4 files changed, 49 insertions, 2 deletions
diff --git a/src/kitemviews/kfileitemlistview.cpp b/src/kitemviews/kfileitemlistview.cpp
index 80d85aa2e..4fffbcbfd 100644
--- a/src/kitemviews/kfileitemlistview.cpp
+++ b/src/kitemviews/kfileitemlistview.cpp
@@ -116,6 +116,18 @@ QStringList KFileItemListView::enabledPlugins() const
     return m_modelRolesUpdater ? m_modelRolesUpdater->enabledPlugins() : QStringList();
 }
 
+void KFileItemListView::setLocalFileSizePreviewLimit(const qlonglong size)
+{
+    if (m_modelRolesUpdater) {
+        m_modelRolesUpdater->setLocalFileSizePreviewLimit(size);
+    }
+}
+
+qlonglong KFileItemListView::localFileSizePreviewLimit() const
+{
+    return m_modelRolesUpdater ? m_modelRolesUpdater->localFileSizePreviewLimit() : 0;
+}
+
 QPixmap KFileItemListView::createDragPixmap(const KItemSet& indexes) const
 {
     if (!model()) {
diff --git a/src/kitemviews/kfileitemlistview.h b/src/kitemviews/kfileitemlistview.h
index c13ea5ef2..92005c2df 100644
--- a/src/kitemviews/kfileitemlistview.h
+++ b/src/kitemviews/kfileitemlistview.h
@@ -71,6 +71,17 @@ public:
      */
     QStringList enabledPlugins() const;
 
+    /**
+     * Sets the maximum file size of local files for which
+     * previews will be generated (if enabled). A value of 0
+     * indicates no file size limit.
+     * Per default the value from KConfigGroup "PreviewSettings"
+     * MaximumSize is used, 0 otherwise.
+     * @param size
+     */
+    void setLocalFileSizePreviewLimit(qlonglong size);
+    qlonglong localFileSizePreviewLimit() const;
+
     QPixmap createDragPixmap(const KItemSet& indexes) const override;
 
 protected:
diff --git a/src/kitemviews/kfileitemmodelrolesupdater.cpp b/src/kitemviews/kfileitemmodelrolesupdater.cpp
index c28e240a5..eb2c1b646 100644
--- a/src/kitemviews/kfileitemmodelrolesupdater.cpp
+++ b/src/kitemviews/kfileitemmodelrolesupdater.cpp
@@ -85,7 +85,8 @@ KFileItemModelRolesUpdater::KFileItemModelRolesUpdater(KFileItemModel* model, QO
     m_recentlyChangedItemsTimer(nullptr),
     m_recentlyChangedItems(),
     m_changedItems(),
-    m_directoryContentsCounter(nullptr)
+    m_directoryContentsCounter(nullptr),
+    m_localFileSizePreviewLimit(0)
   #ifdef HAVE_BALOO
   , m_balooFileMonitor(nullptr)
   #endif
@@ -94,6 +95,7 @@ KFileItemModelRolesUpdater::KFileItemModelRolesUpdater(KFileItemModel* model, QO
 
     const KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
     m_enabledPlugins = globalConfig.readEntry("Plugins", KIO::PreviewJob::defaultPlugins());
+    m_localFileSizePreviewLimit = static_cast<qulonglong>(globalConfig.readEntry("MaximumSize", 0));
 
     connect(m_model, &KFileItemModel::itemsInserted,
             this,    &KFileItemModelRolesUpdater::slotItemsInserted);
@@ -317,6 +319,16 @@ QStringList KFileItemModelRolesUpdater::enabledPlugins() const
     return m_enabledPlugins;
 }
 
+void KFileItemModelRolesUpdater::setLocalFileSizePreviewLimit(const qlonglong size)
+{
+    m_localFileSizePreviewLimit = size;
+}
+
+qlonglong KFileItemModelRolesUpdater::localFileSizePreviewLimit() const
+{
+    return m_localFileSizePreviewLimit;
+}
+
 void KFileItemModelRolesUpdater::slotItemsInserted(const KItemRangeList& itemRanges)
 {
     QElapsedTimer timer;
@@ -898,7 +910,7 @@ void KFileItemModelRolesUpdater::startPreviewJob()
 
     KIO::PreviewJob* job = new KIO::PreviewJob(itemSubSet, cacheSize, &m_enabledPlugins);
 
-    job->setIgnoreMaximumSize(itemSubSet.first().isLocalFile());
+    job->setIgnoreMaximumSize(itemSubSet.first().isLocalFile() && m_localFileSizePreviewLimit <= 0);
     if (job->uiDelegate()) {
         KJobWidgets::setWindow(job, qApp->activeWindow());
     }
diff --git a/src/kitemviews/kfileitemmodelrolesupdater.h b/src/kitemviews/kfileitemmodelrolesupdater.h
index e21cd30df..b881b73e4 100644
--- a/src/kitemviews/kfileitemmodelrolesupdater.h
+++ b/src/kitemviews/kfileitemmodelrolesupdater.h
@@ -154,6 +154,17 @@ public:
      */
     QStringList enabledPlugins() const;
 
+    /**
+     * Sets the maximum file size of local files for which
+     * previews will be generated (if enabled). A value of 0
+     * indicates no file size limit.
+     * Per default the value from KConfigGroup "PreviewSettings"
+     * MaximumSize is used, 0 otherwise.
+     * @param size
+     */
+    void setLocalFileSizePreviewLimit(qlonglong size);
+    qlonglong localFileSizePreviewLimit() const;
+
 private slots:
     void slotItemsInserted(const KItemRangeList& itemRanges);
     void slotItemsRemoved(const KItemRangeList& itemRanges);
@@ -313,6 +324,7 @@ private:
     QSet<QByteArray> m_roles;
     QSet<QByteArray> m_resolvableRoles;
     QStringList m_enabledPlugins;
+    qulonglong m_localFileSizePreviewLimit;
 
     // Items for which the sort role still has to be determined.
     QSet<KFileItem> m_pendingSortRoleItems;