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/*
* Copyright (C) 2020 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.settings.accessibility;
import android.content.ContentResolver;
import android.content.Context;
import android.provider.Settings;
import androidx.annotation.IntDef;
import com.android.settings.R;
import com.google.common.primitives.Ints;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/** Class to provide magnification capabilities. */
public final class MagnificationCapabilities {
private static final String KEY_CAPABILITY =
Settings.Secure.ACCESSIBILITY_MAGNIFICATION_CAPABILITY;
/**
* Annotation for supported magnification mode.
*
* @see Settings.Secure#ACCESSIBILITY_MAGNIFICATION_CAPABILITY
*/
@Retention(RetentionPolicy.SOURCE)
@IntDef({
MagnificationMode.NONE,
MagnificationMode.FULLSCREEN,
MagnificationMode.WINDOW,
MagnificationMode.ALL,
})
public @interface MagnificationMode {
int NONE = Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_NONE;
int FULLSCREEN = Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_FULLSCREEN;
int WINDOW = Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_WINDOW;
int ALL = Settings.Secure.ACCESSIBILITY_MAGNIFICATION_MODE_ALL;
}
/**
* Gets the summary for the given {@code capabilities}.
*
* @param context A {@link Context}.
* @param capabilities Magnification capabilities {@link MagnificationMode}
* @return The summary text represents the given capabilities
*/
public static String getSummary(Context context, @MagnificationMode int capabilities) {
final String[] summaries = context.getResources().getStringArray(
R.array.magnification_mode_summaries);
final int[] values = context.getResources().getIntArray(
R.array.magnification_mode_values);
final int idx = Ints.indexOf(values, capabilities);
return summaries[idx == /* no index exist */ -1 ? 0 : idx];
}
/**
* Sets the magnification capabilities {@link MagnificationMode} to settings key. This
* overwrites any existing capabilities.
*
* @param context A {@link Context}.
* @param capabilities Magnification capabilities {@link MagnificationMode}
*/
public static void setCapabilities(Context context, @MagnificationMode int capabilities) {
final ContentResolver contentResolver = context.getContentResolver();
Settings.Secure.putIntForUser(contentResolver, KEY_CAPABILITY, capabilities,
contentResolver.getUserId());
}
/**
* Returns the magnification capabilities {@link MagnificationMode} from setting's key. May be
* default value {@link MagnificationMode#FULLSCREEN} if not set.
*
* @param context A {@link Context}.
* @return The magnification capabilities {@link MagnificationMode}
*/
@MagnificationMode
public static int getCapabilities(Context context) {
final ContentResolver contentResolver = context.getContentResolver();
return Settings.Secure.getIntForUser(contentResolver, KEY_CAPABILITY,
MagnificationMode.FULLSCREEN, contentResolver.getUserId());
}
private MagnificationCapabilities() {}
}
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