From 9fcef41d6653a2541a06275d0843bb61aaf5ea1b Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Tue, 28 Jun 2022 15:30:46 +0200
Subject: mutliple fixes to subsurface handling

---
 src/helpers/SubsurfaceTree.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/helpers/SubsurfaceTree.cpp')

diff --git a/src/helpers/SubsurfaceTree.cpp b/src/helpers/SubsurfaceTree.cpp
index bcff2986..c511b900 100644
--- a/src/helpers/SubsurfaceTree.cpp
+++ b/src/helpers/SubsurfaceTree.cpp
@@ -193,12 +193,22 @@ void Events::listener_commitSubsurface(void* owner, void* data) {
             Debug::log(LOG, "Refusing to commit damage from %x because it's invisible.", pNode->pWindowOwner);
         return;
     }
-        
 
     int lx = 0, ly = 0;
 
     addSurfaceGlobalOffset(pNode, &lx, &ly);
 
+    // I do not think this is correct, but it solves a lot of issues with some apps (e.g. firefox)
+    // What this does is that basically, if the pNode is a child of some other node, on commit,
+    // it will also damage (check & damage if needed) all its siblings.
+    if (pNode->pParent) for (auto& cs : pNode->pParent->childSubsurfaces) {
+        const auto NODECOORDS = pNode->pSubsurface ? Vector2D(pNode->pSubsurface->pSubsurface->current.x, pNode->pSubsurface->pSubsurface->current.y) : Vector2D();
+
+        if (&cs != pNode->pSubsurface && cs.pSubsurface) {
+            g_pHyprRenderer->damageSurface(cs.pSubsurface->surface, lx - NODECOORDS.x + cs.pSubsurface->current.x, ly - NODECOORDS.y + cs.pSubsurface->current.y);
+        }
+    }
+
     g_pHyprRenderer->damageSurface(pNode->pSurface, lx, ly);
 }
 
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