[FancyZones] Snap out of maximized window into zones with win + left/…

…right arrow (#3097)

* Snap out of maximized window into zones with win + left/right arrow.

* Determine if there is anything to process before swallowing keypress.

src/modules/fancyzones/lib/FancyZones.cpp

@@ -226,6 +226,7 @@ struct FancyZones : public winrt::implements<FancyZones, IFancyZones, IFancyZone
     bool IsNewWorkArea(GUID virtualDesktopId, HMONITOR monitor) noexcept;
 
     void OnEditorExitEvent() noexcept;
+    bool ProcessSnapHotkey() noexcept;
 
     std::vector<std::pair<HMONITOR, RECT>> GetRawMonitorData() noexcept;
     std::vector<HMONITOR> GetMonitorsSorted() noexcept;
@@ -397,7 +398,7 @@ FancyZones::OnKeyDown(PKBDLLHOOKSTRUCT info) noexcept
         }
         else if ((info->vkCode == VK_RIGHT) || (info->vkCode == VK_LEFT))
         {
-            if (m_settings->GetSettings()->overrideSnapHotkeys)
+            if (ProcessSnapHotkey())
             {
                 Trace::FancyZones::OnKeyDown(info->vkCode, win, ctrl, false /*inMoveSize*/);
                 // Win+Left, Win+Right will cycle through Zones in the active ZoneSet when WM_PRIV_LOWLEVELKB's handled
@@ -948,6 +949,24 @@ void FancyZones::OnEditorExitEvent() noexcept
     }
 }
 
+bool FancyZones::ProcessSnapHotkey() noexcept
+{
+    if (m_settings->GetSettings()->overrideSnapHotkeys)
+    {
+        const HMONITOR monitor = MonitorFromWindow(GetForegroundWindow(), MONITOR_DEFAULTTONULL);
+        if (monitor)
+        {
+            auto zoneWindow = m_zoneWindowMap.find(monitor);
+            if (zoneWindow != m_zoneWindowMap.end() &&
+                zoneWindow->second->ActiveZoneSet())
+            {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
 std::vector<HMONITOR> FancyZones::GetMonitorsSorted() noexcept
 {
     std::shared_lock readLock(m_lock);

src/modules/fancyzones/lib/util.cpp

@@ -128,6 +128,13 @@ void SizeWindowToRect(HWND window, RECT rect) noexcept
         placement.showCmd = SW_RESTORE | SW_SHOWNA;
     }
 
+    // Remove maximized show command to make sure window is moved to the correct zone.
+    if (placement.showCmd & SW_SHOWMAXIMIZED)
+    {
+        placement.showCmd = SW_RESTORE;
+        placement.flags &= ~WPF_RESTORETOMAXIMIZED;
+    }
+
     placement.rcNormalPosition = rect;
     placement.flags |= WPF_ASYNCWINDOWPLACEMENT;