mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 10:42:45 +00:00
57ff293a51
This patch adds a simple GMessageBox that can run in a nested event loop.
Here's how you use it:
GMessageBox box("Message text here", "Message window title");
int result = box.exec();
The next step is to make the WindowServer respect the modality flag of
these windows and prevent interaction with other windows in the same
process until the modal window has been closed.
129 lines
3.3 KiB
C++
129 lines
3.3 KiB
C++
#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <assert.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include "Terminal.h"
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#include <Kernel/KeyCode.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GWindow.h>
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#include <LibGUI/GMenuBar.h>
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#include <LibGUI/GAction.h>
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#include <LibGUI/GFontDatabase.h>
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static void make_shell(int ptm_fd)
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{
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pid_t pid = fork();
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if (pid == 0) {
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const char* tty_name = ptsname(ptm_fd);
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if (!tty_name) {
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perror("ptsname");
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exit(1);
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}
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close(ptm_fd);
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int pts_fd = open(tty_name, O_RDWR);
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if (pts_fd < 0) {
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perror("open");
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exit(1);
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}
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// NOTE: It's okay if this fails.
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(void) ioctl(0, TIOCNOTTY);
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close(0);
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close(1);
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close(2);
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int rc = dup2(pts_fd, 0);
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if (rc < 0) {
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perror("dup2");
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exit(1);
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}
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rc = dup2(pts_fd, 1);
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if (rc < 0) {
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perror("dup2");
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exit(1);
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}
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rc = dup2(pts_fd, 2);
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if (rc < 0) {
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perror("dup2");
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exit(1);
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}
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rc = close(pts_fd);
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if (rc < 0) {
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perror("close");
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exit(1);
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}
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rc = ioctl(0, TIOCSCTTY);
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if (rc < 0) {
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perror("ioctl(TIOCSCTTY)");
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exit(1);
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}
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char* args[] = { "/bin/sh", nullptr };
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char* envs[] = { "TERM=xterm", nullptr };
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rc = execve("/bin/sh", args, envs);
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if (rc < 0) {
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perror("execve");
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exit(1);
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}
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ASSERT_NOT_REACHED();
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}
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}
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int main(int argc, char** argv)
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{
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GApplication app(argc, argv);
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int ptm_fd = open("/dev/ptmx", O_RDWR);
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if (ptm_fd < 0) {
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perror("open(ptmx)");
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return 1;
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}
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make_shell(ptm_fd);
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auto* window = new GWindow;
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window->set_double_buffering_enabled(false);
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window->set_should_exit_event_loop_on_close(true);
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Terminal terminal(ptm_fd);
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window->set_has_alpha_channel(true);
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window->set_main_widget(&terminal);
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window->move_to(300, 300);
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terminal.apply_size_increments_to_window(*window);
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window->show();
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auto menubar = make<GMenuBar>();
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auto app_menu = make<GMenu>("Terminal");
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app_menu->add_action(GAction::create("Quit", { Mod_Alt, Key_F4 }, [] (const GAction&) {
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dbgprintf("Terminal: Quit menu activated!\n");
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GApplication::the().quit(0);
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return;
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}));
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menubar->add_menu(move(app_menu));
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auto font_menu = make<GMenu>("Font");
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GFontDatabase::the().for_each_fixed_width_font([&] (const String& font_name) {
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font_menu->add_action(GAction::create(font_name, [&terminal] (const GAction& action) {
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terminal.set_font(GFontDatabase::the().get_by_name(action.text()));
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terminal.force_repaint();
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}));
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});
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menubar->add_menu(move(font_menu));
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auto help_menu = make<GMenu>("Help");
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help_menu->add_action(GAction::create("About", [] (const GAction&) {
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dbgprintf("FIXME: Implement Help/About\n");
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}));
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menubar->add_menu(move(help_menu));
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app.set_menubar(move(menubar));
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return app.exec();
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}
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