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Specify minimum selected item count for CliMutliMenu

min_selection_count=n can be specify to indicate that at least n
items need to be selected before the selection is accepted.
Feature inspired by python pick.
new-styles
Sebastian Lohff 2 years ago
parent
commit
24dab5f69b
  1. 25
      clintermission/climenu.py

25
clintermission/climenu.py

@ -230,11 +230,18 @@ class CliMenu: @@ -230,11 +230,18 @@ class CliMenu:
def _register_extra_kb_cbs(self, kb):
pass
def _run(self):
def _preflight(self):
if self._initial_pos < 0 or self._initial_pos >= self._item_num:
raise ValueError("Initial position {} is out of range, needs to be in range of [0, {})"
.format(self._initial_pos, self._item_num))
def _accept(self, event):
self._success = True
event.app.exit()
def _run(self):
self._preflight()
class MenuColorizer(Processor):
def apply_transformation(_self, ti):
return self._transform_line(ti)
@ -272,8 +279,7 @@ class CliMenu: @@ -272,8 +279,7 @@ class CliMenu:
@self._kb.add('c-m', filter=~is_searching)
@self._kb.add('right', filter=~is_searching)
def accept(event):
self._success = True
event.app.exit()
self._accept(event)
@self._kb.add('c-m', filter=is_searching)
def accept_search(event):
@ -317,8 +323,9 @@ class CliMultiMenu(CliMenu): @@ -317,8 +323,9 @@ class CliMultiMenu(CliMenu):
def set_default_selector_icons(cls, selection_icons):
cls.default_selection_icons = selection_icons
def __init__(self, *args, selection_icons=None, **kwargs):
def __init__(self, *args, selection_icons=None, min_selection_count=0, **kwargs):
self._multi_selected = []
self._min_selection_count = min_selection_count
self._selection_icons = selection_icons if selection_icons is not None else self.default_selection_icons
super().__init__(*args, **kwargs)
@ -364,6 +371,16 @@ class CliMultiMenu(CliMenu): @@ -364,6 +371,16 @@ class CliMultiMenu(CliMenu):
else:
return prefix
def _preflight(self):
super()._preflight()
if self._min_selection_count > self._item_num:
raise ValueError("A minimum of {} items was requested for successful selection but only {} exist"
.format(self._min_selection_count, self._item_num))
def _accept(self, event):
if len(self._multi_selected) >= self._min_selection_count:
super()._accept(event)
def cli_select_item(options, header=None, abort_exc=ValueError, abort_text="Selection aborted.", style=None,
return_single=True):

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