1 files changed, 74 insertions, 0 deletions
diff --git a/apps/files.c b/apps/files.c
new file mode 100644
index 0000000..2176a99
--- /dev/null
+++ b/apps/files.c
@@ -0,0 +1,74 @@
+// MIT License, Copyright (c) 2020 Marvin Borner
+// TODO: Fix green memory artifacts
+
+#include <gui.h>
+#include <mem.h>
+#include <print.h>
+#include <str.h>
+#include <sys.h>
+
+static struct element *root = NULL;
+
+struct dirent {
+	u32 inode_num;
+	u16 total_len;
+	u8 name_len;
+	u8 type_indicator;
+	char name[];
+};
+
+void render_list(char *path);
+void on_click(struct event_mouse *event, struct element *elem)
+{
+	(void)event;
+	char *value = ((struct element_label *)elem->data)->text;
+	u8 l = strlen(elem->attributes) + strlen(value) + 2;
+	char *full = malloc(l);
+	strcat(full, elem->attributes);
+	full[strlen(elem->attributes)] = '/';
+	strcat(full, value);
+	render_list(full);
+}
+
+// TODO: Dir iterator as kernel syscall?
+void render_list(char *path)
+{
+	static struct element *list = NULL;
+	if (list)
+		gui_remove_element(list);
+	list = gui_add_container(root, 0, 0, 600, 400, COLOR_BLACK);
+
+	struct dirent *d = read(path);
+
+	int sum = 0;
+	int calc = 0;
+	int cnt = 0;
+	do {
+		calc = (sizeof(struct dirent) + d->name_len + 4) & ~0x3;
+		sum += d->total_len;
+		d->name[d->name_len] = '\0';
+		struct element *label = gui_add_label(list, 5, cnt * (gfx_font_height(FONT_16) + 5),
+						      FONT_16, d->name, COLOR_BLACK, COLOR_WHITE);
+		label->attributes = path;
+
+		if (d->type_indicator == 2) // Dir
+			label->event.on_click = on_click;
+
+		if (d->total_len != calc && sum == 1024)
+			d->total_len = calc;
+		d = (struct dirent *)((u32)d + d->total_len);
+		cnt++;
+	} while (sum < 1024); // TODO: Remove magic constants
+}
+
+int main()
+{
+	root = gui_init("Files", 600, 400, COLOR_BLACK);
+
+	render_list("/.");
+	gfx_redraw_focused(); // TODO: Remove
+
+	gui_event_loop(root);
+
+	return 0;
+}