Add option to automatically download documentation (#886)

Add option to automatically download documentation

assets/javascripts/app/app.coffee

@@ -140,7 +140,10 @@
       @docs.sort()
       @initDoc(doc)
       @saveDocs()
-      _onSuccess()
+      if app.settings.get('autoInstall')
+        doc.install(_onSuccess, onError)
+      else
+        _onSuccess()
       return
 
     doc.load onSuccess, onError, writeCache: true

assets/javascripts/app/settings.coffee

@@ -11,6 +11,7 @@ class app.Settings
     'layout'
     'size'
     'tips'
+    'autoInstall'
   ]
 
   INTERNAL_KEYS = [

assets/javascripts/models/doc.coffee

@@ -142,4 +142,6 @@ class app.models.Doc extends app.Model
     return
 
   isOutdated: (status) ->
-    status and status.installed and @mtime isnt status.mtime
+    return false if not status
+    isInstalled = status.installed or app.settings.get('autoInstall')
+    isInstalled and @mtime isnt status.mtime

assets/javascripts/templates/pages/settings_tmpl.coffee

@@ -15,6 +15,10 @@ app.templates.settingsPage = (settings) -> """
         <input type="checkbox" form="settings" name="layout" value="_sidebar-hidden"#{if settings['_sidebar-hidden'] then ' checked' else ''}>Automatically hide and show the sidebar
         <small>Tip: drag the edge of the sidebar to resize it.</small>
       </label>
+      <label class="_settings-label">
+        <input type="checkbox" form="settings" name="autoInstall" value="_auto-install"#{if settings.autoInstall then ' checked' else ''}>Automatically download documentation for offline use
+        <small>Only enable this when bandwidth isn't a concern to you.</small>
+      </label>
       <label class="_settings-label">
         <input type="checkbox" form="settings" name="analyticsConsent"#{if settings.analyticsConsent then ' checked' else ''}>Enable tracking cookies
         <small>With this checked, we enable Google Analytics and Gauges to collect anonymous traffic information.</small>

assets/javascripts/views/content/settings_page.coffee

@@ -14,6 +14,7 @@ class app.views.SettingsPage extends app.View
     settings.dark = app.settings.get('dark')
     settings.smoothScroll = !app.settings.get('fastScroll')
     settings.arrowScroll = app.settings.get('arrowScroll')
+    settings.autoInstall = app.settings.get('autoInstall')
     settings.analyticsConsent = app.settings.get('analyticsConsent')
     settings[layout] = app.settings.hasLayout(layout) for layout in app.settings.LAYOUTS
     settings