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21a9c2934a
[ci skip]
13 lines
52 KiB
JavaScript
13 lines
52 KiB
JavaScript
/*!
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Holder - client side image placeholders
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Version 2.9.2+30qun
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© 2016 Ivan Malopinsky - http://imsky.co
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Site: http://holderjs.com
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Issues: https://github.com/imsky/holder/issues
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License: MIT
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*/
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!function(t){if(t.document){var e=t.document;e.querySelectorAll||(e.querySelectorAll=function(r){var n,i=e.createElement("style"),o=[];for(e.documentElement.firstChild.appendChild(i),e._qsa=[],i.styleSheet.cssText=r+"{x-qsa:expression(document._qsa && document._qsa.push(this))}",t.scrollBy(0,0),i.parentNode.removeChild(i);e._qsa.length;)n=e._qsa.shift(),n.style.removeAttribute("x-qsa"),o.push(n);return e._qsa=null,o}),e.querySelector||(e.querySelector=function(t){var r=e.querySelectorAll(t);return r.length?r[0]:null}),e.getElementsByClassName||(e.getElementsByClassName=function(t){return t=String(t).replace(/^|\s+/g,"."),e.querySelectorAll(t)}),Object.keys||(Object.keys=function(t){if(t!==Object(t))throw TypeError("Object.keys called on non-object");var e,r=[];for(e in t)Object.prototype.hasOwnProperty.call(t,e)&&r.push(e);return r}),Array.prototype.forEach||(Array.prototype.forEach=function(t){if(void 0===this||null===this)throw TypeError();var e=Object(this),r=e.length>>>0;if("function"!=typeof t)throw TypeError();var n,i=arguments[1];for(n=0;r>n;n++)n in e&&t.call(i,e[n],n,e)}),function(t){var e="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";t.atob=t.atob||function(t){t=String(t);var r,n=0,i=[],o=0,a=0;if(t=t.replace(/\s/g,""),t.length%4===0&&(t=t.replace(/=+$/,"")),t.length%4===1)throw Error("InvalidCharacterError");if(/[^+\/0-9A-Za-z]/.test(t))throw Error("InvalidCharacterError");for(;n<t.length;)r=e.indexOf(t.charAt(n)),o=o<<6|r,a+=6,24===a&&(i.push(String.fromCharCode(o>>16&255)),i.push(String.fromCharCode(o>>8&255)),i.push(String.fromCharCode(255&o)),a=0,o=0),n+=1;return 12===a?(o>>=4,i.push(String.fromCharCode(255&o))):18===a&&(o>>=2,i.push(String.fromCharCode(o>>8&255)),i.push(String.fromCharCode(255&o))),i.join("")},t.btoa=t.btoa||function(t){t=String(t);var r,n,i,o,a,s,l,h=0,u=[];if(/[^\x00-\xFF]/.test(t))throw Error("InvalidCharacterError");for(;h<t.length;)r=t.charCodeAt(h++),n=t.charCodeAt(h++),i=t.charCodeAt(h++),o=r>>2,a=(3&r)<<4|n>>4,s=(15&n)<<2|i>>6,l=63&i,h===t.length+2?(s=64,l=64):h===t.length+1&&(l=64),u.push(e.charAt(o),e.charAt(a),e.charAt(s),e.charAt(l));return u.join("")}}(t),Object.prototype.hasOwnProperty||(Object.prototype.hasOwnProperty=function(t){var e=this.__proto__||this.constructor.prototype;return t in this&&(!(t in e)||e[t]!==this[t])}),function(){if("performance"in t==!1&&(t.performance={}),Date.now=Date.now||function(){return(new Date).getTime()},"now"in t.performance==!1){var e=Date.now();performance.timing&&performance.timing.navigationStart&&(e=performance.timing.navigationStart),t.performance.now=function(){return Date.now()-e}}}(),t.requestAnimationFrame||(t.webkitRequestAnimationFrame&&t.webkitCancelAnimationFrame?!function(t){t.requestAnimationFrame=function(e){return webkitRequestAnimationFrame(function(){e(t.performance.now())})},t.cancelAnimationFrame=t.webkitCancelAnimationFrame}(t):t.mozRequestAnimationFrame&&t.mozCancelAnimationFrame?!function(t){t.requestAnimationFrame=function(e){return mozRequestAnimationFrame(function(){e(t.performance.now())})},t.cancelAnimationFrame=t.mozCancelAnimationFrame}(t):!function(t){t.requestAnimationFrame=function(e){return t.setTimeout(e,1e3/60)},t.cancelAnimationFrame=t.clearTimeout}(t))}}(this),function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.Holder=e():t.Holder=e()}(this,function(){return function(t){function e(n){if(r[n])return r[n].exports;var i=r[n]={exports:{},id:n,loaded:!1};return t[n].call(i.exports,i,i.exports,e),i.loaded=!0,i.exports}var r={};return e.m=t,e.c=r,e.p="",e(0)}([function(t,e,r){t.exports=r(1)},function(t,e,r){(function(e){function n(t,e,r,n){var a=i(r.substr(r.lastIndexOf(t.domain)),t);a&&o({mode:null,el:n,flags:a,engineSettings:e})}function i(t,e){var r={theme:T(U.settings.themes.gray,null),stylesheets:e.stylesheets,instanceOptions:e},n=t.indexOf("?"),i=[t];-1!==n&&(i=[t.slice(0,n),t.slice(n+1)]);var o=i[0].split("/");r.holderURL=t;var a=o[1],s=a.match(/([\d]+p?)x([\d]+p?)/);if(!s)return!1;if(r.fluid=-1!==a.indexOf("p"),r.dimensions={width:s[1].replace("p","%"),height:s[2].replace("p","%")},2===i.length){var l=v.parse(i[1]);if(l.bg&&(r.theme.bg=w.parseColor(l.bg)),l.fg&&(r.theme.fg=w.parseColor(l.fg)),l.bg&&!l.fg&&(r.autoFg=!0),l.theme&&r.instanceOptions.themes.hasOwnProperty(l.theme)&&(r.theme=T(r.instanceOptions.themes[l.theme],null)),l.text&&(r.text=l.text),l.textmode&&(r.textmode=l.textmode),l.size&&(r.size=l.size),l.font&&(r.font=l.font),l.align&&(r.align=l.align),l.lineWrap&&(r.lineWrap=l.lineWrap),r.nowrap=w.truthy(l.nowrap),r.auto=w.truthy(l.auto),r.outline=w.truthy(l.outline),w.truthy(l.random)){U.vars.cache.themeKeys=U.vars.cache.themeKeys||Object.keys(r.instanceOptions.themes);var h=U.vars.cache.themeKeys[0|Math.random()*U.vars.cache.themeKeys.length];r.theme=T(r.instanceOptions.themes[h],null)}}return r}function o(t){var e=t.mode,r=t.el,n=t.flags,i=t.engineSettings,o=n.dimensions,s=n.theme,l=o.width+"x"+o.height;e=null==e?n.fluid?"fluid":"image":e;var f=/holder_([a-z]+)/g,c=!1;if(null!=n.text&&(s.text=n.text,"object"===r.nodeName.toLowerCase())){for(var d=s.text.split("\\n"),p=0;p<d.length;p++)d[p]=w.encodeHtmlEntity(d[p]);s.text=d.join("\\n")}if(s.text){var g=s.text.match(f);null!==g&&g.forEach(function(t){"holder_dimensions"===t&&(s.text=s.text.replace(t,l))})}var m=n.holderURL,v=T(i,null);if(n.font&&(s.font=n.font,!v.noFontFallback&&"img"===r.nodeName.toLowerCase()&&U.setup.supportsCanvas&&"svg"===v.renderer&&(v=T(v,{renderer:"canvas"}))),n.font&&"canvas"==v.renderer&&(v.reRender=!0),"background"==e)null==r.getAttribute("data-background-src")&&E.setAttr(r,{"data-background-src":m});else{var y={};y[U.vars.dataAttr]=m,E.setAttr(r,y)}n.theme=s,r.holderData={flags:n,engineSettings:v},("image"==e||"fluid"==e)&&E.setAttr(r,{alt:s.text?c?s.text:s.text+" ["+l+"]":l});var b={mode:e,el:r,holderSettings:{dimensions:o,theme:s,flags:n},engineSettings:v};"image"==e?(n.auto||(r.style.width=o.width+"px",r.style.height=o.height+"px"),"html"==v.renderer?r.style.backgroundColor=s.bg:(a(b),"exact"==n.textmode&&(r.holderData.resizeUpdate=!0,U.vars.resizableImages.push(r),h(r)))):"background"==e&&"html"!=v.renderer?a(b):"fluid"==e&&(r.holderData.resizeUpdate=!0,"%"==o.height.slice(-1)?r.style.height=o.height:null!=n.auto&&n.auto||(r.style.height=o.height+"px"),"%"==o.width.slice(-1)?r.style.width=o.width:null!=n.auto&&n.auto||(r.style.width=o.width+"px"),("inline"==r.style.display||""===r.style.display||"none"==r.style.display)&&(r.style.display="block"),u(r),"html"==v.renderer?r.style.backgroundColor=s.bg:(U.vars.resizableImages.push(r),h(r)))}function a(t){function r(){var e=null;switch(l.renderer){case"canvas":e=I(u,t);break;case"svg":e=S(u,t);break;default:throw"Holder: invalid renderer: "+l.renderer}return e}var n=null,i=t.mode,o=t.el,a=t.holderSettings,l=t.engineSettings;switch(l.renderer){case"svg":if(!U.setup.supportsSVG)return;break;case"canvas":if(!U.setup.supportsCanvas)return;break;default:return}var h={width:a.dimensions.width,height:a.dimensions.height,theme:a.theme,flags:a.flags},u=s(h);if(n=r(),null==n)throw"Holder: couldn't render placeholder";"background"==i?(o.style.backgroundImage="url("+n+")",o.style.backgroundSize=h.width+"px "+h.height+"px"):("img"===o.nodeName.toLowerCase()?E.setAttr(o,{src:n}):"object"===o.nodeName.toLowerCase()&&E.setAttr(o,{data:n,type:"image/svg+xml"}),l.reRender&&e.setTimeout(function(){var t=r();if(null==t)throw"Holder: couldn't render placeholder";"img"===o.nodeName.toLowerCase()?E.setAttr(o,{src:t}):"object"===o.nodeName.toLowerCase()&&E.setAttr(o,{data:t,type:"image/svg+xml"})},150)),E.setAttr(o,{"data-holder-rendered":!0})}function s(t){function e(t,e,r,n){e.width=r,e.height=n,t.width=Math.max(t.width,e.width),t.height+=e.height}var r=U.defaults.size;switch(parseFloat(t.theme.size)?r=t.theme.size:parseFloat(t.flags.size)&&(r=t.flags.size),t.font={family:t.theme.font?t.theme.font:"Arial, Helvetica, Open Sans, sans-serif",size:l(t.width,t.height,r,U.defaults.scale),units:t.theme.units?t.theme.units:U.defaults.units,weight:t.theme.fontweight?t.theme.fontweight:"bold"},t.text=t.theme.text||Math.floor(t.width)+"x"+Math.floor(t.height),t.noWrap=t.theme.nowrap||t.flags.nowrap,t.align=t.theme.align||t.flags.align||"center",t.flags.textmode){case"literal":t.text=t.flags.dimensions.width+"x"+t.flags.dimensions.height;break;case"exact":if(!t.flags.exactDimensions)break;t.text=Math.floor(t.flags.exactDimensions.width)+"x"+Math.floor(t.flags.exactDimensions.height)}var n=t.flags.lineWrap||U.setup.lineWrapRatio,i=t.width*n,o=i,a=new y({width:t.width,height:t.height}),s=a.Shape,h=new s.Rect("holderBg",{fill:t.theme.bg});if(h.resize(t.width,t.height),a.root.add(h),t.flags.outline){var u=new A(h.properties.fill);u=u.lighten(u.lighterThan("7f7f7f")?-.1:.1),h.properties.outline={fill:u.toHex(!0),width:2}}var f=t.theme.fg;if(t.flags.autoFg){var c=new A(h.properties.fill),d=new A("fff"),p=new A("000",{alpha:.285714});f=c.blendAlpha(c.lighterThan("7f7f7f")?p:d).toHex(!0)}var g=new s.Group("holderTextGroup",{text:t.text,align:t.align,font:t.font,fill:f});g.moveTo(null,null,1),a.root.add(g);var m=g.textPositionData=L(a);if(!m)throw"Holder: staging fallback not supported yet.";g.properties.leading=m.boundingBox.height;var v=null,w=null;if(m.lineCount>1){var b,E=0,x=0,S=0;w=new s.Group("line"+S),("left"===t.align||"right"===t.align)&&(o=t.width*(1-2*(1-n)));for(var I=0;I<m.words.length;I++){var T=m.words[I];v=new s.Text(T.text);var B="\\n"==T.text;!t.noWrap&&(E+T.width>=o||B===!0)&&(e(g,w,E,g.properties.leading),g.add(w),E=0,x+=g.properties.leading,S+=1,w=new s.Group("line"+S),w.y=x),B!==!0&&(v.moveTo(E,0),E+=m.spaceWidth+T.width,w.add(v))}if(e(g,w,E,g.properties.leading),g.add(w),"left"===t.align)g.moveTo(t.width-i,null,null);else if("right"===t.align){for(b in g.children)w=g.children[b],w.moveTo(t.width-w.width,null,null);g.moveTo(0-(t.width-i),null,null)}else{for(b in g.children)w=g.children[b],w.moveTo((g.width-w.width)/2,null,null);g.moveTo((t.width-g.width)/2,null,null)}g.moveTo(null,(t.height-g.height)/2,null),(t.height-g.height)/2<0&&g.moveTo(null,0,null)}else v=new s.Text(t.text),w=new s.Group("line0"),w.add(v),g.add(w),"left"===t.align?g.moveTo(t.width-i,null,null):"right"===t.align?g.moveTo(0-(t.width-i),null,null):g.moveTo((t.width-m.boundingBox.width)/2,null,null),g.moveTo(null,(t.height-m.boundingBox.height)/2,null);return a}function l(t,e,r,n){var i=parseInt(t,10),o=parseInt(e,10),a=Math.max(i,o),s=Math.min(i,o),l=.8*Math.min(s,a*n);return Math.round(Math.max(r,l))}function h(t){var e;e=null==t||null==t.nodeType?U.vars.resizableImages:[t];for(var r=0,n=e.length;n>r;r++){var i=e[r];if(i.holderData){var o=i.holderData.flags,s=B(i);if(s){if(!i.holderData.resizeUpdate)continue;if(o.fluid&&o.auto){var l=i.holderData.fluidConfig;switch(l.mode){case"width":s.height=s.width/l.ratio;break;case"height":s.width=s.height*l.ratio}}var h={mode:"image",holderSettings:{dimensions:s,theme:o.theme,flags:o},el:i,engineSettings:i.holderData.engineSettings};"exact"==o.textmode&&(o.exactDimensions=s,h.holderSettings.dimensions=o.dimensions),a(h)}else d(i)}}}function u(t){if(t.holderData){var e=B(t);if(e){var r=t.holderData.flags,n={fluidHeight:"%"==r.dimensions.height.slice(-1),fluidWidth:"%"==r.dimensions.width.slice(-1),mode:null,initialDimensions:e};n.fluidWidth&&!n.fluidHeight?(n.mode="width",n.ratio=n.initialDimensions.width/parseFloat(r.dimensions.height)):!n.fluidWidth&&n.fluidHeight&&(n.mode="height",n.ratio=parseFloat(r.dimensions.width)/n.initialDimensions.height),t.holderData.fluidConfig=n}else d(t)}}function f(){var t,r=[],n=Object.keys(U.vars.invisibleImages);n.forEach(function(e){t=U.vars.invisibleImages[e],B(t)&&"img"==t.nodeName.toLowerCase()&&(r.push(t),delete U.vars.invisibleImages[e])}),r.length&&C.run({images:r}),setTimeout(function(){e.requestAnimationFrame(f)},10)}function c(){U.vars.visibilityCheckStarted||(e.requestAnimationFrame(f),U.vars.visibilityCheckStarted=!0)}function d(t){t.holderData.invisibleId||(U.vars.invisibleId+=1,U.vars.invisibleImages["i"+U.vars.invisibleId]=t,t.holderData.invisibleId=U.vars.invisibleId)}function p(t){U.vars.debounceTimer||t.call(this),U.vars.debounceTimer&&e.clearTimeout(U.vars.debounceTimer),U.vars.debounceTimer=e.setTimeout(function(){U.vars.debounceTimer=null,t.call(this)},U.setup.debounce)}function g(){p(function(){h(null)})}var m=r(2),v=r(3),y=r(10),w=r(11),b=r(12),E=r(13),A=r(14),x=r(15),S=r(16),I=r(19),T=w.extend,B=w.dimensionCheck,R=x.svg_ns,C={version:x.version,addTheme:function(t,e){return null!=t&&null!=e&&(U.settings.themes[t]=e),delete U.vars.cache.themeKeys,this},addImage:function(t,e){var r=E.getNodeArray(e);return r.forEach(function(e){var r=E.newEl("img"),n={};n[U.setup.dataAttr]=t,E.setAttr(r,n),e.appendChild(r)}),this},setResizeUpdate:function(t,e){t.holderData&&(t.holderData.resizeUpdate=!!e,t.holderData.resizeUpdate&&h(t))},run:function(t){t=t||{};var r={},a=T(U.settings,t);U.vars.preempted=!0,U.vars.dataAttr=a.dataAttr||U.setup.dataAttr,r.renderer=a.renderer?a.renderer:U.setup.renderer,-1===U.setup.renderers.join(",").indexOf(r.renderer)&&(r.renderer=U.setup.supportsSVG?"svg":U.setup.supportsCanvas?"canvas":"html");var s=E.getNodeArray(a.images),l=E.getNodeArray(a.bgnodes),h=E.getNodeArray(a.stylenodes),u=E.getNodeArray(a.objects);return r.stylesheets=[],r.svgXMLStylesheet=!0,r.noFontFallback=a.noFontFallback?a.noFontFallback:!1,h.forEach(function(t){if(t.attributes.rel&&t.attributes.href&&"stylesheet"==t.attributes.rel.value){var e=t.attributes.href.value,n=E.newEl("a");n.href=e;var i=n.protocol+"//"+n.host+n.pathname+n.search;r.stylesheets.push(i)}}),l.forEach(function(t){if(e.getComputedStyle){var n=e.getComputedStyle(t,null).getPropertyValue("background-image"),s=t.getAttribute("data-background-src"),l=s||n,h=null,u=a.domain+"/",f=l.indexOf(u);if(0===f)h=l;else if(1===f&&"?"===l[0])h=l.slice(1);else{var c=l.substr(f).match(/([^\"]*)"?\)/);if(null!==c)h=c[1];else if(0===l.indexOf("url("))throw"Holder: unable to parse background URL: "+l}if(null!=h){var d=i(h,a);d&&o({mode:"background",el:t,flags:d,engineSettings:r})}}}),u.forEach(function(t){var e={};try{e.data=t.getAttribute("data"),e.dataSrc=t.getAttribute(U.vars.dataAttr)}catch(i){}var o=null!=e.data&&0===e.data.indexOf(a.domain),s=null!=e.dataSrc&&0===e.dataSrc.indexOf(a.domain);o?n(a,r,e.data,t):s&&n(a,r,e.dataSrc,t)}),s.forEach(function(t){var e={};try{e.src=t.getAttribute("src"),e.dataSrc=t.getAttribute(U.vars.dataAttr),e.rendered=t.getAttribute("data-holder-rendered")}catch(i){}var o=null!=e.src,s=null!=e.dataSrc&&0===e.dataSrc.indexOf(a.domain),l=null!=e.rendered&&"true"==e.rendered;o?0===e.src.indexOf(a.domain)?n(a,r,e.src,t):s&&(l?n(a,r,e.dataSrc,t):!function(t,e,r,i,o){w.imageExists(t,function(t){t||n(e,r,i,o)})}(e.src,a,r,e.dataSrc,t)):s&&n(a,r,e.dataSrc,t)}),this}},U={settings:{domain:"holder.js",images:"img",objects:"object",bgnodes:"body .holderjs",stylenodes:"head link.holderjs",themes:{gray:{bg:"#EEEEEE",fg:"#AAAAAA"},social:{bg:"#3a5a97",fg:"#FFFFFF"},industrial:{bg:"#434A52",fg:"#C2F200"},sky:{bg:"#0D8FDB",fg:"#FFFFFF"},vine:{bg:"#39DBAC",fg:"#1E292C"},lava:{bg:"#F8591A",fg:"#1C2846"}}},defaults:{size:10,units:"pt",scale:1/16}},L=function(){var t=null,e=null,r=null;return function(n){var i=n.root;if(U.setup.supportsSVG){var o=!1,a=function(t){return document.createTextNode(t)};(null==t||t.parentNode!==document.body)&&(o=!0),t=b.initSVG(t,i.properties.width,i.properties.height),t.style.display="block",o&&(e=E.newEl("text",R),r=a(null),E.setAttr(e,{x:0}),e.appendChild(r),t.appendChild(e),document.body.appendChild(t),t.style.visibility="hidden",t.style.position="absolute",t.style.top="-100%",t.style.left="-100%");var s=i.children.holderTextGroup,l=s.properties;E.setAttr(e,{y:l.font.size,style:w.cssProps({"font-weight":l.font.weight,"font-size":l.font.size+l.font.units,"font-family":l.font.family})}),r.nodeValue=l.text;var h=e.getBBox(),u=Math.ceil(h.width/i.properties.width),f=l.text.split(" "),c=l.text.match(/\\n/g);u+=null==c?0:c.length,r.nodeValue=l.text.replace(/[ ]+/g,"");var d=e.getComputedTextLength(),p=h.width-d,g=Math.round(p/Math.max(1,f.length-1)),m=[];if(u>1){r.nodeValue="";for(var v=0;v<f.length;v++)if(0!==f[v].length){r.nodeValue=w.decodeHtmlEntity(f[v]);var y=e.getBBox();m.push({text:f[v],width:y.width})}}return 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