src/install/acquire/ui-gnome.c

   1 /* $Id$
   2  * Drivers acquiring installation utility
   3  * Copyright (C) 2003 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "ui-gnome.h"   /* self */
  23 #include <glib/gmessages.h>
  24 #include "moduriload.h"
  25 #include "main.h"
  26 #include <gtk/gtkmain.h>
  27 #include <gtk/gtktreeviewcolumn.h>
  28 #include <gtk/gtkbox.h>
  29 #include <sys/time.h>
  30 #include <libgnomeui/gnome-app.h>
  31 #include <gtk/gtktreestore.h>
  32 #include <gtk/gtkframe.h>
  33 #include <gtk/gtkentry.h>
  34 #include <libgnomeui/gnome-druid.h>
  35 #include <libgnomeui/gnome-app-util.h>
  36 #include <libgnomeui/gnome-druid-page-edge.h>
  37 #include "final.h"
  38 #include <libgnomevfs/gnome-vfs-utils.h>
  39
  40 #include <captive/macros.h>
  41
  42
  43 /* Config: */
  44 #define PROGRESS_UPDATE_USEC 200000
  45 /* Although proper GTK+ locking is provided below there are some
  46  * bugs with compatibility of GTK+/Gnome-VFS/GConf.
  47  * The main thread executes gtk_main()->g_main_loop_run()
  48  * while the working thread initializes Gnome-VFS by GConf and
  49  * executes also g_main_loop_run() while sharing some poll() fds.
  50  */
  51 /* #define UI_GNOME_THREADS 1 */
  52
  53
  54 static GnomeApp *App;
  55 static GtkTreeStore *DriversTreeStore;
  56 static GtkFrame *DriversFrame;
  57 static GtkFrame *ProgressFrame;
  58 static GtkEntry *ProgressEntry;
  59 static GnomeDruid *Druid;
  60 static GtkButton *DruidButtonSkip;
  61 static GtkButton *DruidButtonOK;
  62 static GtkTreeView *DriversTreeView;
  63 static GnomeDruidPage *PageStart;
  64 static GnomeDruidPage *ScanDiskPage;
  65 static GnomeDruidPage *ScanPathPage;
  66 static GnomeDruidPage *MicrosoftComPage;
  67 static GnomeDruidPage *PageFinish;
  68 static GtkEntry *ScanPathLocationComboEntry;
  69 static GtkButton *MicrosoftComConfirmButton;
  70 static GtkProgressBar *MicrosoftComProgress;
  71 enum {
  72                 DRIVERS_TREE_STORE_COLUMN_TYPE,
  73                 DRIVERS_TREE_STORE_COLUMN_ID,
  74                 DRIVERS_TREE_STORE_COLUMN_NUM,  /* total # */
  75                 };
  76 #define DRIVERS_TREE_STORE_COLUMN_TYPE_LIST G_TYPE_STRING,G_TYPE_STRING
  77
  78
  79 /* map: (gchar *)type-> (GtkTreeIter *) */
  80 static GHashTable *DriversTreeStore_Iter_hash;
  81
  82 static void DriversTreeStore_Iter_hash_key_destroy_func(gchar *type)
  83 {
  84         g_return_if_fail(type!=NULL);
  85
  86         g_free(type);
  87 }
  88
  89 static void DriversTreeStore_Iter_hash_init(void)
  90 {
  91         if (DriversTreeStore_Iter_hash)
  92                 return;
  93         DriversTreeStore_Iter_hash=g_hash_table_new_full(g_str_hash,g_str_equal,
  94                         (GDestroyNotify)DriversTreeStore_Iter_hash_key_destroy_func,
  95                         NULL);  /* value_destroy_func */
  96 }
  97
  98 static GtkTreeIter *DriversTreeStore_Iter_hash_get_iter(const gchar *type)
  99 {
 100 GtkTreeIter *r;
 101
 102         g_return_val_if_fail(type!=NULL,NULL);
 103
 104         DriversTreeStore_Iter_hash_init();
 105         if (!(r=g_hash_table_lookup(DriversTreeStore_Iter_hash,type))) {
 106                 captive_new(r);
 107                 gtk_tree_store_append(DriversTreeStore,
 108                                 r,      /* iter */
 109                                 NULL);  /* parent */
 110                 g_hash_table_insert(DriversTreeStore_Iter_hash,g_strdup(type),r);
 111                 }
 112
 113         return r;
 114 }
 115
 116 static gboolean some_modules_found=FALSE;
 117 static gboolean in_progress=FALSE;
 118 static GnomeDruidPage *page_active;
 119
 120 static void state_changed(void)
 121 {
 122         /* Not yet initialized? */
 123         if (!App)
 124                 return;
 125
 126         gtk_widget_set_sensitive(GTK_WIDGET(DruidButtonSkip),
 127                         (page_active!=PageStart && page_active!=PageFinish));
 128         gtk_widget_set_sensitive(GTK_WIDGET(DruidButtonOK),some_modules_found);
 129
 130         if (in_progress) {
 131                 gtk_widget_set_sensitive(Druid->next,FALSE);
 132                 gtk_widget_set_sensitive(GTK_WIDGET(DruidButtonOK),some_modules_found);
 133                 gtk_widget_set_sensitive(GTK_WIDGET(MicrosoftComConfirmButton),FALSE);
 134                 }
 135         else {
 136                 /* It is checked by GTK+ whether the text changed: */
 137                 gtk_entry_set_text(ProgressEntry,"");
 138                 gtk_widget_set_sensitive(Druid->next,
 139                                 (page_active!=PageFinish && page_active!=MicrosoftComPage));
 140                 gtk_widget_set_sensitive(GTK_WIDGET(MicrosoftComConfirmButton),
 141                                 (page_active==MicrosoftComPage));
 142                 gtk_progress_bar_set_fraction(MicrosoftComProgress,(gdouble)0);
 143                 gtk_progress_bar_set_text(MicrosoftComProgress,"");
 144                 }
 145 }
 146
 147 static void ui_gnome_module_best_priority_notify(const gchar *module_type)
 148 {
 149 GtkTreeIter *iter;
 150
 151         g_return_if_fail(module_type!=NULL);
 152
 153         gdk_threads_enter();
 154
 155         iter=DriversTreeStore_Iter_hash_get_iter(module_type);
 156         gtk_tree_store_set(DriversTreeStore,iter,
 157                         DRIVERS_TREE_STORE_COLUMN_TYPE,module_type,
 158                         DRIVERS_TREE_STORE_COLUMN_ID  ,
 159                                         ((0
 160                                                                         || !strcmp(module_type,"ntoskrnl.exe")
 161                                                                         || !strcmp(module_type,"ntfs.sys"))
 162                                                         ? _("NOT FOUND; essential module for NTFS disks access")
 163                                                         : _("not found; optional module")),
 164                         -1);
 165
 166         gdk_flush();
 167         gdk_threads_leave();
 168 }
 169
 170 static void ui_gnome_module_available_notify(struct module_available *module_available)
 171 {
 172 GtkTreeIter *iter;
 173 static gboolean some_module_ntoskrnl_exe_found=FALSE;
 174 static gboolean some_module_ntfs_sys_found=FALSE;
 175
 176         g_return_if_fail(module_available!=NULL);
 177         g_return_if_fail(module_available->module!=NULL);
 178
 179         gdk_threads_enter();
 180
 181         iter=DriversTreeStore_Iter_hash_get_iter((const gchar *)module_available->module->type);
 182         gtk_tree_store_set(DriversTreeStore,iter,
 183                         DRIVERS_TREE_STORE_COLUMN_TYPE,module_available->module->type,
 184                         DRIVERS_TREE_STORE_COLUMN_ID  ,module_available->module->id,
 185                         -1);
 186
 187         if (!strcmp((const char *)module_available->module->type,"ntoskrnl.exe"))
 188                 some_module_ntoskrnl_exe_found=TRUE;
 189         if (!strcmp((const char *)module_available->module->type,"ntfs.sys"))
 190                 some_module_ntfs_sys_found=TRUE;
 191
 192         some_modules_found=some_module_ntoskrnl_exe_found && some_module_ntfs_sys_found;
 193         state_changed();
 194
 195         gdk_flush();
 196         gdk_threads_leave();
 197 }
 198
 199 static gboolean all_modules_found=FALSE;
 200
 201 static void ui_gnome_all_modules_found_notify(void)
 202 {
 203         gdk_threads_enter();
 204
 205         all_modules_found=TRUE;
 206         state_changed();
 207
 208         gdk_flush();
 209         gdk_threads_leave();
 210 }
 211
 212 static gboolean aborted=FALSE;
 213 static gboolean aborted_back=FALSE;     /* 'Back' button was clicked. */
 214 static struct timeval ProgressEntry_updated_timeval;
 215 static struct timeval ProgressBar_updated_timeval;
 216
 217 static void progress_start(void)
 218 {
 219         in_progress=TRUE;
 220         aborted=FALSE;
 221         aborted_back=FALSE;
 222         CAPTIVE_MEMZERO(&ProgressEntry_updated_timeval);
 223         CAPTIVE_MEMZERO(&ProgressBar_updated_timeval);
 224         state_changed();
 225 }
 226
 227 static void progress_end(void)
 228 {
 229         in_progress=FALSE;
 230         state_changed();
 231 }
 232
 233 static gboolean want_progress_update(struct timeval *timeval)
 234 {
 235 struct timeval now_timeval;
 236 struct timeval diff_timeval;
 237
 238         g_return_val_if_fail(timeval!=NULL,FALSE);
 239
 240         gettimeofday(   /* FIXME: errors ignored */
 241                         &now_timeval,   /* tv */
 242                         NULL);  /* tz */
 243         timersub(&now_timeval,timeval,&diff_timeval);
 244         if (!timeval->tv_sec || diff_timeval.tv_sec>0 || diff_timeval.tv_usec>=PROGRESS_UPDATE_USEC) {
 245                 *timeval=now_timeval;
 246                 return TRUE;
 247                 }
 248         return FALSE;
 249 }
 250
 251 static gboolean ui_gnome_progress(GnomeVFSURI *uri)
 252 {
 253 gboolean want_gdk_flush=FALSE;
 254
 255         /* 'uri' may be NULL */
 256
 257         gdk_threads_enter();
 258
 259         if (ProgressEntry) {
 260 static gchar *uri_text=NULL;
 261
 262                 /* Store 'uri' on each call (not just if 'diff_timeval' permits)
 263                  * as we may get into long cabinet extraction phase with 'uri==NULL' calls
 264                  * where we want to display the currently processed 'uri'.
 265                  */
 266                 if (uri) {
 267                         g_free(uri_text);
 268                         uri_text=gnome_vfs_uri_to_string(uri,GNOME_VFS_URI_HIDE_PASSWORD);
 269                         }
 270
 271                 if (uri_text) {
 272                         if (want_progress_update(&ProgressEntry_updated_timeval)) {
 273                                 gtk_entry_set_text(ProgressEntry,
 274                                                 uri_text+(strncmp(uri_text,"file://",strlen("file://")) ? 0 : strlen("file://")));
 275                                 want_gdk_flush=TRUE;
 276                                 }
 277                         }
 278                 }
 279
 280 #ifndef UI_GNOME_THREADS
 281         while (g_main_context_pending(NULL))
 282                 g_main_context_iteration(
 283                                 NULL,   /* context */
 284                                 FALSE); /* may_block */
 285 #endif /* UI_GNOME_THREADS */
 286
 287         if (want_gdk_flush)
 288                 gdk_flush();
 289         gdk_threads_leave();
 290
 291         /* Do not: g_thread_yield();
 292          * as it is TOO much expensive and we are multithreaded anyway.
 293          */
 294
 295         if (aborted)
 296                 return TRUE;
 297         if (all_modules_found)
 298                 return TRUE;
 299
 300         return FALSE;
 301 }
 302
 303 static void ui_gnome_progress_bar(gint done,gint length)
 304 {
 305         g_return_if_fail(done>=0);
 306         g_return_if_fail(length>=0);
 307
 308         if (!want_progress_update(&ProgressBar_updated_timeval))
 309                 return;
 310
 311         gdk_threads_enter();
 312
 313         if (!length) {
 314                 gtk_progress_bar_pulse(MicrosoftComProgress);
 315                 gtk_progress_bar_set_text(MicrosoftComProgress,"");
 316                 }
 317         else {
 318 gchar *length_display;
 319
 320                 /* Do not format 'done' by gnome_vfs_format_file_size_for_display()
 321                  * as the progress would not be visible for large 'done' sizes.
 322                  */
 323                 gtk_progress_bar_set_fraction(MicrosoftComProgress,((gdouble)done)/length);
 324                 length_display=gnome_vfs_format_file_size_for_display(length);
 325                 gtk_progress_bar_set_text(MicrosoftComProgress,
 326                                 captive_printf_alloca("%d B / %s",(int)done,length_display));
 327                 g_free(length_display);
 328                 }
 329
 330         gdk_flush();
 331         gdk_threads_leave();
 332 }
 333
 334 /* FIXME: Change it to "prepare" signal. */
 335 void on_Page_map(GtkWidget *vbox_widget,GtkWidget *page_widget)
 336 {
 337         /* Handle non-object (NULL) signal with reversed parameters? */
 338         if (GNOME_IS_DRUID_PAGE(vbox_widget) && page_widget==NULL) {
 339                 page_widget=vbox_widget;
 340                 vbox_widget=NULL;
 341                 }
 342         g_return_if_fail(vbox_widget==NULL || GTK_IS_VBOX(vbox_widget));
 343         g_return_if_fail(GNOME_IS_DRUID_PAGE(page_widget));
 344
 345         page_active=GNOME_DRUID_PAGE(page_widget);
 346         if (page_active==PageFinish) {
 347                 gnome_druid_set_show_finish(Druid,FALSE);       /* set it each time */
 348                 /**/ if (!some_modules_found)
 349                         gnome_druid_page_edge_set_text(GNOME_DRUID_PAGE_EDGE(PageFinish),_(
 350                                         "We need at least some version of drivers essential for this project:"
 351                                         " ntoskrnl.exe and ntfs.sys. Please click 'Back' button to obtain them"
 352                                         " by several methods offered by this installer."));
 353                 else {
 354 gchar *text;
 355
 356                         text=final_text(all_modules_found);
 357                         gnome_druid_page_edge_set_text(GNOME_DRUID_PAGE_EDGE(PageFinish),text);
 358                         g_free(text);
 359                         }
 360                 }
 361         if (page_active==ScanPathPage)
 362                 gtk_widget_grab_focus(GTK_WIDGET(ScanPathLocationComboEntry));
 363         state_changed();
 364
 365         if (!vbox_widget)
 366                 return;
 367
 368         /* FIXME: 'freeze' apparently does not help 'repositioning' of
 369          * 'DriversTreeView' during first 'map' of each 'Page'.
 370          */
 371         gtk_widget_freeze_child_notify(vbox_widget);
 372
 373         gtk_widget_reparent(GTK_WIDGET(DriversFrame),vbox_widget);
 374         gtk_widget_reparent(GTK_WIDGET(ProgressFrame),vbox_widget);
 375
 376         gtk_box_reorder_child(GTK_BOX(vbox_widget),GTK_WIDGET(DriversFrame),
 377                         0);     /* position */
 378
 379         gtk_box_set_child_packing(GTK_BOX(vbox_widget),GTK_WIDGET(DriversFrame),
 380                         FALSE,  /* expand */
 381                         TRUE,   /* fill */
 382                         0,      /* padding */
 383                         GTK_PACK_START);
 384         gtk_box_set_child_packing(GTK_BOX(vbox_widget),GTK_WIDGET(ProgressFrame),
 385                         FALSE,  /* expand */
 386                         TRUE,   /* fill */
 387                         0,      /* padding */
 388                         GTK_PACK_START);
 389
 390         /* FIXME: Needed to fix (0,0)-position inside parent GdkWindow. */
 391         gtk_widget_queue_resize(GTK_WIDGET(DriversTreeView));
 392         gtk_widget_queue_resize(GTK_WIDGET(ProgressEntry));
 393
 394         gtk_widget_thaw_child_notify(vbox_widget);
 395 }
 396
 397 typedef void (*process_t)(void);
 398
 399 #ifdef UI_GNOME_THREADS
 400 /* 'GThreadFunc' type. */
 401 gpointer execute_process_func(process_t process /* data */)
 402 {
 403         (*process)();
 404
 405         gdk_threads_enter();
 406
 407         gtk_main_quit();        /* Abort gtk_main() of execute_process(). */
 408
 409         gdk_flush();
 410         gdk_threads_leave();
 411
 412         return NULL;
 413 }
 414 #endif /* UI_GNOME_THREADS */
 415
 416 /* We are called inside gdk_threads_enter(). */
 417 static void execute_process(process_t process)
 418 {
 419 #ifdef UI_GNOME_THREADS
 420 GThread *gthread;
 421 #endif /* UI_GNOME_THREADS */
 422
 423         progress_start();
 424 #ifdef UI_GNOME_THREADS
 425         gthread=g_thread_create_full(
 426                         (GThreadFunc)execute_process_func,      /* func */
 427                         process,        /* data */
 428                         0,      /* stack_size; 0 means the default size */
 429                         TRUE,   /* joinable */
 430                         TRUE,   /* bound; use system thread */
 431                         G_THREAD_PRIORITY_LOW,  /* priority; G_THREAD_PRIORITY_LOW is the lowest one */
 432                         NULL);  /* error */
 433         gtk_main();     /* We are already called inside gdk_threads_enter(). */
 434         /* I hope some other gtk_main_quit() did not occur as we would
 435          * locked if the 'process' func did not finish yet.
 436          */
 437         g_thread_join(gthread);
 438 #else /* UI_GNOME_THREADS */
 439         (*process)();
 440 #endif /* UI_GNOME_THREADS */
 441         progress_end();
 442 }
 443
 444 /* 'process_t' typed. */
 445 static void process_scan_disk(void)
 446 {
 447         scan_disks_quick();
 448         scan_disks();
 449 }
 450
 451 static GnomeVFSURI *process_scan_path_scan_path_uri;
 452
 453 /* 'process_t' typed. */
 454 static void process_scan_path(void)
 455 {
 456         mod_uri_load_base_reporting(process_scan_path_scan_path_uri);
 457 }
 458
 459 /* 'process_t' typed. */
 460 static void process_microsoft_com(void)
 461 {
 462         microsoft_com();
 463 }
 464
 465 gboolean on_Page_next(GnomeDruidPage *gnomedruidpage,GtkWidget *widget,gpointer user_data /* unused */)
 466 {
 467         g_return_val_if_fail(GNOME_IS_DRUID_PAGE(gnomedruidpage),FALSE);
 468
 469         if (in_progress)        /* bogus callback - we should be non-sensitive */
 470                 return TRUE;    /* ignore button press */
 471
 472         /**/ if (page_active==PageStart) {
 473                 if (all_modules_found) {
 474                         gnome_druid_set_page(Druid,PageFinish);
 475                         return TRUE;    /* ignore button press */
 476                         }
 477                 }
 478         else if (page_active==ScanDiskPage) {
 479                 execute_process(process_scan_disk);
 480                 if (aborted_back) {
 481                         gnome_druid_set_page(Druid,PageStart);
 482                         return TRUE;    /* ignore button press */
 483                         }
 484                 if (all_modules_found) {
 485                         gnome_druid_set_page(Druid,PageFinish);
 486                         return TRUE;    /* ignore button press */
 487                         }
 488                 return FALSE;   /* proceed to next page */
 489                 }
 490         else if (page_active==ScanPathPage) {
 491 const gchar *scan_path_uri_text=gtk_entry_get_text(ScanPathLocationComboEntry);
 492
 493                 if (scan_path_uri_text && *scan_path_uri_text) {
 494 GnomeVFSURI *scan_path_uri;
 495
 496                         if ((scan_path_uri=gnome_vfs_uri_new(scan_path_uri_text))) {
 497                                 process_scan_path_scan_path_uri=scan_path_uri;
 498                                 execute_process(process_scan_path);
 499                                 gnome_vfs_uri_unref(scan_path_uri);
 500                                 if (aborted_back) {
 501                                         gnome_druid_set_page(Druid,(all_modules_found ? PageStart : ScanDiskPage));
 502                                         return TRUE;    /* ignore button press */
 503                                         }
 504                                 if (all_modules_found) {
 505                                         gnome_druid_set_page(Druid,PageFinish);
 506                                         return TRUE;    /* ignore button press */
 507                                         }
 508                                 gtk_entry_set_text(ScanPathLocationComboEntry,"");
 509                                 }
 510                         else
 511                                 g_warning(_("Invalid URI: %s"),scan_path_uri_text);
 512                         gtk_widget_grab_focus(GTK_WIDGET(ScanPathLocationComboEntry));
 513                         return TRUE;    /* ignore button press; we cleared the URI entry */
 514                         }
 515                 return FALSE;   /* proceed to next page */
 516                 }
 517
 518         return FALSE;   /* proceed to next page */
 519 }
 520
 521 void on_MicrosoftComConfirmButton_clicked(GtkButton *button,gpointer user_data)
 522 {
 523         g_return_if_fail(GTK_IS_BUTTON(button));
 524
 525         if (in_progress)        /* bogus callback */
 526                 return;
 527         if (page_active!=MicrosoftComPage)      /* bogus callback */
 528                 return;
 529
 530         execute_process(process_microsoft_com);
 531         if (aborted_back) {
 532                 gnome_druid_set_page(Druid,(all_modules_found ? PageStart : ScanPathPage));
 533                 return;
 534                 }
 535         if (all_modules_found) {
 536                 gnome_druid_set_page(Druid,PageFinish);
 537                 return;
 538                 }
 539
 540         gnome_druid_set_page(Druid,PageFinish);
 541 }
 542
 543 void on_DruidButtonSkip_clicked(GtkButton *button,gpointer user_data /* unused */)
 544 {
 545         g_return_if_fail(GTK_IS_BUTTON(button));
 546
 547         if (in_progress) {
 548                 aborted=TRUE;
 549                 state_changed();
 550                 return;
 551                 }
 552         if (all_modules_found)
 553                 gnome_druid_set_page(Druid,PageFinish);
 554         else if (page_active==ScanDiskPage)
 555                 gnome_druid_set_page(Druid,ScanPathPage);
 556         else if (page_active==ScanPathPage)
 557                 gnome_druid_set_page(Druid,MicrosoftComPage);
 558         else if (page_active==MicrosoftComPage)
 559                 gnome_druid_set_page(Druid,PageFinish);
 560 }
 561
 562 gboolean on_Page_back(GnomeDruidPage *gnomedruidpage,GtkWidget *widget,gpointer user_data)
 563 {
 564         g_return_val_if_fail(GNOME_IS_DRUID_PAGE(gnomedruidpage),FALSE);
 565
 566         if (!in_progress) {
 567                 if (all_modules_found) {
 568                         gnome_druid_set_page(Druid,PageStart);
 569                         return TRUE;    /* ignore button press */
 570                         }
 571                 return FALSE;   /* proceed to previous page */
 572                 }
 573
 574         aborted=TRUE;
 575         aborted_back=TRUE;
 576         state_changed();
 577
 578         return TRUE;    /* ignore button press now; we will respect 'aborted_back' */
 579 }
 580
 581 void on_Druid_cancel(GnomeDruid *gnomedruid,gpointer user_data /* unused */)
 582 {
 583         g_return_if_fail(GNOME_IS_DRUID(gnomedruid));
 584
 585         /* gtk_main_quit() would not abort the current operation. */
 586         exit(EXIT_SUCCESS);
 587 }
 588
 589 static void on_DruidButtonOK_clicked_dialog_callback(gint reply,gint *replyp /* data */)
 590 {
 591         g_return_if_fail(reply>=0);
 592         g_return_if_fail(replyp!=NULL);
 593
 594         *replyp=reply;
 595 }
 596
 597 void on_DruidButtonOK_clicked(GtkButton *button,gpointer user_data /* unused */)
 598 {
 599 GtkWidget *dialog;
 600 gint reply;
 601
 602         g_return_if_fail(GTK_IS_BUTTON(button));
 603
 604         if (all_modules_found)
 605                 exit(EXIT_SUCCESS);
 606
 607         /* TODO: Avoid dialog if already on Finish page. */
 608         reply=-1;
 609         dialog=gnome_app_ok_cancel_modal(App,_(
 610                         "Although essential modules (\"ntoskrnl.exe\" and \"ntfs.sys\") are available "
 611                         "you may still want to get their better version and/or more modules. "
 612                         "Really quit?"),
 613                         (GnomeReplyCallback)on_DruidButtonOK_clicked_dialog_callback,
 614                         &reply);        /* data */
 615         g_signal_connect((gpointer)dialog,"close",G_CALLBACK(gtk_main_quit),NULL);
 616         /* Never call gtk_main() from other thread than the initial one.
 617          * We would have to switch GTK+ context (g_main_context()?).
 618          */
 619         gtk_main();
 620         /* 'dialog' gets destroyed automatically */
 621         if (reply==0)   /* 0 for 'OK', 1 for 'Cancel', left -1 for dialog close. */
 622                 exit(EXIT_SUCCESS);
 623 }
 624
 625 static void button_stock_set_label(GtkWidget *widget,const gchar *label_text_new /* callback_data */)
 626 {
 627         g_return_if_fail(GTK_IS_WIDGET(widget));
 628         g_return_if_fail(label_text_new!=NULL);
 629
 630         /**/ if (GTK_IS_CONTAINER(widget))
 631                 gtk_container_foreach(GTK_CONTAINER(widget),
 632                                 (GtkCallback)button_stock_set_label,    /* callback */
 633                                 (/* de-conts */ gchar *)label_text_new);        /* callback_data */
 634         else if (GTK_IS_LABEL(widget))
 635                 gtk_label_set_text_with_mnemonic(GTK_LABEL(widget),label_text_new);
 636 }
 637
 638 static void PageFinish_set_label_attr(GtkWidget *widget,gpointer callback_data /* unused */)
 639 {
 640         g_return_if_fail(GTK_IS_WIDGET(widget));
 641
 642         /**/ if (GTK_IS_CONTAINER(widget))
 643                 gtk_container_foreach(GTK_CONTAINER(widget),
 644                                 (GtkCallback)PageFinish_set_label_attr, /* callback */
 645                                 callback_data); /* callback_data; unused */
 646         else if (GTK_IS_LABEL(widget) && gtk_label_get_line_wrap(GTK_LABEL(widget)))
 647                 gtk_label_set_selectable(GTK_LABEL(widget),TRUE);
 648 }
 649
 650 /* of "ui-gnome-interface.h": */
 651 GtkWidget *create_App(void);
 652 /* of "ui-gnome-support.h": */
 653 GtkWidget *lookup_widget(GtkWidget *widget,const gchar *widget_name);
 654
 655 static void App_init(void)
 656 {
 657 GtkTreeViewColumn *column;
 658 GtkCellRenderer *cell;
 659 GtkBox *druid_button_box;
 660
 661         gdk_threads_enter();
 662
 663         App=GNOME_APP(create_App());
 664
 665         DriversTreeView=GTK_TREE_VIEW(lookup_widget(GTK_WIDGET(App),"DriversTreeView"));
 666         DriversFrame=GTK_FRAME(lookup_widget(GTK_WIDGET(App),"DriversFrame"));
 667         ProgressFrame=GTK_FRAME(lookup_widget(GTK_WIDGET(App),"ProgressFrame"));
 668         Druid=GNOME_DRUID(lookup_widget(GTK_WIDGET(App),"Druid"));
 669         PageStart=GNOME_DRUID_PAGE(lookup_widget(GTK_WIDGET(App),"PageStart"));
 670         ScanDiskPage=GNOME_DRUID_PAGE(lookup_widget(GTK_WIDGET(App),"ScanDiskPage"));
 671         ScanPathPage=GNOME_DRUID_PAGE(lookup_widget(GTK_WIDGET(App),"ScanPathPage"));
 672         MicrosoftComPage=GNOME_DRUID_PAGE(lookup_widget(GTK_WIDGET(App),"MicrosoftComPage"));
 673         PageFinish=GNOME_DRUID_PAGE(lookup_widget(GTK_WIDGET(App),"PageFinish"));
 674         ScanPathLocationComboEntry=GTK_ENTRY(lookup_widget(GTK_WIDGET(App),"ScanPathLocationComboEntry"));
 675         MicrosoftComConfirmButton=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"MicrosoftComConfirmButton"));
 676         MicrosoftComProgress=GTK_PROGRESS_BAR(lookup_widget(GTK_WIDGET(App),"MicrosoftComProgress"));
 677         ProgressEntry=GTK_ENTRY(lookup_widget(GTK_WIDGET(App),"ProgressEntry"));
 678
 679         druid_button_box=GTK_BOX(gtk_widget_get_parent(Druid->next));
 680
 681         DriversTreeStore=gtk_tree_store_new(DRIVERS_TREE_STORE_COLUMN_NUM,DRIVERS_TREE_STORE_COLUMN_TYPE_LIST);
 682         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(DriversTreeStore),
 683                         DRIVERS_TREE_STORE_COLUMN_TYPE,GTK_SORT_ASCENDING);
 684         gtk_tree_view_set_model(DriversTreeView,GTK_TREE_MODEL(DriversTreeStore));
 685
 686         column=gtk_tree_view_column_new();
 687         cell=gtk_cell_renderer_text_new();
 688         gtk_tree_view_column_pack_start(column,cell,
 689                         TRUE);  /* expand */
 690         gtk_tree_view_column_set_attributes(column,cell,
 691                         "text",DRIVERS_TREE_STORE_COLUMN_TYPE,
 692                         NULL);
 693         gtk_tree_view_append_column(DriversTreeView,column);
 694
 695         column=gtk_tree_view_column_new();
 696         cell=gtk_cell_renderer_text_new();
 697         gtk_tree_view_column_pack_start(column,cell,
 698                         TRUE);  /* expand */
 699         gtk_tree_view_column_set_attributes(column,cell,
 700                         "text",DRIVERS_TREE_STORE_COLUMN_ID,
 701                         NULL);
 702         gtk_tree_view_append_column(DriversTreeView,column);
 703
 704         /* gnome_druid_set_show_finish() just replaces Next<->Finish buttons displayed. */
 705         gtk_widget_hide(GTK_WIDGET(Druid->finish));
 706
 707         DruidButtonSkip=GTK_BUTTON(gtk_button_new_from_stock(GTK_STOCK_REDO));
 708         button_stock_set_label(
 709                         GTK_WIDGET(DruidButtonSkip),    /* widget */
 710                         _("_Skip"));    /* label_text_new */
 711         gtk_box_pack_end(druid_button_box,GTK_WIDGET(DruidButtonSkip),FALSE,TRUE,0);
 712         gtk_widget_show(GTK_WIDGET(DruidButtonSkip));
 713         g_signal_connect((gpointer)DruidButtonSkip,"clicked",G_CALLBACK(on_DruidButtonSkip_clicked),NULL);
 714
 715         DruidButtonOK=GTK_BUTTON(gtk_button_new_from_stock(GTK_STOCK_OK));
 716         gtk_box_pack_end(druid_button_box,GTK_WIDGET(DruidButtonOK),FALSE,TRUE,0);
 717         gtk_widget_show(GTK_WIDGET(DruidButtonOK));
 718         g_signal_connect((gpointer)DruidButtonOK,"clicked",G_CALLBACK(on_DruidButtonOK_clicked),NULL);
 719
 720         PageFinish_set_label_attr(
 721                         GTK_WIDGET(PageFinish), /* widget */
 722                         NULL);  /* callback_data; unused */
 723
 724         state_changed();
 725
 726         gdk_threads_leave();
 727 }
 728
 729 static void ui_gnome_g_log_handler(const gchar *log_domain,GLogLevelFlags log_level,const gchar *message,gpointer user_data)
 730 {
 731 GtkWidget *dialog;
 732
 733         /* Ignore arrors by cabextract during its abortion. */
 734         if (in_progress && aborted)
 735                 return;
 736
 737         gdk_threads_enter();
 738
 739         /**/ if (log_level & G_LOG_LEVEL_ERROR)
 740                 dialog=gnome_app_error(App,message);
 741         else if (log_level & (G_LOG_LEVEL_CRITICAL|G_LOG_LEVEL_WARNING))
 742                 dialog=gnome_app_warning(App,message);
 743         else
 744                 dialog=gnome_app_message(App,message);
 745
 746         gtk_window_set_modal(GTK_WINDOW(dialog),TRUE);
 747         g_signal_connect((gpointer)dialog,"close",G_CALLBACK(gtk_main_quit),NULL);
 748         gtk_main();
 749         /* 'dialog' gets destroyed automatically */
 750
 751         gdk_flush();
 752         gdk_threads_leave();
 753 }
 754
 755 static void ui_gnome_interactive(void)
 756 {
 757         gdk_threads_enter();
 758
 759         /* Postpone gtk_widget_show_all() from App_init() here
 760          * to have already passed all ui_gnome_module_available_notify().
 761          */
 762         gnome_druid_set_page(Druid,MicrosoftComPage);
 763         gtk_widget_show_all(GTK_WIDGET(App));
 764 #if 0
 765         /* gnome_druid_set_page(Druid,PageStart); */
 766         gnome_druid_set_page(Druid,ScanDiskPage);
 767         gnome_druid_set_page(Druid,ScanPathPage);
 768         /* gnome_druid_set_page(Druid,MicrosoftComPage); */
 769         gnome_druid_set_page(Druid,PageFinish);
 770 #endif
 771         gnome_druid_set_page(Druid,PageStart);
 772
 773         gtk_main();
 774
 775         gdk_threads_leave();
 776
 777         exit(EXIT_SUCCESS);
 778 }
 779
 780 gboolean ui_gnome_init(void)
 781 {
 782         acquire_module_available_notify=ui_gnome_module_available_notify;
 783         acquire_module_all_modules_found_notify=ui_gnome_all_modules_found_notify;
 784         ui_progress=ui_gnome_progress;
 785         ui_progress_bar=ui_gnome_progress_bar;
 786         ui_interactive=ui_gnome_interactive;
 787         captivemodid_module_best_priority_notify=ui_gnome_module_best_priority_notify;
 788
 789 #ifdef UI_GNOME_THREADS
 790         /* gdk_threads_init() must be called before gtk_init()!
 791          * gtk_init() gets called by create_App() here.
 792          */
 793         if (!g_thread_supported())
 794                 g_thread_init(NULL);
 795         if (!gdk_threads_mutex)
 796                 gdk_threads_init();
 797 #endif /* UI_GNOME_THREADS */
 798
 799         /* Graphic widgets will all be hidden yet. */
 800         App_init();
 801         /* ui_gnome_g_log_handler() needs 'App'. */
 802         g_log_set_handler(
 803                         G_LOG_DOMAIN,   /* log_domain; "Captive" */
 804                         G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL,    /* log_levels */
 805                         ui_gnome_g_log_handler, /* log_func */
 806                         NULL);  /* user_data */
 807
 808         return TRUE;
 809 }