ngx-bootstrap-ci
Version:
Native Angular Bootstrap Components
63 lines (62 loc) • 9.14 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes} checked by tsc
*/
import { getBoundingClientRect } from './getBoundingClientRect';
import { getClientRect } from './getClientRect';
import { getScrollParent } from './getScrollParent';
import { getStyleComputedProperty } from './getStyleComputedProperty';
import { includeScroll } from './includeScroll';
import { isIE as runIsIE } from './isIE';
/**
* @param {?} children
* @param {?} parent
* @param {?=} fixedPosition
* @return {?}
*/
export function getOffsetRectRelativeToArbitraryNode(children, parent, fixedPosition) {
if (fixedPosition === void 0) { fixedPosition = false; }
var /** @type {?} */ isIE10 = runIsIE(10);
var /** @type {?} */ isHTML = parent.nodeName === 'HTML';
var /** @type {?} */ childrenRect = getBoundingClientRect(children);
var /** @type {?} */ parentRect = getBoundingClientRect(parent);
var /** @type {?} */ scrollParent = getScrollParent(children);
var /** @type {?} */ styles = getStyleComputedProperty(parent);
var /** @type {?} */ borderTopWidth = parseFloat(styles.borderTopWidth);
var /** @type {?} */ borderLeftWidth = parseFloat(styles.borderLeftWidth);
// In cases where the parent is fixed, we must ignore negative scroll in offset calc
if (fixedPosition && isHTML) {
parentRect.top = Math.max(parentRect.top, 0);
parentRect.left = Math.max(parentRect.left, 0);
}
var /** @type {?} */ offsets = getClientRect({
top: childrenRect.top - parentRect.top - borderTopWidth,
left: childrenRect.left - parentRect.left - borderLeftWidth,
width: childrenRect.width,
height: childrenRect.height
});
offsets.marginTop = 0;
offsets.marginLeft = 0;
// Subtract margins of documentElement in case it's being used as parent
// we do this only on HTML because it's the only element that behaves
// differently when margins are applied to it. The margins are included in
// the box of the documentElement, in the other cases not.
if (!isIE10 && isHTML) {
var /** @type {?} */ marginTop = parseFloat(styles.marginTop);
var /** @type {?} */ marginLeft = parseFloat(styles.marginLeft);
offsets.top -= borderTopWidth - marginTop;
offsets.bottom -= borderTopWidth - marginTop;
offsets.left -= borderLeftWidth - marginLeft;
offsets.right -= borderLeftWidth - marginLeft;
// Attach marginTop and marginLeft because in some circumstances we may need them
offsets.marginTop = marginTop;
offsets.marginLeft = marginLeft;
}
if (isIE10 && !fixedPosition
? parent.contains(scrollParent)
: parent === scrollParent && scrollParent.nodeName !== 'BODY') {
offsets = includeScroll(offsets, parent);
}
return offsets;
}
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