# where user_data = (liststore, column #id)
    @staticmethod
    def liststore_edit(cell, row, text, user_data):
        #log.EDIT(cell, row, text, user_data)
        row = int(row)
        liststore, column = user_data
        liststore[row][column] = text
        try:
            # update executable-indicator pixbuf
            if column == 1 and liststore[row][2].startswith("gtk-"):
                liststore[row][2] = uikit.app_bin_check(text)
            # add new row when editing last one
            if len(text) and (row + 1) == len(liststore):
                liststore.append(["", "", "gtk-new"])
        except:
            pass

    # return OK or CANCEL depending on availability of app
    @staticmethod
    def app_bin_check(v):
        bin = re.findall(r"(?<![$(`%-;/$])\b(\w+(?:-\w+)*)", v)
        if bin:
            bin = [find_executable(bin) for bin in bin]