From ec5c4a7398fcfcfb5a809292cbe029b1bb69a320 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Tue, 25 Aug 2020 22:11:04 +0200
Subject: Added mouse driver and better event system

---
 apps/wm.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 50 insertions(+), 13 deletions(-)

(limited to 'apps')

diff --git a/apps/wm.c b/apps/wm.c
index c6a1a31..1e1a8bc 100644
--- a/apps/wm.c
+++ b/apps/wm.c
@@ -1,5 +1,7 @@
 // MIT License, Copyright (c) 2020 Marvin Borner
 
+#include <assert.h>
+#include <cpu.h>
 #include <def.h>
 #include <gui.h>
 #include <input.h>
@@ -15,7 +17,10 @@ struct window *direct; // Direct video memory window
 struct window *root; // Root window (wallpaper etc.)
 struct window *exchange; // Exchange buffer
 struct window *focused; // The focused window
-struct list *windows;
+struct list *windows; // List of all windows
+
+int mouse_x = 0;
+int mouse_y = 0;
 
 static struct window *new_window(int x, int y, u16 width, u16 height)
 {
@@ -30,6 +35,18 @@ static struct window *new_window(int x, int y, u16 width, u16 height)
 	return win;
 }
 
+static void redraw_all()
+{
+	if (windows->head && windows->head->data) {
+		struct node *iterator = windows->head;
+		do {
+			struct window *win = iterator->data;
+			gui_win_on_win(exchange, win, win->x, win->y);
+		} while ((iterator = iterator->next) != NULL);
+		memcpy(direct->fb, exchange->fb, exchange->pitch * exchange->height);
+	}
+}
+
 int main(int argc, char **argv)
 {
 	(void)argc;
@@ -56,6 +73,7 @@ int main(int argc, char **argv)
 	/* gui_load_wallpaper(root, "/wall.bmp"); */
 
 	event_register(EVENT_KEYBOARD);
+	event_register(EVENT_MOUSE);
 
 	struct message *msg;
 	while (1) {
@@ -73,22 +91,41 @@ int main(int argc, char **argv)
 			list_add(windows, win);
 			focused = win;
 			break;
-		case EVENT_KEYBOARD:
-			printf("Keypress %d!\n", msg->data);
-			focused->x += 50;
-			if (windows->head && windows->head->data) {
-				struct node *iterator = windows->head;
-				do {
-					struct window *win = iterator->data;
-					gui_win_on_win(exchange, win, win->x, win->y);
-				} while ((iterator = iterator->next) != NULL);
-				memcpy(direct->fb, exchange->fb,
-				       exchange->pitch * exchange->height);
-			}
+		case EVENT_KEYBOARD: {
+			struct event_keyboard *event = msg->data;
+			assert(event->magic == KEYBOARD_MAGIC);
+			printf("Keypress %d %s!\n", event->scancode,
+			       event->press ? "pressed" : "released");
+			/* focused->x += 50; */
+			/* redraw_all(); */
+			break;
+		}
+		case EVENT_MOUSE: {
+			struct event_mouse *event = msg->data;
+			assert(event->magic == MOUSE_MAGIC);
+			mouse_x += event->diff_x;
+			mouse_y -= event->diff_y;
+
+			if (mouse_x < 0)
+				mouse_x = 0;
+			else if (mouse_x > vbe->width - 1)
+				mouse_x = vbe->width - 1;
+
+			if (mouse_y < 0)
+				mouse_y = 0;
+			else if (mouse_y > vbe->height - 1)
+				mouse_y = vbe->height - 1;
+
+			focused->x = mouse_x;
+			focused->y = mouse_y;
+			redraw_all();
+			printf("%d %d\n", mouse_x, mouse_y);
 			break;
+		}
 		default:
 			printf("Unknown WM request %d from pid %d\n", msg->type, msg->src);
 		}
+		yield();
 	};
 
 	return 0;
-- 
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