From 19b2fcddc0013e3fc628acfc1997edc7337aa525 Mon Sep 17 00:00:00 2001
From: Milian Wolff <milian.wolff@kdab.com>
Date: Mon, 4 Dec 2023 15:11:55 +0100
Subject: [PATCH] Unbreak recursive filtering in ObjectIdsFilterProxyModel and
 more

The code tried to be compatible with older Qt and newer but failed
to do so correctly. When a model only implemented `acceptRow` then
that was never called by newer Qt.

Instead, enforce all models to override `acceptRow` and prevent them
from overriding `filterAcceptsRow` - instead add the dance there to
make the code compatible to the old KRecursiveFilterProxyModel.

This unbreaks the "ctrl+shift+click" picker dialog to not show all
objects but really only those that are visible at the given position.

(cherry picked from commit 4e5205c228769ddb6b5a0fc84280aa05783b70f8)
---
 common/recursiveproxymodelbase.cpp                 |  9 +++++++++
 common/recursiveproxymodelbase.h                   | 14 ++++++--------
 core/tools/resourcebrowser/resourcefiltermodel.cpp |  4 ++--
 core/tools/resourcebrowser/resourcefiltermodel.h   |  2 +-
 4 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/common/recursiveproxymodelbase.cpp b/common/recursiveproxymodelbase.cpp
index 0ce52a168..c29cb30eb 100644
--- a/common/recursiveproxymodelbase.cpp
+++ b/common/recursiveproxymodelbase.cpp
@@ -12,7 +12,16 @@
 */
 #include "recursiveproxymodelbase.h"
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
 bool RecursiveProxyModelBase::acceptRow(int sourceRow, const QModelIndex &sourceParent) const
 {
+    // delegate to base class
     return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
 }
+#endif
+
+bool RecursiveProxyModelBase::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+    // delegate to acceptRow
+    return acceptRow(sourceRow, sourceParent);
+}
diff --git a/common/recursiveproxymodelbase.h b/common/recursiveproxymodelbase.h
index 82cc66dd7..cb716f081 100644
--- a/common/recursiveproxymodelbase.h
+++ b/common/recursiveproxymodelbase.h
@@ -22,7 +22,7 @@
  * NOTE: This class can be removed once we raise our minimum Qt version to 5.10 or above
  */
 
-#if QT_VERSION < QT_VERSION_CHECK(6, 6, 0)
+#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
 #include <kde/krecursivefilterproxymodel.h>
 #define GAMMARAY_PROXY_BASE_CLASS KRecursiveFilterProxyModel
 #else
@@ -30,12 +30,7 @@
 #define GAMMARAY_PROXY_BASE_CLASS QSortFilterProxyModel
 #endif
 
-class GAMMARAY_COMMON_EXPORT RecursiveProxyModelBase : public
-#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-                                                       KRecursiveFilterProxyModel
-#else
-                                                       QSortFilterProxyModel
-#endif
+class GAMMARAY_COMMON_EXPORT RecursiveProxyModelBase : public GAMMARAY_PROXY_BASE_CLASS
 {
 public:
 #if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
@@ -46,8 +41,11 @@ public:
     {
         setRecursiveFilteringEnabled(true);
     }
-#endif
 
     virtual bool acceptRow(int sourceRow, const QModelIndex &sourceParent) const;
+#endif
+
+    // compat: always override acceptRow in subclasses
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const final;
 };
 #endif
diff --git a/core/tools/resourcebrowser/resourcefiltermodel.cpp b/core/tools/resourcebrowser/resourcefiltermodel.cpp
index 7e1ad8e55..cad4a5394 100644
--- a/core/tools/resourcebrowser/resourcefiltermodel.cpp
+++ b/core/tools/resourcebrowser/resourcefiltermodel.cpp
@@ -24,11 +24,11 @@ ResourceFilterModel::ResourceFilterModel(QObject *parent)
 {
 }
 
-bool ResourceFilterModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
+bool ResourceFilterModel::acceptRow(int source_row, const QModelIndex &source_parent) const
 {
     const QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
     const QString path = index.data(ResourceModel::FilePathRole).toString();
     if (path == QLatin1String(":/gammaray") || path.startsWith(QLatin1String(":/gammaray/")))
         return false;
-    return RecursiveProxyModelBase::filterAcceptsRow(source_row, source_parent);
+    return RecursiveProxyModelBase::acceptRow(source_row, source_parent);
 }
diff --git a/core/tools/resourcebrowser/resourcefiltermodel.h b/core/tools/resourcebrowser/resourcefiltermodel.h
index 2e9d8c430..5bdbeedf0 100644
--- a/core/tools/resourcebrowser/resourcefiltermodel.h
+++ b/core/tools/resourcebrowser/resourcefiltermodel.h
@@ -22,7 +22,7 @@ class ResourceFilterModel : public RecursiveProxyModelBase
     Q_OBJECT
 public:
     explicit ResourceFilterModel(QObject *parent = nullptr);
-    bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
+    bool acceptRow(int source_row, const QModelIndex &source_parent) const override;
 };
 }
 
-- 
2.44.0