Summary: Fixes crash when hiding devices

Summary:
Fixes crash when hiding devices. The crash is caused by
KStandardItem::setDataValue which calls the
KStandardItemModel::onItemChanged function, and that function will
delete the KStandardItem if the data value being set is the hidden
attribute being set to true. To fix this KStandardItem now derives
QObject so that we can use deleteLater.

Test Plan:
Right click a device in the places panel and select hide
Right click the places panel and select show hidden
Right click the hidden device and select show
Right click the same device and select hide

BUG: 403064

Reviewers: #dolphin, elvisangelaccio

Reviewed By: #dolphin, elvisangelaccio

Subscribers: kfm-devel

Tags: #dolphin

Differential Revision: https://phabricator.kde.org/D21050

1 files changed, 3 insertions, 30 deletions

diff --git a/src/kitemviews/kstandarditem.cpp b/src/kitemviews/kstandarditem.cpp
index 4fb3f8f98..b3bbcaa41 100644
--- a/src/kitemviews/kstandarditem.cpp
+++ b/src/kitemviews/kstandarditem.cpp
@@ -21,16 +21,14 @@
 #include "kstandarditemmodel.h"
 
 KStandardItem::KStandardItem(KStandardItem* parent) :
-    m_parent(parent),
-    m_children(),
+    QObject(parent),
     m_model(nullptr),
     m_data()
 {
 }
 
 KStandardItem::KStandardItem(const QString& text, KStandardItem* parent) :
-    m_parent(parent),
-    m_children(),
+    QObject(parent),
     m_model(nullptr),
     m_data()
 {
@@ -38,8 +36,7 @@ KStandardItem::KStandardItem(const QString& text, KStandardItem* parent) :
 }
 
 KStandardItem::KStandardItem(const QString& icon, const QString& text, KStandardItem* parent) :
-    m_parent(parent),
-    m_children(),
+    QObject(parent),
     m_model(nullptr),
     m_data()
 {
@@ -47,14 +44,6 @@ KStandardItem::KStandardItem(const QString& icon, const QString& text, KStandard
     setText(text);
 }
 
-KStandardItem::KStandardItem(const KStandardItem& item) :
-    m_parent(item.m_parent),
-    m_children(item.m_children),
-    m_model(item.m_model),
-    m_data(item.m_data)
-{
-}
-
 KStandardItem::~KStandardItem()
 {
 }
@@ -123,17 +112,6 @@ QVariant KStandardItem::dataValue(const QByteArray& role) const
     return m_data[role];
 }
 
-void KStandardItem::setParent(KStandardItem* parent)
-{
-    // TODO: not implemented yet
-    m_parent = parent;
-}
-
-KStandardItem* KStandardItem::parent() const
-{
-    return m_parent;
-}
-
 void KStandardItem::setData(const QHash<QByteArray, QVariant>& values)
 {
     const QHash<QByteArray, QVariant> previous = m_data;
@@ -146,11 +124,6 @@ QHash<QByteArray, QVariant> KStandardItem::data() const
     return m_data;
 }
 
-QList<KStandardItem*> KStandardItem::children() const
-{
-    return m_children;
-}
-
 void KStandardItem::onDataValueChanged(const QByteArray& role,
                                        const QVariant& current,
                                        const QVariant& previous)