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-/*!
- * Justified Gallery - v3.2.0
- * http://miromannino.com/projects/justified-gallery/
- * Copyright (c) 2014 Miro Mannino
- * Licensed under the MIT license.
- */
-(function($) {
-
- /* Events
- jg.complete : called when all the gallery has been created
- jg.resize : called when the gallery has been resized
- */
-
- $.fn.justifiedGallery = function (arg) {
-
- // Default options
- var defaults = {
- sizeRangeSuffixes : {
- 'lt100': '_t',
- 'lt240': '_m',
- 'lt320': '_n',
- 'lt500': '',
- 'lt640': '_z',
- 'lt1024': '_b'
- },
- rowHeight : 120,
- maxRowHeight : 0, //negative value = no limits, 0 = 1.5 * rowHeight
- margins : 1,
- lastRow : 'nojustify', // or can be 'justify' or 'hide'
- justifyThreshold: 0.75, /* if row width / available space > 0.75 it will be always justified
- (i.e. lastRow setting is not considered) */
- fixedHeight : false,
- captions : true,
- cssAnimation: false,
- imagesAnimationDuration : 300, //ignored with css animations
- captionSettings : { //ignored with css animations
- animationDuration : 500,
- visibleOpacity : 0.7,
- nonVisibleOpacity : 0.0
- },
- rel : null, //rewrite the rel of each analyzed links
- target : null, //rewrite the target of all links
- extension : /\.[^.]+$/,
- refreshTime : 250,
- randomize : false
- };
-
- function getSuffix(width, height, context) {
- var longestSide;
- longestSide = (width > height) ? width : height;
- if (longestSide <= 100) {
- return context.settings.sizeRangeSuffixes.lt100;
- } else if (longestSide <= 240) {
- return context.settings.sizeRangeSuffixes.lt240;
- } else if (longestSide <= 320) {
- return context.settings.sizeRangeSuffixes.lt320;
- } else if (longestSide <= 500) {
- return context.settings.sizeRangeSuffixes.lt500;
- } else if (longestSide <= 640) {
- return context.settings.sizeRangeSuffixes.lt640;
- } else {
- return context.settings.sizeRangeSuffixes.lt1024;
- }
- }
-
- function onEntryMouseEnterForCaption (ev) {
- var $caption = $(ev.currentTarget).find('.caption');
- if (ev.data.settings.cssAnimation) {
- $caption.addClass('caption-visible').removeClass('caption-hidden');
- } else {
- $caption.stop().fadeTo(ev.data.settings.captionSettings.animationDuration, ev.data.settings.captionSettings.visibleOpacity);
- }
- }
-
- function onEntryMouseLeaveForCaption (ev) {
- var $caption = $(ev.currentTarget).find('.caption');
- if (ev.data.settings.cssAnimation) {
- $caption.removeClass('caption-visible').removeClass('caption-hidden');
- } else {
- $caption.stop().fadeTo(ev.data.settings.captionSettings.animationDuration, ev.data.settings.captionSettings.nonVisibleOpacity);
- }
- }
-
- function displayEntry($entry, x, y, imgWidth, imgHeight, rowHeight, context) {
- var $image = $entry.find('img');
- $image.css('width', imgWidth);
- $image.css('height', imgHeight);
- $image.css('margin-left', - imgWidth / 2);
- $image.css('margin-top', - imgHeight / 2);
- $entry.width(imgWidth);
- $entry.height(rowHeight);
- $entry.css('top', y);
- $entry.css('left', x);
-
- //DEBUG// console.log('displayEntry: $image.width() = ' + $image.width() + ' $image.height() = ' + $image.height());
-
- // Image reloading for an high quality of thumbnails
- var imageSrc = $image.attr('src');
- var newImageSrc = imageSrc.replace(context.settings.extension, '').replace(context.usedSizeRangeRegExp, '') +
- getSuffix(imgWidth, imgHeight, context) +
- imageSrc.match(context.settings.extension)[0];
-
- $image.one('error', function () {
- //DEBUG// console.log('revert the original image');
- $image.attr('src', $image.data('jg.originalSrc')); //revert to the original thumbnail, we got it.
- });
-
- var loadNewImage = function () {
- if (imageSrc !== newImageSrc) { //load the new image after the fadeIn
- $image.attr('src', newImageSrc);
- }
- };
-
- if (context.settings.cssAnimation) {
- $entry.addClass('entry-visible');
- loadNewImage();
- } else {
- $entry.stop().fadeTo(context.settings.imagesAnimationDuration, 1.0, loadNewImage);
- }
-
- // Captions ------------------------------
- var captionMouseEvents = $entry.data('jg.captionMouseEvents');
- if (context.settings.captions === true) {
- var $imgCaption = $entry.find('.caption');
- if ($imgCaption.length === 0) { // Create it if it doesn't exists
- var caption = $image.attr('alt');
- if (typeof caption === 'undefined') caption = $entry.attr('title');
- if (typeof caption !== 'undefined') { // Create only we found something
- $imgCaption = $('<div class="caption">' + caption + '</div>');
- $entry.append($imgCaption);
- }
- }
-
- // Create events (we check again the $imgCaption because it can be still inexistent)
- if ($imgCaption.length !== 0) {
- if (!context.settings.cssAnimation) {
- $imgCaption.stop().fadeTo(context.settings.imagesAnimationDuration, context.settings.captionSettings.nonVisibleOpacity);
- }
- if (typeof captionMouseEvents === 'undefined') {
- captionMouseEvents = {
- mouseenter: onEntryMouseEnterForCaption,
- mouseleave: onEntryMouseLeaveForCaption
- };
- $entry.on('mouseenter', undefined, context, captionMouseEvents.mouseenter);
- $entry.on('mouseleave', undefined, context, captionMouseEvents.mouseleave);
- $entry.data('jg.captionMouseEvents', captionMouseEvents);
- }
- }
- } else {
- if (typeof captionMouseEvents !== 'undefined') {
- $entry.off('mouseenter', undefined, context, captionMouseEvents.mouseenter);
- $entry.off('mouseleave', undefined, context, captionMouseEvents.mouseleave);
- $entry.removeData('jg.captionMouseEvents');
- }
- }
-
- }
-
- function prepareBuildingRow(context, isLastRow) {
- var i, $entry, $image, imgAspectRatio, newImgW, newImgH, justify = true;
- var minHeight = 0;
- var availableWidth = context.galleryWidth - ((context.buildingRow.entriesBuff.length - 1) * context.settings.margins);
- var rowHeight = availableWidth / context.buildingRow.aspectRatio;
- var justificable = context.buildingRow.width / availableWidth > context.settings.justifyThreshold;
-
- //Skip the last row if we can't justify it and the lastRow == 'hide'
- if (isLastRow && context.settings.lastRow === 'hide' && !justificable) {
- for (i = 0; i < context.buildingRow.entriesBuff.length; i++) {
- $entry = context.buildingRow.entriesBuff[i];
- if (context.settings.cssAnimation)
- $entry.removeClass('entry-visible');
- else
- $entry.stop().fadeTo(0, 0);
- }
- return -1;
- }
-
- // With lastRow = nojustify, justify if is justificable (the images will not become too big)
- if (isLastRow && context.settings.lastRow === 'nojustify' && !justificable) justify = false;
-
- for (i = 0; i < context.buildingRow.entriesBuff.length; i++) {
- $image = context.buildingRow.entriesBuff[i].find('img');
- imgAspectRatio = $image.data('jg.imgw') / $image.data('jg.imgh');
-
- if (justify) {
- newImgW = rowHeight * imgAspectRatio;
- newImgH = rowHeight;
-
- /* With fixedHeight the newImgH must be greater than rowHeight.
- In some cases here this is not satisfied (due to the justification).
- But we comment it, because is better to have a shorter but justified row instead
- to have a cropped image at the end. */
- /*if (context.settings.fixedHeight && newImgH < context.settings.rowHeight) {
- newImgW = context.settings.rowHeight * imgAspectRatio;
- newImgH = context.settings.rowHeight;
- }*/
- } else {
- newImgW = context.settings.rowHeight * imgAspectRatio;
- newImgH = context.settings.rowHeight;
- }
-
- $image.data('jg.imgw', Math.ceil(newImgW));
- $image.data('jg.imgh', Math.ceil(newImgH));
- if (i === 0 || minHeight > newImgH) minHeight = newImgH;
- }
-
- if (context.settings.fixedHeight && minHeight > context.settings.rowHeight)
- minHeight = context.settings.rowHeight;
-
- return minHeight;
- }
-
- function rewind(context) {
- context.lastAnalyzedIndex = -1;
- context.buildingRow.entriesBuff = [];
- context.buildingRow.aspectRatio = 0;
- context.buildingRow.width = 0;
- context.offY = 0;
- context.firstRowFlushed = false;
- }
-
- function flushRow(context, isLastRow) {
- var $entry, $image, minHeight, offX = 0;
-
- //DEBUG// console.log('flush (width: ' + context.buildingRow.width + ', galleryWidth: ' + context.galleryWidth + ', ' + 'isLastRow: ' + isLastRow + ')');
-
- minHeight = prepareBuildingRow(context, isLastRow);
- if (isLastRow && context.settings.lastRow === 'hide' && minHeight === -1) {
- context.buildingRow.entriesBuff = [];
- context.buildingRow.aspectRatio = 0;
- context.buildingRow.width = 0;
- return;
- }
-
- if (context.settings.maxRowHeight > 0 && context.settings.maxRowHeight < minHeight)
- minHeight = context.settings.maxRowHeight;
- else if (context.settings.maxRowHeight === 0 && (1.5 * context.settings.rowHeight) < minHeight)
- minHeight = 1.5 * context.settings.rowHeight;
-
- for (var i = 0; i < context.buildingRow.entriesBuff.length; i++) {
- $entry = context.buildingRow.entriesBuff[i];
- $image = $entry.find('img');
- displayEntry($entry, offX, context.offY, $image.data('jg.imgw'), $image.data('jg.imgh'), minHeight, context);
- offX += $image.data('jg.imgw') + context.settings.margins;
- }
-
- //Gallery Height
- context.$gallery.height(context.offY + minHeight +
- (context.spinner.active ? context.spinner.$el.innerHeight() : 0)
- );
-
- if(!isLastRow) {
- //Ready for a new row
- context.offY += minHeight + context.settings.margins;
-
- //DEBUG// console.log('minHeight: ' + minHeight + ' offY: ' + context.offY);
-
- context.buildingRow.entriesBuff = []; //clear the array creating a new one
- context.buildingRow.aspectRatio = 0;
- context.buildingRow.width = 0;
- context.firstRowFlushed = true;
- context.$gallery.trigger('jg.rowflush');
- }
- }
-
- function checkWidth(context) {
- context.checkWidthIntervalId = setInterval(function () {
- var galleryWidth = parseInt(context.$gallery.width(), 10);
- if (context.galleryWidth !== galleryWidth) {
- //DEBUG// console.log("resize. old: " + context.galleryWidth + " new: " + galleryWidth);
-
- context.galleryWidth = galleryWidth;
- rewind(context);
-
- // Restart to analyze
- startImgAnalyzer(context, true);
- }
- }, context.settings.refreshTime);
- }
-
- function startLoadingSpinnerAnimation(spinnerContext) {
- clearInterval(spinnerContext.intervalId);
- spinnerContext.intervalId = setInterval(function () {
- if (spinnerContext.phase < spinnerContext.$points.length)
- spinnerContext.$points.eq(spinnerContext.phase).fadeTo(spinnerContext.timeslot, 1);
- else
- spinnerContext.$points.eq(spinnerContext.phase - spinnerContext.$points.length).fadeTo(spinnerContext.timeslot, 0);
- spinnerContext.phase = (spinnerContext.phase + 1) % (spinnerContext.$points.length * 2);
- }, spinnerContext.timeslot);
- }
-
- function stopLoadingSpinnerAnimation(spinnerContext) {
- clearInterval(spinnerContext.intervalId);
- spinnerContext.intervalId = null;
- }
-
- function stopImgAnalyzerStarter(context) {
- context.yield.flushed = 0;
- if (context.imgAnalyzerTimeout !== null) clearTimeout(context.imgAnalyzerTimeout);
- }
-
- function startImgAnalyzer(context, isForResize) {
- stopImgAnalyzerStarter(context);
- context.imgAnalyzerTimeout = setTimeout(function () { analyzeImages(context, isForResize); }, 0.001);
- analyzeImages(context, isForResize);
- }
-
- function analyzeImages(context, isForResize) {
-
- //DEBUG//
- /*var rnd = parseInt(Math.random() * 10000, 10);
- //DEBUG// console.log('analyzeImages ' + rnd + ' start');
- //DEBUG// console.log('images status: ');
- for (var i = 0; i < context.entries.length; i++) {
- var $entry = $(context.entries[i]);
- var $image = $entry.find('img');
- //DEBUG// console.log(i + ' (alt: ' + $image.attr('alt') + 'loaded: ' + $image.data('jg.loaded') + ')');
- }*/
-
- /* The first row */
- var isLastRow;
-
- for (var i = context.lastAnalyzedIndex + 1; i < context.entries.length; i++) {
- var $entry = $(context.entries[i]);
- var $image = $entry.find('img');
-
- if ($image.data('jg.loaded') === true) {
- isLastRow = i >= context.entries.length - 1;
-
- var availableWidth = context.galleryWidth - ((context.buildingRow.entriesBuff.length - 1) * context.settings.margins);
- var imgAspectRatio = $image.data('jg.imgw') / $image.data('jg.imgh');
- if (availableWidth / (context.buildingRow.aspectRatio + imgAspectRatio) < context.settings.rowHeight) {
- flushRow(context, isLastRow);
-
- if(++context.yield.flushed >= context.yield.every) {
- //DEBUG// console.log("yield");
- startImgAnalyzer(context, isForResize);
- return;
- }
- }
-
- context.buildingRow.entriesBuff.push($entry);
- context.buildingRow.aspectRatio += imgAspectRatio;
- context.buildingRow.width += imgAspectRatio * context.settings.rowHeight;
- context.lastAnalyzedIndex = i;
-
- } else if ($image.data('jg.loaded') !== 'error') {
- return;
- }
- }
-
- // Last row flush (the row is not full)
- if (context.buildingRow.entriesBuff.length > 0) flushRow(context, isLastRow);
-
- if (context.spinner.active) {
- context.spinner.active = false;
- context.$gallery.height(context.$gallery.height() - context.spinner.$el.innerHeight());
- context.spinner.$el.detach();
- stopLoadingSpinnerAnimation(context.spinner);
- }
-
- /* Stop, if there is, the timeout to start the analyzeImages.
- This is because an image can be set loaded, and the timeout can be set,
- but this image can be analyzed yet.
- */
- stopImgAnalyzerStarter(context);
-
- //On complete callback
- if (!isForResize) context.$gallery.trigger('jg.complete'); else context.$gallery.trigger('jg.resize');
-
- //DEBUG// console.log('analyzeImages ' + rnd + ' end');
- }
-
- function checkSettings (context) {
-
- function checkSuffixesRange(range) {
- if (typeof context.settings.sizeRangeSuffixes[range] !== 'string')
- throw 'sizeRangeSuffixes.' + range + ' must be a string';
- }
-
- function checkOrConvertNumber(parent, settingName) {
- if (typeof parent[settingName] === 'string') {
- parent[settingName] = parseFloat(parent[settingName], 10);
- if (isNaN(parent[settingName])) throw 'invalid number for ' + settingName;
- } else if (typeof parent[settingName] === 'number') {
- if (isNaN(parent[settingName])) throw 'invalid number for ' + settingName;
- } else {
- throw settingName + ' must be a number';
- }
- }
-
- if (typeof context.settings.sizeRangeSuffixes !== 'object')
- throw 'sizeRangeSuffixes must be defined and must be an object';
-
- checkSuffixesRange('lt100');
- checkSuffixesRange('lt240');
- checkSuffixesRange('lt320');
- checkSuffixesRange('lt500');
- checkSuffixesRange('lt640');
- checkSuffixesRange('lt1024');
-
- checkOrConvertNumber(context.settings, 'rowHeight');
- checkOrConvertNumber(context.settings, 'maxRowHeight');
- checkOrConvertNumber(context.settings, 'margins');
-
- if (context.settings.lastRow !== 'nojustify' &&
- context.settings.lastRow !== 'justify' &&
- context.settings.lastRow !== 'hide') {
- throw 'lastRow must be "nojustify", "justify" or "hide"';
- }
-
- checkOrConvertNumber(context.settings, 'justifyThreshold');
- if (context.settings.justifyThreshold < 0 || context.settings.justifyThreshold > 1)
- throw 'justifyThreshold must be in the interval [0,1]';
- if (typeof context.settings.cssAnimation !== 'boolean') {
- throw 'cssAnimation must be a boolean';
- }
-
- checkOrConvertNumber(context.settings.captionSettings, 'animationDuration');
- checkOrConvertNumber(context.settings, 'imagesAnimationDuration');
-
- checkOrConvertNumber(context.settings.captionSettings, 'visibleOpacity');
- if (context.settings.captionSettings.visibleOpacity < 0 || context.settings.captionSettings.visibleOpacity > 1)
- throw 'captionSettings.visibleOpacity must be in the interval [0, 1]';
-
- checkOrConvertNumber(context.settings.captionSettings, 'nonVisibleOpacity');
- if (context.settings.captionSettings.visibleOpacity < 0 || context.settings.captionSettings.visibleOpacity > 1)
- throw 'captionSettings.nonVisibleOpacity must be in the interval [0, 1]';
-
- if (typeof context.settings.fixedHeight !== 'boolean') {
- throw 'fixedHeight must be a boolean';
- }
-
- if (typeof context.settings.captions !== 'boolean') {
- throw 'captions must be a boolean';
- }
-
- checkOrConvertNumber(context.settings, 'refreshTime');
-
- if (typeof context.settings.randomize !== 'boolean') {
- throw 'randomize must be a boolean';
- }
-
- }
-
- return this.each(function (index, gallery) {
- var $gallery = $(gallery);
- $gallery.addClass('justified-gallery');
-
- var context = $gallery.data('jg.context');
- if (typeof context === 'undefined') {
-
- if (typeof arg !== 'undefined' && arg !== null && typeof arg !== 'object')
- throw 'The argument must be an object';
-
- // Spinner init
- var $spinner = $('<div class="spinner"><span></span><span></span><span></span></div>');
-
- //Context init
- context = {
- settings : $.extend({}, defaults, arg),
- imgAnalyzerTimeout : null,
- entries : null,
- buildingRow : {
- entriesBuff : [],
- width : 0,
- aspectRatio : 0
- },
- lastAnalyzedIndex : -1,
- firstRowFlushed : false,
- yield : {
- every : 2, /* do a flush every context.yield.every flushes (
- * must be greater than 1, else the analyzeImages will loop */
- flushed : 0 //flushed rows without a yield
- },
- offY : 0,
- spinner : {
- active : false,
- phase : 0,
- timeslot : 150,
- $el : $spinner,
- $points : $spinner.find('span'),
- intervalId : null
- },
- checkWidthIntervalId : null,
- galleryWidth : $gallery.width(),
- $gallery : $gallery
- };
-
- $gallery.data('jg.context', context);
-
- } else if (arg === 'norewind') {
- // In this case we don't rewind, and analyze all the images
- } else {
- //redmatrix - this makes the gallery jump back to top after new content is loaded
- context.settings = $.extend({}, context.settings, arg);
- rewind(context);
- }
-
- checkSettings(context);
-
- context.entries = $gallery.find('> a').toArray();
- if (context.entries.length === 0) return;
-
- // Randomize
- if (context.settings.randomize) {
- context.entries.sort(function () { return Math.random() * 2 - 1; });
- $.each(context.entries, function () {
- $(this).appendTo($gallery);
- });
- }
-
- context.usedSizeRangeRegExp = new RegExp("(" +
- context.settings.sizeRangeSuffixes.lt100 + "|" +
- context.settings.sizeRangeSuffixes.lt240 + "|" +
- context.settings.sizeRangeSuffixes.lt320 + "|" +
- context.settings.sizeRangeSuffixes.lt500 + "|" +
- context.settings.sizeRangeSuffixes.lt640 + "|" +
- context.settings.sizeRangeSuffixes.lt1024 + ")$"
- );
-
- if (context.settings.maxRowHeight > 0 && context.settings.maxRowHeight < context.settings.rowHeight)
- context.settings.maxRowHeight = context.settings.rowHeight;
-
- var imagesToLoad = false;
- $.each(context.entries, function (index, entry) {
- var $entry = $(entry);
- var $image = $entry.find('img');
-
- if ($image.data('jg.loaded') !== true) {
- $image.data('jg.loaded', false);
-
- //DEBUG// console.log('listed ' + $image.attr('alt'));
-
- imagesToLoad = true;
- // Spinner start
- if (context.spinner.active === false) {
- context.spinner.active = true;
- $gallery.append(context.spinner.$el);
- $gallery.height(context.offY + context.spinner.$el.innerHeight());
- startLoadingSpinnerAnimation(context.spinner);
- }
-
- // Link Rel global overwrite
- if (context.settings.rel !== null) $entry.attr('rel', context.settings.rel);
-
- // Link Target global overwrite
- if (context.settings.target !== null) $entry.attr('target', context.settings.target);
-
- // Image src
- var imageSrc = (typeof $image.data('safe-src') !== 'undefined') ? $image.data('safe-src') : $image.attr('src');
- $image.data('jg.originalSrc', imageSrc);
- $image.attr('src', imageSrc);
-
- /* Check if the image is loaded or not using another image object.
- We cannot use the 'complete' image property, because some browsers,
- with a 404 set complete = true */
- var loadImg = new Image();
- var $loadImg = $(loadImg);
- $loadImg.one('load', function imgLoaded () {
- //DEBUG// console.log('img load (alt: ' + $image.attr('alt') + ')');
- $image.off('load error');
- $image.data('jg.imgw', loadImg.width);
- $image.data('jg.imgh', loadImg.height);
- $image.data('jg.loaded', true);
- startImgAnalyzer(context, false);
- });
- $loadImg.one('error', function imgLoadError () {
- //DEBUG// console.log('img error (alt: ' + $image.attr('alt') + ')');
- $image.off('load error');
- $image.data('jg.loaded', 'error');
- startImgAnalyzer(context, false);
- });
- loadImg.src = imageSrc;
-
- }
-
- });
-
- if (!imagesToLoad) startImgAnalyzer(context, false);
- checkWidth(context);
- });
-
- };
-
-}(jQuery));