From 804a5d0fda8120c3641945630a6d57c3493a92d9 Mon Sep 17 00:00:00 2001
From: shannon <shannon@joinmastodon.org>
Date: Wed, 18 Dec 2024 10:52:39 -0500
Subject: [PATCH] Control the height of the compose window a little better.

Avoids the known hang, which was caused by getting stuck in a loop setting the frame back and forth over and over. Looked like it was adding and then removing (and then adding, etc) the height of a single line of text. Possible the username was shifting back and forth between truncating and wrapping, but have not confirmed that.

Fixes #705 IOS client consistently hangs when writing new post at ~= 150 chars
---
 .../ComposeContentViewModel+DataSource.swift             | 9 ++++++---
 .../TableViewCell/ComposeContentTableViewCell.swift      | 7 +++++++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel+DataSource.swift b/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel+DataSource.swift
index 7806a1c010..6e839d227e 100644
--- a/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel+DataSource.swift
+++ b/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/ComposeContentViewModel+DataSource.swift
@@ -52,9 +52,12 @@ extension ComposeContentViewModel {
                 guard let self = self else { return }
                 guard self.composeContentTableViewCellIsInTableView(tableView) else { return }
                 UIView.performWithoutAnimation {
-                    tableView.beginUpdates()
-                    self.composeContentTableViewCell.frame.size.height = height
-                    tableView.endUpdates()                    
+                    if height != self.composeContentTableViewCell.contentHeight {
+                        tableView.beginUpdates()
+                        self.composeContentTableViewCell.contentHeight = height
+                        self.composeContentTableViewCell.invalidateIntrinsicContentSize()
+                        tableView.endUpdates()
+                    }
                 }
             }
             .store(in: &disposeBag)
diff --git a/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/TableViewCell/ComposeContentTableViewCell.swift b/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/TableViewCell/ComposeContentTableViewCell.swift
index c81da3be34..5a70439260 100644
--- a/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/TableViewCell/ComposeContentTableViewCell.swift
+++ b/MastodonSDK/Sources/MastodonUI/Scene/ComposeContent/TableViewCell/ComposeContentTableViewCell.swift
@@ -9,6 +9,13 @@ import UIKit
 import UIHostingConfigurationBackport
 
 final class ComposeContentTableViewCell: UITableViewCell {
+    
+    var contentHeight: CGFloat?
+    
+    override var intrinsicContentSize: CGSize {
+        let superContentSize = super.intrinsicContentSize
+        return CGSize(width: superContentSize.width, height: contentHeight ?? superContentSize.height)
+    }
 
     override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
         super.init(style: style, reuseIdentifier: reuseIdentifier)