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/**
* Android ownCloud News
*
* @author David Luhmer
* @copyright 2013 David Luhmer david-dev@live.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
package de.luhmer.owncloudnewsreader.helper;
import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.os.Build;
import android.util.Log;
import androidx.appcompat.app.AppCompatDelegate;
import de.luhmer.owncloudnewsreader.R;
import de.luhmer.owncloudnewsreader.SettingsActivity;
public class ThemeChooser {
private static final String TAG = ThemeChooser.class.getCanonicalName();
public enum THEME { LIGHT, DARK, OLED }
// Contains the selected theme defined in the settings (used for checking whether the app needs
// to restart after changing the theme
private static Integer mSelectedThemeFromPreferences;
private static Boolean mOledMode;
private static SharedPreferences mPrefs;
// Contains the current selected theme
private static THEME mSelectedTheme = THEME.LIGHT;
private ThemeChooser() { }
public static void chooseTheme(Activity act) {
int defaultNightMode;
switch(getSelectedThemeFromPreferences(false)) {
case 0: // Auto (Light / Dark)
Log.v(TAG, "Auto (Light / Dark)");
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.P) {
defaultNightMode = AppCompatDelegate.MODE_NIGHT_AUTO_TIME;
} else { // Android 10+ (Q) supports a system-wide dark mode
defaultNightMode = AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM;
}
mSelectedTheme = THEME.LIGHT;
break;
case 1: // Light Theme
Log.v(TAG, "Light");
defaultNightMode = AppCompatDelegate.MODE_NIGHT_NO;
mSelectedTheme = THEME.LIGHT;
break;
case 2: // Dark Theme
Log.v(TAG, "Dark");
defaultNightMode = AppCompatDelegate.MODE_NIGHT_YES;
mSelectedTheme = THEME.DARK;
break;
default:
// This should never happen - just in case.. use the light theme..
Log.v(TAG, "Default");
defaultNightMode = AppCompatDelegate.MODE_NIGHT_AUTO_TIME;
mSelectedTheme = THEME.LIGHT;
break;
}
act.setTheme(R.style.AppTheme);
AppCompatDelegate.setDefaultNightMode(defaultNightMode);
}
public static void afterOnCreate(Activity act) {
//int uiNightMode = Configuration.UI_MODE_NIGHT_NO;
if(isDarkTheme(act)) {
mSelectedTheme = THEME.DARK; // this is required for auto mode at night
if (isOledMode(false) && isDarkTheme(act)) {
act.setTheme(R.style.AppThemeOLED);
Log.v(TAG, "activate OLED mode");
//uiNightMode = Configuration.UI_MODE_NIGHT_YES;
AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
mSelectedTheme = THEME.OLED;
}
}
/*
Configuration newConfig = new Configuration(act.getResources().getConfiguration());
newConfig.uiMode &= ~Configuration.UI_MODE_NIGHT_MASK;
newConfig.uiMode |= uiNightMode;
act.getResources().updateConfiguration(newConfig, null);
*/
}
/**
* Returns true if automatic theme selection is enabled.
* Otherwise it'll return false
*/
public static boolean isAutoThemeSelectionEnabled() {
int selectedTheme = getSelectedThemeFromPreferences(false);
return selectedTheme == 0; // 0 => Auto (Light / Dark)
}
// Check if the currently loaded theme is different from the one set in the settings, or if OLED mode changed
public static boolean themeRequiresRestartOfUI() {
boolean themeChanged = !mSelectedThemeFromPreferences.equals(getSelectedThemeFromPreferences(true));
boolean oledChanged = !mOledMode.equals(isOledMode(true));
Log.v(TAG, "themeChanged: " + themeChanged + "; oledChanged: " + oledChanged);
return themeChanged || oledChanged;
}
private static boolean isDarkTheme(Context context) {
switch(AppCompatDelegate.getDefaultNightMode()) {
case AppCompatDelegate.MODE_NIGHT_YES:
Log.v(TAG, "MODE_NIGHT_YES (Dark Theme)");
return true;
case AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM:
case AppCompatDelegate.MODE_NIGHT_AUTO:
//Log.v(TAG, "MODE_NIGHT_AUTO");
int nightModeFlags = context.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
if(Configuration.UI_MODE_NIGHT_YES == nightModeFlags) {
Log.v(TAG, "MODE_NIGHT_AUTO (Dark Theme)");
return true;
}
Log.v(TAG, "MODE_NIGHT_AUTO (Light Theme)");
return false;
case AppCompatDelegate.MODE_NIGHT_NO:
Log.v(TAG, "MODE_NIGHT_NO (Light Theme)");
return false;
default:
Log.v(TAG, "Undefined Night-Mode");
return false;
}
}
public static boolean isOledMode(boolean forceReloadCache) {
if(mOledMode == null || forceReloadCache) {
mOledMode = mPrefs.getBoolean(SettingsActivity.CB_OLED_MODE, false);
}
return mOledMode;
}
public static THEME getSelectedTheme() {
return mSelectedTheme;
}
private static int getSelectedThemeFromPreferences(boolean forceReloadCache) {
if(mSelectedThemeFromPreferences == null || forceReloadCache) {
mSelectedThemeFromPreferences = Integer.parseInt(mPrefs.getString(SettingsActivity.SP_APP_THEME, "0"));
}
return mSelectedThemeFromPreferences;
}
public static void init(SharedPreferences prefs) {
mPrefs = prefs;
getSelectedThemeFromPreferences(true); // Init cache
isOledMode(true); // Init cache
}
}
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