!function($, window, document, _undefined)
{
"use strict";

XF.OembedFetcher = XF.Element.newHandler({
options: {
provider: '',
id: ''
},

init: function()
{
if (this.options.provider && this.options.id)
{
$.ajax(XF.canonicalizeUrl('oembed.php'), {
data: {
'provider': this.options.provider,
'id': this.options.id.replace(/#/, '{{_hash_}}')
},
success: XF.proxy(this, 'handleResponse'),
global: false
});
}
},

handleResponse: function(data, message, xhr)
{
if (data.hasOwnProperty('html'))
{
this.insertOembedHtml(data, xhr.getResponseHeader('X-Oembed-Retain-Scripts') ? true : false); // see oEmbed controller response
}
else if (data.type == 'photo')
{
this.insertOembedImage(data);
}
else if (data.hasOwnProperty('xf-oembed-error'))
{
this.oembedFetchError(data);
}
},

insertOembedHtml: function(data, retainScripts)
{
if (data.html === undefined)
{
return false;
}

var container = {
content: data.html
};

XF.setupHtmlInsert(container, XF.proxy(function($html, container, onComplete)
{
this.$target
.addClass('bbOembed--loaded')
.html($html);

this.onComplete();

}, this), retainScripts);
},

insertOembedImage: function(data)
{
var $a = $('<a />', this.getImageLinkData(data)),
$i = $('<img class="bbImage" data-zoom-target="1" />').appendTo($a);

$i.on('load', XF.proxy(this, 'onComplete'))
.attr('src', data.url);

this.$target.empty().append($a);
},

oembedFetchError: function(data)
{
this.$target.addClass('bbOembed--failure');
console.warn('Unable to fetch %s media id: %s', this.options.provider, this.options.id);
},

getImageLinkData: function(data)
{
var attributes = {
rel: 'external',
target: '_blank'
},
properties = {
href: ['web_page', 'web_page_short_url', 'author_url'],
title: ['title'],
'data-author': ['author_name']
},
attr = '',
i = 0;

for (attr in properties)
{
for (i = 0; i < properties[attr].length; i++)
{
if (data.hasOwnProperty(properties[attr][i]))
{
attributes[attr] = data[properties[attr][i]];

break;
}
}
}

return attributes;
},

onComplete: function()
{
$(document).trigger('embed:loaded');
XF.layoutChange();
}
});

XF.TweetRenderer = XF.Element.newHandler({
options: {
tweetId: null,

// see https://dev.twitter.com/web/javascript/creating-widgets
lang: 'en',
dnt: 'false',
related: null,
via: null,

conversation: 'all',
cards: 'visible',
align: null,
theme: 'light',
linkColor: '#2b7bb9'
},

init: function()
{
var tweetId = this.options.tweetId + '', t = this;

if (window.twttr && tweetId.length)
{
twttr.ready(function(twttr)
{
twttr.widgets.createTweet(tweetId, t.$target.get(0), t.options)
.then(function()
{
t.$target.find('a').first().remove();
$(document).trigger('embed:loaded');
XF.layoutChange();
});

});
}
}
});

XF.Element.register('oembed', 'XF.OembedFetcher');
XF.Element.register('tweet', 'XF.TweetRenderer');
}
(jQuery, window, document);