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The basic interface gets two main menu entries that ask for a path. The curses roster gets [I] Import and [E] Export, with a new text input view for the path, prefilled with NAME.pqw on export, and a message view for the outcome and any warnings. The README explains how to move characters to and from the web version. Resolves #21
74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
import curses
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import curses.ascii
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from pqcli.ui.curses.event_handler import EventHandler
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from pqcli.ui.curses.views.base_view import BaseView
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class TextInputView(BaseView):
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"""Ask for one line of text, such as a file name."""
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def __init__(self, screen: curses.window, title: str, text: str) -> None:
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super().__init__(screen)
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self.on_cancel = EventHandler[[]]()
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self.on_confirm = EventHandler[[str]]()
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self._title = title
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self._text = text
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self._win: curses.window | None = None
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self._text_win: curses.window | None = None
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def start(self) -> None:
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self.screen.erase()
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self.screen.noutrefresh()
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scr_height, scr_width = self.screen.getmaxyx()
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h = 6
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w = min(60, scr_width - 4)
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y = (scr_height - h - 2) // 2
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x = (scr_width - w - 2) // 2
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self._win = curses.newwin(h + 2, w + 2, y, x)
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self._text_win = curses.newwin(3, w + 2, y + 2, x - 1)
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self._render()
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def stop(self) -> None:
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self._win = None
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self._text_win = None
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def keypress(self, key: int) -> None:
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if key == curses.ascii.ESC:
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self.on_cancel()
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return
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if key == curses.ascii.NL:
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text = self._text.strip()
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if text:
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self.on_confirm(text)
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else:
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self.on_cancel()
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return
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if key in {curses.KEY_BACKSPACE, curses.ascii.DEL}:
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self._text = self._text[:-1]
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elif key == curses.ascii.ETB: # ^w
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self._text = ""
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elif curses.ascii.isprint(key):
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self._text += chr(key)
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self._render()
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def _render(self) -> None:
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if not self._win or not self._text_win:
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return
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self._win.erase()
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self._win.addstr(0, 0, self._title)
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self._win.addstr(5, 0, "[Enter] Continue")
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self._win.addstr(6, 0, "[Esc ] Cancel")
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self._win.refresh()
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width = self._text_win.getmaxyx()[1] - 2
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self._text_win.erase()
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self._text_win.box()
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# keep the end of long paths in view
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self._text_win.addnstr(1, 1, self._text[-width + 1 :], width)
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self._text_win.refresh()
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