Reactions: Show at most 8 reactions

#2510
2026-04-30 05:06:58 +02:00 · 2019-07-03 18:05:20 +02:00
parent b91a8ea71a
commit 2b95ff7305
11 changed files with 325 additions and 44 deletions
@@ -17,14 +17,20 @@
 import Foundation

@objc final class BubbleReactionsViewModel: NSObject, BubbleReactionsViewModelType {
-    
+
+    // MARK: - Constants
+
+    private enum Constants {
+        static let maxItemsWhenLimited: Int = 8
+    }
+
    // MARK: - Properties
    
    // MARK: Private
    
    private let aggregatedReactions: MXAggregatedReactions
-    private let reactionsViewData: [BubbleReactionViewData]
    private let eventId: String
+    private let showAll: Bool
    
    // MARK: Public
    
@@ -34,13 +40,11 @@ import Foundation
    // MARK: - Setup
    
    @objc init(aggregatedReactions: MXAggregatedReactions,
-               eventId: String) {
+               eventId: String,
+               showAll: Bool) {
        self.aggregatedReactions = aggregatedReactions
        self.eventId = eventId
-        
-        self.reactionsViewData = aggregatedReactions.reactions.map { (reactionCount) -> BubbleReactionViewData in
-            return BubbleReactionViewData(emoji: reactionCount.reaction, countString: "\(reactionCount.count)", isCurrentUserReacted: reactionCount.myUserHasReacted)
-        }
+        self.showAll = showAll
    }
    
    // MARK: - Public
@@ -48,7 +52,7 @@ import Foundation
    func process(viewAction: BubbleReactionsViewAction) {
        switch viewAction {
        case .loadData:
-            self.viewDelegate?.bubbleReactionsViewModel(self, didUpdateViewState: .loaded(reactionsViewData: self.reactionsViewData))
+            self.loadData()
        case .tapReaction(let index):
            guard index < self.aggregatedReactions.reactions.count else {
                return
@@ -61,6 +65,31 @@ import Foundation
            }
        case .addNewReaction:
            break
+        case .tapShowAction(.showAll):
+            self.viewModelDelegate?.bubbleReactionsViewModel(self, didShowAllTappedForEventId: self.eventId)
+        case .tapShowAction(.showLess):
+            self.viewModelDelegate?.bubbleReactionsViewModel(self, didShowLessTappedForEventId: self.eventId)
        }
    }
+
+    func loadData() {
+        var reactions = self.aggregatedReactions.reactions
+        var showAllButtonState: BubbleReactionsViewState.ShowAllButtonState = .none
+
+        // Limit displayed reactions if required
+        if reactions.count > Constants.maxItemsWhenLimited {
+            if self.showAll == true {
+                showAllButtonState = .showLess
+            } else {
+                reactions = Array(reactions[0..<Constants.maxItemsWhenLimited])
+                showAllButtonState = .showAll
+            }
+        }
+
+        let reactionsViewData = reactions.map { (reactionCount) -> BubbleReactionViewData in
+            return BubbleReactionViewData(emoji: reactionCount.reaction, countString: "\(reactionCount.count)", isCurrentUserReacted: reactionCount.myUserHasReacted)
+        }
+
+        self.viewDelegate?.bubbleReactionsViewModel(self, didUpdateViewState: .loaded(reactionsViewData: reactionsViewData, showAllButtonState: showAllButtonState))
+    }
 }