struct Efl.Ui.Stack_Event_Loaded {
   [[Information of loaded event.]]
   content: Efl.Canvas.Object; [[Loaded content.]]
}

struct Efl.Ui.Stack_Event_Unloaded {
   [[Information of unloaded event.]]
   content: Efl.Canvas.Object; [[Unloaded content.]]
}

struct Efl.Ui.Stack_Event_Activated {
   [[Information of activated event.]]
   content: Efl.Canvas.Object; [[Activated content.]]
}

struct Efl.Ui.Stack_Event_Deactivated {
   [[Information of deactivated event.]]
   content: Efl.Canvas.Object; [[Deactivated content.]]
}

class @beta Efl.Ui.Stack extends Efl.Ui.Layout_Base
{
   [[Stack widget.

     Stack widget arranges objects in stack structure by pushing and poping them.
   ]]
   methods {
      push {
         [[Pushes a new object to the top of the stack and shows it.
         ]]
         params {
            @in content: Efl.Canvas.Object;
               [[The pushed object which becomes the top content of the stack.]]
         }
      }
      pop {
         [[Pops the top content from the stack and deletes it.
         ]]
         return: Efl.Canvas.Object;
            [[The top content which is removed from the stack.]]
      }
      insert_before {
         [[Inserts an object before the given base content in the stack.
         ]]
         params {
            @in base_content: Efl.Canvas.Object;
               [[$content is inserted before this $base_content.]]
            @in content: Efl.Canvas.Object;
               [[The inserted object in the stack.]]
         }
      }
      insert_after {
         [[Inserts an object after the given base content in the stack.
         ]]
         params {
            @in base_content: Efl.Canvas.Object;
               [[$content is inserted after this $base_content.]]
            @in content: Efl.Canvas.Object;
               [[The inserted object in the stack.]]
         }
      }
      insert_at {
         [[Inserts an object at the given place in the stack.
         ]]
         params {
            @in index: int;
               [[The index of the inserted object in the stack.
                 $index begins from bottom to top of the stack.
                 $index of the bottom content is 0.
               ]]
            @in content: Efl.Canvas.Object;
               [[The inserted object in the stack.]]
         }
      }
      remove {
         [[Removes the given content in the stack.
         ]]
         params {
            @in content: Efl.Canvas.Object;
               [[The removed content from the stack.]]
         }
      }
      remove_at {
         [[Removes a content matched to the given index in the stack.
         ]]
         params {
            @in index: int;
               [[The index of the removed object in the stack.
                 $index begins from bottom to top of the stack.
                 $index of the bottom content is 0.
               ]]
         }
      }
      index_get {
         [[Gets the index of the given content in the stack.
           The index begins from bottom to top of the stack.
           The index of the bottom content is 0.
         ]]
         return: int;
            [[The index of $content in the stack.]]
         params {
            @in content: Efl.Canvas.Object;
               [[The content matched to the index to be returned in the stack.]]
         }
      }
      content_get {
         [[Gets the content matched to the given index in the stack.
         ]]
         return: Efl.Canvas.Object;
            [[The content matched to $index in the stack.]]
         params {
            @in index: int;
               [[The index of the content to be returned in the stack.]]
         }
      }
      top {
         [[Gets the top content in the stack.
         ]]
         return: Efl.Canvas.Object; [[The top content in the stack.]]
      }
   }
   implements {
      Efl.Object.constructor;
   }
   events {
      loaded: Efl.Ui.Stack_Event_Loaded;      [[Called when content is loaded right before transition.]]
      unloaded: Efl.Ui.Stack_Event_Unloaded;    [[Called when content is unloaded right after being deactivated.]]
      activated: Efl.Ui.Stack_Event_Activated;   [[Called when content is activated right after transition.]]
      deactivated: Efl.Ui.Stack_Event_Deactivated; [[Called when content is deactivated right after transition.]]
   }
}