Add new settings UI to select keyboard layout.

Bug: 6110399
Change-Id: Ib2758bdcdd6b271be402f46c56d41619dc7aecb9

AndroidManifest.xml

@@ -396,6 +396,19 @@
                 android:resource="@id/language_settings" />
         </activity>
 
+        <activity android:name="Settings$KeyboardLayoutPickerActivity"
+                android:label="@string/keyboard_layout_picker_title"
+                android:clearTaskOnLaunch="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+            <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
+                android:value="com.android.settings.inputmethod.KeyboardLayoutPicker" />
+            <meta-data android:name="com.android.settings.TOP_LEVEL_HEADER_ID"
+                android:resource="@id/language_settings" />
+        </activity>
+
         <!-- Keep compatibility with old shortcuts. -->
         <activity-alias android:name="LanguageSettings"
                 android:label="@string/language_keyboard_settings_title"

res/values/strings.xml

@@ -2614,6 +2614,12 @@
     <!-- On Language & input settings screen, setting summary.  Setting for mouse pointer speed. [CHAR LIMIT=35] -->
     <string name="pointer_speed">Pointer speed</string>
 
+    <!-- Keyboard Layout Picker --> <skip />
+    <!-- Title for the keyboard layout picker activity. [CHAR LIMIT=35] -->
+    <string name="keyboard_layout_picker_title">Choose keyboard layout</string>
+    <!-- String to show when no keyboard layouts are available. [CHAR LIMIT=60] -->
+    <string name="keyboard_layout_picker_empty_text">No keyboard layouts are available.</string>
+
     <!-- User dictionary settings --><skip />
     <!-- User dictionary settings, The titlebar text of the User dictionary settings screen. -->
     <string name="user_dict_settings_titlebar">User dictionary</string>

res/xml/language_settings.xml

@@ -36,27 +36,34 @@
         <PreferenceScreen android:key="current_input_method"
                 android:title="@string/current_input_method" />
     </PreferenceCategory>
+
     <PreferenceCategory
             android:key="hard_keyboard"
             android:title="@string/builtin_keyboard_settings_title"
             android:persistent="false">
+        <!-- Additional preference screens are inserted here programmatically
+             with low order values to set the key map of each attached keyboard. -->
+
         <CheckBoxPreference
                 android:key="auto_replace"
                 android:title="@string/auto_replace"
                 android:summaryOn="@string/auto_replace_summary"
                 android:summaryOff="@string/auto_replace_summary"
+                android:order="1000"
                 android:persistent="false"/>
         <CheckBoxPreference
                 android:key="auto_caps"
                 android:title="@string/auto_caps"
                 android:summaryOn="@string/auto_caps_summary"
                 android:summaryOff="@string/auto_caps_summary"
+                android:order="1001"
                 android:persistent="false"/>
         <CheckBoxPreference
                 android:key="auto_punctuate"
                 android:title="@string/auto_punctuate"
                 android:summaryOn="@string/auto_punctuate_summary"
                 android:summaryOff="@string/auto_punctuate_summary"
+                android:order="1002"
                 android:persistent="false"/>
     </PreferenceCategory>
 

src/com/android/settings/Settings.java

@@ -609,6 +609,7 @@ public class Settings extends PreferenceActivity implements ButtonBarHandler {
     public static class WifiSettingsActivity extends Settings { /* empty */ }
     public static class WifiP2pSettingsActivity extends Settings { /* empty */ }
     public static class InputMethodAndLanguageSettingsActivity extends Settings { /* empty */ }
+    public static class KeyboardLayoutPickerActivity extends Settings { /* empty */ }
     public static class InputMethodAndSubtypeEnablerActivity extends Settings { /* empty */ }
     public static class SpellCheckersSettingsActivity extends Settings { /* empty */ }
     public static class LocalePickerActivity extends Settings { /* empty */ }

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

@@ -17,6 +17,7 @@
 package com.android.settings.inputmethod;
 
 import com.android.settings.R;
+import com.android.settings.Settings.KeyboardLayoutPickerActivity;
 import com.android.settings.Settings.SpellCheckersSettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.Utils;
@@ -29,6 +30,8 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.database.ContentObserver;
+import android.hardware.input.InputManager;
+import android.hardware.input.InputManager.KeyboardLayout;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.CheckBoxPreference;
@@ -40,11 +43,15 @@ import android.preference.PreferenceScreen;
 import android.provider.Settings;
 import android.provider.Settings.System;
 import android.text.TextUtils;
+import android.view.InputDevice;
+import android.view.KeyCharacterMap;
+import android.view.KeyCharacterMap.UnavailableException;
 import android.view.inputmethod.InputMethodInfo;
 import android.view.inputmethod.InputMethodManager;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.List;
 import java.util.Set;
 
@@ -68,11 +75,13 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
 
     private int mDefaultInputMethodSelectorVisibility = 0;
     private ListPreference mShowInputMethodSelectorPref;
-    private Preference mLanguagePref;
+    private PreferenceCategory mKeyboardSettingsCategory;
-    private ArrayList<InputMethodPreference> mInputMethodPreferenceList =
-            new ArrayList<InputMethodPreference>();
-    private boolean mHaveHardKeyboard;
     private PreferenceCategory mHardKeyboardCategory;
+    private Preference mLanguagePref;
+    private final ArrayList<InputMethodPreference> mInputMethodPreferenceList =
+            new ArrayList<InputMethodPreference>();
+    private final ArrayList<PreferenceScreen> mHardKeyboardPreferenceList =
+            new ArrayList<PreferenceScreen>();
     private InputMethodManager mImm;
     private List<InputMethodInfo> mImis;
     private boolean mIsOnlyImeSettings;
@@ -108,18 +117,55 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
 
         new VoiceInputOutputSettings(this).onCreate();
 
-        // Hard keyboard
+        // Get references to dynamically constructed categories.
-        final Configuration config = getResources().getConfiguration();
+        mHardKeyboardCategory = (PreferenceCategory)findPreference("hard_keyboard");
-        mHaveHardKeyboard = (config.keyboard == Configuration.KEYBOARD_QWERTY);
+        mKeyboardSettingsCategory = (PreferenceCategory)findPreference(
+                "keyboard_settings_category");
 
-        // IME
+        // Filter out irrelevant features if invoked from IME settings button.
         mIsOnlyImeSettings = Settings.ACTION_INPUT_METHOD_SETTINGS.equals(
                 getActivity().getIntent().getAction());
         getActivity().getIntent().setAction(null);
+        if (mIsOnlyImeSettings) {
+            getPreferenceScreen().removeAll();
+            getPreferenceScreen().addPreference(mHardKeyboardCategory);
+            if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
+                getPreferenceScreen().addPreference(mShowInputMethodSelectorPref);
+            }
+            getPreferenceScreen().addPreference(mKeyboardSettingsCategory);
+        }
+
+        // Build IME preference category.
         mImm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
         mImis = mImm.getInputMethodList();
-        createImePreferenceHierarchy((PreferenceGroup)findPreference("keyboard_settings_category"));
 
+        mKeyboardSettingsCategory.removeAll();
+        if (!mIsOnlyImeSettings) {
+            final PreferenceScreen currentIme = new PreferenceScreen(getActivity(), null);
+            currentIme.setKey(KEY_CURRENT_INPUT_METHOD);
+            currentIme.setTitle(getResources().getString(R.string.current_input_method));
+            mKeyboardSettingsCategory.addPreference(currentIme);
+        }
+
+        mInputMethodPreferenceList.clear();
+        final int N = (mImis == null ? 0 : mImis.size());
+        for (int i = 0; i < N; ++i) {
+            final InputMethodInfo imi = mImis.get(i);
+            final InputMethodPreference pref = getInputMethodPreference(imi, N);
+            mInputMethodPreferenceList.add(pref);
+        }
+
+        if (!mInputMethodPreferenceList.isEmpty()) {
+            Collections.sort(mInputMethodPreferenceList);
+            for (int i = 0; i < N; ++i) {
+                mKeyboardSettingsCategory.addPreference(mInputMethodPreferenceList.get(i));
+            }
+        }
+
+        // Build hard keyboard preference category.
+        updateHardKeyboards();
+
+        // Spell Checker
         final Intent intent = new Intent(Intent.ACTION_MAIN);
         intent.setClass(getActivity(), SpellCheckersSettingsActivity.class);
         final SpellCheckersPreference scp = ((SpellCheckersPreference)findPreference(
@@ -189,7 +235,7 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
         }
 
         // Hard keyboard
-        if (mHaveHardKeyboard) {
+        if (!mHardKeyboardPreferenceList.isEmpty()) {
             for (int i = 0; i < sHardKeyboardKeys.length; ++i) {
                 CheckBoxPreference chkPref = (CheckBoxPreference)
                         mHardKeyboardCategory.findPreference(sHardKeyboardKeys[i]);
@@ -198,6 +244,8 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
             }
         }
 
+        updateHardKeyboards();
+
         // IME
         InputMethodAndSubtypeUtil.loadInputMethodSubtypeList(
                 this, getContentResolver(), mImis, null);
@@ -211,7 +259,7 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
             mShowInputMethodSelectorPref.setOnPreferenceChangeListener(null);
         }
         InputMethodAndSubtypeUtil.saveInputMethodSubtypeList(
-                this, getContentResolver(), mImis, mHaveHardKeyboard);
+                this, getContentResolver(), mImis, !mHardKeyboardPreferenceList.isEmpty());
     }
 
     @Override
@@ -230,7 +278,7 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
             }
         } else if (preference instanceof CheckBoxPreference) {
             final CheckBoxPreference chkPref = (CheckBoxPreference) preference;
-            if (mHaveHardKeyboard) {
+            if (!mHardKeyboardPreferenceList.isEmpty()) {
                 for (int i = 0; i < sHardKeyboardKeys.length; ++i) {
                     if (chkPref == mHardKeyboardCategory.findPreference(sHardKeyboardKeys[i])) {
                         System.putInt(getContentResolver(), sSystemSettingNames[i],
@@ -315,46 +363,57 @@ public class InputMethodAndLanguageSettings extends SettingsPreferenceFragment
         return pref;
     }
 
-    private void createImePreferenceHierarchy(PreferenceGroup root) {
+    private void updateHardKeyboards() {
-        final Preference hardKeyPref = findPreference("hard_keyboard");
+        mHardKeyboardPreferenceList.clear();
-        if (mIsOnlyImeSettings) {
+        if (getResources().getConfiguration().keyboard == Configuration.KEYBOARD_QWERTY) {
-            getPreferenceScreen().removeAll();
+            final InputManager im =
-            if (hardKeyPref != null && mHaveHardKeyboard) {
+                    (InputManager)getActivity().getSystemService(Context.INPUT_SERVICE);
-                getPreferenceScreen().addPreference(hardKeyPref);
+
+            final int[] devices = InputDevice.getDeviceIds();
+            for (int i = 0; i < devices.length; i++) {
+                InputDevice device = InputDevice.getDevice(devices[i]);
+                if (device != null
+                        && (device.getSources() & InputDevice.SOURCE_KEYBOARD) != 0
+                        && device.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
+                    final String inputDeviceDescriptor = device.getDescriptor();
+                    final String keyboardLayoutDescriptor =
+                            im.getInputDeviceKeyboardLayoutDescriptor(inputDeviceDescriptor);
+                    final KeyboardLayout keyboardLayout = keyboardLayoutDescriptor != null ?
+                            im.getKeyboardLayout(keyboardLayoutDescriptor) : null;
+
+                    final Intent intent = new Intent(Intent.ACTION_MAIN);
+                    intent.setClass(getActivity(), KeyboardLayoutPickerActivity.class);
+                    intent.putExtra(KeyboardLayoutPicker.EXTRA_INPUT_DEVICE_DESCRIPTOR,
+                            inputDeviceDescriptor);
+
+                    final PreferenceScreen pref = new PreferenceScreen(getActivity(), null);
+                    pref.setTitle(device.getName());
+                    if (keyboardLayout != null) {
+                        pref.setSummary(keyboardLayout.getLabel());
                     }
-            if (SHOW_INPUT_METHOD_SWITCHER_SETTINGS) {
+                    pref.setIntent(intent);
-                getPreferenceScreen().addPreference(mShowInputMethodSelectorPref);
+                    mHardKeyboardPreferenceList.add(pref);
                 }
-            getPreferenceScreen().addPreference(root);
             }
-        if (hardKeyPref != null) {
+        }
-            if (mHaveHardKeyboard) {
+
-                mHardKeyboardCategory = (PreferenceCategory) hardKeyPref;
+        if (!mHardKeyboardPreferenceList.isEmpty()) {
+            for (int i = mHardKeyboardCategory.getPreferenceCount(); i-- > 0; ) {
+                final Preference pref = mHardKeyboardCategory.getPreference(i);
+                if (pref.getOrder() < 1000) {
+                    mHardKeyboardCategory.removePreference(pref);
+                }
+            }
+
+            Collections.sort(mHardKeyboardPreferenceList);
+            final int count = mHardKeyboardPreferenceList.size();
+            for (int i = 0; i < count; i++) {
+                final Preference pref = mHardKeyboardPreferenceList.get(i);
+                pref.setOrder(i);
+                mHardKeyboardCategory.addPreference(pref);
+            }
         } else {
-                getPreferenceScreen().removePreference(hardKeyPref);
+            getPreferenceScreen().removePreference(mHardKeyboardCategory);
-            }
-        }
-        root.removeAll();
-        mInputMethodPreferenceList.clear();
-
-        if (!mIsOnlyImeSettings) {
-            // Current IME selection
-            final PreferenceScreen currentIme = new PreferenceScreen(getActivity(), null);
-            currentIme.setKey(KEY_CURRENT_INPUT_METHOD);
-            currentIme.setTitle(getResources().getString(R.string.current_input_method));
-            root.addPreference(currentIme);
-        }
-
-        final int N = (mImis == null ? 0 : mImis.size());
-        for (int i = 0; i < N; ++i) {
-            final InputMethodInfo imi = mImis.get(i);
-            final InputMethodPreference pref = getInputMethodPreference(imi, N);
-            mInputMethodPreferenceList.add(pref);
-        }
-
-        Collections.sort(mInputMethodPreferenceList);
-        for (int i = 0; i < N; ++i) {
-            root.addPreference(mInputMethodPreferenceList.get(i));
         }
     }
 

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

@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2012 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 com.android.settings.R;
+
+import android.app.ListFragment;
+import android.app.LoaderManager.LoaderCallbacks;
+import android.content.AsyncTaskLoader;
+import android.content.Context;
+import android.content.Loader;
+import android.hardware.input.InputManager;
+import android.hardware.input.InputManager.KeyboardLayout;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.ListAdapter;
+import android.widget.ListView;
+
+import java.util.Collections;
+import java.util.List;
+
+public class KeyboardLayoutPicker extends ListFragment
+        implements LoaderCallbacks<List<KeyboardLayout>> {
+    private static final String TAG = "KeyboardLayoutPicker";
+
+    private String mInputDeviceDescriptor;
+
+    /**
+     * Intent extra: The input device descriptor of the keyboard whose keyboard
+     * layout is to be changed.
+     */
+    public static final String EXTRA_INPUT_DEVICE_DESCRIPTOR = "input_device_descriptor";
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        mInputDeviceDescriptor = getActivity().getIntent().getStringExtra(
+                EXTRA_INPUT_DEVICE_DESCRIPTOR);
+        if (mInputDeviceDescriptor == null) {
+            Log.e(TAG, "Missing expected intent parameter: " + EXTRA_INPUT_DEVICE_DESCRIPTOR);
+            getActivity().finish();
+        }
+
+        setEmptyText(getActivity().getText(R.string.keyboard_layout_picker_empty_text));
+        getLoaderManager().initLoader(0, null, this);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        getListView().requestFocus();
+    }
+
+    @Override
+    public void onListItemClick(ListView l, View v, int position, long id) {
+        if (mInputDeviceDescriptor != null) {
+            KeyboardLayout c = (KeyboardLayout)l.getItemAtPosition(position);
+            InputManager im = (InputManager)getActivity().getSystemService(Context.INPUT_SERVICE);
+            im.setInputDeviceKeyboardLayoutDescriptor(mInputDeviceDescriptor, c.getDescriptor());
+        }
+
+        getActivity().finish();
+    }
+
+    @Override
+    public Loader<List<KeyboardLayout>> onCreateLoader(int id, Bundle args) {
+        return new KeyboardLayoutLoader(getActivity());
+    }
+
+    @Override
+    public void onLoadFinished(Loader<List<KeyboardLayout>> loader,
+            List<KeyboardLayout> data) {
+        setListAdapter(new KeyboardLayoutAdapter(getActivity(), data));
+    }
+
+    @Override
+    public void onLoaderReset(Loader<List<KeyboardLayout>> loader) {
+        setListAdapter(null);
+    }
+
+    private static final class KeyboardLayoutAdapter
+            extends ArrayAdapter<KeyboardLayout> {
+        public KeyboardLayoutAdapter(Context context, List<KeyboardLayout> list) {
+            super(context, android.R.layout.simple_list_item_1, list);
+        }
+    }
+
+    private static final class KeyboardLayoutLoader
+            extends AsyncTaskLoader<List<KeyboardLayout>> {
+        public KeyboardLayoutLoader(Context context) {
+            super(context);
+        }
+
+        @Override
+        public List<KeyboardLayout> loadInBackground() {
+            InputManager im = (InputManager)getContext().getSystemService(Context.INPUT_SERVICE);
+            List<KeyboardLayout> list = im.getKeyboardLayouts();
+            Collections.sort(list);
+            return list;
+        }
+
+        @Override
+        protected void onStartLoading() {
+            super.onStartLoading();
+            forceLoad();
+        }
+
+        @Override
+        protected void onStopLoading() {
+            super.onStopLoading();
+            cancelLoad();
+        }
+    }
+}