VLEX/BPM-UI/node_modules/ngx-bootstrap/positioning/esm2015/utils/getTargetOffsets.js

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Get offsets to the target
 */
import { getOppositePlacement } from './getOppositePlacement';
import { getOuterSizes } from './getOuterSizes';
/**
 * @param {?} target
 * @param {?} hostOffsets
 * @param {?} position
 * @return {?}
 */
export function getTargetOffsets(target, hostOffsets, position) {
    /** @type {?} */
    const placement = position.split(' ')[0];
    // Get target node sizes
    /** @type {?} */
    const targetRect = getOuterSizes(target);
    // Add position, width and height to our offsets object
    /** @type {?} */
    const targetOffsets = {
        width: targetRect.width,
        height: targetRect.height
    };
    // depending by the target placement we have to compute its offsets slightly differently
    /** @type {?} */
    const isHoriz = ['right', 'left'].indexOf(placement) !== -1;
    /** @type {?} */
    const mainSide = isHoriz ? 'top' : 'left';
    /** @type {?} */
    const secondarySide = isHoriz ? 'left' : 'top';
    /** @type {?} */
    const measurement = isHoriz ? 'height' : 'width';
    /** @type {?} */
    const secondaryMeasurement = !isHoriz ? 'height' : 'width';
    ((/** @type {?} */ (targetOffsets)))[mainSide] =
        hostOffsets[mainSide] +
            hostOffsets[measurement] / 2 -
            targetRect[measurement] / 2;
    ((/** @type {?} */ (targetOffsets)))[secondarySide] = placement === secondarySide
        ? hostOffsets[secondarySide] - targetRect[secondaryMeasurement]
        : ((/** @type {?} */ (hostOffsets)))[getOppositePlacement(secondarySide)];
    return targetOffsets;
}
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