Created
January 29, 2012 18:03
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ON AIR light for Justin.tv
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| @import url(ttp://fonts.googleapis.com/css?family=Ruda:900); | |
| .JTVOnAir { | |
| background-color: #000; | |
| color: #800; | |
| border: 0.125ex solid #222; | |
| font-family: Ruda, sans-serif; | |
| font-weight: 900; | |
| line-height: 1em; | |
| height: 1em; | |
| padding: 0 0.25ex; | |
| cursor: pointer; | |
| vertical-align: middle; | |
| } | |
| .JTVOnAir.live { | |
| color: #F00; | |
| text-shadow: 0 0 0.125ex #F00; | |
| } |
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| /* Copyright (c) 2012 Yu-Jie Lin | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy of | |
| * this software and associated documentation files (the "Software"), to deal in | |
| * the Software without restriction, including without limitation the rights to | |
| * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies | |
| * of the Software, and to permit persons to whom the Software is furnished to do | |
| * so, subject to the following conditions: | |
| * | |
| * The above copyright notice and this permission notice shall be included in all | |
| * copies or substantial portions of the Software. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| * SOFTWARE. | |
| */ | |
| /********* | |
| * Model * | |
| *********/ | |
| function JTVOnAirModel(channel) { | |
| var self = this; | |
| // ------ | |
| this.update = function() { | |
| // Justin.tv API returns only "[]" when channel is not on air. Which is not | |
| // a callback'd response, must use YQL to wrap it in order to get callback | |
| // working. | |
| var API = 'http://api.justin.tv/api/stream/list.json?limit=1&channel=' + self.channel; | |
| var YQL = 'http://query.yahooapis.com/v1/public/yql?q=' + | |
| encodeURIComponent("select * from json where url='" + API + "'") + | |
| '&format=json&callback=?'; | |
| $.getJSON(YQL, function(data){ | |
| var live = data.query.results !== null; | |
| if (data.query.results) { | |
| self.data = data.query.results.json; | |
| } | |
| if (live == self.live) | |
| return; | |
| self.live = live; | |
| $(self).trigger('live_change'); | |
| }); | |
| } | |
| // ------ | |
| var channel = this.channel = channel; | |
| this.live = null; | |
| this.interval = 10 * 60 * 1000; | |
| setInterval(this.update, this.interval); | |
| } | |
| /******** | |
| * View * | |
| ********/ | |
| function JTVOnAirView(target, model) { | |
| var self = this; | |
| // ------ | |
| this.update = function() { | |
| if (self.model.live) { | |
| self.$onair.addClass('live') | |
| .attr('title', self.model.channel + ' is Live. ' + self.model.data.channel_count + ' viewers'); | |
| } else { | |
| self.$onair.removeClass('live') | |
| .attr('title', self.model.channel + ' is Offline.'); | |
| } | |
| } | |
| // ------ | |
| this.model = model; | |
| $(model).bind('live_change', this.update); | |
| this.$onair = $('<span/>').addClass('JTVOnAir') | |
| .attr('title', 'Live') | |
| .text('ON AIR') | |
| .click(function(){window.open('http://www.justin.tv/' + self.model.channel)}); | |
| this.$onair.appendTo('#' + target); | |
| } | |
| /*********** | |
| * Control * | |
| ***********/ | |
| function JTVOnAir(target, channel) { | |
| var self = this; | |
| // ------ | |
| var model = this.model = new JTVOnAirModel(channel); | |
| var view = this.view = new JTVOnAirView(target, model); | |
| model.update(); | |
| } |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>Justin.tv ON AIR test page</title> | |
| <link rel="stylesheet" type="text/css" href="css/main.css"/> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> | |
| <!--[if IE]> | |
| <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script> | |
| <![endif]--> | |
| <link rel="stylesheet" type="text/css" href="jtv-onair.css"/> | |
| <script src="jtv-onair.js"></script> | |
| <style> | |
| body { | |
| background-color: gray; | |
| text-align: center; | |
| } | |
| .target { | |
| font-size: 12px; | |
| } | |
| </style> | |
| <script> | |
| $(function(){ | |
| $.getJSON('http://api.justin.tv/api/stream/list.json?jsonp=?&limit=1', function(data) { | |
| new JTVOnAir('target-on', data[0].channel.login); | |
| new JTVOnAir('target-off', 'blahblahblah-xyz-foobar'); | |
| }); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <span id="target-on" class="target"></span> | |
| <span id="target-off" class="target"></span> | |
| </body> | |
| </html> |
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