warehouse/data/ui/downgrade.blp

using Gtk 4.0;
using Adw 1;

template $DowngradeWindow: Adw.Dialog {
  content-width: 500;
  content-height: 450;

  Adw.ToolbarView main_toolbar_view {
    [top]
    Adw.HeaderBar header_bar {
    }

    content: Adw.ToastOverlay toast_overlay {
      Overlay {
        [overlay]
        Button apply_button {
          visible: false;
          valign: end;
          halign: center;
          margin-bottom: 12;
          sensitive: false;
          Adw.ButtonContent {
            label: _("Downgrade");
            icon-name: "arrow-turn-left-down-symbolic";
          }

          styles [
            "suggested-action",
            "pill"
          ]
        }

        Stack main_stack {
          Box loading {
            orientation: vertical;
            spacing: 10;
            margin-top: 40;
            margin-bottom: 20;
            halign: center;
            valign: center;

            Spinner {
              margin-bottom: 35;
              width-request: 30;
              height-request: 30;
              opacity: 0.5;
              spinning: true;
            }

            Label loading_label {
              label: _("Fetching Releases");
              styles [
                "title-1",
                "title"
              ]
            }

            Label {
              label: _("This could take a while");
              styles ["description", "body"]
            }
          }

          Adw.PreferencesPage outerbox {
            Adw.PreferencesGroup {
              Adw.SwitchRow mask_row {
                title: _("Disable Updates");
                active: true;
              }
            }

            Adw.PreferencesGroup versions_group {
              title: _("Select a Release");
              description: _("This will uninstall the current release and install the chosen one instead. Note that downgrading can cause issues.");
              margin-bottom: 42;
            }
          }
        }
      }
    };
  }
}