commonMain.app.cash.redwood.ui.OnBackPressedCallback.kt Maven / Gradle / Ivy

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Multiplatform reactive UI using Kotlin and Jetpack Compose

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/*
 * Copyright (C) 2023 Square, Inc.
 *
 * 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 app.cash.redwood.ui

public abstract class OnBackPressedCallback(enabled: Boolean) {
  public var isEnabled: Boolean = enabled
    set(value) {
      field = value
      enabledChangedCallback?.invoke()
    }

  public var enabledChangedCallback: (() -> Unit)? = null

  public abstract fun handleOnBackPressed()
}