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Edit File: Change.d.ts

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Node } from '../snap/Node';
export declare const enum ChangeType {
    /** Event type for a child added */
    CHILD_ADDED = "child_added",
    /** Event type for a child removed */
    CHILD_REMOVED = "child_removed",
    /** Event type for a child changed */
    CHILD_CHANGED = "child_changed",
    /** Event type for a child moved */
    CHILD_MOVED = "child_moved",
    /** Event type for a value change */
    VALUE = "value"
}
export interface Change {
    /** @param type - The event type */
    type: ChangeType;
    /** @param snapshotNode - The data */
    snapshotNode: Node;
    /** @param childName - The name for this child, if it's a child even */
    childName?: string;
    /** @param oldSnap - Used for intermediate processing of child changed events */
    oldSnap?: Node;
    /**  * @param prevName - The name for the previous child, if applicable */
    prevName?: string | null;
}
export declare function changeValue(snapshotNode: Node): Change;
export declare function changeChildAdded(childName: string, snapshotNode: Node): Change;
export declare function changeChildRemoved(childName: string, snapshotNode: Node): Change;
export declare function changeChildChanged(childName: string, snapshotNode: Node, oldSnap: Node): Change;
export declare function changeChildMoved(childName: string, snapshotNode: Node): Change;

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