Re: [GITGRUB] New menu interface (implementation)

[Bean]

Hi,

Update:

Add sub menu support, generate widgets dynamically using menu entries.

Now grub.cfg should look like this:

menuentry "AAA" {
  set root=(hd0,1)
  chainloader +1
}

menuentry "BBB" --class ubuntu {
  true
}

. /menu/menu.cfg

The menu have three items, AAA, BBB and Tools, which is a menu
appended in menu.cfg.

Tools are a submenu, its content is defined using menu section:

menu {
  Tools {
    "Toggle Mode" {
      command = menu_toggle_mode
    }

    "Terminal" {
      command = "menu_popup term_window"
    }

    "Change Theme" {
      Default {
        command="load_config /menu/blue.txt\nmenu_refresh"
      }

      Green {
        command="load_config /menu/green.txt\nmenu_refresh"
      }

      White {
        command="load_config /menu/white.txt\nmenu_refresh"
      }
    }

    "Layout Demo" {
      command = "menu_popup layout_test"
    }

    Halt {
      command = "halt"
    }

    Reboot {
      command = "reboot"
    }
  }
}

merge_config command would append this with user defined menu items.

The screen section is very simple now:

screen {
  panel {
    extend = 1
    valign = center
    halign = center

    panel {
      class = frame
      id = __menu__
    }
  }
}

command menu_create would scan screen for id __menu__, and add widgets
according to the menu content. The generated widget entry looks like
this:

panel
{
  class = select
  command = COMMAND
  image { class =  CLASS }
  text { text = TITLE }
}

The submenu is this:

panel
{
  class = frame
  command = "menu_popup -r menu_tree N"
}

-- 
Bean

gitgrub home: http://github.com/grub/grub/
my fork page: http://github.com/bean123/grub/