.extend($('<div/>')[0], { prop: 0 }),
/*
* Private methods
*/
_abort = function() {
loading.hide();
imgPreloader.onerror = imgPreloader.onload = null;
if (ajaxLoader) {
ajaxLoader.abort();
}
tmp.empty();
},
_error = function() {
if (false === selectedOpts.onError(selectedArray, selectedIndex, selectedOpts)) {
loading.hide();
busy = false;
return;
}
selectedOpts.titleShow = false;
selectedOpts.width = 'auto';
selectedOpts.height = 'auto';
tmp.html( '<p id="trancybox-error">The requested content cannot be loaded.<br />Please try again later.</p>' );
_process_inline();
},
_start = function() {
var obj = selectedArray[ selectedIndex ],
href,
type,
title,
str,
emb,
ret;
selectedOpts = $.extend({}, $.fn.trancybox.defaults, (typeof $(obj).data('trancybox') == 'undefined' ? selectedOpts : $(obj).data('trancybox')));
ret = selectedOpts.onStart(selectedArray, selectedIndex, selectedOpts);
if (ret === false) {
busy = false;
return;
} else if (typeof ret == 'object') {
selectedOpts = $.extend(selectedOpts, ret);
}
title = selectedOpts.title || (obj.nodeName ? $(obj).attr('title') : obj.title) || '';
if (obj.nodeName && !selectedOpts.orig) {
selectedOpts.orig = $(obj).children("img:first").length ? $(obj).children("img:first") : $(obj);
}
if (title === '' && selectedOpts.orig && selectedOpts.titleFromAlt) {
title = selectedOpts.orig.attr('alt');
}
href = selectedOpts.href || (obj.nodeName ? $(obj).attr('href') : obj.href) || null;
if ((/^(?:javascript)/i).test(href) || href == '#') {
href = null;
}
if (selectedOpts.type) {
type = selectedOpts.type;
if (!href) {
href = selectedOpts.content;
}
} else if (selectedOpts.content) {
type = 'html';
} else if (href) {
if (href.match(imgRegExp)) {
type = 'image';
} else if (href.match(swfRegExp)) {
type = 'swf';
} else if ($(obj).hasClass("iframe")) {
type = 'iframe';
} else if (href.indexOf("#") === 0) {
type = 'inline';
} else {
type = 'ajax';
}
}
if (!type) {
_error();
return;
}
if (type == 'inline') {
obj = href.substr(href.indexOf("#"));
type = $(obj).length > 0 ? 'inline' : 'ajax';
}
selectedOpts.type = type;
selectedOpts.href = href;
selectedOpts.title = title;
if (selectedOpts.autoDimensions) {
if (selectedOpts.type == 'html' || selectedOpts.type == 'inline' || selectedOpts.type == 'ajax') {
selectedOpts.width = 'auto';
selectedOpts.height = 'auto';
} else if (selectedOpts.type == 'iframe') {
// iframes cannot auto-resize sensibly for width
selectedOpts.height = 'auto';
} else {
selectedOpts.autoDimensions = false;
}
}
if (selectedOpts.modal) {
selectedOpts.overlayShow = true;
selectedOpts.hideOnOverlayClick = false;
selectedOpts.hideOnContentClick = false;
selectedOpts.enableEscapeButton = false;
selectedOpts.showCloseButton = false;
}
selectedOpts.padding = parseInt(selectedOpts.padding, 10);
selectedOpts.margin = parseInt(selectedOpts.margin, 10);
tmp.css('padding', (selectedOpts.padding + selectedOpts.margin));
$('.trancybox-inline-tmp').unbind('trancybox-cancel').bind('trancybox-change', function() {
$(this).replaceWith(content.children());
});
switch (type) {
case 'html' :
tmp.html( selectedOpts.content );
_process_inline();
break;
case 'inline' :
if ( $(obj).parent().is('#trancybox-content') === true) {
busy = false;
return;
}
$('<div class="trancybox-inline-tmp" />')
.hide()
.insertBefore( $(obj) )
.bind('trancybox-cleanup', function() {
$(this).replaceWith(content.children());
}).bind('trancybox-cancel', function() {
$(this).replaceWith(tmp.children());
});
$(obj).appendTo(tmp);
_process_inline();
break;
case 'image':
busy = false;
$.trancybox.showActivity();
imgPreloader = new Image();
imgPreloader.onerror = function() {
_error();
};
imgPreloader.onload = function() {
busy = true;
imgPreloader.onerror = imgPreloader.onload = null;
_process_image();
};
imgPreloader.src = href;
break;
case 'swf':
selectedOpts.scrolling = 'no';
str = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="' + selectedOpts.width + '" height="' + selectedOpts.height + '"><param name="movie" value="' + href + '"></param>';
emb = '';
$.each(selectedOpts.swf, function(name, val) {
str += '<param name="' + name + '" value="' + val + '"></param>';
emb += ' ' + name + '="' + val + '"';
});
str += '<embed src="' + href + '" type="application/x-shockwave-flash" width="' + selectedOpts.width + '" height="' + selectedOpts.height + '"' + emb + '></embed></object>';
tmp.html(str);
_process_inline();
break;
case 'ajax':
busy = false;
$.trancybox.showActivity();
selectedOpts.ajax.win = selectedOpts.ajax.success;
ajaxLoader = $.ajax($.extend({}, selectedOpts.ajax, {
url : href,
data : selectedOpts.ajax.data || {},
error : function(XMLHttpRequest, textStatus, errorThrown) {
if ( XMLHttpRequest.status > 0 ) {
_error();
}
},
success : function(data, textStatus, XMLHttpRequest) {
var o = typeof XMLHttpRequest == 'object' ? XMLHttpRequest : ajaxLoader;
if (o.status == 200) {
if ( typeof selectedOpts.ajax.win == 'function' ) {
ret = selectedOpts.ajax.win(href, data, textStatus, XMLHttpRequest);
if (ret === false) {
loading.hide();
return;
} else if (typeof ret == 'string' || typeof ret == 'object') {
data = ret;
}
}
tmp.html( data );
_process_inline();
}
}
}));
break;
case 'iframe':
$.trancybox.showActivity();
outer.height(200);
_process_iframe();
break;
}
},
_process_inline = function(assignTo) {
var
w = selectedOpts.width,
h = selectedOpts.height;
if (w.toString().indexOf('%') > -1) {
w = parseInt( ($(window).width() - (selectedOpts.margin * 2)) * parseFloat(w) / 100, 10) + 'px';
} else {
w = w == 'auto' ? 'auto' : w + 'px';
}
if (h.toString().indexOf('%') > -1) {
h = parseInt( ($(window).height() - (selectedOpts.margin * 2)) * parseFloat(h) / 100, 10) + 'px';
} else {
h = h == 'auto' ? 'auto' : h + 'px';
}
tmp.wrapInner('<div id="trancybox-wrap-inner" style="width:' + w + ';height:' + h + ';overflow: ' + (selectedOpts.scrolling == 'auto' ? 'auto' : (selectedOpts.scrolling == 'yes' ? 'scroll' : 'hidden')) + ';position:relative;"></div>');
selectedOpts.width = tmp.width();
selectedOpts.height = tmp.height();
_show();
},
_process_image = function() {
selectedOpts.width = imgPreloader.width;
selectedOpts.height = imgPreloader.height;
$("<img />").attr({
'id' : 'trancybox-img',
'src' : imgPreloader.src,
'alt' : selectedOpts.title
}).appendTo( tmp );
_show();
},
_process_iframe = function () {
if (selectedOpts.width == 'auto') {
selectedOpts.width = 540;
}
_show();
},
_show = function() {
var pos, equal;
loading.hide();
if (wrap.is(":visible") && false === currentOpts.onCleanup(currentArray, currentIndex, currentOpts)) {
$.event.trigger('trancybox-cancel');
busy = false;
return;
}
busy = true;
$(content.add( overlay )).unbind();
$(window).unbind("resize.fb scroll.fb");
$(document).unbind('keydown.fb');
if (wrap.is(":visible") && currentOpts.titlePosition !== 'outside') {
wrap.css('height', wrap.height());
}
currentArray = selectedArray;
currentIndex = selectedIndex;
currentOpts = selectedOpts;
if (currentOpts.overlayShow) {
overlay.css({
'background-color' : currentOpts.overlayColor,
'opacity' : currentOpts.overlayOpacity,
'cursor' : currentOpts.hideOnOverlayClick ? 'pointer' : 'auto',
'height' : $(document).height()
});
if (!overlay.is(':visible')) {
overlay.show();
var frame = $('#trancybox-frame');
if (frame.length > 0) {
frame.attr('src', frame.data('src'));
}
}
} else {
overlay.hide();
}
final_pos = _get_zoom_to();
_process_title();
if (wrap.is(":visible")) {
$( close.add( nav_left ).add( nav_right ) ).hide();
pos = wrap.position(),
start_pos = {
top : pos.top,
left : pos.left,
width : wrap.width(),
height : wrap.height()
};
equal = (start_pos.width == final_pos.width && start_pos.height == final_pos.height);
content.fadeTo(currentOpts.changeFade, 0.3, function() {
var finish_resizing = function() {
content.html( tmp.contents() ).fadeTo(currentOpts.changeFade, 1, _finish);
};
$.event.trigger('trancybox-change');
content
.empty()
.removeAttr('filter')
.css({
'border-width' : currentOpts.padding,
'width' : final_pos.width - currentOpts.padding * 2,
'height' : selectedOpts.autoDimensions ? 'auto' : final_pos.height - titleHeight - currentOpts.padding * 2
});
if (equal) {
finish_resizing();
} else {
fx.prop = 0;
$(fx).animate({prop: 1}, {
duration : currentOpts.changeSpeed,
easing : currentOpts.easingChange,
step : _draw,
complete : finish_resizing
});
}
});
return;
}
wrap.removeAttr("style");
content.css('border-width', currentOpts.padding);
if (currentOpts.transitionIn == 'elastic') {
start_pos = _get_zoom_from();
content.html( tmp.contents() );
wrap.show();
if (currentOpts.opacity) {
final_pos.opacity = 0;
}
fx.prop = 0;
$(fx).animate({prop: 1}, {
duration : currentOpts.speedIn,
easing : currentOpts.easingIn,
step : _draw,
complete : _finish
});
return;
}
if (currentOpts.titlePosition == 'inside' && titleHeight > 0) {
title.show();
}
content
.css({
'width' : final_pos.width - currentOpts.padding * 2,
'height' : selectedOpts.autoDimensions ? 'auto' : final_pos.height - titleHeight - currentOpts.padding * 2
});
if (currentOpts.type!='iframe') {
content.html(tmp.contents());
}
wrap
.css(final_pos)
.fadeIn( currentOpts.transitionIn == 'none' ? 0 : currentOpts.speedIn, _finish );
},
_swap_ids = function(el1, el2) {
var id1=el1.attr('id'), id2 = el2.attr('id');
el1.removeAttr('id');
el2.attr('id', id1);
el1.attr('id', id2);
},
_format_title = function(title) {
if (title && title.length) {
if (currentOpts.titlePosition == 'float') {
return '<table id="trancybox-title-float-wrap" cellpadding="0" cellspacing="0"><tr><td id="trancybox-title-float-left"></td><td id="trancybox-title-float-main">' + title + '</td><td id="trancybox-title-float-right"></td></tr></table>';
}
return '<div id="trancybox-title-' + currentOpts.titlePosition + '">' + title + '</div>';
}
return false;
},
_process_title = function() {
titleStr = currentOpts.title || '';
titleHeight = 0;
title
.empty()
.removeAttr('style')
.removeClass();
if (currentOpts.titleShow === false) {
title.hide();
return;
}
titleStr = $.isFunction(currentOpts.titleFormat) ? currentOpts.titleFormat(titleStr, currentArray, currentIndex, currentOpts) : _format_title(titleStr);
if (!titleStr || titleStr === '') {
title.hide();
return;
}
title
.addClass('trancybox-title-' + currentOpts.titlePosition)
.html( titleStr )
.appendTo( 'body' )
.show();
switch (currentOpts.titlePosition) {
case 'inside':
title
.css({
'width' : final_pos.width - (currentOpts.padding * 2),
'marginLeft' : currentOpts.padding,
'marginRight' : currentOpts.padding
});
titleHeight = title.outerHeight(true);
title.appendTo( outer );
final_pos.height += titleHeight;
break;
case 'over':
title
.css({
'marginLeft' : currentOpts.padding,
'width' : final_pos.width - (currentOpts.padding * 2),
'bottom' : currentOpts.padding
})
.appendTo( outer );
break;
case 'float':
title
.css('left', parseInt((title.width() - final_pos.width - 40)/ 2, 10) * -1)
.appendTo( wrap );
break;
default:
title
.css({
'width' : final_pos.width - (currentOpts.padding * 2),
'paddingLeft' : currentOpts.padding,
'paddingRight' : currentOpts.padding
})
.appendTo( wrap );
break;
}
title.hide();
},
_set_navigation = function() {
if (currentOpts.enableEscapeButton || currentOpts.enableKeyboardNav) {
$(document).bind('keydown.fb', function(e) {
if (e.keyCode == 27 && currentOpts.enableEscapeButton) {
e.preventDefault();
$.trancybox.close();
} else if ((e.keyCode == 37 || e.keyCode == 39) && currentOpts.enableKeyboardNav && e.target.tagName !== 'INPUT' && e.target.tagName !== 'TEXTAREA' && e.target.tagName !== 'SELECT' && e.target.contentEditable != 'true') {
e.preventDefault();
$.trancybox[ e.keyCode == 37 ? 'prev' : 'next']();
}
});
}
if (!currentOpts.showNavArrows) {
nav_left.hide();
nav_right.hide();
return;
}
if ((currentOpts.cyclic && currentArray.length > 1) || currentIndex !== 0) {
nav_left.show();
}
if ((currentOpts.cyclic && currentArray.length > 1) || currentIndex != (currentArray.length -1)) {
nav_right.show();
}
},
_finish = function () {
if (!$.support.opacity) {
content.removeAttr('filter');
wrap.removeAttr('filter');
}
if (selectedOpts.autoDimensions) {
content.css('height', 'auto');
}
wrap.css('height', 'auto');
if (titleStr && titleStr.length) {
title.show();
}
if (currentOpts.showCloseButton) {
close.show();
}
_set_navigation();
if (currentOpts.hideOnContentClick) {
content.bind('click', $.trancybox.close);
}
if (currentOpts.hideOnOverlayClick) {
overlay.bind('click', $.trancybox.close);
}
$(window).bind("resize.fb", $.trancybox.resize);
if (currentOpts.centerOnScroll) {
$(window).bind("scroll.fb", $.trancybox.center);
}
function complete() {
wrap.show();
busy = false;
$.trancybox.center();
currentOpts.onComplete(currentArray, currentIndex, currentOpts);
$.event.trigger('trancybox-complete', [currentOpts]);
}
if (currentOpts.type == 'iframe') {
var count = 0;
$('<iframe id="trancybox-frame" name="trancybox-frame' + new Date().getTime() + '" frameborder="0" hspace="0" allowtransparency="true" height="0" scrolling="' + currentOpts.scrolling + '" src="' + currentOpts.href + '"></iframe>').appendTo(content);
$.event.trigger('trancybox-frame');
if(selectedOpts.height=='auto') {
$('#trancybox-frame').on('load', function () {
var measured_height = $('#trancybox-frame').contents().height();
if (measured_height > 500) {
measured_height = 500;
}
content.height(measured_height);
complete();
});
}
} else {
complete();
}
_preload_images();
},
_preload_images = function() {
var href,
objNext;
if ((currentArray.length -1) > currentIndex) {
href = currentArray[ currentIndex + 1 ].href;
if (typeof href !== 'undefined' && href.match(imgRegExp)) {
objNext = new Image();
objNext.src = href;
}
}
if (currentIndex > 0) {
href = currentArray[ currentIndex - 1 ].href;
if (typeof href !== 'undefined' && href.match(imgRegExp)) {
objNext = new Image();
objNext.src = href;
}
}
},
_draw = function(pos) {
var dim = {
width : parseInt(start_pos.width + (final_pos.width - start_pos.width) * pos, 10),
height : parseInt(start_pos.height + (final_pos.height - start_pos.height) * pos, 10),
top : parseInt(start_pos.top + (final_pos.top - start_pos.top) * pos, 10),
left : parseInt(start_pos.left + (final_pos.left - start_pos.left) * pos, 10)
};
if (typeof final_pos.opacity !== 'undefined') {
dim.opacity = pos < 0.5 ? 0.5 : pos;
}
wrap.css(dim);
content.css({
'width' : dim.width - currentOpts.padding * 2,
'height' : dim.height - (titleHeight * pos) - currentOpts.padding * 2
});
},
_get_viewport = function() {
return [
$(window).width() - (currentOpts.marginRight || (currentOpts.margin * 2)),
$(window).height() - (currentOpts.marginBottom || (currentOpts.margin * 2)),
$(document).scrollLeft() + (currentOpts.marginLeft || currentOpts.margin),
$(document).scrollTop() + (currentOpts.marginTop || currentOpts.margin)
];
},
_get_zoom_to = function () {
var view = _get_viewport(),
to = {},
resize = currentOpts.autoScale,
double_padding = currentOpts.padding * 2,
ratio;
if (currentOpts.width.toString().indexOf('%') > -1) {
to.width = parseInt((view[0] * parseFloat(currentOpts.width)) / 100, 10);
} else {
to.width = currentOpts.width + double_padding;
}
if (currentOpts.height == 'auto') {
to.height = 'auto';
} else {
if (currentOpts.height.toString().indexOf('%') > -1) {
to.height = parseInt((view[1] * parseFloat(currentOpts.height)) / 100, 10);
} else {
to.height = currentOpts.height + double_padding;
}
}
if (resize && (to.width > view[0] || to.height > view[1])) {
if (selectedOpts.type == 'image' || selectedOpts.type == 'swf') {
ratio = (currentOpts.width ) / (currentOpts.height );
if ((to.width ) > view[0]) {
to.width = view[0];
to.height = parseInt(((to.width - double_padding) / ratio) + double_padding, 10);
}
if ((to.height) > view[1]) {
to.height = view[1];
to.width = parseInt(((to.height - double_padding) * ratio) + double_padding, 10);
}
} else {
to.width = Math.min(to.width, view[0]);
to.height = Math.min(to.height, view[1]);
}
}
to.top = parseInt(Math.max(view[3] - 20, view[3] + ((view[1] - to.height - 40) * 0.5)), 10);
to.left = parseInt(Math.max(view[2] - 20, view[2] + ((view[0] - to.width - 40) * 0.5)), 10);
return to;
},
_get_obj_pos = function(obj) {
var pos = obj.offset();
pos.top += parseInt( obj.css('paddingTop'), 10 ) || 0;
pos.left += parseInt( obj.css('paddingLeft'), 10 ) || 0;
pos.top += parseInt( obj.css('border-top-width'), 10 ) || 0;
pos.left += parseInt( obj.css('border-left-width'), 10 ) || 0;
pos.width = obj.width();
pos.height = obj.height();
return pos;
},
_get_zoom_from = function() {
var orig = selectedOpts.orig ? $(selectedOpts.orig) : false,
from = {},
pos,
view;
if (orig && orig.length) {
pos = _get_obj_pos(orig);
from = {
width : pos.width + (currentOpts.padding * 2),
height : pos.height + (currentOpts.padding * 2),
top : pos.top - currentOpts.padding - 20,
left : pos.left - currentOpts.padding - 20
};
} else {
view = _get_viewport();
from = {
width : currentOpts.padding * 2,
height : currentOpts.padding * 2,
top : parseInt(view[3] + view[1] * 0.5, 10),
left : parseInt(view[2] + view[0] * 0.5, 10)
};
}
return from;
},
_animate_loading = function() {
if (!loading.is(':visible')){
clearInterval(loadingTimer);
return;
}
$('div', loading).css('top', (loadingFrame * -40) + 'px');
loadingFrame = (loadingFrame + 1) % 12;
};
/*
* Public methods
*/
$.fn.trancybox = function(options) {
if (!$(this).length) {
return this;
}
$(this)
.data('trancybox', $.extend({}, options, ($.metadata ? $(this).metadata() : {})))
.unbind('click.fb')
.bind('click.fb', function(e) {
e.preventDefault();
if (busy) {
return;
}
busy = true;
$(this).blur();
selectedArray = [];
selectedIndex = 0;
var rel = $(this).attr('rel') || '';
if (!rel || rel == '' || rel === 'nofollow') {
selectedArray.push(this);
} else {
selectedArray = $("a[rel=" + rel + "], area[rel=" + rel + "]");
selectedIndex = selectedArray.index( this );
}
_start();
return;
});
return this;
};
$.trancybox = function(obj) {
var opts;
if (busy) {
return;
}
busy = true;
opts = typeof arguments[1] !== 'undefined' ? arguments[1] : {};
selectedArray = [];
selectedIndex = parseInt(opts.index, 10) || 0;
if ($.isArray(obj)) {
for (var i = 0, j = obj.length; i < j; i++) {
if (typeof obj[i] == 'object') {
$(obj[i]).data('trancybox', $.extend({}, opts, obj[i]));
} else {
obj[i] = $({}).data('trancybox', $.extend({content : obj[i]}, opts));
}
}
selectedArray = jQuery.merge(selectedArray, obj);
} else {
if (typeof obj == 'object') {
$(obj).data('trancybox', $.extend({}, opts, obj));
} else {
obj = $({}).data('trancybox', $.extend({content : obj}, opts));
}
selectedArray.push(obj);
}
if (selectedIndex > selectedArray.length || selectedIndex < 0) {
selectedIndex = 0;
}
_start();
};
$.trancybox.showActivity = function() {
clearInterval(loadingTimer);
loading.show();
loadingTimer = setInterval(_animate_loading, 66);
};
$.trancybox.hideActivity = function() {
loading.hide();
};
$.trancybox.next = function() {
return $.trancybox.pos( currentIndex + 1);
};
$.trancybox.prev = function() {
return $.trancybox.pos( currentIndex - 1);
};
$.trancybox.pos = function(pos) {
if (busy) {
return;
}
pos = parseInt(pos);
selectedArray = currentArray;
if (pos > -1 && pos < currentArray.length) {
selectedIndex = pos;
_start();
} else if (currentOpts.cyclic && currentArray.length > 1) {
selectedIndex = pos >= currentArray.length ? 0 : currentArray.length - 1;
_start();
}
return;
};
$.trancybox.cancel = function() {
if (busy) {
return;
}
busy = true;
$.event.trigger('trancybox-cancel');
_abort();
selectedOpts.onCancel(selectedArray, selectedIndex, selectedOpts);
busy = false;
};
// Note: within an iframe use - parent.$.trancybox.close();
$.trancybox.close = function(e) {
if (busy || wrap.is(':hidden')) {
return;
}
busy = true;
var close_event = $.Event('trancybox-close');
$.event.trigger(close_event);
if ((currentOpts && false === currentOpts.onCleanup(currentArray, currentIndex, currentOpts)) || close_event.isDefaultPrevented()) {
busy = false;
return;
}
if (currentOpts.type=='iframe') {
content.html('');
}
_abort();
$(close.add( nav_left ).add( nav_right )).hide();
$(content.add( overlay )).unbind();
$(window).unbind("resize.fb scroll.fb");
$(document).unbind('keydown.fb');
content.find('iframe').attr('src', 'about:blank');
if (currentOpts.titlePosition !== 'inside') {
title.empty();
}
wrap.stop();