-

Author: jonathanslenders

examples/full-screen/yes-no-dialog.py

@@ -6,24 +6,25 @@
 from functools import partial
 from prompt_toolkit.application import Application
 from prompt_toolkit.buffer import Buffer
+from prompt_toolkit.contrib.completers import WordCompleter
 from prompt_toolkit.document import Document
+from prompt_toolkit.eventloop.base import EventLoop
 from prompt_toolkit.eventloop.defaults import create_event_loop
+from prompt_toolkit.filters import Condition, has_focus
+from prompt_toolkit.key_binding.bindings.focus import focus_next, focus_previous
 from prompt_toolkit.key_binding.defaults import load_key_bindings
 from prompt_toolkit.key_binding.key_bindings import KeyBindings, merge_key_bindings
 from prompt_toolkit.keys import Keys
 from prompt_toolkit.layout.containers import VSplit, HSplit, Window, Align, to_window, FloatContainer, Float, Container, ConditionalContainer
 from prompt_toolkit.layout.controls import BufferControl, TokenListControl, UIControlKeyBindings
 from prompt_toolkit.layout.dimension import Dimension as D
 from prompt_toolkit.layout.layout import Layout
-from prompt_toolkit.layout.processors import PasswordProcessor
 from prompt_toolkit.layout.lexers import PygmentsLexer
+from prompt_toolkit.layout.processors import PasswordProcessor
 from prompt_toolkit.styles.from_pygments import style_from_pygments
 from prompt_toolkit.token import Token
-from prompt_toolkit.filters import Condition, has_focus
 from prompt_toolkit.utils import get_cwidth
-from prompt_toolkit.eventloop.base import EventLoop
 from pygments.lexers import HtmlLexer
-from prompt_toolkit.contrib.completers import WordCompleter
 
 loop = create_event_loop()
 
@@ -242,35 +243,9 @@ def accept_no(app):
 ])
 
 # Global key bindings.
-
 bindings = KeyBindings()
-
-@bindings.add(Keys.Tab)
-def _(event):
- windows = event.app.focussable_windows
- if len(windows) > 0:
- try:
- index = windows.index(event.app.layout.current_window)
- except ValueError:
- index = 0
- else:
- index = (index + 1) % len(windows)
-
- event.app.layout.focus(windows[index])
-
-
-@bindings.add(Keys.BackTab)
-def _(event):
- windows = event.app.focussable_windows
- if len(windows) > 0:
- try:
- index = windows.index(event.app.layout.current_window)
- except ValueError:
- index = 0
- else:
- index = (index - 1) % len(windows)
-
- event.app.layout.focus(windows[index])
+bindings.add(Keys.Tab)(focus_next)
+bindings.add(Keys.BackTab)(focus_previous)
 
 
 style = style_from_pygments(style_dict={

prompt_toolkit/key_binding/bindings/focus.py

@@ -0,0 +1,40 @@
+from __future__ import unicode_literals
+
+__all__ = (
+ 'focus_next',
+ 'focus_previous',
+)
+
+
+def focus_next(event):
+ """
+ Focus the next visible Window.
+ (Often bound to the `Tab` key.)
+ """
+ windows = event.app.focussable_windows
+ if len(windows) > 0:
+ try:
+ index = windows.index(event.app.layout.current_window)
+ except ValueError:
+ index = 0
+ else:
+ index = (index + 1) % len(windows)
+
+ event.app.layout.focus(windows[index])
+
+
+def focus_previous(event):
+ """
+ Focus the previous visible Window.
+ (Often bound to the `BackTab` key.)
+ """
+ windows = event.app.focussable_windows
+ if len(windows) > 0:
+ try:
+ index = windows.index(event.app.layout.current_window)
+ except ValueError:
+ index = 0
+ else:
+ index = (index - 1) % len(windows)
+
+ event.app.layout.focus(windows[index])