Add visibility parameter in share page (#13023)

* Add visibility parameter in share page

* Restrict to default privacy

app/helpers/application_helper.rb

@@ -136,6 +136,11 @@ module ApplicationHelper
       text: [params[:title], params[:text], params[:url]].compact.join(' '),
     }
 
+    permit_visibilities = %w(public unlisted private direct)
+    default_privacy     = current_account&.user&.setting_default_privacy
+    permit_visibilities.shift(permit_visibilities.index(default_privacy) + 1) if default_privacy.present?
+    state_params[:visibility] = params[:visibility] if permit_visibilities.include? params[:visibility]
+
     if user_signed_in?
       state_params[:settings]          = state_params[:settings].merge(Web::Setting.find_by(user: current_user)&.data || {})
       state_params[:push_subscription] = current_account.user.web_push_subscription(current_session)

app/presenters/initial_state_presenter.rb

@@ -2,5 +2,5 @@
 
 class InitialStatePresenter < ActiveModelSerializers::Model
   attributes :settings, :push_subscription, :token,
-             :current_account, :admin, :text
+             :current_account, :admin, :text, :visibility
 end

app/serializers/initial_state_serializer.rb

@@ -55,7 +55,7 @@ class InitialStateSerializer < ActiveModel::Serializer
 
     if object.current_account
       store[:me]                = object.current_account.id.to_s
-      store[:default_privacy]   = object.current_account.user.setting_default_privacy
+      store[:default_privacy]   = object.visibility || object.current_account.user.setting_default_privacy
       store[:default_sensitive] = object.current_account.user.setting_default_sensitive
     end