Make it possible to export custom effect xmls

The is possible through the context menu of a custom effect in the effect
list

src/assets/assetlist/model/assettreemodel.cpp

@@ -41,6 +41,18 @@ QString AssetTreeModel::getName(const QModelIndex &index) const
     return item->dataColumn(AssetTreeModel::nameCol).toString();
 }
 
+QString AssetTreeModel::getAssetId(const QModelIndex &index) const
+{
+    if (!index.isValid()) {
+        return QString();
+    }
+    std::shared_ptr<TreeItem> item = getItemById(int(index.internalId()));
+    if (item->depth() == 1) {
+        return QString();
+    }
+    return item->dataColumn(AssetTreeModel::idCol).toString();
+}
+
 bool AssetTreeModel::isFavorite(const QModelIndex &index) const
 {
     if (!index.isValid()) {

src/assets/assetlist/model/assettreemodel.hpp

@@ -22,11 +22,13 @@ public:
 
     enum { IdRole = Qt::UserRole + 1, NameRole, FavoriteRole, TypeRole };
 
-    // Helper function to retrieve name
+    /** @brief Helper function to retrieve name */
     QString getName(const QModelIndex &index) const;
-    // Helper function to retrieve description
+    /** @brief Helper function to retrieve asset id */
+    QString getAssetId(const QModelIndex &index) const;
+    /** @brief  Helper function to retrieve description */
     QString getDescription(bool isEffect, const QModelIndex &index) const;
-    // Helper function to retrieve if an effect is categorized as favorite
+    /** @brief Helper function to retrieve if an effect is categorized as favorite */
     bool isFavorite(const QModelIndex &index) const;
     QHash<int, QByteArray> roleNames() const override;
     QVariant data(const QModelIndex &index, int role) const override;

src/assets/assetlist/view/assetlistwidget.cpp

@@ -50,6 +50,11 @@ QString AssetListWidget::getName(const QModelIndex &index) const
     return m_model->getName(m_proxyModel->mapToSource(index));
 }
 
+QString AssetListWidget::getAssetId(const QModelIndex &index) const
+{
+    return m_model->getName(m_proxyModel->mapToSource(index));
+}
+
 bool AssetListWidget::isFavorite(const QModelIndex &index) const
 {
     return m_model->isFavorite(m_proxyModel->mapToSource(index));

src/assets/assetlist/view/assetlistwidget.hpp

@@ -31,6 +31,9 @@ public:
     /** @brief Returns the name of the asset given its model index */
     QString getName(const QModelIndex &index) const;
 
+    /** @brief Returns the asset id of the asset given its model index */
+    QString getAssetId(const QModelIndex &index) const;
+
     /** @brief Returns true if this effect belongs to favorites */
     bool isFavorite(const QModelIndex &index) const;
 

src/assets/assetlist/view/qml/assetList.qml

@@ -341,6 +341,14 @@ Rectangle {
                         assetlist.editCustomEffectInfo(sel.currentIndex)
                     }
                 }
+                MenuItem {
+                    id: exportMenu
+                    text: i18n("Export XML…")
+                    visible: isEffectList && assetContextMenu.isCustom
+                    onTriggered: {
+                        assetlist.exportCustomEffect(sel.currentIndex)
+                    }
+                }
             }
 
             TableViewColumn { role: "identifier"; title: i18n("Name"); }

src/effects/effectlist/view/effectlistwidget.cpp

@@ -18,6 +18,10 @@
 #include <QDialogButtonBox>
 #include <QLineEdit>
 #include <QTextEdit>
+#include <QFileDialog>
+#include <KIO/FileCopyJob>
+#include <KRecentDirs>
+#include <KMessageBox>
 
 EffectListWidget::EffectListWidget(QWidget *parent)
     : AssetListWidget(parent)
@@ -123,3 +127,25 @@ void EffectListWidget::editCustomAsset(const QModelIndex &index)
         m_model->editCustomAsset(name, enteredDescription, m_proxyModel->mapToSource(index));
     }
 }
+
+void EffectListWidget::exportCustomEffect(const QModelIndex &index) {
+    QString id = getAssetId(index);
+    if (id.isEmpty()) {
+        return;
+    }
+
+    QString filter = QString("%1 (*.xml);;%2 (*)").arg(i18n("Kdenlive Effect definitions"), i18n("All Files"));
+    QFileDialog dialog(this, i18n("Export Custom Effect"));
+    QString startFolder = KRecentDirs::dir(QStringLiteral(":KdenliveExportCustomEffect"));
+    QUrl source = QUrl::fromLocalFile(EffectsRepository::get()->getCustomPath(id));
+    startFolder.append(source.fileName());
+    QString filename = QFileDialog::getSaveFileName(this, i18n("Export Custom Effect"), startFolder, filter);
+    QUrl target = QUrl::fromLocalFile(filename);
+    if (source.isValid() && target.isValid()) {
+        KRecentDirs::add(QStringLiteral(":KdenliveExportCustomEffect"), target.adjusted(QUrl::RemoveFilename).toLocalFile());
+        KIO::FileCopyJob *copyjob = KIO::file_copy(source, target);
+        if (!copyjob->exec()) {
+            KMessageBox::sorry(this, i18n("Unable to write to file %1", target.toLocalFile()));
+        }
+    }
+}

src/effects/effectlist/view/effectlistwidget.hpp

@@ -33,6 +33,7 @@ public:
     void reloadEffectMenu(QMenu *effectsMenu, KActionCategory *effectActions);
     void reloadCustomEffectIx(const QModelIndex &index) override;
     void editCustomAsset(const QModelIndex &index) override;
+    void exportCustomEffect(const QModelIndex &index);
 public slots:
     void reloadCustomEffect(const QString &path);
 
@@ -66,6 +67,7 @@ public:
     Q_INVOKABLE void deleteCustomEffect(const QModelIndex &index) { q->deleteCustomEffect(index); }
     Q_INVOKABLE QString getDescription(const QModelIndex &index) const { return q->getDescription(true, index); }
     Q_INVOKABLE void editCustomEffectInfo(const QModelIndex &index){ q->editCustomAsset(index); }
+    Q_INVOKABLE void exportCustomEffect(const QModelIndex &index){ q->exportCustomEffect(index); }
     Q_INVOKABLE QVariantMap getMimeData(const QString &assetId) const { return q->getMimeData(assetId); }
 
     Q_INVOKABLE void activate(const QModelIndex &ix) { q->activate(ix); }