130 lines · c
1// SPDX-License-Identifier: GPL-2.02#include "ui/browser.h"3#include "ui/keysyms.h"4#include "ui/ui.h"5#include "ui/util.h"6#include "ui/libslang.h"7#include "util/header.h"8#include "util/session.h"9 10#include <sys/ttydefaults.h>11 12static void ui_browser__argv_write(struct ui_browser *browser,13 void *entry, int row)14{15 char **arg = entry;16 char *str = *arg;17 char empty[] = " ";18 bool current_entry = ui_browser__is_current_entry(browser, row);19 unsigned long offset = (unsigned long)browser->priv;20 21 if (offset >= strlen(str))22 str = empty;23 else24 str = str + offset;25 26 ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :27 HE_COLORSET_NORMAL);28 29 ui_browser__write_nstring(browser, str, browser->width);30}31 32static int list_menu__run(struct ui_browser *menu)33{34 int key;35 unsigned long offset;36 static const char help[] =37 "h/?/F1 Show this window\n"38 "UP/DOWN/PGUP\n"39 "PGDN/SPACE\n"40 "LEFT/RIGHT Navigate\n"41 "q/ESC/CTRL+C Exit browser";42 43 if (ui_browser__show(menu, "Header information", "Press 'q' to exit") < 0)44 return -1;45 46 while (1) {47 key = ui_browser__run(menu, 0);48 49 switch (key) {50 case K_RIGHT:51 offset = (unsigned long)menu->priv;52 offset += 10;53 menu->priv = (void *)offset;54 continue;55 case K_LEFT:56 offset = (unsigned long)menu->priv;57 if (offset >= 10)58 offset -= 10;59 menu->priv = (void *)offset;60 continue;61 case K_F1:62 case 'h':63 case '?':64 ui_browser__help_window(menu, help);65 continue;66 case K_ESC:67 case 'q':68 case CTRL('c'):69 key = -1;70 break;71 default:72 continue;73 }74 75 break;76 }77 78 ui_browser__hide(menu);79 return key;80}81 82static int ui__list_menu(int argc, char * const argv[])83{84 struct ui_browser menu = {85 .entries = (void *)argv,86 .refresh = ui_browser__argv_refresh,87 .seek = ui_browser__argv_seek,88 .write = ui_browser__argv_write,89 .nr_entries = argc,90 };91 92 return list_menu__run(&menu);93}94 95int tui__header_window(struct perf_env *env)96{97 int i, argc = 0;98 char **argv;99 struct perf_session *session;100 char *ptr, *pos;101 size_t size;102 FILE *fp = open_memstream(&ptr, &size);103 104 session = container_of(env, struct perf_session, header.env);105 perf_header__fprintf_info(session, fp, true);106 fclose(fp);107 108 for (pos = ptr, argc = 0; (pos = strchr(pos, '\n')) != NULL; pos++)109 argc++;110 111 argv = calloc(argc + 1, sizeof(*argv));112 if (argv == NULL)113 goto out;114 115 argv[0] = pos = ptr;116 for (i = 1; (pos = strchr(pos, '\n')) != NULL; i++) {117 *pos++ = '\0';118 argv[i] = pos;119 }120 121 BUG_ON(i != argc + 1);122 123 ui__list_menu(argc, argv);124 125out:126 free(argv);127 free(ptr);128 return 0;129}130