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Propane caveatPatchor.js snippet to display Instagram images inline

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gistfile1.js
JavaScript
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var displayInstagramImages = true;
 
if (displayInstagramImages) {
 
Campfire.InstagramExpander = Class.create({
initialize: function(chat) {
this.chat = chat;
var messages = this.chat.transcript.messages;
for (var i = 0; i < messages.length; i++) {
this.detectInstagramURL(messages[i]);
}
},
 
detectInstagramURL: function(message) {
/* we are going to use the messageID to uniquely identify our requestJSON request
so we don't check pending messages */
if (!message.pending() && message.kind === 'text') {
var links = message.bodyElement().select('a:not(image)');
if (links.length != 1) {
return;
}
var href = links[0].getAttribute('href');
var match = href.match(/^https?:\/\/instagr.am\/p\/[A-Za-z0-9]+\/?$/);
if (!match) return;
window.propane.requestJSON(message.id(), 'http://api.instagram.com/oembed?url=' + href, 'window.chat.instagramexpander', 'onEmbedDataLoaded', 'onEmbedDataFailed');
}
},
 
onEmbedDataLoaded: function(messageID, data) {
var message = window.chat.transcript.getMessageById(messageID);
if (!message) return;
 
if (data['type'] === 'photo') {
var imageURL = data['url'];
message.resize((function() {
message.bodyCell.insert({bottom: '<div style="width:100%; margin-top:5px; padding-top: 5px; border-top:1px dotted #ccc;"><a href="'+imageURL+'" class="image loading" target="_blank">' + '<img src="'+imageURL+'" onload="$dispatch(&quot;inlineImageLoaded&quot;, this)" onerror="$dispatch(&quot;inlineImageLoadFailed&quot;, this)" /></a></div>'});
}).bind(this));
}
},
 
onEmbedDataFailed: function(messageID) {
/* No cleanup required, we only alter the HTML after we get back a succesful load from the data */
},
 
onMessagesInsertedBeforeDisplay: function(messages) {
for (var i = 0; i < messages.length; i++) {
this.detectInstagramURL(messages[i]);
}
},
 
onMessageAccepted: function(message, messageID) {
this.detectInstagramURL(message);
}
});
 
Campfire.Responders.push("InstagramExpander");
window.chat.installPropaneResponder("InstagramExpander", "instagramexpander");
}

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