Policy transparency dialog should be shown when SwitchBar is restricted.

After ag/3818911, touch event of Switchbar is delegated to the switch.
When the SwithBar is disabled by admin, switch is GONE and restricted icon
is VISIBLE instead. We should let touch event be delegaed to restricted
icon and show policy transparency dialog when it's clicked in this case.

Cherry-picked from ag/3924516.

Bug: 77898233
Bug: 70206452
Test: Manually via setting disallow_share_location in TestDPC.

Change-Id: Ifa4fa6ebbe7986277f5cd0951a399ea2377a39f9

src/com/android/settings/widget/SwitchBar.java

@@ -25,6 +25,7 @@ import android.os.Parcel;
 import android.os.Parcelable;
 import androidx.annotation.ColorInt;
 import androidx.annotation.StringRes;
+import androidx.annotation.VisibleForTesting;
 import android.text.SpannableStringBuilder;
 import android.text.TextUtils;
 import android.text.style.TextAppearanceSpan;
@@ -132,6 +133,17 @@ public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedC
                 (switchView, isChecked) -> setTextViewLabelAndBackground(isChecked));
 
         mRestrictedIcon = findViewById(R.id.restricted_icon);
+        mRestrictedIcon.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (mDisabledByAdmin) {
+                    mMetricsFeatureProvider.count(mContext,
+                        mMetricsTag + "/switch_bar|restricted", 1);
+                    RestrictedLockUtils.sendShowAdminSupportDetailsIntent(context,
+                        mEnforcedAdmin);
+                }
+            }
+        });
 
         // Default is hide
         setVisibility(View.GONE);
@@ -196,6 +208,11 @@ public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedC
         mSwitch.setEnabled(enabled);
     }
 
+    @VisibleForTesting
+    View getDelegatingView() {
+        return mDisabledByAdmin ? mRestrictedIcon : mSwitch;
+    }
+
     /**
      * If admin is not null, disables the text and switch but keeps the view clickable.
      * Otherwise, calls setEnabled which will enables the entire view including
@@ -216,6 +233,8 @@ public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedC
             mRestrictedIcon.setVisibility(View.GONE);
             setEnabled(true);
         }
+        setTouchDelegate(new TouchDelegate(new Rect(0, 0, getWidth(), getHeight()),
+            getDelegatingView()));
     }
 
     public final ToggleSwitch getSwitch() {
@@ -228,7 +247,8 @@ public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedC
             mSwitch.setOnCheckedChangeListener(this);
             // Make the entire bar work as a switch
             post(() -> setTouchDelegate(
-                    new TouchDelegate(new Rect(0, 0, getWidth(), getHeight()), mSwitch)));
+                    new TouchDelegate(new Rect(0, 0, getWidth(), getHeight()),
+                        getDelegatingView())));
         }
     }
 
@@ -242,7 +262,8 @@ public class SwitchBar extends LinearLayout implements CompoundButton.OnCheckedC
     @Override
     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
         if ((w > 0) && (h > 0)) {
-            setTouchDelegate(new TouchDelegate(new Rect(0, 0, w, h), mSwitch));
+            setTouchDelegate(new TouchDelegate(new Rect(0, 0, w, h),
+                getDelegatingView()));
         }
     }