diff options
Diffstat (limited to 'grub-core/gfxmenu/gfxmenu.c')
| -rw-r--r-- | grub-core/gfxmenu/gfxmenu.c | 150 |
1 files changed, 150 insertions, 0 deletions
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; +} |