glowingbear-mainbox/js/plugins.js
Lorenz Hübschle-Schneider 7d13f49dab Add tweet embedding plugin
2014-08-09 14:18:13 +01:00

387 lines
14 KiB
JavaScript

/*
* This file contains the plugin definitions
*/
plugins = angular.module('plugins', []);
/*
* Definition of a user provided plugin with sensible default values
*
* User plugins are created by providing a contentForMessage function
* that parses a string and return any additional content.
*/
var Plugin = function(contentForMessage) {
return {
contentForMessage: contentForMessage,
exclusive: false,
name: "additional content"
};
};
/*
* This service provides access to the plugin manager
*
* The plugin manager is where the various user provided plugins
* are registered. It is responsible for finding additional content
* to display when messages are received.
*
*/
plugins.service('plugins', ['userPlugins', '$sce', function(userPlugins, $sce) {
var nsfwRegexp = new RegExp('nsfw', 'i');
/*
* Defines the plugin manager object
*/
var PluginManagerObject = function() {
var plugins = [];
/*
* Register the user provides plugins
*
* @param userPlugins user provided plugins
*/
var registerPlugins = function(userPlugins) {
for (var i = 0; i < userPlugins.length; i++) {
plugins.push(userPlugins[i]);
}
};
/*
* Iterates through all the registered plugins
* and run their contentForMessage function.
*/
var contentForMessage = function(message) {
message.metadata = [];
var addPluginContent = function(content, pluginName, num) {
if (num) {
pluginName += " " + num;
}
// If content isn't a callback, it's HTML
if (!(content instanceof Function)) {
content = $sce.trustAsHtml(content);
}
message.metadata.push({
'content': content,
'nsfw': nsfw,
'name': pluginName
});
};
for (var i = 0; i < plugins.length; i++) {
var nsfw = false;
if (message.text.match(nsfwRegexp)) {
nsfw = true;
}
var pluginContent = plugins[i].contentForMessage(message.text);
if (pluginContent && pluginContent !== []) {
if (pluginContent instanceof Array) {
for (var j = pluginContent.length - 1; j >= 0; j--) {
// only give a number if there are multiple embeds
var num = (pluginContent.length == 1) ? undefined : (j + 1);
addPluginContent(pluginContent[j], plugins[i].name, num);
}
} else {
addPluginContent(pluginContent, plugins[i].name);
}
if (plugins[i].exclusive) {
break;
}
}
}
return message;
};
return {
registerPlugins: registerPlugins,
contentForMessage: contentForMessage
};
};
// Instanciates and registers the plugin manager.
this.PluginManager = new PluginManagerObject();
this.PluginManager.registerPlugins(userPlugins.plugins);
}]);
/*
* This factory exposes the collection of user provided plugins.
*
* To create your own plugin, you need to:
*
* 1. Define it's contentForMessage function. The contentForMessage
* function takes a string as a parameter and returns a HTML string.
*
* 2. Instanciate a Plugin object with contentForMessage function as it's
* argument.
*
* 3. Add it to the plugins array.
*
*/
plugins.factory('userPlugins', function() {
// standard JSONp origin policy trick
var jsonp = function (url, callback) {
var callbackName = 'jsonp_callback_' + Math.round(100000 * Math.random());
window[callbackName] = function(data) {
delete window[callbackName];
document.body.removeChild(script);
callback(data);
};
var script = document.createElement('script');
script.src = url + (url.indexOf('?') >= 0 ? '&' : '?') + 'callback=' + callbackName;
document.body.appendChild(script);
};
var urlRegexp = RegExp(/(?:ftp|https?):\/\/\S*[^\s.;,(){}<>]/g);
var urlPlugin = function(callback) {
return function(message) {
var urls = message.match(urlRegexp);
var content = [];
for (var i = 0; urls && i < urls.length; i++) {
var result = callback(urls[i]);
if (result) {
content.push(result);
}
}
return content;
};
};
/*
* Spotify Embedded Player
*
* See: https://developer.spotify.com/technologies/widgets/spotify-play-button/
*
*/
var spotifyPlugin = new Plugin(function(message) {
content = [];
var addMatch = function(match) {
for (var i = 0; match && i < match.length; i++) {
var id = match[i].substr(match[i].length - 22, match[i].length);
content.push('<iframe src="//embed.spotify.com/?uri=spotify:track:' + id + '" width="300" height="80" frameborder="0" allowtransparency="true"></iframe>');
}
};
addMatch(message.match(/spotify:track:([a-zA-Z-0-9]{22})/g));
addMatch(message.match(/open.spotify.com\/track\/([a-zA-Z-0-9]{22})/g));
return content;
});
spotifyPlugin.name = 'Spotify track';
/*
* YouTube Embedded Player
*
* See: https://developers.google.com/youtube/player_parameters
*/
var youtubePlugin = new Plugin(function(message) {
var regExp = /(?:https?:\/\/)?(?:www\.)?(?:youtube.com|youtu.be)\/(?:v\/|embed\/|watch(?:\?v=|\/))?([a-zA-Z0-9-]+)/gm;
var match = regExp.exec(message);
var content = [];
// iterate over all matches
while (match !== null){
var token = match[1];
var embedurl = "https://www.youtube.com/embed/" + token + "?html5=1&iv_load_policy=3&modestbranding=1&rel=0&showinfo=0";
content.push('<iframe width="560" height="315" src="'+ embedurl + '" frameborder="0" allowfullscreen frameborder="0"></iframe>');
// next match
match = regExp.exec(message);
}
return content;
});
youtubePlugin.name = 'YouTube video';
/*
* Dailymotion Embedded Player
*
* See: http://www.dailymotion.com/doc/api/player.html
*/
var dailymotionPlugin = new Plugin(function(message) {
var rPath = /dailymotion.com\/.*video\/([^_?# ]+)/;
var rAnchor = /dailymotion.com\/.*#video=([^_& ]+)/;
var rShorten = /dai.ly\/([^_?# ]+)/;
var match = message.match(rPath) || message.match(rAnchor) || message.match(rShorten);
if (match) {
var id = match[1];
var embedurl = 'https://www.dailymotion.com/embed/video/' + id + '?html&controls=html&startscreen=html&info=0&logo=0&related=0';
return '<iframe frameborder="0" width="480" height="270" src="' + embedurl + '"></iframe>';
}
return null;
});
dailymotionPlugin.name = 'Dailymotion video';
/*
* AlloCine Embedded Player
*/
var allocinePlugin = new Plugin(function(message) {
var rVideokast = /allocine.fr\/videokast\/video-(\d+)/;
var rCmedia = /allocine.fr\/.*cmedia=(\d+)/;
var match = message.match(rVideokast) || message.match(rCmedia);
if (match) {
var id = match[1];
var embedurl = 'http://www.allocine.fr/_video/iblogvision.aspx?cmedia=' + id;
return '<iframe frameborder="0" width="480" height="270" src="' + embedurl + '"></iframe>';
}
return null;
});
allocinePlugin.name = 'AlloCine video';
/*
* Image Preview
*/
var imagePlugin = new Plugin(
urlPlugin(function(url) {
if (url.match(/\.(png|gif|jpg|jpeg)$/i)) {
/* A fukung.net URL may end by an image extension but is not a direct link. */
if (url.indexOf("^https?://fukung.net/v/") != -1) {
url = url.replace(/.*\//, "http://media.fukung.net/imgs/");
} else if (url.match(/^http:\/\/(i\.)?imgur\.com\//i)) {
// remove protocol specification to load over https if used by g-b
url = url.replace(/http:/, "");
}
return '<a target="_blank" href="'+url+'"><img class="embed" src="' + url + '"></a>';
}
})
);
imagePlugin.name = 'image';
/*
* Cloud Music Embedded Players
*/
var cloudmusicPlugin = new Plugin(
urlPlugin(function(url) {
/* SoundCloud http://help.soundcloud.com/customer/portal/articles/247785-what-widgets-can-i-use-from-soundcloud- */
if (url.match(/^https?:\/\/soundcloud.com\//)) {
return '<iframe width="100%" height="120" scrolling="no" frameborder="no" src="https://w.soundcloud.com/player/?url=' + url + '&amp;color=ff6600&amp;auto_play=false&amp;show_artwork=true"></iframe>';
}
/* MixCloud */
if (url.match(/^https?:\/\/([a-z]+\.)?mixcloud.com\//)) {
return '<iframe width="480" height="60" src="//www.mixcloud.com/widget/iframe/?feed=' + url + '&mini=1&stylecolor=&hide_artwork=&embed_type=widget_standard&hide_tracklist=1&hide_cover=" frameborder="0"></iframe>';
}
})
);
cloudmusicPlugin.name = 'cloud music';
/*
* Google Maps
*/
var googlemapPlugin = new Plugin(
urlPlugin(function(url) {
if (url.match(/^https?:\/\/maps\.google\./i) || url.match(/^https?:\/\/(?:[\w]+\.)?google\.[\w]+\/maps/i)) {
return '<iframe width="450" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="' + url + '&output=embed"></iframe>';
}
})
);
googlemapPlugin.name = 'Google Map';
/*
* Asciinema plugin
*/
var asciinemaPlugin = new Plugin(function(message) {
var regexp = /^https?:\/\/(www\.)?asciinema.org\/a\/(\d+)/;
var match = message.match(regexp);
if (match) {
var id = match[3];
return "<script type='text/javascript' src='https://asciinema.org/a/" + id + ".js' id='asciicast-" + id + "' async></script>";
}
});
asciinemaPlugin.name = "ascii cast";
var yrPlugin = new Plugin(
urlPlugin(function(url) {
var regexp = /^https?:\/\/(?:www\.)?yr\.no\/(place|stad|sted|sadji|paikka)\/(([^\s.;,(){}<>\/]+\/){3,})/;
var match = url.match(regexp);
if (match) {
var language = match[1];
var location = match[2];
var city = match[match.length - 1].slice(0, -1);
url = "http://www.yr.no/" + language + "/" + location + "avansert_meteogram.png";
return "<img src='" + url + "' alt='Meteogram for " + city + "' />";
}
})
);
yrPlugin.name = "meteogram";
// Embed GitHub gists
var gistPlugin = new Plugin(
urlPlugin(function(url) {
var regexp = /^https:\/\/gist\.github.com\/[^.?]+/i;
var match = url.match(regexp);
if (match) {
// get the URL from the match to trim away pseudo file endings and request parameters
url = match[0] + '.json';
// load gist asynchronously -- return a function here
return function() {
var element = document.querySelector('.embed_' + this.$$hashKey);
jsonp(url, function(data) {
// Add the gist stylesheet only once
if (document.querySelectorAll('link[rel=stylesheet][href="' + data.stylesheet + '"]').length < 1) {
var stylesheet = '<link rel="stylesheet" href="' + data.stylesheet + '"></link>';
document.getElementsByTagName('head')[0].innerHTML += stylesheet;
}
element.innerHTML = '<div style="clear:both">' + data.div + '</div>';
});
};
}
})
);
gistPlugin.name = 'Gist';
var tweetPlugin = new Plugin(
urlPlugin(function(url) {
var regexp = /^https?:\/\/twitter\.com\/(?:#!\/)?(\w+)\/status(?:es)?\/(\d+)/i;
var match = url.match(regexp);
if (match) {
url = 'https://api.twitter.com/1/statuses/oembed.json?id=' + match[2];
return function() {
var element = document.querySelector('.embed_' + this.$$hashKey);
jsonp(url, function(data) {
// sepearate the HTML into content and script tag
var scriptIndex = data.html.indexOf("<script ");
var content = data.html.substr(0, scriptIndex);
// Set DNT (Do Not Track)
content = content.replace("<blockquote class=\"twitter-tweet\">", "<blockquote class=\"twitter-tweet\" data-dnt=\"true\">");
element.innerHTML = content;
// The script tag needs to be generated manually or the browser won't load it
var scriptElem = document.createElement('script');
// Hardcoding the URL here, I don't suppose it's going to change anytime soon
scriptElem.src = "//platform.twitter.com/widgets.js";
element.appendChild(scriptElem);
});
};
}
})
);
tweetPlugin.name = 'Tweet';
return {
plugins: [youtubePlugin, dailymotionPlugin, allocinePlugin, imagePlugin, spotifyPlugin, cloudmusicPlugin, googlemapPlugin, asciinemaPlugin, yrPlugin, gistPlugin, tweetPlugin]
};
});