public itemClicked()

in packages/attribute-slicer/src/selection/SelectionManager.ts [203:243]

• 34 lines of code
• 13 McCabe index (conditional complexity)

	public itemClicked(item: T): void {
		// Toggles the selected item out of the selection
		const toggleItem: Function = (): void => {
			const idx: number = this.findIndex(item);
			const newSel: T[] = this.selection.slice(0);
			if (idx < 0) {
				newSel.push(item);
			} else {
				newSel.splice(idx, 1);
			}
			this.selection = newSel;
		};

		if (!this.keyState.ctrl) {
			// If the user just selected the first item
			if (this.keyState.shift && !this.shiftPivot) {
				this.shiftPivot = item;
			}
			if (this.keyState.shift && this.items && this.items.length) {
				const idx: number = this.findIndex(this.shiftPivot, this.items);
				const lastIdx: number = this.findIndex(item, this.items);

				// The selection is the range between the first and second indexes
				this.selection = this.items.slice(
					idx < lastIdx ? idx : lastIdx,
					(idx < lastIdx ? lastIdx : idx) + 1,
				);
			} else if (this.internalBrushMode) {
				// If the user is in "brush" mode, but just single clicks an item,
				// then just deselect it, otherwise set the item
				this.selection =
					this.selection.length === 1 && this.selection[0].id === item.id
						? []
						: [item];
			} else {
				toggleItem();
			}
		} else {
			toggleItem();
		}
	}