Add restricted padlocks to radio buttons.

Change-Id: Ibaf312a4c6c5fd9126ab7d45ccb094fc1bd46a1f

res/layout/redaction_interstitial.xml

@@ -41,14 +41,14 @@
             android:layout_marginEnd="?android:attr/listPreferredItemPaddingEnd"
             android:checkedButton="@+id/redact_sensitive">
 
-        <RadioButton
+        <com.android.settings.RestrictedRadioButton
                 android:id="@+id/show_all"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="@dimen/redaction_vertical_margins"
                 android:text="@string/lock_screen_notifications_summary_show" />
 
-        <RadioButton
+        <com.android.settings.RestrictedRadioButton
                 android:id="@+id/redact_sensitive"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"

src/com/android/settings/RestrictedRadioButton.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settings;
+
+import android.content.Context;
+import android.graphics.PorterDuff;
+import android.util.AttributeSet;
+import android.widget.RadioButton;
+import android.widget.TextView;
+
+import java.util.List;
+
+import com.android.settingslib.RestrictedLockUtils;
+
+import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
+
+public class RestrictedRadioButton extends RadioButton {
+    private Context mContext;
+    private boolean mDisabledByAdmin;
+    private EnforcedAdmin mEnforcedAdmin;
+
+    public RestrictedRadioButton(Context context) {
+        this(context, null);
+    }
+
+    public RestrictedRadioButton(Context context, AttributeSet attrs) {
+        this(context, attrs, com.android.internal.R.attr.radioButtonStyle);
+    }
+
+    public RestrictedRadioButton(Context context, AttributeSet attrs, int defStyleAttr) {
+        this(context, attrs, defStyleAttr, 0);
+    }
+
+    public RestrictedRadioButton(Context context, AttributeSet attrs, int defStyleAttr,
+            int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+        mContext = context;
+    }
+
+    @Override
+    public boolean performClick() {
+        if (mDisabledByAdmin) {
+            RestrictedLockUtils.sendShowAdminSupportDetailsIntent(mContext, mEnforcedAdmin);
+            return true;
+        }
+        return super.performClick();
+    }
+
+    public void setDisabledByAdmin(EnforcedAdmin admin) {
+        final boolean disabled = (admin != null);
+        mEnforcedAdmin = admin;
+        if (mDisabledByAdmin != disabled) {
+            mDisabledByAdmin = disabled;
+            RestrictedLockUtils.setTextViewAsDisabledByAdmin(mContext,
+                    (TextView) this, mDisabledByAdmin);
+            if (mDisabledByAdmin) {
+                getButtonDrawable().setColorFilter(mContext.getColor(R.color.disabled_text_color),
+                        PorterDuff.Mode.MULTIPLY);
+            } else {
+                getButtonDrawable().clearColorFilter();
+            }
+        }
+    }
+
+    public boolean isDisabledByAdmin() {
+        return mDisabledByAdmin;
+    }
+}

src/com/android/settings/notification/RedactionInterstitial.java

@@ -16,7 +16,6 @@
 
 package com.android.settings.notification;
 
-import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
@@ -29,8 +28,15 @@ import android.widget.RadioGroup;
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.settings.R;
+import com.android.settings.RestrictedRadioButton;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settingslib.RestrictedLockUtils;
+
+import static android.app.admin.DevicePolicyManager.KEYGUARD_DISABLE_SECURE_NOTIFICATIONS;
+import static android.app.admin.DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS;
+
+import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
 
 public class RedactionInterstitial extends SettingsActivity {
 
@@ -52,10 +58,6 @@ public class RedactionInterstitial extends SettingsActivity {
      * available to be launched.
      */
     public static Intent createStartIntent(Context ctx) {
-        if (isSecureNotificationsDisabled(ctx)) {
-            // If there is no choices for the user, we should not start the activity.
-            return null;
-        } else {
         return new Intent(ctx, RedactionInterstitial.class)
                 .putExtra(EXTRA_PREFS_SHOW_BUTTON_BAR, true)
                 .putExtra(EXTRA_PREFS_SET_BACK_TEXT, (String) null)
@@ -64,28 +66,13 @@ public class RedactionInterstitial extends SettingsActivity {
                 .putExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID,
                         R.string.lock_screen_notifications_interstitial_title);
     }
-    }
-
-    private static boolean isSecureNotificationsDisabled(Context context) {
-        final DevicePolicyManager dpm =
-                (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
-        return dpm != null && (dpm.getKeyguardDisabledFeatures(null)
-                & DevicePolicyManager.KEYGUARD_DISABLE_SECURE_NOTIFICATIONS) != 0;
-    }
-
-    private static boolean isUnredactedNotificationsDisabled(Context context) {
-        final DevicePolicyManager dpm =
-                (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
-        return dpm != null && (dpm.getKeyguardDisabledFeatures(null)
-                & DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS) != 0;
-    }
 
     public static class RedactionInterstitialFragment extends SettingsPreferenceFragment
             implements RadioGroup.OnCheckedChangeListener {
 
         private RadioGroup mRadioGroup;
-        private RadioButton mShowAllButton;
+        private RestrictedRadioButton mShowAllButton;
-        private RadioButton mRedactSensitiveButton;
+        private RestrictedRadioButton mRedactSensitiveButton;
 
         @Override
         protected int getMetricsCategory() {
@@ -102,26 +89,32 @@ public class RedactionInterstitial extends SettingsActivity {
         public void onViewCreated(View view, Bundle savedInstanceState) {
             super.onViewCreated(view, savedInstanceState);
             mRadioGroup = (RadioGroup) view.findViewById(R.id.radio_group);
-            mShowAllButton = (RadioButton) view.findViewById(R.id.show_all);
+            mShowAllButton = (RestrictedRadioButton) view.findViewById(R.id.show_all);
-            mRedactSensitiveButton = (RadioButton) view.findViewById(R.id.redact_sensitive);
+            mRedactSensitiveButton = (RestrictedRadioButton) view.findViewById(R.id.redact_sensitive);
 
             mRadioGroup.setOnCheckedChangeListener(this);
-
-            // Disable buttons according to policy.
-            if (isSecureNotificationsDisabled(getActivity())) {
-                mShowAllButton.setEnabled(false);
-                mRedactSensitiveButton.setEnabled(false);
-            } else if (isUnredactedNotificationsDisabled(getActivity())) {
-                mShowAllButton.setEnabled(false);
-            }
         }
 
         @Override
         public void onResume() {
             super.onResume();
+            // Disable buttons according to policy.
+
+            checkNotificationFeaturesAndSetDisabled(mShowAllButton,
+                    KEYGUARD_DISABLE_SECURE_NOTIFICATIONS |
+                    KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
+            checkNotificationFeaturesAndSetDisabled(mRedactSensitiveButton,
+                    KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
             loadFromSettings();
         }
 
+        private void checkNotificationFeaturesAndSetDisabled(RestrictedRadioButton button,
+                int keyguardNotifications) {
+            EnforcedAdmin admin = RestrictedLockUtils.checkIfKeyguardNotificationFeaturesDisabled(
+                    getActivity(), keyguardNotifications);
+            button.setDisabledByAdmin(admin);
+        }
+
         private void loadFromSettings() {
             final boolean enabled = Settings.Secure.getInt(getContentResolver(),
                         Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, 0) != 0;
@@ -130,9 +123,9 @@ public class RedactionInterstitial extends SettingsActivity {
 
             int checkedButtonId = R.id.hide_all;
             if (enabled) {
-                if (show && mShowAllButton.isEnabled()) {
+                if (show && !mShowAllButton.isDisabledByAdmin()) {
                     checkedButtonId = R.id.show_all;
-                } else if (mRedactSensitiveButton.isEnabled()) {
+                } else if (!mRedactSensitiveButton.isDisabledByAdmin()) {
                     checkedButtonId = R.id.redact_sensitive;
                 }
             }