174 lines
6.7 KiB
Java
174 lines
6.7 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.keyboard;
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import android.content.SharedPreferences;
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import android.os.Build;
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import android.os.Build.VERSION_CODES;
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import android.util.Log;
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import com.android.inputmethod.latin.R;
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import java.util.Arrays;
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import java.util.Comparator;
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public final class KeyboardTheme {
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private static final String TAG = KeyboardTheme.class.getSimpleName();
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static final String KLP_KEYBOARD_THEME_KEY = "pref_keyboard_layout_20110916";
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static final String LXX_KEYBOARD_THEME_KEY = "pref_keyboard_theme_20140509";
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static final int THEME_ID_ICS = 0;
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static final int THEME_ID_KLP = 2;
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static final int THEME_ID_LXX_DARK = 3;
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static final int DEFAULT_THEME_ID = THEME_ID_KLP;
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private static final KeyboardTheme[] KEYBOARD_THEMES = {
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new KeyboardTheme(THEME_ID_ICS, R.style.KeyboardTheme_ICS,
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VERSION_CODES.BASE),
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new KeyboardTheme(THEME_ID_KLP, R.style.KeyboardTheme_KLP,
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VERSION_CODES.ICE_CREAM_SANDWICH),
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new KeyboardTheme(THEME_ID_LXX_DARK, R.style.KeyboardTheme_LXX_Dark,
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// TODO: Update this constant once the *next* version becomes available.
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VERSION_CODES.CUR_DEVELOPMENT),
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};
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static {
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// Sort {@link #KEYBOARD_THEME} by descending order of {@link #mMinApiVersion}.
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Arrays.sort(KEYBOARD_THEMES, new Comparator<KeyboardTheme>() {
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@Override
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public int compare(final KeyboardTheme lhs, final KeyboardTheme rhs) {
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if (lhs.mMinApiVersion > rhs.mMinApiVersion) return -1;
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if (lhs.mMinApiVersion < rhs.mMinApiVersion) return 1;
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return 0;
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}
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});
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}
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public final int mThemeId;
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public final int mStyleId;
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final int mMinApiVersion;
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// Note: The themeId should be aligned with "themeId" attribute of Keyboard style
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// in values/themes-<style>.xml.
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private KeyboardTheme(final int themeId, final int styleId, final int minApiVersion) {
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mThemeId = themeId;
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mStyleId = styleId;
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mMinApiVersion = minApiVersion;
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}
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@Override
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public boolean equals(final Object o) {
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if (o == this) return true;
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return (o instanceof KeyboardTheme) && ((KeyboardTheme)o).mThemeId == mThemeId;
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}
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@Override
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public int hashCode() {
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return mThemeId;
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}
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private static KeyboardTheme searchKeyboardThemeById(final int themeId) {
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// TODO: This search algorithm isn't optimal if there are many themes.
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for (final KeyboardTheme theme : KEYBOARD_THEMES) {
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if (theme.mThemeId == themeId) {
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return theme;
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}
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}
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return null;
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}
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private static int getSdkVersion() {
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final int sdkVersion = Build.VERSION.SDK_INT;
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// TODO: Consider to remove this check once the *next* version becomes available.
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if (sdkVersion == VERSION_CODES.KITKAT && Build.VERSION.CODENAME.startsWith("L")) {
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return VERSION_CODES.CUR_DEVELOPMENT;
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}
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return sdkVersion;
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}
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static KeyboardTheme getDefaultKeyboardTheme(final SharedPreferences prefs,
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final int sdkVersion) {
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final String klpThemeIdString = prefs.getString(KLP_KEYBOARD_THEME_KEY, null);
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if (klpThemeIdString != null) {
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if (sdkVersion <= VERSION_CODES.KITKAT) {
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try {
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final int themeId = Integer.parseInt(klpThemeIdString);
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final KeyboardTheme theme = searchKeyboardThemeById(themeId);
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if (theme != null) {
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return theme;
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}
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Log.w(TAG, "Unknown keyboard theme in KLP preference: " + klpThemeIdString);
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} catch (final NumberFormatException e) {
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Log.w(TAG, "Illegal keyboard theme in KLP preference: " + klpThemeIdString, e);
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}
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}
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// Remove old preference.
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Log.i(TAG, "Remove KLP keyboard theme preference: " + klpThemeIdString);
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prefs.edit().remove(KLP_KEYBOARD_THEME_KEY).apply();
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}
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// TODO: This search algorithm isn't optimal if there are many themes.
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for (final KeyboardTheme theme : KEYBOARD_THEMES) {
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if (sdkVersion >= theme.mMinApiVersion) {
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return theme;
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}
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}
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return searchKeyboardThemeById(DEFAULT_THEME_ID);
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}
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public static void saveKeyboardThemeId(final String themeIdString,
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final SharedPreferences prefs) {
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saveKeyboardThemeId(themeIdString, prefs, getSdkVersion());
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}
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static String getPreferenceKey(final int sdkVersion) {
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if (sdkVersion <= VERSION_CODES.KITKAT) {
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return KLP_KEYBOARD_THEME_KEY;
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}
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return LXX_KEYBOARD_THEME_KEY;
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}
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static void saveKeyboardThemeId(final String themeIdString, final SharedPreferences prefs,
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final int sdkVersion) {
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final String prefKey = getPreferenceKey(sdkVersion);
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prefs.edit().putString(prefKey, themeIdString).apply();
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}
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public static KeyboardTheme getKeyboardTheme(final SharedPreferences prefs) {
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return getKeyboardTheme(prefs, getSdkVersion());
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}
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static KeyboardTheme getKeyboardTheme(final SharedPreferences prefs, final int sdkVersion) {
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final String lxxThemeIdString = prefs.getString(LXX_KEYBOARD_THEME_KEY, null);
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if (lxxThemeIdString == null) {
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return getDefaultKeyboardTheme(prefs, sdkVersion);
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}
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try {
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final int themeId = Integer.parseInt(lxxThemeIdString);
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final KeyboardTheme theme = searchKeyboardThemeById(themeId);
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if (theme != null) {
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return theme;
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}
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Log.w(TAG, "Unknown keyboard theme in LXX preference: " + lxxThemeIdString);
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} catch (final NumberFormatException e) {
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Log.w(TAG, "Illegal keyboard theme in LXX preference: " + lxxThemeIdString, e);
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}
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// Remove preference that contains unknown or illegal theme id.
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prefs.edit().remove(LXX_KEYBOARD_THEME_KEY).apply();
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return getDefaultKeyboardTheme(prefs, sdkVersion);
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}
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}
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