friendica-github/view/theme/frio/frameworks/justifiedGallery/jquery.justifiedGallery.min.js

/*!
 * Justified Gallery - v3.6.1
 * http://miromannino.github.io/Justified-Gallery/
 * Copyright (c) 2015 Miro Mannino
 * Licensed under the MIT license.
 */
!function(a){var b=function(b,c){this.settings=c,this.checkSettings(),this.imgAnalyzerTimeout=null,this.entries=null,this.buildingRow={entriesBuff:[],width:0,height:0,aspectRatio:0},this.lastAnalyzedIndex=-1,this.yield={every:2,flushed:0},this.border=c.border>=0?c.border:c.margins,this.maxRowHeight=this.retrieveMaxRowHeight(),this.suffixRanges=this.retrieveSuffixRanges(),this.offY=this.border,this.spinner={phase:0,timeSlot:150,$el:a('<div class="spinner"><span></span><span></span><span></span></div>'),intervalId:null},this.checkWidthIntervalId=null,this.galleryWidth=b.width(),this.$gallery=b};b.prototype.getSuffix=function(a,b){var c,d;for(c=a>b?a:b,d=0;d<this.suffixRanges.length;d++)if(c<=this.suffixRanges[d])return this.settings.sizeRangeSuffixes[this.suffixRanges[d]];return this.settings.sizeRangeSuffixes[this.suffixRanges[d-1]]},b.prototype.removeSuffix=function(a,b){return a.substring(0,a.length-b.length)},b.prototype.endsWith=function(a,b){return-1!==a.indexOf(b,a.length-b.length)},b.prototype.getUsedSuffix=function(a){for(var b in this.settings.sizeRangeSuffixes)if(this.settings.sizeRangeSuffixes.hasOwnProperty(b)){if(0===this.settings.sizeRangeSuffixes[b].length)continue;if(this.endsWith(a,this.settings.sizeRangeSuffixes[b]))return this.settings.sizeRangeSuffixes[b]}return""},b.prototype.newSrc=function(a,b,c){var d;if(this.settings.thumbnailPath)d=this.settings.thumbnailPath(a,b,c);else{var e=a.match(this.settings.extension),f=null!==e?e[0]:"";d=a.replace(this.settings.extension,""),d=this.removeSuffix(d,this.getUsedSuffix(d)),d+=this.getSuffix(b,c)+f}return d},b.prototype.showImg=function(a,b){this.settings.cssAnimation?(a.addClass("entry-visible"),b&&b()):a.stop().fadeTo(this.settings.imagesAnimationDuration,1,b)},b.prototype.extractImgSrcFromImage=function(a){var b="undefined"!=typeof a.data("safe-src")?a.data("safe-src"):a.attr("src");return a.data("jg.originalSrc",b),b},b.prototype.imgFromEntry=function(a){var b=a.find("> img");return 0===b.length&&(b=a.find("> a > img")),0===b.length?null:b},b.prototype.captionFromEntry=function(a){var b=a.find("> .caption");return 0===b.length?null:b},b.prototype.displayEntry=function(b,c,d,e,f,g){b.width(e),b.height(g),b.css("top",d),b.css("left",c);var h=this.imgFromEntry(b);if(null!==h){h.css("width",e),h.css("height",f),h.css("margin-left",-e/2),h.css("margin-top",-f/2);var i=h.attr("src"),j=this.newSrc(i,e,f);h.one("error",function(){h.attr("src",h.data("jg.originalSrc"))});var k=function(){i!==j&&h.attr("src",j)};"skipped"===b.data("jg.loaded")?this.onImageEvent(i,a.proxy(function(){this.showImg(b,k),b.data("jg.loaded",!0)},this)):this.showImg(b,k)}else this.showImg(b);this.displayEntryCaption(b)},b.prototype.displayEntryCaption=function(b){var c=this.imgFromEntry(b);if(null!==c&&this.settings.captions){var d=this.captionFromEntry(b);if(null===d){var e=c.attr("alt");this.isValidCaption(e)||(e=b.attr("title")),this.isValidCaption(e)&&(d=a('<div class="caption">'+e+"</div>"),b.append(d),b.data("jg.createdCaption",!0))}null!==d&&(this.settings.cssAnimation||d.stop().fadeTo(0,this.settings.captionSettings.nonVisibleOpacity),this.addCaptionEventsHandlers(b))}else this.removeCaptionEventsHandlers(b)},b.prototype.isValidCaption=function(a){return"undefined"!=typeof a&&a.length>0},b.prototype.onEntryMouseEnterForCaption=function(b){var c=this.captionFromEntry(a(b.currentTarget));this.settings.cssAnimation?c.addClass("caption-visible").removeClass("caption-hidden"):c.stop().fadeTo(this.settings.captionSettings.animationDuration,this.settings.captionSettings.visibleOpacity)},b.prototype.onEntryMouseLeaveForCaption=function(b){var c=this.captionFromEntry(a(b.currentTarget));this.settings.cssAnimation?c.removeClass("caption-visible").removeClass("caption-hidden"):c.stop().fadeTo(this.settings.captionSettings.animationDuration,this.settings.captionSettings.nonVisibleOpacity)},b.prototype.addCaptionEventsHandlers=function(b){var c=b.data("jg.captionMouseEvents");"undefined"==typeof c&&(c={mouseenter:a.proxy(this.onEntryMouseEnterForCaption,this),mouseleave:a.proxy(this.onEntryMouseLeaveForCaption,this)},b.on("mouseenter",void 0,void 0,c.mouseenter),b.on("mouseleave",void 0,void 0,c.mouseleave),b.data("jg.captionMouseEvents",c))},b.prototype.removeCaptionEventsHandlers=function(a){var b=a.data("jg.captionMouseEvents");"undefined"!=typeof b&&(a.off("mouseenter",void 0,b.mouseenter),a.off("mouseleave",void 0,b.mouseleave),a.removeData("jg.captionMouseEvents"))},b.prototype.prepareBuildingRow=function(a){var b,c,d,e,f,g=!0,h=0,i=this.galleryWidth-2*this.border-(this.buildingRow.entriesBuff.length-1)*this.settings.margins,j=i/this.buildingRow.aspectRatio,k=this.buildingRow.width/i>this.settings.justifyThreshold;if(a&&"hide"===this.settings.lastRow&&!k){for(b=0;b<this.buildingRow.entriesBuff.length;b++)c=this.buildingRow.entriesBuff[b],this.settings.cssAnimation?c.removeClass("entry-visible"):c.stop().fadeTo(0,0);return-1}for(a&&!k&&"justify"!==this.settings.lastRow&&"hide"!==this.settings.lastRow&&(g=!1),b=0;b<this.buildingRow.entriesBuff.length;b++)c=this.buildingRow.entriesBuff[b],d=c.data("jg.width")/c.data("jg.height"),g?(e=b===this.buildingRow.entriesBuff.length-1?i:j*d,f=j):(e=this.settings.rowHeight*d,f=this.settings.rowHeight),i-=Math.round(e),c.data("jg.jwidth",Math.round(e)),c.data("jg.jheight",Math.ceil(f)),(0===b||h>f)&&(h=f);return this.settings.fixedHeight&&h>this.settings.rowHeight&&(h=this.settings.rowHeight),this.buildingRow.height=h,g},b.prototype.clearBuildingRow=function(){this.buildingRow.entriesBuff=[],this.buildingRow.aspectRatio=0,this.buildingRow.width=0},b.prototype.flushRow=function(a){var b,c,d,e=this.settings,f=this.border;if(c=this.prepareBuildingRow(a),a&&"hide"===e.lastRow&&-1===this.buildingRow.height)return void this.clearBuildingRow();if(this.maxRowHeight.isPercentage?this.maxRowHeight.value*e.rowHeight<this.buildingRow.height&&(this.buildingRow.height=this.maxRowHeight.value*e.rowHeight):this.maxRowHeight.value>0&&this.maxRowHeight.value<this.buildingRow.height&&(this.buildingRow.height=this.maxRowHeight.value),"center"===e.lastRow||"right"===e.lastRow){var g=this.galleryWidth-2*this.border-(this.buildingRow.entriesBuff.length-1)*e.margins;for(d=0;d<this.buildingRow.entriesBuff.length;d++)b=this.buildingRow.entriesBuff[d],g-=b.data("jg.jwidth");"center"===e.lastRow?f+=g/2:"right"===e.lastRow&&(f+=g)}for(d=0;d<this.buildingRow.entriesBuff.length;d++)b=this.buildingRow.entriesBuff[d],this.displayEntry(b,f,this.offY,b.data("jg.jwidth"),b.data("jg.jheight"),this.buildingRow.height),f+=b.data("jg.jwidth")+e.margins;this.$gallery.height(this.offY+this.buildingRow.height+this.border+(this.isSpinnerActive()?this.getSpinnerHeight():0)),(!a||this.buildingRow.height<=e.rowHeight&&c)&&(this.offY+=this.buildingRow.height+e.margins,this.clearBuildingRow(),this.$gallery.trigger("jg.rowflush"))},b.prototype.checkWidth=function(){this.checkWidthIntervalId=setInterval(a.proxy(function(){var a=parseFloat(this.$gallery.width());Math.abs(a-this.galleryWidth)>this.settings.refreshSensitivity&&(this.galleryWidth=a,this.rewind(),this.startImgAnalyzer(!0))},this),this.settings.refreshTime)},b.prototype.isSpinnerActive=function(){return null!==this.spinner.intervalId},b.prototype.getSpinnerHeight=function(){return this.spinner.$el.innerHeight()},b.prototype.stopLoadingSpinnerAnimation=function(){clearInterval(this.spinner.intervalId),this.spinner.intervalId=null,this.$gallery.height(this.$gallery.height()-this.getSpinnerHeight()),this.spinner.$el.detach()},b.prototype.startLoadingSpinnerAnimation=function(){var a=this.spinner,b=a.$el.find("span");clearInterval(a.intervalId),this.$gallery.append(a.$el),this.$gallery.height(this.offY+this.buildingRow.height+this.getSpinnerHeight()),a.intervalId=setInterval(function(){a.phase<b.length?b.eq(a.phase).fadeTo(a.timeSlot,1):b.eq(a.phase-b.length).fadeTo(a.timeSlot,0),a.phase=(a.phase+1)%(2*b.length)},a.timeSlot)},b.prototype.rewind=function(){this.lastAnalyzedIndex=-1,this.offY=this.border,this.clearBuildingRow()},b.prototype.updateEntries=function(b){return this.entries=this.$gallery.find(this.settings.selector).toArray(),0===this.entries.length?!1:(this.settings.filter?this.modifyEntries(this.filterArray,b):this.modifyEntries(this.resetFilters,b),a.isFunction(this.settings.sort)?this.modifyEntries(this.sortArray,b):this.settings.randomize&&this.modifyEntries(this.shuffleArray,b),!0)},b.prototype.insertToGallery=function(b){var c=this;a.each(b,function(){a(this).appendTo(c.$gallery)})},b.prototype.shuffleArray=function(a){var b,c,d;for(b=a.length-1;b>0;b--)c=Math.floor(Math.random()*(b+1)),d=a[b],a[b]=a[c],a[c]=d;return this.insertToGallery(a),a},b.prototype.sortArray=function(a){return a.sort(this.settings.sort),this.insertToGallery(a),a},b.prototype.resetFilters=function(b){for(var c=0;c<b.length;c++)a(b[c]).removeClass("jg-filtered");return b},b.prototype.filterArray=function(b){var c=this.settings;return"string"===a.type(c.filter)?b.filter(function(b){var d=a(b);return d.is(c.filter)?(d.removeClass("jg-filtered"),!0):(d.addClass("jg-filtered"),!1)}):a.isFunction(c.filter)?b.filter(c.filter):void 0},b.prototype.modifyEntries=function(a,b){var c=b?this.entries.splice(this.lastAnalyzedIndex+1,this.entries.length-this.lastAnalyzedIndex-1):this.entries;c=a.call(this,c),this.entries=b?this.entries.concat(c):c},b.prototype.destroy=function(){clearInterval(this.checkWidthIntervalId),a.each(this.entries,a.proxy(function(b,c){var d=a(c);d.css("width",""),d.css("height",""),d.css("top",""),d.css("left",""),d.data("jg.loaded",void 0),d.removeClass("jg-entry");var e=this.imgFromEntry(d);e.css("width",""),e.css("height",""),e.css("margin-left",""),e.css("margin-top",""),e.attr("src",e.data("jg.originalSrc")),e.data("jg.originalSrc",void 0),this.removeCaptionEventsHandlers(d);var f=this.captionFromEntry(d);d.data("jg.createdCaption")?(d.data("jg.createdCaption",void 0),null!==f&&f.remove()):null!==f&&f.fadeTo(0,1)},this)),this.$gallery.css("height",""),this.$gallery.removeClass("justified-gallery"),this.$gallery.data("jg.controller",void 0)},b.prototype.analyzeImages=function(b){for(var c=this.lastAnalyzedIndex+1;c<this.entries.length;c++){var d=a(this.entries[c]);if(d.data("jg.loaded")===!0||"skipped"===d.data("jg.loaded")){var e=this.galleryWidth-2*this.border-(this.buildingRow.entriesBuff.length-1)*this.settings.margins,f=d.data("jg.width")/d.data("jg.height");if(e/(this.buildingRow.aspectRatio+f)<this.settings.rowHeight&&(this.flushRow(!1),++this.yield.flushed>=this.yield.every))return void this.startImgAnalyzer(b);this.buildingRow.entriesBuff.push(d),this.buildingRow.aspectRatio+=f,this.buildingRow.width+=f*this.settings.rowHeight,this.lastAnalyzedIndex=c}else if("error"!==d.data("jg.loaded"))return}this.buildingRow.entriesBuff.length>0&&this.flushRow(!0),this.isSpinnerActive()&&this.stopLoadingSpinnerAnimation(),this.stopImgAnalyzerStarter(),this.$gallery.trigger(b?"jg.resize":"jg.complete")},b.prototype.stopImgAnalyzerStarter=function(){this.yield.flushed=0,null!==this.imgAnalyzerTimeout&&clearTimeout(this.imgAnalyzerTimeout)},b.prototype.startImgAnalyzer=function(a){var b=this;this.stopImgAnalyzerStarter(),this.imgAnalyzerTimeout=setTimeout(function(){b.analyzeImages(a)},.001)},b.prototype.onImageEvent=function(b,c,d){if(c||d){var e=new Image,f=a(e);c&&f.one("load",function(){f.off("load error"),c(e)}),d&&f.one("error",function(){f.off("load error"),d(e)}),e.src=b}},b.prototype.init=function(){var b=!1,c=!1,d=this;a.each(this.entries,function(e,f){var g=a(f),h=d.imgFromEntry(g);if(g.addClass("jg-entry"),g.data("jg.loaded")!==!0&&"skipped"!==g.data("jg.loaded"))if(null!==d.settings.rel&&g.attr("rel",d.settings.rel),null!==d.settings.target&&g.attr("target",d.settings.target),null!==h){var i=d.extractImgSrcFromImage(h);if(h.attr("src",i),d.settings.waitThumbnailsLoad===!1){var j=parseFloat(h.attr("width")),k=parseFloat(h.attr("height"));if(!isNaN(j)&&!isNaN(k))return g.data("jg.width",j),g.data("jg.height",k),g.data("jg.loaded","skipped"),c=!0,d.startImgAnalyzer(!1),!0}g.data("jg.loaded",!1),b=!0,d.isSpinnerActive()||d.startLoadingSpinnerAnimation(),d.onImageEvent(i,function(a){g.data("jg.width",a.width),g.data("jg.height",a.height),g.data("jg.loaded",!0),d.startImgAnalyzer(!1)},function(){g.data("jg.loaded","error"),d.startImgAnalyzer(!1)})}else g.data("jg.loaded",!0),g.data("jg.width",g.width()|parseFloat(g.css("width"))|1),g.data("jg.height",g.height()|parseFloat(g.css("height"))|1)}),b||c||this.startImgAnalyzer(!1),this.checkWidth()},b.prototype.checkOrConvertNumber=function(b,c){if("string"===a.type(b[c])&&(b[c]=parseFloat(b[c])),"number"!==a.type(b[c]))throw c+" must be a number";if(isNaN(b[c]))throw"invalid number for "+c},b.prototype.checkSizeRangesSuffixes=function(){if("object"!==a.type(this.settings.sizeRangeSuffixes))throw"sizeRangeSuffixes must be defined and must be an object";var b=[];for(var c in this.settings.sizeRangeSuffixes)this.settings.sizeRangeSuffixes.hasOwnProperty(c)&&b.push(c);for(var d={0:""},e=0;e<b.length;e++)if("string"===a.type(b[e]))try{var f=parseInt(b[e].replace(/^[a-z]+/,""),10);d[f]=this.settings.sizeRangeSuffixes[b[e]]}catch(g){throw"sizeRangeSuffixes keys must contains correct numbers ("+g+")"}else d[b[e]]=this.settings.sizeRangeSuffixes[b[e]];this.settings.sizeRangeSuffixes=d},b.prototype.retrieveMaxRowHeight=function(){var b={};if("string"===a.type(this.settings.maxRowHeight))this.settings.maxRowHeight.match(/^[0-9]+%$/)?(b.value=parseFloat(this.settings.maxRowHeight.match(/^([0-9]+)%$/)[1])/100,b.isPercentage=!1):(b.value=parseFloat(this.settings.maxRowHeight),b.isPercentage=!0);else{if("number"!==a.type(this.settings.maxRowHeight))throw"maxRowHeight must be a number or a percentage";b.value=this.settings.maxRowHeight,b.isPercentage=!1}if(isNaN(b.value))throw"invalid number for maxRowHeight";return b.isPercentage?b.value<100&&(b.value=100):b.value>0&&b.value<this.settings.rowHeight&&(b.value=this.settings.rowHeight),b},b.prototype.checkSettings=function(){if(this.checkSizeRangesSuffixes(),this.checkOrConvertNumber(this.settings,"rowHeight"),this.checkOrConvertNumber(this.settings,"margins"),this.checkOrConvertNumber(this.settings,"border"),"justify"!==this.settings.lastRow&&"nojustify"!==this.settings.lastRow&&"left"!==this.settings.lastRow&&"center"!==this.settings.lastRow&&"right"!==this.settings.lastRow&&"hide"!==this.settings.lastRow)throw'lastRow must be "justify", "nojustify", "left", "center", "right" or "hide"';if(this.checkOrConvertNumber(this.settings,"justifyThreshold"),this.settings.justifyThreshold<0||this.settings.justifyThreshold>1)throw"justifyThreshold must be in the interval [0,1]";if("boolean"!==a.type(this.settings.cssAnimation))throw"cssAnimation must be a boolean";if("boolean"!==a.type(this.settings.captions))throw"captions must be a boolean";if(this.checkOrConvertNumber(this.settings.captionSettings,"animationDuration"),this.checkOrConvertNumber(this.settings.captionSettings,"visibleOpacity"),this.settings.captionSettings.visibleOpacity<0||this.settings.captionSettings.visibleOpacity>1)throw"captionSettings.visibleOpacity must be in the interval [0, 1]";if(this.checkOrConvertNumber(this.settings.captionSettings,"nonVisibleOpacity"),this.settings.captionSettings.nonVisibleOpacity<0||this.settings.captionSettings.nonVisibleOpacity>1)throw"captionSettings.nonVisibleOpacity must be in the interval [0, 1]";if("boolean"!==a.type(this.settings.fixedHeight))throw"fixedHeight must be a boolean";if(this.checkOrConvertNumber(this.settings,"imagesAnimationDuration"),this.checkOrConvertNumber(this.settings,"refreshTime"),this.checkOrConvertNumber(this.settings,"refreshSensitivity"),"boolean"!==a.type(this.settings.randomize))throw"randomize must be a boolean";if("string"!==a.type(this.settings.selector))throw"selector must be a string";if(this.settings.sort!==!1&&!a.isFunction(this.settings.sort))throw"sort must be false or a comparison function";if(this.settings.filter!==!1&&!a.isFunction(this.settings.filter)&&"string"!==a.type(this.settings.filter))throw"filter must be false, a string or a filter function"},b.prototype.retrieveSuffixRanges=function(){var a=[];for(var b in this.settings.sizeRangeSuffixes)this.settings.sizeRangeSuffixes.hasOwnProperty(b)&&a.push(parseInt(b,10));return a.sort(function(a,b){return a>b?1:b>a?-1:0}),a},b.prototype.updateSettings=function(b){this.settings=a.extend({},this.settings,b),this.checkSettings(),this.border=this.settings.border>=0?this.settings.border:this.settings.margins,this.maxRowHeight=this.retrieveMaxRowHeight(),this.suffixRanges=this.retrieveSuffixRanges()},a.fn.justifiedGallery=function(c){return this.each(function(d,e){var f=a(e);f.addClass("justified-gallery");var g=f.data("jg.controller");if("undefined"==typeof g){if("undefined"!=typeof c&&null!==c&&"object"!==a.type(c)){if("destroy"===c)return;throw"The argument must be an object"}g=new b(f,a.extend({},a.fn.justifiedGallery.defaults,c)),f.data("jg.controller",g)}else if("norewind"===c);else{if("destroy"===c)return void g.destroy();g.updateSettings(c),g.rewind()}g.updateEntries("norewind"===c)&&g.init()})},a.fn.justifiedGallery.defaults={sizeRangeSuffixes:{},thumbnailPath:void 0,rowHeight:120,maxRowHeight:-1,margins:1,border:-1,lastRow:"nojustify",justifyThreshold:.75,fixedHeight:!1,waitThumbnailsLoad:!0,captions:!0,cssAnimation:!1,imagesAnimationDuration:500,captionSettings:{animationDuration:500,visibleOpacity:.7,nonVisibleOpacity:0},rel:null,target:null,extension:/\.[^.\\/]+$/,refreshTime:200,refreshSensitivity:0,randomize:!1,sort:!1,filter:!1,selector:"> a, > div:not(.spinner)"}}(jQuery);