Use js-requires-input where appropriate

app/views/profiles/keys/_form.html.haml

 %div
-  = form_for [:profile, @key], html: { class: 'form-horizontal' } do |f|
+  = form_for [:profile, @key], html: { class: 'form-horizontal js-requires-input' } do |f|
     - if @key.errors.any?
       .alert.alert-danger
         %ul
@@ -9,12 +9,11 @@
     .form-group
       = f.label :key, class: 'control-label'
       .col-sm-10
-        = f.text_area :key, class: "form-control", rows: 8
+        = f.text_area :key, class: "form-control", rows: 8, autofocus: true, required: true
     .form-group
       = f.label :title, class: 'control-label'
-      .col-sm-10= f.text_field :title, class: "form-control"
+      .col-sm-10= f.text_field :title, class: "form-control", required: true
 
     .form-actions
       = f.submit 'Add key', class: "btn btn-create"
       = link_to "Cancel", profile_keys_path, class: "btn btn-cancel"
-

app/views/projects/blob/_new_dir.html.haml

@@ -5,7 +5,7 @@
         %a.close{href: "#", "data-dismiss" => "modal"} ×
         %h3.page-title Create New Directory
       .modal-body
-        = form_tag namespace_project_create_dir_path(@project.namespace, @project, @id), method: :post, remote: false, class: 'form-horizontal js-create-dir-form' do
+        = form_tag namespace_project_create_dir_path(@project.namespace, @project, @id), method: :post, remote: false, class: 'form-horizontal js-create-dir-form js-requires-input' do
           .form-group
             = label_tag :dir_name, 'Directory name', class: 'control-label'
             .col-sm-10
@@ -18,5 +18,4 @@
             = link_to "Cancel", '#', class: "btn btn-cancel", "data-dismiss" => "modal"
 
 :javascript
-  disableButtonIfAnyEmptyField($(".js-create-dir-form"), ".form-control", ".btn-create");
   new NewCommitForm($('.js-create-dir-form'))

app/views/projects/deploy_keys/_form.html.haml

 %div
-  = form_for [@project.namespace.becomes(Namespace), @project, @key], url: namespace_project_deploy_keys_path, html: { class: 'deploy-key-form form-horizontal' } do |f|
+  = form_for [@project.namespace.becomes(Namespace), @project, @key], url: namespace_project_deploy_keys_path, html: { class: 'deploy-key-form form-horizontal js-requires-input' } do |f|
     -if @key.errors.any?
       .alert.alert-danger
         %ul
@@ -8,16 +8,15 @@
 
     .form-group
       = f.label :title, class: "control-label"
-      .col-sm-10= f.text_field :title, class: 'form-control'
+      .col-sm-10= f.text_field :title, class: 'form-control', autofocus: true, required: true
     .form-group
       = f.label :key, class: "control-label"
       .col-sm-10
         %p.light
           Paste a machine public key here. Read more about how to generate it
           = link_to "here", help_page_path("ssh", "README")
-        = f.text_area :key, class: "form-control thin_area", rows: 5
+        = f.text_area :key, class: "form-control thin_area", rows: 5, required: true
 
     .form-actions
       = f.submit 'Create Deploy Key', class: "btn-create btn"
       = link_to "Cancel", namespace_project_deploy_keys_path(@project.namespace, @project), class: "btn btn-cancel"
-

app/views/projects/tags/new.html.haml

@@ -10,7 +10,7 @@
   New Tag
 %hr
 
-= form_tag namespace_project_tags_path, method: :post, id: "new-tag-form", class: "form-horizontal gfm-form tag-form" do
+= form_tag namespace_project_tags_path, method: :post, id: "new-tag-form", class: "form-horizontal gfm-form tag-form js-requires-input" do
   .form-group
     = label_tag :tag_name, nil, class: 'control-label'
     .col-sm-10
@@ -38,7 +38,6 @@
     = link_to 'Cancel', namespace_project_tags_path(@project.namespace, @project), class: 'btn btn-cancel'
 
 :javascript
-  disableButtonIfAnyEmptyField($("#new-tag-form"), ".form-control", ".btn-create");
   var availableTags = #{@project.repository.ref_names.to_json};
 
   $("#ref").autocomplete({

app/views/shared/_new_commit_form.html.haml

@@ -4,7 +4,7 @@
   .form-group.branch
     = label_tag 'new_branch', 'Target branch', class: 'control-label'
     .col-sm-10
-      = text_field_tag 'new_branch', @new_branch || @ref, class: "form-control js-new-branch"
+      = text_field_tag 'new_branch', @new_branch || @ref, required: true, class: "form-control js-new-branch"
 
   .form-group.js-create-merge-request-form-group
     .col-sm-offset-2.col-sm-10

app/views/shared/snippets/_form.html.haml

 .snippet-form-holder
-  = form_for @snippet, url: url, html: { class: "form-horizontal snippet-form" } do |f|
+  = form_for @snippet, url: url, html: { class: "form-horizontal snippet-form js-requires-input" } do |f|
     - if @snippet.errors.any?
       .alert.alert-danger
         %ul