First stab at changing favicon based on build or job state

app/controllers/build.coffee

@@ -23,4 +23,8 @@ Controller = Ember.Controller.extend GithubUrlPropertievs,
     gravatarImage(@get('commit.authorEmail'), 40)
   ).property('commit.authorEmail')
 
+  buildStateDidChange: (->
+    @send('faviconStateDidChange', @get('build.state'))
+  ).observes('build.state')
+
 `export default Controller`

app/controllers/job.coffee

@@ -16,4 +16,8 @@ Controller = Ember.Controller.extend
     githubCommit(@get('repo.slug'), @get('commit.sha'))
   ).property('repo.slug', 'commit.sha')
 
+  jobStateDidChange: (->
+    @send('faviconStateDidChange', @get('job.state'))
+  ).observes('job.state')
+
 `export default Controller`

app/mixins/build-favicon.coffee

@@ -0,0 +1,36 @@
+`import Ember from 'ember'`
+`import { colorForState } from 'travis/utils/helpers'`
+`import FaviconManager from 'travis/utils/favicon-manager'`
+
+Mixin = Ember.Mixin.create
+  actions:
+    faviconStateDidChange: (state) ->
+      if state
+        @setFaviconForState(state)
+      else
+        @setDefault()
+
+  init: ->
+    @faviconManager = new FaviconManager()
+
+    @_super.apply this, arguments
+
+  setFaviconForState: (state) ->
+    color = colorForState(state)
+
+    images = {
+      red: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP4z8DwHwAFAAH/VscvDQAAAABJRU5ErkJggg==',
+      yellow: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP4/5ThPwAHrwLktvrIVgAAAABJRU5ErkJggg==',
+      green: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mOwv276HwAE7wJLzZ3V0gAAAABJRU5ErkJggg==',
+      gray: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mMoqyj7DwAFMAJkMSbkxgAAAABJRU5ErkJggg=='
+    }
+
+    @setFavicon(images[color])
+
+  setDefault: ->
+    @setFavicon('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABmJLR0QAAAAAAAD5Q7t/AAAAB3RJTUUH3wIXCgcI1L+jPwAABp9JREFUWMPtVltsVNcVXfvcO2/PjDPjMcYe8AMbiLERxSkgNaC00JpQqWlIlJcgUaW0aqOWVmr/mihKpEaKKvUjEm2jQh8kEUpaqSFJQ9s4OFEMIcHB4DgYv2KwB/DYnhmP53V9596z+zF+zBiPHdpK/emWRrrnnHXXXrP2PWcf4H8cdCvgT9u2rxLgxyHoboBaBMEOACxZZ0IXJL8pTT7W3Hpu9L8qoPONFqfDpT4Dwo8FkWU5rGTOEuOwjCSeanrgUvI/FtB1ckeN1cp/E4Ia5+bCb88g0qFDzjByDgD+O61Yvd8GgEAEsOQBmc3ua9p7fnA5frHc4qV3v1Rts+K0ENQ4o5mIRjRIyTBTDHejCkeVAmetgrJdVigOgmEwIhEN6ZQBEDWQxfLhhbZt6/8tB9r/UGNfVV1xDuCm6bgOXZcgIpQF7POY0CsZmGlG9XedOScYmJzIAABUVcBbagWAfo4kWoqVo6gDgbXlTxKhKZU0oOsyB17WL4Ao9wMAw5BIpw0IQevJX/LcLZXg4j82lwuinwGArpt5CRYMYwkYCUY2LiE1XtLU+XeJftDzTsvaLyxAVZ1PEJENDJjmArmUec8aI/qhjuSACS0s895ewJhG7lkQqSTU53teayy5ybX8Qc9rjVYqK/klQE8IIhUAJsYzhaUpd8yKyQmSPGv9LFssohWUpCzgyHONozKb3Z6/M9QCdr+rVZA4NDc0TIZkgmnmEjITQiEdpmQwo0iIeUFCAeJxEzY7wW4TIEE+YVGaARQRwMKWSktkMhKaJmEYjJs3StHMCwjOoaQBxKaMnCwBOB0KXA72FZQ7fxCLmU3JlLkkqVBUABYwrDBNBSYrMKUCKcVsAoYiJFQlC0VkQaxDyiyY5XzJkikTIBEoKoBZXpn7NBKaE0PXPbgadiOWtMOUt9Q25sPt0BEMZLBxTRJeVyTLwOWiAnRpnomnnNdPnG2ozBoCpR4X/KVu1NZ44HY5UeJywO1ywGJRoaoKLIoyb7mm65BSIpnWkEprSCTTiE0nEY1NY+BaAr0jXnhd5emjR145UVTAnocu9t//0KOH72huePbevbsUm3Wh75z+6DxOtp3C/ffcjab1NUX/8dPPvwCfrwyPP/JtuFy5E1Iyo7v3c7zR1hFe/BHddA4IUoazhlGQnJnxz/YP0DcwhK7uHgDAlVAYr771Hl56vQ2nP/lsHtvbN4SOM2fR1dObx0kwTBPBMrfa+eKLBd20wIGe9sMlkSg9+9eOwgY2GY2h9Ws7sXXzJmxpzjXF9892YY3fhrrKMhx562Ns27wBFouKQ987iKxhwO1yQUoJMXt+T0amUB/011Vsce8EcGpJAR6Lz2MPmPXRqcK+EfD7EPAv7B7DNDF4dQwHdu+C025BdcVt6B8OYdP6Gty5444lSzMencKX628DMfSiJSBxI+ayWyAlYzqZLlrnSwNXUVXugdOec3PzugAu9A7BMJbewp/2DePzkTFUlrkBicmCnIvBoY+Of/Zu50hjR/cIHvjmXahdW4FrY5O4Egpj5NoYRq5PwG5TsW/7OmxpWAUAiCU0/PHkRUwlZ2CaEm6XA15PCUq9bqRSGUxEonistRkOK7GqW0sb9h2YLipg8NSfHiSV7pqY0r5/7O/d0HQDwXIPaitLUVtRipoKL2xWFeMTk3A6HFBVBddujCFYVQmb1QpmRiKtI5rIIJacgaYb2LZhNUjQbzhtPBf86oHQsg7MxfWzxzslqEUIKgDpU0nE+0ZhWlXELAZYEfCyiuylEFKj46h7eDccFb6b+Ew2dwe3P3Jq8bxaTIBkHFUUasmfy4RjOP/U7zETnXcQlhIHxpILHTNyYRCbDt0Hf8vCTYyZh3/3dt97L/vqPQeig9P5nEUd6Gk/XOJz+IZIiHIAkHoWn/z8KBLDN7BiEMFTXwV7oBRWrwuJ0MQ7U91DGWZ+82Co/8iKAl5eU/+NuBY/s+fXT34nfSX8wmTnZUQuDMHMzCyRi8D8hTrkyMDo5YZnULgNlxRwbHXD7cKitIM5QETL3gSr9++EFo4hfLpnmeQsGXzfwdH+1xevLUn+6I2BXin5pyslFxYVwdZtuP1H++Hf2rBokZhs6kVm/gVL3rpU8qIOzMVLaxoeBim/EkBF/rzN54Z7XRWq7/kKvBtzd002JSY+7oU2Gc8Ki/qXyNWRH+49+ufoSqVZsck/DVjrghs2CpCPhBjf8dufVDv87m+B6etEqCMiksxxMM6BcIITM8eDex6LrMT7/5iLfwE4Jt2JlBtnqwAAACV0RVh0ZGF0ZTpjcmVhdGUAMjAxNS0wMi0yM1QxMDowNzowOCswMTowMEwwWcYAAAAldEVYdGRhdGU6bW9kaWZ5ADIwMTUtMDItMjNUMTA6MDc6MDgrMDE6MDA9beF6AAAAAElFTkSuQmCC')
+
+  setFavicon: (href) ->
+    @faviconManager.setFavicon(href)
+
+`export default Mixin`

app/routes/abstract-builds.coffee

@@ -15,6 +15,8 @@ Route = TravisRoute.extend
   deactivate: ->
     @controllerFor('repo').removeObserver(@get('path'), this, 'contentDidChange')
 
+    @_super.apply(this, arguments)
+
   contentDidChange: ->
     path = @get('path')
     @controllerFor('builds').set('model', @controllerFor('repo').get(path))

app/routes/application.coffee

@@ -1,7 +1,8 @@
 `import TravisRoute from 'travis/routes/basic'`
 `import config from 'travis/config/environment'`
+`import BuildFaviconMixin from 'travis/mixins/build-favicon'`
 
-Route = TravisRoute.extend
+Route = TravisRoute.extend BuildFaviconMixin,
   needsAuth: false
 
   renderTemplate: ->

app/routes/build.coffee

@@ -22,6 +22,7 @@ Route = TravisRoute.extend
     @store.find('build', params.build_id)
 
   deactivate: ->
+    @_super.apply(this, arguments)
     @controllerFor('job').set('job', null)
     @controllerFor('build').set('build', null)
 

app/routes/main-tab.coffee

@@ -17,6 +17,8 @@ Route = TravisRoute.extend
   deactivate: ->
     @controllerFor('repos').removeObserver('firstObject', this, 'currentRepoDidChange')
 
+    @_super.apply(this, arguments)
+
   currentRepoDidChange: ->
     if repo = @controllerFor('repos').get('firstObject')
       @controllerFor('repo').set('repo', repo)

app/routes/pull-requests.coffee

@@ -10,6 +10,7 @@ Route = AbstractBuildsRoute.extend(
     this.controllerFor('builds').set('isPullRequestsList', true)
 
   deactivate: ->
+    @_super.apply(this, arguments)
     this.controllerFor('builds').set('isPullRequestsList', false)
 )
 

app/routes/repo/index.coffee

@@ -16,4 +16,6 @@ Route = TravisRoute.extend
     @controllerFor('build').set('build', null)
     @controllerFor('job').set('job', null)
 
+    @_super.apply(this, arguments)
+
 `export default Route`

app/utils/favicon-manager.coffee

@@ -0,0 +1,38 @@
+`import Ember from 'ember'`
+
+manager = (headTag) ->
+  @headTag = headTag if headTag
+
+  return this
+
+manager.prototype.getHeadTag = ->
+  @headTag || document.getElementsByTagName('head')[0]
+
+manager.prototype.setFavicon = (href) ->
+  link = @getLinkTag()
+
+  if !link
+    oldLink = link
+    link = @createLinkTag()
+    head = @getHeadTag()
+    head.appendChild(link)
+
+  link.setAttribute('href', href)
+
+  if oldLink
+    head.removeChild(oldLink)
+
+manager.prototype.getLinkTag = ->
+  links = document.getElementsByTagName('head')[0].getElementsByTagName('link')
+  if links.length
+    for link in links
+      if link.getAttribute('rel').trim() == 'icon'
+        return link
+
+manager.prototype.createLinkTag = ->
+  link = document.createElement('link')
+  link.setAttribute('rel', 'icon')
+  link.setAttribute('type', 'image/png')
+  document.getElementsByTagName('head')[0].appendChild(link)
+
+`export default manager`