From 3871bfc5d3aff45e498fa2944c27e6eb5d146c8e Mon Sep 17 00:00:00 2001
From: SineStriker <trueful@163.com>
Date: 周三, 20 12月 2023 19:56:32 +0800
Subject: [PATCH] Add mac hot-switch implementations

---
 src/core/contexts/abstractwindowcontext.cpp |   41 +++++++++++++++++++++++++++++++++--------
 1 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/src/core/contexts/abstractwindowcontext.cpp b/src/core/contexts/abstractwindowcontext.cpp
index 0602bdc..535ffc2 100644
--- a/src/core/contexts/abstractwindowcontext.cpp
+++ b/src/core/contexts/abstractwindowcontext.cpp
@@ -18,10 +18,7 @@
         }
         m_host = host;
         m_delegate.reset(delegate);
-        m_windowHandle = m_delegate->hostWindow(m_host);
-        if (m_windowHandle) {
-            winIdChanged(nullptr);
-        }
+        setEnabled(true);
     }
 
     void AbstractWindowContext::setWindowAttribute(const QString &key, const QVariant &var) {
@@ -31,12 +28,12 @@
 
         auto newVar = var;
         auto oldVar = it.value();
-        void *a[] = {
+        void *args[] = {
             &const_cast<QString &>(key),
             &newVar,
             &oldVar,
         };
-        virtual_hook(WindowAttributeChangedHook, a);
+        virtual_hook(WindowAttributeChangedHook, args);
     }
 
     bool AbstractWindowContext::setHitTestVisible(const QObject *obj, bool visible) {
@@ -193,11 +190,39 @@
     }
 
     void AbstractWindowContext::notifyWinIdChange() {
+        if (!m_internalEnabled)
+            return;
+
         auto oldWindow = m_windowHandle;
-        m_windowHandle = m_delegate->window(m_host);
         if (oldWindow == m_windowHandle)
             return;
-        winIdChanged(oldWindow);
+        auto isDestroyed = oldWindow && m_windowHandleCache.isNull();
+        m_windowHandle = m_delegate->window(m_host);
+        m_windowHandleCache = m_windowHandle;
+        winIdChanged(oldWindow, isDestroyed);
+    }
+
+    void AbstractWindowContext::setEnabled(bool enabled) {
+        if (enabled == m_internalEnabled)
+            return;
+        m_internalEnabled = enabled;
+
+        if (enabled) {
+            m_windowHandle = m_delegate->window(m_host);
+            m_windowHandleCache = m_windowHandle;
+            if (m_windowHandle) {
+                winIdChanged(nullptr, false);
+            }
+            return;
+        }
+
+        if (!m_windowHandle)
+            return;
+
+        auto oldWindow = m_windowHandle;
+        m_windowHandle = nullptr;
+        m_windowHandleCache.clear();
+        winIdChanged(oldWindow, false);
     }
 
 }

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