/**
* jQuery lightBox plugin This jQuery plugin was inspired and based on Lightbox
* 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/) and
* adapted to me for use like a plugin from jQuery.
*
* @name jquery-lightbox-0.5.js
* @author Leandro Vieira Pinho - http://leandrovieira.com
* @version 0.5
* @date April 11, 2008
* @category jQuery plugin
* @copyright (c) 2008 Leandro Vieira Pinho (leandrovieira.com)
* @license CC Attribution-No Derivative Works 2.5 Brazil -
* http://creativecommons.org/licenses/by-nd/2.5/br/deed.en_US
* @example Visit http://leandrovieira.com/projects/jquery/lightbox/ for more
* informations about this jQuery plugin
*/
// Offering a Custom Alias suport - More info:
// http://docs.jquery.com/Plugins/Authoring#Custom_Alias
(function($) {
/**
* $ is an alias to jQuery object
*
*/
$.fn.lightBox = function(settings) {
// Settings to configure the jQuery lightBox plugin how you like
settings = jQuery.extend( {
// Configuration related to overlay
overlayBgColor : '#000', // (string) Background color to overlay;
// inform a hexadecimal value like:
// #RRGGBB. Where RR, GG, and BB are the
// hexadecimal values for the red,
// green, and blue values of the color.
overlayOpacity : 0.8, // (integer) Opacity value to overlay;
// inform: 0.X. Where X are number from 0 to
// 9
// Configuration related to navigation
fixedNavigation : true, // (boolean) Boolean that informs if the
// navigation (next and prev button)
// will be fixed or not in the
// interface.
// Configuration related to images
imageLoading : location.protocol + '//' + location.host
+ '/modulos/lightbox/images/lightbox-ico-loading.gif', // (string)
// Path
// and the name
// of the
// loading icon
imageBtnPrev : location.protocol + '//' + location.host
+ '/modulos/lightbox/images/lightbox-btn-prev.gif', // (string)
// Path
// and
// the name of the
// prev button image
imageBtnNext : location.protocol + '//' + location.host
+ '/modulos/lightbox/images/lightbox-btn-next.gif', // (string)
// Path
// and
// the name of the
// next button image
imageBtnClose : location.protocol + '//' + location.host
+ '/modulos/lightbox/images/lightbox-btn-close.gif', // (string)
// Path
// and the name
// of the close
// btn
imageBlank : location.protocol + '//' + location.host
+ '/modulos/lightbox/images/lightbox-blank.gif', // (string)
// Path
// and
// the
// name of a blank image
// (one pixel)
// Configuration related to container image box
containerBorderSize : 10, // (integer) If you adjust the padding
// in the CSS for the container,
// #lightbox-container-image-box, you
// will need to update this value
containerResizeSpeed : 400, // (integer) Specify the resize duration
// of container image. These number are
// miliseconds. 400 is default.
// Configuration related to texts in caption. For example: Image 2
// of 8. You can alter either "Image" and "of" texts.
txtImage : 'Imagen', // (string) Specify text "Image"
txtOf : 'of', // (string) Specify text "of"
// Configuration related to keyboard navigation
keyToClose : 'c', // (string) (c = close) Letter to close the
// jQuery lightBox interface. Beyond this
// letter, the letter X and the SCAPE key is
// used to.
keyToPrev : 'p', // (string) (p = previous) Letter to show the
// previous image
keyToNext : 'n', // (string) (n = next) Letter to show the next
// image.
// Donīt alter these variables in any way
imageArray : [],
activeImage : 0
}, settings);
// Caching the jQuery object with all elements matched
var jQueryMatchedObj = this; // This, in this context, refer to
// jQuery object
/**
* Initializing the plugin calling the start function
*
* @return boolean false
*/
function _initialize() {
_start(this, jQueryMatchedObj); // This, in this context, refer to
// object (link) which the user have
// clicked
return false; // Avoid the browser following the link
}
/**
* Start the jQuery lightBox plugin
*
* @param object
* objClicked The object (link) whick the user have clicked
* @param object
* jQueryMatchedObj The jQuery object with all elements
* matched
*/
function _start(objClicked, jQueryMatchedObj) {
// Hime some elements to avoid conflict with overlay in IE. These
// elements appear above the overlay.
$('embed, object, select').css( {
'visibility' : 'hidden'
});
// Call the function to create the markup structure; style some
// elements; assign events in some elements.
_set_interface();
// Unset total images in imageArray
settings.imageArray.length = 0;
// Unset image active information
settings.activeImage = 0;
// We have an image set? Or just an image? Letīs see it.
if (jQueryMatchedObj.length == 1) {
settings.imageArray.push(new Array(objClicked
.getAttribute('href'), objClicked.getAttribute('id'),
objClicked.getAttribute('title')));
} else {
// Add an Array (as many as we have), with href and title
// atributes, inside the Array that storage the images
// references
for ( var i = 0; i < jQueryMatchedObj.length; i++) {
settings.imageArray.push(new Array(jQueryMatchedObj[i]
.getAttribute('href'), jQueryMatchedObj[i]
.getAttribute('id'), jQueryMatchedObj[i]
.getAttribute('title')));
}
}
while (settings.imageArray[settings.activeImage][0] != objClicked
.getAttribute('href')) {
settings.activeImage++;
}
// Call the function that prepares image exibition
_set_image_to_view();
}
/**
* Create the jQuery lightBox plugin interface
*
* The HTML markup will be like that:
*
*
*/
function _set_interface() {
// Apply the HTML markup into body tag
$('body')
.append(
'');
// Get page sizes
var arrPageSizes = ___getPageSize();
// Style overlay and show it
$('#jquery-overlay').css( {
backgroundColor : settings.overlayBgColor,
zIndex : '1000',
opacity : settings.overlayOpacity,
width : arrPageSizes[0],
height : arrPageSizes[1]
}).fadeIn();
// Get page scroll
var arrPageScroll = ___getPageScroll();
// Calculate top and left offset for the jquery-lightbox div object
// and show it
$('#jquery-lightbox').css( {
top : arrPageScroll[1] + (arrPageSizes[3] / 10),
zIndex : '2000',
left : arrPageScroll[0]
}).show();
// Assigning click events in elements to close overlay
$('#jquery-overlay,#jquery-lightbox').click(function() {
_finish();
});
// Assign the _finish function to lightbox-loading-link and
// lightbox-secNav-btnClose objects
$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(
function() {
_finish();
return false;
});
// If window was resized, calculate the new overlay dimensions
$(window).resize(function() {
// Get page sizes
var arrPageSizes = ___getPageSize();
// Style overlay and show it
$('#jquery-overlay').css( {
width : arrPageSizes[0],
height : arrPageSizes[1]
});
// Get page scroll
var arrPageScroll = ___getPageScroll();
// Calculate top and left offset for the jquery-lightbox div
// object and show it
$('#jquery-lightbox').css( {
top : arrPageScroll[1] + (arrPageSizes[3] / 10),
left : arrPageScroll[0]
});
});
}
/**
* Prepares image exibition; doing a imageīs preloader to calculate itīs
* size
*
*/
function _set_image_to_view() { // show the loading
// Show the loading
$('#lightbox-loading').show();
if (settings.fixedNavigation) {
$(
'#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber')
.hide();
} else {
// Hide some elements
$(
'#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber')
.hide();
}
// Image preload process
var objImagePreloader = new Image();
objImagePreloader.onload = function() {
$('#lightbox-image').attr('src',
settings.imageArray[settings.activeImage][0]);
// Perfomance an effect in the image container resizing it
_resize_container_image_box(objImagePreloader.width,
objImagePreloader.height);
// clear onLoad, IE behaves irratically with animated gifs
// otherwise
objImagePreloader.onload = function() {
};
};
objImagePreloader.src = settings.imageArray[settings.activeImage][0];
}
;
/**
* Perfomance an effect in the image container resizing it
*
* @param integer
* intImageWidth The imageīs width that will be showed
* @param integer
* intImageHeight The imageīs height that will be showed
*/
function _resize_container_image_box(intImageWidth, intImageHeight) {
// Get current width and height
var intCurrentWidth = $('#lightbox-container-image-box').width();
var intCurrentHeight = $('#lightbox-container-image-box').height();
// Get the width and height of the selected image plus the padding
var intWidth = (intImageWidth + (settings.containerBorderSize * 2)); // Plus
// the
// imageīs
// width
// and
// the
// left
// and
// right
// padding
// value
var intHeight = (intImageHeight + (settings.containerBorderSize * 2)); // Plus
// the
// imageīs
// height
// and
// the
// left
// and
// right
// padding
// value
// Diferences
var intDiffW = intCurrentWidth - intWidth;
var intDiffH = intCurrentHeight - intHeight;
// Perfomance the effect
$('#lightbox-container-image-box').animate( {
width : intWidth,
height : intHeight
}, settings.containerResizeSpeed, function() {
_show_image();
});
if ((intDiffW == 0) && (intDiffH == 0)) {
if ($.browser.msie) {
___pause(250);
} else {
___pause(100);
}
}
$('#lightbox-container-image-data-box').css( {
width : intImageWidth
});
$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css( {
height : intImageHeight + (settings.containerBorderSize * 2)
});
}
;
/**
* Show the prepared image
*
*/
function _show_image() {
$('#lightbox-loading').hide();
$('#lightbox-image').fadeIn(function() {
_show_image_data();
_set_navigation();
});
_preload_neighbor_images();
}
;
/**
* Show the image information
*
*/
function _show_image_data() {
$('#lightbox-container-image-data-box').slideDown('fast');
$('#lightbox-image-details-caption').hide();
if (settings.imageArray[settings.activeImage][1]) {
$('#lightbox-image-details-caption').html('').show();
// ' Descargar
// Foto '
}
// If we have a image set, display 'Image X of X'
if (settings.imageArray.length > 1) {
$('#lightbox-image-details-currentNumber').html(
settings.txtImage + ' ' + (settings.activeImage + 1)
+ ' ' + settings.txtOf + ' '
+ settings.imageArray.length).show();
}
}
/**
* Display the button navigations
*
*/
function _set_navigation() {
$('#lightbox-nav').show();
// Instead to define this configuration in CSS file, we define here.
// And itīs need to IE. Just.
$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext')
.css(
{
'background' : 'transparent url(' + settings.imageBlank + ') no-repeat'
});
// Show the prev button, if not the first image in set
if (settings.activeImage != 0) {
if (settings.fixedNavigation) {
$('#lightbox-nav-btnPrev')
.css(
{
'background' : 'url(' + settings.imageBtnPrev + ') left 15% no-repeat'
})
.unbind()
.bind(
'click',
function() {
settings.activeImage = settings.activeImage - 1;
_set_image_to_view();
return false;
});
} else {
// Show the images button for Next buttons
$('#lightbox-nav-btnPrev')
.unbind()
.hover(
function() {
$(this)
.css(
{
'background' : 'url(' + settings.imageBtnPrev + ') left 15% no-repeat'
});
},
function() {
$(this)
.css(
{
'background' : 'transparent url(' + settings.imageBlank + ') no-repeat'
});
})
.show()
.bind(
'click',
function() {
settings.activeImage = settings.activeImage - 1;
_set_image_to_view();
return false;
});
}
}
// Show the next button, if not the last image in set
if (settings.activeImage != (settings.imageArray.length - 1)) {
if (settings.fixedNavigation) {
$('#lightbox-nav-btnNext')
.css(
{
'background' : 'url(' + settings.imageBtnNext + ') right 15% no-repeat'
})
.unbind()
.bind(
'click',
function() {
settings.activeImage = settings.activeImage + 1;
_set_image_to_view();
return false;
});
} else {
// Show the images button for Next buttons
$('#lightbox-nav-btnNext')
.hover(
function() {
$(this)
.css(
{
'background' : 'url(' + settings.imageBtnNext + ') right 15% no-repeat'
});
},
function() {
$(this)
.css(
{
'background' : 'transparent url(' + settings.imageBlank + ') no-repeat'
});
})
.unbind()
.show()
.bind(
'click',
function() {
settings.activeImage = settings.activeImage + 1;
_set_image_to_view();
return false;
});
}
}
// Enable keyboard navigation
_enable_keyboard_navigation();
}
/**
* Enable a support to keyboard navigation
*
*/
function _enable_keyboard_navigation() {
$(document).keydown(function(objEvent) {
_keyboard_action(objEvent);
});
}
/**
* Disable the support to keyboard navigation
*
*/
function _disable_keyboard_navigation() {
$(document).unbind();
}
/**
* Perform the keyboard actions
*
*/
function _keyboard_action(objEvent) {
// To ie
if (objEvent == null) {
keycode = event.keyCode;
escapeKey = 27;
// To Mozilla
} else {
keycode = objEvent.keyCode;
escapeKey = objEvent.DOM_VK_ESCAPE;
}
// Get the key in lower case form
key = String.fromCharCode(keycode).toLowerCase();
// Verify the keys to close the ligthBox
if ((key == settings.keyToClose) || (key == 'x')
|| (keycode == escapeKey)) {
_finish();
}
// Verify the key to show the previous image
if ((key == settings.keyToPrev) || (keycode == 37)) {
// If weīre not showing the first image, call the previous
if (settings.activeImage != 0) {
settings.activeImage = settings.activeImage - 1;
_set_image_to_view();
_disable_keyboard_navigation();
}
}
// Verify the key to show the next image
if ((key == settings.keyToNext) || (keycode == 39)) {
// If weīre not showing the last image, call the next
if (settings.activeImage != (settings.imageArray.length - 1)) {
settings.activeImage = settings.activeImage + 1;
_set_image_to_view();
_disable_keyboard_navigation();
}
}
}
/**
* Preload prev and next images being showed
*
*/
function _preload_neighbor_images() {
if ((settings.imageArray.length - 1) > settings.activeImage) {
objNext = new Image();
objNext.src = settings.imageArray[settings.activeImage + 1][0];
}
if (settings.activeImage > 0) {
objPrev = new Image();
objPrev.src = settings.imageArray[settings.activeImage - 1][0];
}
}
/**
* Remove jQuery lightBox plugin HTML markup
*
*/
function _finish() {
$('#jquery-lightbox').remove();
$('#jquery-overlay').fadeOut(function() {
$('#jquery-overlay').remove();
});
// Show some elements to avoid conflict with overlay in IE. These
// elements appear above the overlay.
$('embed, object, select').css( {
'visibility' : 'visible'
});
}
/**
* / THIRD FUNCTION getPageSize() by quirksmode.com
*
* @return Array Return an array with page width, height and window
* width, height
*/
function ___getPageSize() {
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = window.innerWidth + window.scrollMaxX;
yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight) { // all
// but
// Explorer
// Mac
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else { // Explorer Mac...would also work in Explorer 6 Strict,
// Mozilla and Safari
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) { // all except Explorer
if (document.documentElement.clientWidth) {
windowWidth = document.documentElement.clientWidth;
} else {
windowWidth = self.innerWidth;
}
windowHeight = self.innerHeight;
} else if (document.documentElement
&& document.documentElement.clientHeight) { // Explorer 6
// Strict Mode
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else if (document.body) { // other Explorers
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
// for small pages with total height less then height of the
// viewport
if (yScroll < windowHeight) {
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
// for small pages with total width less then width of the viewport
if (xScroll < windowWidth) {
pageWidth = xScroll;
} else {
pageWidth = windowWidth;
}
arrayPageSize = new Array(pageWidth, pageHeight, windowWidth,
windowHeight);
return arrayPageSize;
}
;
/**
* / THIRD FUNCTION getPageScroll() by quirksmode.com
*
* @return Array Return an array with x,y page scroll values.
*/
function ___getPageScroll() {
var xScroll, yScroll;
if (self.pageYOffset) {
yScroll = self.pageYOffset;
xScroll = self.pageXOffset;
} else if (document.documentElement
&& document.documentElement.scrollTop) { // Explorer 6
// Strict
yScroll = document.documentElement.scrollTop;
xScroll = document.documentElement.scrollLeft;
} else if (document.body) {// all other Explorers
yScroll = document.body.scrollTop;
xScroll = document.body.scrollLeft;
}
arrayPageScroll = new Array(xScroll, yScroll);
return arrayPageScroll;
}
;
/**
* Stop the code execution from a escified time in milisecond
*
*/
function ___pause(ms) {
var date = new Date();
curDate = null;
do {
var curDate = new Date();
} while (curDate - date < ms);
}
;
// Return the jQuery object for chaining. The unbind method is used to
// avoid click conflict when the plugin is called more than once
return this.unbind('click').click(_initialize);
};
})(jQuery); // Call and execute the function immediately passing the jQuery
// object
