From 016a09cf2580e7bbd9feab94da797171e7e011e7 Mon Sep 17 00:00:00 2001
From: 1024jp <1024jp@wolfrosch.com>
Date: Mon, 30 Sep 2024 18:59:25 +0900
Subject: [PATCH] Fix window minimized window initializaiton

---
 CHANGELOG.md                                  |  1 +
 .../DocumentWindowController.swift            | 38 +++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 466667b5f2..7f10b2e3fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@
 
 ### Fixes
 
+- Fix an issue that document windows were not properly initialized when the windows minimized on launch.
 - Fix an issue in the file browser that duplicate folders were displayed after renaming a folder.
 - Fix an issue in the file browser that some actions for the root folder were incorrectly disabled.
 - Fix an issue that changes of insertion formats in the Snippets settings pane were not saved.
diff --git a/CotEditor/Sources/Document Window/DocumentWindowController.swift b/CotEditor/Sources/Document Window/DocumentWindowController.swift
index 72ade90b59..910d534d7b 100644
--- a/CotEditor/Sources/Document Window/DocumentWindowController.swift	
+++ b/CotEditor/Sources/Document Window/DocumentWindowController.swift	
@@ -58,6 +58,8 @@ final class DocumentWindowController: NSWindowController, NSWindowDelegate {
     private var directoryDocument: DirectoryDocument?
     private var hasDirectoryBrowser: Bool  { self.directoryDocument != nil }
     
+    private var needsManualOnAppear = false
+    
     private lazy var editedIndicator: NSView = NSHostingView(rootView: Circle()
         .fill(.tertiary)
         .frame(width: 4, height: 4)
@@ -201,6 +203,23 @@ final class DocumentWindowController: NSWindowController, NSWindowDelegate {
     }
     
     
+    func windowWillMiniaturize(_ notification: Notification) {
+        
+        if self.window?.isVisible == false {
+            self.needsManualOnAppear = true
+        }
+    }
+    
+    
+    func windowDidDeminiaturize(_ notification: Notification) {
+        
+        if self.needsManualOnAppear {
+            self.contentViewController?.performOnAppearProcedure()
+            self.needsManualOnAppear = false
+        }
+    }
+    
+    
     func windowWillEnterFullScreen(_ notification: Notification) {
         
         self.window?.isOpaque = true
@@ -345,6 +364,25 @@ final class DocumentWindowController: NSWindowController, NSWindowDelegate {
 }
 
 
+private extension NSViewController {
+    
+    /// Recursively invokes `viewWillAppear()` and `viewDidAppear()`.
+    ///
+    /// Workaround the issue `viewWillAppear()` and `viewDidAppear()` are not invoked
+    /// on de-miniaturization when the window was initially miniaturized (2024-10, macOS 15, FB15331763).
+    func performOnAppearProcedure() {
+        
+        guard self.isViewShown else { return }
+        
+        self.viewWillAppear()
+        self.viewDidAppear()
+        
+        for child in self.children {
+            child.performOnAppearProcedure()
+        }
+    }
+}
+
 
 // MARK: - Toolbar