]> git.ozlabs.org Git - petitboot/blobdiff - ui/ncurses/nc-cui.c
ui/ncurses: Add safe mode indicator
[petitboot] / ui / ncurses / nc-cui.c
index adbb3d60d9875904ef28878f42f7b820bf1cc128..1f163b9ed10f3323a016a28c64bc5d71d96f8c32 100644 (file)
@@ -16,9 +16,9 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#if defined(HAVE_CONFIG_H)
 #include "config.h"
-
-#define _GNU_SOURCE
+#endif
 
 #include <assert.h>
 #include <errno.h>
 #include "waiter/waiter.h"
 #include "process/process.h"
 #include "ui/common/discover-client.h"
+#include "ui/common/ui-system.h"
 #include "nc-cui.h"
-
-static struct cui_opt_data *cod_from_item(struct pmenu_item *item)
-{
-       return item->data;
-}
+#include "nc-boot-editor.h"
+#include "nc-config.h"
+#include "nc-sysinfo.h"
+#include "nc-helpscreen.h"
 
 static void cui_start(void)
 {
@@ -58,6 +58,11 @@ static void cui_start(void)
        define_key("\x7f", KEY_BACKSPACE);
        define_key("\x08", KEY_BACKSPACE);
 
+       /* we need backtab too, for form navigation. vt220 doesn't include
+        * this (kcbt), but we don't want to require a full linux/xterm termcap
+        */
+       define_key("\x1b[Z", KEY_BTAB);
+
        while (getch() != ERR)          /* flush stdin */
                (void)0;
 }
@@ -145,13 +150,8 @@ static int cui_boot(struct pmenu_item *item)
 
        nc_scr_status_printf(cui->current, "Booting %s...", cod->name);
 
-       def_prog_mode();
-
        result = discover_client_boot(cui->client, NULL, cod->opt, cod->bd);
 
-       reset_prog_mode();
-       redrawwin(cui->current->main_ncw);
-
        if (result) {
                nc_scr_status_printf(cui->current,
                                "Failed: boot %s", cod->bd->image);
@@ -160,80 +160,128 @@ static int cui_boot(struct pmenu_item *item)
        return 0;
 }
 
-/**
- * cui_boot_editor_on_exit - The boot_editor on_exit callback.
- */
-
-static void cui_boot_editor_on_exit(struct boot_editor *boot_editor,
-               enum boot_editor_result boot_editor_result,
+static void cui_boot_editor_on_exit(struct cui *cui,
+               struct pmenu_item *item,
                struct pb_boot_data *bd)
 {
-       struct cui *cui = cui_from_pmenu(boot_editor->original_pmenu);
-       struct pmenu_item *item = boot_editor->data;
+       struct pmenu *menu = cui->main;
        struct cui_opt_data *cod;
+       static int user_idx = 0;
 
-       if (boot_editor_result != boot_editor_update) {
+       /* Was the edit cancelled? */
+       if (!bd) {
                cui_set_current(cui, &cui->main->scr);
-               talloc_free(boot_editor);
+               talloc_free(cui->boot_editor);
+               cui->boot_editor = NULL;
                return;
        }
 
-       assert(bd);
-
        /* Is this was a new item, we'll need to update the menu */
        if (!item) {
-               struct pmenu *menu = boot_editor->original_pmenu;
                int insert_pt;
 
+               cod = talloc_zero(NULL, struct cui_opt_data);
+               cod->name = talloc_asprintf(cod, "User item %u", ++user_idx);
+
+               item = pmenu_item_create(menu, cod->name);
+               if (!item) {
+                       talloc_free(cod);
+                       goto out;
+               }
+
+               item->on_edit = cui_item_edit;
+               item->on_execute = cui_boot;
+               item->data = cod;
+
+               talloc_steal(item, cod);
+
                /* Detach the items array. */
                set_menu_items(menu->ncm, NULL);
 
                /* Insert new item at insert_pt. */
                insert_pt = pmenu_grow(menu, 1);
-               item = pmenu_item_alloc(menu);
-               item->on_edit = cui_item_edit;
-               item->on_execute = cui_boot;
-               item->data = cod = talloc_zero(item, struct cui_opt_data);
-
-               cod->name = talloc_asprintf(cod, "User item %u:", insert_pt);
-               pmenu_item_setup(menu, item, insert_pt,
-                               talloc_strdup(item, cod->name));
+               pmenu_item_insert(menu, item, insert_pt);
 
                /* Re-attach the items array. */
                set_menu_items(menu->ncm, menu->items);
-               menu->scr.post(&menu->scr);
+               nc_scr_post(&menu->scr);
        } else {
                cod = item->data;
        }
 
        cod->bd = talloc_steal(cod, bd);
 
-       /* FIXME: need to make item visible somehow */
        set_current_item(item->pmenu->ncm, item->nci);
+out:
        cui_set_current(cui, &cui->main->scr);
-       talloc_free(boot_editor);
+       talloc_free(cui->boot_editor);
+       cui->boot_editor = NULL;
 }
 
 void cui_item_edit(struct pmenu_item *item)
 {
        struct cui *cui = cui_from_item(item);
-       struct cui_opt_data *cod = cod_from_item(item);
-       struct boot_editor *boot_editor;
-
-       boot_editor = boot_editor_init(item->pmenu, cod->bd,
-                       cui_boot_editor_on_exit);
-       boot_editor->data = item;
-       cui_set_current(cui, &boot_editor->scr);
+       cui->boot_editor = boot_editor_init(cui, item, cui->sysinfo,
+                                       cui_boot_editor_on_exit);
+       cui_set_current(cui, boot_editor_scr(cui->boot_editor));
 }
 
 void cui_item_new(struct pmenu *menu)
 {
        struct cui *cui = cui_from_pmenu(menu);
-       struct boot_editor *boot_editor;
+       cui->boot_editor = boot_editor_init(cui, NULL, cui->sysinfo,
+                                       cui_boot_editor_on_exit);
+       cui_set_current(cui, boot_editor_scr(cui->boot_editor));
+}
+
+static void cui_sysinfo_exit(struct cui *cui)
+{
+       cui_set_current(cui, &cui->main->scr);
+       talloc_free(cui->sysinfo_screen);
+       cui->sysinfo_screen = NULL;
+}
+
+void cui_show_sysinfo(struct cui *cui)
+{
+       cui->sysinfo_screen = sysinfo_screen_init(cui, cui->sysinfo,
+                       cui_sysinfo_exit);
+       cui_set_current(cui, sysinfo_screen_scr(cui->sysinfo_screen));
+}
+
+static void cui_config_exit(struct cui *cui)
+{
+       cui_set_current(cui, &cui->main->scr);
+       talloc_free(cui->config_screen);
+       cui->config_screen = NULL;
+}
+
+void cui_show_config(struct cui *cui)
+{
+       cui->config_screen = config_screen_init(cui, cui->config,
+                       cui->sysinfo, cui_config_exit);
+       cui_set_current(cui, config_screen_scr(cui->config_screen));
+}
+
+static void cui_help_exit(struct cui *cui)
+{
+       cui_set_current(cui, help_screen_return_scr(cui->help_screen));
+       talloc_free(cui->help_screen);
+       cui->help_screen = NULL;
+}
+
+void cui_show_help(struct cui *cui, const char *title, const char *text)
+{
+       if (!cui->current)
+               return;
+
+       if (cui->help_screen)
+               return;
+
+       cui->help_screen = help_screen_init(cui, cui->current,
+                       title, text, cui_help_exit);
 
-       boot_editor = boot_editor_init(menu, NULL,
-                       cui_boot_editor_on_exit);
-       cui_set_current(cui, &boot_editor->scr);
+       if (cui->help_screen)
+               cui_set_current(cui, help_screen_scr(cui->help_screen));
 }
 
 /**
@@ -249,10 +297,11 @@ struct nc_scr *cui_set_current(struct cui *cui, struct nc_scr *scr)
        assert(cui->current != scr);
 
        old = cui->current;
-       old->unpost(old);
+       nc_scr_unpost(old);
 
        cui->current = scr;
-       cui->current->post(cui->current);
+
+       nc_scr_post(cui->current);
 
        return old;
 }
@@ -261,10 +310,8 @@ static bool process_global_keys(struct cui *cui, int key)
 {
        switch (key) {
        case 0xc:
-               if (cui->current && cui->current->main_ncw) {
-                       redrawwin(cui->current->main_ncw);
-                       wrefresh(cui->current->main_ncw);
-               }
+               if (cui->current && cui->current->main_ncw)
+                       wrefresh(curscr);
                return true;
        }
        return false;
@@ -280,16 +327,21 @@ static int cui_process_key(void *arg)
 
        assert(cui->current);
 
-       if (!cui->has_input)
-               discover_client_cancel_default(cui->client);
-       cui->has_input = true;
-
        for (;;) {
                int c = getch();
 
+               pb_debug("%s: got key %d\n", __func__, c);
+
                if (c == ERR)
                        break;
 
+               if (!cui->has_input) {
+                       pb_log("UI input received (key = %d), aborting "
+                                       "default boot\n", c);
+                       discover_client_cancel_default(cui->client);
+                       cui->has_input = true;
+               }
+
                if (process_global_keys(cui, c))
                        continue;
 
@@ -356,30 +408,23 @@ static int cui_boot_option_add(struct device *dev, struct boot_option *opt,
        struct cui *cui = cui_from_arg(arg);
        struct cui_opt_data *cod;
        unsigned int insert_pt;
+       int result, rows, cols;
        struct pmenu_item *i;
        ITEM *selected;
-       int result;
 
        pb_debug("%s: %p %s\n", __func__, opt, opt->id);
 
        selected = current_item(cui->main->ncm);
+       menu_format(cui->main->ncm, &rows, &cols);
 
        if (cui->current == &cui->main->scr)
-               cui->current->unpost(cui->current);
-
-       /* This disconnects items array from menu. */
-
-       result = set_menu_items(cui->main->ncm, NULL);
-
-       if (result)
-               pb_log("%s: set_menu_items failed: %d\n", __func__, result);
-
-       /* Insert new items at insert_pt. */
-       insert_pt = pmenu_grow(cui->main, 1);
+               nc_scr_unpost(cui->current);
 
        /* Save the item in opt->ui_info for cui_device_remove() */
 
-       opt->ui_info = i = pmenu_item_alloc(cui->main);
+       opt->ui_info = i = pmenu_item_create(cui->main, opt->name);
+       if (!i)
+               return -1;
 
        i->on_edit = cui_item_edit;
        i->on_execute = cui_boot;
@@ -396,7 +441,15 @@ static int cui_boot_option_add(struct device *dev, struct boot_option *opt,
        cod->bd->dtb = talloc_strdup(cod->bd, opt->dtb_file);
        cod->bd->args = talloc_strdup(cod->bd, opt->boot_args);
 
-       pmenu_item_setup(cui->main, i, insert_pt, cod->name);
+       /* This disconnects items array from menu. */
+       result = set_menu_items(cui->main->ncm, NULL);
+
+       if (result)
+               pb_log("%s: set_menu_items failed: %d\n", __func__, result);
+
+       /* Insert new items at insert_pt. */
+       insert_pt = pmenu_grow(cui->main, 1);
+       pmenu_item_insert(cui->main, i, insert_pt);
 
        pb_log("%s: adding opt '%s'\n", __func__, cod->name);
        pb_log("   image  '%s'\n", cod->bd->image);
@@ -415,13 +468,23 @@ static int cui_boot_option_add(struct device *dev, struct boot_option *opt,
                        item_count(cui->main->ncm) + 1);
        }
 
-       /* FIXME: need to make item visible somehow */
-       menu_driver(cui->main->ncm, REQ_SCR_UPAGE);
-       menu_driver(cui->main->ncm, REQ_SCR_DPAGE);
-       set_current_item(cui->main->ncm, selected);
+       if (!item_visible(selected)) {
+               int idx, top;
+
+               top = top_row(cui->main->ncm);
+               idx = item_index(selected);
+
+               /* If our index is above the current top row, align
+                * us to the new top. Otherwise, align us to the new
+                * bottom */
+               top = top < idx ? idx - rows : idx;
+
+               set_top_row(cui->main->ncm, top);
+               set_current_item(cui->main->ncm, selected);
+       }
 
        if (cui->current == &cui->main->scr)
-               cui->current->post(cui->current);
+               nc_scr_post(cui->current);
 
        return 0;
 }
@@ -442,7 +505,7 @@ static void cui_device_remove(struct device *dev, void *arg)
        pb_log("%s: %p %s\n", __func__, dev, dev->id);
 
        if (cui->current == &cui->main->scr)
-               cui->current->unpost(cui->current);
+               nc_scr_unpost(cui->current);
 
        /* This disconnects items array from menu. */
 
@@ -472,7 +535,7 @@ static void cui_device_remove(struct device *dev, void *arg)
        }
 
        if (cui->current == &cui->main->scr)
-               cui->current->post(cui->current);
+               nc_scr_post(cui->current);
 }
 
 static void cui_update_status(struct boot_status *status, void *arg)
@@ -498,22 +561,61 @@ static void cui_update_mm_title(struct cui *cui)
                                " %s", cui->sysinfo->identifier);
 
        if (cui->current == &cui->main->scr)
-               cui->current->post(cui->current);
+               nc_scr_post(cui->current);
 }
 
 static void cui_update_sysinfo(struct system_info *sysinfo, void *arg)
 {
        struct cui *cui = cui_from_arg(arg);
        cui->sysinfo = talloc_steal(cui, sysinfo);
+
+       /* if we're currently displaying the system info screen, inform it
+        * of the updated information. */
+       if (cui->sysinfo_screen)
+               sysinfo_screen_update(cui->sysinfo_screen, sysinfo);
+
+       /* ... and do the same with the config screen... */
+       if (cui->config_screen)
+               config_screen_update(cui->config_screen, cui->config, sysinfo);
+
+       /* ... and the boot editor. */
+       if (cui->boot_editor)
+               boot_editor_update(cui->boot_editor, sysinfo);
+
        cui_update_mm_title(cui);
 }
 
+static void cui_update_config(struct config *config, void *arg)
+{
+       struct cui *cui = cui_from_arg(arg);
+       cui->config = talloc_steal(cui, config);
+
+       if (cui->config_screen)
+               config_screen_update(cui->config_screen, config, cui->sysinfo);
+
+       if (config->safe_mode)
+               nc_scr_status_printf(cui->current,
+                               "SAFE MODE: select '%s' to continue",
+                               "Rescan devices");
+}
+
+int cui_send_config(struct cui *cui, struct config *config)
+{
+       return discover_client_send_config(cui->client, config);
+}
+
+void cui_send_reinit(struct cui *cui)
+{
+       discover_client_send_reinit(cui->client);
+}
+
 static struct discover_client_ops cui_client_ops = {
        .device_add = NULL,
        .boot_option_add = cui_boot_option_add,
        .device_remove = cui_device_remove,
        .update_status = cui_update_status,
        .update_sysinfo = cui_update_sysinfo,
+       .update_config = cui_update_config,
 };
 
 /**
@@ -588,6 +690,7 @@ retry_start:
        }
 
        atexit(cui_atexit);
+       talloc_steal(cui, cui->client);
        cui_start();
 
        waiter_register_io(cui->waitset, STDIN_FILENO, WAIT_IN,
@@ -628,7 +731,7 @@ int cui_run(struct cui *cui, struct pmenu *main, unsigned int default_item)
        cui->current = &cui->main->scr;
        cui->default_item = default_item;
 
-       cui->current->post(cui->current);
+       nc_scr_post(cui->current);
 
        while (1) {
                int result = waiter_poll(cui->waitset);