[processing] Pressing enter in search box executes the selected algor…

…ithm

python/plugins/processing/gui/ProcessingToolbox.py

@@ -71,6 +71,7 @@ def __init__(self):
         self.processingToolbar.setIconSize(iface.iconSize(True))
 
         self.searchBox.textChanged.connect(self.textChanged)
+        self.searchBox.returnPressed.connect(self.activateCurrent)
         self.algorithmTree.customContextMenuRequested.connect(
             self.showPopupMenu)
         self.algorithmTree.doubleClicked.connect(self.executeAlgorithm)
@@ -296,6 +297,9 @@ def editRenderingStyles(self):
             dlg = EditRenderingStylesDialog(alg)
             dlg.exec_()
 
+    def activateCurrent(self):
+        self.executeAlgorithm()
+
     def executeAlgorithmAsBatchProcess(self):
         item = self.algorithmTree.currentItem()
         if isinstance(item, TreeAlgorithmItem):