toastd: initial prototype

2021-07-29 13:04:59 +09:00 · 2021-07-29 13:04:59 +09:00 · 49e9e4a556
parent 8f05cf8554
commit 49e9e4a556
1 changed files with 108 additions and 0 deletions
--- a/apps/toastd.c
+++ b/apps/toastd.c
@ -0,0 +1,108 @@
+/**
+ * @brief Toast notification daemon.
+ * @file  apps/toastd.c
+ *
+ * Provides an endpoint for applications to post notifications
+ * which are displayed in pop-up "toasts" in the upper-right
+ * corner of the screen without stealing focus.
+ *
+ * @copyright 2021 K. Lange
+ * This file is part of ToaruOS and is released under the terms
+ * of the NCSA / University of Illinois License - see LICENSE.md
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <sched.h>
+#include <sys/fswait.h>
+#include <toaru/pex.h>
+#include <toaru/yutani.h>
+#include <toaru/markup_text.h>
+#include <toaru/graphics.h>
+
+static yutani_t * yctx;
+static FILE * pex_endpoint = NULL;
+static sprite_t background_sprite;
+
+#define PAD_RIGHT 10
+#define PAD_TOP   48
+
+int main(int argc, char * argv[]) {
+	/* Make sure we were actually expecting to be run... */
+	if (argc < 2 || strcmp(argv[1],"--really")) {
+		fprintf(stderr,
+				"%s: Toast notification daemon\n"
+				"\n"
+				" Displays popup notifications from other\n"
+				" applications in the corner of the screen.\n"
+				" You probably don't want to run this directly - it is\n"
+				" started automatically by the session manager.\n", argv[0]);
+		return 1;
+	}
+	/* Daemonize... */
+	if (!fork()) {
+		/* Connect to display server... */
+		yctx = yutani_init();
+		if (!yctx) {
+			fprintf(stderr, "%s: Failed to connect to compositor.\n", argv[0]);
+		}
+		/* Open pex endpoint to receive notifications... */
+		pex_endpoint = pex_bind("toast");
+		if (!pex_endpoint) {
+			fprintf(stderr, "%s: Failed to establish socket.\n", argv[0]);
+		}
+		/* Set up our text rendering and sprite contexts... */
+		markup_text_init();
+		load_sprite(&background_sprite, "/usr/share/ttk/toast/default.png");
+		/* Make a test window? */
+		yutani_window_t * wina = yutani_window_create_flags(yctx, background_sprite.width, background_sprite.height, YUTANI_WINDOW_FLAG_NO_STEAL_FOCUS | YUTANI_WINDOW_FLAG_ALT_ANIMATION);
+		yutani_window_move(yctx, wina, yctx->display_width - background_sprite.width - PAD_RIGHT, PAD_TOP); /* We need to be able to query the panel location... */
+		gfx_context_t * ctx = init_graphics_yutani_double_buffer(wina);
+		draw_fill(ctx, rgba(0,0,0,0));
+		draw_sprite(ctx, &background_sprite, 0, 0);
+		/* Wait for messages from pex, or from compositor... */
+		markup_draw_string(ctx,10,26,"<b><h1>Welcome!</h1></b><br>This is a sample <i>toast</i> notification.",rgb(255,255,255));
+		flip(ctx);
+		yutani_flip(yctx, wina);
+
+		int should_exit = 0;
+		while (!should_exit) {
+			int fds[1] = {fileno(yctx->sock)};
+			int index = fswait2(1,fds,20);
+			if (index == 0) {
+				yutani_msg_t * m = yutani_poll(yctx);
+				while (m) {
+					switch (m->type) {
+						case YUTANI_MSG_KEY_EVENT:
+							{
+								struct yutani_msg_key_event * ke = (void*)m->data;
+								if (ke->event.action == KEY_ACTION_DOWN && ke->event.keycode == 'q') {
+									should_exit = 1;
+									sched_yield();
+								}
+							}
+							break;
+						case YUTANI_MSG_WINDOW_MOUSE_EVENT:
+							{
+								struct yutani_msg_window_mouse_event * me = (void*)m->data;
+								if (me->command == YUTANI_MOUSE_EVENT_DOWN && me->buttons & YUTANI_MOUSE_BUTTON_LEFT) {
+									yutani_window_drag_start(yctx, wina);
+								}
+							}
+							break;
+						case YUTANI_MSG_WINDOW_CLOSE:
+						case YUTANI_MSG_SESSION_END:
+							should_exit = 1;
+							break;
+						default:
+							break;
+					}
+					free(m);
+					m = yutani_poll_async(yctx);
+				}
+			}
+		}
+
+		yutani_close(yctx, wina);
+	}
+	return 0;
+}