ngx-bootstrap-ci/positioning/esm2015/modifiers/shift.js

Native Angular Bootstrap Components

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes} checked by tsc
 */
/**
 * @param {?} data
 * @return {?}
 */
export function shift(data) {
    const /** @type {?} */ placement = data.placement;
    const /** @type {?} */ basePlacement = placement.split(' ')[0];
    const /** @type {?} */ shiftvariation = placement.split(' ')[1];
    if (shiftvariation) {
        const { host, target } = data.offsets;
        const /** @type {?} */ isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
        const /** @type {?} */ side = isVertical ? 'left' : 'top';
        const /** @type {?} */ measurement = isVertical ? 'width' : 'height';
        const /** @type {?} */ shiftOffsets = {
            left: { [side]: host[side] },
            right: {
                [side]: host[side] + host[measurement] - host[measurement]
            }
        };
        data.offsets.target = Object.assign({}, target, shiftOffsets[shiftvariation]);
    }
    return data;
}

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