Big refactoring of issues filters

* Squash project users selectbox and users selectbox into one class
* Move from API autocomplete to GitLab internal one
* Smarter filter for project/group/all issues
* Use selectbox with searchbox for assignee/author/milestone/label
* Switch to ajax filter for issue author/assignee

4 files changed, 45 insertions, 11 deletions

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 38b5fc4a011..3f3509bb18a 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -275,7 +275,9 @@ module ApplicationHelper
     'https://' + promo_host
   end
 
-  def page_filter_path(options={})
+  def page_filter_path(options = {})
+    without = options.delete(:without)
+
     exist_opts = {
       state: params[:state],
       scope: params[:scope],
@@ -288,6 +290,12 @@ module ApplicationHelper
 
     options = exist_opts.merge(options)
 
+    if without.present?
+      without.each do |key|
+        options.delete(key)
+      end
+    end
+
     path = request.path
     path << "?#{options.to_param}"
     path
diff --git a/app/helpers/labels_helper.rb b/app/helpers/labels_helper.rb
index 49063491abf..aa98ead43f1 100644
--- a/app/helpers/labels_helper.rb
+++ b/app/helpers/labels_helper.rb
@@ -47,4 +47,9 @@ module LabelsHelper
       "#FFF"
     end
   end
+
+  def project_labels_options(project)
+    options_for_select([['Any', nil]]) +
+      options_from_collection_for_select(project.labels, 'name', 'name', params[:label_name])
+  end
 end
diff --git a/app/helpers/milestones_helper.rb b/app/helpers/milestones_helper.rb
index 59fdc0d49cc..e1dec3ec628 100644
--- a/app/helpers/milestones_helper.rb
+++ b/app/helpers/milestones_helper.rb
@@ -19,4 +19,16 @@ module MilestonesHelper
       content_tag :div, nil, options
     end
   end
+
+  def projects_milestones_options
+    milestones =
+      if @project
+        @project.milestones
+      else
+        Milestone.where(project_id: @projects)
+      end.active
+
+    options_for_select([['Any', nil]]) +
+      options_from_collection_for_select(milestones, 'id', 'title', params[:milestone_id])
+  end
 end
diff --git a/app/helpers/selects_helper.rb b/app/helpers/selects_helper.rb
index 796d805f219..457cd3fa46b 100644
--- a/app/helpers/selects_helper.rb
+++ b/app/helpers/selects_helper.rb
@@ -4,18 +4,27 @@ module SelectsHelper
     css_class << "multiselect " if opts[:multiple]
     css_class << (opts[:class] || '')
     value = opts[:selected] || ''
+    placeholder = opts[:placeholder] || 'Search for a user'
 
-    hidden_field_tag(id, value, class: css_class)
-  end
+    null_user = opts[:null_user] || false
+    any_user = opts[:any_user] || false
 
-  def project_users_select_tag(id, opts = {})
-    css_class = "ajax-project-users-select "
-    css_class << "multiselect " if opts[:multiple]
-    css_class << (opts[:class] || '')
-    value = opts[:selected] || ''
-    placeholder = opts[:placeholder] || 'Select user'
-    project_id = opts[:project_id] || @project.id
-    hidden_field_tag(id, value, class: css_class, 'data-placeholder' => placeholder, 'data-project-id' => project_id)
+    html = {
+      class: css_class,
+      'data-placeholder' => placeholder,
+      'data-null-user' => null_user,
+      'data-any-user' => any_user,
+    }
+
+    unless opts[:scope] == :all
+      if @project
+        html['data-project-id'] = @project.id
+      elsif @group
+        html['data-group-id'] = @group.id
+      end
+    end
+
+    hidden_field_tag(id, value, html)
   end
 
   def groups_select_tag(id, opts = {})