Refs #23642 Add files.

scripts/Muon/GUI/Common/help_widget/help_widget_model.py

+from __future__ import (absolute_import, division, print_function)
+
+
+class HelpWidgetModel(object):
+
+    def __init__(self):
+        pass

scripts/Muon/GUI/Common/help_widget/help_widget_presenter.py

+from __future__ import (absolute_import, division, print_function)
+
+
+class HelpWidgetPresenter(object):
+
+    def __init__(self, view, model):
+        self._view = view
+        self._model = model
+
+        self._view.on_manage_user_directories_clicked(self.handle_manage_user_directories)
+        self._view.on_help_button_clicked(self.handle_help_button_clicked)
+
+    def handle_manage_user_directories(self):
+        self._view.show_directory_manager()
+
+    def handle_help_button_clicked(self):
+        self._view.warning_popup("Help is not currently implemented!")

scripts/Muon/GUI/Common/help_widget/help_widget_view.py

+from __future__ import (absolute_import, division, print_function)
+
+from PyQt4 import QtGui, QtCore
+import Muon.GUI.Common.message_box as message_box
+
+# determine whether the interface is opened from within Mantid or not
+# (outside of Mantid we cannot use the "Manage user directories" functionality)
+STANDALONE_EXEC = True
+try:
+    from mantidqtpython import MantidQt
+except:
+    STANDALONE_EXEC = False
+
+
+class HelpWidgetView(QtGui.QWidget):
+
+    @staticmethod
+    def warning_popup(message):
+        message_box.warning(str(message))
+
+    def __init__(self, parent=None):
+        super(HelpWidgetView, self).__init__(parent)
+
+        self.setup_interface_layout()
+
+    def setup_interface_layout(self):
+        self.setObjectName("HelpWidget")
+        self.resize(500, 100)
+
+        self.help_label = QtGui.QLabel(self)
+        self.help_label.setObjectName("helpLabel")
+        self.help_label.setText("Help : ")
+
+        self.help_button = QtGui.QToolButton(self)
+        self.help_button.setObjectName("rebinHelpButton")
+        self.help_button.setText("?")
+
+        self.manage_user_dir_button = QtGui.QPushButton(self)
+        self.manage_user_dir_button.setObjectName("manageUserDirectoriesButton")
+        self.manage_user_dir_button.setText("Manage User Directories")
+
+        self.horizontal_layout = QtGui.QHBoxLayout()
+        self.horizontal_layout.setObjectName("horizontalLayout")
+        self.horizontal_layout.addWidget(self.help_label)
+        self.horizontal_layout.addWidget(self.help_button)
+        self.horizontal_layout.addStretch(0)
+        self.horizontal_layout.addWidget(self.manage_user_dir_button)
+
+        self.setLayout(self.horizontal_layout)
+
+    def getLayout(self):
+        return self.horizontal_layout
+
+    def on_manage_user_directories_clicked(self, slot):
+        self.manage_user_dir_button.clicked.connect(slot)
+
+    def on_help_button_clicked(self, slot):
+        self.help_button.clicked.connect(slot)
+
+    def show_directory_manager(self):
+        if STANDALONE_EXEC:
+            MantidQt.API.ManageUserDirectories.openUserDirsDialog(self)
+        else:
+            self.warning_popup("Cannot open user directories dailog outside MantidPlot.")
+
+