Port getHTMLOutputsCount to c++ API

python/core/processing/qgsprocessingalgorithm.sip

@@ -207,6 +207,12 @@ class QgsProcessingAlgorithm
  :rtype: QgsProcessingOutputDefinition
 %End
 
+    bool hasHtmlOutputs() const;
+%Docstring
+ Returns true if this algorithm generates HTML outputs.
+ :rtype: bool
+%End
+
     QVariantMap run( const QVariantMap &parameters,
                      QgsProcessingContext &context, QgsProcessingFeedback *feedback ) const;
 %Docstring

python/plugins/processing/core/GeoAlgorithm.py

@@ -297,15 +297,6 @@ def setOutputValue(self, outputName, value):
             if out.name == outputName:
                 out.setValue(value)
 
-    def getHTMLOutputsCount(self):
-        """Returns the number of HTML outputs.
-        """
-        i = 0
-        for out in self.outputs:
-            if isinstance(out, OutputHTML):
-                i += 1
-        return i
-
     def removeOutputFromName(self, name):
         for out in self.outputs:
             if out.name == name:

python/plugins/processing/gui/AlgorithmDialog.py

@@ -268,7 +268,7 @@ def finish(self, result, context):
             self.close()
         else:
             self.resetGUI()
-            if self.alg.getHTMLOutputsCount() > 0:
+            if self.alg.hasHtmlOutputs():
                 self.setInfo(
                     self.tr('HTML output has been generated by this algorithm.'
                             '\nOpen the results dialog to check it.'))

src/core/processing/qgsprocessingalgorithm.cpp

@@ -187,6 +187,16 @@ const QgsProcessingOutputDefinition *QgsProcessingAlgorithm::outputDefinition( c
   return nullptr;
 }
 
+bool QgsProcessingAlgorithm::hasHtmlOutputs() const
+{
+  Q_FOREACH ( const QgsProcessingOutputDefinition *def, mOutputs )
+  {
+    if ( def->type() == QStringLiteral( "outputHtml" ) )
+      return true;
+  }
+  return false;
+}
+
 QVariantMap QgsProcessingAlgorithm::run( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) const
 {
   return processAlgorithm( parameters, context, feedback );
@@ -252,6 +262,11 @@ QString QgsProcessingAlgorithm::parameterAsRasterOutputLayer( const QVariantMap
   return QgsProcessingParameters::parameterAsRasterOutputLayer( parameterDefinition( name ), parameters, context );
 }
 
+QString QgsProcessingAlgorithm::parameterAsFileOutput( const QVariantMap &parameters, const QString &name, QgsProcessingContext &context ) const
+{
+  return QgsProcessingParameters::parameterAsFileOutput( parameterDefinition( name ), parameters, context );
+}
+
 QgsVectorLayer *QgsProcessingAlgorithm::parameterAsVectorLayer( const QVariantMap &parameters, const QString &name, QgsProcessingContext &context ) const
 {
   return QgsProcessingParameters::parameterAsVectorLayer( parameterDefinition( name ), parameters, context );

src/core/processing/qgsprocessingalgorithm.h

@@ -210,6 +210,11 @@ class CORE_EXPORT QgsProcessingAlgorithm
      */
     const QgsProcessingOutputDefinition *outputDefinition( const QString &name ) const;
 
+    /**
+     * Returns true if this algorithm generates HTML outputs.
+     */
+    bool hasHtmlOutputs() const;
+
     /**
      * Executes the algorithm using the specified \a parameters.
      *

tests/src/core/testqgsprocessing.cpp

@@ -119,6 +119,11 @@ class DummyAlgorithm : public QgsProcessingAlgorithm
       // parameterDefinition should be case insensitive
       QCOMPARE( outputDefinition( "P1" ), outputDefinitions().at( 0 ) );
       QVERIFY( !outputDefinition( "invalid" ) );
+
+      QVERIFY( !hasHtmlOutputs() );
+      QgsProcessingOutputHtml *p3 = new QgsProcessingOutputHtml( "p3" );
+      QVERIFY( addOutput( p3 ) );
+      QVERIFY( hasHtmlOutputs() );
     }
 
 };