Created
January 5, 2014 06:40
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Discourse embed code
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| /* global discourseUrl */ | |
| /* global discourseEmbedUrl */ | |
| (function() { | |
| var comments = document.getElementById('discourse-comments'), | |
| iframe = document.createElement('iframe'); | |
| iframe.src = discourseUrl + "embed/comments?embed_url=" + encodeURIComponent(discourseEmbedUrl); | |
| iframe.id = 'discourse-embed-frame'; | |
| iframe.width = "100%"; | |
| iframe.frameBorder = "0"; | |
| iframe.scrolling = "no"; | |
| comments.appendChild(iframe); | |
| // Thanks http://amendsoft-javascript.blogspot.ca/2010/04/find-x-and-y-coordinate-of-html-control.html | |
| function findPosY(obj) | |
| { | |
| var top = 0; | |
| if(obj.offsetParent) | |
| { | |
| while(1) | |
| { | |
| top += obj.offsetTop; | |
| if(!obj.offsetParent) | |
| break; | |
| obj = obj.offsetParent; | |
| } | |
| } | |
| else if(obj.y) | |
| { | |
| top += obj.y; | |
| } | |
| return top; | |
| } | |
| function postMessageReceived(e) { | |
| if (!e) { return; } | |
| if (discourseUrl.indexOf(e.origin) === -1) { return; } | |
| if (e.data) { | |
| if (e.data.type === 'discourse-resize' && e.data.height) { | |
| iframe.height = e.data.height + "px"; | |
| } | |
| if (e.data.type === 'discourse-scroll' && e.data.top) { | |
| // find iframe offset | |
| var destY = findPosY(iframe) + e.data.top; | |
| window.scrollTo(0, destY); | |
| } | |
| } | |
| } | |
| window.addEventListener('message', postMessageReceived, false); | |
| })(); |
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| <html> | |
| <!-- Just an example ripped from EvilTrout's blog for context --> | |
| <body> | |
| <div id="content"> | |
| <h1>Content</h1> | |
| <p> | |
| Content goes here. | |
| </p> | |
| </div> | |
| <div id="discourse-comments"></div> | |
| <script type="text/javascript"> | |
| var discourseUrl = "http://fishtank.eviltrout.com/", | |
| discourseEmbedUrl = 'http://eviltrout.com/2013/06/15/ember-vs-angular.html'; | |
| (function() { | |
| var d = document.createElement('script'); d.type = 'text/javascript'; d.async = true; | |
| d.src = discourseUrl + 'javascripts/embed.js'; | |
| (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(d); | |
| })(); | |
| </script> | |
| </body> | |
| </html> |
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