[needs-docs] Add rename layout action to layout designer dialog

Fixes #10435

src/app/layout/qgslayoutdesignerdialog.cpp

@@ -316,6 +316,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   connect( mActionSaveAsTemplate, &QAction::triggered, this, &QgsLayoutDesignerDialog::saveAsTemplate );
   connect( mActionLoadFromTemplate, &QAction::triggered, this, &QgsLayoutDesignerDialog::addItemsFromTemplate );
   connect( mActionDuplicateLayout, &QAction::triggered, this, &QgsLayoutDesignerDialog::duplicate );
+  connect( mActionRenameLayout, &QAction::triggered, this, &QgsLayoutDesignerDialog::renameLayout );
 
   connect( mActionZoomIn, &QAction::triggered, mView, &QgsLayoutView::zoomIn );
   connect( mActionZoomOut, &QAction::triggered, mView, &QgsLayoutView::zoomOut );
@@ -1380,6 +1381,17 @@ void QgsLayoutDesignerDialog::showManager()
   } );
 }
 
+void QgsLayoutDesignerDialog::renameLayout()
+{
+  QString currentTitle = currentLayout()->name();
+  QString newTitle;
+  if ( !QgisApp::instance()->uniqueLayoutTitle( this, newTitle, false, currentTitle ) )
+  {
+    return;
+  }
+  currentLayout()->setName( newTitle );
+}
+
 void QgsLayoutDesignerDialog::paste()
 {
   QPointF pt = mView->mapFromGlobal( QCursor::pos() );

src/app/layout/qgslayoutdesignerdialog.h

@@ -272,6 +272,7 @@ class QgsLayoutDesignerDialog: public QMainWindow, private Ui::QgsLayoutDesigner
     void saveProject();
     void newLayout();
     void showManager();
+    void renameLayout();
 
   private:
 

src/app/qgisapp.cpp

@@ -7351,14 +7351,13 @@ bool QgisApp::uniqueLayoutTitle( QWidget *parent, QString &title, bool acceptEmp
   }
   QString titleMsg = chooseMsg;
 
-  QStringList cNames;
-  cNames << newTitle;
-#if 0 //TODO
-  Q_FOREACH ( QgsComposition *c, QgsProject::instance()->layoutManager()->compositions() )
+  QStringList layoutNames;
+  layoutNames << newTitle;
+  const QList< QgsLayout * > layouts = QgsProject::instance()->layoutManager()->layouts();
+  for ( QgsLayout *l : layouts )
   {
-    cNames << c->name();
+    layoutNames << l->name();
   }
-#endif
   while ( !titleValid )
   {
     newTitle = QInputDialog::getText( parent,
@@ -7384,9 +7383,9 @@ bool QgisApp::uniqueLayoutTitle( QWidget *parent, QString &title, bool acceptEmp
         newTitle = QgsProject::instance()->layoutManager()->generateUniqueTitle();
       }
     }
-    else if ( cNames.indexOf( newTitle, 1 ) >= 0 )
+    else if ( layoutNames.indexOf( newTitle, 1 ) >= 0 )
     {
-      cNames[0] = QString(); // clear non-unique name
+      layoutNames[0] = QString(); // clear non-unique name
       titleMsg = chooseMsg + "\n\n" + tr( "Title already exists!" );
     }
     else

src/ui/layout/qgslayoutdesignerbase.ui

@@ -106,6 +106,7 @@
     <addaction name="mActionLayoutManager"/>
     <addaction name="separator"/>
     <addaction name="mActionLayoutProperties"/>
+    <addaction name="mActionRenameLayout"/>
     <addaction name="mActionAddPages"/>
     <addaction name="separator"/>
     <addaction name="mActionLoadFromTemplate"/>
@@ -1151,6 +1152,14 @@
     <string>Layout manager</string>
    </property>
   </action>
+  <action name="mActionRenameLayout">
+   <property name="text">
+    <string>Rename Layout…</string>
+   </property>
+   <property name="toolTip">
+    <string>Rename layout</string>
+   </property>
+  </action>
  </widget>
  <resources>
   <include location="../../../images/images.qrc"/>