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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
AutofillFormFactory:
"resource://gre/modules/shared/AutofillFormFactory.sys.mjs",
FormAutofillHandler:
"resource://gre/modules/shared/FormAutofillHandler.sys.mjs",
FormAutofillUtils: "resource://gre/modules/shared/FormAutofillUtils.sys.mjs",
});
export class FormStateManager {
#formHandlerByElement = new WeakMap();
#formHandlerByRootElement = new WeakMap();
#formHandlerByRootId = new Map();
constructor(onFilledModifiedCallback) {
/**
* @type {WeakMap} mapping FormLike root HTML elements to FormAutofillHandler objects.
*/
this.onFilledModifiedCallback = onFilledModifiedCallback;
}
getWeakIdentifiedForms() {
return ChromeUtils.nondeterministicGetWeakMapKeys(
this.#formHandlerByRootElement
);
}
/**
* Get the form handler for the specified input element.
*
* @param {HTMLInputElement} element
* Focused input which triggered profile searching
* @returns {FormAutofillHandler | null}
* The form handler associated with the specified input element.
*/
getFormHandler(element) {
if (!element) {
return null;
}
let handler = this.#formHandlerByElement.get(element);
if (handler) {
return handler;
}
const rootElement = lazy.AutofillFormFactory.findRootForField(element);
return this.#formHandlerByRootElement.get(rootElement);
}
/**
* Get the form handler for the specified root element.
*
* @param {string} rootElementId
* the id of the root element
* @returns {FormAutofillHandler | null}
* The form handler associated with the specified input element.
*/
getFormHandlerByRootElementId(rootElementId) {
return this.#formHandlerByRootId.get(rootElementId);
}
/**
* Get the form handler for the specified input element. If no handler exists
* in the cache, this function creates a new one.
*
* @param {HTMLInputElement} element
* Focused input which triggered profile searching
* @returns {FormAutofillHandler}
* The form handler associated with the specified input element.
*/
getOrCreateFormHandler(element) {
let handler = this.getFormHandler(element);
if (!handler) {
handler = new lazy.FormAutofillHandler(
lazy.AutofillFormFactory.createFromField(element),
this.onFilledModifiedCallback
);
const root = handler.form.rootElement;
const rootElementId = lazy.FormAutofillUtils.getElementIdentifier(root);
this.#formHandlerByRootId.set(rootElementId, handler);
this.#formHandlerByRootElement.set(root, handler);
handler.form.elements.forEach(ele =>
this.#formHandlerByElement.set(ele, handler)
);
}
return handler;
}
}
export default FormStateManager;