[processing] populate batch interface with rows when multiple layers

selected (fix #21859)

python/plugins/processing/gui/BatchInputSelectionPanel.py

@@ -86,13 +86,11 @@ def showPopupMenu(self):
 
         if not (isinstance(self.param, QgsProcessingParameterMultipleLayers) and
                 self.param.layerType == dataobjects.TYPE_FILE):
-            selectLayerAction = QAction(
-                QCoreApplication.translate('BatchInputSelectionPanel', 'Select from Open Layers…'), self.pushButton)
+            selectLayerAction = QAction(self.tr('Select from Open Layers…'), self.pushButton)
             selectLayerAction.triggered.connect(self.showLayerSelectionDialog)
             popupmenu.addAction(selectLayerAction)
 
-        selectFileAction = QAction(
-            QCoreApplication.translate('BatchInputSelectionPanel', 'Select from File System…'), self.pushButton)
+        selectFileAction = QAction(self.tr('Select from File System…'), self.pushButton)
         selectFileAction.triggered.connect(self.showFileSelectionDialog)
         popupmenu.addAction(selectFileAction)
 
@@ -146,13 +144,13 @@ def generate_layer_id(layer):
 
     def showFileSelectionDialog(self):
         settings = QgsSettings()
-        text = str(self.text.text())
+        text = self.text.text()
         if os.path.isdir(text):
             path = text
         elif os.path.isdir(os.path.dirname(text)):
             path = os.path.dirname(text)
         elif settings.contains('/Processing/LastInputPath'):
-            path = str(settings.value('/Processing/LastInputPath'))
+            path = settings.value('/Processing/LastInputPath')
         else:
             path = ''
 
@@ -161,7 +159,7 @@ def showFileSelectionDialog(self):
         if ret:
             files = list(ret)
             settings.setValue('/Processing/LastInputPath',
-                              os.path.dirname(str(files[0])))
+                              os.path.dirname(files[0]))
             for i, filename in enumerate(files):
                 files[i] = dataobjects.getRasterSublayer(filename, self.param)
             if len(files) == 1:

python/plugins/processing/gui/BatchPanel.py

@@ -36,6 +36,10 @@
                        QgsApplication,
                        QgsSettings,
                        QgsProperty,
+                       QgsProcessingParameterMapLayer,
+                       QgsProcessingParameterRasterLayer,
+                       QgsProcessingParameterVectorLayer,
+                       QgsProcessingParameterFile,
                        QgsProcessingFeatureSourceDefinition,
                        QgsCoordinateReferenceSystem,
                        QgsProcessingParameterDefinition,
@@ -46,6 +50,7 @@
 
 from processing.gui.wrappers import WidgetWrapperFactory, WidgetWrapper
 from processing.gui.BatchOutputSelectionPanel import BatchOutputSelectionPanel
+from processing.gui.BatchInputSelectionPanel import BatchInputSelectionPanel
 
 from processing.tools import dataobjects
 from processing.tools.dataobjects import createContext
@@ -292,9 +297,16 @@ def addRow(self):
             if param.flags() & QgsProcessingParameterDefinition.FlagHidden or param.isDestination():
                 continue
 
-            wrapper = WidgetWrapperFactory.create_wrapper(param, self.parent, row, column)
-            wrappers[param.name()] = wrapper
-            self.setCellWrapper(row, column, wrapper, context)
+            if isinstance(param, (QgsProcessingParameterMapLayer, QgsProcessingParameterRasterLayer,
+                                  QgsProcessingParameterVectorLayer, QgsProcessingParameterFile)):
+                self.tblParameters.setCellWidget(
+                    row, column, BatchInputSelectionPanel(
+                        param, row, column, self.parent))
+            else:
+                wrapper = WidgetWrapperFactory.create_wrapper(param, self.parent, row, column)
+                wrappers[param.name()] = wrapper
+                self.setCellWrapper(row, column, wrapper, context)
+
             column += 1
 
         for out in self.alg.destinationParameterDefinitions():

python/plugins/processing/gui/ParameterGuiUtils.py

@@ -84,7 +84,7 @@ def getFileFilter(param):
     elif param.type() == 'fileDestination':
         return param.fileFilter() + ';;' + tr('All files (*.*)')
 
-    if param.defaultFileExtension():
+    if hasattr(param, 'defaultFileExtension') and param.defaultFileExtension():
         return tr('Default extension') + ' (*.' + param.defaultFileExtension() + ')'
     else:
         return ''