| 81 | |
| 82 | |
| 83 | class OptionListWalker(urwid.ListWalker): |
| 84 | def __init__(self, master, help_widget: OptionHelp): |
| 85 | self.master = master |
| 86 | self.help_widget = help_widget |
| 87 | |
| 88 | self.index = 0 |
| 89 | self.focusobj = None |
| 90 | |
| 91 | self.opts = sorted(master.options.keys()) |
| 92 | self.maxlen = max(len(i) for i in self.opts) |
| 93 | self.editing = False |
| 94 | self.set_focus(0) |
| 95 | self.master.options.changed.connect(self.sig_mod) |
| 96 | |
| 97 | def sig_mod(self, *args, **kwargs): |
| 98 | self.opts = sorted(self.master.options.keys()) |
| 99 | self.maxlen = max(len(i) for i in self.opts) |
| 100 | self._modified() |
| 101 | self.set_focus(self.index) |
| 102 | |
| 103 | def start_editing(self): |
| 104 | self.editing = True |
| 105 | self.focus_obj = self._get(self.index, True) |
| 106 | self._modified() |
| 107 | |
| 108 | def stop_editing(self): |
| 109 | self.editing = False |
| 110 | self.focus_obj = self._get(self.index, False) |
| 111 | self.set_focus(self.index) |
| 112 | self._modified() |
| 113 | |
| 114 | def get_edit_text(self): |
| 115 | return self.focus_obj.get_edit_text() |
| 116 | |
| 117 | def _get(self, pos, editing): |
| 118 | name = self.opts[pos] |
| 119 | opt = self.master.options._options[name] |
| 120 | return OptionItem(self, opt, pos == self.index, self.maxlen, editing) |
| 121 | |
| 122 | def get_focus(self): |
| 123 | return self.focus_obj, self.index |
| 124 | |
| 125 | def set_focus(self, index): |
| 126 | self.editing = False |
| 127 | name = self.opts[index] |
| 128 | opt = self.master.options._options[name] |
| 129 | self.index = index |
| 130 | self.focus_obj = self._get(self.index, self.editing) |
| 131 | self.help_widget.update_help_text(opt.help) |
| 132 | self._modified() |
| 133 | |
| 134 | def get_next(self, pos): |
| 135 | if pos >= len(self.opts) - 1: |
| 136 | return None, None |
| 137 | pos = pos + 1 |
| 138 | return self._get(pos, False), pos |
| 139 | |
| 140 | def get_prev(self, pos): |
no outgoing calls
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