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fenix/app/src/main/java/org/mozilla/fenix/library/downloads/DownloadFragmentStore.kt

70 lines
2.1 KiB
Kotlin

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.fenix.library.downloads
import mozilla.components.browser.state.state.content.DownloadState
import mozilla.components.lib.state.Action
import mozilla.components.lib.state.State
import mozilla.components.lib.state.Store
/**
* Class representing a history entry
* @property id Unique id of the download item
* @property fileName File name of the download item
* @property filePath Full path of the download item
* @property size The size in bytes of the download item
* @property contentType The type of file the download is
*/
data class DownloadItem(
val id: String,
val fileName: String?,
val filePath: String,
val size: String,
val contentType: String?,
val status: DownloadState.Status
)
/**
* The [Store] for holding the [DownloadFragmentState] and applying [DownloadFragmentAction]s.
*/
class DownloadFragmentStore(initialState: DownloadFragmentState) :
Store<DownloadFragmentState, DownloadFragmentAction>(initialState, ::downloadStateReducer)
/**
* Actions to dispatch through the `DownloadStore` to modify `DownloadState` through the reducer.
*/
sealed class DownloadFragmentAction : Action {
object ExitEditMode : DownloadFragmentAction()
}
/**
* The state for the Download Screen
* @property items List of DownloadItem to display
* @property mode Current Mode of Download
*/
data class DownloadFragmentState(
val items: List<DownloadItem>,
val mode: Mode
) : State {
sealed class Mode {
open val selectedItems = emptySet<DownloadItem>()
object Normal : Mode()
data class Editing(override val selectedItems: Set<DownloadItem>) : DownloadFragmentState.Mode()
}
}
/**
* The DownloadState Reducer.
*/
private fun downloadStateReducer(
state: DownloadFragmentState,
action: DownloadFragmentAction
): DownloadFragmentState {
return when (action) {
is DownloadFragmentAction.ExitEditMode -> state.copy(mode = DownloadFragmentState.Mode.Normal)
}
}