/*
* $Revision$
* $Date$
*
* Copyright (C) 1999-2009 Jive Software. All rights reserved.
*
* This software is the proprietary information of Jive Software. Use is subject to license terms.
*/
/*
* $ lightbox_me
* By: Buck Wilson
* Version : 2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function($) {
$.fn.lightbox_me = function(options) {
return this.each(function() {
var
opts = $.extend({}, $.fn.lightbox_me.defaults, options),
$overlay = $(''),
$self = $(this),
$iframe = $(''),
ie6 = ($.browser.msie && $.browser.version < 7);
/*----------------------------------------------------
DOM Building
---------------------------------------------------- */
if (ie6) { $('body').append($iframe) } // iframe shim for ie6, to hide select elements
$('body').append($self).append($overlay);
/*----------------------------------------------------
CSS stuffs
---------------------------------------------------- */
// set css of the modal'd window
setSelfPosition();
$self.css({left: '50%', marginLeft: ($self.outerWidth() / 2) * -1, zIndex: (opts.zIndex + 3) });
// set css of the overlay
setOverlayHeight(); // pulled this into a function because it is called on window resize.
$overlay
.css({ position: 'absolute', width: '100%', top: 0, left: 0, right: 0, bottom: 0, zIndex: (opts.zIndex + 2), display: 'none' })
.css(opts.overlayCSS);
/*----------------------------------------------------
Animate it in.
---------------------------------------------------- */
$overlay.fadeIn(opts.overlaySpeed, function() {
$self[opts.appearEffect](opts.lightboxSpeed, function() { setOverlayHeight(); opts.onLoad()});
});
/*----------------------------------------------------
Bind Events
---------------------------------------------------- */
$(window).resize(setOverlayHeight)
.resize(setSelfPosition)
.scroll(setSelfPosition)
.keypress(observeEscapePress);
$self.find(opts.closeSelector).add($overlay).click(function() { closeLightbox(); return false; });
$self.bind('close', closeLightbox);
$self.bind('resize', setSelfPosition);
/*--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- */
/*----------------------------------------------------
Private Functions
---------------------------------------------------- */
/* Remove or hide all elements */
function closeLightbox() {
if (opts.destroyOnClose) {
$self.add($overlay).remove();
} else {
$self.add($overlay).hide();
}
$iframe.remove();
$(window).unbind('resize', setOverlayHeight);
$(window).unbind('resize', setSelfPosition);
opts.onClose();
}
/* Function to bind to the window to observe the escape key press */
function observeEscapePress(e) {
if(e.keyCode == 27 || (e.DOM_VK_ESCAPE == 27 && e.which==0)) closeLightbox();
}
/* Set the height of the overlay
: if the document height is taller than the window, then set the overlay height to the document height.
: otherwise, just set overlay height: 100%
*/
function setOverlayHeight() {
if ($(window).height() < $(document).height()) {
$overlay.css({height: $(document).height() + 'px'});
} else {
$overlay.css({height: '100%'});
if (ie6) {$('html,body').css('height','100%'); } // ie6 hack for height: 100%; TODO: handle this in IE7
}
}
/* Set the position of the modal'd window ($self)
: if $self is taller than the window, then make it absolutely positioned
: otherwise fixed
*/
function setSelfPosition() {
var s = $self[0].style;
if (($self.height() + 80 >= $(window).height()) && ($self.css('position') != 'absolute' || ie6)) {
var topOffset = $(document).scrollTop() + 40;
$self.css({position: 'absolute', top: topOffset + 'px', marginTop: 0})
if (ie6) {
s.removeExpression('top');
}
} else if ($self.height()+ 80 < $(window).height()) {
if (ie6) {
s.position = 'absolute';
if (opts.centered) {
s.setExpression('top', '(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"')
s.marginTop = 0;
} else {
var top = (opts.modalCSS && opts.modalCSS.top) ? parseInt(opts.modalCSS.top) : 0;
s.setExpression('top', '((blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"')
}
} else {
if (opts.centered) {
$self.css({ position: 'fixed', top: '50%', marginTop: ($self.outerHeight() / 2) * -1})
} else {
$self.css({ position: 'fixed'}).css(opts.modalCSS);
}
}
}
}
});
};
$.fn.lightbox_me.defaults = {
// animation
appearEffect: "fadeIn",
overlaySpeed: 300,
lightboxSpeed: "fast",
// close
closeSelector: ".close",
closeClick: true,
closeEsc: true,
// behavior
destroyOnClose: false,
// callbacks
onLoad: function() {},
onClose: function() {},
// style
classPrefix: 'lb',
zIndex: 999,
centered: false,
modalCSS: {top: '40px'},
overlayCSS: {background: 'black', opacity: .6}
}
})(jQuery);