From f3d672d53dbec3d84254d56057594b5d6eff1e1c Mon Sep 17 00:00:00 2001
From: thankyouverycool <66646555+thankyouverycool@users.noreply.github.com>
Date: Mon, 28 Feb 2022 11:12:21 -0500
Subject: [PATCH] LibGUI: Support hierarchical matches in FilterProxyModel

Fixes crash when searching in Help.
Patch by @eggpi
---
 Userland/Libraries/LibGUI/FilteringProxyModel.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Userland/Libraries/LibGUI/FilteringProxyModel.cpp b/Userland/Libraries/LibGUI/FilteringProxyModel.cpp
index 9143910c0f..51102ff0aa 100644
--- a/Userland/Libraries/LibGUI/FilteringProxyModel.cpp
+++ b/Userland/Libraries/LibGUI/FilteringProxyModel.cpp
@@ -41,8 +41,8 @@ Variant FilteringProxyModel::data(ModelIndex const& index, ModelRole role) const
     if ((size_t)index.row() > m_matching_indices.size() || index.row() < 0)
         return {};
 
-    // FIXME: Support hierarchical models (with a non-empty index.parent()).
-    auto underlying_index = m_model->index(m_matching_indices[index.row()].row(), index.column(), {});
+    auto matching_index = m_matching_indices[index.row()];
+    auto underlying_index = m_model->index(matching_index.row(), index.column(), matching_index.parent());
     return underlying_index.data(role);
 }