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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129// SPDX-License-Identifier: GPL-2.0#include "ui/browser.h"#include "ui/keysyms.h"#include "ui/ui.h"#include "ui/util.h"#include "ui/libslang.h"#include "util/header.h"#include "util/session.h"
#include <sys/ttydefaults.h>
static void ui_browser__argv_write(struct ui_browser *browser, void *entry, int row){ char **arg = entry; char *str = *arg; char empty[] = " "; bool current_entry = ui_browser__is_current_entry(browser, row); unsigned long offset = (unsigned long)browser->priv;
if (offset >= strlen(str)) str = empty; else str = str + offset;
ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED : HE_COLORSET_NORMAL);
ui_browser__write_nstring(browser, str, browser->width);}
static int list_menu__run(struct ui_browser *menu){ int key; unsigned long offset; static const char help[] = "h/?/F1 Show this window\n" "UP/DOWN/PGUP\n" "PGDN/SPACE\n" "LEFT/RIGHT Navigate\n" "q/ESC/CTRL+C Exit browser";
if (ui_browser__show(menu, "Header information", "Press 'q' to exit") < 0) return -1;
while (1) { key = ui_browser__run(menu, 0);
switch (key) { case K_RIGHT: offset = (unsigned long)menu->priv; offset += 10; menu->priv = (void *)offset; continue; case K_LEFT: offset = (unsigned long)menu->priv; if (offset >= 10) offset -= 10; menu->priv = (void *)offset; continue; case K_F1: case 'h': case '?': ui_browser__help_window(menu, help); continue; case K_ESC: case 'q': case CTRL('c'): key = -1; break; default: ui_browser__warn_unhandled_hotkey(menu, key, 0, ", use 'h'/'?'/F1 to see actions"); continue; }
break; }
ui_browser__hide(menu); return key;}
static int ui__list_menu(int argc, char * const argv[]){ struct ui_browser menu = { .entries = (void *)argv, .refresh = ui_browser__argv_refresh, .seek = ui_browser__argv_seek, .write = ui_browser__argv_write, .nr_entries = argc, };
return list_menu__run(&menu);}
int tui__header_window(struct perf_session *session){ int i, argc = 0; char **argv; char *ptr, *pos; size_t size; FILE *fp = open_memstream(&ptr, &size);
perf_header__fprintf_info(session, fp, true); fclose(fp);
for (pos = ptr, argc = 0; (pos = strchr(pos, '\n')) != NULL; pos++) argc++;
argv = calloc(argc + 1, sizeof(*argv)); if (argv == NULL) goto out;
argv[0] = pos = ptr; for (i = 1; (pos = strchr(pos, '\n')) != NULL; i++) { *pos++ = '\0'; argv[i] = pos; }
BUG_ON(i != argc + 1);
ui__list_menu(argc, argv);
out: free(argv); free(ptr); return 0;}