From 2d2fc799bc698ebf7e7c8bcc394366d0d7bf071b Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周二, 20 2月 2024 18:18:39 +0800
Subject: [PATCH] Partially finish the bug after window close and reshow

---
 src/widgets/widgetwindowagent_mac.cpp |   34 +++++++++++++++++++++++++++++++---
 1 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/src/widgets/widgetwindowagent_mac.cpp b/src/widgets/widgetwindowagent_mac.cpp
index 1d4f320..17156e4 100644
--- a/src/widgets/widgetwindowagent_mac.cpp
+++ b/src/widgets/widgetwindowagent_mac.cpp
@@ -1,3 +1,7 @@
+// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
+// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
+// SPDX-License-Identifier: Apache-2.0
+
 #include "widgetwindowagent_p.h"
 
 #include <QtGui/QtEvents>
@@ -14,6 +18,9 @@
                                           QObject *parent = nullptr)
             : QObject(parent), widget(widget), ctx(ctx) {
             widget->installEventFilter(this);
+            ctx->setSystemButtonAreaCallback([widget](const QSize &) {
+                return getWidgetSceneRect(widget); //
+            });
         }
         ~SystemButtonAreaWidgetEventFilter() override = default;
 
@@ -23,7 +30,7 @@
             switch (event->type()) {
                 case QEvent::Move:
                 case QEvent::Resize: {
-                    ctx->setSystemButtonArea(getWidgetSceneRect(widget));
+                    ctx->virtual_hook(AbstractWindowContext::SystemButtonAreaChangedHook, nullptr);
                     break;
                 }
 
@@ -49,6 +56,8 @@
     /*!
         Sets the widget that acts as the system button area. The system button will be centered in
         its area, it is recommended to place the widget in a layout and set a fixed size policy.
+
+        The system button will be visible in the system title bar area.
     */
     void WidgetWindowAgent::setSystemButtonArea(QWidget *widget) {
         Q_D(WidgetWindowAgent);
@@ -58,13 +67,32 @@
         auto ctx = d->context.get();
         d->systemButtonAreaWidget = widget;
         if (!widget) {
+            d->context->setSystemButtonAreaCallback({});
             d->systemButtonAreaWidgetEventFilter.reset();
-            ctx->setSystemButtonArea({});
             return;
         }
         d->systemButtonAreaWidgetEventFilter =
             std::make_unique<SystemButtonAreaWidgetEventFilter>(widget, ctx);
-        ctx->setSystemButtonArea(getWidgetSceneRect(widget));
+    }
+
+    /*!
+        Returns the the system button area callback.
+    */
+    ScreenRectCallback WidgetWindowAgent::systemButtonAreaCallback() const {
+        Q_D(const WidgetWindowAgent);
+        return d->systemButtonAreaWidget ? nullptr : d->context->systemButtonAreaCallback();
+    }
+
+    /*!
+        Sets the the system button area callback, the \c size of the callback is the native title
+        bar size.
+        
+        The system button position will be updated when the window resizes.
+    */
+    void WidgetWindowAgent::setSystemButtonAreaCallback(const ScreenRectCallback &callback) {
+        Q_D(WidgetWindowAgent);
+        setSystemButtonArea(nullptr);
+        d->context->setSystemButtonAreaCallback(callback);
     }
 
 }
\ No newline at end of file

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