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/*
* Copyright (C) 2015 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.tv.menu;
import android.content.Context;
import com.android.tv.customization.CustomAction;
import java.util.ArrayList;
import java.util.List;
/**
* An adapter of options that can accepts customization data.
*/
public abstract class CustomizableOptionsRowAdapter extends OptionsRowAdapter {
private final List<CustomAction> mCustomActions;
public CustomizableOptionsRowAdapter(Context context, List<CustomAction> customActions) {
super(context);
mCustomActions = customActions;
}
// Subclass should implement this and return list of {@link MenuAction}.
// Custom actions will be added at the first or the last position in addition.
// Note that {@link MenuAction} should have non-negative type
// because negative types are reserved for custom actions.
protected abstract List<MenuAction> createBaseActions();
// Subclass should implement this to perform proper action
// for {@link MenuAction} with the given type returned by {@link createBaseActions}.
protected abstract void executeBaseAction(int type);
@Override
protected List<MenuAction> createActions() {
List<MenuAction> actions = new ArrayList<>(createBaseActions());
if (mCustomActions != null) {
int position = 0;
for (int i = 0; i < mCustomActions.size(); i++) {
// Type of MenuAction should be unique in the Adapter.
int type = -(i + 1);
CustomAction customAction = mCustomActions.get(i);
MenuAction action = new MenuAction(
customAction.getTitle(), type, customAction.getIconDrawable());
if (customAction.isFront()) {
actions.add(position++, action);
} else {
actions.add(action);
}
}
}
return actions;
}
@Override
protected void executeAction(int type) {
if (type < 0) {
int position = -(type + 1);
getMainActivity().startActivitySafe(mCustomActions.get(position).getIntent());
} else {
executeBaseAction(type);
}
}
protected List<CustomAction> getCustomActions() {
return mCustomActions;
}
}
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