handle maps with multiple or single entries from Baloo

Summary:
Handle maps which may contain multiple entries with the same key.
Bumps frameworks to 5.58. Equivalent to D20739.

Reviewers: #dolphin, elvisangelaccio, bruns

Reviewed By: #dolphin, elvisangelaccio, bruns

Subscribers: kfm-devel

Tags: #dolphin

Differential Revision: https://phabricator.kde.org/D21157

2 files changed, 24 insertions, 8 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 78a89a558..7816b5717 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set (KDE_APPLICATIONS_VERSION "${KDE_APPLICATIONS_VERSION_MAJOR}.${KDE_APPLICATI
 project(Dolphin VERSION ${KDE_APPLICATIONS_VERSION})
 
 set(QT_MIN_VERSION "5.8.0")
-set(KF5_MIN_VERSION "5.56.0")
+set(KF5_MIN_VERSION "5.58.0")
 
 # ECM setup
 find_package(ECM ${KF5_MIN_VERSION} CONFIG REQUIRED)
diff --git a/src/kitemviews/private/kbaloorolesprovider.cpp b/src/kitemviews/private/kbaloorolesprovider.cpp
index 469f07915..f3671540d 100644
--- a/src/kitemviews/private/kbaloorolesprovider.cpp
+++ b/src/kitemviews/private/kbaloorolesprovider.cpp
@@ -56,18 +56,34 @@ QHash<QByteArray, QVariant> KBalooRolesProvider::roleValues(const Baloo::File& f
 {
     QHash<QByteArray, QVariant> values;
 
-    QMapIterator<KFileMetaData::Property::Property, QVariant> it(file.properties());
-    while (it.hasNext()) {
-        it.next();
+    using entry = std::pair<const KFileMetaData::Property::Property&, const QVariant&>;
+
+    const auto& propMap = file.properties();
+    auto rangeBegin = propMap.constKeyValueBegin();
+
+    while (rangeBegin != propMap.constKeyValueEnd()) {
+        auto key = (*rangeBegin).first;
+        const KFileMetaData::PropertyInfo propertyInfo(key);
+        const QByteArray role = roleForProperty(propertyInfo.name());
+
+        auto rangeEnd = std::find_if(rangeBegin, propMap.constKeyValueEnd(),
+            [key](const entry& e) { return e.first != key; });
 
-        const KFileMetaData::PropertyInfo pi(it.key());
-        const QString property = pi.name();
-        const QByteArray role = roleForProperty(property);
         if (role.isEmpty() || !roles.contains(role)) {
+            rangeBegin = rangeEnd;
             continue;
         }
 
-        values.insert(role, pi.formatAsDisplayString(it.value()));
+        auto distance = std::distance(rangeBegin, rangeEnd);
+        if (distance > 1) {
+            QVariantList list;
+            list.reserve(static_cast<int>(distance));
+            std::for_each(rangeBegin, rangeEnd, [&list](const entry& s) { list.append(s.second); });
+            values.insert(role, propertyInfo.formatAsDisplayString(list));
+        } else {
+            values.insert(role, propertyInfo.formatAsDisplayString((*rangeBegin).second));
+        }
+        rangeBegin = rangeEnd;
     }
 
     KFileMetaData::UserMetaData md(file.path());