internal: release buttons on unmap

src/events/Layers.cpp

@@ -218,6 +218,8 @@ void Events::listener_unmapLayerSurface(void* owner, void* data) {
 
     // refocus if needed
     if (WASLASTFOCUS) {
+        g_pInputManager->releaseAllMouseButtons();
+
         Vector2D       surfaceCoords;
         SLayerSurface* pFoundLayerSurface = nullptr;
         wlr_surface*   foundSurface       = nullptr;

src/events/Popups.cpp

@@ -173,6 +173,9 @@ void Events::listener_unmapPopupXDG(void* owner, void* data) {
 
     ASSERT(PPOPUP);
 
+    if (PPOPUP->popup->base->surface == g_pCompositor->m_pLastFocus)
+        g_pInputManager->releaseAllMouseButtons();
+
     SubsurfaceTree::destroySurfaceTree(PPOPUP->pSurfaceTree);
 
     int lx = 0, ly = 0;

src/events/Windows.cpp

@@ -637,6 +637,8 @@ void Events::listener_unmapWindow(void* owner, void* data) {
         wasLastWindow                = true;
         g_pCompositor->m_pLastWindow = nullptr;
         g_pCompositor->m_pLastFocus  = nullptr;
+
+        g_pInputManager->releaseAllMouseButtons();
     }
 
     PWINDOW->m_bMappedX11 = false;

src/helpers/SubsurfaceTree.cpp

@@ -184,6 +184,9 @@ void Events::listener_unmapSubsurface(void* owner, void* data) {
 
     Debug::log(LOG, "Subsurface %x unmapped", subsurface);
 
+    if (subsurface->pSubsurface->surface == g_pCompositor->m_pLastFocus)
+        g_pInputManager->releaseAllMouseButtons();
+
     if (subsurface->pChild) {
         const auto PNODE = subsurface->pChild;