From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 18:29:51 +0200
Subject: Adding upstream version 2.06.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 grub-core/gfxmenu/gfxmenu.c | 150 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 grub-core/gfxmenu/gfxmenu.c

(limited to 'grub-core/gfxmenu/gfxmenu.c')

diff --git a/grub-core/gfxmenu/gfxmenu.c b/grub-core/gfxmenu/gfxmenu.c
new file mode 100644
index 0000000..8a17dda
--- /dev/null
+++ b/grub-core/gfxmenu/gfxmenu.c
@@ -0,0 +1,150 @@
+/* gfxmenu.c - Graphical menu interface controller. */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/video.h>
+#include <grub/gfxterm.h>
+#include <grub/bitmap.h>
+#include <grub/bitmap_scale.h>
+#include <grub/term.h>
+#include <grub/env.h>
+#include <grub/normal.h>
+#include <grub/gfxwidgets.h>
+#include <grub/menu.h>
+#include <grub/menu_viewer.h>
+#include <grub/gfxmenu_model.h>
+#include <grub/gfxmenu_view.h>
+#include <grub/time.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_gfxmenu_view_t cached_view;
+
+static void 
+grub_gfxmenu_viewer_fini (void *data __attribute__ ((unused)))
+{
+}
+
+/* FIXME: Previously 't' changed to text menu is it necessary?  */
+static grub_err_t
+grub_gfxmenu_try (int entry, grub_menu_t menu, int nested)
+{
+  grub_gfxmenu_view_t view = NULL;
+  const char *theme_path;
+  char *full_theme_path = 0;
+  struct grub_menu_viewer *instance;
+  grub_err_t err;
+  struct grub_video_mode_info mode_info;
+
+  theme_path = grub_env_get ("theme");
+  if (! theme_path)
+    return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"),
+		       "theme");
+
+  err = grub_video_get_info (&mode_info);
+  if (err)
+    return err;
+
+  instance = grub_zalloc (sizeof (*instance));
+  if (!instance)
+    return grub_errno;
+
+  if (theme_path[0] != '/' && theme_path[0] != '(')
+    {
+      const char *prefix;
+      prefix = grub_env_get ("prefix");
+      full_theme_path = grub_xasprintf ("%s/themes/%s",
+					prefix,
+					theme_path);
+    }
+
+  if (!cached_view || grub_strcmp (cached_view->theme_path,
+				   full_theme_path ? : theme_path) != 0
+      || cached_view->screen.width != mode_info.width
+      || cached_view->screen.height != mode_info.height)
+    {
+      grub_gfxmenu_view_destroy (cached_view);
+      /* Create the view.  */
+      cached_view = grub_gfxmenu_view_new (full_theme_path ? : theme_path,
+					   mode_info.width,
+					   mode_info.height);
+    }
+  grub_free (full_theme_path);
+
+  if (! cached_view)
+    {
+      grub_free (instance);
+      return grub_errno;
+    }
+
+  view = cached_view;
+
+  view->double_repaint = (mode_info.mode_type
+			  & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED)
+    && !(mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP);
+  view->selected = entry;
+  view->menu = menu;
+  view->nested = nested;
+  view->first_timeout = -1;
+
+  grub_video_set_viewport (0, 0, mode_info.width, mode_info.height);
+  if (view->double_repaint)
+    {
+      grub_video_swap_buffers ();
+      grub_video_set_viewport (0, 0, mode_info.width, mode_info.height);
+    }
+
+  grub_gfxmenu_view_draw (view);
+
+  instance->data = view;
+  instance->set_chosen_entry = grub_gfxmenu_set_chosen_entry;
+  instance->fini = grub_gfxmenu_viewer_fini;
+  instance->print_timeout = grub_gfxmenu_print_timeout;
+  instance->clear_timeout = grub_gfxmenu_clear_timeout;
+
+  grub_menu_register_viewer (instance);
+
+  return GRUB_ERR_NONE;
+}
+
+GRUB_MOD_INIT (gfxmenu)
+{
+  struct grub_term_output *term;
+
+  FOR_ACTIVE_TERM_OUTPUTS(term)
+    if (grub_gfxmenu_try_hook && term->fullscreen)
+      {
+	term->fullscreen ();
+	break;
+      }
+
+  grub_gfxmenu_try_hook = grub_gfxmenu_try;
+}
+
+GRUB_MOD_FINI (gfxmenu)
+{
+  grub_gfxmenu_view_destroy (cached_view);
+  grub_gfxmenu_try_hook = NULL;
+}
-- 
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