Explore the Asset Library with designated query in Godot 4.x Editor

explore.gd

func assetlib_search(query: String):
	var assetlib_view: Control = get_editor_interface().get_editor_main_control().find_children("*", "EditorAssetLibrary", false, false).pop_front()
	if not assetlib_view:
		OS.shell_open("https://godotengine.org/asset-library/asset?filter=" + query.uri_encode())
		return

	get_editor_interface().set_main_screen_editor("AssetLib")
	await get_tree().create_timer(1).timeout

	var search_field: LineEdit = assetlib_view.find_children("*", "LineEdit", true, false).pop_front()
	search_field.set_text(query)
	await get_tree().process_frame

	search_field.emit_signal("text_changed", query)