source: trip-planner-front/node_modules/@angular/cdk/esm2015/drag-drop/client-rect.js

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/** Gets a mutable version of an element's bounding `ClientRect`. */
export function getMutableClientRect(element) {
    const clientRect = element.getBoundingClientRect();
    // We need to clone the `clientRect` here, because all the values on it are readonly
    // and we need to be able to update them. Also we can't use a spread here, because
    // the values on a `ClientRect` aren't own properties. See:
    // https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect#Notes
    return {
        top: clientRect.top,
        right: clientRect.right,
        bottom: clientRect.bottom,
        left: clientRect.left,
        width: clientRect.width,
        height: clientRect.height
    };
}
/**
 * Checks whether some coordinates are within a `ClientRect`.
 * @param clientRect ClientRect that is being checked.
 * @param x Coordinates along the X axis.
 * @param y Coordinates along the Y axis.
 */
export function isInsideClientRect(clientRect, x, y) {
    const { top, bottom, left, right } = clientRect;
    return y >= top && y <= bottom && x >= left && x <= right;
}
/**
 * Updates the top/left positions of a `ClientRect`, as well as their bottom/right counterparts.
 * @param clientRect `ClientRect` that should be updated.
 * @param top Amount to add to the `top` position.
 * @param left Amount to add to the `left` position.
 */
export function adjustClientRect(clientRect, top, left) {
    clientRect.top += top;
    clientRect.bottom = clientRect.top + clientRect.height;
    clientRect.left += left;
    clientRect.right = clientRect.left + clientRect.width;
}
/**
 * Checks whether the pointer coordinates are close to a ClientRect.
 * @param rect ClientRect to check against.
 * @param threshold Threshold around the ClientRect.
 * @param pointerX Coordinates along the X axis.
 * @param pointerY Coordinates along the Y axis.
 */
export function isPointerNearClientRect(rect, threshold, pointerX, pointerY) {
    const { top, right, bottom, left, width, height } = rect;
    const xThreshold = width * threshold;
    const yThreshold = height * threshold;
    return pointerY > top - yThreshold && pointerY < bottom + yThreshold &&
        pointerX > left - xThreshold && pointerX < right + xThreshold;
}
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