Prevent sending double restart request

When requeue icon was clicked 2 times it was sometimes the case that we
sent 2 requests. This commit prevents that and also adds a little nice
indicator instead of restart button while we're sending the request.

assets/scripts/app/templates/repos/show/actions.hbs

@@ -14,14 +14,22 @@
     {{/if}}
     {{#if view.displayRequeueBuild}}
       <li class="icon" title="Restart Build">
-        <a href="#" {{action "requeueBuild" target="view"}}
-          {{bind-attr class="view.canRequeueBuild::disabled"}}><img class="icon" src="/images/icons/repeat.png" width="20"></a>
+        {{#if view.requeueing}}
+          <span class="icon loading"></span>
+        {{else}}
+          <a href="#" {{action "requeueBuild" target="view"}}
+            {{bind-attr class="view.canRequeueBuild::disabled"}}><img class="icon" src="/images/icons/repeat.png" width="20"></a>
+        {{/if}}
       </li>
     {{/if}}
     {{#if view.displayRequeueJob}}
       <li class="icon" title="Restart Job">
-        <a href="#" {{action "requeueJob" target="view"}}
-          {{bind-attr class="view.canRequeueJob::disabled"}}><img src="/images/icons/repeat.png" width="20"></a>
+        {{#if view.requeueing}}
+          <span class="icon loading"></span>
+        {{else}}
+          <a href="#" {{action "requeueJob" target="view"}}
+            {{bind-attr class="view.canRequeueJob::disabled"}}><img src="/images/icons/repeat.png" width="20"></a>
+        {{/if}}
       </li>
     {{/if}}
     {{!TODO: for some reason showDownloadLog, which just delegates to jobIdForLog

assets/scripts/app/views/repo/show.coffee

@@ -154,9 +154,6 @@ Travis.reopen
     tabBinding: 'controller.tab'
     currentUserBinding: 'controller.currentUser'
 
-    requeue: ->
-      @get('build').requeue()
-
     cancelBuild: ->
       if @get('canCancelBuild')
         Travis.flash(notice: 'Build cancelation has been scheduled.')
@@ -256,12 +253,20 @@ Travis.reopen
       @popup('code-climate')
       event.stopPropagation() if event?
 
+    requeueFinished: ->
+      @set('requeueing', false)
+
+    requeue: (thing) ->
+      return if @get('requeueing')
+      @set('requeueing', true)
+      thing.requeue().then(this.requeueFinished.bind(this), this.requeueFinished.bind(this))
+
     requeueBuild: ->
       if @get('canRequeueBuild')
-        @get('build').requeue()
+        @requeue @get('build')
 
     requeueJob: ->
       if @get('canRequeueJob')
-        @get('job').requeue()
+        @requeue @get('job')
 
 

assets/styles/main/tools.sass

@@ -61,6 +61,19 @@
   text-align: right
 
   li.icon
+    span.loading
+      display: inline-block
+      height: 20px
+      position: relative
+      top: 1px
+      cursor: pointer
+      color: #fef4e9
+      border: solid 1px #d6d6d6
+      background-color: #f4f4f4
+      text-align: center
+      margin-left: 5px
+      background-position: center center
+
     a
       display: inline-block
       width: 25px