yast/yast-storage-ng

# Copyright (c) [2017-2020] SUSE LLC
#
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, contact SUSE LLC.
#
# To contact SUSE LLC about this file by physical or electronic mail, you may
# find current contact information at www.suse.com.

require "y2partitioner/widgets/pages/tabbed"
require "y2partitioner/widgets/overview_tab"
require "y2partitioner/widgets/used_devices_tab"
require "y2partitioner/widgets/btrfs_filesystems_table"
require "y2partitioner/widgets/btrfs_buttons"

module Y2Partitioner
  module Widgets
    module Pages
      # Page for a BTRFS filesystem
      #
      # This page contains a {FilesystemTab} and a {BtrfsUsedDevicesTab}.
      class Btrfs < Tabbed
        # @return [Y2Storage::Filesystems::Btrfs]
        attr_reader :filesystem

        # Needed for searching a device page, see {OverviewTreePager#device_page}
        alias_method :device, :filesystem

        # Constructor
        #
        # @param filesystem [Y2Storage::Filesystems::Btrfs]
        # @param pager [CWM::TreePager]
        def initialize(filesystem, pager)
          super()
          textdomain "storage"

          @filesystem = filesystem
          @pager = pager

          self.widget_id = "btrfs:" + filesystem.sid.to_s
        end

        # @macro seeAbstractWidget
        def label
          filesystem.blk_device_basename
        end

        private

        # @return [CWM::TreePager]
        attr_reader :pager

        # Tabs to show the filesystem data
        #
        # There are two tabs: one for the filesystem info and another one with the devices
        # used by the filesystem.
        #
        # @return [Array<CWM::Tab>]
        def calculate_tabs
          [
            FilesystemTab.new(filesystem, pager),
            BtrfsUsedDevicesTab.new(filesystem, pager)
          ]
        end

        # @return [String]
        def section
          BtrfsFilesystems.label
        end
      end

      # A tab to represent the Btrfs filesystem
      class FilesystemTab < OverviewTab
        private

        # @return [BtrfsFilesystemsTable]
        def calculate_table(buttons_set)
          BtrfsFilesystemsTable.new(devices, @pager, buttons_set)
        end
      end

      # A Tab for the used devices of a Btrfs
      class BtrfsUsedDevicesTab < UsedDevicesTab
        # @see UsedDevicesTab#used_devices
        def used_devices
          device.plain_blk_devices
        end

        # @see UsedDevicesTab#buttons
        def buttons
          Right(BtrfsDevicesEditButton.new(device: device))
        end
      end
    end
  end
end