Use SwitchPreference for input method subtype enabler

Bug: 15781377
Change-Id: I80fe987e499722af7768147a184934650bbf8385

src/com/android/settings/inputmethod/InputMethodAndSubtypeEnabler.java

@@ -21,11 +21,11 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.os.Bundle;
-import android.preference.CheckBoxPreference;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceChangeListener;
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceScreen;
+import android.preference.TwoStatePreference;
 import android.text.TextUtils;
 import android.view.inputmethod.InputMethodInfo;
 import android.view.inputmethod.InputMethodManager;
@@ -46,7 +46,7 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
     private boolean mHaveHardKeyboard;
     private final HashMap<String, List<Preference>> mInputMethodAndSubtypePrefsMap =
             new HashMap<>();
-    private final HashMap<String, CheckBoxPreference> mAutoSelectionPrefsMap = new HashMap<>();
+    private final HashMap<String, TwoStatePreference> mAutoSelectionPrefsMap = new HashMap<>();
     private InputMethodManager mImm;
     // TODO: Change mInputMethodInfoList to Map
     private List<InputMethodInfo> mInputMethodInfoList;
@@ -130,7 +130,7 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
         for (final String imiId : mAutoSelectionPrefsMap.keySet()) {
             // An auto select subtype preference is changing.
             if (mAutoSelectionPrefsMap.get(imiId) == pref) {
-                final CheckBoxPreference autoSelectionPref = (CheckBoxPreference) pref;
+                final TwoStatePreference autoSelectionPref = (TwoStatePreference) pref;
                 autoSelectionPref.setChecked(isChecking);
                 // Enable or disable subtypes depending on the auto selection preference.
                 setAutoSelectionSubtypesEnabled(imiId, autoSelectionPref.isChecked());
@@ -167,7 +167,7 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
         keyboardSettingsCategory.setTitle(label);
         keyboardSettingsCategory.setKey(imiId);
         // TODO: Use toggle Preference if images are ready.
-        final CheckBoxPreference autoSelectionPref = new CheckBoxPreference(context);
+        final TwoStatePreference autoSelectionPref = new SwitchWithNoTextPreference(context);
         mAutoSelectionPrefsMap.put(imiId, autoSelectionPref);
         keyboardSettingsCategory.addPreference(autoSelectionPref);
         autoSelectionPref.setOnPreferenceChangeListener(this);
@@ -219,7 +219,7 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
     private boolean isNoSubtypesExplicitlySelected(final String imiId) {
         final List<Preference> subtypePrefs = mInputMethodAndSubtypePrefsMap.get(imiId);
         for (final Preference pref : subtypePrefs) {
-            if (pref instanceof CheckBoxPreference && ((CheckBoxPreference)pref).isChecked()) {
+            if (pref instanceof TwoStatePreference && ((TwoStatePreference)pref).isChecked()) {
                 return false;
             }
         }
@@ -228,20 +228,20 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
 
     private void setAutoSelectionSubtypesEnabled(final String imiId,
             final boolean autoSelectionEnabled) {
-        final CheckBoxPreference autoSelectionPref = mAutoSelectionPrefsMap.get(imiId);
+        final TwoStatePreference autoSelectionPref = mAutoSelectionPrefsMap.get(imiId);
         if (autoSelectionPref == null) {
             return;
         }
         autoSelectionPref.setChecked(autoSelectionEnabled);
         final List<Preference> subtypePrefs = mInputMethodAndSubtypePrefsMap.get(imiId);
         for (final Preference pref : subtypePrefs) {
-            if (pref instanceof CheckBoxPreference) {
+            if (pref instanceof TwoStatePreference) {
                 // When autoSelectionEnabled is true, all subtype prefs need to be disabled with
                 // implicitly checked subtypes. In case of false, all subtype prefs need to be
                 // enabled.
                 pref.setEnabled(!autoSelectionEnabled);
                 if (autoSelectionEnabled) {
-                    ((CheckBoxPreference)pref).setChecked(false);
+                    ((TwoStatePreference)pref).setChecked(false);
                 }
             }
         }
@@ -256,7 +256,7 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
         // When targetImiId is null, apply to all subtypes of all IMEs
         for (final InputMethodInfo imi : mInputMethodInfoList) {
             final String imiId = imi.getId();
-            final CheckBoxPreference autoSelectionPref = mAutoSelectionPrefsMap.get(imiId);
+            final TwoStatePreference autoSelectionPref = mAutoSelectionPrefsMap.get(imiId);
             // No need to update implicitly enabled subtypes when the user has unchecked the
             // "subtype auto selection".
             if (autoSelectionPref == null || !autoSelectionPref.isChecked()) {
@@ -277,10 +277,10 @@ public class InputMethodAndSubtypeEnabler extends SettingsPreferenceFragment
             return;
         }
         for (final Preference pref : subtypePrefs) {
-            if (!(pref instanceof CheckBoxPreference)) {
+            if (!(pref instanceof TwoStatePreference)) {
                 continue;
             }
-            final CheckBoxPreference subtypePref = (CheckBoxPreference)pref;
+            final TwoStatePreference subtypePref = (TwoStatePreference)pref;
             subtypePref.setChecked(false);
             if (check) {
                 for (final InputMethodSubtype subtype : implicitlyEnabledSubtypes) {

src/com/android/settings/inputmethod/InputMethodAndSubtypeUtil.java

@@ -18,7 +18,6 @@ package com.android.settings.inputmethod;
 
 import android.content.ContentResolver;
 import android.content.SharedPreferences;
-import android.preference.CheckBoxPreference;
 import android.preference.Preference;
 import android.preference.PreferenceScreen;
 import android.preference.TwoStatePreference;
@@ -186,12 +185,12 @@ class InputMethodAndSubtypeUtil {
                 for (int i = 0; i < subtypeCount; ++i) {
                     InputMethodSubtype subtype = imi.getSubtypeAt(i);
                     final String subtypeHashCodeStr = String.valueOf(subtype.hashCode());
-                    CheckBoxPreference subtypePref = (CheckBoxPreference) context.findPreference(
+                    final TwoStatePreference subtypePref = (TwoStatePreference) context
-                            imiId + subtypeHashCodeStr);
+                            .findPreference(imiId + subtypeHashCodeStr);
                     // In the Configure input method screen which does not have subtype preferences.
                     if (subtypePref == null) continue;
                     if (!subtypePrefFound) {
-                        // Once subtype checkbox is found, subtypeSet needs to be cleared.
+                        // Once subtype preference is found, subtypeSet needs to be cleared.
                         // Because of system change, hashCode value could have been changed.
                         subtypesSet.clear();
                         // If selected subtype preference is disabled, needs to reset.
@@ -283,10 +282,10 @@ class InputMethodAndSubtypeUtil {
         for (final InputMethodInfo imi : inputMethodInfos) {
             final String imiId = imi.getId();
             final Preference pref = context.findPreference(imiId);
-            if (pref instanceof CheckBoxPreference) {
+            if (pref instanceof TwoStatePreference) {
-                final CheckBoxPreference checkBoxPreference = (CheckBoxPreference) pref;
+                final TwoStatePreference subtypePref = (TwoStatePreference) pref;
                 final boolean isEnabled = enabledSubtypes.containsKey(imiId);
-                checkBoxPreference.setChecked(isEnabled);
+                subtypePref.setChecked(isEnabled);
                 if (inputMethodPrefsMap != null) {
                     for (final Preference childPref: inputMethodPrefsMap.get(imiId)) {
                         childPref.setEnabled(isEnabled);
@@ -307,7 +306,7 @@ class InputMethodAndSubtypeUtil {
                 final int subtypeCount = imi.getSubtypeCount();
                 for (int i = 0; i < subtypeCount; ++i) {
                     final InputMethodSubtype subtype = imi.getSubtypeAt(i);
-                    final CheckBoxPreference pref = (CheckBoxPreference) preferenceScreen
+                    final TwoStatePreference pref = (TwoStatePreference) preferenceScreen
                             .findPreference(id + subtype.hashCode());
                     if (pref != null) {
                         pref.setEnabled(enabled);
@@ -336,7 +335,7 @@ class InputMethodAndSubtypeUtil {
                     Log.d(TAG, "--- Set checked state: " + "id" + ", " + hashCode + ", "
                             + enabledSubtypesSet.contains(hashCode));
                 }
-                final CheckBoxPreference pref = (CheckBoxPreference) preferenceScreen
+                final TwoStatePreference pref = (TwoStatePreference) preferenceScreen
                         .findPreference(id + hashCode);
                 if (pref != null) {
                     pref.setChecked(enabledSubtypesSet.contains(hashCode));

src/com/android/settings/inputmethod/InputMethodSubtypePreference.java

@@ -17,7 +17,6 @@
 package com.android.settings.inputmethod;
 
 import android.content.Context;
-import android.preference.CheckBoxPreference;
 import android.preference.Preference;
 import android.text.TextUtils;
 import android.view.inputmethod.InputMethodInfo;
@@ -33,7 +32,7 @@ import java.util.Locale;
  *
  * This preference represents a subtype of an IME. It is used to enable or disable the subtype.
  */
-class InputMethodSubtypePreference extends CheckBoxPreference {
+class InputMethodSubtypePreference extends SwitchWithNoTextPreference {
     private final boolean mIsSystemLocale;
     private final boolean mIsSystemLanguage;
 

src/com/android/settings/inputmethod/SwitchWithNoTextPreference.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2014 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.inputmethod;
+
+import android.content.Context;
+import android.preference.SwitchPreference;
+
+class SwitchWithNoTextPreference extends SwitchPreference {
+    private static final String EMPTY_TEXT = "";
+
+    SwitchWithNoTextPreference(final Context context) {
+        super(context);
+        setSwitchTextOn(EMPTY_TEXT);
+        setSwitchTextOff(EMPTY_TEXT);
+    }
+}