/
jetpack-carousel.js
1525 lines (1298 loc) · 49.9 KB
/
jetpack-carousel.js
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/* jshint sub: true, onevar: false, multistr: true, devel: true, smarttabs: true */
/* global jetpackCarouselStrings, DocumentTouch */
jQuery(document).ready(function($) {
// gallery faded layer and container elements
var overlay, comments, gallery, container, nextButton, previousButton, info, transitionBegin,
caption, resizeTimeout, photo_info, close_hint, commentInterval, lastSelectedSlide,
screenPadding = 110, originalOverflow = $('body').css('overflow'), originalHOverflow = $('html').css('overflow'), proportion = 85,
last_known_location_hash = '', imageMeta, titleAndDescription, commentForm, leftColWrapper, scrollPos;
if ( window.innerWidth <= 760 ) {
screenPadding = Math.round( ( window.innerWidth / 760 ) * 110 );
if ( screenPadding < 40 && ( ( 'ontouchstart' in window ) || window.DocumentTouch && document instanceof DocumentTouch ) ) {
screenPadding = 0;
}
}
// Adding a polyfill for browsers that do not have Date.now
if ( 'undefined' === typeof Date.now ) {
Date.now = function now() {
return new Date().getTime();
};
}
var keyListener = function(e){
switch(e.which){
case 38: // up
e.preventDefault();
container.scrollTop(container.scrollTop() - 100);
break;
case 40: // down
e.preventDefault();
container.scrollTop(container.scrollTop() + 100);
break;
case 39: // right
e.preventDefault();
gallery.jp_carousel('clearCommentTextAreaValue');
gallery.jp_carousel('next');
break;
case 37: // left
case 8: // backspace
e.preventDefault();
gallery.jp_carousel('clearCommentTextAreaValue');
gallery.jp_carousel('previous');
break;
case 27: // escape
e.preventDefault();
gallery.jp_carousel('clearCommentTextAreaValue');
container.jp_carousel('close');
break;
default:
// making jslint happy
break;
}
};
var resizeListener = function(/*e*/){
clearTimeout(resizeTimeout);
resizeTimeout = setTimeout(function(){
gallery
.jp_carousel('slides')
.jp_carousel('fitSlide', true);
gallery.jp_carousel('updateSlidePositions', true);
gallery.jp_carousel('fitMeta', true);
}, 200);
};
var prepareGallery = function( /*dataCarouselExtra*/ ){
if (!overlay) {
overlay = $('<div></div>')
.addClass('jp-carousel-overlay')
.css({
'position' : 'absolute',
'top' : 0,
'right' : 0,
'bottom' : 0,
'left' : 0
});
var buttons = '<a class="jp-carousel-commentlink" href="#">' + jetpackCarouselStrings.comment + '</a>';
if ( 1 === Number( jetpackCarouselStrings.is_logged_in ) ) {
}
buttons = $('<div class="jp-carousel-buttons">' + buttons + '</div>');
caption = $('<h2 itemprop="caption description"></h2>');
photo_info = $('<div class="jp-carousel-photo-info"></div>').append(caption);
imageMeta = $('<div></div>')
.addClass('jp-carousel-image-meta')
.css({
'float' : 'right',
'margin-top' : '20px',
'width' : '250px'
});
imageMeta
.append( buttons )
.append( '<ul class=\'jp-carousel-image-exif\' style=\'display:none;\'></ul>' )
.append( '<a class=\'jp-carousel-image-download\' style=\'display:none;\'></a>' )
.append( '<div class=\'jp-carousel-image-map\' style=\'display:none;\'></div>' );
titleAndDescription = $('<div></div>')
.addClass('jp-carousel-titleanddesc')
.css({
'width' : '100%',
'margin-top' : imageMeta.css('margin-top')
});
var commentFormMarkup = '<div id="jp-carousel-comment-form-container">';
if ( jetpackCarouselStrings.local_comments_commenting_as && jetpackCarouselStrings.local_comments_commenting_as.length ) {
// Comments not enabled, fallback to local comments
if ( 1 !== Number( jetpackCarouselStrings.is_logged_in ) && 1 === Number( jetpackCarouselStrings.comment_registration ) ) {
commentFormMarkup += '<div id="jp-carousel-comment-form-commenting-as">' + jetpackCarouselStrings.local_comments_commenting_as + '</div>';
} else {
commentFormMarkup += '<form id="jp-carousel-comment-form">';
commentFormMarkup += '<textarea name="comment" class="jp-carousel-comment-form-field jp-carousel-comment-form-textarea" id="jp-carousel-comment-form-comment-field" placeholder="' + jetpackCarouselStrings.write_comment + '"></textarea>';
commentFormMarkup += '<div id="jp-carousel-comment-form-submit-and-info-wrapper">';
commentFormMarkup += '<div id="jp-carousel-comment-form-commenting-as">' + jetpackCarouselStrings.local_comments_commenting_as + '</div>';
commentFormMarkup += '<input type="submit" name="submit" class="jp-carousel-comment-form-button" id="jp-carousel-comment-form-button-submit" value="'+jetpackCarouselStrings.post_comment+'" />';
commentFormMarkup += '<span id="jp-carousel-comment-form-spinner"> </span>';
commentFormMarkup += '<div id="jp-carousel-comment-post-results"></div>';
commentFormMarkup += '</div>';
commentFormMarkup += '</form>';
}
}
commentFormMarkup += '</div>';
commentForm = $(commentFormMarkup)
.css({
'width' : '100%',
'margin-top' : '20px',
'color' : '#999'
});
comments = $('<div></div>')
.addClass('jp-carousel-comments')
.css({
'width' : '100%',
'bottom' : '10px',
'margin-top' : '20px'
});
var commentsLoading = $('<div id="jp-carousel-comments-loading"><span>'+jetpackCarouselStrings.loading_comments+'</span></div>')
.css({
'width' : '100%',
'bottom' : '10px',
'margin-top' : '20px'
});
var leftWidth = ( $(window).width() - ( screenPadding * 2 ) ) - (imageMeta.width() + 40);
leftWidth += 'px';
leftColWrapper = $('<div></div>')
.addClass('jp-carousel-left-column-wrapper')
.css({
'width' : Math.floor( leftWidth )
})
.append(titleAndDescription)
.append(commentForm)
.append(comments)
.append(commentsLoading);
var fadeaway = $('<div></div>')
.addClass('jp-carousel-fadeaway');
info = $('<div></div>')
.addClass('jp-carousel-info')
.css({
'top' : Math.floor( ($(window).height() / 100) * proportion ),
'left' : screenPadding,
'right' : screenPadding
})
.append(photo_info)
.append(imageMeta);
if ( window.innerWidth <= 760 ) {
photo_info.remove().insertAfter( titleAndDescription );
info.prepend( leftColWrapper );
}
else {
info.append( leftColWrapper );
}
var targetBottomPos = ( $(window).height() - parseInt( info.css('top'), 10 ) ) + 'px';
nextButton = $('<div><span></span></div>')
.addClass('jp-carousel-next-button')
.css({
'right' : '15px'
});
previousButton = $('<div><span></span></div>')
.addClass('jp-carousel-previous-button')
.css({
'left' : 0
});
nextButton.add( previousButton ).css( {
'position' : 'fixed',
'top' : '40px',
'bottom' : targetBottomPos,
'width' : screenPadding
} );
gallery = $('<div></div>')
.addClass('jp-carousel')
.css({
'position' : 'absolute',
'top' : 0,
'bottom' : targetBottomPos,
'left' : 0,
'right' : 0
});
close_hint = $('<div class="jp-carousel-close-hint"><span>×</span></div>')
.css({
position : 'fixed'
});
container = $('<div></div>')
.addClass('jp-carousel-wrap')
.addClass( 'jp-carousel-transitions' );
if ( 'white' === jetpackCarouselStrings.background_color ) {
container.addClass('jp-carousel-light');
}
container.attr('itemscope', '');
container.attr('itemtype', 'http://schema.org/ImageGallery');
container.css({
'position' : 'fixed',
'top' : 0,
'right' : 0,
'bottom' : 0,
'left' : 0,
'z-index' : 2147483647,
'overflow-x' : 'hidden',
'overflow-y' : 'auto',
'direction' : 'ltr'
})
.hide()
.append(overlay)
.append(gallery)
.append(fadeaway)
.append(info)
.append(nextButton)
.append(previousButton)
.append(close_hint)
.appendTo($('body'))
.click(function(e){
var target = $(e.target), wrap = target.parents('div.jp-carousel-wrap'), data = wrap.data('carousel-extra'),
slide = wrap.find('div.selected'), attachment_id = slide.data('attachment-id');
data = data || [];
if ( target.is(gallery) || target.parents().add(target).is(close_hint) ) {
container.jp_carousel('close');
} else if ( target.hasClass('jp-carousel-commentlink') ) {
e.preventDefault();
e.stopPropagation();
$(window).unbind('keydown', keyListener);
container.animate({scrollTop: parseInt(info.position()['top'], 10)}, 'fast');
$('#jp-carousel-comment-form-submit-and-info-wrapper').slideDown('fast');
$('#jp-carousel-comment-form-comment-field').focus();
} else if ( target.hasClass('jp-carousel-comment-login') ) {
var url = jetpackCarouselStrings.login_url + '%23jp-carousel-' + attachment_id;
window.location.href = url;
} else if ( target.parents('#jp-carousel-comment-form-container').length ) {
var textarea = $('#jp-carousel-comment-form-comment-field')
.blur(function(){
$(window).bind('keydown', keyListener);
})
.focus(function(){
$(window).unbind('keydown', keyListener);
});
var emailField = $('#jp-carousel-comment-form-email-field')
.blur(function(){
$(window).bind('keydown', keyListener);
})
.focus(function(){
$(window).unbind('keydown', keyListener);
});
var authorField = $('#jp-carousel-comment-form-author-field')
.blur(function(){
$(window).bind('keydown', keyListener);
})
.focus(function(){
$(window).unbind('keydown', keyListener);
});
var urlField = $('#jp-carousel-comment-form-url-field')
.blur(function(){
$(window).bind('keydown', keyListener);
})
.focus(function(){
$(window).unbind('keydown', keyListener);
});
if ( textarea && textarea.attr('id') === target.attr('id')) {
// For first page load
$(window).unbind('keydown', keyListener);
$('#jp-carousel-comment-form-submit-and-info-wrapper').slideDown('fast');
} else if ( target.is( 'input[type="submit"]' ) ) {
e.preventDefault();
e.stopPropagation();
$('#jp-carousel-comment-form-spinner').spin('small', 'white');
var ajaxData = {
action: 'post_attachment_comment',
nonce: jetpackCarouselStrings.nonce,
blog_id: data['blog_id'],
id: attachment_id,
comment: textarea.val()
};
if ( ! ajaxData['comment'].length ) {
gallery.jp_carousel('postCommentError', {'field': 'jp-carousel-comment-form-comment-field', 'error': jetpackCarouselStrings.no_comment_text});
return;
}
if ( 1 !== Number( jetpackCarouselStrings.is_logged_in ) ) {
ajaxData['email'] = emailField.val();
ajaxData['author'] = authorField.val();
ajaxData['url'] = urlField.val();
if ( 1 === Number( jetpackCarouselStrings.require_name_email ) ) {
if ( ! ajaxData['email'].length || ! ajaxData['email'].match('@') ) {
gallery.jp_carousel('postCommentError', {'field': 'jp-carousel-comment-form-email-field', 'error': jetpackCarouselStrings.no_comment_email});
return;
} else if ( ! ajaxData['author'].length ) {
gallery.jp_carousel('postCommentError', {'field': 'jp-carousel-comment-form-author-field', 'error': jetpackCarouselStrings.no_comment_author});
return;
}
}
}
$.ajax({
type: 'POST',
url: jetpackCarouselStrings.ajaxurl,
data: ajaxData,
dataType: 'json',
success: function(response/*, status, xhr*/) {
if ( 'approved' === response.comment_status ) {
$('#jp-carousel-comment-post-results').slideUp('fast').html('<span class="jp-carousel-comment-post-success">' + jetpackCarouselStrings.comment_approved + '</span>').slideDown('fast');
} else if ( 'unapproved' === response.comment_status ) {
$('#jp-carousel-comment-post-results').slideUp('fast').html('<span class="jp-carousel-comment-post-success">' + jetpackCarouselStrings.comment_unapproved + '</span>').slideDown('fast');
} else {
// 'deleted', 'spam', false
$('#jp-carousel-comment-post-results').slideUp('fast').html('<span class="jp-carousel-comment-post-error">' + jetpackCarouselStrings.comment_post_error + '</span>').slideDown('fast');
}
gallery.jp_carousel('clearCommentTextAreaValue');
gallery.jp_carousel('getComments', {attachment_id: attachment_id, offset: 0, clear: true});
$('#jp-carousel-comment-form-button-submit').val(jetpackCarouselStrings.post_comment);
$('#jp-carousel-comment-form-spinner').spin(false);
},
error: function(/*xhr, status, error*/) {
// TODO: Add error handling and display here
gallery.jp_carousel('postCommentError', {'field': 'jp-carousel-comment-form-comment-field', 'error': jetpackCarouselStrings.comment_post_error});
return;
}
});
}
} else if ( ! target.parents( '.jp-carousel-info' ).length ) {
container.jp_carousel('next');
}
})
.bind('jp_carousel.afterOpen', function(){
$(window).bind('keydown', keyListener);
$(window).bind('resize', resizeListener);
gallery.opened = true;
resizeListener();
})
.bind('jp_carousel.beforeClose', function(){
var scroll = $(window).scrollTop();
$(window).unbind('keydown', keyListener);
$(window).unbind('resize', resizeListener);
$(window).scrollTop(scroll);
})
.bind('jp_carousel.afterClose', function(){
if ( history.pushState ) {
history.pushState('', document.title, window.location.pathname + window.location.search);
} else {
window.location.hash = '';
}
last_known_location_hash = '';
gallery.opened = false;
})
.on( 'transitionend.jp-carousel ', '.jp-carousel-slide', function ( e ) {
// If the movement transitions take more than twice the allotted time, disable them.
// There is some wiggle room in the 2x, since some of that time is taken up in
// JavaScript, setting up the transition and calling the events.
if ( 'transform' === e.originalEvent.propertyName ) {
var transitionMultiplier = ( ( Date.now() - transitionBegin ) / 1000 ) / e.originalEvent.elapsedTime;
container.off( 'transitionend.jp-carousel' );
if ( transitionMultiplier >= 2 ) {
$( '.jp-carousel-transitions' ).removeClass( 'jp-carousel-transitions' );
}
}
} );
$( '.jp-carousel-wrap' ).touchwipe( {
wipeLeft : function ( e ) {
e.preventDefault();
gallery.jp_carousel( 'next' );
},
wipeRight : function ( e ) {
e.preventDefault();
gallery.jp_carousel( 'previous' );
},
preventDefaultEvents : false
} );
nextButton.add(previousButton).click(function(e){
e.preventDefault();
e.stopPropagation();
if ( nextButton.is(this) ) {
gallery.jp_carousel('next');
} else {
gallery.jp_carousel('previous');
}
});
}
};
var methods = {
testForData: function(gallery) {
gallery = $( gallery ); // make sure we have it as a jQuery object.
return !( ! gallery.length || ! gallery.data( 'carousel-extra' ) );
},
testIfOpened: function() {
return !!( 'undefined' !== typeof(gallery) && 'undefined' !== typeof(gallery.opened) && gallery.opened );
},
openOrSelectSlide: function( index ) {
// The `open` method triggers an asynchronous effect, so we will get an
// error if we try to use `open` then `selectSlideAtIndex` immediately
// after it. We can only use `selectSlideAtIndex` if the carousel is
// already open.
if ( ! $( this ).jp_carousel( 'testIfOpened' ) ) {
// The `open` method selects the correct slide during the
// initialization.
$( this ).jp_carousel( 'open', { start_index: index } );
} else {
gallery.jp_carousel( 'selectSlideAtIndex', index );
}
},
open: function(options) {
var settings = {
'items_selector' : '.gallery-item [data-attachment-id], .tiled-gallery-item [data-attachment-id]',
'start_index': 0
},
data = $(this).data('carousel-extra');
if ( !data ) {
return; // don't run if the default gallery functions weren't used
}
prepareGallery( data );
if ( gallery.jp_carousel( 'testIfOpened' ) ) {
return; // don't open if already opened
}
// make sure to stop the page from scrolling behind the carousel overlay, so we don't trigger
// infiniscroll for it when enabled (Reader, theme infiniscroll, etc).
originalOverflow = $('body').css('overflow');
$('body').css('overflow', 'hidden');
// prevent html from overflowing on some of the new themes.
originalHOverflow = $('html').css('overflow');
$('html').css('overflow', 'hidden');
scrollPos = $( window ).scrollTop();
container.data('carousel-extra', data);
return this.each(function() {
// If options exist, lets merge them
// with our default settings
var $this = $(this);
if ( options ) {
$.extend( settings, options );
}
if ( -1 === settings.start_index ) {
settings.start_index = 0; //-1 returned if can't find index, so start from beginning
}
container.trigger('jp_carousel.beforeOpen').fadeIn('fast',function(){
container.trigger('jp_carousel.afterOpen');
gallery
.jp_carousel('initSlides', $this.find(settings.items_selector), settings.start_index)
.jp_carousel('selectSlideAtIndex', settings.start_index);
});
gallery.html('');
});
},
selectSlideAtIndex : function(index){
var slides = this.jp_carousel('slides'), selected = slides.eq(index);
if ( 0 === selected.length ) {
selected = slides.eq(0);
}
gallery.jp_carousel('selectSlide', selected, false);
return this;
},
close : function(){
// make sure to let the page scroll again
$('body').css('overflow', originalOverflow);
$('html').css('overflow', originalHOverflow);
return container
.trigger('jp_carousel.beforeClose')
.fadeOut('fast', function(){
container.trigger('jp_carousel.afterClose');
$( window ).scrollTop( scrollPos );
});
},
next : function(){
var slide = gallery.jp_carousel( 'nextSlide' );
container.animate({scrollTop:0}, 'fast');
if ( slide ) {
this.jp_carousel('selectSlide', slide);
}
},
previous : function(){
var slide = gallery.jp_carousel( 'prevSlide' );
container.animate({scrollTop:0}, 'fast');
if ( slide ) {
this.jp_carousel('selectSlide', slide);
}
},
selectedSlide : function(){
return this.find('.selected');
},
setSlidePosition : function(x) {
transitionBegin = Date.now();
return this.css({
'-webkit-transform':'translate3d(' + x + 'px,0,0)',
'-moz-transform':'translate3d(' + x + 'px,0,0)',
'-ms-transform':'translate(' + x + 'px,0)',
'-o-transform':'translate(' + x + 'px,0)',
'transform':'translate3d(' + x + 'px,0,0)'
});
},
updateSlidePositions : function(animate) {
var current = this.jp_carousel( 'selectedSlide' ),
galleryWidth = gallery.width(),
currentWidth = current.width(),
previous = gallery.jp_carousel( 'prevSlide' ),
next = gallery.jp_carousel( 'nextSlide' ),
previousPrevious = previous.prev(),
nextNext = next.next(),
left = Math.floor( ( galleryWidth - currentWidth ) * 0.5 );
current.jp_carousel( 'setSlidePosition', left ).show();
// minimum width
gallery.jp_carousel( 'fitInfo', animate );
// prep the slides
var direction = lastSelectedSlide.is( current.prevAll() ) ? 1 : -1;
// Since we preload the `previousPrevious` and `nextNext` slides, we need
// to make sure they technically visible in the DOM, but invisible to the
// user. To hide them from the user, we position them outside the edges
// of the window.
//
// This section of code only applies when there are more than three
// slides. Otherwise, the `previousPrevious` and `nextNext` slides will
// overlap with the `previous` and `next` slides which must be visible
// regardless.
if ( 1 === direction ) {
if ( ! nextNext.is( previous ) ) {
nextNext.jp_carousel( 'setSlidePosition', galleryWidth + next.width() ).show();
}
if ( ! previousPrevious.is( next ) ) {
previousPrevious.jp_carousel( 'setSlidePosition', -previousPrevious.width() - currentWidth ).show();
}
} else {
if ( ! nextNext.is( previous ) ) {
nextNext.jp_carousel( 'setSlidePosition', galleryWidth + currentWidth ).show();
}
}
previous.jp_carousel( 'setSlidePosition', Math.floor( -previous.width() + ( screenPadding * 0.75 ) ) ).show();
next.jp_carousel( 'setSlidePosition', Math.ceil( galleryWidth - ( screenPadding * 0.75 ) ) ).show();
},
selectSlide : function(slide, animate){
lastSelectedSlide = this.find( '.selected' ).removeClass( 'selected' );
var slides = gallery.jp_carousel( 'slides' ).css({ 'position': 'fixed' }),
current = $( slide ).addClass( 'selected' ).css({ 'position': 'relative' }),
attachmentId = current.data( 'attachment-id' ),
previous = gallery.jp_carousel( 'prevSlide' ),
next = gallery.jp_carousel( 'nextSlide' ),
previousPrevious = previous.prev(),
nextNext = next.next(),
animated,
captionHtml;
// center the main image
gallery.jp_carousel( 'loadFullImage', current );
caption.hide();
if ( next.length === 0 && slides.length <= 2 ) {
$( '.jp-carousel-next-button' ).hide();
} else {
$( '.jp-carousel-next-button' ).show();
}
if ( previous.length === 0 && slides.length <= 2 ) {
$( '.jp-carousel-previous-button' ).hide();
} else {
$( '.jp-carousel-previous-button' ).show();
}
animated = current
.add( previous )
.add( previousPrevious )
.add( next )
.add( nextNext )
.jp_carousel( 'loadSlide' );
// slide the whole view to the x we want
slides.not( animated ).hide();
gallery.jp_carousel( 'updateSlidePositions', animate );
container.trigger( 'jp_carousel.selectSlide', [current] );
gallery.jp_carousel( 'getTitleDesc', {
title: current.data( 'title' ),
desc: current.data( 'desc' )
});
var imageMeta = current.data( 'image-meta' );
gallery.jp_carousel( 'updateExif', imageMeta );
gallery.jp_carousel( 'updateFullSizeLink', current );
gallery.jp_carousel( 'updateMap', imageMeta );
gallery.jp_carousel( 'testCommentsOpened', current.data( 'comments-opened' ) );
gallery.jp_carousel( 'getComments', {
'attachment_id': attachmentId,
'offset': 0,
'clear': true
});
$( '#jp-carousel-comment-post-results' ).slideUp();
// $('<div />').text(sometext).html() is a trick to go to HTML to plain
// text (including HTML entities decode, etc)
if ( current.data( 'caption' ) ) {
captionHtml = $( '<div />' ).text( current.data( 'caption' ) ).html();
if ( captionHtml === $( '<div />' ).text( current.data( 'title' ) ).html() ) {
$( '.jp-carousel-titleanddesc-title' ).fadeOut( 'fast' ).empty();
}
if ( captionHtml === $( '<div />' ).text( current.data( 'desc' ) ).html() ) {
$( '.jp-carousel-titleanddesc-desc' ).fadeOut( 'fast' ).empty();
}
caption.html( current.data( 'caption' ) ).fadeIn( 'slow' );
} else {
caption.fadeOut( 'fast' ).empty();
}
// Record pageview in WP Stats, for each new image loaded full-screen.
if ( jetpackCarouselStrings.stats ) {
new Image().src = document.location.protocol +
'//pixel.wp.com/g.gif?' +
jetpackCarouselStrings.stats +
'&post=' + encodeURIComponent( attachmentId ) +
'&rand=' + Math.random();
}
// Load the images for the next and previous slides.
$( next ).add( previous ).each( function() {
gallery.jp_carousel( 'loadFullImage', $( this ) );
});
window.location.hash = last_known_location_hash = '#jp-carousel-' + attachmentId;
},
slides : function(){
return this.find('.jp-carousel-slide');
},
slideDimensions : function(){
return {
width: $(window).width() - (screenPadding * 2),
height: Math.floor( $(window).height() / 100 * proportion - 60 )
};
},
loadSlide : function() {
return this.each(function(){
var slide = $(this);
slide.find('img')
.one('load', function(){
// set the width/height of the image if it's too big
slide
.jp_carousel('fitSlide',false);
});
});
},
bestFit : function(){
var max = gallery.jp_carousel('slideDimensions'),
orig = this.jp_carousel('originalDimensions'),
orig_ratio = orig.width / orig.height,
w_ratio = 1,
h_ratio = 1,
width, height;
if ( orig.width > max.width ) {
w_ratio = max.width / orig.width;
}
if ( orig.height > max.height ) {
h_ratio = max.height / orig.height;
}
if ( w_ratio < h_ratio ) {
width = max.width;
height = Math.floor( width / orig_ratio );
} else if ( h_ratio < w_ratio ) {
height = max.height;
width = Math.floor( height * orig_ratio );
} else {
width = orig.width;
height = orig.height;
}
return {
width: width,
height: height
};
},
fitInfo : function(/*animated*/){
var current = this.jp_carousel('selectedSlide'),
size = current.jp_carousel('bestFit');
photo_info.css({
'left' : Math.floor( (info.width() - size.width) * 0.5 ),
'width' : Math.floor( size.width )
});
return this;
},
fitMeta : function(animated){
var newInfoTop = { top: Math.floor( $(window).height() / 100 * proportion + 5 ) + 'px' };
var newLeftWidth = { width: ( info.width() - (imageMeta.width() + 80) ) + 'px' };
if (animated) {
info.animate(newInfoTop);
leftColWrapper.animate(newLeftWidth);
} else {
info.animate(newInfoTop);
leftColWrapper.css(newLeftWidth);
}
},
fitSlide : function(/*animated*/){
return this.each(function(){
var $this = $(this),
dimensions = $this.jp_carousel('bestFit'),
method = 'css',
max = gallery.jp_carousel('slideDimensions');
dimensions.left = 0;
dimensions.top = Math.floor( (max.height - dimensions.height) * 0.5 ) + 40;
$this[method](dimensions);
});
},
texturize : function(text) {
text = '' + text; // make sure we get a string. Title "1" came in as int 1, for example, which did not support .replace().
text = text.replace(/'/g, '’').replace(/'/g, '’').replace(/[\u2019]/g, '’');
text = text.replace(/"/g, '”').replace(/"/g, '”').replace(/"/g, '”').replace(/[\u201D]/g, '”');
text = text.replace(/([\w]+)=&#[\d]+;(.+?)&#[\d]+;/g, '$1="$2"'); // untexturize allowed HTML tags params double-quotes
return $.trim(text);
},
initSlides : function(items, start_index){
if ( items.length < 2 ) {
$( '.jp-carousel-next-button, .jp-carousel-previous-button' ).hide();
} else {
$( '.jp-carousel-next-button, .jp-carousel-previous-button' ).show();
}
// Calculate the new src.
items.each(function(/*i*/){
var src_item = $(this),
orig_size = src_item.data('orig-size') || '',
max = gallery.jp_carousel('slideDimensions'),
parts = orig_size.split(','),
medium_file = src_item.data('medium-file') || '',
large_file = src_item.data('large-file') || '',
src;
orig_size = {width: parseInt(parts[0], 10), height: parseInt(parts[1], 10)};
src = src_item.data('orig-file');
src = gallery.jp_carousel('selectBestImageSize', {
orig_file : src,
orig_width : orig_size.width,
orig_height : orig_size.height,
max_width : max.width,
max_height : max.height,
medium_file : medium_file,
large_file : large_file
});
// Set the final src
$(this).data( 'gallery-src', src );
});
// If the start_index is not 0 then preload the clicked image first.
if ( 0 !== start_index ) {
$('<img/>')[0].src = $(items[start_index]).data('gallery-src');
}
var useInPageThumbnails = items.first().closest( '.tiled-gallery.type-rectangular' ).length > 0;
// create the 'slide'
items.each(function(i){
var src_item = $(this),
attachment_id = src_item.data('attachment-id') || 0,
comments_opened = src_item.data('comments-opened') || 0,
image_meta = src_item.data('image-meta') || {},
orig_size = src_item.data('orig-size') || '',
thumb_size = { width : src_item[0].naturalWidth, height : src_item[0].naturalHeight },
title = src_item.data('image-title') || '',
description = src_item.data('image-description') || '',
caption = src_item.parents('.gallery-item').find('.gallery-caption').html() || '',
src = src_item.data('gallery-src') || '',
medium_file = src_item.data('medium-file') || '',
large_file = src_item.data('large-file') || '',
orig_file = src_item.data('orig-file') || '';
var tiledCaption = src_item.parents('div.tiled-gallery-item').find('div.tiled-gallery-caption').html();
if ( tiledCaption ) {
caption = tiledCaption;
}
if ( attachment_id && orig_size.length ) {
title = gallery.jp_carousel('texturize', title);
description = gallery.jp_carousel('texturize', description);
caption = gallery.jp_carousel('texturize', caption);
// Initially, the image is a 1x1 transparent gif. The preview is shown as a background image on the slide itself.
var image = $( '<img/>' )
.attr( 'src', 'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7' )
.css( 'width', '100%' )
.css( 'height', '100%' );
var slide = $('<div class="jp-carousel-slide" itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject"></div>')
.hide()
.css({
//'position' : 'fixed',
'left' : i < start_index ? -1000 : gallery.width()
})
.append( image )
.appendTo(gallery)
.data('src', src )
.data('title', title)
.data('desc', description)
.data('caption', caption)
.data('attachment-id', attachment_id)
.data('permalink', src_item.parents('a').attr('href'))
.data('orig-size', orig_size)
.data('comments-opened', comments_opened)
.data('image-meta', image_meta)
.data('medium-file', medium_file)
.data('large-file', large_file)
.data('orig-file', orig_file)
.data('thumb-size', thumb_size)
;
if ( useInPageThumbnails ) {
// Use the image already loaded in the gallery as a preview.
slide
.data( 'preview-image', src_item.attr( 'src' ) )
.css( {
'background-image' : 'url("' + src_item.attr( 'src' ) + '")',
'background-size' : '100% 100%',
'background-position' : 'center center'
} );
}
slide.jp_carousel( 'fitSlide', false );
}
});
return this;
},
selectBestImageSize: function(args) {
if ( 'object' !== typeof args ) {
args = {};
}
if ( 'undefined' === typeof args.orig_file ) {
return '';
}
if ( 'undefined' === typeof args.orig_width || 'undefined' === typeof args.max_width ) {
return args.orig_file;
}
if ( 'undefined' === typeof args.medium_file || 'undefined' === typeof args.large_file ) {
return args.orig_file;
}
// Check if the image is being served by Photon (using a regular expression on the hostname).
var imageLinkParser = document.createElement( 'a' );
imageLinkParser.href = args.large_file;
var isPhotonUrl = ( imageLinkParser.hostname.match( /^i[\d]{1}.wp.com$/i ) != null );
var medium_size_parts = gallery.jp_carousel( 'getImageSizeParts', args.medium_file, args.orig_width, isPhotonUrl );
var large_size_parts = gallery.jp_carousel( 'getImageSizeParts', args.large_file, args.orig_width, isPhotonUrl );
var large_width = parseInt( large_size_parts[0], 10 ),
large_height = parseInt( large_size_parts[1], 10 ),
medium_width = parseInt( medium_size_parts[0], 10 ),
medium_height = parseInt( medium_size_parts[1], 10 );
// Give devices with a higher devicePixelRatio higher-res images (Retina display = 2, Android phones = 1.5, etc)
if ( 'undefined' !== typeof window.devicePixelRatio && window.devicePixelRatio > 1 ) {
args.max_width = args.max_width * window.devicePixelRatio;
args.max_height = args.max_height * window.devicePixelRatio;
}
if ( large_width >= args.max_width || large_height >= args.max_height ) {
return args.large_file;
}
if ( medium_width >= args.max_width || medium_height >= args.max_height ) {
return args.medium_file;
}
if ( isPhotonUrl ) {
// args.orig_file doesn't point to a Photon url, so in this case we use args.large_file
// to return the photon url of the original image.
var largeFileIndex = args.large_file.lastIndexOf( '?' );
var origPhotonUrl = args.large_file;
if ( -1 !== largeFileIndex ) {
origPhotonUrl = args.large_file.substring( 0, largeFileIndex );
}
return origPhotonUrl;
}
return args.orig_file;
},
getImageSizeParts: function( file, orig_width, isPhotonUrl ) {
var size = isPhotonUrl ?
file.replace( /.*=([\d]+%2C[\d]+).*$/, '$1' ) :
file.replace( /.*-([\d]+x[\d]+)\..+$/, '$1' );
var size_parts = ( size !== file ) ?
( isPhotonUrl ? size.split( '%2C' ) : size.split( 'x' ) ) :
[ orig_width, 0 ];
// If one of the dimensions is set to 9999, then the actual value of that dimension can't be retrieved from the url.
// In that case, we set the value to 0.
if ( '9999' === size_parts[0] ) {
size_parts[0] = '0';
}