public handleKeydown()

in packages/web-components/fast-foundation/src/data-grid/data-grid-cell.ts [189:248]
56 lines of code
19 McCabe index (conditional complexity)

    public handleKeydown(e: KeyboardEvent): void {
        if (
            e.defaultPrevented ||
            this.columnDefinition === null ||
            (this.cellType === DataGridCellTypes.default &&
                this.columnDefinition.cellInternalFocusQueue !== true) ||
            (this.cellType === DataGridCellTypes.columnHeader &&
                this.columnDefinition.headerCellInternalFocusQueue !== true)
        ) {
            return;
        }

        switch (e.key) {
            case keyEnter:
            case keyFunction2:
                if (this.isInternalFocused || this.columnDefinition === undefined) {
                    return;
                }

                switch (this.cellType) {
                    case DataGridCellTypes.default:
                        if (this.columnDefinition.cellFocusTargetCallback !== undefined) {
                            const focusTarget: HTMLElement = this.columnDefinition.cellFocusTargetCallback(
                                this
                            );
                            if (focusTarget !== null) {
                                this.isInternalFocused = true;
                                focusTarget.focus();
                            }
                            e.preventDefault();
                        }
                        break;

                    case DataGridCellTypes.columnHeader:
                        if (
                            this.columnDefinition.headerCellFocusTargetCallback !==
                            undefined
                        ) {
                            const focusTarget: HTMLElement = this.columnDefinition.headerCellFocusTargetCallback(
                                this
                            );
                            if (focusTarget !== null) {
                                this.isInternalFocused = true;
                                focusTarget.focus();
                            }
                            e.preventDefault();
                        }
                        break;
                }
                break;

            case keyEscape:
                if (this.isInternalFocused) {
                    this.focus();
                    this.isInternalFocused = false;
                    e.preventDefault();
                }
                break;
        }
    }