Improve accessibility of switching-devices wizard step 1 autofocus be…

…haviour.

Fixes mozilla/sumo#1618.

kitsune/sumo/static/sumo/js/form-wizard-sign-in-step.js

@@ -36,7 +36,7 @@ export class SignInStep extends BaseFormStep {
             <label for="email">${gettext("Enter your email")}</label>
             <div class="tooltip-container">
               <aside id="email-error" class="tooltip">${gettext("Valid email required")}</aside>
-              <input id="email" name="email" type="email" required="true" placeholder="${gettext("user@example.com")}"/>
+              <input id="email" name="email" type="email" required="true" placeholder="${gettext("user@example.com")}" pending-autofocus="" />
             </div>
 
             <button id="continue" class="mzp-c-button mzp-t-product" type="submit" data-event-category="device-migration-wizard" data-event-action="click">${gettext("Continue")}</button>
@@ -69,7 +69,6 @@ export class SignInStep extends BaseFormStep {
     this.#formEl.addEventListener("submit", this);
     this.#emailEl.addEventListener("blur", this);
     this.#emailEl.addEventListener("input", this);
-    this.#emailEl.focus();
   }
 
   disconnectedCallback() {
@@ -169,6 +168,18 @@ export class SignInStep extends BaseFormStep {
       }
     }
 
+    // If we've reached the point where we've got hasUpdatedFxAState set true,
+    // this means that we've confirmed that we're running on a non-disqualified
+    // version of Firefox Desktop. If focus hasn't moved anywhere else in the
+    // meantime, we'll move focus to the email field if it's never been moved
+    // there before.
+    if (this.state.hasUpdatedFxAState && this.#emailEl.hasAttribute("pending-autofocus")) {
+      this.#emailEl.removeAttribute("pending-autofocus");
+      if (document.activeElement == document.body) {
+        this.#emailEl.focus();
+      }
+    }
+
     let alternativeLinks = this.shadowRoot.querySelectorAll(".alternative-link");
     for (let link of alternativeLinks) {
       link.href = this.state.linkHref;

kitsune/sumo/static/sumo/js/form-wizard.js

@@ -55,7 +55,7 @@ export class FormWizard extends HTMLElement {
   static get markup() {
     return `
       <template>
-        <div class="form-wizard-root">
+        <div id="form-wizard-root">
           <div class="form-wizard-content">
             <section>
               <ul id="step-indicator"></ul>
@@ -117,6 +117,17 @@ export class FormWizard extends HTMLElement {
       // If there's no active step, default to the first step.
       this.activeStep = this.firstElementChild?.getAttribute("name");
     }
+
+    // We set up our aria attributes here instead of in
+    // hook_device_migration_wizard.html where the <form-wizard> is put into
+    // the markup of the page because that hook is only ever rendered when the
+    // SUMO article embedding the wizard is updated. By adding the attributes here,
+    // we can ensure that the attributes will apply, even for instances of SUMO
+    // kb articles embedding the form-wizard that might not get updated in a while.
+    let root = this.shadowRoot.querySelector("#form-wizard-root");
+    root.setAttribute("role", "dialog");
+    root.setAttribute("aria-label", gettext("Backup assistant"));
+    this.setAttribute("aria-describedby", "form-wizard-root");
   }
 
   get activeStep() {
@@ -208,7 +219,7 @@ export class FormWizard extends HTMLElement {
       child.toggleAttribute("active", child.getAttribute("reason") === reason);
     }
 
-    let root = this.shadowRoot.querySelector(".form-wizard-root");
+    let root = this.shadowRoot.querySelector("#form-wizard-root");
     root.toggleAttribute("inert", true);
   }
 

kitsune/sumo/static/sumo/js/switching-devices-wizard-manager.js

@@ -62,6 +62,7 @@ export default class SwitchingDevicesWizardManager {
     sumoEmail: "",
     syncEnabled: false,
     confirmedSyncChoices: false,
+    hasUpdatedFxAState: false,
   };
 
   #state = Object.assign({}, this.#defaultState);
@@ -127,6 +128,7 @@ export default class SwitchingDevicesWizardManager {
         return {
           fxaRoot: state.fxaRoot,
           email: state.sumoEmail,
+          hasUpdatedFxAState: state.hasUpdatedFxAState,
           linkHref: `${state.fxaRoot}?${linkParams}`,
 
           ...baseParams,
@@ -425,6 +427,10 @@ export default class SwitchingDevicesWizardManager {
       UITour.getConfiguration("fxa", resolve);
     });
 
+    this.#updateState({
+      hasUpdatedFxAState: true,
+    });
+
     if (fxaConfig.setup && fxaConfig.accountStateOK) {
       let syncEnabled = !!fxaConfig.browserServices?.sync?.setup;
       // If the user had already confirmed their sync choices, but then sync

kitsune/sumo/static/sumo/js/tests/form-wizard-sign-in-step-tests.js

@@ -92,9 +92,59 @@ describe("sign-in-step custom element", () => {
     assertFormElements(form, EXPECTED_FORM_ELEMENTS_WITH_FLOW_METRICS);
   });
 
-  it("should focus the email field automatically", () => {
+  it("should focus the email field automatically after the hasUpdatedFxAState property is set to true", () => {
     let email = step.shadowRoot.querySelector("#email");
+    expect(step.shadowRoot.activeElement).to.not.equal(email);
+    expect(email.hasAttribute("pending-autofocus")).to.be.true;
+
+    const TEST_STATE = {
+      utm_source: "utm_source",
+      utm_campaign: "utm_campaign",
+      utm_medium: "utm_medium",
+      entrypoint: "entrypoint",
+      entrypoint_experiment: "entrypoint_experiment",
+      entrypoint_variation: "entrypoint_variation",
+      context: "context",
+      redirect_to: window.location.href,
+      redirect_immediately: true,
+      service: "sync",
+      action: "email",
+      hasUpdatedFxAState: true,
+    };
+    step.setState(TEST_STATE);
+
     expect(step.shadowRoot.activeElement).to.equal(email);
+    expect(email.hasAttribute("pending-autofocus")).to.be.false;
+  });
+
+  it("should not focus the email field automatically if focus moved after the hasUpdatedFxAState property is set to true", () => {
+    let email = step.shadowRoot.querySelector("#email");
+    expect(step.shadowRoot.activeElement).to.not.equal(email);
+    expect(email.hasAttribute("pending-autofocus")).to.be.true;
+
+    let someButton = document.createElement("button");
+    someButton.textContent = "I'm focused first.";
+    document.body.append(someButton);
+    someButton.focus();
+
+    const TEST_STATE = {
+      utm_source: "utm_source",
+      utm_campaign: "utm_campaign",
+      utm_medium: "utm_medium",
+      entrypoint: "entrypoint",
+      entrypoint_experiment: "entrypoint_experiment",
+      entrypoint_variation: "entrypoint_variation",
+      context: "context",
+      redirect_to: window.location.href,
+      redirect_immediately: true,
+      service: "sync",
+      action: "email",
+      hasUpdatedFxAState: true,
+    };
+    step.setState(TEST_STATE);
+
+    expect(step.shadowRoot.activeElement).to.not.equal(email);
+    expect(email.hasAttribute("pending-autofocus")).to.be.false;
   });
 
   it("should set an email address if one is set in the state", () => {

kitsune/sumo/static/sumo/js/tests/form-wizard-tests.js

@@ -251,7 +251,7 @@ describe("form-wizard custom element", () => {
     it("should put the root into the disqualified state and populate the header/message", () => {
       wizard.disqualify("need-fx-desktop");
 
-      let root = wizard.shadowRoot.querySelector(".form-wizard-root");
+      let root = wizard.shadowRoot.querySelector("#form-wizard-root");
       expect(root.hasAttribute("inert")).to.be.true;
 
       let needFxDesktop = wizard.shadowRoot.querySelector(

kitsune/sumo/static/sumo/js/tests/switching-devices-wizard-manager-tests.js

@@ -386,6 +386,7 @@ describe("k", () => {
         context: "fx_desktop_v3",
         redirect_to: window.location.href,
         redirect_immediately: true,
+        hasUpdatedFxAState: true,
       });
     });
 
@@ -418,6 +419,7 @@ describe("k", () => {
         sumoEmail: "test@example.com",
         syncEnabled: false,
         confirmedSyncChoices: false,
+        hasUpdatedFxAState: true,
       };
       const EXPECTED_PAYLOAD = {
         service: "sync",
@@ -436,14 +438,17 @@ describe("k", () => {
         redirect_to: window.location.href,
         redirect_immediately: true,
         linkHref: `${FAKE_FXA_ROOT}?service=sync&action=email&utm_source=support.mozilla.org&utm_campaign=migration&utm_medium=mozilla-websites&entrypoint=fx-new-device-sync&entrypoint_experiment=experiment&entrypoint_variation=variation&flow_id=${FAKE_FXA_FLOW_ID}&flow_begin_time=${FAKE_FXA_FLOW_BEGIN_TIME}&context=fx_desktop_v3&redirect_to=https%3A%2F%2Fexample.com%2F%23search&redirect_immediately=true`,
+        hasUpdatedFxAState: true,
       };
       expect(step.enter(TEST_STATE)).to.deep.equal(EXPECTED_PAYLOAD);
     });
 
     it("should send the user to the configure-sync step immediately if UITour says that the user is signed in", async () => {
       let setStepCalled = new Promise((resolve) => {
         gSetStepStub.callsFake((name, payload) => {
-          resolve({ name, payload });
+          if (name == "configure-sync") {
+            resolve({ name, payload });
+          }
         });
       });
 

kitsune/sumo/static/sumo/scss/form-wizard.styles.scss

@@ -12,15 +12,15 @@
   box-shadow: 0px 2px 6px rgba(58, 57, 68, 0.2);
 }
 
-.form-wizard-root {
+#form-wizard-root {
   display: flex;
   flex-direction: column;
   position: relative;
 }
 
 :host([disqualified-mobile]) .form-wizard-content,
 :host([disqualified-mobile]) #progress,
-.form-wizard-root:not([inert]) > .form-wizard-disqualified {
+#form-wizard-root:not([inert]) > .form-wizard-disqualified {
   display: none;
 }