xdg-shell: update reported size on ack_configure

src/Window.hpp

@@ -185,6 +185,7 @@ class CWindow {
     DYNLISTENER(setOverrideRedirect);
     DYNLISTENER(associateX11);
     DYNLISTENER(dissociateX11);
+    DYNLISTENER(ackConfigure);
     // DYNLISTENER(newSubsurfaceWindow);
 
     CWLSurface            m_pWLSurface;
@@ -204,9 +205,11 @@ class CWindow {
     CAnimatedVariable m_vRealSize;
 
     // for not spamming the protocols
-    Vector2D m_vReportedPosition;
+    Vector2D                m_vReportedPosition;
-    Vector2D m_vReportedSize;
+    Vector2D                m_vReportedSize;
-    Vector2D m_vPendingReportedSize;
+    Vector2D                m_vPendingReportedSize;
+    bool                    m_bPendingSizeAcked = false;
+    std::optional<uint32_t> m_iPendingSizeAck;
 
     // for restoring floating statuses
     Vector2D m_vLastFloatingSize;

src/events/Events.hpp

@@ -62,6 +62,7 @@ namespace Events {
     DYNLISTENFUNC(setOverrideRedirect);
     DYNLISTENFUNC(associateX11);
     DYNLISTENFUNC(dissociateX11);
+    DYNLISTENFUNC(ackConfigure);
 
     // Window subsurfaces
     // LISTENER(newSubsurfaceWindow);

src/events/Windows.cpp

@@ -504,6 +504,7 @@ void Events::listener_mapWindow(void* owner, void* data) {
         PWINDOW->hyprListener_requestResize.initCallback(&PWINDOW->m_uSurface.xdg->toplevel->events.request_resize, &Events::listener_requestResize, PWINDOW, "XDG Window Late");
         PWINDOW->hyprListener_fullscreenWindow.initCallback(&PWINDOW->m_uSurface.xdg->toplevel->events.request_fullscreen, &Events::listener_fullscreenWindow, PWINDOW,
                                                             "XDG Window Late");
+        PWINDOW->hyprListener_ackConfigure.initCallback(&PWINDOW->m_uSurface.xdg->events.ack_configure, &Events::listener_ackConfigure, PWINDOW, "XDG Window Late");
     } else {
         PWINDOW->hyprListener_fullscreenWindow.initCallback(&PWINDOW->m_uSurface.xwayland->events.request_fullscreen, &Events::listener_fullscreenWindow, PWINDOW,
                                                             "XWayland Window Late");
@@ -682,6 +683,7 @@ void Events::listener_unmapWindow(void* owner, void* data) {
         PWINDOW->hyprListener_requestMove.removeCallback();
         PWINDOW->hyprListener_requestResize.removeCallback();
         PWINDOW->hyprListener_fullscreenWindow.removeCallback();
+        PWINDOW->hyprListener_ackConfigure.removeCallback();
     } else {
         Debug::log(LOG, "Unregistered late callbacks XWL");
         PWINDOW->hyprListener_fullscreenWindow.removeCallback();
@@ -788,13 +790,26 @@ void Events::listener_unmapWindow(void* owner, void* data) {
     PWINDOW->onUnmap();
 }
 
+void Events::listener_ackConfigure(void* owner, void* data) {
+    CWindow*   PWINDOW = (CWindow*)owner;
+    const auto E       = (wlr_xdg_surface_configure*)data;
+
+    if (!PWINDOW->m_iPendingSizeAck.has_value() || E->serial != PWINDOW->m_iPendingSizeAck)
+        return;
+
+    PWINDOW->m_bPendingSizeAcked = true;
+    PWINDOW->m_iPendingSizeAck.reset();
+}
+
 void Events::listener_commitWindow(void* owner, void* data) {
     CWindow* PWINDOW = (CWindow*)owner;
 
     if (!PWINDOW->m_bMappedX11 || PWINDOW->isHidden() || (PWINDOW->m_bIsX11 && !PWINDOW->m_bMappedX11))
         return;
 
-    PWINDOW->m_vReportedSize = PWINDOW->m_vPendingReportedSize; // apply pending size. We pinged, the window ponged.
+    if (PWINDOW->m_bIsX11 || PWINDOW->m_bPendingSizeAcked)
+        PWINDOW->m_vReportedSize = PWINDOW->m_vPendingReportedSize; // apply pending size. We pinged, the window ponged.
+    PWINDOW->m_bPendingSizeAcked = false;
 
     PWINDOW->updateSurfaceOutputs();
 

src/helpers/SubsurfaceTree.cpp

@@ -248,14 +248,13 @@ void Events::listener_commitSubsurface(void* owner, void* data) {
         g_pHyprRenderer->damageSurface(pNode->pSurface->wlr(), lx, ly, SCALE);
 
     if (pNode->pWindowOwner) {
-        // update reported size. Some windows do not send a ::commit afterwards. Odd.
+        if (pNode->pWindowOwner->m_bIsX11)
-        pNode->pWindowOwner->m_vReportedSize = pNode->pWindowOwner->m_vPendingReportedSize;
+            pNode->pWindowOwner->m_vReportedSize = pNode->pWindowOwner->m_vPendingReportedSize; // apply pending size. We pinged, the window ponged.
 
         // tearing: if solitary, redraw it. This still might be a single surface window
         const auto PMONITOR = g_pCompositor->getMonitorFromID(pNode->pWindowOwner->m_iMonitorID);
         if (PMONITOR->solitaryClient == pNode->pWindowOwner && pNode->pWindowOwner->canBeTorn() && PMONITOR->tearingState.canTear &&
             pNode->pSurface->wlr()->current.committed & WLR_SURFACE_STATE_BUFFER) {
-
             CRegion damageBox;
             wlr_surface_get_effective_damage(pNode->pSurface->wlr(), damageBox.pixman());
 

src/layout/IHyprLayout.cpp

@@ -162,8 +162,10 @@ void IHyprLayout::onWindowCreatedFloating(CWindow* pWindow) {
         g_pXWaylandManager->setWindowSize(pWindow, pWindow->m_vRealSize.goalv());
 
         g_pCompositor->changeWindowZOrder(pWindow, true);
-    } else
+    } else {
         pWindow->m_vPendingReportedSize = pWindow->m_vRealSize.goalv();
+        pWindow->m_vReportedSize        = pWindow->m_vPendingReportedSize;
+    }
 }
 
 void IHyprLayout::onBeginDragWindow() {

src/managers/XWaylandManager.cpp

@@ -180,7 +180,7 @@ void CHyprXWaylandManager::setWindowSize(CWindow* pWindow, Vector2D size, bool f
     if (pWindow->m_bIsX11)
         wlr_xwayland_surface_configure(pWindow->m_uSurface.xwayland, windowPos.x, windowPos.y, size.x, size.y);
     else
-        wlr_xdg_toplevel_set_size(pWindow->m_uSurface.xdg->toplevel, size.x, size.y);
+        pWindow->m_iPendingSizeAck = wlr_xdg_toplevel_set_size(pWindow->m_uSurface.xdg->toplevel, size.x, size.y);
 }
 
 void CHyprXWaylandManager::setWindowStyleTiled(CWindow* pWindow, uint32_t edgez) {