ngx-bootstrap-fix-datepicker
Version:
Native Angular Bootstrap Components
73 lines • 9.15 kB
JavaScript
/**
* @fileoverview added by tsickle
* @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} 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; }
/** @type {?} */
var isIE10 = runIsIE(10);
/** @type {?} */
var isHTML = parent.nodeName === 'HTML';
/** @type {?} */
var childrenRect = getBoundingClientRect(children);
/** @type {?} */
var parentRect = getBoundingClientRect(parent);
/** @type {?} */
var scrollParent = getScrollParent(children);
/** @type {?} */
var styles = getStyleComputedProperty(parent);
/** @type {?} */
var borderTopWidth = parseFloat(styles.borderTopWidth);
/** @type {?} */
var 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);
}
/** @type {?} */
var 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) {
/** @type {?} */
var marginTop = parseFloat(styles.marginTop);
/** @type {?} */
var 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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