provide basic Export functionality

app/layouts/storage.cpp

@@ -578,6 +578,39 @@ ViewDelayedCreationData Storage::newView(const Layout::GenericLayout *destinatio
     return result;
 }
 
+bool Storage::exportTemplate(const QString &originFile, const QString &destinationFile,const Data::AppletsTable &approvedApplets)
+{
+    if (originFile.isEmpty() || !QFile(originFile).exists() || destinationFile.isEmpty()) {
+        return false;
+    }
+
+    if (QFile(destinationFile).exists()) {
+        QFile::remove(destinationFile);
+    }
+
+    QFile(originFile).copy(destinationFile);
+
+    KSharedConfigPtr destFilePtr = KSharedConfig::openConfig(destinationFile);
+    KConfigGroup containments = KConfigGroup(destFilePtr, "Containments");
+
+    for (const auto &cId : containments.groupList()) {
+        auto applets = containments.group(cId).group("Applets");
+        for (const auto &aId: applets.groupList()) {
+            QString pluginId = applets.group(aId).readEntry("plugin", "");
+
+            if (!approvedApplets.containsId(pluginId)) {
+                for (const auto &configId: applets.group(aId).groupList()) {
+                    applets.group(aId).group(configId).deleteGroup();
+                }
+            }
+        }
+    }
+
+    containments.sync();
+
+    return true;
+}
+
 ViewDelayedCreationData Storage::copyView(const Layout::GenericLayout *layout, Plasma::Containment *containment)
 {
     if (!containment || !layout->corona()) {

app/layouts/storage.h

@@ -85,6 +85,8 @@ public:
     ViewDelayedCreationData copyView(const Layout::GenericLayout *layout, Plasma::Containment *containment);
     ViewDelayedCreationData newView(const Layout::GenericLayout *destination, const QString &templateFile);
 
+    bool exportTemplate(const QString &originFile, const QString &destinationFile, const Data::AppletsTable &approvedApplets);
+
     /// STATIC
     //! Check if an applet config group is valid or belongs to removed applet
     static bool appletGroupIsValid(const KConfigGroup &appletGroup);

app/settings/exporttemplatedialog/appletsmodel.cpp

@@ -197,6 +197,18 @@ void Applets::setSelected(const Latte::Data::AppletsTable &applets)
     }
 }
 
+Latte::Data::AppletsTable Applets::selectedApplets()
+{
+    Data::AppletsTable selected;
+
+    for(int i=0; i<c_applets.rowCount(); ++i) {
+        if (c_applets[i].isSelected) {
+            selected << c_applets[i];
+        }
+    }
+    return selected;
+}
+
 Qt::ItemFlags Applets::flags(const QModelIndex &index) const
 {
     const int column = index.column();

app/settings/exporttemplatedialog/appletsmodel.h

@@ -73,6 +73,8 @@ public:
     void setData(const Latte::Data::AppletsTable &applets);
     void setSelected(const Latte::Data::AppletsTable &applets);
 
+    Latte::Data::AppletsTable selectedApplets();
+
     void deselectAll();
     void reset();
     void selectAll();

app/settings/exporttemplatedialog/exporttemplatedialog.cpp

@@ -86,14 +86,17 @@ void ExportTemplateDialog::initButtons()
 
 void ExportTemplateDialog::initExtractButton(const QString &tooltip)
 {
-    QPushButton *extractBtn = new QPushButton(this);
-    extractBtn->setText(i18nc("export template", "Export"));
-    extractBtn->setIcon(QIcon::fromTheme("document-export"));
-    extractBtn->setToolTip(tooltip);
+    m_exportButton = new QPushButton(this);
+    m_exportButton->setText(i18nc("export template", "Export"));
+    m_exportButton->setIcon(QIcon::fromTheme("document-export"));
+    m_exportButton->setToolTip(tooltip);
 
-    m_ui->buttonBox->addButton(extractBtn, QDialogButtonBox::AcceptRole);
+    m_ui->buttonBox->addButton(m_exportButton, QDialogButtonBox::AcceptRole);
+}
 
-    connect(extractBtn, &QPushButton::clicked, this, &ExportTemplateDialog::onCancel);
+QPushButton *ExportTemplateDialog::exportButton() const
+{
+    return m_exportButton;
 }
 
 void ExportTemplateDialog::onDataChanged()

app/settings/exporttemplatedialog/exporttemplatedialog.h

@@ -28,6 +28,7 @@
 // Qt
 #include <QDialog>
 #include <QObject>
+#include <QPushButton>
 #include <QWindow>
 
 namespace Ui {
@@ -63,6 +64,8 @@ public:
     Ui::ExportTemplateDialog *ui() const;
     Latte::Corona *corona() const;
 
+    QPushButton *exportButton() const;
+
 protected:
     void accept() override;
 
@@ -81,6 +84,8 @@ private:
     bool m_isExportingLayout{false};
     bool m_isExportingView{false};
 
+    QPushButton *m_exportButton{nullptr};
+
     Latte::Corona *m_corona{nullptr};
 
     Ui::ExportTemplateDialog *m_ui;

app/settings/exporttemplatedialog/exporttemplatehandler.cpp

@@ -102,6 +102,7 @@ void ExportTemplateHandler::init()
     connect(m_ui->buttonBox->button(QDialogButtonBox::Reset), &QPushButton::clicked, this, &ExportTemplateHandler::reset);
 
     connect(m_ui->chooseBtn, &QPushButton::clicked, this, &ExportTemplateHandler::chooseFileDialog);
+    connect(m_parentDialog->exportButton(), &QPushButton::clicked, this, &ExportTemplateHandler::onExport);
 
     //! Labels
     connect(this, &ExportTemplateHandler::filepathChanged, this, &ExportTemplateHandler::onFilepathChanged);
@@ -119,6 +120,7 @@ void ExportTemplateHandler::setFilepath(const QString &filepath)
 
 void ExportTemplateHandler::loadLayoutApplets(const QString &layoutName, const QString &layoutId)
 {
+    m_originLayoutFilePath = layoutId;
     Data::AppletsTable c_data = Latte::Layouts::Storage::self()->plugins(layoutId);
     m_appletsModel->setData(c_data);
     m_parentDialog->setWindowTitle(i18n("Export Layout Template"));
@@ -177,6 +179,13 @@ void ExportTemplateHandler::chooseFileDialog()
     chooseFileDlg->selectFile(currentFile.baseName());
 }
 
+void ExportTemplateHandler::onExport()
+{
+    if (!m_originLayoutFilePath.isEmpty()) {
+        bool result = Latte::Layouts::Storage::self()->exportTemplate(m_originLayoutFilePath, c_filepath, m_appletsModel->selectedApplets());
+    }
+}
+
 void ExportTemplateHandler::onFilepathChanged()
 {
     QString filepath = c_filepath;

app/settings/exporttemplatedialog/exporttemplatehandler.h

@@ -91,6 +91,7 @@ private:
     void setFilepath(const QString &filepath);
 
 private slots:
+    void onExport();
     void onFilepathChanged();
     void onSelectAll();
     void onDeselectAll();
@@ -101,6 +102,8 @@ private:
     QString c_filepath;
     QString o_filepath;
 
+    QString  m_originLayoutFilePath;
+
     Dialog::ExportTemplateDialog *m_parentDialog{nullptr};
     Ui::ExportTemplateDialog *m_ui{nullptr};