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/*
* Copyright 2018 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.car.media.browse;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.view.View;
import com.android.car.media.common.MediaItemMetadata;
import java.util.Objects;
/**
* Information necessary to update a {@link BrowseViewHolder}
*/
class BrowseViewData {
/** {@link com.android.car.media.common.MediaItemMetadata} associated with this item */
public final MediaItemMetadata mMediaItem;
/** View type associated with this item */
@NonNull public final BrowseItemViewType mViewType;
/** Current state of this item */
public final State mState;
/** Text associated with this item */
public final CharSequence mText;
/** Click listener to set for this item */
public final View.OnClickListener mOnClickListener;
/**
* Possible states of a view
*/
public enum State {
/** Loading of this item hasn't started yet */
IDLE,
/** There is pending information before this item can be displayed */
LOADING,
/** It was not possible to load metadata for this item */
ERROR,
/** Metadata for this items has been correctly loaded */
LOADED
}
/**
* Creates a {@link BrowseViewData} for a particular {@link MediaItemMetadata}.
*
* @param mediaItem {@link MediaItemMetadata} metadata
* @param viewType view type to use to represent this item
* @param state current item state
* @param onClickListener optional {@link android.view.View.OnClickListener}
*/
BrowseViewData(MediaItemMetadata mediaItem, @NonNull BrowseItemViewType viewType,
@NonNull State state, View.OnClickListener onClickListener) {
mMediaItem = mediaItem;
mViewType = viewType;
mState = state;
mText = null;
mOnClickListener = onClickListener;
}
/**
* Creates a {@link BrowseViewData} for a given text (normally used for headers or footers)
* @param text text to set
* @param viewType view type to use
* @param onClickListener optional {@link android.view.View.OnClickListener}
*/
BrowseViewData(@NonNull CharSequence text, @NonNull BrowseItemViewType viewType,
View.OnClickListener onClickListener) {
mText = text;
mViewType = viewType;
mMediaItem = null;
mState = null;
mOnClickListener = onClickListener;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
BrowseViewData item = (BrowseViewData) o;
return Objects.equals(mMediaItem, item.mMediaItem) &&
mState == item.mState &&
mViewType == item.mViewType;
}
@Override
public int hashCode() {
return Objects.hash(mMediaItem, mState, mViewType);
}
}
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