/**
* jQuery overlay plugin
* This jQuery plugin was inspired and based on
* - Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
* - jquery-lightbox-0.5 by Leandro Vieira Pinho - http://leandrovieira.com
* @date April 2011
* @category jQuery plugin
* @copyright (c) 2011 Kevin Adametz
* @license CCAttribution-ShareAlike 2.5 Brazil - http://creativecommons.org/licenses/by-sa/2.5/br/deed.en_US
*/
// Offering a Custom Alias suport - More info: http://docs.jquery.com/Plugins/Authoring#Custom_Alias
(function($) {
/**
* $ is an alias to jQuery object
*
*/
$.fn.overlay = 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
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: 'Image', // (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: [],
naviArray: [],
activeImage: 0,
serverDir: false,
contentDir: false,
url: false
},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.
var name = $(objClicked).attr('name');
//read Text and Images from php
$.get(settings.serverDir + settings.contentDir + "contentSee.php", { element: name }, function(data){
/*data.text;
data.logo;
data.img[]*/
if(data.text){
$('#lbTextContainer').html(data.text);
}
if(data.logo){
$('#lbLogo').attr('src',data.logo);
}
if(data.img){
//XLog("Data Loaded: " + data);
settings.activeImage = 0;
for ( var i = 0; i < data.img.length; i++ ) {
settings.imageArray.push(data.img[i]);
//set navigation
}
//set navigation for img
_set_navigation();
//load the first img
_set_image_to_view();
}
});
}
/*
*/
function _set_interface() {
// Apply the HTML markup into body tag
$('body').append('');
// Get page sizes
var arrPageSizes = ___getPageSize();
// Style overlay and show it
$('#lbOverlay').css({
backgroundColor: settings.overlayBgColor,
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
$('#lbMain').css({
top: arrPageScroll[1] + (arrPageSizes[3] / 10),
left: arrPageScroll[0]
}).show();
$('#lbImage').hide();
$('#lbLoading').show();
// Assigning click events in elements to close overlay
$('#lbOverlay').click(function() {
_finish();
});
// Assign the _finish function to lightbox-loading-link and lightbox-secNav-btnClose objects
$('#lbClose').click(function() {
_finish();
return false;
});
_enable_keyboard_navigation();
// If window was resized, calculate the new overlay dimensions
$(window).resize(function() {
// Get page sizes
var arrPageSizes = ___getPageSize();
// Style overlay and show it
$('#lbOverlay').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
$('#lbLoading').show();
$('#lbImage').hide();
// Image preload process
var objImagePreloader = new Image();
objImagePreloader.onload = function() {
$('#lbImage').attr('src',settings.imageArray[settings.activeImage]);
// Perfomance an effect in the image container resizing it
_show_image();
// clear onLoad, IE behaves irratically with animated gifs otherwise
objImagePreloader.onload=function(){};
};
objImagePreloader.src = settings.imageArray[settings.activeImage];
};
/**
* Show the prepared image
*
*/
function _show_image() {
$('#lbLoading').hide();
$('#lbImage').fadeIn(function() {
_set_navigation();
});
_preload_neighbor_images();
};
/**
* Display the button navigations
*
*/
function _set_navigation() {
if(settings.imageArray.length < 2){
return false;
}
$('#lbSwitchNav').show();
for ( var i = 0; i < settings.imageArray.length; i++ ) {
settings.imageArray[i];
var name = 'lbswitch'+ (i+1);
//make navigation if not exist
if(!$('#' + name).length){
$('#lbSwitchNav').append('');
$('#' + name).unbind().bind('click',function() {
settings.activeImage = parseInt(this['rel']-1);
_set_image_to_view();
XLog(this['rel']);
return e.preventDefault();
});
}
//remove all active
$('#' + name).removeClass('active');
}
//set active
$('#lbswitch'+ (settings.activeImage+1)).addClass('active');
// 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;
if(!escapeKey){
escapeKey = 27;
}
}
// 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];
}
if ( settings.activeImage > 0 ) {
objPrev = new Image();
objPrev.src = settings.imageArray[settings.activeImage -1];
}
}
/**
* Remove jQuery lightBox plugin HTML markup
*
*/
function _finish() {
$('#lbMain').remove();
$('#lbOverlay').fadeOut(function() { $('#lbOverlay').remove(); });
// Show some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
$('embed, object, select').css({ 'visibility' : 'visible' });
_disable_keyboard_navigation();
}
/**
/ 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
