108 lines
4.3 KiB
Kotlin
108 lines
4.3 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.history
|
|
|
|
import android.view.ViewGroup
|
|
import org.mozilla.fenix.mvi.ViewState
|
|
import org.mozilla.fenix.mvi.Change
|
|
import org.mozilla.fenix.mvi.Action
|
|
import org.mozilla.fenix.mvi.ActionBusFactory
|
|
import org.mozilla.fenix.mvi.UIComponent
|
|
import org.mozilla.fenix.mvi.UIComponentViewModelBase
|
|
import org.mozilla.fenix.mvi.UIComponentViewModelProvider
|
|
import org.mozilla.fenix.test.Mockable
|
|
|
|
data class HistoryItem(val id: Int, val title: String, val url: String, val visitedAt: Long)
|
|
|
|
@Mockable
|
|
class HistoryComponent(
|
|
private val container: ViewGroup,
|
|
bus: ActionBusFactory,
|
|
viewModelProvider: UIComponentViewModelProvider<HistoryState, HistoryChange>
|
|
) :
|
|
UIComponent<HistoryState, HistoryAction, HistoryChange>(
|
|
bus.getManagedEmitter(HistoryAction::class.java),
|
|
bus.getSafeManagedObservable(HistoryChange::class.java),
|
|
viewModelProvider
|
|
) {
|
|
|
|
override fun initView() = HistoryUIView(container, actionEmitter, changesObservable)
|
|
|
|
init {
|
|
bind()
|
|
}
|
|
}
|
|
|
|
data class HistoryState(val items: List<HistoryItem>, val mode: Mode) : ViewState {
|
|
sealed class Mode {
|
|
object Normal : Mode()
|
|
data class Editing(val selectedItems: List<HistoryItem>) : Mode()
|
|
object Deleting : Mode()
|
|
}
|
|
}
|
|
|
|
sealed class HistoryAction : Action {
|
|
data class Open(val item: HistoryItem) : HistoryAction()
|
|
data class EnterEditMode(val item: HistoryItem) : HistoryAction()
|
|
object BackPressed : HistoryAction()
|
|
data class AddItemForRemoval(val item: HistoryItem) : HistoryAction()
|
|
data class RemoveItemForRemoval(val item: HistoryItem) : HistoryAction()
|
|
object SwitchMode : HistoryAction()
|
|
|
|
sealed class Delete : HistoryAction() {
|
|
object All : Delete()
|
|
data class One(val item: HistoryItem) : Delete()
|
|
data class Some(val items: List<HistoryItem>) : Delete()
|
|
}
|
|
}
|
|
|
|
sealed class HistoryChange : Change {
|
|
data class Change(val list: List<HistoryItem>) : HistoryChange()
|
|
data class EnterEditMode(val item: HistoryItem) : HistoryChange()
|
|
object ExitEditMode : HistoryChange()
|
|
data class AddItemForRemoval(val item: HistoryItem) : HistoryChange()
|
|
data class RemoveItemForRemoval(val item: HistoryItem) : HistoryChange()
|
|
object EnterDeletionMode : HistoryChange()
|
|
object ExitDeletionMode : HistoryChange()
|
|
}
|
|
|
|
class HistoryViewModel(
|
|
initialState: HistoryState
|
|
) : UIComponentViewModelBase<HistoryState, HistoryChange>(initialState, reducer) {
|
|
companion object {
|
|
fun create() = HistoryViewModel(HistoryState(emptyList(), HistoryState.Mode.Normal))
|
|
val reducer: (HistoryState, HistoryChange) -> HistoryState = { state, change ->
|
|
when (change) {
|
|
is HistoryChange.Change -> state.copy(mode = HistoryState.Mode.Normal, items = change.list)
|
|
is HistoryChange.EnterEditMode -> state.copy(mode = HistoryState.Mode.Editing(listOf(change.item)))
|
|
is HistoryChange.AddItemForRemoval -> {
|
|
val mode = state.mode
|
|
if (mode is HistoryState.Mode.Editing) {
|
|
val items = mode.selectedItems + listOf(change.item)
|
|
state.copy(mode = mode.copy(selectedItems = items))
|
|
} else {
|
|
state
|
|
}
|
|
}
|
|
is HistoryChange.RemoveItemForRemoval -> {
|
|
var mode = state.mode
|
|
|
|
if (mode is HistoryState.Mode.Editing) {
|
|
val items = mode.selectedItems.filter { it.id != change.item.id }
|
|
mode = if (items.isEmpty()) HistoryState.Mode.Normal else HistoryState.Mode.Editing(items)
|
|
|
|
state.copy(mode = mode)
|
|
} else {
|
|
state
|
|
}
|
|
}
|
|
is HistoryChange.ExitEditMode -> state.copy(mode = HistoryState.Mode.Normal)
|
|
is HistoryChange.EnterDeletionMode -> state.copy(mode = HistoryState.Mode.Deleting)
|
|
is HistoryChange.ExitDeletionMode -> state.copy(mode = HistoryState.Mode.Normal)
|
|
}
|
|
}
|
|
}
|
|
}
|