feat: 图形桌面 + 独立工具应用 + Sealed Arc UI 设计系统 | desktop.elf窗口管理器/6个工具应用(bash/editor/fileman/browser/curl/ping)/desktop_app.h公共头文件/Sealed Arc设计系统/DRR完整实现/Process增强/DSK启动改为加载desktop.elf/Shell重构/开发文档
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/* Deshab curl — 终端风格 HTTP 客户端 stub
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* 命令行输入 URL，显示 HTTP GET 请求结果。
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* 当前为 stub，提示需要 TCP/IP 栈支持。
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* Esc 键退出返回 DSK。
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*/
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#include "../../firstInit/ascii_bitmaps.c"
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#include "../desktop_app.h"
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/* ---- 终端参数 ---- */
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#define TERM_COLS 120
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#define TERM_ROWS 40
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#define TERM_MAX_CHARS (TERM_COLS * TERM_ROWS)
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#define CHAR_STEP 12
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#define CHAR_H 18
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#define PROMPT_STR "curl> "
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static da_app_context g_ac;
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/* 终端缓冲区 */
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static u8 term_ch[TERM_MAX_CHARS];
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static u32 term_fg[TERM_MAX_CHARS];
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static int term_w = TERM_COLS;
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static int term_h = TERM_ROWS;
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static int cur_col = 0;
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static int cur_row = 0;
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/* 输入缓冲 */
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static char input_buf[256];
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static int input_len = 0;
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static int input_cursor = 0;
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/* 命令历史 */
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#define HIST_SIZE 16
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static char history[HIST_SIZE][256];
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static int hist_count = 0;
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static int hist_idx = 0;
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/* 坐标 */
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static int term_x, term_y;
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static void term_init_layout(void) {
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term_x = 8;
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term_y = DA_TITLEBAR_H + 4;
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int avail_w = (int)g_ac.fb_w - 16;
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int avail_h = (int)g_ac.fb_h - term_y - DA_STATUSBAR_H - 8;
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term_w = avail_w / CHAR_STEP;
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term_h = avail_h / CHAR_H;
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if (term_w < 10) term_w = 10;
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if (term_h < 5) term_h = 5;
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if (term_w > TERM_COLS) term_w = TERM_COLS;
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if (term_h > TERM_ROWS) term_h = TERM_ROWS;
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}
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static void term_clear(void) {
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for (int i = 0; i < TERM_MAX_CHARS; i++) {
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term_ch[i] = ' ';
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term_fg[i] = DA_TEXT_PRIMARY;
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}
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cur_col = 0; cur_row = 0;
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}
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static void term_scroll(void) {
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for (int r = 1; r < term_h; r++) {
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for (int c = 0; c < term_w; c++) {
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term_ch[(r-1)*TERM_COLS+c] = term_ch[r*TERM_COLS+c];
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term_fg[(r-1)*TERM_COLS+c] = term_fg[r*TERM_COLS+c];
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}
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}
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for (int c = 0; c < term_w; c++) {
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term_ch[(term_h-1)*TERM_COLS+c] = ' ';
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term_fg[(term_h-1)*TERM_COLS+c] = DA_TEXT_PRIMARY;
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}
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cur_row = term_h - 1; cur_col = 0;
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}
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static void term_newline(void) {
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cur_col = 0; cur_row++;
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if (cur_row >= term_h) term_scroll();
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}
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static void term_putc_color(char c, u32 color) {
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if (c == '\n') { term_newline(); return; }
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if (c == '\r') { cur_col = 0; return; }
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if (c == '\t') { int sp = 4 - (cur_col % 4); for (int i = 0; i < sp; i++) term_putc_color(' ', color); return; }
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if (c < ' ' || c > '~') c = '?';
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if (cur_col >= term_w) term_newline();
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int idx = cur_row * TERM_COLS + cur_col;
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term_ch[idx] = (u8)c; term_fg[idx] = color;
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cur_col++;
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}
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static void term_putc(char c) { term_putc_color(c, DA_TEXT_PRIMARY); }
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static void term_puts_color(const char *s, u32 color) { while (*s) term_putc_color(*s++, color); }
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static void term_puts(const char *s) { term_puts_color(s, DA_TEXT_PRIMARY); }
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/* ---- 绘制 ---- */
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static void redraw_all(void) {
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da_fill_bg(&g_ac, DA_BG_PRIMARY);
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da_draw_titlebar(&g_ac, "curl", (i64)g_ac.fb_w);
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/* 终端字符 */
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for (int r = 0; r < term_h; r++) {
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for (int c = 0; c < term_w; c++) {
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int idx = r * TERM_COLS + c;
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if (term_ch[idx] == ' ') continue;
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da_draw_char(&g_ac, term_ch[idx],
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term_x + c * CHAR_STEP, term_y + r * CHAR_H,
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term_fg[idx], DA_BG_PRIMARY);
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}
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}
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/* 光标 */
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if (cur_col < term_w && cur_row < term_h) {
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da_fill_rect(&g_ac, term_x + cur_col * CHAR_STEP,
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term_y + cur_row * CHAR_H + CHAR_H - 3, 11, 2, DA_ACCENT);
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}
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/* 状态栏 */
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char status[64];
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int p = 0;
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const char *s1 = "HTTP client | Esc 退出 ";
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while (*s1) status[p++] = *s1++;
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u8 hh, mm; da_rtc_time(&hh, &mm);
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status[p++] = '0' + hh/10; status[p++] = '0' + hh%10;
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status[p++] = ':'; status[p++] = '0' + mm/10; status[p++] = '0' + mm%10;
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status[p] = 0;
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da_draw_statusbar(&g_ac, status, (i64)g_ac.fb_w, (i64)g_ac.fb_h);
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}
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/* ---- URL 请求模拟 ---- */
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static void do_http_get(const char *url) {
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term_puts_color("GET ", DA_PROMPT_COLOR);
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term_puts_color(url, DA_ACCENT_LIGHT);
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term_putc('\n');
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term_puts_color(" -> 解析主机...\n", DA_TEXT_DIM);
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term_puts_color(" -> 建立 TCP 连接...\n", DA_TEXT_DIM);
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/* stub: 检查 kernel_api 是否有 net 接口 */
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if (!g_ac.kernel_api) {
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term_puts_color(" [错误] 无内核 API\n", DA_ERROR);
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return;
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}
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/* 尝试读取 net API — 当前为 stub */
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u64 net_api = *(u64 *)((u64)g_ac.kernel_api + 0xC0);
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if (!net_api) {
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term_puts_color(" [错误] 需要 TCP/IP 栈支持\n", DA_ERROR);
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term_puts_color(" 当前内核未实现网络协议栈。\n", DA_WARNING);
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term_puts_color(" 请等待后续版本更新。\n", DA_TEXT_DIM);
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return;
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}
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/* 如果有 net API，此处应实现真正的 HTTP GET */
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term_puts_color(" [stub] 网络功能尚未实现\n", DA_WARNING);
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}
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/* ---- 内置命令 ---- */
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static int str_eq(const char *a, const char *b) {
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while (*a && *b) { if (*a != *b) return 0; a++; b++; }
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return *a == *b;
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}
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static void cmd_help(void) {
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term_puts_color("curl — 命令行 HTTP 客户端\n", DA_PROMPT_COLOR);
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term_puts(" <url> 发送 HTTP GET 请求\n");
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term_puts(" help 显示此帮助\n");
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term_puts(" clear 清屏\n");
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term_puts(" version 显示版本\n");
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term_puts(" Esc 退出\n");
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}
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static void cmd_clear(void) { term_clear(); }
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static void cmd_version(void) {
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term_puts_color("Deshab curl v0.1 (stub)\n", DA_SUCCESS);
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term_puts_color(" HTTP 客户端功能需要 TCP/IP 栈支持\n", DA_TEXT_DIM);
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}
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static void execute_command(const char *cmd) {
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while (*cmd == ' ') cmd++;
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if (*cmd == 0) return;
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if (str_eq(cmd, "help") || str_eq(cmd, "?")) { cmd_help(); return; }
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if (str_eq(cmd, "clear") || str_eq(cmd, "cls")) { cmd_clear(); return; }
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if (str_eq(cmd, "version") || str_eq(cmd, "ver")) { cmd_version(); return; }
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/* 非内置命令视为 URL */
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if (cmd[0] == 'h' && cmd[1] == 't' && cmd[2] == 't' && cmd[3] == 'p') {
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do_http_get(cmd);
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} else {
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term_puts_color("无效 URL: ", DA_ERROR);
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term_puts_color(cmd, DA_ERROR);
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term_putc('\n');
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term_puts_color("请输入完整 URL (http://...)\n", DA_TEXT_DIM);
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}
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}
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static void add_history(const char *cmd) {
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if (hist_count < HIST_SIZE) {
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int i;
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for (i = 0; cmd[i] && i < 255; i++) history[hist_count][i] = cmd[i];
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history[hist_count][i] = 0;
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hist_count++;
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}
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hist_idx = hist_count;
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}
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/* ---- 输入行重绘 ---- */
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static void redraw_input_line(void) {
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int plen = 0;
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while (PROMPT_STR[plen]) plen++;
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i64 y = term_y + (i64)cur_row * CHAR_H;
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da_fill_rect(&g_ac, term_x, y, (i64)term_w * CHAR_STEP, CHAR_H, DA_BG_PRIMARY);
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for (int i = 0; i < plen; i++)
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da_draw_char(&g_ac, PROMPT_STR[i], term_x + i * CHAR_STEP, y, DA_PROMPT_COLOR, DA_BG_PRIMARY);
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for (int i = 0; i < input_len; i++)
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da_draw_char(&g_ac, input_buf[i], term_x + (plen + i) * CHAR_STEP, y, DA_TEXT_PRIMARY, DA_BG_PRIMARY);
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cur_col = plen + input_cursor;
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da_fill_rect(&g_ac, term_x + cur_col * CHAR_STEP, y + CHAR_H - 3, 11, 2, DA_ACCENT);
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}
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/* ---- 主入口 ---- */
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__attribute__((visibility("default")))
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void dsk_entry(const da_boot_context *ctx) {
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__asm__ volatile("cli");
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da_slog("curl", "boot");
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if (!ctx || ctx->magic != DA_BOOT_MAGIC) {
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da_slog("curl", "bad context");
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for(;;) __asm__("hlt");
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}
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da_init(&g_ac, ctx);
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term_init_layout();
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term_clear();
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/* 启动 banner */
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term_puts_color("=== Deshab curl v0.1 (stub) ===\n", DA_ACCENT);
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term_puts_color("HTTP 命令行客户端\n", DA_SUCCESS);
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term_puts_color("输入 URL 发送 GET 请求 | 输入 'help' 查看帮助 | Esc 退出\n", DA_TEXT_DIM);
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term_puts_color("注意: 当前需要 TCP/IP 栈支持\n", DA_WARNING);
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term_putc('\n');
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redraw_all();
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int shift = 0, e0 = 0;
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for (;;) {
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term_puts_color(PROMPT_STR, DA_PROMPT_COLOR);
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input_len = 0; input_cursor = 0; input_buf[0] = 0;
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int plen = 0; while (PROMPT_STR[plen]) plen++;
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cur_col = plen;
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redraw_all();
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int cmd_done = 0;
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while (!cmd_done) {
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u8 st = inb(0x64);
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if (!(st & 1)) { __asm__("pause"); continue; }
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u8 data = inb(0x60);
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if (st & 0x20) continue;
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u8 sc = data;
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if (sc == 0xE0) { e0 = 1; continue; }
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if (sc == 0x2A || sc == 0x36) { shift = 1; continue; }
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if (sc == 0xAA || sc == 0xB6) { shift = 0; continue; }
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if (sc & 0x80) { e0 = 0; continue; }
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/* Esc 退出 */
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if (sc == 0x01 && !e0) {
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da_slog("curl", "exit");
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return;
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}
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if (e0) {
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if (sc == 0x4B) { if (input_cursor > 0) input_cursor--; }
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else if (sc == 0x4D) { if (input_cursor < input_len) input_cursor++; }
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else if (sc == 0x47) { input_cursor = 0; }
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else if (sc == 0x4F) { input_cursor = input_len; }
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else if (sc == 0x48) {
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if (hist_idx > 0) {
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hist_idx--;
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int i; for (i = 0; history[hist_idx][i] && i < 255; i++) input_buf[i] = history[hist_idx][i];
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input_len = i; input_cursor = i; input_buf[i] = 0;
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}
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}
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else if (sc == 0x50) {
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if (hist_idx < hist_count - 1) {
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hist_idx++;
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int i; for (i = 0; history[hist_idx][i] && i < 255; i++) input_buf[i] = history[hist_idx][i];
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input_len = i; input_cursor = i; input_buf[i] = 0;
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} else if (hist_idx < hist_count) {
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hist_idx = hist_count;
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input_len = 0; input_cursor = 0; input_buf[0] = 0;
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}
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}
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e0 = 0;
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redraw_input_line();
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continue;
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}
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if (sc == 0x1C) { /* Enter */
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input_buf[input_len] = 0;
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term_putc('\n');
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if (input_len > 0) add_history(input_buf);
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execute_command(input_buf);
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cmd_done = 1;
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continue;
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}
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if (sc == 0x0E) { /* Backspace */
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if (input_cursor > 0) {
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for (int i = input_cursor - 1; i < input_len - 1; i++)
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input_buf[i] = input_buf[i+1];
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input_len--; input_cursor--;
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input_buf[input_len] = 0;
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}
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redraw_input_line();
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continue;
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}
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char c = da_scan_to_ascii(sc, shift);
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if (c && c >= 32 && c <= 126 && input_len < 255) {
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for (int i = input_len; i > input_cursor; i--)
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input_buf[i] = input_buf[i-1];
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input_buf[input_cursor++] = c;
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input_len++;
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redraw_input_line();
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}
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}
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redraw_all();
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}
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}
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Reference in New Issue
Block a user