Cara Membuat Pendeteksi Offline Atau Online di Blogger Dengan Online.js

Ini menangkap permintaan AJAX yang dibuat saat koneksi sedang down, dan membuat ulang permintaan itu ketika kembali, sehingga aplikasi/blog Anda bereaksi dengan sempurna.

Cara Memasang Offline.js sangatlah mudah, anda dapat mengikuti tutorial nya disini.

Cara Memasang Offline.js di Blogger/Blogspot

.online{background:#30b55a}.offline{background:#ff1e2d}.offline-ui,.offline-ui *,.offline-ui :after,.offline-ui :before,.offline-ui:after,.offline-ui:before{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}.offline-ui{display:none;position:fixed;background:#fff;z-index:800;margin:auto;top:0;left:0;right:0}.offline-ui .offline-ui-content:before{display:inline}.offline-ui .offline-ui-retry{-webkit-user-select:none;-moz-user-select:none;user-select:none;display:none}.offline-ui .offline-ui-retry:before{display:inline}.offline-ui.offline-ui-up.offline-ui-up-5s{display:block}.offline-ui.offline-ui-down{display:block}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-retry{display:block}.offline-ui.offline-ui-down.offline-ui-reconnect-failed-2s.offline-ui-waiting .offline-ui-retry{display:none}@-webkit-keyframes offline-dropin{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:0}1%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:0}2%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:1}100%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:1}}@-moz-keyframes offline-dropin{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:0}1%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:0}2%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:1}100%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:1}}@-ms-keyframes offline-dropin{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:0}1%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:0}2%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:1}100%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:1}}@-o-keyframes offline-dropin{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:0}1%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:0}2%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:1}100%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:1}}@keyframes offline-dropin{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:0}1%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:0}2%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px);opacity:1}100%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0);opacity:1}}@-webkit-keyframes offline-dropout{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0)}100%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px)}}@-moz-keyframes offline-dropout{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0)}100%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px)}}@-ms-keyframes offline-dropout{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0)}100%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px)}}@-o-keyframes offline-dropout{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0)}100%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px)}}@keyframes offline-dropout{0%{transform:translateY(0);-webkit-transform:translateY(0);-moz-transform:translateY(0);-ms-transform:translateY(0);-o-transform:translateY(0)}100%{transform:translateY(-800px);-webkit-transform:translateY(-800px);-moz-transform:translateY(-800px);-ms-transform:translateY(-800px);-o-transform:translateY(-800px)}}@-webkit-keyframes offline-rotation{0%{transform:rotate(0);-webkit-transform:rotate(0);-moz-transform:rotate(0);-ms-transform:rotate(0);-o-transform:rotate(0)}100%{transform:rotate(359deg);-webkit-transform:rotate(359deg);-moz-transform:rotate(359deg);-ms-transform:rotate(359deg);-o-transform:rotate(359deg)}}@-moz-keyframes offline-rotation{0%{transform:rotate(0);-webkit-transform:rotate(0);-moz-transform:rotate(0);-ms-transform:rotate(0);-o-transform:rotate(0)}100%{transform:rotate(359deg);-webkit-transform:rotate(359deg);-moz-transform:rotate(359deg);-ms-transform:rotate(359deg);-o-transform:rotate(359deg)}}@-ms-keyframes offline-rotation{0%{transform:rotate(0);-webkit-transform:rotate(0);-moz-transform:rotate(0);-ms-transform:rotate(0);-o-transform:rotate(0)}100%{transform:rotate(359deg);-webkit-transform:rotate(359deg);-moz-transform:rotate(359deg);-ms-transform:rotate(359deg);-o-transform:rotate(359deg)}}@-o-keyframes offline-rotation{0%{transform:rotate(0);-webkit-transform:rotate(0);-moz-transform:rotate(0);-ms-transform:rotate(0);-o-transform:rotate(0)}100%{transform:rotate(359deg);-webkit-transform:rotate(359deg);-moz-transform:rotate(359deg);-ms-transform:rotate(359deg);-o-transform:rotate(359deg)}}@keyframes offline-rotation{0%{transform:rotate(0);-webkit-transform:rotate(0);-moz-transform:rotate(0);-ms-transform:rotate(0);-o-transform:rotate(0)}100%{transform:rotate(359deg);-webkit-transform:rotate(359deg);-moz-transform:rotate(359deg);-ms-transform:rotate(359deg);-o-transform:rotate(359deg)}}.offline-ui{-webkit-box-shadow:0 0 0 1px rgba(0,0,0,.15),0 0 1em rgba(0,0,0,.3);-moz-box-shadow:0 0 0 1px rgba(0,0,0,.15),0 0 1em rgba(0,0,0,.3);box-shadow:0 0 0 1px rgba(0,0,0,.15),0 0 1em rgba(0,0,0,.3);font-family:"Lucida Grande",sans-serif;font-size:14px;padding:1em;max-width:100%;background:#f6f6f6;color:#444;overflow:hidden}.offline-ui .offline-ui-content{padding-left:2em}.offline-ui .offline-ui-content:before{line-height:1.25em}.offline-ui .offline-ui-content:after{-webkit-border-radius:50%;-moz-border-radius:50%;-ms-border-radius:50%;-o-border-radius:50%;border-radius:50%;content:" ";display:block;position:absolute;top:0;bottom:0;left:1em;margin:auto;height:1em;width:1em}.offline-ui .offline-ui-retry{-webkit-box-shadow:0 1px 0 rgba(0,0,0,.08),inset 0 1px 2px rgba(255,255,255,.75);-moz-box-shadow:0 1px 0 rgba(0,0,0,.08),inset 0 1px 2px rgba(255,255,255,.75);box-shadow:0 1px 0 rgba(0,0,0,.08),inset 0 1px 2px rgba(255,255,255,.75);-webkit-border-radius:2px;-moz-border-radius:2px;-ms-border-radius:2px;-o-border-radius:2px;border-radius:2px;background-image:-webkit-gradient(linear,50% 0,50% 100%,color-stop(0,#ededed),color-stop(38%,#ededed),color-stop(100%,#dedede));background-image:-webkit-linear-gradient(#ededed,#ededed 38%,#dedede);background-image:-moz-linear-gradient(#ededed,#ededed 38%,#dedede);background-image:-o-linear-gradient(#ededed,#ededed 38%,#dedede);background-image:linear-gradient(#ededed,#ededed 38%,#dedede);position:absolute;right:4em;top:1em;bottom:1em;border:1px solid rgba(0,0,0,.25);text-shadow:0 1px 0 #f0f0f0;padding:0 1em;line-height:1.6em;height:1.7em;margin:auto;font-size:12px;text-decoration:none;color:inherit}.offline-ui.offline-ui-up{-webkit-animation:offline-dropout forwards .5s 2s;-moz-animation:offline-dropout forwards .5s 2s;-ms-animation:offline-dropout forwards .5s 2s;-o-animation:offline-dropout forwards .5s 2s;animation:offline-dropout forwards .5s 2s;-webkit-backface-visibility:hidden}.offline-ui.offline-ui-up .offline-ui-content:after{background:#80d580}.offline-ui.offline-ui-down{-webkit-animation:offline-dropin .5s;-moz-animation:offline-dropin .5s;-ms-animation:offline-dropin .5s;-o-animation:offline-dropin .5s;animation:offline-dropin .5s;-webkit-backface-visibility:hidden}.offline-ui.offline-ui-down .offline-ui-content:after{background:#ec8787}.offline-ui.offline-ui-down.offline-ui-connecting,.offline-ui.offline-ui-down.offline-ui-waiting{padding-right:3em}.offline-ui.offline-ui-down.offline-ui-connecting .offline-ui-content:after,.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content:after{background:#ec8787}.offline-ui.offline-ui-down.offline-ui-connecting:after,.offline-ui.offline-ui-down.offline-ui-waiting:after{-webkit-animation:offline-rotation .7s linear infinite;-moz-animation:offline-rotation .7s linear infinite;-ms-animation:offline-rotation .7s linear infinite;-o-animation:offline-rotation .7s linear infinite;animation:offline-rotation .7s linear infinite;-webkit-backface-visibility:hidden;-webkit-border-radius:50%;-moz-border-radius:50%;-ms-border-radius:50%;-o-border-radius:50%;border-radius:50%;content:" ";display:block;position:absolute;right:1em;top:0;bottom:0;margin:auto;height:1em;width:1em;border:2px solid transparent;border-top-color:rgba(0,0,0,.5);border-left-color:rgba(0,0,0,.5);opacity:.7}.offline-ui.offline-ui-down.offline-ui-waiting{padding-right:11em}.offline-ui.offline-ui-down.offline-ui-waiting.offline-ui-reconnect-failed-2s{padding-right:0}.offline-ui .offline-ui-retry:before{content:"Reconnect"}.offline-ui.offline-ui-up .offline-ui-content:before{content:"Your computer is connected to the internet."}@media (max-width:1024px){.offline-ui.offline-ui-up .offline-ui-content:before{content:"Your device is connected to the internet."}}@media (max-width:568px){.offline-ui.offline-ui-up .offline-ui-content:before{content:"Your device is connected."}}.offline-ui.offline-ui-down .offline-ui-content:before{content:"Your computer lost its internet connection."}@media (max-width:1024px){.offline-ui.offline-ui-down .offline-ui-content:before{content:"Your device lost its internet connection."}}@media (max-width:568px){.offline-ui.offline-ui-down .offline-ui-content:before{content:"Your device isn't connected."}}.offline-ui.offline-ui-down.offline-ui-connecting .offline-ui-content:before,.offline-ui.offline-ui-down.offline-ui-connecting-2s .offline-ui-content:before{content:"Attempting to reconnect..."}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=second]:before{content:"Connection lost. Reconnecting in " attr(data-retry-in-value) " seconds..."}@media (max-width:568px){.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=second]:before{content:"Reconnecting in " attr(data-retry-in-value) "s..."}}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=second][data-retry-in-value="1"]:before{content:"Connection lost. Reconnecting in " attr(data-retry-in-value) " second..."}@media (max-width:568px){.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=second][data-retry-in-value="1"]:before{content:"Reconnecting in " attr(data-retry-in-value) "s..."}}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=minute]:before{content:"Connection lost. Reconnecting in " attr(data-retry-in-value) " minutes..."}@media (max-width:568px){.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=minute]:before{content:"Reconnecting in " attr(data-retry-in-value) "m..."}}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=minute][data-retry-in-value="1"]:before{content:"Connection lost. Reconnecting in " attr(data-retry-in-value) " minute..."}@media (max-width:568px){.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=minute][data-retry-in-value="1"]:before{content:"Reconnecting in " attr(data-retry-in-value) "m..."}}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=hour]:before{content:"Connection lost. Reconnecting in " attr(data-retry-in-value) " hours..."}@media (max-width:568px){.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=hour]:before{content:"Reconnecting in " attr(data-retry-in-value) "h..."}}.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=hour][data-retry-in-value="1"]:before{content:"Connection lost. Reconnecting in " attr(data-retry-in-value) " hour..."}@media (max-width:568px){.offline-ui.offline-ui-down.offline-ui-waiting .offline-ui-content[data-retry-in-unit=hour][data-retry-in-value="1"]:before{content:"Reconnecting in " attr(data-retry-in-value) "h..."}}.offline-ui.offline-ui-down.offline-ui-reconnect-failed-2s.offline-ui-waiting .offline-ui-retry{display:none}.offline-ui.offline-ui-down.offline-ui-reconnect-failed-2s .offline-ui-content:before{content:"Connection attempt failed."}

5. Letakan kode berikut diatas kode </body>

<script>
(function(){var n,f;f=$(".online"),n=$(".offline"),Offline.on("confirmed-down",function(){return f.fadeOut(function(){return n.fadeIn()})}),Offline.on("confirmed-up",function(){return n.fadeOut(function(){return f.fadeIn()})})}).call(this);
</script>
<script>
//<![CDATA[
/*! offline 0.7.1 by fyi.my.id */
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a.trigger("confirmed-up"),"up"!==a.state?(a.state="up",a.trigger("up")):void 0},a.markDown=function(){return a.trigger("confirmed-down"),"down"!==a.state?(a.state="down",a.trigger("down")):void 0},f={},a.on=function(b,c,d){var e,g,h,i,j;if(g=b.split(" "),g.length>1){for(j=[],h=0,i=g.length;i>h;h++)e=g[h],j.push(a.on(e,c,d));return j}return null==f[b]&&(f[b]=[]),f[b].push([d,c])},a.off=function(a,b){var c,d,e,g,h;if(null!=f[a]){if(b){for(d=0,h=[];d<f[a].length;)g=f[a][d],c=g[0],e=g[1],h.push(e===b?f[a].splice(d,1):d++);return h}return f[a]=[]}},a.trigger=function(a){var b,c,d,e,g,h,i;if(null!=f[a]){for(g=f[a],i=[],d=0,e=g.length;e>d;d++)h=g[d],b=h[0],c=h[1],i.push(c.call(b));return i}},b=function(a,b,c){var d,e;return d=function(){return a.status&&a.status<12e3?b():c()},null===a.onprogress?(a.addEventListener("error",c,!1),a.addEventListener("timeout",c,!1),a.addEventListener("load",d,!1)):(e=a.onreadystatechange,a.onreadystatechange=function(){return 4===a.readyState?d():0===a.readyState&&c(),"function"==typeof e?e.apply(null,arguments):void 0})},a.checks={},a.checks.xhr=function(){var c,d;d=new XMLHttpRequest,d.offline=!1,d.open("HEAD",a.getOption("checks.xhr.url"),!0),b(d,a.markUp,a.markDown);try{d.send()}catch(e){c=e,a.markDown()}return d},a.checks.image=function(){var b;return b=document.createElement("img"),b.onerror=a.markDown,b.onload=a.markUp,void(b.src=a.getOption("checks.image.url"))},a.checks.down=a.markDown,a.checks.up=a.markUp,a.check=function(){return a.trigger("checking"),a.checks[a.getOption("checks.active")]()},a.confirmUp=a.confirmDown=a.check,a.onXHR=function(a){var b,c,e;return b=function(b,c){var d;return d=b.open,b.open=function(e,f,g,h,i){return a({type:e,url:f,async:g,flags:c,user:h,password:i,xhr:b}),d.apply(b,arguments)}},e=window.XMLHttpRequest,window.XMLHttpRequest=function(a){var c,d,f;return c=new e(a),b(c,a),f=c.setRequestHeader,c.headers={},c.setRequestHeader=function(a,b){return c.headers[a]=b,f.call(c,a,b)},d=c.overrideMimeType,c.overrideMimeType=function(a){return c.mimeType=a,d.call(c,a)},c},d(window.XMLHttpRequest,e),null!=window.XDomainRequest?(c=window.XDomainRequest,window.XDomainRequest=function(){var a;return a=new c,b(a),a},d(window.XDomainRequest,c)):void 0},g=function(){return a.getOption("interceptRequests")&&a.onXHR(function(c){var d;return d=c.xhr,d.offline!==!1?b(d,a.confirmUp,a.confirmDown):void 0}),a.getOption("checkOnLoad")?a.check():void 0},setTimeout(g,0),window.Offline=a}).call(this),function(){var a,b,c,d,e,f,g,h,i;if(!window.Offline)throw new Error("Offline Reconnect brought in without offline.js");d=Offline.reconnect={},f=null,e=function(){var a;return null!=d.state&&"inactive"!==d.state&&Offline.trigger("reconnect:stopped"),d.state="inactive",d.remaining=d.delay=null!=(a=Offline.getOption("reconnect.initialDelay"))?a:3},b=function(){var a,b;return a=null!=(b=Offline.getOption("reconnect.delay"))?b:Math.min(Math.ceil(1.5*d.delay),3600),d.remaining=d.delay=a},g=function(){return"connecting"!==d.state?(d.remaining-=1,Offline.trigger("reconnect:tick"),0===d.remaining?h():void 0):void 0},h=function(){return"waiting"===d.state?(Offline.trigger("reconnect:connecting"),d.state="connecting",Offline.check()):void 0},a=function(){return Offline.getOption("reconnect")?(e(),d.state="waiting",Offline.trigger("reconnect:started"),f=setInterval(g,1e3)):void 0},i=function(){return null!=f&&clearInterval(f),e()},c=function(){return Offline.getOption("reconnect")?"connecting"===d.state?(Offline.trigger("reconnect:failure"),d.state="waiting",b()):void 0:void 0},d.tryNow=h,e(),Offline.on("down",a),Offline.on("confirmed-down",c),Offline.on("up",i)}.call(this),function(){var a,b,c,d,e,f;if(!window.Offline)throw new Error("Requests module brought in without offline.js");c=[],f=!1,d=function(a){return 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//]]>
</script>

6. Tekan Simpan Tema.

Itulah Cara memasang offline js di blogger. jika kalian ingin lihat demo tampilannya. cukup matikan saja koneksi internet kalian saaat mengunjungi blog ini.

Referensi & kode : https://github.hubspot.com/offline/docs/welcome/