unselect text, if any, on eaf-keyboard-quit

Author: taquangtrung

core/webengine.py

@@ -195,6 +195,8 @@ def action_quit(self):
                 self.buffer.caret_toggle_mark()
             else:
                 self.buffer.caret_exit()
+        if self.web_page.hasSelection():
+            self.triggerPageAction(self.web_page.Unselect)
 
     def select_text_change(self):
         ''' Change selected text.'''