let selection_holder = fb.AcquireUiSelectionHolder();
selection_holder.SetPlaylistSelectionTracking();

function on_focus(is_focused) {
    if (is_focused) { // Updates the selection when panel regains focus
        selection_holder.SetPlaylistSelectionTracking();
    }
}

let selection_holder = fb.AcquireUiSelectionHolder();
let handle_list = null;

function on_mouse_lbtn_up(x, y) { // Presumably going to select something here...
   handle_list = ...;
   selection_holder.SetSelection(handle_list);
}

function on_focus(is_focused) {
   if (is_focused) { // Updates the selection when panel regains focus
       if (handle_list && handle_list.Count)
           selection_holder.SetSelection(handle_list);
   }
}

Methods

SetPlaylistSelectionTracking()

js/foo_spider_monkey_panel.js, line 3133

Sets selected items to playlist selection and enables tracking.
When the playlist selection changes, the stored selection is automatically updated. Tracking ends when a set method is called on any ui_selection_holder or when the last reference to this ui_selection_holder is released.

SetPlaylistTracking()

js/foo_spider_monkey_panel.js, line 3141

Sets selected items to playlist contents and enables tracking.
When the playlist selection changes, the stored selection is automatically updated. Tracking ends when a set method is called on any ui_selection_holder or when the last reference to this ui_selection_holder is released.

SetSelection(handle_list, typeopt)

js/foo_spider_monkey_panel.js, line 3125

Sets the selected items.

Parameters:

Name	Type	Attributes	Default	Description
handle_list	FbMetadbHandleList
type	number	<optional>	0	Selection type. Possible values: 0 - default, undefined 1 - active_playlist_selection 2 - caller_active_playlist 3 - playlist_manager 4 - now_playing 5 - keyboard_shortcut_list 6 - media_library_viewer