13 lines
32 KiB
JavaScript
13 lines
32 KiB
JavaScript
/*!
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Holder - client side image placeholders
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Version 2.9.4+cabil
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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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t=Object(this),n=t.length>>>0;if("function"!=typeof e)throw TypeError();var r,i=arguments[1];for(r=0;r<n;r++)r in t&&e.call(i,t[r],r,t)}),function(e){var t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";e.atob=e.atob||function(e){e=String(e);var n,r=0,i=[],o=0,a=0;if(e=e.replace(/\s/g,""),e.length%4===0&&(e=e.replace(/=+$/,"")),e.length%4===1)throw Error("InvalidCharacterError");if(/[^+\/0-9A-Za-z]/.test(e))throw Error("InvalidCharacterError");for(;r<e.length;)n=t.indexOf(e.charAt(r)),o=o<<6|n,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),r+=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("")},e.btoa=e.btoa||function(e){e=String(e);var n,r,i,o,a,s,l,h=0,u=[];if(/[^\x00-\xFF]/.test(e))throw 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webkitRequestAnimationFrame(function(){t(e.performance.now())})},e.cancelAnimationFrame=e.webkitCancelAnimationFrame}(e):e.mozRequestAnimationFrame&&e.mozCancelAnimationFrame?!function(e){e.requestAnimationFrame=function(t){return mozRequestAnimationFrame(function(){t(e.performance.now())})},e.cancelAnimationFrame=e.mozCancelAnimationFrame}(e):!function(e){e.requestAnimationFrame=function(t){return e.setTimeout(t,1e3/60)},e.cancelAnimationFrame=e.clearTimeout}(e))}}(this),function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.Holder=t():e.Holder=t()}(this,function(){return function(e){function t(r){if(n[r])return n[r].exports;var i=n[r]={exports:{},id:r,loaded:!1};return e[r].call(i.exports,i,i.exports,t),i.loaded=!0,i.exports}var n={};return t.m=e,t.c=n,t.p="",t(0)}([function(e,t,n){e.exports=n(1)},function(e,t,n){(function(t){function r(e,t,n,r){var a=i(n.substr(n.lastIndexOf(e.domain)),e);a&&o({mode:null,el:r,flags:a,engineSettings:t})}function i(e,t){var n={theme:k(O.settings.themes.gray,null),stylesheets:t.stylesheets,instanceOptions:t},r=e.indexOf("?"),i=[e];r!==-1&&(i=[e.slice(0,r),e.slice(r+1)]);var o=i[0].split("/");n.holderURL=e;var a=o[1],s=a.match(/([\d]+p?)x([\d]+p?)/);if(!s)return!1;if(n.fluid=a.indexOf("p")!==-1,n.dimensions={width:s[1].replace("p","%"),height:s[2].replace("p","%")},2===i.length){var l=v.parse(i[1]);if(w.truthy(l.ratio)){n.fluid=!0;var h=parseFloat(n.dimensions.width.replace("%","")),u=parseFloat(n.dimensions.height.replace("%",""));u=Math.floor(100*(u/h)),h=100,n.dimensions.width=h+"%",n.dimensions.height=u+"%"}if(n.auto=w.truthy(l.auto),l.bg&&(n.theme.bg=w.parseColor(l.bg)),l.fg&&(n.theme.fg=w.parseColor(l.fg)),l.bg&&!l.fg&&(n.autoFg=!0),l.theme&&n.instanceOptions.themes.hasOwnProperty(l.theme)&&(n.theme=k(n.instanceOptions.themes[l.theme],null)),l.text&&(n.text=l.text),l.textmode&&(n.textmode=l.textmode),l.size&&(n.size=l.size),l.font&&(n.font=l.font),l.align&&(n.align=l.align),l.lineWrap&&(n.lineWrap=l.lineWrap),n.nowrap=w.truthy(l.nowrap),n.outline=w.truthy(l.outline),w.truthy(l.random)){O.vars.cache.themeKeys=O.vars.cache.themeKeys||Object.keys(n.instanceOptions.themes);var c=O.vars.cache.themeKeys[0|Math.random()*O.vars.cache.themeKeys.length];n.theme=k(n.instanceOptions.themes[c],null)}}return n}function o(e){var t=e.mode,n=e.el,r=e.flags,i=e.engineSettings,o=r.dimensions,s=r.theme,l=o.width+"x"+o.height;t=null==t?r.fluid?"fluid":"image":t;var c=/holder_([a-z]+)/g,d=!1;if(null!=r.text&&(s.text=r.text,"object"===n.nodeName.toLowerCase())){for(var f=s.text.split("\\n"),p=0;p<f.length;p++)f[p]=w.encodeHtmlEntity(f[p]);s.text=f.join("\\n")}if(s.text){var g=s.text.match(c);null!==g&&g.forEach(function(e){"holder_dimensions"===e&&(s.text=s.text.replace(e,l))})}var m=r.holderURL,v=k(i,null);if(r.font&&(s.font=r.font,!v.noFontFallback&&"img"===n.nodeName.toLowerCase()&&O.setup.supportsCanvas&&"svg"===v.renderer&&(v=k(v,{renderer:"canvas"}))),r.font&&"canvas"==v.renderer&&(v.reRender=!0),"background"==t)null==n.getAttribute("data-background-src")&&x.setAttr(n,{"data-background-src":m});else{var y={};y[O.vars.dataAttr]=m,x.setAttr(n,y)}r.theme=s,n.holderData={flags:r,engineSettings:v},"image"!=t&&"fluid"!=t||x.setAttr(n,{alt:s.text?d?s.text:s.text+" ["+l+"]":l});var b={mode:t,el:n,holderSettings:{dimensions:o,theme:s,flags:r},engineSettings:v};"image"==t?(r.auto||(n.style.width=o.width+"px",n.style.height=o.height+"px"),"html"==v.renderer?n.style.backgroundColor=s.bg:(a(b),"exact"==r.textmode&&(n.holderData.resizeUpdate=!0,O.vars.resizableImages.push(n),h(n)))):"background"==t&&"html"!=v.renderer?a(b):"fluid"==t&&(n.holderData.resizeUpdate=!0,"%"==o.height.slice(-1)?n.style.height=o.height:null!=r.auto&&r.auto||(n.style.height=o.height+"px"),"%"==o.width.slice(-1)?n.style.width=o.width:null!=r.auto&&r.auto||(n.style.width=o.width+"px"),"inline"!=n.style.display&&""!==n.style.display&&"none"!=n.style.display||(n.style.display="block"),u(n),"html"==v.renderer?n.style.backgroundColor=s.bg:(O.vars.resizableImages.push(n),h(n)))}function a(e){function n(){var t=null;switch(l.renderer){case"canvas":t=E(u,e);break;case"svg":t=C(u,e);break;default:throw"Holder: invalid renderer: "+l.renderer}return t}var r=null,i=e.mode,o=e.el,a=e.holderSettings,l=e.engineSettings;switch(l.renderer){case"svg":if(!O.setup.supportsSVG)return;break;case"canvas":if(!O.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(r=n(),null==r)throw"Holder: couldn't render placeholder";"background"==i?(o.style.backgroundImage="url("+r+")",l.noBackgroundSize||(o.style.backgroundSize=h.width+"px "+h.height+"px")):("img"===o.nodeName.toLowerCase()?x.setAttr(o,{src:r}):"object"===o.nodeName.toLowerCase()&&x.setAttr(o,{data:r,type:"image/svg+xml"}),l.reRender&&t.setTimeout(function(){var e=n();if(null==e)throw"Holder: couldn't render placeholder";"img"===o.nodeName.toLowerCase()?x.setAttr(o,{src:e}):"object"===o.nodeName.toLowerCase()&&x.setAttr(o,{data:e,type:"image/svg+xml"})},150)),x.setAttr(o,{"data-holder-rendered":!0})}function s(e){function t(e,t,n,r){t.width=n,t.height=r,e.width=Math.max(e.width,t.width),e.height+=t.height}var n=O.defaults.size;switch(parseFloat(e.theme.size)?n=e.theme.size:parseFloat(e.flags.size)&&(n=e.flags.size),e.font={family:e.theme.font?e.theme.font:"Arial, Helvetica, Open Sans, sans-serif",size:l(e.width,e.height,n,O.defaults.scale),units:e.theme.units?e.theme.units:O.defaults.units,weight:e.theme.fontweight?e.theme.fontweight:"bold"},e.text=e.theme.text||Math.floor(e.width)+"x"+Math.floor(e.height),e.noWrap=e.theme.nowrap||e.flags.nowrap,e.align=e.theme.align||e.flags.align||"center",e.flags.textmode){case"literal":e.text=e.flags.dimensions.width+"x"+e.flags.dimensions.height;break;case"exact":if(!e.flags.exactDimensions)break;e.text=Math.floor(e.flags.exactDimensions.width)+"x"+Math.floor(e.flags.exactDimensions.height)}var r=e.flags.lineWrap||O.setup.lineWrapRatio,i=e.width*r,o=i,a=new y({width:e.width,height:e.height}),s=a.Shape,h=new s.Rect("holderBg",{fill:e.theme.bg});if(h.resize(e.width,e.height),a.root.add(h),e.flags.outline){var u=new S(h.properties.fill);u=u.lighten(u.lighterThan("7f7f7f")?-.1:.1),h.properties.outline={fill:u.toHex(!0),width:2}}var c=e.theme.fg;if(e.flags.autoFg){var d=new S(h.properties.fill),f=new S("fff"),p=new S("000",{alpha:.285714});c=d.blendAlpha(d.lighterThan("7f7f7f")?p:f).toHex(!0)}var g=new s.Group("holderTextGroup",{text:e.text,align:e.align,font:e.font,fill:c});g.moveTo(null,null,1),a.root.add(g);var m=g.textPositionData=z(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,x=0,A=0,C=0;w=new s.Group("line"+C),"left"!==e.align&&"right"!==e.align||(o=e.width*(1-2*(1-r)));for(var E=0;E<m.words.length;E++){var k=m.words[E];v=new s.Text(k.text);var T="\\n"==k.text;!e.noWrap&&(x+k.width>=o||T===!0)&&(t(g,w,x,g.properties.leading),g.add(w),x=0,A+=g.properties.leading,C+=1,w=new s.Group("line"+C),w.y=A),T!==!0&&(v.moveTo(x,0),x+=m.spaceWidth+k.width,w.add(v))}if(t(g,w,x,g.properties.leading),g.add(w),"left"===e.align)g.moveTo(e.width-i,null,null);else if("right"===e.align){for(b in g.children)w=g.children[b],w.moveTo(e.width-w.width,null,null);g.moveTo(0-(e.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((e.width-g.width)/2,null,null)}g.moveTo(null,(e.height-g.height)/2,null),(e.height-g.height)/2<0&&g.moveTo(null,0,null)}else v=new s.Text(e.text),w=new s.Group("line0"),w.add(v),g.add(w),"left"===e.align?g.moveTo(e.width-i,null,null):"right"===e.align?g.moveTo(0-(e.width-i),null,null):g.moveTo((e.width-m.boundingBox.width)/2,null,null),g.moveTo(null,(e.height-m.boundingBox.height)/2,null);return a}function l(e,t,n,r){var i=parseInt(e,10),o=parseInt(t,10),a=Math.max(i,o),s=Math.min(i,o),l=.8*Math.min(s,a*r);return Math.round(Math.max(n,l))}function h(e){var t;t=null==e||null==e.nodeType?O.vars.resizableImages:[e];for(var n=0,r=t.length;n<r;n++){var i=t[n];if(i.holderData){var o=i.holderData.flags,s=T(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 f(i)}}}function u(e){if(e.holderData){var t=T(e);if(t){var n=e.holderData.flags,r={fluidHeight:"%"==n.dimensions.height.slice(-1),fluidWidth:"%"==n.dimensions.width.slice(-1),mode:null,initialDimensions:t};r.fluidWidth&&!r.fluidHeight?(r.mode="width",r.ratio=r.initialDimensions.width/parseFloat(n.dimensions.height)):!r.fluidWidth&&r.fluidHeight&&(r.mode="height",r.ratio=parseFloat(n.dimensions.width)/r.initialDimensions.height),e.holderData.fluidConfig=r}else f(e)}}function c(){var e,n=[],r=Object.keys(O.vars.invisibleImages);r.forEach(function(t){e=O.vars.invisibleImages[t],T(e)&&"img"==e.nodeName.toLowerCase()&&(n.push(e),delete O.vars.invisibleImages[t])}),n.length&&F.run({images:n}),setTimeout(function(){t.requestAnimationFrame(c)},10)}function d(){O.vars.visibilityCheckStarted||(t.requestAnimationFrame(c),O.vars.visibilityCheckStarted=!0)}function f(e){e.holderData.invisibleId||(O.vars.invisibleId+=1,O.vars.invisibleImages["i"+O.vars.invisibleId]=e,e.holderData.invisibleId=O.vars.invisibleId)}function p(e){O.vars.debounceTimer||e.call(this),O.vars.debounceTimer&&t.clearTimeout(O.vars.debounceTimer),O.vars.debounceTimer=t.setTimeout(function(){O.vars.debounceTimer=null,e.call(this)},O.setup.debounce)}function g(){p(function(){h(null)})}var m=n(2),v=n(3),y=n(6),w=n(7),b=n(8),x=n(9),S=n(10),A=n(11),C=n(12),E=n(15),k=w.extend,T=w.dimensionCheck,j=A.svg_ns,F={version:A.version,addTheme:function(e,t){return null!=e&&null!=t&&(O.settings.themes[e]=t),delete O.vars.cache.themeKeys,this},addImage:function(e,t){var n=x.getNodeArray(t);return n.forEach(function(t){var n=x.newEl("img"),r={};r[O.setup.dataAttr]=e,x.setAttr(n,r),t.appendChild(n)}),this},setResizeUpdate:function(e,t){e.holderData&&(e.holderData.resizeUpdate=!!t,e.holderData.resizeUpdate&&h(e))},run:function(e){e=e||{};var 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d=l.substr(c).match(/([^\"]*)"?\)/);if(null!==d)h=d[1];else if(0===l.indexOf("url("))throw"Holder: unable to parse background URL: "+l}if(h){var f=i(h,a);f&&o({mode:"background",el:e,flags:f,engineSettings:n})}}}),u.forEach(function(e){var t={};try{t.data=e.getAttribute("data"),t.dataSrc=e.getAttribute(O.vars.dataAttr)}catch(i){}var o=null!=t.data&&0===t.data.indexOf(a.domain),s=null!=t.dataSrc&&0===t.dataSrc.indexOf(a.domain);o?r(a,n,t.data,e):s&&r(a,n,t.dataSrc,e)}),s.forEach(function(e){var t={};try{t.src=e.getAttribute("src"),t.dataSrc=e.getAttribute(O.vars.dataAttr),t.rendered=e.getAttribute("data-holder-rendered")}catch(i){}var o=null!=t.src,s=null!=t.dataSrc&&0===t.dataSrc.indexOf(a.domain),l=null!=t.rendered&&"true"==t.rendered;o?0===t.src.indexOf(a.domain)?r(a,n,t.src,e):s&&(l?r(a,n,t.dataSrc,e):!function(e,t,n,i,o){w.imageExists(e,function(e){e||r(t,n,i,o)})}(t.src,a,n,t.dataSrc,e)):s&&r(a,n,t.dataSrc,e)}),this}},O={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}},z=function(){var e=null,t=null,n=null;return function(r){var i=r.root;if(O.setup.supportsSVG){var o=!1,a=function(e){return document.createTextNode(e)};null!=e&&e.parentNode===document.body||(o=!0),e=b.initSVG(e,i.properties.width,i.properties.height),e.style.display="block",o&&(t=x.newEl("text",j),n=a(null),x.setAttr(t,{x:0}),t.appendChild(n),e.appendChild(t),document.body.appendChild(e),e.style.visibility="hidden",e.style.position="absolute",e.style.top="-100%",e.style.left="-100%");var s=i.children.holderTextGroup,l=s.properties;x.setAttr(t,{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})}),n.nodeValue=l.text;var h=t.getBBox(),u=Math.ceil(h.width/i.properties.width),c=l.text.split(" "),d=l.text.match(/\\n/g);u+=null==d?0:d.length,n.nodeValue=l.text.replace(/[ ]+/g,"");var f=t.getComputedTextLength(),p=h.width-f,g=Math.round(p/Math.max(1,c.length-1)),m=[];if(u>1){n.nodeValue="";for(var v=0;v<c.length;v++)if(0!==c[v].length){n.nodeValue=w.decodeHtmlEntity(c[v]);var y=t.getBBox();m.push({text:c[v],width:y.width})}}return 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