From 059b0fa060b8805c6c6199ccd9a4e13e64ad6995 Mon Sep 17 00:00:00 2001
From: Adrian Roos <roosa@google.com>
Date: Wed, 11 May 2016 15:49:20 -0400
Subject: [PATCH] Allow DPMs to restrict Remote Input on Keyguard

Change-Id: I84b90b4047129794f1397351f9c8624f0048ad41
Fixes: 26981262
---
 res/layout/lockscreen_remote_input.xml        | 16 +++-
 res/layout/redaction_interstitial.xml         |  2 +-
 res/layout/setup_redaction_interstitial.xml   |  2 +-
 .../android/settings/RestrictedCheckBox.java  | 75 +++++++++++++++++++
 .../settings/dashboard/DashboardAdapter.java  |  3 +
 .../ConfigureNotificationSettings.java        |  8 ++
 .../NotificationLockscreenPreference.java     | 33 +++++++-
 .../notification/RedactionInterstitial.java   | 10 ++-
 8 files changed, 138 insertions(+), 11 deletions(-)
 create mode 100644 src/com/android/settings/RestrictedCheckBox.java

diff --git a/res/layout/lockscreen_remote_input.xml b/res/layout/lockscreen_remote_input.xml
index af4bee07782..1c565a3f0c2 100644
--- a/res/layout/lockscreen_remote_input.xml
+++ b/res/layout/lockscreen_remote_input.xml
@@ -15,14 +15,15 @@
   ~ limitations under the License
   -->
 
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
         android:layout_width="match_parent"
         android:layout_height="wrap_content">
 
     <CheckBox
             android:id="@+id/lockscreen_remote_input"
-            android:layout_width="match_parent"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
+            android:layout_weight="1"
             android:layout_marginStart="20dp"
             android:paddingStart="20dp"
             android:paddingEnd="?android:attr/dialogPreferredPadding"
@@ -32,4 +33,13 @@
             android:gravity="center_vertical"
             android:text="@string/lockscreen_remote_input"
         />
-</FrameLayout>
\ No newline at end of file
+
+    <ImageView
+            android:id="@+id/restricted_lock_icon_remote_input"
+            android:layout_width="@dimen/restricted_icon_size"
+            android:layout_height="@dimen/restricted_icon_size"
+            android:src="@drawable/ic_info"
+            android:layout_marginEnd="?android:attr/dialogPreferredPadding"
+            android:layout_gravity="center_vertical"
+            android:scaleType="centerInside" />
+</LinearLayout>
\ No newline at end of file
diff --git a/res/layout/redaction_interstitial.xml b/res/layout/redaction_interstitial.xml
index f48b917ec2c..0c4273f5ab3 100644
--- a/res/layout/redaction_interstitial.xml
+++ b/res/layout/redaction_interstitial.xml
@@ -65,7 +65,7 @@
 
     </RadioGroup>
 
-    <CheckBox
+    <com.android.settings.RestrictedCheckBox
         android:id="@+id/lockscreen_remote_input"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
diff --git a/res/layout/setup_redaction_interstitial.xml b/res/layout/setup_redaction_interstitial.xml
index e0f2d94b361..40b421593ef 100644
--- a/res/layout/setup_redaction_interstitial.xml
+++ b/res/layout/setup_redaction_interstitial.xml
@@ -74,7 +74,7 @@
 
             <!-- Place the checkbox inside RadioGroup and use SuwRadioButton style instead of
                  SuwCheckBox style so that the checkbox and text is aligned with radio buttons. -->
-            <CheckBox
+            <com.android.settings.RestrictedRadioButton
                 android:id="@+id/lockscreen_remote_input"
                 style="@style/SuwRadioButton"
                 android:layout_width="wrap_content"
diff --git a/src/com/android/settings/RestrictedCheckBox.java b/src/com/android/settings/RestrictedCheckBox.java
new file mode 100644
index 00000000000..476df29bf04
--- /dev/null
+++ b/src/com/android/settings/RestrictedCheckBox.java
@@ -0,0 +1,75 @@
+/*
+ * 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 static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
+
+import android.content.Context;
+import android.graphics.PorterDuff;
+import android.util.AttributeSet;
+import android.widget.CheckBox;
+import android.widget.RadioButton;
+import android.widget.TextView;
+
+import com.android.settingslib.RestrictedLockUtils;
+
+/**
+ * A checkbox that can be restricted by device policy, in which case it shows a dialog explaining
+ * what component restricted it.
+ */
+public class RestrictedCheckBox extends CheckBox {
+    private Context mContext;
+    private boolean mDisabledByAdmin;
+    private EnforcedAdmin mEnforcedAdmin;
+
+    public RestrictedCheckBox(Context context) {
+        this(context, null);
+    }
+
+    public RestrictedCheckBox(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        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, this, mDisabledByAdmin);
+            if (mDisabledByAdmin) {
+                getButtonDrawable().setColorFilter(mContext.getColor(R.color.disabled_text_color),
+                        PorterDuff.Mode.MULTIPLY);
+            } else {
+                getButtonDrawable().clearColorFilter();
+            }
+        }
+    }
+
+    public boolean isDisabledByAdmin() {
+        return mDisabledByAdmin;
+    }
+}
\ No newline at end of file
diff --git a/src/com/android/settings/dashboard/DashboardAdapter.java b/src/com/android/settings/dashboard/DashboardAdapter.java
index fadc023a322..3541f1f7b51 100644
--- a/src/com/android/settings/dashboard/DashboardAdapter.java
+++ b/src/com/android/settings/dashboard/DashboardAdapter.java
@@ -283,6 +283,9 @@ public class DashboardAdapter extends RecyclerView.Adapter<DashboardAdapter.Dash
     }
 
     public void disableSuggestion(Tile suggestion) {
+        if (mSuggestionParser == null) {
+            return;
+        }
         if (mSuggestionParser.dismissSuggestion(suggestion)) {
             mContext.getPackageManager().setComponentEnabledSetting(
                     suggestion.intent.getComponent(),
diff --git a/src/com/android/settings/notification/ConfigureNotificationSettings.java b/src/com/android/settings/notification/ConfigureNotificationSettings.java
index 9acac06301e..89aebf9b724 100644
--- a/src/com/android/settings/notification/ConfigureNotificationSettings.java
+++ b/src/com/android/settings/notification/ConfigureNotificationSettings.java
@@ -16,6 +16,7 @@
 
 package com.android.settings.notification;
 
+import android.app.admin.DevicePolicyManager;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.database.ContentObserver;
@@ -177,6 +178,9 @@ public class ConfigureNotificationSettings extends SettingsPreferenceFragment {
                     KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
         }
 
+        mLockscreen.setRemoteInputRestricted(RestrictedLockUtils.checkIfKeyguardFeaturesDisabled(
+                mContext, DevicePolicyManager.KEYGUARD_DISABLE_REMOTE_INPUT, UserHandle.myUserId()));
+
         mLockscreen.setEntries(entries.toArray(new CharSequence[entries.size()]));
         mLockscreen.setEntryValues(values.toArray(new CharSequence[values.size()]));
         updateLockscreenNotifications();
@@ -239,6 +243,10 @@ public class ConfigureNotificationSettings extends SettingsPreferenceFragment {
                     KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
         }
 
+        mLockscreen.setRemoteInputRestricted(RestrictedLockUtils.checkIfKeyguardFeaturesDisabled(
+                mContext, DevicePolicyManager.KEYGUARD_DISABLE_REMOTE_INPUT,
+                mProfileChallengeUserId));
+
         mLockscreenProfile.setEntries(entries.toArray(new CharSequence[entries.size()]));
         mLockscreenProfile.setEntryValues(values.toArray(new CharSequence[values.size()]));
         // Work profile does not support this settings as we do not have a policy to enforce it yet
diff --git a/src/com/android/settings/notification/NotificationLockscreenPreference.java b/src/com/android/settings/notification/NotificationLockscreenPreference.java
index fc61be35d16..01eecf52ed7 100644
--- a/src/com/android/settings/notification/NotificationLockscreenPreference.java
+++ b/src/com/android/settings/notification/NotificationLockscreenPreference.java
@@ -19,6 +19,7 @@ package com.android.settings.notification;
 import com.android.settings.R;
 import com.android.settings.RestrictedListPreference;
 import com.android.settings.Utils;
+import com.android.settingslib.RestrictedLockUtils;
 
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -32,6 +33,7 @@ import android.util.AttributeSet;
 import android.view.View;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
+import android.widget.ImageView;
 import android.widget.ListAdapter;
 import android.widget.ListView;
 
@@ -42,6 +44,7 @@ public class NotificationLockscreenPreference extends RestrictedListPreference {
     private boolean mShowRemoteInput;
     private boolean mRemoteInputCheckBoxEnabled = true;
     private int mUserId = UserHandle.myUserId();
+    private RestrictedLockUtils.EnforcedAdmin mAdminRestrictingRemoteInput;
 
     public NotificationLockscreenPreference(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -51,6 +54,10 @@ public class NotificationLockscreenPreference extends RestrictedListPreference {
         mRemoteInputCheckBoxEnabled = enabled;
     }
 
+    public void setRemoteInputRestricted(RestrictedLockUtils.EnforcedAdmin admin) {
+        mAdminRestrictingRemoteInput = admin;
+    }
+
     @Override
     protected void onClick() {
         final Context context = getContext();
@@ -81,9 +88,19 @@ public class NotificationLockscreenPreference extends RestrictedListPreference {
     protected void onDialogCreated(Dialog dialog) {
         super.onDialogCreated(dialog);
         dialog.create();
-        CheckBox view = (CheckBox) dialog.findViewById(R.id.lockscreen_remote_input);
-        view.setChecked(!mAllowRemoteInput);
-        view.setOnCheckedChangeListener(mListener);
+        CheckBox checkbox = (CheckBox) dialog.findViewById(R.id.lockscreen_remote_input);
+        checkbox.setChecked(!mAllowRemoteInput);
+        checkbox.setOnCheckedChangeListener(mListener);
+        checkbox.setEnabled(mAdminRestrictingRemoteInput == null);
+
+        View restricted = dialog.findViewById(R.id.restricted_lock_icon_remote_input);
+        restricted.setVisibility(mAdminRestrictingRemoteInput == null ? View.GONE : View.VISIBLE);
+
+        if (mAdminRestrictingRemoteInput != null) {
+            checkbox.setClickable(false);
+            dialog.findViewById(com.android.internal.R.id.customPanel)
+                    .setOnClickListener(mListener);
+        }
     }
 
     @Override
@@ -122,7 +139,7 @@ public class NotificationLockscreenPreference extends RestrictedListPreference {
     }
 
     private class Listener implements DialogInterface.OnClickListener,
-            CompoundButton.OnCheckedChangeListener {
+            CompoundButton.OnCheckedChangeListener, View.OnClickListener {
 
         private final DialogInterface.OnClickListener mInner;
         private View mView;
@@ -150,5 +167,13 @@ public class NotificationLockscreenPreference extends RestrictedListPreference {
         public void setView(View view) {
             mView = view;
         }
+
+        @Override
+        public void onClick(View v) {
+            if (v.getId() == com.android.internal.R.id.customPanel) {
+                RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getContext(),
+                        mAdminRestrictingRemoteInput);
+            }
+        }
     }
 }
diff --git a/src/com/android/settings/notification/RedactionInterstitial.java b/src/com/android/settings/notification/RedactionInterstitial.java
index 35e40364eb0..84ae35de401 100644
--- a/src/com/android/settings/notification/RedactionInterstitial.java
+++ b/src/com/android/settings/notification/RedactionInterstitial.java
@@ -16,6 +16,7 @@
 
 package com.android.settings.notification;
 
+import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
@@ -32,6 +33,7 @@ import android.widget.TextView;
 
 import com.android.internal.logging.MetricsProto.MetricsEvent;
 import com.android.settings.R;
+import com.android.settings.RestrictedCheckBox;
 import com.android.settings.RestrictedRadioButton;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
@@ -81,7 +83,7 @@ public class RedactionInterstitial extends SettingsActivity {
         private RadioGroup mRadioGroup;
         private RestrictedRadioButton mShowAllButton;
         private RestrictedRadioButton mRedactSensitiveButton;
-        private CheckBox mRemoteInputCheckbox;
+        private RestrictedCheckBox mRemoteInputCheckbox;
         private int mUserId;
 
         @Override
@@ -102,7 +104,8 @@ public class RedactionInterstitial extends SettingsActivity {
             mShowAllButton = (RestrictedRadioButton) view.findViewById(R.id.show_all);
             mRedactSensitiveButton =
                     (RestrictedRadioButton) view.findViewById(R.id.redact_sensitive);
-            mRemoteInputCheckbox = (CheckBox) view.findViewById(R.id.lockscreen_remote_input);
+            mRemoteInputCheckbox =
+                    (RestrictedCheckBox) view.findViewById(R.id.lockscreen_remote_input);
             mRemoteInputCheckbox.setOnCheckedChangeListener(this);
 
             mRadioGroup.setOnCheckedChangeListener(this);
@@ -129,6 +132,9 @@ public class RedactionInterstitial extends SettingsActivity {
                     KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
             checkNotificationFeaturesAndSetDisabled(mRedactSensitiveButton,
                     KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
+            mRemoteInputCheckbox.setDisabledByAdmin(
+                    RestrictedLockUtils.checkIfKeyguardFeaturesDisabled(getActivity(),
+                            DevicePolicyManager.KEYGUARD_DISABLE_REMOTE_INPUT, mUserId));
             loadFromSettings();
         }