472 lines
20 KiB
JavaScript
472 lines
20 KiB
JavaScript
/**
|
||
* 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 CCAttribution-ShareAlike 2.5 Brazil - http://creativecommons.org/licenses/by-sa/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: false, // (boolean) Boolean that informs if the navigation (next and prev button) will be fixed or not in the interface.
|
||
// Configuration related to images
|
||
imageLoading: 'images/lightbox-ico-loading.gif', // (string) Path and the name of the loading icon
|
||
imageBtnPrev: 'images/lightbox-btn-prev.gif', // (string) Path and the name of the prev button image
|
||
imageBtnNext: 'images/lightbox-btn-next.gif', // (string) Path and the name of the next button image
|
||
imageBtnClose: 'images/lightbox-btn-close.gif', // (string) Path and the name of the close btn
|
||
imageBlank: '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: '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.
|
||
// Don<6F>t 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? Let<65>s see it.
|
||
if ( jQueryMatchedObj.length == 1 ) {
|
||
settings.imageArray.push(new Array(objClicked.getAttribute('href'),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('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:
|
||
<div id="jquery-overlay"></div>
|
||
<div id="jquery-lightbox">
|
||
<div id="lightbox-container-image-box">
|
||
<div id="lightbox-container-image">
|
||
<img src="../fotos/XX.jpg" id="lightbox-image">
|
||
<div id="lightbox-nav">
|
||
<a href="#" id="lightbox-nav-btnPrev"></a>
|
||
<a href="#" id="lightbox-nav-btnNext"></a>
|
||
</div>
|
||
<div id="lightbox-loading">
|
||
<a href="#" id="lightbox-loading-link">
|
||
<img src="../images/lightbox-ico-loading.gif">
|
||
</a>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div id="lightbox-container-image-data-box">
|
||
<div id="lightbox-container-image-data">
|
||
<div id="lightbox-image-details">
|
||
<span id="lightbox-image-details-caption"></span>
|
||
<span id="lightbox-image-details-currentNumber"></span>
|
||
</div>
|
||
<div id="lightbox-secNav">
|
||
<a href="#" id="lightbox-secNav-btnClose">
|
||
<img src="../images/lightbox-btn-close.gif">
|
||
</a>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
*
|
||
*/
|
||
function _set_interface() {
|
||
// Apply the HTML markup into body tag
|
||
$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="' + settings.imageLoading + '"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="' + settings.imageBtnClose + '"></a></div></div></div></div>');
|
||
// Get page sizes
|
||
var arrPageSizes = ___getPageSize();
|
||
// Style overlay and show it
|
||
$('#jquery-overlay').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
|
||
$('#jquery-lightbox').css({
|
||
top: arrPageScroll[1] + (arrPageSizes[3] / 10),
|
||
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 image<67>s preloader to calculate it<69>s 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 image<67>s width that will be showed
|
||
* @param integer intImageHeight The image<67>s 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 image<67>s width and the left and right padding value
|
||
var intHeight = (intImageHeight + (settings.containerBorderSize * 2)); // Plus the image<67>s 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(settings.imageArray[settings.activeImage][1]).show();
|
||
}
|
||
// 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 it<69>s 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').unbind().hover(function() {
|
||
$(this).css({ 'background' : 'url(' + settings.imageBtnNext + ') right 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;
|
||
});
|
||
}
|
||
}
|
||
// 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 we<77>re 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 we<77>re 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
|