Merge "Add LocalePicker fragment as one of internal components."

3 files changed, 249 insertions, 0 deletions

diff --git a/core/java/com/android/internal/app/LocalePicker.java b/core/java/com/android/internal/app/LocalePicker.java
new file mode 100644
index 0000000..5c2d692
--- /dev/null
+++ b/core/java/com/android/internal/app/LocalePicker.java
@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2010 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.internal.app;
+
+import android.app.Activity;
+import android.app.ActivityManagerNative;
+import android.app.IActivityManager;
+import android.app.ListFragment;
+import android.app.backup.BackupManager;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.util.Log;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import com.android.internal.R;
+
+import java.text.Collator;
+import java.util.Arrays;
+import java.util.Locale;
+
+public class LocalePicker extends ListFragment {
+    private static final String TAG = "LocalePicker";
+    private static final boolean DEBUG = false;
+
+    public static interface LocaleSelectionListener {
+        // You can add any argument if you really need it...
+        public void onLocaleSelected();
+    }
+
+    Loc[] mLocales;
+    String[] mSpecialLocaleCodes;
+    String[] mSpecialLocaleNames;
+
+
+    LocaleSelectionListener mListener;  // default to null
+
+    private static class Loc implements Comparable<Loc> {
+        static Collator sCollator = Collator.getInstance();
+
+        String label;
+        Locale locale;
+
+        public Loc(String label, Locale locale) {
+            this.label = label;
+            this.locale = locale;
+        }
+
+        @Override
+        public String toString() {
+            return this.label;
+        }
+
+        @Override
+        public int compareTo(Loc another) {
+            return sCollator.compare(this.label, another.label);
+        }
+    }
+
+    private void setUpLocaleList() {
+        final Activity activity = getActivity();
+        final Resources resources = activity.getResources();
+        mSpecialLocaleCodes = resources.getStringArray(R.array.special_locale_codes);
+        mSpecialLocaleNames = resources.getStringArray(R.array.special_locale_names);
+
+        final String[] locales = activity.getAssets().getLocales();
+        Arrays.sort(locales);
+        final int origSize = locales.length;
+        Loc[] preprocess = new Loc[origSize];
+        int finalSize = 0;
+        for (int i = 0 ; i < origSize; i++ ) {
+            String s = locales[i];
+            int len = s.length();
+            if (len == 5) {
+                String language = s.substring(0, 2);
+                String country = s.substring(3, 5);
+                Locale l = new Locale(language, country);
+
+                if (finalSize == 0) {
+                    if (DEBUG) {
+                        Log.v(TAG, "adding initial "+ toTitleCase(l.getDisplayLanguage(l)));
+                    }
+                    preprocess[finalSize++] =
+                            new Loc(toTitleCase(l.getDisplayLanguage(l)), l);
+                } else {
+                    // check previous entry:
+                    //  same lang and a country -> upgrade to full name and
+                    //    insert ours with full name
+                    //  diff lang -> insert ours with lang-only name
+                    if (preprocess[finalSize-1].locale.getLanguage().equals(
+                            language)) {
+                        if (DEBUG) {
+                            Log.v(TAG, "backing up and fixing "+
+                                    preprocess[finalSize-1].label+" to "+
+                                    getDisplayName(preprocess[finalSize-1].locale));
+                        }
+                        preprocess[finalSize-1].label = toTitleCase(
+                                getDisplayName(preprocess[finalSize-1].locale));
+                        if (DEBUG) {
+                            Log.v(TAG, "  and adding "+ toTitleCase(getDisplayName(l)));
+                        }
+                        preprocess[finalSize++] =
+                                new Loc(toTitleCase(getDisplayName(l)), l);
+                    } else {
+                        String displayName;
+                        if (s.equals("zz_ZZ")) {
+                            displayName = "Pseudo...";
+                        } else {
+                            displayName = toTitleCase(l.getDisplayLanguage(l));
+                        }
+                        if (DEBUG) {
+                            Log.v(TAG, "adding "+displayName);
+                        }
+                        preprocess[finalSize++] = new Loc(displayName, l);
+                    }
+                }
+            }
+        }
+        mLocales = new Loc[finalSize];
+        for (int i = 0; i < finalSize ; i++) {
+            mLocales[i] = preprocess[i];
+        }
+        Arrays.sort(mLocales);
+        final int layoutId = R.layout.locale_picker_item;
+        final int fieldId = R.id.locale;
+        final ArrayAdapter<Loc> adapter =
+                new ArrayAdapter<Loc>(activity, layoutId, fieldId, mLocales);
+        setListAdapter(adapter);
+    }
+
+    @Override
+    public void onActivityCreated(final Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        setUpLocaleList();
+    }
+
+    public void setLocaleSelectionListener(LocaleSelectionListener listener) {
+        mListener = listener;
+    }
+
+    private static String toTitleCase(String s) {
+        if (s.length() == 0) {
+            return s;
+        }
+
+        return Character.toUpperCase(s.charAt(0)) + s.substring(1);
+    }
+
+    private String getDisplayName(Locale l) {
+        String code = l.toString();
+
+        for (int i = 0; i < mSpecialLocaleCodes.length; i++) {
+            if (mSpecialLocaleCodes[i].equals(code)) {
+                return mSpecialLocaleNames[i];
+            }
+        }
+
+        return l.getDisplayName(l);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        getListView().requestFocus();
+    }
+
+    @Override
+    public void onListItemClick(ListView l, View v, int position, long id) {
+        try {
+            IActivityManager am = ActivityManagerNative.getDefault();
+            Configuration config = am.getConfiguration();
+
+            Loc loc = mLocales[position];
+            config.locale = loc.locale;
+
+            // indicate this isn't some passing default - the user wants this remembered
+            config.userSetLocale = true;
+
+            am.updateConfiguration(config);
+            // Trigger the dirty bit for the Settings Provider.
+            BackupManager.dataChanged("com.android.providers.settings");
+        } catch (RemoteException e) {
+            // Intentionally left blank
+        }
+
+        if (mListener != null) {
+            mListener.onLocaleSelected();
+        }
+    }
+}
\ No newline at end of file
diff --git a/core/res/res/layout/locale_picker_item.xml b/core/res/res/layout/locale_picker_item.xml
new file mode 100644
index 0000000..b63f5ab
--- /dev/null
+++ b/core/res/res/layout/locale_picker_item.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2008 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.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="horizontal"
+    android:layout_height="wrap_content"
+    android:layout_width="match_parent"
+    android:gravity="center_vertical"
+    android:minHeight="?android:attr/listPreferredItemHeight"
+    android:padding="5dip">
+
+    <TextView android:id="@+id/locale"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textAppearance="?android:attr/textAppearanceLarge"
+    />
+</LinearLayout >
diff --git a/core/res/res/values/arrays.xml b/core/res/res/values/arrays.xml
index aeee8af..b618756 100644
--- a/core/res/res/values/arrays.xml
+++ b/core/res/res/values/arrays.xml
@@ -117,4 +117,16 @@
         <item>3</item>
     </integer-array>
 
+    <!-- Used in LocalePicker -->
+    <string-array translatable="false" name="special_locale_codes">
+        <item>zh_CN</item>
+        <item>zh_TW</item>
+    </string-array>
+
+    <!-- Used in LocalePicker -->
+    <string-array translatable="false" name="special_locale_names">
+        <item>中文 (简体)</item>
+        <item>中文 (繁體)</item>
+    </string-array>
+
 </resources>