Use fragment for keyboard theme settings

Bug: 11866784
Change-Id: Ic50b6eb1bd8f2b823e2c9dfad04d8615bc910936

1 files changed, 114 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/settings/ThemeSettingsFragment.java b/java/src/com/android/inputmethod/latin/settings/ThemeSettingsFragment.java
new file mode 100644
index 000000000..5a3fc3600
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/settings/ThemeSettingsFragment.java
@@ -0,0 +1,114 @@
+/*
+ * 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.inputmethod.latin.settings;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.res.Resources;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.PreferenceScreen;
+
+import com.android.inputmethod.keyboard.KeyboardTheme;
+import com.android.inputmethod.latin.R;
+import com.android.inputmethod.latin.settings.RadioButtonPreference.OnRadioButtonClickedListener;
+
+/**
+ * "Keyboard theme" settings sub screen.
+ */
+public final class ThemeSettingsFragment extends SubScreenFragment
+        implements OnRadioButtonClickedListener {
+    private String mSelectedThemeId;
+
+    static class KeyboardThemePreference extends RadioButtonPreference {
+        final String mThemeId;
+
+        KeyboardThemePreference(final Context context, final String name, final String id) {
+            super(context);
+            setTitle(name);
+            mThemeId = id;
+        }
+    }
+
+    static void updateKeyboardThemeSummary(final Preference pref) {
+        final Resources res = pref.getContext().getResources();
+        final SharedPreferences prefs = pref.getSharedPreferences();
+        final KeyboardTheme keyboardTheme = KeyboardTheme.getKeyboardTheme(prefs);
+        final String keyboardThemeId = String.valueOf(keyboardTheme.mThemeId);
+        final String[] keyboardThemeNames = res.getStringArray(R.array.keyboard_theme_names);
+        final String[] keyboardThemeIds = res.getStringArray(R.array.keyboard_theme_ids);
+        for (int index = 0; index < keyboardThemeNames.length; index++) {
+            if (keyboardThemeId.equals(keyboardThemeIds[index])) {
+                pref.setSummary(keyboardThemeNames[index]);
+                return;
+            }
+        }
+    }
+
+    @Override
+    public void onCreate(final Bundle icicle) {
+        super.onCreate(icicle);
+        addPreferencesFromResource(R.xml.prefs_screen_theme);
+        final PreferenceScreen screen = getPreferenceScreen();
+        final Resources res = getResources();
+        final String[] keyboardThemeNames = res.getStringArray(R.array.keyboard_theme_names);
+        final String[] keyboardThemeIds = res.getStringArray(R.array.keyboard_theme_ids);
+        for (int index = 0; index < keyboardThemeNames.length; index++) {
+            final KeyboardThemePreference pref = new KeyboardThemePreference(
+                    getActivity(), keyboardThemeNames[index], keyboardThemeIds[index]);
+            screen.addPreference(pref);
+            pref.setOnRadioButtonClickedListener(this);
+        }
+        final SharedPreferences prefs = getSharedPreferences();
+        final KeyboardTheme keyboardTheme = KeyboardTheme.getKeyboardTheme(prefs);
+        mSelectedThemeId = String.valueOf(keyboardTheme.mThemeId);
+    }
+
+    @Override
+    public void onRadioButtonClicked(final RadioButtonPreference preference) {
+        if (preference instanceof KeyboardThemePreference) {
+            final KeyboardThemePreference pref = (KeyboardThemePreference)preference;
+            mSelectedThemeId = pref.mThemeId;
+            updateSelected();
+        }
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updateSelected();
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        KeyboardTheme.saveKeyboardThemeId(mSelectedThemeId, getSharedPreferences());
+    }
+
+    private void updateSelected() {
+        final PreferenceScreen screen = getPreferenceScreen();
+        final int count = screen.getPreferenceCount();
+        for (int index = 0; index < count; index++) {
+            final Preference preference = screen.getPreference(index);
+            if (preference instanceof KeyboardThemePreference) {
+                final KeyboardThemePreference pref = (KeyboardThemePreference)preference;
+                final boolean selected = mSelectedThemeId.equals(pref.mThemeId);
+                pref.setSelected(selected);
+            }
+        }
+    }
+}