Move settings related classes to "settings"

Change-Id: Id170dbfe2dcfc93130b7be4a84615940403ec37f

1 files changed, 333 insertions, 0 deletions

diff --git a/java/src/com/android/inputmethod/latin/settings/Settings.java b/java/src/com/android/inputmethod/latin/settings/Settings.java
new file mode 100644
index 000000000..674263dee
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/settings/Settings.java
@@ -0,0 +1,333 @@
+/*
+ * Copyright (C) 2013 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.pm.ApplicationInfo;
+import android.content.res.Resources;
+import android.preference.PreferenceManager;
+import android.util.Log;
+
+import com.android.inputmethod.latin.AudioAndHapticFeedbackManager;
+import com.android.inputmethod.latin.AdditionalSubtype;
+import com.android.inputmethod.latin.InputAttributes;
+import com.android.inputmethod.latin.R;
+import com.android.inputmethod.latin.utils.LocaleUtils;
+import com.android.inputmethod.latin.utils.LocaleUtils.RunInLocale;
+import com.android.inputmethod.latin.utils.ResourceUtils;
+
+import java.util.HashMap;
+import java.util.Locale;
+
+public final class Settings implements SharedPreferences.OnSharedPreferenceChangeListener {
+    private static final String TAG = Settings.class.getSimpleName();
+    // In the same order as xml/prefs.xml
+    public static final String PREF_GENERAL_SETTINGS = "general_settings";
+    public static final String PREF_AUTO_CAP = "auto_cap";
+    public static final String PREF_VIBRATE_ON = "vibrate_on";
+    public static final String PREF_SOUND_ON = "sound_on";
+    public static final String PREF_POPUP_ON = "popup_on";
+    public static final String PREF_VOICE_MODE = "voice_mode";
+    public static final String PREF_CORRECTION_SETTINGS = "correction_settings";
+    public static final String PREF_EDIT_PERSONAL_DICTIONARY = "edit_personal_dictionary";
+    public static final String PREF_CONFIGURE_DICTIONARIES_KEY = "configure_dictionaries_key";
+    public static final String PREF_AUTO_CORRECTION_THRESHOLD = "auto_correction_threshold";
+    public static final String PREF_SHOW_SUGGESTIONS_SETTING = "show_suggestions_setting";
+    public static final String PREF_MISC_SETTINGS = "misc_settings";
+    public static final String PREF_LAST_USER_DICTIONARY_WRITE_TIME =
+            "last_user_dictionary_write_time";
+    public static final String PREF_ADVANCED_SETTINGS = "pref_advanced_settings";
+    public static final String PREF_KEY_USE_CONTACTS_DICT = "pref_key_use_contacts_dict";
+    public static final String PREF_KEY_USE_DOUBLE_SPACE_PERIOD =
+            "pref_key_use_double_space_period";
+    public static final String PREF_BLOCK_POTENTIALLY_OFFENSIVE =
+            "pref_key_block_potentially_offensive";
+    public static final String PREF_SHOW_LANGUAGE_SWITCH_KEY =
+            "pref_show_language_switch_key";
+    public static final String PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST =
+            "pref_include_other_imes_in_language_switch_list";
+    public static final String PREF_CUSTOM_INPUT_STYLES = "custom_input_styles";
+    public static final String PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY =
+            "pref_key_preview_popup_dismiss_delay";
+    public static final String PREF_BIGRAM_PREDICTIONS = "next_word_prediction";
+    public static final String PREF_GESTURE_SETTINGS = "gesture_typing_settings";
+    public static final String PREF_GESTURE_INPUT = "gesture_input";
+    public static final String PREF_SLIDING_KEY_INPUT_PREVIEW = "pref_sliding_key_input_preview";
+    public static final String PREF_KEY_LONGPRESS_TIMEOUT = "pref_key_longpress_timeout";
+    public static final String PREF_VIBRATION_DURATION_SETTINGS =
+            "pref_vibration_duration_settings";
+    public static final String PREF_KEYPRESS_SOUND_VOLUME =
+            "pref_keypress_sound_volume";
+    public static final String PREF_GESTURE_PREVIEW_TRAIL = "pref_gesture_preview_trail";
+    public static final String PREF_GESTURE_FLOATING_PREVIEW_TEXT =
+            "pref_gesture_floating_preview_text";
+    public static final String PREF_SHOW_SETUP_WIZARD_ICON = "pref_show_setup_wizard_icon";
+
+    public static final String PREF_INPUT_LANGUAGE = "input_language";
+    public static final String PREF_SELECTED_LANGUAGES = "selected_languages";
+    public static final String PREF_DEBUG_SETTINGS = "debug_settings";
+    public static final String PREF_KEY_IS_INTERNAL = "pref_key_is_internal";
+
+    // This preference key is deprecated. Use {@link #PREF_SHOW_LANGUAGE_SWITCH_KEY} instead.
+    // This is being used only for the backward compatibility.
+    private static final String PREF_SUPPRESS_LANGUAGE_SWITCH_KEY =
+            "pref_suppress_language_switch_key";
+
+    public static final String PREF_SEND_FEEDBACK = "send_feedback";
+    public static final String PREF_ABOUT_KEYBOARD = "about_keyboard";
+
+    private Resources mRes;
+    private SharedPreferences mPrefs;
+    private Locale mCurrentLocale;
+    private SettingsValues mSettingsValues;
+
+    private static final Settings sInstance = new Settings();
+
+    public static Settings getInstance() {
+        return sInstance;
+    }
+
+    public static void init(final Context context) {
+        sInstance.onCreate(context);
+    }
+
+    private Settings() {
+        // Intentional empty constructor for singleton.
+    }
+
+    private void onCreate(final Context context) {
+        mRes = context.getResources();
+        mPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        mPrefs.registerOnSharedPreferenceChangeListener(this);
+    }
+
+    public void onDestroy() {
+        mPrefs.unregisterOnSharedPreferenceChangeListener(this);
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(final SharedPreferences prefs, final String key) {
+        if (mSettingsValues == null) {
+            // TODO: Introduce a static function to register this class and ensure that
+            // loadSettings must be called before "onSharedPreferenceChanged" is called.
+            Log.w(TAG, "onSharedPreferenceChanged called before loadSettings.");
+            return;
+        }
+        loadSettings(mCurrentLocale, mSettingsValues.mInputAttributes);
+    }
+
+    public void loadSettings(final Locale locale, final InputAttributes inputAttributes) {
+        mCurrentLocale = locale;
+        final SharedPreferences prefs = mPrefs;
+        final RunInLocale<SettingsValues> job = new RunInLocale<SettingsValues>() {
+            @Override
+            protected SettingsValues job(final Resources res) {
+                return new SettingsValues(prefs, res, inputAttributes);
+            }
+        };
+        mSettingsValues = job.runInLocale(mRes, locale);
+    }
+
+    // TODO: Remove this method and add proxy method to SettingsValues.
+    public SettingsValues getCurrent() {
+        return mSettingsValues;
+    }
+
+    public boolean isInternal() {
+        return mSettingsValues.mIsInternal;
+    }
+
+    public String getWordSeparators() {
+        return mSettingsValues.mWordSeparators;
+    }
+
+    public boolean isWordSeparator(final int code) {
+        return mSettingsValues.isWordSeparator(code);
+    }
+
+    public Locale getCurrentLocale() {
+        return mCurrentLocale;
+    }
+
+    public boolean getBlockPotentiallyOffensive() {
+        return mSettingsValues.mBlockPotentiallyOffensive;
+    }
+
+    // Accessed from the settings interface, hence public
+    public static boolean readKeypressSoundEnabled(final SharedPreferences prefs,
+            final Resources res) {
+        return prefs.getBoolean(Settings.PREF_SOUND_ON,
+                res.getBoolean(R.bool.config_default_sound_enabled));
+    }
+
+    public static boolean readVibrationEnabled(final SharedPreferences prefs,
+            final Resources res) {
+        final boolean hasVibrator = AudioAndHapticFeedbackManager.getInstance().hasVibrator();
+        return hasVibrator && prefs.getBoolean(PREF_VIBRATE_ON,
+                res.getBoolean(R.bool.config_default_vibration_enabled));
+    }
+
+    public static boolean readAutoCorrectEnabled(final String currentAutoCorrectionSetting,
+            final Resources res) {
+        final String autoCorrectionOff = res.getString(
+                R.string.auto_correction_threshold_mode_index_off);
+        return !currentAutoCorrectionSetting.equals(autoCorrectionOff);
+    }
+
+    public static boolean readBlockPotentiallyOffensive(final SharedPreferences prefs,
+            final Resources res) {
+        return prefs.getBoolean(Settings.PREF_BLOCK_POTENTIALLY_OFFENSIVE,
+                res.getBoolean(R.bool.config_block_potentially_offensive));
+    }
+
+    public static boolean readFromBuildConfigIfGestureInputEnabled(final Resources res) {
+        return res.getBoolean(R.bool.config_gesture_input_enabled_by_build_config);
+    }
+
+    public static boolean readGestureInputEnabled(final SharedPreferences prefs,
+            final Resources res) {
+        return readFromBuildConfigIfGestureInputEnabled(res)
+                && prefs.getBoolean(Settings.PREF_GESTURE_INPUT, true);
+    }
+
+    public static boolean readFromBuildConfigIfToShowKeyPreviewPopupSettingsOption(
+            final Resources res) {
+        return res.getBoolean(R.bool.config_enable_show_option_of_key_preview_popup);
+    }
+
+    public static boolean readKeyPreviewPopupEnabled(final SharedPreferences prefs,
+            final Resources res) {
+        final boolean defaultKeyPreviewPopup = res.getBoolean(
+                R.bool.config_default_key_preview_popup);
+        if (!readFromBuildConfigIfToShowKeyPreviewPopupSettingsOption(res)) {
+            return defaultKeyPreviewPopup;
+        }
+        return prefs.getBoolean(PREF_POPUP_ON, defaultKeyPreviewPopup);
+    }
+
+    public static int readKeyPreviewPopupDismissDelay(final SharedPreferences prefs,
+            final Resources res) {
+        return Integer.parseInt(prefs.getString(PREF_KEY_PREVIEW_POPUP_DISMISS_DELAY,
+                Integer.toString(res.getInteger(
+                        R.integer.config_key_preview_linger_timeout))));
+    }
+
+    public static boolean readShowsLanguageSwitchKey(final SharedPreferences prefs) {
+        if (prefs.contains(PREF_SUPPRESS_LANGUAGE_SWITCH_KEY)) {
+            final boolean suppressLanguageSwitchKey = prefs.getBoolean(
+                    PREF_SUPPRESS_LANGUAGE_SWITCH_KEY, false);
+            final SharedPreferences.Editor editor = prefs.edit();
+            editor.remove(PREF_SUPPRESS_LANGUAGE_SWITCH_KEY);
+            editor.putBoolean(PREF_SHOW_LANGUAGE_SWITCH_KEY, !suppressLanguageSwitchKey);
+            editor.apply();
+        }
+        return prefs.getBoolean(PREF_SHOW_LANGUAGE_SWITCH_KEY, true);
+    }
+
+    public static String readPrefAdditionalSubtypes(final SharedPreferences prefs,
+            final Resources res) {
+        final String predefinedPrefSubtypes = AdditionalSubtype.createPrefSubtypes(
+                res.getStringArray(R.array.predefined_subtypes));
+        return prefs.getString(PREF_CUSTOM_INPUT_STYLES, predefinedPrefSubtypes);
+    }
+
+    public static void writePrefAdditionalSubtypes(final SharedPreferences prefs,
+            final String prefSubtypes) {
+        prefs.edit().putString(Settings.PREF_CUSTOM_INPUT_STYLES, prefSubtypes).apply();
+    }
+
+    public static float readKeypressSoundVolume(final SharedPreferences prefs,
+            final Resources res) {
+        final float volume = prefs.getFloat(PREF_KEYPRESS_SOUND_VOLUME, -1.0f);
+        return (volume >= 0) ? volume : readDefaultKeypressSoundVolume(res);
+    }
+
+    public static float readDefaultKeypressSoundVolume(final Resources res) {
+        return Float.parseFloat(
+                ResourceUtils.getDeviceOverrideValue(res, R.array.keypress_volumes));
+    }
+
+    public static int readKeyLongpressTimeout(final SharedPreferences prefs,
+            final Resources res) {
+        final int ms = prefs.getInt(PREF_KEY_LONGPRESS_TIMEOUT, -1);
+        return (ms >= 0) ? ms : readDefaultKeyLongpressTimeout(res);
+    }
+
+    public static int readDefaultKeyLongpressTimeout(final Resources res) {
+        return res.getInteger(R.integer.config_default_longpress_key_timeout);
+    }
+
+    public static int readKeypressVibrationDuration(final SharedPreferences prefs,
+            final Resources res) {
+        final int ms = prefs.getInt(PREF_VIBRATION_DURATION_SETTINGS, -1);
+        return (ms >= 0) ? ms : readDefaultKeypressVibrationDuration(res);
+    }
+
+    public static int readDefaultKeypressVibrationDuration(final Resources res) {
+        return Integer.parseInt(
+                ResourceUtils.getDeviceOverrideValue(res, R.array.keypress_vibration_durations));
+    }
+
+    public static boolean readUsabilityStudyMode(final SharedPreferences prefs) {
+        return prefs.getBoolean(DebugSettings.PREF_USABILITY_STUDY_MODE, true);
+    }
+
+    public static long readLastUserHistoryWriteTime(final SharedPreferences prefs,
+            final String locale) {
+        final String str = prefs.getString(PREF_LAST_USER_DICTIONARY_WRITE_TIME, "");
+        final HashMap<String, Long> map = LocaleUtils.localeAndTimeStrToHashMap(str);
+        if (map.containsKey(locale)) {
+            return map.get(locale);
+        }
+        return 0;
+    }
+
+    public static void writeLastUserHistoryWriteTime(final SharedPreferences prefs,
+            final String locale) {
+        final String oldStr = prefs.getString(PREF_LAST_USER_DICTIONARY_WRITE_TIME, "");
+        final HashMap<String, Long> map = LocaleUtils.localeAndTimeStrToHashMap(oldStr);
+        map.put(locale, System.currentTimeMillis());
+        final String newStr = LocaleUtils.localeAndTimeHashMapToStr(map);
+        prefs.edit().putString(PREF_LAST_USER_DICTIONARY_WRITE_TIME, newStr).apply();
+    }
+
+    public static boolean readUseFullscreenMode(final Resources res) {
+        return res.getBoolean(R.bool.config_use_fullscreen_mode);
+    }
+
+    public static boolean readShowSetupWizardIcon(final SharedPreferences prefs,
+            final Context context) {
+        final boolean enableSetupWizardByConfig = context.getResources().getBoolean(
+                R.bool.config_setup_wizard_available);
+        if (!enableSetupWizardByConfig) {
+            return false;
+        }
+        if (!prefs.contains(Settings.PREF_SHOW_SETUP_WIZARD_ICON)) {
+            final ApplicationInfo appInfo = context.getApplicationInfo();
+            final boolean isApplicationInSystemImage =
+                    (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0;
+            // Default value
+            return !isApplicationInSystemImage;
+        }
+        return prefs.getBoolean(Settings.PREF_SHOW_SETUP_WIZARD_ICON, false);
+    }
+
+    public static boolean isInternal(final SharedPreferences prefs) {
+        return prefs.getBoolean(Settings.PREF_KEY_IS_INTERNAL, false);
+    }
+}