Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1088 insertions, 0 deletions

diff --git a/browser/components/migration/content/migration-wizard.mjs b/browser/components/migration/content/migration-wizard.mjs
new file mode 100644
index 0000000000..e1462ab9d1
--- /dev/null
+++ b/browser/components/migration/content/migration-wizard.mjs
@@ -0,0 +1,1088 @@
+/* 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
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// eslint-disable-next-line import/no-unassigned-import
+import "chrome://global/content/elements/moz-button-group.mjs";
+import { MigrationWizardConstants } from "chrome://browser/content/migration/migration-wizard-constants.mjs";
+
+/**
+ * This component contains the UI that steps users through migrating their
+ * data from other browsers to this one. This component only contains very
+ * basic logic and structure for the UI, and most of the state management
+ * occurs in the MigrationWizardChild JSWindowActor.
+ */
+export class MigrationWizard extends HTMLElement {
+  static #template = null;
+
+  #deck = null;
+  #browserProfileSelector = null;
+  #browserProfileSelectorList = null;
+  #resourceTypeList = null;
+  #shadowRoot = null;
+  #importButton = null;
+  #importFromFileButton = null;
+  #chooseImportFromFile = null;
+  #safariPermissionButton = null;
+  #safariPasswordImportSkipButton = null;
+  #safariPasswordImportSelectButton = null;
+  #selectAllCheckbox = null;
+  #resourceSummary = null;
+  #expandedDetails = false;
+
+  static get markup() {
+    return `
+      <template>
+        <link rel="stylesheet" href="chrome://browser/skin/migration/migration-wizard.css">
+        <named-deck id="wizard-deck" selected-view="page-loading" aria-busy="true" part="deck">
+          <div name="page-loading">
+            <h1 data-l10n-id="migration-wizard-selection-header"></h1>
+            <div class="loading-block large"></div>
+            <div class="loading-block small"></div>
+            <div class="loading-block small"></div>
+            <moz-button-group class="buttons" part="buttons">
+              <!-- If possible, use the same button labels as the SELECTION page with the same strings.
+                   That'll prevent flicker when the load state exits if we then enter the SELECTION page. -->
+              <button class="cancel-close" data-l10n-id="migration-cancel-button-label" disabled></button>
+              <button data-l10n-id="migration-import-button-label" disabled></button>
+            </moz-button-group>
+          </div>
+
+          <div name="page-selection">
+            <h1 data-l10n-id="migration-wizard-selection-header"></h1>
+            <button id="browser-profile-selector" aria-haspopup="menu" aria-labelledby="migrator-name profile-name">
+              <span class="migrator-icon" role="img"></span>
+              <div class="migrator-description" role="presentation">
+                <div id="migrator-name">&nbsp;</div>
+                <div id="profile-name" class="deemphasized-text"></div>
+              </div>
+              <span class="dropdown-icon" role="img"></span>
+            </button>
+            <div class="no-resources-found error-message">
+              <span class="error-icon" role="img"></span>
+              <div data-l10n-id="migration-wizard-import-browser-no-resources"></div>
+            </div>
+            <div data-l10n-id="migration-wizard-selection-list" class="resource-selection-preamble deemphasized-text hide-on-error"></div>
+            <details class="resource-selection-details hide-on-error">
+              <summary id="resource-selection-summary">
+                <div class="selected-data-header" data-l10n-id="migration-all-available-data-label"></div>
+                <div class="selected-data deemphasized-text">&nbsp;</div>
+                <span class="expand-collapse-icon" role="img"></span>
+              </summary>
+              <fieldset id="resource-type-list">
+                <label id="select-all">
+                  <input type="checkbox" class="select-all-checkbox"/><span data-l10n-id="migration-select-all-option-label"></span>
+                </label>
+                <label id="bookmarks" data-resource-type="BOOKMARKS"/>
+                  <input type="checkbox"/><span default-data-l10n-id="migration-bookmarks-option-label" ie-edge-data-l10n-id="migration-favorites-option-label"></span>
+                </label>
+                <label id="logins-and-passwords" data-resource-type="PASSWORDS">
+                  <input type="checkbox"/><span data-l10n-id="migration-logins-and-passwords-option-label"></span>
+                </label>
+                <label id="history" data-resource-type="HISTORY">
+                  <input type="checkbox"/><span data-l10n-id="migration-history-option-label"></span>
+                </label>
+                <label id="form-autofill" data-resource-type="FORMDATA">
+                  <input type="checkbox"/><span data-l10n-id="migration-form-autofill-option-label"></span>
+                </label>
+                <label id="payment-methods" data-resource-type="PAYMENT_METHODS">
+                  <input type="checkbox"/><span data-l10n-id="migration-payment-methods-option-label"></span>
+                </label>
+              </fieldset>
+            </details>
+
+            <moz-button-group class="buttons" part="buttons">
+              <button class="cancel-close" data-l10n-id="migration-cancel-button-label"></button>
+              <button id="import-from-file" class="primary" data-l10n-id="migration-import-from-file-button-label"></button>
+              <button id="import" class="primary" data-l10n-id="migration-import-button-label"></button>
+            </moz-button-group>
+          </div>
+
+          <div name="page-progress">
+            <h1 id="progress-header" data-l10n-id="migration-wizard-progress-header"></h1>
+            <div class="resource-progress">
+              <div data-resource-type="BOOKMARKS" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span default-data-l10n-id="migration-bookmarks-option-label" ie-edge-data-l10n-id="migration-favorites-option-label"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="PASSWORDS" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-logins-and-passwords-option-label"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="HISTORY" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-history-option-label"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="FORMDATA" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-form-autofill-option-label"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="PAYMENT_METHODS" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-payment-methods-option-label"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+            </div>
+            <moz-button-group class="buttons" part="buttons">
+              <button class="cancel-close" data-l10n-id="migration-cancel-button-label" disabled></button>
+              <button class="primary finish-button done-button" data-l10n-id="migration-done-button-label"></button>
+              <button class="primary finish-button continue-button" data-l10n-id="migration-continue-button-label"></button>
+            </moz-button-group>
+          </div>
+
+          <div name="page-file-import-progress">
+            <h1 id="file-import-progress-header"></h1>
+            <div class="resource-progress">
+              <div data-resource-type="PASSWORDS_FROM_FILE" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-passwords-from-file"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="PASSWORDS_NEW" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-passwords-new"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="PASSWORDS_UPDATED" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-passwords-updated"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+
+              <div data-resource-type="BOOKMARKS_FROM_FILE" class="resource-progress-group">
+                <span class="progress-icon-parent"><span class="progress-icon" role="img"></span></span>
+                <span data-l10n-id="migration-bookmarks-from-file"></span>
+                <span class="success-text deemphasized-text">&nbsp;</span>
+              </div>
+            </div>
+            <moz-button-group class="buttons" part="buttons">
+              <button class="cancel-close" data-l10n-id="migration-cancel-button-label" disabled></button>
+              <button class="primary finish-button done-button" data-l10n-id="migration-done-button-label"></button>
+              <button class="primary finish-button continue-button" data-l10n-id="migration-continue-button-label"></button>
+            </moz-button-group>
+          </div>
+
+          <div name="page-safari-password-permission">
+            <h1 data-l10n-id="migration-safari-password-import-header"></h1>
+            <span data-l10n-id="migration-safari-password-import-steps-header"></span>
+            <ol>
+              <li data-l10n-id="migration-safari-password-import-step1"></li>
+              <li data-l10n-id="migration-safari-password-import-step2"><img class="safari-icon-3dots" data-l10n-name="safari-icon-3dots"/></li>
+              <li data-l10n-id="migration-safari-password-import-step3"></li>
+              <li class="safari-icons-group">
+                <span data-l10n-id="migration-safari-password-import-step4"></span>
+                <span class="page-portrait-icon"></span>
+              </li>
+            </ol>
+            <moz-button-group class="buttons" part="buttons">
+              <button id="safari-password-import-skip" data-l10n-id="migration-safari-password-import-skip-button"></button>
+              <button id="safari-password-import-select" class="primary" data-l10n-id="migration-safari-password-import-select-button"></button>
+            </moz-button-group>
+          </div>
+
+          <div name="page-safari-permission">
+            <h1 data-l10n-id="migration-wizard-selection-header"></h1>
+            <div data-l10n-id="migration-wizard-safari-permissions-sub-header"></div>
+            <ol>
+              <li data-l10n-id="migration-wizard-safari-instructions-continue"></li>
+              <li data-l10n-id="migration-wizard-safari-instructions-folder"></li>
+            </ol>
+            <moz-button-group class="buttons" part="buttons">
+              <button class="cancel-close" data-l10n-id="migration-cancel-button-label"></button>
+              <button id="safari-request-permissions" class="primary" data-l10n-id="migration-continue-button-label"></button>
+            </moz-button-group>
+          </div>
+
+          <div name="page-no-browsers-found">
+            <h1 data-l10n-id="migration-wizard-selection-header"></h1>
+            <div class="no-browsers-found error-message">
+              <span class="error-icon" role="img"></span>
+              <div class="no-browsers-found-message" data-l10n-id="migration-wizard-import-browser-no-browsers"></div>
+            </div>
+            <moz-button-group class="buttons" part="buttons">
+              <button class="cancel-close" data-l10n-id="migration-cancel-button-label"></button>
+              <button id="choose-import-from-file" class="primary" data-l10n-id="migration-choose-to-import-from-file-button-label"></button>
+            </moz-button-group>
+          </div>
+        </named-deck>
+        <slot></slot>
+      </template>
+    `;
+  }
+
+  static get fragment() {
+    if (!MigrationWizard.#template) {
+      let parser = new DOMParser();
+      let doc = parser.parseFromString(MigrationWizard.markup, "text/html");
+      MigrationWizard.#template = document.importNode(
+        doc.querySelector("template"),
+        true
+      );
+    }
+    let fragment = MigrationWizard.#template.content.cloneNode(true);
+    if (window.IS_STORYBOOK) {
+      // If we're using Storybook, load the CSS from the static local file
+      // system rather than chrome:// to take advantage of auto-reloading.
+      fragment.querySelector("link[rel=stylesheet]").href =
+        "./migration/migration-wizard.css";
+    }
+    return fragment;
+  }
+
+  constructor() {
+    super();
+    const shadow = this.attachShadow({ mode: "closed" });
+
+    if (window.MozXULElement) {
+      window.MozXULElement.insertFTLIfNeeded("branding/brand.ftl");
+      window.MozXULElement.insertFTLIfNeeded("browser/migrationWizard.ftl");
+    }
+    document.l10n.connectRoot(shadow);
+
+    shadow.appendChild(MigrationWizard.fragment);
+
+    this.#deck = shadow.querySelector("#wizard-deck");
+    this.#browserProfileSelector = shadow.querySelector(
+      "#browser-profile-selector"
+    );
+    this.#resourceSummary = shadow.querySelector("#resource-selection-summary");
+    this.#resourceSummary.addEventListener("click", this);
+
+    let cancelCloseButtons = shadow.querySelectorAll(".cancel-close");
+    for (let button of cancelCloseButtons) {
+      button.addEventListener("click", this);
+    }
+
+    let finishButtons = shadow.querySelectorAll(".finish-button");
+    for (let button of finishButtons) {
+      button.addEventListener("click", this);
+    }
+
+    this.#importButton = shadow.querySelector("#import");
+    this.#importButton.addEventListener("click", this);
+    this.#importFromFileButton = shadow.querySelector("#import-from-file");
+    this.#importFromFileButton.addEventListener("click", this);
+    this.#chooseImportFromFile = shadow.querySelector(
+      "#choose-import-from-file"
+    );
+    this.#chooseImportFromFile.addEventListener("click", this);
+
+    this.#browserProfileSelector.addEventListener("click", this);
+    this.#resourceTypeList = shadow.querySelector("#resource-type-list");
+    this.#resourceTypeList.addEventListener("change", this);
+
+    this.#safariPermissionButton = shadow.querySelector(
+      "#safari-request-permissions"
+    );
+    this.#safariPermissionButton.addEventListener("click", this);
+
+    this.#selectAllCheckbox = shadow.querySelector("#select-all").control;
+
+    this.#safariPasswordImportSkipButton = shadow.querySelector(
+      "#safari-password-import-skip"
+    );
+    this.#safariPasswordImportSkipButton.addEventListener("click", this);
+
+    this.#safariPasswordImportSelectButton = shadow.querySelector(
+      "#safari-password-import-select"
+    );
+    this.#safariPasswordImportSelectButton.addEventListener("click", this);
+
+    this.#shadowRoot = shadow;
+  }
+
+  connectedCallback() {
+    if (this.hasAttribute("auto-request-state")) {
+      this.requestState();
+    }
+  }
+
+  requestState() {
+    this.dispatchEvent(
+      new CustomEvent("MigrationWizard:RequestState", { bubbles: true })
+    );
+  }
+
+  /**
+   * This setter can be used in the event that the MigrationWizard is being
+   * inserted via Lit, and the caller wants to set state declaratively using
+   * a property expression.
+   *
+   * @param {object} state
+   *   The state object to pass to setState.
+   * @see MigrationWizard.setState.
+   */
+  set state(state) {
+    this.setState(state);
+  }
+
+  /**
+   * This is the main entrypoint for updating the state and appearance of
+   * the wizard.
+   *
+   * @param {object} state The state to be represented by the component.
+   * @param {string} state.page The page of the wizard to display. This should
+   *   be one of the MigrationWizardConstants.PAGES constants.
+   */
+  setState(state) {
+    switch (state.page) {
+      case MigrationWizardConstants.PAGES.SELECTION: {
+        this.#onShowingSelection(state);
+        break;
+      }
+      case MigrationWizardConstants.PAGES.PROGRESS: {
+        this.#onShowingProgress(state);
+        break;
+      }
+      case MigrationWizardConstants.PAGES.FILE_IMPORT_PROGRESS: {
+        this.#onShowingFileImportProgress(state);
+        break;
+      }
+      case MigrationWizardConstants.PAGES.NO_BROWSERS_FOUND: {
+        this.#onShowingNoBrowsersFound(state);
+        break;
+      }
+    }
+
+    this.#deck.toggleAttribute(
+      "aria-busy",
+      state.page == MigrationWizardConstants.PAGES.LOADING
+    );
+    this.#deck.setAttribute("selected-view", `page-${state.page}`);
+
+    if (window.IS_STORYBOOK) {
+      this.#updateForStorybook();
+    }
+  }
+
+  get #dialogMode() {
+    return this.hasAttribute("dialog-mode");
+  }
+
+  #ensureSelectionDropdown() {
+    if (this.#browserProfileSelectorList) {
+      return;
+    }
+    this.#browserProfileSelectorList = this.querySelector("panel-list");
+    if (!this.#browserProfileSelectorList) {
+      throw new Error(
+        "Could not find a <panel-list> under the MigrationWizard during initialization."
+      );
+    }
+    this.#browserProfileSelectorList.toggleAttribute(
+      "min-width-from-anchor",
+      true
+    );
+    this.#browserProfileSelectorList.addEventListener("click", this);
+    // Until bug 1823489 is fixed, this is the easiest way for the
+    // migration wizard to style the selector dropdown so that it more
+    // closely lines up with the edges of the selector button.
+    this.#browserProfileSelectorList.style.boxSizing = "border-box";
+    this.#browserProfileSelectorList.style.overflowY = "auto";
+  }
+
+  /**
+   * Reacts to changes to the browser / profile selector dropdown. This
+   * should update the list of resource types to match what's supported
+   * by the selected migrator and profile.
+   *
+   *  @param {Element} panelItem the selected <panel-item>
+   */
+  #onBrowserProfileSelectionChanged(panelItem) {
+    this.#browserProfileSelector.selectedPanelItem = panelItem;
+    this.#browserProfileSelector.querySelector("#migrator-name").textContent =
+      panelItem.displayName;
+    this.#browserProfileSelector.querySelector("#profile-name").textContent =
+      panelItem.profile?.name || "";
+
+    if (panelItem.brandImage) {
+      this.#browserProfileSelector.querySelector(
+        ".migrator-icon"
+      ).style.content = `url(${panelItem.brandImage})`;
+    } else {
+      this.#browserProfileSelector.querySelector(
+        ".migrator-icon"
+      ).style.content = "url(chrome://global/skin/icons/defaultFavicon.svg)";
+    }
+
+    let key = panelItem.getAttribute("key");
+    let resourceTypes = panelItem.resourceTypes;
+
+    for (let child of this.#resourceTypeList.querySelectorAll(
+      "label[data-resource-type]"
+    )) {
+      child.hidden = true;
+      child.control.checked = false;
+    }
+
+    for (let resourceType of resourceTypes) {
+      let resourceLabel = this.#resourceTypeList.querySelector(
+        `label[data-resource-type="${resourceType}"]`
+      );
+      if (resourceLabel) {
+        resourceLabel.hidden = false;
+        resourceLabel.control.checked = true;
+
+        let labelSpan = resourceLabel.querySelector(
+          "span[default-data-l10n-id]"
+        );
+        if (labelSpan) {
+          if (MigrationWizardConstants.USES_FAVORITES.includes(key)) {
+            document.l10n.setAttributes(
+              labelSpan,
+              labelSpan.getAttribute("ie-edge-data-l10n-id")
+            );
+          } else {
+            document.l10n.setAttributes(
+              labelSpan,
+              labelSpan.getAttribute("default-data-l10n-id")
+            );
+          }
+        }
+      }
+    }
+    let selectAll = this.#shadowRoot.querySelector("#select-all").control;
+    selectAll.checked = true;
+
+    this.#displaySelectedResources();
+    this.#browserProfileSelector.selectedPanelItem = panelItem;
+
+    let selectionPage = this.#shadowRoot.querySelector(
+      "div[name='page-selection']"
+    );
+    selectionPage.setAttribute("migrator-type", panelItem.getAttribute("type"));
+    selectionPage.toggleAttribute(
+      "no-resources",
+      panelItem.getAttribute("type") ==
+        MigrationWizardConstants.MIGRATOR_TYPES.BROWSER && !resourceTypes.length
+    );
+  }
+
+  /**
+   * Called when showing the browser/profile selection page of the wizard.
+   *
+   * @param {object} state
+   *   The state object passed into setState. The following properties are
+   *   used:
+   * @param {string[]} state.migrators An array of source browser names that
+   *   can be migrated from.
+   */
+  #onShowingSelection(state) {
+    this.#ensureSelectionDropdown();
+    this.#browserProfileSelectorList.textContent = "";
+
+    let selectionPage = this.#shadowRoot.querySelector(
+      "div[name='page-selection']"
+    );
+
+    let details = this.#shadowRoot.querySelector("details");
+    selectionPage.toggleAttribute("show-import-all", state.showImportAll);
+    details.open = !state.showImportAll;
+
+    this.#expandedDetails = false;
+
+    for (let migrator of state.migrators) {
+      let opt = document.createElement("panel-item");
+      opt.setAttribute("key", migrator.key);
+      opt.setAttribute("type", migrator.type);
+      opt.profile = migrator.profile;
+      opt.displayName = migrator.displayName;
+      opt.resourceTypes = migrator.resourceTypes;
+      opt.hasPermissions = migrator.hasPermissions;
+      opt.brandImage = migrator.brandImage;
+
+      // Bug 1823489 - since the panel-list and panel-items are slotted, we
+      // cannot style them directly from migration-wizard.css. We use inline
+      // styles for now to achieve the desired appearance, but bug 1823489
+      // will investigate having MigrationWizard own the <xul:panel>,
+      // <panel-list> and <panel-item>'s so that styling can be done in the
+      // stylesheet instead.
+      let button = opt.shadowRoot.querySelector("button");
+      button.style.minHeight = "40px";
+      if (migrator.brandImage) {
+        button.style.backgroundImage = `url(${migrator.brandImage})`;
+      } else {
+        button.style.backgroundImage = `url("chrome://global/skin/icons/defaultFavicon.svg")`;
+      }
+
+      // Bug 1823489 - since the panel-list and panel-items are slotted, we
+      // cannot style them or their children in migration-wizard.css. We use
+      // inline styles for now to achieve the desired appearance, but bug 1823489
+      // will investigate having MigrationWizard own the <xul:panel>,
+      // <panel-list> and <panel-item>'s so that styling can be done in the
+      // stylesheet instead.
+      if (migrator.type == MigrationWizardConstants.MIGRATOR_TYPES.FILE) {
+        button.style.backgroundSize = "20px";
+        button.style.backgroundPosition = "6px center";
+        if (this.#browserProfileSelectorList.isDocumentRTL()) {
+          button.style.backgroundPositionX = "right 6px";
+        }
+      }
+
+      if (migrator.profile) {
+        document.l10n.setAttributes(
+          opt,
+          "migration-wizard-selection-option-with-profile",
+          {
+            sourceBrowser: migrator.displayName,
+            profileName: migrator.profile.name,
+          }
+        );
+      } else {
+        document.l10n.setAttributes(
+          opt,
+          "migration-wizard-selection-option-without-profile",
+          {
+            sourceBrowser: migrator.displayName,
+          }
+        );
+      }
+
+      this.#browserProfileSelectorList.appendChild(opt);
+    }
+
+    if (state.migrators.length) {
+      this.#onBrowserProfileSelectionChanged(
+        this.#browserProfileSelectorList.firstElementChild
+      );
+    }
+
+    // Since this is called before the named-deck actually switches to
+    // show the selection page, we cannot focus this button immediately.
+    // Instead, we use a rAF to queue this up for focusing before the
+    // next paint.
+    requestAnimationFrame(() => {
+      this.#browserProfileSelector.focus({ focusVisible: false });
+    });
+  }
+
+  /**
+   * @typedef {object} ProgressState
+   *   The migration progress state for a resource.
+   * @property {boolean} inProgress
+   *   True if progress is still underway.
+   * @property {string} [message=undefined]
+   *   An optional message to display underneath the resource in
+   *   the progress dialog. This message is only shown when inProgress
+   *   is `false`.
+   */
+
+  /**
+   * Called when showing the progress / success page of the wizard.
+   *
+   * @param {object} state
+   *   The state object passed into setState. The following properties are
+   *   used:
+   * @param {string} state.key
+   *   The key of the migrator being used.
+   * @param {Object<string, ProgressState>} state.progress
+   *   An object whose keys match one of DISPLAYED_RESOURCE_TYPES.
+   *
+   *   Any resource type not included in state.progress will be hidden.
+   */
+  #onShowingProgress(state) {
+    // Any resource progress group not included in state.progress is hidden.
+    let progressPage = this.#shadowRoot.querySelector(
+      "div[name='page-progress']"
+    );
+    let resourceGroups = progressPage.querySelectorAll(
+      ".resource-progress-group"
+    );
+    let totalProgressGroups = Object.keys(state.progress).length;
+    let remainingProgressGroups = totalProgressGroups;
+
+    for (let group of resourceGroups) {
+      let resourceType = group.dataset.resourceType;
+      if (!state.progress.hasOwnProperty(resourceType)) {
+        group.hidden = true;
+        continue;
+      }
+      group.hidden = false;
+
+      let progressIcon = group.querySelector(".progress-icon");
+      let successText = group.querySelector(".success-text");
+
+      let labelSpan = group.querySelector("span[default-data-l10n-id]");
+      if (labelSpan) {
+        if (MigrationWizardConstants.USES_FAVORITES.includes(state.key)) {
+          document.l10n.setAttributes(
+            labelSpan,
+            labelSpan.getAttribute("ie-edge-data-l10n-id")
+          );
+        } else {
+          document.l10n.setAttributes(
+            labelSpan,
+            labelSpan.getAttribute("default-data-l10n-id")
+          );
+        }
+      }
+
+      if (state.progress[resourceType].inProgress) {
+        document.l10n.setAttributes(
+          progressIcon,
+          "migration-wizard-progress-icon-in-progress"
+        );
+        progressIcon.classList.remove("completed");
+        successText.textContent = "";
+        // With no status text, we re-insert the &nbsp; so that the status
+        // text area does not fully collapse.
+        successText.appendChild(document.createTextNode("\u00A0"));
+      } else {
+        document.l10n.setAttributes(
+          progressIcon,
+          "migration-wizard-progress-icon-completed"
+        );
+        progressIcon.classList.add("completed");
+        successText.textContent = state.progress[resourceType].message;
+        remainingProgressGroups--;
+      }
+    }
+
+    let migrationDone = remainingProgressGroups == 0;
+    let headerL10nID = migrationDone
+      ? "migration-wizard-progress-done-header"
+      : "migration-wizard-progress-header";
+    let header = this.#shadowRoot.getElementById("progress-header");
+    document.l10n.setAttributes(header, headerL10nID);
+
+    let finishButtons = progressPage.querySelectorAll(".finish-button");
+    let cancelButton = progressPage.querySelector(".cancel-close");
+
+    for (let finishButton of finishButtons) {
+      finishButton.hidden = !migrationDone;
+    }
+
+    cancelButton.hidden = migrationDone;
+
+    if (migrationDone) {
+      // Since this might be called before the named-deck actually switches to
+      // show the progress page, we cannot focus this button immediately.
+      // Instead, we use a rAF to queue this up for focusing before the
+      // next paint.
+      requestAnimationFrame(() => {
+        let button = this.#dialogMode
+          ? progressPage.querySelector(".done-button")
+          : progressPage.querySelector(".continue-button");
+        button.focus({ focusVisible: false });
+      });
+    }
+  }
+
+  /**
+   * Called when showing the progress / success page of the wizard for
+   * files.
+   *
+   * @param {object} state
+   *   The state object passed into setState. The following properties are
+   *   used:
+   * @param {string} state.title
+   *   The string to display in the header.
+   * @param {Object<string, ProgressState>} state.progress
+   *   An object whose keys match one of DISPLAYED_FILE_RESOURCE_TYPES.
+   *
+   *   Any resource type not included in state.progress will be hidden.
+   */
+  #onShowingFileImportProgress(state) {
+    // Any resource progress group not included in state.progress is hidden.
+    let progressPage = this.#shadowRoot.querySelector(
+      "div[name='page-file-import-progress']"
+    );
+    let resourceGroups = progressPage.querySelectorAll(
+      ".resource-progress-group"
+    );
+    let totalProgressGroups = Object.keys(state.progress).length;
+    let remainingProgressGroups = totalProgressGroups;
+
+    for (let group of resourceGroups) {
+      let resourceType = group.dataset.resourceType;
+      if (!state.progress.hasOwnProperty(resourceType)) {
+        group.hidden = true;
+        continue;
+      }
+      group.hidden = false;
+
+      let progressIcon = group.querySelector(".progress-icon");
+      let successText = group.querySelector(".success-text");
+
+      if (state.progress[resourceType].inProgress) {
+        document.l10n.setAttributes(
+          progressIcon,
+          "migration-wizard-progress-icon-in-progress"
+        );
+        progressIcon.classList.remove("completed");
+        successText.textContent = "";
+        // With no status text, we re-insert the &nbsp; so that the status
+        // text area does not fully collapse.
+        successText.appendChild(document.createTextNode("\u00A0"));
+      } else {
+        document.l10n.setAttributes(
+          progressIcon,
+          "migration-wizard-progress-icon-completed"
+        );
+        progressIcon.classList.add("completed");
+        successText.textContent = state.progress[resourceType].message;
+        remainingProgressGroups--;
+      }
+    }
+
+    let migrationDone = remainingProgressGroups == 0;
+    let header = this.#shadowRoot.getElementById("file-import-progress-header");
+    header.textContent = state.title;
+
+    let doneButton = progressPage.querySelector(".primary");
+    let cancelButton = progressPage.querySelector(".cancel-close");
+    doneButton.hidden = !migrationDone;
+    cancelButton.hidden = migrationDone;
+
+    if (migrationDone) {
+      // Since this might be called before the named-deck actually switches to
+      // show the progress page, we cannot focus this button immediately.
+      // Instead, we use a rAF to queue this up for focusing before the
+      // next paint.
+      requestAnimationFrame(() => {
+        doneButton.focus({ focusVisible: false });
+      });
+    }
+  }
+
+  /**
+   * Called when showing the "no browsers found" page of the wizard.
+   *
+   * @param {object} state
+   *   The state object passed into setState. The following properties are
+   *   used:
+   * @param {string} state.hasFileMigrators
+   *   True if at least one FileMigrator is available for use.
+   */
+  #onShowingNoBrowsersFound(state) {
+    this.#chooseImportFromFile.hidden = !state.hasFileMigrators;
+  }
+
+  /**
+   * Certain parts of the MigrationWizard need to be modified slightly
+   * in order to work properly with Storybook. This method should be called
+   * to apply those changes after changing state.
+   */
+  #updateForStorybook() {
+    // The CSS mask used for the progress spinner cannot be loaded via
+    // chrome:// URIs in Storybook. We work around this by exposing the
+    // progress elements as custom parts that the MigrationWizard story
+    // can style on its own.
+    this.#shadowRoot.querySelectorAll(".progress-icon").forEach(progressEl => {
+      if (progressEl.classList.contains("completed")) {
+        progressEl.removeAttribute("part");
+      } else {
+        progressEl.setAttribute("part", "progress-spinner");
+      }
+    });
+  }
+
+  /**
+   * Takes the current state of the selections page and bundles them
+   * up into a MigrationWizard:BeginMigration event that can be handled
+   * externally to perform the actual migration.
+   */
+  #doImport() {
+    let migrationEventDetail = this.#gatherMigrationEventDetails();
+
+    this.dispatchEvent(
+      new CustomEvent("MigrationWizard:BeginMigration", {
+        bubbles: true,
+        detail: migrationEventDetail,
+      })
+    );
+  }
+
+  /**
+   * @typedef {object} MigrationDetails
+   * @property {string} key
+   *   The key for a MigratorBase subclass.
+   * @property {object|null} profile
+   *   A representation of a browser profile. This is serialized and originally
+   *   sent down from the parent via the GetAvailableMigrators message.
+   * @property {string[]} resourceTypes
+   *   An array of resource types that the user is attempted to import. These
+   *   strings should be from MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.
+   * @property {boolean} hasPermissions
+   *   True if this MigrationWizardChild told us that the associated
+   *   MigratorBase subclass for the key has enough permission to read
+   *   the requested resources.
+   * @property {boolean} expandedDetails
+   *   True if the user clicked on the <summary> element to expand the resource
+   *   type list.
+   */
+
+  /**
+   * Pulls information from the DOM state of the MigrationWizard and constructs
+   * and returns an object that can be used to begin migration via and event
+   * sent to the MigrationWizardChild.
+   *
+   * @returns {MigrationDetails} details
+   */
+  #gatherMigrationEventDetails() {
+    let panelItem = this.#browserProfileSelector.selectedPanelItem;
+    let key = panelItem.getAttribute("key");
+    let type = panelItem.getAttribute("type");
+    let profile = panelItem.profile;
+    let hasPermissions = panelItem.hasPermissions;
+
+    let resourceTypeFields = this.#resourceTypeList.querySelectorAll(
+      "label[data-resource-type]"
+    );
+    let resourceTypes = [];
+    for (let resourceTypeField of resourceTypeFields) {
+      if (resourceTypeField.control.checked) {
+        resourceTypes.push(resourceTypeField.dataset.resourceType);
+      }
+    }
+
+    return {
+      key,
+      type,
+      profile,
+      resourceTypes,
+      hasPermissions,
+      expandedDetails: this.#expandedDetails,
+    };
+  }
+
+  /**
+   * Sends a request to gain read access to the Safari profile folder on
+   * macOS, and upon gaining access, performs a migration using the current
+   * settings as gathered by #gatherMigrationEventDetails
+   */
+  #requestSafariPermissions() {
+    let migrationEventDetail = this.#gatherMigrationEventDetails();
+    this.dispatchEvent(
+      new CustomEvent("MigrationWizard:RequestSafariPermissions", {
+        bubbles: true,
+        detail: migrationEventDetail,
+      })
+    );
+  }
+
+  /**
+   * Sends a request to get a string path for a passwords file exported
+   * from Safari.
+   */
+  #selectSafariPasswordFile() {
+    let migrationEventDetail = this.#gatherMigrationEventDetails();
+    this.dispatchEvent(
+      new CustomEvent("MigrationWizard:SelectSafariPasswordFile", {
+        bubbles: true,
+        detail: migrationEventDetail,
+      })
+    );
+  }
+
+  /**
+   * Changes selected-data-header text and selected-data text based on
+   * how many resources are checked
+   */
+  async #displaySelectedResources() {
+    let resourceTypeLabels = this.#resourceTypeList.querySelectorAll(
+      "label:not([hidden])[data-resource-type]"
+    );
+    let panelItem = this.#browserProfileSelector.selectedPanelItem;
+    let key = panelItem.getAttribute("key");
+
+    let totalResources = resourceTypeLabels.length;
+    let checkedResources = 0;
+
+    let selectedData = this.#shadowRoot.querySelector(".selected-data");
+    let selectedDataArray = [];
+    let resourceTypeToLabelIDs = {
+      [MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.BOOKMARKS]:
+        "migration-list-bookmark-label",
+      [MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.PASSWORDS]:
+        "migration-list-password-label",
+      [MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.HISTORY]:
+        "migration-list-history-label",
+      [MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.FORMDATA]:
+        "migration-list-autofill-label",
+      [MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.PAYMENT_METHODS]:
+        "migration-list-payment-methods-label",
+    };
+
+    if (MigrationWizardConstants.USES_FAVORITES.includes(key)) {
+      resourceTypeToLabelIDs[
+        MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.BOOKMARKS
+      ] = "migration-list-favorites-label";
+    }
+
+    let resourceTypes = Object.keys(resourceTypeToLabelIDs);
+    let labelIds = Object.values(resourceTypeToLabelIDs).map(id => {
+      return { id };
+    });
+    let labels = await document.l10n.formatValues(labelIds);
+    let resourceTypeLabelMapping = new Map();
+    for (let i = 0; i < resourceTypes.length; ++i) {
+      let resourceType = resourceTypes[i];
+      resourceTypeLabelMapping.set(resourceType, labels[i]);
+    }
+    let formatter = new Intl.ListFormat(undefined, {
+      style: "long",
+      type: "conjunction",
+    });
+    for (let resourceTypeLabel of resourceTypeLabels) {
+      if (resourceTypeLabel.control.checked) {
+        selectedDataArray.push(
+          resourceTypeLabelMapping.get(resourceTypeLabel.dataset.resourceType)
+        );
+        checkedResources++;
+      }
+    }
+    if (selectedDataArray.length) {
+      selectedDataArray[0] =
+        selectedDataArray[0].charAt(0).toLocaleUpperCase() +
+        selectedDataArray[0].slice(1);
+      selectedData.textContent = formatter.format(selectedDataArray);
+    } else {
+      selectedData.textContent = "\u00A0";
+    }
+
+    let selectedDataHeader = this.#shadowRoot.querySelector(
+      ".selected-data-header"
+    );
+
+    let importButton = this.#shadowRoot.querySelector("#import");
+    importButton.disabled = checkedResources == 0;
+
+    if (checkedResources == 0) {
+      document.l10n.setAttributes(
+        selectedDataHeader,
+        "migration-no-selected-data-label"
+      );
+    } else if (checkedResources < totalResources) {
+      document.l10n.setAttributes(
+        selectedDataHeader,
+        "migration-selected-data-label"
+      );
+    } else {
+      document.l10n.setAttributes(
+        selectedDataHeader,
+        "migration-all-available-data-label"
+      );
+    }
+
+    let selectionPage = this.#shadowRoot.querySelector(
+      "div[name='page-selection']"
+    );
+    selectionPage.toggleAttribute("single-item", totalResources == 1);
+
+    this.dispatchEvent(
+      new CustomEvent("MigrationWizard:ResourcesUpdated", { bubbles: true })
+    );
+  }
+
+  handleEvent(event) {
+    switch (event.type) {
+      case "click": {
+        if (
+          event.target == this.#importButton ||
+          event.target == this.#importFromFileButton
+        ) {
+          this.#doImport();
+        } else if (
+          event.target.classList.contains("cancel-close") ||
+          event.target.classList.contains("finish-button")
+        ) {
+          this.dispatchEvent(
+            new CustomEvent("MigrationWizard:Close", { bubbles: true })
+          );
+        } else if (event.target == this.#browserProfileSelector) {
+          this.#browserProfileSelectorList.show(event);
+        } else if (
+          event.currentTarget == this.#browserProfileSelectorList &&
+          event.target != this.#browserProfileSelectorList
+        ) {
+          this.#onBrowserProfileSelectionChanged(event.target);
+          // If the user selected a file migration type from the selector, we'll
+          // help the user out by immediately starting the file migration flow,
+          // rather than waiting for them to click the "Select File".
+          if (
+            event.target.getAttribute("type") ==
+            MigrationWizardConstants.MIGRATOR_TYPES.FILE
+          ) {
+            this.#doImport();
+          }
+        } else if (event.target == this.#safariPermissionButton) {
+          this.#requestSafariPermissions();
+        } else if (event.currentTarget == this.#resourceSummary) {
+          this.#expandedDetails = true;
+        } else if (event.target == this.#chooseImportFromFile) {
+          this.dispatchEvent(
+            new CustomEvent("MigrationWizard:RequestState", {
+              bubbles: true,
+              detail: {
+                allowOnlyFileMigrators: true,
+              },
+            })
+          );
+        } else if (event.target == this.#safariPasswordImportSkipButton) {
+          // If the user chose to skip importing passwords from Safari, we
+          // programmatically uncheck the PASSWORDS resource type and re-request
+          // import.
+          let checkbox = this.#shadowRoot.querySelector(
+            `label[data-resource-type="${MigrationWizardConstants.DISPLAYED_RESOURCE_TYPES.PASSWORDS}"]`
+          ).control;
+          checkbox.checked = false;
+
+          // If there are no other checked checkboxes, go back to the selection
+          // screen.
+          let checked = this.#shadowRoot.querySelectorAll(
+            `label[data-resource-type] > input:checked`
+          ).length;
+
+          if (!checked) {
+            this.requestState();
+          } else {
+            this.#doImport();
+          }
+        } else if (event.target == this.#safariPasswordImportSelectButton) {
+          this.#selectSafariPasswordFile();
+        }
+        break;
+      }
+      case "change": {
+        if (event.target == this.#browserProfileSelector) {
+          this.#onBrowserProfileSelectionChanged();
+        } else if (event.target == this.#selectAllCheckbox) {
+          let checkboxes = this.#shadowRoot.querySelectorAll(
+            'label[data-resource-type]:not([hidden]) > input[type="checkbox"]'
+          );
+          for (let checkbox of checkboxes) {
+            checkbox.checked = this.#selectAllCheckbox.checked;
+          }
+          this.#displaySelectedResources();
+        } else {
+          let checkboxes = this.#shadowRoot.querySelectorAll(
+            'label[data-resource-type]:not([hidden]) > input[type="checkbox"]'
+          );
+
+          let allVisibleChecked = Array.from(checkboxes).every(checkbox => {
+            return checkbox.checked;
+          });
+
+          this.#selectAllCheckbox.checked = allVisibleChecked;
+          this.#displaySelectedResources();
+        }
+        break;
+      }
+    }
+  }
+}
+
+if (globalThis.customElements) {
+  customElements.define("migration-wizard", MigrationWizard);
+}