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https://github.com/morgan9e/systemd
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8191bbd23c
We'll soon have three different kind of interactive "wizard"-like console UIs: systemd-firstboot, homectl firstboot and soon systemd-sysinstall. Let's give them a limited, recognizable visual identity, to distinguish them from the usual console output: let's add a bit of "chrome" to the top and bottom of the screen, that we show during ther wizards, but hide again afterwards. This makes use of the DECSTBM sequence that reduces the scrolling area by chopping off blocks from the top or bottom of the screen. The sequence is quite standard, given it has been part of VT100 already. xterm, vte, Linux console all support it just fine.
32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdbool.h>
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#include "forward.h"
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typedef enum PromptFlags {
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PROMPT_MAY_SKIP = 1 << 0, /* Question may be skipped */
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PROMPT_SHOW_MENU = 1 << 1, /* Show menu list on "list" */
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PROMPT_SHOW_MENU_NOW = 1 << 2, /* Show menu list right away, rather than only on request */
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PROMPT_HIDE_MENU_HINT = 1 << 3, /* Don't show hint regarding "list" */
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PROMPT_HIDE_SKIP_HINT = 1 << 4, /* Don't show hint regarding skipping */
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PROMPT_SILENT_VALIDATE = 1 << 5, /* The validation log message logs on its own, don't log again */
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} PromptFlags;
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int prompt_loop(const char *text,
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Glyph emoji,
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char **menu,
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char **accepted,
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unsigned ellipsize_percentage,
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size_t n_columns,
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size_t column_width,
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int (*is_valid)(const char *name, void *userdata),
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int (*refresh)(char ***ret_menu, char ***ret_accepted, void *userdata),
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void *userdata,
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PromptFlags flags,
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char **ret);
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int chrome_show(const char *top, const char *bottom);
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void chrome_hide(void);
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