110 lines
3.6 KiB
Swift
110 lines
3.6 KiB
Swift
//
|
|
// Copyright 2020 Signal Messenger, LLC
|
|
// SPDX-License-Identifier: AGPL-3.0-only
|
|
//
|
|
|
|
import LibSignalClient
|
|
import SignalServiceKit
|
|
import SignalUI
|
|
|
|
// Conversation view loads have been decomposed into a series
|
|
// of discrete phases. There's a bunch of common state used
|
|
// by these load phases that is burdensome to pass around.
|
|
// The load contexts gather this state.
|
|
struct CVLoadContext: CVItemBuildingContext {
|
|
|
|
// Properties
|
|
let loadRequest: CVLoadRequest
|
|
let threadViewModel: ThreadViewModel
|
|
let viewStateSnapshot: CVViewStateSnapshot
|
|
let spoilerState: SpoilerRenderState
|
|
let messageLoader: MessageLoader
|
|
let prevRenderState: CVRenderState?
|
|
let transaction: DBReadTransaction
|
|
let avatarBuilder: CVAvatarBuilder
|
|
let localAci: Aci
|
|
|
|
init(
|
|
loadRequest: CVLoadRequest,
|
|
threadViewModel: ThreadViewModel,
|
|
viewStateSnapshot: CVViewStateSnapshot,
|
|
spoilerState: SpoilerRenderState,
|
|
messageLoader: MessageLoader,
|
|
prevRenderState: CVRenderState,
|
|
localAci: Aci,
|
|
transaction: DBReadTransaction,
|
|
) {
|
|
self.loadRequest = loadRequest
|
|
self.threadViewModel = threadViewModel
|
|
self.viewStateSnapshot = viewStateSnapshot
|
|
self.spoilerState = spoilerState
|
|
self.messageLoader = messageLoader
|
|
self.prevRenderState = prevRenderState
|
|
self.transaction = transaction
|
|
self.avatarBuilder = CVAvatarBuilder(transaction: transaction)
|
|
self.localAci = localAci
|
|
}
|
|
|
|
// Convenience Accessors
|
|
var thread: TSThread { threadViewModel.threadRecord }
|
|
}
|
|
|
|
// MARK: -
|
|
|
|
// Conversation view loads have been decomposed into a series
|
|
// of discrete phases. There's a bunch of common state used
|
|
// by these load phases that is burdensome to pass around.
|
|
// The load contexts gather this state; CVItemBuilding provides
|
|
// convenient access to its contents.
|
|
protocol CVItemBuildingContext {
|
|
// Properties
|
|
var threadViewModel: ThreadViewModel { get }
|
|
var viewStateSnapshot: CVViewStateSnapshot { get }
|
|
var transaction: DBReadTransaction { get }
|
|
var avatarBuilder: CVAvatarBuilder { get }
|
|
var localAci: Aci { get }
|
|
var prevRenderState: CVRenderState? { get }
|
|
}
|
|
|
|
// MARK: -
|
|
|
|
extension CVItemBuildingContext {
|
|
// Convenience Accessors
|
|
var thread: TSThread { threadViewModel.threadRecord }
|
|
var threadUniqueId: String { thread.uniqueId }
|
|
var conversationStyle: ConversationStyle { viewStateSnapshot.conversationStyle }
|
|
var mediaCache: CVMediaCache { viewStateSnapshot.mediaCache }
|
|
}
|
|
|
|
// MARK: -
|
|
|
|
struct CVItemBuildingContextImpl: CVItemBuildingContext {
|
|
let prevRenderState: CVRenderState?
|
|
let threadViewModel: ThreadViewModel
|
|
let viewStateSnapshot: CVViewStateSnapshot
|
|
let transaction: DBReadTransaction
|
|
let avatarBuilder: CVAvatarBuilder
|
|
let localAci: Aci
|
|
}
|
|
|
|
// MARK: -
|
|
|
|
protocol CVItemBuilding {
|
|
var itemBuildingContext: CVItemBuildingContext { get }
|
|
}
|
|
|
|
// MARK: -
|
|
|
|
extension CVItemBuilding {
|
|
// Convenience Accessors
|
|
var threadViewModel: ThreadViewModel { itemBuildingContext.threadViewModel }
|
|
var thread: TSThread { itemBuildingContext.thread }
|
|
var threadAssociatedData: ThreadAssociatedData { threadViewModel.associatedData }
|
|
var viewStateSnapshot: CVViewStateSnapshot { itemBuildingContext.viewStateSnapshot }
|
|
var conversationStyle: ConversationStyle { itemBuildingContext.conversationStyle }
|
|
var mediaCache: CVMediaCache { itemBuildingContext.mediaCache }
|
|
var transaction: DBReadTransaction { itemBuildingContext.transaction }
|
|
var avatarBuilder: CVAvatarBuilder { itemBuildingContext.avatarBuilder }
|
|
var localAci: Aci { itemBuildingContext.localAci }
|
|
}
|