/**

* Copyright 2018 The AMP HTML Authors. All Rights Reserved.

*

* 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.

*/

/**

* Allows clients to apply restrictions on DOM and storage changes.

*/

declare interface Sanitizer {

/**

* @param node

* @return True if `node.nodeName` is allowed.

*/

sanitize(node: Node): boolean;

/**

* Requests an element attribute change.

* @param node

* @param attr

* @param value

* @return True if attribute change was applied.

*/

setAttribute(node: Node, attr: string, value: string | null): boolean;

/**

* Requests a node property change.

* @param node

* @param prop

* @param value

* @return True if property change was applied.

*/

setProperty(node: Node, prop: string, value: string): boolean;

/**

* Retrieves the current localStorage or sessionStorage data.

* @param location `0` for localStorage, `1` for sessionStorage, `2` for AMP state.

* @param key A storage item key (optional). To get all keys, pass `undefined` here.

* @return

*/

getStorage(location: number, key?: string | null): Promise<StorageValue>;

/**

* Requests a change in localStorage or sessionStorage.

* @param location `0` for localStorage, `1` for sessionStorage, `2` for AMP state.

* @param key A storage item key. To change all keys, pass `null` here.

* @param value A storage value. To remove a key, pass `null` here.

* @return True if storage change was applied.

*/

setStorage(location: number, key: string | null, value: string | null): boolean;

}

type StorageValue = { [key: string]: string };

// OffscreenCanvas not yet available in TypeScript - 'transferControlToOffscreen' would not be

// detected as a Canvas method unless this is here

declare interface HTMLCanvasElement {

transferControlToOffscreen(): Transferable;

}

interface Node {

_index_: number;

}

type RenderableElement = (HTMLElement | SVGElement | Text | Comment) & {

[index: string]: any;

};

declare const WORKER_DOM_DEBUG: boolean;