tab_bar_controller.rb in ProMotion-2.3.0

- old
+ new

@@ -1,8 +1,10 @@
 module ProMotion
   class TabBarController < UITabBarController
 
+    attr_accessor :pm_tab_delegate
+
     def self.new(*screens)
       tab_bar_controller = alloc.init
 
       screens = screens.flatten.map { |s| s.respond_to?(:new) ? s.new : s } # Initialize any classes
 
@@ -13,10 +15,11 @@
         tag_index += 1
         s.navigationController || s
       end
 
       tab_bar_controller.viewControllers = view_controllers
+      tab_bar_controller.delegate = tab_bar_controller
       tab_bar_controller
     end
 
     def open_tab(tab)
       if tab.is_a? String
@@ -25,10 +28,13 @@
         selected_tab_vc = viewControllers[tab]
       end
 
       if selected_tab_vc
         self.selectedViewController = selected_tab_vc
+        on_tab_selected_try(selected_tab_vc)
+
+        selected_tab_vc
       else
         PM.logger.error "Unable to open tab #{tab.to_s} -- not found."
         nil
       end
     end
@@ -36,10 +42,13 @@
     def find_tab(tab_title)
       viewControllers.find { |vc| vc.tabBarItem.title == tab_title }
     end
 
     # Cocoa touch methods below
+    def tabBarController(tbc, didSelectViewController: vc)
+      on_tab_selected_try(vc)
+    end
 
     def shouldAutorotate
       current_view_controller_try(:shouldAutorotate)
     end
 
@@ -50,9 +59,15 @@
     def preferredInterfaceOrientationForPresentation
       current_view_controller_try(:preferredInterfaceOrientationForPresentation)
     end
 
     private
+
+    def on_tab_selected_try(vc)
+      if pm_tab_delegate && pm_tab_delegate.respond_to?(:weakref_alive?) && pm_tab_delegate.weakref_alive? && pm_tab_delegate.respond_to?("on_tab_selected:")
+        pm_tab_delegate.send(:on_tab_selected, vc)
+      end
+    end
 
     def current_view_controller
       selectedViewController || viewControllers.first
     end
 