63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include "../helpline.h"
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#include "../ui.h"
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#include "../libslang.h"
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char ui_helpline__last_msg[1024];
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bool tui_helpline__set;
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static void tui_helpline__pop(void)
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{
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}
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static void tui_helpline__push(const char *msg)
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{
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const size_t sz = sizeof(ui_helpline__current);
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SLsmg_gotorc(SLtt_Screen_Rows - 1, 0);
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SLsmg_set_color(0);
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SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols);
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SLsmg_refresh();
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strlcpy(ui_helpline__current, msg, sz);
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}
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static int tui_helpline__show(const char *format, va_list ap)
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{
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int ret;
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static int backlog;
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mutex_lock(&ui__lock);
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ret = vscnprintf(ui_helpline__last_msg + backlog,
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sizeof(ui_helpline__last_msg) - backlog, format, ap);
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backlog += ret;
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tui_helpline__set = true;
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if (ui_helpline__last_msg[backlog - 1] == '\n') {
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ui_helpline__puts(ui_helpline__last_msg);
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SLsmg_refresh();
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backlog = 0;
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}
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mutex_unlock(&ui__lock);
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return ret;
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}
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struct ui_helpline tui_helpline_fns = {
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.pop = tui_helpline__pop,
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.push = tui_helpline__push,
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.show = tui_helpline__show,
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};
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void ui_helpline__init(void)
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{
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helpline_fns = &tui_helpline_fns;
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ui_helpline__puts(" ");
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}
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