Method _selectMatchingItem

packages/main/src/ComboBox.ts:1290–1373

()

	}

	_selectMatchingItem() {
		const currentlyFocusedItem = this.items.find(item => item.focused);
		const shouldSelectionBeCleared = currentlyFocusedItem && currentlyFocusedItem.isGroupItem;
		const valueToMatch = currentlyFocusedItem?.value ?? this.selectedValue;
		let itemToBeSelected: IComboBoxItem | undefined;
		let previouslySelectedItem: IComboBoxItem | undefined;

		// Find previously selected item
		this._filteredItems.forEach(item => {
			if (!isInstanceOfComboBoxItemGroup(item)) {
				if (item.selected) {
					previouslySelectedItem = item;
				}
			} else {
				const selectedGroupItem = item.items?.find(i => i.selected);
				if (selectedGroupItem) {
					previouslySelectedItem = selectedGroupItem;
				}
			}
		});

		this._filteredItems.forEach(item => {
			if (!shouldSelectionBeCleared && !itemToBeSelected) {
				if (isInstanceOfComboBoxItemGroup(item)) {
					if (this._useSelectedValue) {
						itemToBeSelected = item.items.find(i => i.value === valueToMatch && (this.value === "" || i.text?.toLowerCase() === this.value.toLowerCase()));
					} else {
						itemToBeSelected = item.items?.find(i => i.text?.toLowerCase() === this.value.toLowerCase());
					}
				} else {
					if (this._useSelectedValue) {
						itemToBeSelected = this.items.find(i => i.value === valueToMatch && (this.value === "" || i.text?.toLowerCase() === this.value.toLowerCase()));
						return;
					}
					itemToBeSelected = item.text?.toLowerCase() === this.value.toLowerCase() ? item : undefined;
				}
			}
		});

		// When selectedValue matched an item but value is empty (initial render), populate value from the item's text
		if (itemToBeSelected && this._initialRendering && this.value === "") {
			this.value = itemToBeSelected.text || "";
		}

		this._filteredItems = this._filteredItems.map(item => {
			if (!isInstanceOfComboBoxItemGroup(item)) {
				item.selected = item === itemToBeSelected;
				return item;
			}

			item.items?.forEach(groupItem => {
				groupItem.selected = itemToBeSelected === groupItem;
			});

			return item;
		});

		if (!itemToBeSelected && this._useSelectedValue) {