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/*
* Copyright (C) 2019 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.customization.model;
import android.util.Log;
import androidx.annotation.Nullable;
import java.util.List;
/**
* Interface for a class that handles a "Customization" (eg, "Themes", "Clockfaces", etc)
* @param <T> the type of {@link CustomizationOption} that this Manager class provides.
*/
public interface CustomizationManager<T extends CustomizationOption> {
/**
* Callback for applying a customization option.
*/
interface Callback {
/**
* Called after an option was applied successfully.
*/
void onSuccess();
/**
* Called if there was an error applying the customization
* @param throwable Exception thrown if available.
*/
void onError(@Nullable Throwable throwable);
}
/**
* Listener interface for fetching CustomizationOptions
*/
interface OptionsFetchedListener<T extends CustomizationOption> {
/**
* Called when the options have been retrieved.
*/
void onOptionsLoaded(List<T> options);
/**
* Called if there was an error loading grid options
*/
default void onError(@Nullable Throwable throwable) {
if (throwable != null) {
Log.e("OptionsFecthedListener", "Error loading options", throwable);
}
}
}
/**
* Returns whether this customization is available in the system.
*/
boolean isAvailable();
/**
* Applies the given option into the system.
*/
void apply(T option, Callback callback);
/**
* Loads the available options for the type of Customization managed by this class, calling the
* given callback when done.
*/
void fetchOptions(OptionsFetchedListener<T> callback, boolean reload);
}
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