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

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Computed the boundaries limits and return them
 */
import { getScrollParent } from './getScrollParent';
import { getParentNode } from './getParentNode';
import { findCommonOffsetParent } from './findCommonOffsetParent';
import { getOffsetRectRelativeToArbitraryNode } from './getOffsetRectRelativeToArbitraryNode';
import { getViewportOffsetRectRelativeToArtbitraryNode } from './getViewportOffsetRectRelativeToArtbitraryNode';
import { getWindowSizes } from './getWindowSizes';
import { isFixed } from './isFixed';
import { getFixedPositionOffsetParent } from './getFixedPositionOffsetParent';
/**
 * @param {?} target
 * @param {?} host
 * @param {?=} padding
 * @param {?=} boundariesElement
 * @param {?=} fixedPosition
 * @return {?}
 */
export function getBoundaries(target, host, padding = 0, boundariesElement, fixedPosition = false) {
    // NOTE: 1 DOM access here
    // NOTE: 1 DOM access here
    /** @type {?} */
    let boundaries = { top: 0, left: 0 };
    /** @type {?} */
    const offsetParent = fixedPosition ? getFixedPositionOffsetParent(target) : findCommonOffsetParent(target, host);
    // Handle viewport case
    if (boundariesElement === 'viewport') {
        boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
    }
    else {
        // Handle other cases based on DOM element used as boundaries
        /** @type {?} */
        let boundariesNode;
        if (boundariesElement === 'scrollParent') {
            boundariesNode = getScrollParent(getParentNode(host));
            if (boundariesNode.nodeName === 'BODY') {
                boundariesNode = target.ownerDocument.documentElement;
            }
        }
        else if (boundariesElement === 'window') {
            boundariesNode = target.ownerDocument.documentElement;
        }
        else {
            boundariesNode = boundariesElement;
        }
        /** @type {?} */
        const offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent, fixedPosition);
        // In case of HTML, we need a different computation
        if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
            const { height, width } = getWindowSizes(target.ownerDocument);
            boundaries.top += offsets.top - offsets.marginTop;
            boundaries.bottom = Number(height) + Number(offsets.top);
            boundaries.left += offsets.left - offsets.marginLeft;
            boundaries.right = Number(width) + Number(offsets.left);
        }
        else {
            // for all the other DOM elements, this one is good
            boundaries = offsets;
        }
    }
    // Add paddings
    boundaries.left += padding;
    boundaries.top += padding;
    boundaries.right -= padding;
    boundaries.bottom -= padding;
    return boundaries;
}
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