Move concurrent build limit flow into a component

app/components/limit-concurrent-builds.coffee

@@ -0,0 +1,37 @@
+`import Ember from 'ember'`
+
+LimitConcurrentBuildsComponent = Ember.Component.extend
+  description: (->
+    description = "Limit concurrent jobs"
+    if @get('enabled')
+      description += "  "
+    description
+  ).property('enabled')
+
+
+  actions:
+    toggle: ->
+      unless @get('enabled')
+        return if @get('value') == 0
+        return if @get('isSaving')
+        @set('isSaving', true)
+
+        savingFinished = =>
+          @set('isSaving', false)
+
+        @get('repo').saveSettings(maximum_number_of_builds: 0).then(savingFinished, savingFinished)
+        @set('value', 0)
+
+    limitChanged: ->
+      repo = @get('repo')
+      limit = parseInt(@get('value'))
+      if limit
+        @set('isSaving', true)
+        savingFinished = =>
+          @set('isSaving', false)
+
+        repo.saveSettings(maximum_number_of_builds: limit).
+          then(savingFinished, savingFinished)
+
+
+`export default LimitConcurrentBuildsComponent`

app/controllers/settings.coffee

@@ -1,13 +1,6 @@
 `import Ember from 'ember'`
 
 SettingsController = Ember.Controller.extend
-  concurrentBuildsLimitDescription: (->
-    description = "Limit concurrent jobs"
-    if @get('concurrentBuildsLimit')
-      description += "  "
-    description
-  ).property('concurrentBuildsLimit')
-
   envVars: Ember.computed.filterBy('model.envVars', 'isNew', false)
 
   actions:
@@ -17,26 +10,4 @@ SettingsController = Ember.Controller.extend
     sshKeyDeleted: ->
       @set('model.customSshKey', null)
 
-    concurrentBuildsLimitChanged: ->
-      unless @get('concurrentBuildsLimit')
-        return if @get('isSaving')
-        @set('isSaving', true)
-
-        savingFinished = =>
-          @set('isSaving', false)
-
-        @get('repo').saveSettings(maximum_number_of_builds: 0).then(savingFinished, savingFinished)
-        @set('model.settings.maximum_number_of_builds', 0)
-
-    concurrentBuildsLimitValueChanged: ->
-      repo = @get('repo')
-      concurrentBuildsLimit = parseInt(@get('model.settings.maximum_number_of_builds'))
-      if concurrentBuildsLimit
-        @set('isSaving', true)
-        savingFinished = =>
-          @set('isSaving', false)
-
-        repo.saveSettings(maximum_number_of_builds: concurrentBuildsLimit).
-          then(savingFinished, savingFinished)
-
 `export default SettingsController`

app/templates/components/limit-concurrent-builds.hbs

@@ -0,0 +1,7 @@
+{{travis-switch active=enabled description=description action="toggle"}}
+{{#if enabled}}
+  {{input pattern="/^[0-9]+$/" value=value on="key-up" action="limitChanged"}}
+{{/if}}
+{{#if isSaving}}
+  {{loading-indicator}}
+{{/if}}

app/templates/settings.hbs

@@ -5,15 +5,7 @@
 
     <ul class="settings-list--columns">
       <li>{{settings-switch active=model.settings.builds_only_with_travis_yml repo=repo description="Build only if .travis.yml is present" key="builds_only_with_travis_yml"}}</li>
-      <li>{{travis-switch active=concurrentBuildsLimit description=concurrentBuildsLimitDescription action="concurrentBuildsLimitChanged"}}
-
-        {{#if concurrentBuildsLimit}}
-          {{input pattern="/^[0-9]+$/" value=model.settings.maximum_number_of_builds on="key-up" action="concurrentBuildsLimitValueChanged" class="settings-concurrent"}}
-        {{/if}}
-        {{#if isSaving}}
-          {{loading-indicator inline=true}}
-        {{/if}}
-      </li>
+      <li>{{limit-concurrent-builds value=model.settings.maximum_number_of_builds enabled=concurrentBuildsLimit repo=repo}}</li>
       <li>{{settings-switch active=model.settings.build_pushes repo=repo description="Build pushes" key="build_pushes"}}</li>
       <li>{{settings-switch active=model.settings.build_pull_requests repo=repo description="Build pull requests" key="build_pull_requests"}}</li>
     </ul>