135 lines
3.9 KiB
Python
135 lines
3.9 KiB
Python
# Copyright 2018 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from urwid import (
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ACTIVATE,
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AttrWrap,
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Button,
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connect_signal,
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LineBox,
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PopUpLauncher,
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SelectableIcon,
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Text,
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WidgetWrap,
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Widget,
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)
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from subiquitycore.ui.container import Columns, ListBox
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from subiquitycore.ui.selector import Option
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from subiquitycore.ui.utils import Color
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class ActionBackButton(Button):
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button_left = Text("<")
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button_right = Text("")
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class ActionMenuButton(Button):
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button_left = Text("")
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button_right = Text(">")
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class _ActionMenuDialog(WidgetWrap):
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"""A list of action buttons with a box around them."""
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def __init__(self, parent):
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self.parent = parent
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close = ActionBackButton("(close)")
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connect_signal(close, "click", self.close)
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group = [Color.menu_button(close)]
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width = 0
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for i, option in enumerate(self.parent._options):
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if option.enabled:
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if isinstance(option.label, Widget):
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btn = option.label
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else:
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btn = Color.menu_button(ActionMenuButton(option.label))
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width = max(width, len(btn.base_widget.label))
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connect_signal(
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btn.base_widget, 'click', self.click, option.value)
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else:
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label = option.label
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if isinstance(label, Widget):
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label = label.base_widget.label
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width = max(width, len(label))
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btn = Columns([
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('fixed', 1, Text("")),
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Text(label),
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('fixed', 1, Text(">")),
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], dividechars=1)
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btn = AttrWrap(btn, 'info_minor')
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group.append(btn)
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self.width = width
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super().__init__(LineBox(ListBox(group)))
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def close(self, sender):
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self.parent.close_pop_up()
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def click(self, btn, value):
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self.parent._action(value)
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self.parent.close_pop_up()
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def keypress(self, size, key):
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if key == 'esc':
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self.parent.close_pop_up()
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else:
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return super().keypress(size, key)
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class ActionMenu(PopUpLauncher):
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icon = ">"
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signals = ['action', 'open', 'close']
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def __init__(self, opts):
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self._options = []
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for opt in opts:
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if not isinstance(opt, Option):
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opt = Option(opt)
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self._options.append(opt)
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self._button = SelectableIcon(self.icon, 0)
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super().__init__(self._button)
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self._dialog = _ActionMenuDialog(self)
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def keypress(self, size, key):
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if self._command_map[key] != ACTIVATE:
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return key
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self.open_pop_up()
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def _action(self, action):
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self._emit("action", action)
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def open_pop_up(self):
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self._dialog._w.base_widget.focus_position = 0
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self._emit("open")
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super().open_pop_up()
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def close_pop_up(self):
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self._emit("close")
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super().close_pop_up()
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def create_pop_up(self):
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return self._dialog
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def get_pop_up_parameters(self):
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width = self._dialog.width + 7
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return {
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'left': 1,
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'top': -1,
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'overlay_width': width,
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'overlay_height': len(self._options) + 3,
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}
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