""" An action that shows a dialog to allow the user to choose a view. """


# Local imports.
from .view_chooser import ViewChooser
from .workbench_action import WorkbenchAction


class ShowViewAction(WorkbenchAction):
    """ An action that shows a dialog to allow the user to choose a view. """

    #### 'Action' interface ###################################################

    # The action's unique identifier (may be None).
    id = 'pyface.workbench.action.show_view'

    # The action's name (displayed on menus/tool bar tools etc).
    name = 'Show View'

    ###########################################################################
    # 'Action' interface.
    ###########################################################################

    def perform(self, event):
        """ Perform the action. """

        chooser = ViewChooser(window=self.window)

        ui = chooser.edit_traits(parent=self.window.control, kind='livemodal')

        # If the user closes the dialog by using the window manager's close button
        # (e.g. the little [x] in the top corner), ui.result is True, but chooser.view
        # might be None, so we need an explicit check for that.
        if ui.result and chooser.view is not None:
            # This shows the view...
            chooser.view.show()

            # ... and this makes it active (brings it to the front, gives it
            # focus etc).
            chooser.view.activate()

        return

#### EOF ######################################################################