MOBILE-4338 quiz: Fix multianswer inline feedback

src/addons/mod/quiz/tests/behat/basic_usage.feature

@@ -47,7 +47,6 @@ Feature: Attempt a quiz in app
       | Test questions   | match            | TF9   | Text of the seventh question                     |
       | Test questions   | description      | TF10  | Text of the eighth question                      |
       # TODO test calculated question type.
-      # TODO test multianswer question type.
       # The calculatedsimple type is implemented using the calculated type.
       # The calculatedmulti type is implemented using the multichoice type.
       # The randomsamatch type is implemented using the match type.
@@ -70,6 +69,20 @@ Feature: Attempt a quiz in app
       | TF12     | 10   |
       | TF13     | 11   |
 
+    # TODO rewrite using generators.
+    And I am on the "Course 1" "core_question > course question bank" page logged in as teacher1
+    And I add a "Embedded answers (Cloze)" question filling the form with:
+      | Question name        | multianswer                                     |
+      | Question text        | {1:SHORTANSWER:=Berlin} is the capital of Germany.  |
+      | General feedback     | The capital of Germany is Berlin.                   |
+    And I am on the "quiz2" "Activity" page
+    And I click on "Questions" "link"
+    And I click on "Add" "link"
+    And I click on "from question bank" "link"
+    And I set the field with xpath "//tr[contains(normalize-space(.), 'multianswer')]//input[@type='checkbox']" to "1"
+    And I click on "Add selected questions to the quiz" "button"
+    And I log out
+
   Scenario: View a quiz entry page (attempts, status, etc.)
     Given I entered the quiz activity "Quiz 1" on course "Course 1" as "student1" in the app
     When I press "Attempt quiz now" in the app
@@ -125,6 +138,7 @@ Feature: Attempt a quiz in app
     When I press "Attempt quiz now" in the app
     And I press "Four" in the app
     And I press "Three" in the app
+    And I set the field "Answer" to "Berlin" in the app
     And I press "Next" in the app
     And I set the field "Answer" to "testing" in the app
     And I press "Next" in the app
@@ -163,7 +177,7 @@ Feature: Attempt a quiz in app
     And I click on "img.dropbackground" "css"
     And I press "Submit" in the app
     Then I should find "Answer saved" in the app
-    And I should find "Incomplete answer" within "9" "ion-item" in the app
+    And I should find "Incomplete answer" within "10" "ion-item" in the app
     But I should not find "Not yet answered" in the app
 
     When I press "Submit all and finish" in the app
@@ -172,6 +186,10 @@ Feature: Attempt a quiz in app
     And I should find "Finished" in the app
     And I should find "Not yet graded" in the app
 
+    When I press "Correct" within "Question 2" "ion-card" in the app
+    Then I should find "The correct answer is: Berlin" in the app
+    And I should find "Mark 1.00 out of 1.00" in the app
+
   Scenario: Submit a quiz & Review a quiz attempt
     Given I entered the quiz activity "Quiz 1" on course "Course 1" as "student1" in the app
     When I press "Attempt quiz now" in the app

src/core/features/question/services/question-helper.ts

@@ -792,7 +792,7 @@ export class CoreQuestionHelperProvider {
                 const classList = icon.classList.toString();
                 if (classList.indexOf('fa-check') >= 0) {
                     correct = true;
-                } else if (classList.indexOf('fa-xmark') < 0 || classList.indexOf('fa-remove') < 0) {
+                } else if (classList.indexOf('fa-xmark') < 0 && classList.indexOf('fa-remove') < 0) {
                     return;
                 }
             }
@@ -815,6 +815,7 @@ export class CoreQuestionHelperProvider {
             icon.parentNode?.replaceChild(newIcon, icon);
         });
 
+        // Treat legacy markup used before MDL-77856 (4.2).
         const spans = Array.from(element.querySelectorAll('.feedbackspan.accesshide'));
         spans.forEach((span) => {
             // Search if there's a hidden feedback for this element.
@@ -851,20 +852,37 @@ export class CoreQuestionHelperProvider {
         contextInstanceId?: number,
         courseId?: number,
     ): void {
-        const icons = <HTMLElement[]> Array.from(element.querySelectorAll('ion-icon.questioncorrectnessicon[tappable]'));
+        const icons = <HTMLElement[]> Array.from(element.querySelectorAll('ion-icon.questioncorrectnessicon'));
         const title = Translate.instant('core.question.feedback');
+        const getClickableFeedback = (icon: HTMLElement) => {
+            if (icon.parentElement instanceof HTMLButtonElement && icon.parentElement.dataset.toggle === 'popover') {
+                return {
+                    element: icon.parentElement,
+                    html: icon.parentElement?.dataset.content,
+                };
+            }
 
-        icons.forEach((icon) => {
+            // Support legacy icons used before MDL-77856 (4.2).
-            // Search the feedback for the icon.
+            if (icon.hasAttribute('tappable')) {
-            const span = <HTMLElement | undefined> icon.parentElement?.querySelector('.feedbackspan.accesshide');
+                return {
+                    element: icon,
+                    html: icon.parentElement?.querySelector('.feedbackspan.accesshide')?.innerHTML,
+                };
+            }
 
-            if (!span) {
+            return null;
+        };
+
+        icons.forEach(icon => {
+            const target = getClickableFeedback(icon);
+
+            if (!target || !target.html) {
                 return;
             }
 
             // There's a hidden feedback, show it when the icon is clicked.
-            icon.addEventListener('click', () => {
+            target.element.addEventListener('click', () => {
-                CoreTextUtils.viewText(title, span.innerHTML, {
+                CoreTextUtils.viewText(title, target.html ?? '', {
                     component: component,
                     componentId: componentId,
                     filter: true,

src/theme/components/format-text.scss

@@ -112,6 +112,11 @@ core-format-text {
         margin: 0;
         padding: 10px 0;
     }
+
+    .btn-link {
+        background: none;
+    }
+
 }
 
 @keyframes loading {