@webcomponents/custom-elements
Version:
HTML Custom Elements Polyfill
59 lines (43 loc) • 1.35 kB
JavaScript
/** @type {boolean|undefined} */
CustomElementRegistry.prototype.forcePolyfill;
class AlreadyConstructedMarker {}
/**
* @enum {number}
*/
const CustomElementState = {
custom: 1,
failed: 2,
};
/**
* @typedef {{
* localName: string,
* constructor: !Function,
* connectedCallback: Function,
* disconnectedCallback: Function,
* adoptedCallback: Function,
* attributeChangedCallback: Function,
* observedAttributes: !Array<string>,
* constructionStack: !Array<!HTMLElement|!AlreadyConstructedMarker>,
* }}
*/
let CustomElementDefinition;
// These properties are defined in the closure externs so that they will not be
// renamed during minification.
// Used for both Documents and Nodes which represent documents in the HTML
// Imports polyfill.
/** @type {boolean|undefined} */
Node.prototype.__CE_hasRegistry;
/** @type {boolean|undefined} */
Node.prototype.__CE_isImportDocument;
/** @type {boolean|undefined} */
Node.prototype.__CE_documentLoadHandled;
// Apply generally to Node.
/** @type {boolean|undefined} */
Node.prototype.__CE_patched;
// Apply generally to Element.
/** @type {!CustomElementState|undefined} */
Element.prototype.__CE_state;
/** @type {!CustomElementDefinition|undefined} */
Element.prototype.__CE_definition;
/** @type {!DocumentFragment|undefined} */
Element.prototype.__CE_shadowRoot;