File: popup_editor.py

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python-traitsui 4.4.0-1.3
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#-------------------------------------------------------------------------------
#  Imports:
#-------------------------------------------------------------------------------

from __future__ import absolute_import

from traits.api import Float, Enum, Any, Property

from ..view import View

from ..item import Item

from ..editor_factory import EditorFactory

from ..basic_editor_factory import BasicEditorFactory

from .text_editor import TextEditor

from ..ui_traits import EditorStyle

from ..ui_editor import UIEditor

from ..toolkit import toolkit_object

#-------------------------------------------------------------------------------
#  '_PopupEditor' class:
#-------------------------------------------------------------------------------

class _PopupEditor ( UIEditor ):

    #---------------------------------------------------------------------------
    #  Creates the traits UI for the editor:
    #---------------------------------------------------------------------------

    def init_ui ( self, parent ):
        """ Creates the traits UI for the editor.
        """
        return self.object.edit_traits( view   = self.base_view(),
                                        parent = parent )

    def base_view ( self ):
        """ Returns the View that allows the popup view to be displayed.
        """
        return View(
            Item( self.name,
                  show_label = False,
                  style      = 'readonly',
                  editor     = TextEditor( view = self.popup_view() ),
                  padding    = -4,
            ),
            kind = 'subpanel'
        )

    def popup_view ( self ):
        """ Returns the popup View.
        """
        factory = self.factory
        item    = Item( self.name,
                        show_label = False,
                        padding    = -4,
                        style      = factory.style,
                        height     = factory.height,
                        width      = factory.width )

        editor = factory.editor
        if editor is not None:
            if not isinstance( editor, EditorFactory ):
                editor = editor()
            item.editor = editor

        return View( item, kind = factory.kind )

#-------------------------------------------------------------------------------
#  'PopupEditor' class:
#-------------------------------------------------------------------------------

class PopupEditor ( BasicEditorFactory ):

    # The class used to construct editor objects:
    klass = Property

    # The kind of popup to use:
    kind = Enum( 'popover', 'popup', 'info' )

    # The editor to use for the pop-up view (can be None (use default editor),
    # an EditorFactory instance, or a callable that returns an EditorFactory
    # instance):
    editor = Any

    # The style of editor to use for the popup editor (same as Item.style):
    style = EditorStyle

    # The height of the popup (same as Item.height):
    height = Float( -1.0 )

    # The width of the popup (same as Item.width):
    width = Float( -1.0 )

    def _get_klass( self ):
        """ The class used to construct editor objects.
        """
        return toolkit_object('popup_editor:_PopupEditor')