/*!
 * Copyright 2022, Staffbase GmbH and contributors.
 * 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.
 */
export interface BlockElement {
    /**
     * Static getter to determine which HTML attributes should trigger the function 'attributeChangedCallback';
     */
    /**
     * Invoked when the custom element is first connected to the DOM.
     */
    connectedCallback: () => void;
    /**
     * Invoked when the custom element is disconnected from the DOM.
     */
    disconnectedCallback: () => void;
    /**
     * Invoked when the custom element is moved to a new document.
     */
    adoptedCallback: () => void;
    /**
     * Invoked when one of the attributes of the custom element is added, removed, or changed.
     *
     * Note that you have to statically register the observed values with the 'observedAttributes' static getter.
     *
     * @param attrName The changed attributes name
     * @param oldValue The old value
     * @param newValue The new value
     */
    attributeChangedCallback: (attrName: string, oldValue: string | undefined, newValue: string | undefined) => void;
    /**
     * Method to unmount / revert any effects applied by rendering.
     * E.g. to be used in editor cases to remove any rendered content
     * and revert the block to its initial state.
     */
    unmount: () => void;
}