gui.c

   1 #include <stdbool.h>
   2 #include <Eina.h>
   3 #include <Evas.h>
   4 #include <Ecore.h>
   5 #include <Ecore_Evas.h>
   6 #include "config.h"
   7 #include "kexec.h"
   8 #include "util.h"
   9
  10 /* XXX: replace hardcoded values with runtime information */
  11 #define SCREEN_WIDTH 480
  12 #define SCREEN_HEIGHT 640
  13
  14 /* drawing related stuff */
  15 static Ecore_Evas *ee;
  16 static Evas *evas;
  17
  18 static void poweroff(void *data, Evas *evas, Evas_Object *obj, void *event);
  19 static void bootitem_clicked(void *data, Evas *evas, Evas_Object *item, void *event);
  20
  21 typedef struct {
  22         const char *text;
  23         const char *logo;
  24         void(*callback)(void*, Evas*, Evas_Object*, void *);
  25 } MenuItem;
  26
  27 MenuItem menu[] = {
  28         { "Power Off", POWEROFF_LOGO, poweroff },
  29 };
  30
  31 #include "gui-list.c"
  32 #include "gui-grid.c"
  33
  34 typedef struct {
  35         char option;
  36         void(*show)(Eina_List *systems);
  37         void(*select)(Evas_Object *item);
  38 } Gui;
  39
  40 Gui guis[] = {
  41         { 'l', gui_list, gui_list_select_item },
  42         { 'g', gui_grid, NULL },
  43 };
  44
  45 /* if no option is passed in then use the first entry */
  46 static Gui *gui = &guis[0];
  47
  48 static void poweroff(void *data, Evas *evas, Evas_Object *item, void *event) {
  49         if (gui->select)
  50                 gui->select(item);
  51         system("poweroff");
  52 }
  53
  54 static void bootitem_clicked(void *data, Evas *evas, Evas_Object *item, void *event) {
  55         if (gui->select)
  56                 gui->select(item);
  57         boot_kernel((BootItem*)data);
  58         /* XXX: shouldn't be reached, display an error message? */
  59 }
  60
  61 static bool gui_init(){
  62         if (!ecore_init() || !ecore_evas_init())
  63                 return false;
  64
  65         /* XXX: fixed dimensions */
  66         ee = ecore_evas_new(NULL, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, NULL);
  67
  68         if (!ee)
  69                 return false;
  70
  71         ecore_evas_title_set(ee, APPNAME);
  72         ecore_evas_borderless_set(ee, 0);
  73         ecore_evas_show(ee);
  74
  75         evas = ecore_evas_get(ee);
  76         if (!evas)
  77                 return false;
  78
  79         evas_font_path_append(evas, FONT_PATH);
  80
  81         return true;
  82 }
  83
  84 int gui_show(int argc, char **argv) {
  85
  86         if (argc > 1 && argv[1][0] == '-') {
  87                 int i;
  88                 for (i = 0; i < countof(guis); i++) {
  89                         if (argv[1][1] == guis[i].option)
  90                                 gui = &guis[i];
  91                 }
  92         }
  93
  94         if (!gui_init()) {
  95                 eprint("Couldn't init GUI\n");
  96                 return 1;
  97         }
  98
  99         /* search for system images to boot and display them */
 100         gui->show(scan_system());
 101
 102         ecore_main_loop_begin();
 103
 104         return 0;
 105 }