Don't allow voting while the thread is closed

When someone closes thread there is still option
to add vote which cause error when click on add
vote button. User shouldn't be able to add vote
while the thread is closed.

TNL-152

common/static/coffee/spec/discussion/discussion_spec_helper.coffee

@@ -470,12 +470,15 @@ browser and pasting the output.  When that file changes, this one should be rege
 
 <script type="text/template" id="forum-action-vote">
     <li class="actions-item">
+        <span aria-hidden="true" class="display-vote" style="display: none;">
+          <span class="vote-count"></span>
+        </span>
         <a href="#" class="action-button action-vote" role="checkbox" aria-checked="false">
             <span class="sr">Vote</span>
             <span class="sr js-sr-vote-count"></span>
 
             <span class="action-label" aria-hidden="true">
-              <span class="js-visual-vote-count"></span>
+              <span class="vote-count"></span>
             </span>
 
             <span class="action-icon" aria-hidden="true">

common/static/coffee/spec/discussion/view/discussion_thread_view_spec.coffee

@@ -43,7 +43,8 @@ describe "DiscussionThreadView", ->
             expect(view.$el.find(".load-response-button").length).toEqual(0)
 
     describe "closed and open Threads", ->
-        checkCommentForm = (originallyClosed, mode) ->
+
+        createDiscussionThreadView = (originallyClosed, mode) ->
             threadData = DiscussionViewSpecHelper.makeThreadWithProps({closed: originallyClosed})
             thread = new Thread(threadData)
             discussion = new Discussion(thread)
@@ -60,18 +61,36 @@ describe "DiscussionThreadView", ->
               (model, updates, safeAjaxParams, errorMsg) ->
                 model.set(updates)
             )
+            view
+
+        checkCommentForm = (originallyClosed, mode) ->
+            view = createDiscussionThreadView(originallyClosed, mode)
             expect(view.$('.comment-form').closest('li').is(":visible")).toBe(not originallyClosed)
             expect(view.$(".discussion-reply-new").is(":visible")).toBe(not originallyClosed)
             view.$(".action-close").click()
             expect(view.$('.comment-form').closest('li').is(":visible")).toBe(originallyClosed)
             expect(view.$(".discussion-reply-new").is(":visible")).toBe(originallyClosed)
 
+        checkVoteDisplay = (originallyClosed, mode) ->
+            view = createDiscussionThreadView(originallyClosed, mode)
+            expect(view.$('.action-vote').is(":visible")).toBe(not originallyClosed)
+            expect(view.$('.display-vote').is(":visible")).toBe(originallyClosed)
+            view.$(".action-close").click()
+            expect(view.$('.action-vote').is(":visible")).toBe(originallyClosed)
+            expect(view.$('.display-vote').is(":visible")).toBe(not originallyClosed)
+
         _.each(["tab", "inline"], (mode) =>
                 it 'Test that in #{mode} mode when a closed thread is opened the comment form is displayed', ->
                         checkCommentForm(true, mode)
 
                 it 'Test that in #{mode} mode when a open thread is closed the comment form is hidden', ->
                         checkCommentForm(false, mode)
+
+                it 'Test that in #{mode} mode when a closed thread is opened the vote button is displayed and vote count is hidden', ->
+                        checkVoteDisplay(true, mode)
+
+                it 'Test that in #{mode} mode when a open thread is closed the vote button is hidden and vote count is displayed', ->
+                        checkVoteDisplay(false, mode)
         )
 
     describe "tab mode", ->

common/static/coffee/spec/discussion/view/discussion_view_spec_helper.coffee

@@ -21,7 +21,7 @@ class @DiscussionViewSpecHelper
         button = view.$el.find(".action-vote")
         expect(button.hasClass("is-checked")).toBe(user.voted(model))
         expect(button.attr("aria-checked")).toEqual(user.voted(model).toString())
-        expect(button.find(".js-visual-vote-count").text()).toMatch("^#{model.get('votes').up_count} Votes?$")
+        expect(button.find(".vote-count").text()).toMatch("^#{model.get('votes').up_count} Votes?$")
         expect(button.find(".sr.js-sr-vote-count").text()).toMatch("^currently #{model.get('votes').up_count} votes?$")
 
     @checkRenderVote = (view, model) ->

common/static/coffee/src/discussion/views/discussion_content_view.coffee

@@ -118,13 +118,13 @@ if Backbone?
             true
           )
         )
-        button.find(".js-visual-vote-count").html(
-          interpolate(
+        votesHtml = interpolate(
                       ngettext("%(numVotes)s Vote", "%(numVotes)s Votes", numVotes),
                       {numVotes: numVotes},
                       true
                     )
-        )
+        button.find(".vote-count").html(votesHtml)
+        @$el.find('.display-vote .vote-count').html(votesHtml)
 
       pinned: (pinned) ->
         @updateButtonState(".action-pin", pinned)

common/static/coffee/src/discussion/views/discussion_thread_view.coffee

@@ -77,6 +77,9 @@ if Backbone?
       closed: (closed) ->
         @$(".discussion-reply-new").toggle(not closed)
         @$('.comment-form').closest('li').toggle(not closed)
+        @$(".action-vote").toggle(not closed)
+        @$(".display-vote").toggle(closed)
+#        @$(".display-vote").toggle(closed)
         @renderAddResponseButton()
     })
 
@@ -309,6 +312,7 @@ if Backbone?
     closeEditView: (event) =>
       @createShowView()
       @renderShowView()
+      @renderAttrs()
       # next call is necessary to re-render the post action controls after
       # submitting or cancelling a thread edit in inline mode.
       @$el.find(".post-extended-content").show()

lms/templates/discussion/_underscore_templates.html

@@ -518,13 +518,16 @@ ${primaryAction("follow", "star", _("Follow"), _("Follow"), _("Unfollow"))}
 
 <script type="text/template" id="forum-action-vote">
     <li class="actions-item">
+        <span aria-hidden="true" class="display-vote" >
+          <span class="vote-count"></span>
+        </span>
         <a href="#" class="action-button action-vote" role="checkbox" aria-checked="false">
             ## Vote counts are populated by JS
             <span class="sr">${_("Vote")}</span>
             <span class="sr js-sr-vote-count"></span>
 
             <span class="action-label" aria-hidden="true">
-              <span class="js-visual-vote-count"></span>
+              <span class="vote-count"></span>
             </span>
 
             <span class="action-icon" aria-hidden="true">