Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/prompt_toolkit/filters/__init__.py: 100%

1""" 

2Filters decide whether something is active or not (they decide about a boolean 

3state). This is used to enable/disable features, like key bindings, parts of 

4the layout and other stuff. For instance, we could have a `HasSearch` filter 

5attached to some part of the layout, in order to show that part of the user 

6interface only while the user is searching. 

7 

8Filters are made to avoid having to attach callbacks to all event in order to 

9propagate state. However, they are lazy, they don't automatically propagate the 

10state of what they are observing. Only when a filter is called (it's actually a 

11callable), it will calculate its value. So, its not really reactive 

12programming, but it's made to fit for this framework. 

13 

14Filters can be chained using ``&`` and ``|`` operations, and inverted using the 

15``~`` operator, for instance:: 

16 

17 filter = has_focus('default') & ~ has_selection 

18""" 

19from __future__ import annotations 

20 

21from .app import * 

22from .base import Always, Condition, Filter, FilterOrBool, Never 

23from .cli import * 

24from .utils import is_true, to_filter 

25 

26__all__ = [ 

27 # app 

28 "has_arg", 

29 "has_completions", 

30 "completion_is_selected", 

31 "has_focus", 

32 "buffer_has_focus", 

33 "has_selection", 

34 "has_validation_error", 

35 "is_done", 

36 "is_read_only", 

37 "is_multiline", 

38 "renderer_height_is_known", 

39 "in_editing_mode", 

40 "in_paste_mode", 

41 "vi_mode", 

42 "vi_navigation_mode", 

43 "vi_insert_mode", 

44 "vi_insert_multiple_mode", 

45 "vi_replace_mode", 

46 "vi_selection_mode", 

47 "vi_waiting_for_text_object_mode", 

48 "vi_digraph_mode", 

49 "vi_recording_macro", 

50 "emacs_mode", 

51 "emacs_insert_mode", 

52 "emacs_selection_mode", 

53 "shift_selection_mode", 

54 "is_searching", 

55 "control_is_searchable", 

56 "vi_search_direction_reversed", 

57 # base. 

58 "Filter", 

59 "Never", 

60 "Always", 

61 "Condition", 

62 "FilterOrBool", 

63 # utils. 

64 "is_true", 

65 "to_filter", 

66] 

67 

68from .cli import __all__ as cli_all 

69 

70__all__.extend(cli_all)