use int as IDs to recognize context menu entries

python/core/auto_generated/locator/qgslocatorfilter.sip.in

@@ -48,7 +48,7 @@ Constructor for QgsLocatorResult.
 
     QString group;
 
-    QList<QAction *> contextMenuActions;
+    QMap<int, QAction *> contextMenuActions = QMap<int, QAction *>();
 
 };
 
@@ -177,11 +177,10 @@ E.g. a file search filter would open file associated with the triggered
 result.
 %End
 
-    virtual void triggerResultFromContextMenu( const QgsLocatorResult &result, const QAction *action );
+    virtual void triggerResultFromContextMenu( const QgsLocatorResult &result, const int id );
 %Docstring
-Triggers a filter ``result`` from this filter for a given action.
-Actions are specified in the result given by this filter and shown
-as context menu entries.
+Triggers a filter ``result`` from this filter for an entry in the context menu.
+The entry is identified by its \id as specified in the result of this filter.
 
 .. seealso:: :py:func:`triggerResult`
 

python/core/auto_generated/locator/qgslocatormodelbridge.sip.in

@@ -57,7 +57,7 @@ Returns true if some text to be search is pending in the queue
 Returns true if the a search is currently running
 %End
 
-    void triggerResult( const QModelIndex &index,  const QAction *action = 0 );
+    void triggerResult( const QModelIndex &index,  const int id = -1 );
 %Docstring
 Triggers the result at given ``index`` and with optional ``action`` if context menu entry was triggered
 %End

src/app/locator/qgsinbuiltlocatorfilters.cpp

@@ -402,7 +402,7 @@ void QgsAllLayersFeaturesLocatorFilter::fetchResults( const QString &string, con
       result.icon = preparedLayer.layerIcon;
       result.score = static_cast< double >( string.length() ) / result.displayString.size();
 
-      result.contextMenuActions << new QAction( tr( "Open form" ) );
+      result.contextMenuActions.insert( OpenForm, new QAction( tr( "Open form" ) ) );
       emit resultFetched( result );
 
       foundInCurrentLayer++;
@@ -417,28 +417,23 @@ void QgsAllLayersFeaturesLocatorFilter::fetchResults( const QString &string, con
 
 void QgsAllLayersFeaturesLocatorFilter::triggerResult( const QgsLocatorResult &result )
 {
-  triggerResultFromContextMenu( result, nullptr );
+  triggerResultFromContextMenu( result, NoEntry );
 }
 
-void QgsAllLayersFeaturesLocatorFilter::triggerResultFromContextMenu( const QgsLocatorResult &result, const QAction *action )
+void QgsAllLayersFeaturesLocatorFilter::triggerResultFromContextMenu( const QgsLocatorResult &result, const int id )
 {
   QVariantList dataList = result.userData.toList();
-  QgsFeatureId id = dataList.at( 0 ).toLongLong();
+  QgsFeatureId fid = dataList.at( 0 ).toLongLong();
   QString layerId = dataList.at( 1 ).toString();
   QgsVectorLayer *layer = qobject_cast< QgsVectorLayer *>( QgsProject::instance()->mapLayer( layerId ) );
   if ( !layer )
     return;
 
-  if ( !action )
+  if ( id == OpenForm )
   {
-    QgisApp::instance()->mapCanvas()->zoomToFeatureIds( layer, QgsFeatureIds() << id );
-  }
-  else
-  {
-    // no need to check for which action, since the filter shows only one
     QgsFeature f;
     QgsFeatureRequest request;
-    request.setFilterFid( id );
+    request.setFilterFid( fid );
     bool fetched = layer->getFeatures( request ).nextFeature( f );
     if ( !fetched )
       return;
@@ -452,6 +447,10 @@ void QgsAllLayersFeaturesLocatorFilter::triggerResultFromContextMenu( const QgsL
       action.viewFeatureForm();
     }
   }
+  else
+  {
+    QgisApp::instance()->mapCanvas()->zoomToFeatureIds( layer, QgsFeatureIds() << fid );
+  }
 }
 
 //

src/app/locator/qgsinbuiltlocatorfilters.h

@@ -119,6 +119,12 @@ class APP_EXPORT QgsAllLayersFeaturesLocatorFilter : public QgsLocatorFilter
     Q_OBJECT
 
   public:
+    enum ContextMenuEntry
+    {
+      NoEntry,
+      OpenForm
+    };
+
     struct PreparedLayer
     {
       public:
@@ -128,7 +134,7 @@ class APP_EXPORT QgsAllLayersFeaturesLocatorFilter : public QgsLocatorFilter
         QString layerName;
         QString layerId;
         QIcon layerIcon;
-    } ;
+    };
 
     QgsAllLayersFeaturesLocatorFilter( QObject *parent = nullptr );
     QgsAllLayersFeaturesLocatorFilter *clone() const override;
@@ -140,7 +146,7 @@ class APP_EXPORT QgsAllLayersFeaturesLocatorFilter : public QgsLocatorFilter
     void prepare( const QString &string, const QgsLocatorContext &context ) override;
     void fetchResults( const QString &string, const QgsLocatorContext &context, QgsFeedback *feedback ) override;
     void triggerResult( const QgsLocatorResult &result ) override;
-    void triggerResultFromContextMenu( const QgsLocatorResult &result, const QAction *action ) override;
+    void triggerResultFromContextMenu( const QgsLocatorResult &result, const int id ) override;
 
   private:
     int mMaxResultsPerLayer = 6;

src/core/locator/qgslocatorfilter.cpp

@@ -33,10 +33,10 @@ QgsLocatorFilter::Flags QgsLocatorFilter::flags() const
   return nullptr;
 }
 
-void QgsLocatorFilter::triggerResultFromContextMenu( const QgsLocatorResult &result, const QAction *action )
+void QgsLocatorFilter::triggerResultFromContextMenu( const QgsLocatorResult &result, const int id )
 {
   Q_UNUSED( result );
-  Q_UNUSED( action );
+  Q_UNUSED( id );
 }
 
 bool QgsLocatorFilter::stringMatches( const QString &candidate, const QString &search )

src/core/locator/qgslocatorfilter.h

@@ -89,14 +89,19 @@ class CORE_EXPORT QgsLocatorResult
       * If left as empty string, this means that results are all shown without being grouped.
       * If a group is given, the results will be grouped by \a group under a header.
       * \note This should be translated.
-      * \since 3.2
+      * \since QGIS 3.2
       */
     QString group = QString();
 
     /**
-      * Actions to be used in a context menu for the result
+      * Actions to be used in a context menu for the result.
+      * The key of the map is populated with IDs used to recognized
+      * entry when the result is triggered. The IDs should be 0 or greater
+      * otherwise, the result will be triggered normally.
+      * Entries in the context menu will be ordered by IDs.
+      * \since QGIS 3.6
       */
-    QList<QAction *> contextMenuActions = QList<QAction *>();
+    QMap<int, QAction *> contextMenuActions = QMap<int, QAction *>();
 
 };
 
@@ -217,13 +222,12 @@ class CORE_EXPORT QgsLocatorFilter : public QObject
     virtual void triggerResult( const QgsLocatorResult &result ) = 0;
 
     /**
-     * Triggers a filter \a result from this filter for a given action.
-     * Actions are specified in the result given by this filter and shown
-     * as context menu entries.
+     * Triggers a filter \a result from this filter for an entry in the context menu.
+     * The entry is identified by its \id as specified in the result of this filter.
      * \see triggerResult()
      * \since QGIS 3.6
      */
-    virtual void triggerResultFromContextMenu( const QgsLocatorResult &result, const QAction *action );
+    virtual void triggerResultFromContextMenu( const QgsLocatorResult &result, const int id );
 
     /**
      * This method will be called on main thread on the original filter (not a clone)

src/core/locator/qgslocatormodelbridge.cpp

@@ -37,14 +37,14 @@ bool QgsLocatorModelBridge::isRunning() const
   return mIsRunning;
 }
 
-void QgsLocatorModelBridge::triggerResult( const QModelIndex &index, const QAction *action )
+void QgsLocatorModelBridge::triggerResult( const QModelIndex &index, const int id )
 {
   mLocator->clearPreviousResults();
   QgsLocatorResult result = mProxyModel->data( index, QgsLocatorModel::ResultDataRole ).value< QgsLocatorResult >();
   if ( result.filter )
   {
-    if ( action )
-      result.filter->triggerResultFromContextMenu( result, action );
+    if ( id >= 0 )
+      result.filter->triggerResultFromContextMenu( result, id );
     else
       result.filter->triggerResult( result );
   }

src/core/locator/qgslocatormodelbridge.h

@@ -64,7 +64,7 @@ class CORE_EXPORT QgsLocatorModelBridge : public QObject
     bool isRunning() const;
 
     //! Triggers the result at given \a index and with optional \a action if context menu entry was triggered
-    void triggerResult( const QModelIndex &index,  const QAction *action = nullptr );
+    void triggerResult( const QModelIndex &index,  const int id = -1 );
 
   signals:
     //! Emitted when a result is added

src/gui/locator/qgslocatorwidget.cpp

@@ -181,14 +181,14 @@ void QgsLocatorWidget::showContextMenu( const QPoint &point )
   if ( !index.isValid() )
     return;
 
-  const QList<QAction *> actions = mResultsView->model()->data( index, QgsLocatorModel::ResultContextMenuActionsRole ).value<QList<QAction *>>();
-  for ( const QAction *action : actions )
+  const QMap<int, QAction *> actions = mResultsView->model()->data( index, QgsLocatorModel::ResultContextMenuActionsRole ).value<QMap<int, QAction *>>();
+  QMap<int, QAction *>::const_iterator it = actions.constBegin();
+  for ( ; it != actions.constEnd(); ++it )
   {
-    connect( action, &QAction::triggered, this, [ = ]() {mModelBridge->triggerResult( index, action );} );
+    connect( it.value(), &QAction::triggered, this, [ = ]() {mModelBridge->triggerResult( index, it.key() );} );
   }
-
   QMenu *contextMenu = new QMenu( mResultsView );
-  contextMenu->addActions( actions );
+  contextMenu->addActions( actions.values() );
   contextMenu->exec( mResultsView->viewport()->mapToGlobal( point ) );
 }