Improve keyboard navigation on mobile

Rel: #638

assets/javascripts/views/layout/mobile.coffee

@@ -7,6 +7,9 @@ class app.views.Mobile extends app.View
     sidebar:   '._sidebar'
     docPicker: '._settings ._sidebar'
 
+  @shortcuts:
+    escape: 'onEscape'
+
   @routes:
     after: 'afterRoute'
 
@@ -129,6 +132,9 @@ class app.views.Mobile extends app.View
   onTapSearch: =>
     window.scrollTo 0, 0
 
+  onEscape: =>
+    @hideSidebar()
+
   afterRoute: (route) =>
     @hideSidebar()
 

assets/javascripts/views/sidebar/doc_list.coffee

@@ -18,7 +18,7 @@ class app.views.DocList extends app.View
   init: ->
     @lists = {}
 
-    @addSubview @listFocus  = new app.views.ListFocus @el unless app.isMobile()
+    @addSubview @listFocus  = new app.views.ListFocus @el
     @addSubview @listFold   = new app.views.ListFold @el
     @addSubview @listSelect = new app.views.ListSelect @el
 

assets/javascripts/views/sidebar/results.coffee

@@ -15,7 +15,7 @@ class app.views.Results extends app.View
     return
 
   init: ->
-    @addSubview @listFocus  = new app.views.ListFocus @el unless app.isMobile()
+    @addSubview @listFocus  = new app.views.ListFocus @el
     @addSubview @listSelect = new app.views.ListSelect @el
 
     @search
@@ -42,7 +42,7 @@ class app.views.Results extends app.View
     return
 
   focusFirst: ->
-    @listFocus?.focusOnNextFrame @el.firstElementChild
+    @listFocus?.focusOnNextFrame @el.firstElementChild unless app.isMobile()
     return
 
   openFirst: ->