X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/de8ea90ca78ccfb26dd501dc3bc089fb24ad9094..9e8e58147:/src/kitemviews/kfileitemmodelrolesupdater.cpp

diff --git a/src/kitemviews/kfileitemmodelrolesupdater.cpp b/src/kitemviews/kfileitemmodelrolesupdater.cpp
index 42788d2fe..a603a94da 100644
--- a/src/kitemviews/kfileitemmodelrolesupdater.cpp
+++ b/src/kitemviews/kfileitemmodelrolesupdater.cpp
@@ -782,7 +782,11 @@ void KFileItemModelRolesUpdater::slotDirectoryContentsCountReceived(const QStrin
                 data.insert("isExpandable", count > 0);
             }
 
+            disconnect(m_model, &KFileItemModel::itemsChanged,
+                       this,    &KFileItemModelRolesUpdater::slotItemsChanged);
             m_model->setData(index, data);
+            connect(m_model, &KFileItemModel::itemsChanged,
+                       this,    &KFileItemModelRolesUpdater::slotItemsChanged);
         }
     }
 }
@@ -954,16 +958,19 @@ void KFileItemModelRolesUpdater::updateChangedItems()
 
     QList<int> visibleChangedIndexes;
     QList<int> invisibleChangedIndexes;
+    visibleChangedIndexes.reserve(m_changedItems.size());
+    invisibleChangedIndexes.reserve(m_changedItems.size());
 
-    // Iterate over a const copy because items are deleted within the loop
-    const auto changedItems = m_changedItems;
-    for (const KFileItem &item : changedItems) {
+    auto changedItemsIt = m_changedItems.begin();
+    while (changedItemsIt != m_changedItems.end()) {
+        const auto& item = *changedItemsIt;
         const int index = m_model->index(item);
 
         if (index < 0) {
-            m_changedItems.remove(item);
+            changedItemsIt = m_changedItems.erase(changedItemsIt);
             continue;
         }
+        ++changedItemsIt;
 
         if (index >= m_firstVisibleIndex && index <= m_lastVisibleIndex) {
             visibleChangedIndexes.append(index);
@@ -1160,7 +1167,9 @@ QList<int> KFileItemModelRolesUpdater::indexesToResolve() const
     const int count = m_model->count();
 
     QList<int> result;
-    result.reserve(ResolveAllItemsLimit);
+    result.reserve(qMin(count, (m_lastVisibleIndex - m_firstVisibleIndex + 1) +
+                               ResolveAllItemsLimit +
+                               (2 * m_maximumVisibleItems)));
 
     // Add visible items.
     for (int i = m_firstVisibleIndex; i <= m_lastVisibleIndex; ++i) {
@@ -1185,14 +1194,14 @@ QList<int> KFileItemModelRolesUpdater::indexesToResolve() const
     }
 
     // Add items on the last page.
-    const int beginLastPage = qMax(qMin(endExtendedVisibleRange + 1, count - 1), count - m_maximumVisibleItems);
+    const int beginLastPage = qMax(endExtendedVisibleRange + 1, count - m_maximumVisibleItems);
     for (int i = beginLastPage; i < count; ++i) {
         result.append(i);
     }
 
     // Add items on the first page.
-    const int endFirstPage = qMin(qMax(beginExtendedVisibleRange - 1, 0), m_maximumVisibleItems);
-    for (int i = 0; i <= endFirstPage; ++i) {
+    const int endFirstPage = qMin(beginExtendedVisibleRange, m_maximumVisibleItems);
+    for (int i = 0; i < endFirstPage; ++i) {
         result.append(i);
     }
 
@@ -1204,7 +1213,7 @@ QList<int> KFileItemModelRolesUpdater::indexesToResolve() const
         --remainingItems;
     }
 
-    for (int i = beginExtendedVisibleRange - 1; i > endFirstPage && remainingItems > 0; --i) {
+    for (int i = beginExtendedVisibleRange - 1; i >= endFirstPage && remainingItems > 0; --i) {
         result.append(i);
         --remainingItems;
     }