Move some model designer code to c++

python/PyQt6/gui/auto_generated/processing/models/qgsmodeldesignerdialog.sip.in

@@ -94,6 +94,8 @@ Raise, unminimize and activate this window.
 
     virtual bool saveModel( bool saveAs = false ) = 0;
 
+    virtual QgsProcessingAlgorithmDialogBase *createExecutionDialog() = 0 /TransferBack/;
+
     QToolBar *toolbar();
     QAction *actionOpen();
     QAction *actionSaveInProject();

python/gui/auto_generated/processing/models/qgsmodeldesignerdialog.sip.in

@@ -94,6 +94,8 @@ Raise, unminimize and activate this window.
 
     virtual bool saveModel( bool saveAs = false ) = 0;
 
+    virtual QgsProcessingAlgorithmDialogBase *createExecutionDialog() = 0 /TransferBack/;
+
     QToolBar *toolbar();
     QAction *actionOpen();
     QAction *actionSaveInProject();

python/plugins/processing/modeler/ModelerDialog.py

@@ -100,7 +100,6 @@ class ModelerDialog(QgsModelDesignerDialog):
 
         self.actionOpen().triggered.connect(self.openModel)
         self.actionSaveInProject().triggered.connect(self.saveInProject)
-        self.actionRun().triggered.connect(self.runModel)
 
         if model is not None:
             _model = model.create()
@@ -122,37 +121,9 @@ class ModelerDialog(QgsModelDesignerDialog):
 
         self.context_generator = ContextGenerator(self.processing_context)
 
-    def runModel(self):
-        valid, errors = self.model().validate()
-        if not valid:
-            message_box = QMessageBox()
-            message_box.setWindowTitle(self.tr('Model is Invalid'))
-            message_box.setIcon(QMessageBox.Icon.Warning)
-            message_box.setText(self.tr('This model is not valid and contains one or more issues. Are you sure you want to run it in this state?'))
-            message_box.setStandardButtons(QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.Cancel)
-            message_box.setDefaultButton(QMessageBox.StandardButton.Cancel)
-
-            error_string = ''
-            for e in errors:
-                e = re.sub(r'<[^>]*>', '', e)
-                error_string += f'• {e}\n'
-
-            message_box.setDetailedText(error_string)
-            if message_box.exec() == QMessageBox.StandardButton.Cancel:
-                return
-
-        def on_finished(successful, results):
-            self.setLastRunChildAlgorithmResults(dlg.results().get('CHILD_RESULTS', {}))
-            self.setLastRunChildAlgorithmInputs(dlg.results().get('CHILD_INPUTS', {}))
-
+    def createExecutionDialog(self):
         dlg = AlgorithmDialog(self.model().create(), parent=self)
-        dlg.setLogLevel(QgsProcessingContext.LogLevel.ModelDebug)
-        dlg.setParameters(self.model().designerParameterValues())
-        dlg.algorithmFinished.connect(on_finished)
-        dlg.exec()
-
-        if dlg.wasExecuted():
-            self.model().setDesignerParameterValues(dlg.createProcessingParameters(flags=QgsProcessingParametersGenerator.Flags(QgsProcessingParametersGenerator.Flag.SkipDefaultValueParameters)))
+        return dlg
 
     def saveInProject(self):
         if not self.validateSave(QgsModelDesignerDialog.SaveAction.SaveInProject):

src/gui/processing/models/qgsmodeldesignerdialog.cpp

@@ -38,7 +38,7 @@
 #include "qgsprocessinghelpeditorwidget.h"
 #include "qgsscreenhelper.h"
 #include "qgsmessagelog.h"
-
+#include "qgsprocessingalgorithmdialogbase.h"
 #include <QShortcut>
 #include <QKeySequence>
 #include <QFileDialog>
@@ -157,6 +157,7 @@ QgsModelDesignerDialog::QgsModelDesignerDialog( QWidget *parent, Qt::WindowFlags
   connect( mActionReorderOutputs, &QAction::triggered, this, &QgsModelDesignerDialog::reorderOutputs );
   connect( mActionEditHelp, &QAction::triggered, this, &QgsModelDesignerDialog::editHelp );
   connect( mReorderInputsButton, &QPushButton::clicked, this, &QgsModelDesignerDialog::reorderInputs );
+  connect( mActionRun, &QAction::triggered, this, &QgsModelDesignerDialog::run );
 
   mActionSnappingEnabled->setChecked( settings.value( QStringLiteral( "/Processing/Modeler/enableSnapToGrid" ), false ).toBool() );
   connect( mActionSnappingEnabled, &QAction::toggled, this, [ = ]( bool enabled )
@@ -994,6 +995,52 @@ void QgsModelDesignerDialog::editHelp()
   }
 }
 
+void QgsModelDesignerDialog::run()
+{
+  QStringList errors;
+  const bool isValid = model()->validate( errors );
+  if ( !isValid )
+  {
+    QMessageBox messageBox;
+    messageBox.setWindowTitle( tr( "Model is Invalid" ) );
+    messageBox.setIcon( QMessageBox::Icon::Warning );
+    messageBox.setText( tr( "This model is not valid and contains one or more issues. Are you sure you want to run it in this state?" ) );
+    messageBox.setStandardButtons( QMessageBox::StandardButton::Yes | QMessageBox::StandardButton::Cancel );
+    messageBox.setDefaultButton( QMessageBox::StandardButton::Cancel );
+
+    QString errorString;
+    for ( const QString &error : std::as_const( errors ) )
+    {
+      QString cleanedError = error;
+      const thread_local QRegularExpression re( QStringLiteral( "<[^>]*>" ) );
+      cleanedError.replace( re, QString() );
+      errorString += QStringLiteral( "• %1\n" ).arg( cleanedError );
+    }
+
+    messageBox.setDetailedText( errorString );
+    if ( messageBox.exec() == QMessageBox::StandardButton::Cancel )
+      return;
+  }
+
+  std::unique_ptr< QgsProcessingAlgorithmDialogBase > dialog( createExecutionDialog() );
+  if ( !dialog )
+    return;
+
+  dialog->setLogLevel( Qgis::ProcessingLogLevel::ModelDebug );
+  dialog->setParameters( mModel->designerParameterValues() );
+
+  connect( dialog.get(), &QgsProcessingAlgorithmDialogBase::algorithmFinished, this, [this, &dialog]( bool, const QVariantMap & )
+  {
+    const QVariantMap dialogResults = dialog->results();
+    setLastRunChildAlgorithmResults( dialogResults.value( QStringLiteral( "CHILD_RESULTS" ), QVariantMap() ).toMap() );
+    setLastRunChildAlgorithmInputs( dialogResults.value( QStringLiteral( "CHILD_INPUTS" ), QVariantMap() ).toMap() );
+
+    mModel->setDesignerParameterValues( dialog->createProcessingParameters( QgsProcessingParametersGenerator::Flag::SkipDefaultValueParameters ) );
+  } );
+
+  dialog->exec();
+}
+
 void QgsModelDesignerDialog::validate()
 {
   QStringList issues;

src/gui/processing/models/qgsmodeldesignerdialog.h

@@ -30,6 +30,7 @@ class QUndoView;
 class QgsModelViewToolPan;
 class QgsModelViewToolSelect;
 class QgsScreenHelper;
+class QgsProcessingAlgorithmDialogBase;
 
 ///@cond NOT_STABLE
 
@@ -126,6 +127,8 @@ class GUI_EXPORT QgsModelDesignerDialog : public QMainWindow, public Ui::QgsMode
     virtual void exportAsScriptAlgorithm() = 0;
     // cppcheck-suppress pureVirtualCall
     virtual bool saveModel( bool saveAs = false ) = 0;
+    // cppcheck-suppress pureVirtualCall
+    virtual QgsProcessingAlgorithmDialogBase *createExecutionDialog() = 0 SIP_TRANSFERBACK;
 
     QToolBar *toolbar() { return mToolbar; }
     QAction *actionOpen() { return mActionOpen; }
@@ -186,6 +189,7 @@ class GUI_EXPORT QgsModelDesignerDialog : public QMainWindow, public Ui::QgsMode
     void reorderOutputs();
     void setPanelVisibility( bool hidden );
     void editHelp();
+    void run();
 
   private: