[M3][SearchBar] Fixed issue that caused the wrong component to be focused on automatically when talkback is active.

PiperOrigin-RevId: 493910945
(cherry picked from commit e2c8cba)

Author: raajkumars

lib/java/com/google/android/material/search/SearchBar.java

@@ -41,6 +41,7 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.EditText;
 import android.widget.ImageButton;
@@ -57,6 +58,8 @@
 import androidx.core.graphics.drawable.DrawableCompat;
 import androidx.core.view.MarginLayoutParamsCompat;
 import androidx.core.view.ViewCompat;
+import androidx.core.view.accessibility.AccessibilityManagerCompat;
+import androidx.core.view.accessibility.AccessibilityManagerCompat.TouchExplorationStateChangeListener;
 import androidx.core.widget.TextViewCompat;
 import androidx.customview.view.AbsSavedState;
 import com.google.android.material.appbar.AppBarLayout;
@@ -130,14 +133,17 @@ public class SearchBar extends Toolbar {
   private final Drawable defaultNavigationIcon;
   private final boolean tintNavigationIcon;
   private final boolean forceDefaultNavigationOnClickListener;
-
   @Nullable private View centerView;
   @Nullable private Integer navigationIconTint;
   @Nullable private Drawable originalNavigationIconBackground;
   private int menuResId = -1;
   private boolean defaultScrollFlagsEnabled;
   private MaterialShapeDrawable backgroundShape;
 
+  @Nullable private final AccessibilityManager accessibilityManager;
+  private final TouchExplorationStateChangeListener touchExplorationStateChangeListener =
+      (boolean enabled) -> setFocusableInTouchMode(enabled);
+
   public SearchBar(@NonNull Context context) {
     this(context, null);
   }
@@ -194,6 +200,35 @@ public SearchBar(@NonNull Context context, @Nullable AttributeSet attrs, int def
     ViewCompat.setElevation(this, elevation);
     initTextView(textAppearanceResId, text, hint);
     initBackground(shapeAppearanceModel, elevation, strokeWidth, strokeColor);
+
+    accessibilityManager =
+        (AccessibilityManager) getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
+    setupTouchExplorationStateChangeListener();
+  }
+
+  private void setupTouchExplorationStateChangeListener() {
+    if (accessibilityManager != null) {
+      // Handle the case where touch exploration is already enabled.
+      if (accessibilityManager.isEnabled() && accessibilityManager.isTouchExplorationEnabled()) {
+        setFocusableInTouchMode(true);
+      }
+
+      // Handle the case where touch exploration state can change while the view is active.
+      addOnAttachStateChangeListener(
+          new OnAttachStateChangeListener() {
+            @Override
+            public void onViewAttachedToWindow(View ignored) {
+              AccessibilityManagerCompat.addTouchExplorationStateChangeListener(
+                  accessibilityManager, touchExplorationStateChangeListener);
+            }
+
+            @Override
+            public void onViewDetachedFromWindow(View ignored) {
+              AccessibilityManagerCompat.removeTouchExplorationStateChangeListener(
+                  accessibilityManager, touchExplorationStateChangeListener);
+            }
+          });
+    }
   }
 
   private void validateAttributes(@Nullable AttributeSet attributeSet) {

lib/java/com/google/android/material/search/SearchView.java

@@ -43,6 +43,7 @@
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
+import android.view.accessibility.AccessibilityEvent;
 import android.widget.EditText;
 import android.widget.FrameLayout;
 import android.widget.ImageButton;
@@ -119,6 +120,7 @@
 @SuppressWarnings("RestrictTo")
 public class SearchView extends FrameLayout implements CoordinatorLayout.AttachedBehavior {
 
+  private static final long TALKBACK_FOCUS_CHANGE_DELAY_MS = 100;
   private static final int DEF_STYLE_RES = R.style.Widget_Material3_SearchView;
 
   final View scrim;
@@ -791,17 +793,28 @@ void requestFocusAndShowKeyboardIfNeeded() {
 
   /** Requests focus on the main {@link EditText} and shows the soft keyboard. */
   public void requestFocusAndShowKeyboard() {
-    editText.post(
+    // Without a delay requesting focus on edit text fails when talkback is active.
+    editText.postDelayed(
         () -> {
-          editText.requestFocus();
+          if (editText.requestFocus()) {
+            // Workaround for talkback issue when clear button is clicked
+            editText.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED);
+          }
           ViewUtils.showKeyboard(editText, useWindowInsetsController);
-        });
+        },
+        TALKBACK_FOCUS_CHANGE_DELAY_MS);
   }
 
   /** Clears focus on the main {@link EditText} and hides the soft keyboard. */
   public void clearFocusAndHideKeyboard() {
-    editText.clearFocus();
-    ViewUtils.hideKeyboard(editText, useWindowInsetsController);
+    editText.post(
+        () -> {
+          editText.clearFocus();
+          if (searchBar != null) {
+            searchBar.requestFocus();
+          }
+          ViewUtils.hideKeyboard(editText, useWindowInsetsController);
+        });
   }
 
   boolean isAdjustNothingSoftInputMode() {