Disable non-permitted accessibility services and IMEs

Bug: 14469005
Change-Id: I4986f035318854c27ecb92bbe2f0c977d53b6361

2 files changed, 20 insertions, 3 deletions

diff --git a/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java b/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java
index f18694c..d0bc0cc 100644
--- a/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java
+++ b/src/com/android/settings/inputmethod/InputMethodAndLanguageSettings.java
@@ -18,6 +18,7 @@ package com.android.settings.inputmethod;
 
 import android.app.Activity;
 import android.app.Fragment;
+import android.app.admin.DevicePolicyManager;
 import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -34,6 +35,7 @@ import android.hardware.input.InputManager;
 import android.hardware.input.KeyboardLayout;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.UserHandle;
 import android.preference.CheckBoxPreference;
 import android.preference.ListPreference;
 import android.preference.Preference;
@@ -102,6 +104,7 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
     private SettingsObserver mSettingsObserver;
     private Intent mIntentWaitingForResult;
     private InputMethodSettingValuesWrapper mInputMethodSettingValues;
+    private DevicePolicyManager mDpm;
 
     @Override
     public void onCreate(Bundle icicle) {
@@ -175,6 +178,8 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
 
         mHandler = new Handler();
         mSettingsObserver = new SettingsObserver(mHandler, activity);
+        mDpm = (DevicePolicyManager) (getActivity().
+                getSystemService(Context.DEVICE_POLICY_SERVICE));
     }
 
     private void updateInputMethodSelectorSummary(int value) {
@@ -403,6 +408,7 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
                 mKeyboardSettingsCategory.removePreference(pref);
             }
             mInputMethodPreferenceList.clear();
+            List<String> permittedList = mDpm.getPermittedInputMethodsForCurrentUser();
             final Context context = getActivity();
             final List<InputMethodInfo> imis = mShowsOnlyFullImeAndKeyboardList
                     ? mInputMethodSettingValues.getInputMethodList()
@@ -410,8 +416,11 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
             final int N = (imis == null ? 0 : imis.size());
             for (int i = 0; i < N; ++i) {
                 final InputMethodInfo imi = imis.get(i);
+                final boolean isAllowedByOrganization = permittedList == null
+                        || permittedList.contains(imi.getPackageName());
                 final InputMethodPreference pref = new InputMethodPreference(
-                        context, imi, mShowsOnlyFullImeAndKeyboardList /* hasSwitch */, this);
+                        context, imi, mShowsOnlyFullImeAndKeyboardList /* hasSwitch */,
+                        isAllowedByOrganization, this);
                 mInputMethodPreferenceList.add(pref);
             }
             final Collator collator = Collator.getInstance();
diff --git a/src/com/android/settings/inputmethod/InputMethodPreference.java b/src/com/android/settings/inputmethod/InputMethodPreference.java
index 111f79b..5cf5d6a 100755
--- a/src/com/android/settings/inputmethod/InputMethodPreference.java
+++ b/src/com/android/settings/inputmethod/InputMethodPreference.java
@@ -68,6 +68,7 @@ class InputMethodPreference extends SwitchPreference implements OnPreferenceClic
     private final boolean mHasPriorityInSorting;
     private final OnSavePreferenceListener mOnSaveListener;
     private final InputMethodSettingValuesWrapper mInputMethodSettingValues;
+    private final boolean mIsAllowedByOrganization;
 
     private AlertDialog mDialog = null;
 
@@ -78,14 +79,18 @@ class InputMethodPreference extends SwitchPreference implements OnPreferenceClic
      * @param imi The {@link InputMethodInfo} of this preference.
      * @param isImeEnabler true if this preference is the IME enabler that has enable/disable
      *     switches for all available IMEs, not the list of enabled IMEs.
+     * @param isAllowedByOrganization false if the IME has been disabled by a device or profile
+           owner.
      * @param onSaveListener The listener called when this preference has been changed and needs
      *     to save the state to shared preference.
      */
     InputMethodPreference(final Context context, final InputMethodInfo imi,
-            final boolean isImeEnabler, final OnSavePreferenceListener onSaveListener) {
+            final boolean isImeEnabler, final boolean isAllowedByOrganization,
+            final OnSavePreferenceListener onSaveListener) {
         super(context);
         setPersistent(false);
         mImi = imi;
+        mIsAllowedByOrganization = isAllowedByOrganization;
         mOnSaveListener = onSaveListener;
         if (!isImeEnabler) {
             // Hide switch widget.
@@ -178,7 +183,7 @@ class InputMethodPreference extends SwitchPreference implements OnPreferenceClic
                 mImi, getContext());
         // Only when this preference has a switch and an input method should be always enabled,
         // this preference should be disabled to prevent accidentally disabling an input method.
-        setEnabled(!(isAlwaysChecked && isImeEnabler()));
+        setEnabled(!((isAlwaysChecked && isImeEnabler()) || (!mIsAllowedByOrganization)));
         setChecked(mInputMethodSettingValues.isEnabledImi(mImi));
         setSummary(getSummaryString());
     }
@@ -189,6 +194,9 @@ class InputMethodPreference extends SwitchPreference implements OnPreferenceClic
 
     private String getSummaryString() {
         final Context context = getContext();
+        if (!mIsAllowedByOrganization) {
+            return context.getString(R.string.accessibility_feature_or_input_method_not_allowed);
+        }
         final InputMethodManager imm = getInputMethodManager();
         final List<InputMethodSubtype> subtypes = imm.getEnabledInputMethodSubtypeList(mImi, true);
         final ArrayList<CharSequence> subtypeLabels = new ArrayList<>();