Method OnClick

src/script/script_gui.cpp:396–484

	}

	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
	{
		switch (widget) {
			case WID_SCRS_BACKGROUND: {
				auto it = this->vscroll->GetScrolledItemFromWidget(this->visible_settings, pt.y, this, widget);
				if (it == this->visible_settings.end()) break;

				const ScriptConfigItem &config_item = **it;
				if (!this->IsEditableItem(config_item)) return;

				int num = it - this->visible_settings.begin();
				if (this->clicked_row != num) {
					this->CloseChildWindows(WC_QUERY_STRING);
					this->CloseChildWindows(WC_DROPDOWN_MENU);
					this->clicked_row = num;
					this->clicked_dropdown = false;
				}

				bool bool_item = config_item.flags.Test(ScriptConfigFlag::Boolean);

				Rect r = this->GetWidget<NWidgetBase>(widget)->GetCurrentRect().Shrink(WidgetDimensions::scaled.frametext, RectPadding::zero);
				int x = pt.x - r.left;
				if (_current_text_dir == TD_RTL) x = r.Width() - 1 - x;

				/* One of the arrows is clicked (or green/red rect in case of bool value) */
				int old_val = this->script_config->GetSetting(config_item.name);
				if (!bool_item && IsInsideMM(x, 0, SETTING_BUTTON_WIDTH) && config_item.complete_labels) {
					if (this->clicked_dropdown) {
						/* unclick the dropdown */
						this->CloseChildWindows(WC_DROPDOWN_MENU);
						this->clicked_dropdown = false;
						this->closing_dropdown = false;
					} else {
						int rel_y = (pt.y - r.top) % this->line_height;

						Rect wi_rect;
						wi_rect.left = pt.x - (_current_text_dir == TD_RTL ? SETTING_BUTTON_WIDTH - 1 - x : x);
						wi_rect.right = wi_rect.left + SETTING_BUTTON_WIDTH - 1;
						wi_rect.top = pt.y - rel_y + (this->line_height - SETTING_BUTTON_HEIGHT) / 2;
						wi_rect.bottom = wi_rect.top + SETTING_BUTTON_HEIGHT - 1;

						/* If the mouse is still held but dragged outside of the dropdown list, keep the dropdown open */
						if (pt.y >= wi_rect.top && pt.y <= wi_rect.bottom) {
							this->clicked_dropdown = true;
							this->closing_dropdown = false;

							DropDownList list;
							for (int i = config_item.min_value; i <= config_item.max_value; i++) {
								list.push_back(MakeDropDownListStringItem(GetString(STR_JUST_RAW_STRING, config_item.labels.find(i)->second), i));
							}

							ShowDropDownListAt(this, std::move(list), old_val, WID_SCRS_SETTING_DROPDOWN, wi_rect, COLOUR_ORANGE);
						}
					}
				} else if (IsInsideMM(x, 0, SETTING_BUTTON_WIDTH)) {
					int new_val = old_val;
					if (bool_item) {
						new_val = !new_val;