forked from mirrors/gecko-dev
103 lines
3.1 KiB
JavaScript
103 lines
3.1 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { MigrationWizardConstants } from "chrome://browser/content/migration/migration-wizard-constants.mjs";
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import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
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const lazy = {};
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XPCOMUtils.defineLazyPreferenceGetter(
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lazy,
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"SHOW_IMPORT_ALL_PREF",
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"browser.migrate.content-modal.import-all.enabled",
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false
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);
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/**
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* This class is responsible for updating the state of a <migration-wizard>
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* component, and for listening for events from that component to perform
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* various migration functions.
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*/
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export class MigrationWizardChild extends JSWindowActorChild {
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#wizardEl = null;
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/**
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* General event handler function for events dispatched from the
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* <migration-wizard> component.
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*
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* @param {Event} event
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* The DOM event being handled.
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* @returns {Promise}
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*/
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async handleEvent(event) {
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switch (event.type) {
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case "MigrationWizard:Init": {
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this.#wizardEl = event.target;
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let migrators = await this.sendQuery("GetAvailableMigrators");
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this.setComponentState({
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migrators,
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page: MigrationWizardConstants.PAGES.SELECTION,
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showImportAll: lazy.SHOW_IMPORT_ALL_PREF,
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});
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this.#wizardEl.dispatchEvent(
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new this.contentWindow.CustomEvent("MigrationWizard:Ready", {
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bubbles: true,
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})
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);
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break;
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}
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case "MigrationWizard:BeginMigration": {
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await this.sendQuery("Migrate", event.detail);
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this.#wizardEl.dispatchEvent(
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new this.contentWindow.CustomEvent("MigrationWizard:DoneMigration", {
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bubbles: true,
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})
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);
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break;
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}
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}
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}
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/**
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* General message handler function for messages received from the
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* associated MigrationWizardParent JSWindowActor.
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*
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* @param {ReceiveMessageArgument} message
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* The message received from the MigrationWizardParent.
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*/
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receiveMessage(message) {
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if (message.name == "UpdateProgress") {
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let progress = message.data;
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this.setComponentState({
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page: MigrationWizardConstants.PAGES.PROGRESS,
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progress,
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});
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}
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}
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/**
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* Calls the `setState` method on the <migration-wizard> component. The
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* state is cloned into the execution scope of this.#wizardEl.
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*
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* @param {object} state The state object that a <migration-wizard>
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* component expects. See the documentation for the element's setState
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* method for more details.
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*/
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setComponentState(state) {
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if (!this.#wizardEl) {
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return;
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}
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// We waive XrayWrappers in the event that the element is embedded in
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// a document without system privileges, like about:welcome.
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Cu.waiveXrays(this.#wizardEl).setState(
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Cu.cloneInto(
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state,
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// ownerGlobal doesn't exist in content windows.
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// eslint-disable-next-line mozilla/use-ownerGlobal
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this.#wizardEl.ownerDocument.defaultView
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)
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);
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}
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}
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