Method execute_tick_func

src/applib/command_executor_gui.cpp:148–232

bool CommandExecutorGui::execute_tick_func(TickStatus status)
{
	if (status == TickStatus::Starting) {
		if (execution_running_)
			return false;  // already running, abort the new one (?)

		// If quit() was called during one of the manual iterations, and execute()
		// is called in a loop, we need to prevent any real execution past that point.
		if (Gtk::Main::iteration(false) && Gtk::Main::level() > 0) {
			return false;  // try to abort execution
		}

		execution_running_ = true;
		should_abort_ = false;

		// show a dialog with "running..." and an Abort button
		this->show_hide_dialog(true);

		return true;  // proceed with execution
	}


	if (status == TickStatus::Failed) {

		// close the dialog
		this->show_hide_dialog(false);

		// show a dialog with an error.
		// Handled by sync_errors_warn(), nothing else is needed here.

		execution_running_ = false;
		return true;  // return value is ignored here
	}


	if (status == TickStatus::Running) {

		while (Gtk::Main::events_pending()) {
			// Gtk::Main::iteration() returns true if Gtk::Main::quit() has been called, or if there's no Main yet.
			// debug_out_dump("app", Gtk::Main::level() << "\n");
			if (Gtk::Main::iteration() && Gtk::Main::level() > 0) {
				set_running_dialog_abort_mode(true);
				return false;  // try to abort execution
			}
		}

		if (should_abort_) {
			should_abort_ = false;
			set_running_dialog_abort_mode(true);
			return false;  // try to abort execution
		}

		// the dialog may be shown only after some time has passed, to avoid quick show/hide.
		// this enables it.
		this->update_dialog_show_timer();

		return true;  // continue execution
	}