Method _notification

scene/gui/text_edit.cpp:740–2051

}

void TextEdit::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_EXIT_TREE:
		case NOTIFICATION_ACCESSIBILITY_INVALIDATE: {
			text.clear_accessibility();
			accessibility_text_root_element_nl = RID();
		} break;

		case NOTIFICATION_ACCESSIBILITY_UPDATE: {
			RID ae = get_accessibility_element();
			ERR_FAIL_COND(ae.is_null());

			DisplayServer::get_singleton()->accessibility_update_set_role(ae, DisplayServer::AccessibilityRole::ROLE_MULTILINE_TEXT_FIELD);
			if (text.size() == 1 && text[0].is_empty()) {
				DisplayServer::get_singleton()->accessibility_update_set_placeholder(ae, atr(placeholder_text));
			}
			if (!placeholder_text.is_empty() && get_accessibility_name().is_empty()) {
				DisplayServer::get_singleton()->accessibility_update_set_name(ae, atr(placeholder_text));
			}
			DisplayServer::get_singleton()->accessibility_update_set_flag(ae, DisplayServer::AccessibilityFlags::FLAG_READONLY, !editable);
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SET_TEXT_SELECTION, callable_mp(this, &TextEdit::_accessibility_action_set_selection));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_REPLACE_SELECTED_TEXT, callable_mp(this, &TextEdit::_accessibility_action_replace_selected));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SET_VALUE, callable_mp(this, &TextEdit::_accessibility_action_set_value));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SHOW_CONTEXT_MENU, callable_mp(this, &TextEdit::_accessibility_action_menu));

			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SCROLL_DOWN, callable_mp(this, &TextEdit::_accessibility_scroll_down));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SCROLL_LEFT, callable_mp(this, &TextEdit::_accessibility_scroll_left));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SCROLL_RIGHT, callable_mp(this, &TextEdit::_accessibility_scroll_right));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SCROLL_UP, callable_mp(this, &TextEdit::_accessibility_scroll_up));
			DisplayServer::get_singleton()->accessibility_update_add_action(ae, DisplayServer::AccessibilityAction::ACTION_SET_SCROLL_OFFSET, callable_mp(this, &TextEdit::_accessibility_scroll_set));

			int first_vis_line = get_first_visible_line();
			int row_height = get_line_height();
			int xmargin_beg = Math::ceil(theme_cache.style_normal->get_margin(SIDE_LEFT)) + gutters_width + gutter_padding;
			Size2 size = get_size();
			bool rtl = is_layout_rtl();
			int lines_drawn = 0;

			RID selection_start;
			RID selection_end;

			for (int i = 0; i < text.size(); i++) {
				text.update_accessibility(i, ae);
				const Ref<TextParagraph> &ac_buf = text.get_line_data(i);
				const Vector<RID> &text_aes = text.get_accessibility_elements(i);
				int first_indent_line = 0;
				float indent_ofs = 0.0;
				if (text.is_indent_wrapped_lines()) {
					_get_wrapped_indent_level(i, first_indent_line);
					indent_ofs = MIN(text.get_indent_offset(i, rtl), wrap_at_column * 0.6);
				}
				for (int j = 0; j < text_aes.size(); j++) {
					float text_off_x = 0.0;
					float text_off_y = 0.0;
					if (!editable) {
						text_off_x = theme_cache.style_readonly->get_offset().x / 2;
						text_off_x -= theme_cache.style_normal->get_offset().x / 2;
						text_off_y = theme_cache.style_readonly->get_offset().y / 2;