win+space, mkpopup

fs-skel/sys/startup.rc

@@ -1 +1 @@
-bin/terminal bin/highway
+bin/mkpopup Press Win+Space to open a terminal.\nPress Win+Arrow Key to move a window around.\nPress Win+Page Up/Down to shuffle windows.\nPress Escape to close this window.

fs-skel/sys/winspace.rc

@@ -0,0 +1 @@
+bin/terminal bin/highway

makefile

@@ -36,7 +36,7 @@ out/fs/man/%.man: src/man/%.pre
 	python3 tools/man-gen.py $< $@
 
 out/fs: out/fs/bin/init     out/fs/bin/highway out/fs/bin/meminfo \
-        out/fs/bin/terminal out/fs/bin/hello
+        out/fs/bin/terminal out/fs/bin/hello   out/fs/bin/mkpopup
 	touch out/fs
 	cp -r fs-skel/* out/fs/
 
@@ -113,3 +113,7 @@ obj/terminal.elf: obj/terminal/main.o obj/libfont.so obj/knob.so \
 
 obj/hello.elf: obj/hello/hello.ao
 	ld -T src/user/runtimes/asm/elf.ld $^ -o $@
+
+obj/mkpopup.elf: obj/mkpopup/main.o obj/popups.so obj/libfont.so \
+                 obj/knob.so        obj/c.rto
+	ld -T src/user/runtimes/c/elf.ld $^ -o $@

src/kernel/main.c

@@ -40,7 +40,7 @@ void main() {
   init_kbd();
   init_idt();
 
-  paint_bg();
+  init_win();
 
   logf(LOG_INFO, "Kernel initialization done.");
   logf(LOG_INFO, "Available kernel memory: %dk", kernel_pages_left * 4);

src/kernel/window.c

@@ -1,9 +1,11 @@
 #include "paging.h"
 #include "window.h"
 #include "drive.h"
+#include "panic.h"
 #include "task.h"
 #include "util.h"
 #include "pmap.h"
+#include "elf.h"
 #include "log.h"
 
 #define MAX_WINDOWS 64
@@ -91,7 +93,7 @@ static void paint_and_above(const struct window *w) {
   switch_to_task_cr3();
 }
 
-void paint_bg() {
+static void paint_bg() {
   for (uint16_t y = 0; y < SCREEN_HEIGHT; ++y)
     for (uint16_t x = 0; x < SCREEN_WIDTH; ++x)
       VGA_MEMORY[y * SCREEN_WIDTH + x] = BACKGROUND(x, y);
@@ -213,6 +215,8 @@ static void send_action(struct window *w, struct window_action packet) {
   }
 }
 
+#define RUN_COMMAND_FILE "sys/winspace.rc"
+
 enum wm_action {
   WM_SHUFFLE_UP,
   WM_SHUFFLE_DOWN,
@@ -220,6 +224,7 @@ enum wm_action {
   WM_MOVE_RIGHT,
   WM_MOVE_UP,
   WM_MOVE_DOWN,
+  WM_RUN_COMMAND,
 
   N_WM_ACTIONS
 };
@@ -230,7 +235,8 @@ static struct key_packet keybinds[] = {
   {.key_id = KEY_LEFT_ARROW,  .modifiers = WINS},
   {.key_id = KEY_RIGHT_ARROW, .modifiers = WINS},
   {.key_id = KEY_UP_ARROW,    .modifiers = WINS},
-  {.key_id = KEY_DOWN_ARROW,  .modifiers = WINS}
+  {.key_id = KEY_DOWN_ARROW,  .modifiers = WINS},
+  {.key_id = KEY_SPACE,       .modifiers = WINS}
 };
 
 static inline bool fuzzy_key_match(struct key_packet t, struct key_packet a) {
@@ -249,7 +255,33 @@ static inline bool fuzzy_key_match(struct key_packet t, struct key_packet a) {
   return a.modifiers == t.modifiers;
 }
 
-#include "log.h"
+static char *run_command;
+static char *run_command_pass = "";
+
+void init_win() {
+  paint_bg();
+
+  const file_id_t fid = drives->get_file(drives, RUN_COMMAND_FILE);
+  if (!fid)
+    PANIC("Couldn't open " RUN_COMMAND_FILE ".");
+
+  const uint32_t len = drives->get_file_length(drives, fid);
+  run_command = allocate_kernel_pages(len / 4096 + 1);
+  if (!run_command)
+    PANIC("Couldn't make buffer for " RUN_COMMAND_FILE " contents.");
+
+  fmcpy(run_command, drives, fid, 0, len);
+  run_command[len] = '\0';
+
+  drives->free_file(drives, fid);
+
+  for (char *c = run_command; *c; ++c)
+    if (*c == ' ') {
+      *c = '\0';
+      run_command_pass = c + 1;
+      break;
+    }
+}
 
 void on_action(struct window_action packet) {
 //logf(LOG_INFO, "Window action, top window = 0x%d from %s.", top_window, top_window->from_task->name);
@@ -305,6 +337,10 @@ void on_action(struct window_action packet) {
           case WM_MOVE_DOWN:
             ++top_window->ypos;
             paint_all();
+            break;
+          case WM_RUN_COMMAND:
+            if (!try_elf_run(drives, run_command, run_command_pass, 0))
+              PANIC("Couldn't run program listed in " RUN_COMMAND_FILE ".");
           }
           switch_to_task_cr3();
           return;

src/kernel/window.h

@@ -9,7 +9,7 @@
 
 struct window;
 
-void paint_bg();
+void init_win();
 
 struct window *new_window(uint16_t width, uint16_t height, const void *pixel_buffer);
 void del_window(struct window *w);

src/user/meminfo/meminfo.c

@@ -15,7 +15,7 @@ redo:
     "kernel memory free: %uk\n"
     "userspace memory free: %uk / %uk\n"
     "Escape to quit, F5 to refresh.",
-    0x10, 0x08,
+    0x10, 0x07,
     _kernel_dynamic_area_left() * 4,
     _total_userspace_left() * 4,
     _total_userspace_size() * 4

src/user/mkpopup/main.c

@@ -0,0 +1,36 @@
+#include <popups/info.h>
+
+#include <knob/heap.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+
+void main(const char *text) {
+  uint32_t required_new_length = 0;
+  bool needs_new = false;
+  for (const char *c = text; c[0]; ++c) {
+    ++required_new_length;
+    if ((c[0] == '\\') && (c[1] == 'n')) {
+      ++c;
+      needs_new = true;
+    }
+  }
+
+  if (needs_new) {
+    char *new_text = get_block(required_new_length);
+    const char *ci;
+    char *co;
+    for (ci = text, co = new_text; *ci; ++ci, ++co)
+      if ((ci[0] == '\\') && (ci[1] == 'n')) {
+        *co = '\n';
+        ++ci;
+      }
+      else
+        *co = *ci;
+    text = new_text;
+  }
+
+  struct popup p;
+  info_popup(&p, text, 0x10, 0x07);
+  make_modal(&p);
+}

src/user/popups/info.c

@@ -11,9 +11,6 @@
 #define PADDING 6
 #define FONT "berry"
 
-#define BG_COLOR 0x07
-#define FG_COlOR 0x10
-
 static const struct font_info *info_font = 0;
 
 static const struct key_packet info_quits[] = {
@@ -48,7 +45,7 @@ void info_popup(struct popup *into, const char *msg, uint8_t fg, uint8_t bg) {
 
   for (uint32_t y = 0; y < height; ++y)
     for (uint32_t x = 0; x < pitch; ++x)
-      pixbuf[y * pitch + x] = BG_COLOR;
+      pixbuf[y * pitch + x] = bg;
 
   uint32_t my = 0;
   uint32_t mx = 0;
@@ -59,7 +56,7 @@ void info_popup(struct popup *into, const char *msg, uint8_t fg, uint8_t bg) {
       mx = 0;
     }
     else
-      put_char(info_font, *msg, pixbuf + (my * info_font->space_height + PADDING) * pitch + mx++ * info_font->space_width + PADDING, pitch, BG_COLOR, FG_COlOR);
+      put_char(info_font, *msg, pixbuf + (my * info_font->space_height + PADDING) * pitch + mx++ * info_font->space_width + PADDING, pitch, bg, fg);
   }
 
   into->pixbuf = pixbuf;