/*
 * Copyright 2024 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 androidx.pdf;

import androidx.annotation.RestrictTo;

/**
 * The state of the view hierarchy.
 */
@RestrictTo(RestrictTo.Scope.LIBRARY)
public enum ViewState {
    /**
     * The view hierarchy does not exist yet or anymore.
     */
    NO_VIEW,

    /**
     * The view hierarchy exists but may be showing no or partial contents.
     */
    VIEW_CREATED,

    /**
     * The view hierarchy is ready for prime time: all Views are populated and responding.
     */
    VIEW_READY,

    /**
     * There is no view because this Viewer failed to start up (e.g. broken file).
     */
    ERROR
}