src/ui_tabcomp.c

   1 /*
   2  * (SLIK) SimpLIstic sKin functions
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2009 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13 #ifdef HAVE_CONFIG_H
  14 #  include "config.h"
  15 #endif
  16 #include "intl.h"
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21 #include <unistd.h>
  22 #include <sys/types.h>
  23 #include <dirent.h>
  24
  25 #include <gdk/gdk.h>
  26 #include <gtk/gtk.h>
  27 #include <gdk-pixbuf/gdk-pixbuf.h>
  28
  29 #include "main.h"
  30 #include "ui_tabcomp.h"
  31
  32 #include "history_list.h"
  33 #include "misc.h"       /* expand_tilde() */
  34 #include "ui_fileops.h"
  35 #include "ui_spinner.h"
  36 #include "ui_utildlg.h"
  37
  38 #include <gdk/gdkkeysyms.h> /* for key values */
  39
  40
  41 /* define this to enable a pop-up menu that shows possible matches
  42  * #define TAB_COMPLETION_ENABLE_POPUP_MENU
  43  */
  44 #define TAB_COMPLETION_ENABLE_POPUP_MENU 1
  45 #define TAB_COMP_POPUP_MAX 500
  46
  47 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
  48 #include "ui_menu.h"
  49 #endif
  50
  51
  52 /* ----------------------------------------------------------------
  53    Tab completion routines, can be connected to any gtkentry widget
  54    using the tab_completion_add_to_entry() function.
  55    Use remove_trailing_slash() to strip the trailing G_DIR_SEPARATOR.
  56    ----------------------------------------------------------------*/
  57
  58 typedef struct _TabCompData TabCompData;
  59 struct _TabCompData
  60 {
  61         GtkWidget *entry;
  62         gchar *dir_path;
  63         GList *file_list;
  64         void (*enter_func)(const gchar *, gpointer);
  65         void (*tab_func)(const gchar *, gpointer);
  66         void (*tab_append_func)(const gchar *, gpointer, gint);
  67
  68         gpointer enter_data;
  69         gpointer tab_data;
  70         gpointer tab_append_data;
  71
  72         GtkWidget *combo;
  73         gint has_history;
  74         gchar *history_key;
  75         gint history_levels;
  76
  77         FileDialog *fd;
  78         gchar *fd_title;
  79         gint fd_folders_only;
  80         GtkWidget *fd_button;
  81 };
  82
  83
  84 static void tab_completion_select_show(TabCompData *td);
  85
  86 static void tab_completion_free_list(TabCompData *td)
  87 {
  88         GList *list;
  89
  90         g_free(td->dir_path);
  91         td->dir_path = NULL;
  92
  93         list = td->file_list;
  94
  95         while (list)
  96                 {
  97                 g_free(list->data);
  98                 list = list->next;
  99                 }
 100
 101         g_list_free(td->file_list);
 102         td->file_list = NULL;
 103 }
 104
 105 static void tab_completion_read_dir(TabCompData *td, const gchar *path)
 106 {
 107         DIR *dp;
 108         struct dirent *dir;
 109         GList *list = NULL;
 110         gchar *pathl;
 111
 112         tab_completion_free_list(td);
 113
 114         pathl = path_from_utf8(path);
 115         dp = opendir(pathl);
 116         g_free(pathl);
 117         if (!dp)
 118                 {
 119                 /* dir not found */
 120                 return;
 121                 }
 122         while ((dir = readdir(dp)) != NULL)
 123                 {
 124                 gchar *name = dir->d_name;
 125                 if (strcmp(name, ".") != 0 && strcmp(name, "..") != 0)
 126                         {
 127                         gchar *abspath = g_build_filename(path, name, NULL);
 128
 129                         if (isdir(abspath))
 130                                 {
 131                                 gchar *dname = g_strconcat(name, G_DIR_SEPARATOR_S, NULL);
 132                                 list = g_list_prepend(list, path_to_utf8(dname));
 133                                 }
 134                         else
 135                                 {
 136                                 list = g_list_prepend(list, path_to_utf8(name));
 137                                 }
 138                         g_free(abspath);
 139                         }
 140                 }
 141         closedir(dp);
 142
 143         td->dir_path = g_strdup(path);
 144         td->file_list = list;
 145 }
 146
 147 static void tab_completion_destroy(GtkWidget *widget, gpointer data)
 148 {
 149         TabCompData *td = data;
 150
 151         tab_completion_free_list(td);
 152         g_free(td->history_key);
 153
 154         if (td->fd) file_dialog_close(td->fd);
 155         g_free(td->fd_title);
 156
 157         g_free(td);
 158 }
 159
 160 static gchar *tab_completion_get_text(TabCompData *td)
 161 {
 162         gchar *text;
 163
 164         text = g_strdup(gtk_entry_get_text(GTK_ENTRY(td->entry)));
 165
 166         if (text[0] == '~')
 167                 {
 168                 gchar *t = text;
 169                 text = expand_tilde(text);
 170                 g_free(t);
 171                 }
 172
 173         return text;
 174 }
 175
 176 static gint tab_completion_emit_enter_signal(TabCompData *td)
 177 {
 178         gchar *text;
 179         if (!td->enter_func) return FALSE;
 180
 181         text = tab_completion_get_text(td);
 182         td->enter_func(text, td->enter_data);
 183         g_free(text);
 184
 185         return TRUE;
 186 }
 187
 188 static void tab_completion_emit_tab_signal(TabCompData *td)
 189 {
 190         gchar *text;
 191         if (!td->tab_func) return;
 192
 193         text = tab_completion_get_text(td);
 194         td->tab_func(text, td->tab_data);
 195         g_free(text);
 196 }
 197
 198 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 199
 200 static gint tab_completion_popup_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 201 {
 202         TabCompData *td = data;
 203
 204         if (event->keyval == GDK_Tab ||
 205             event->keyval == GDK_BackSpace ||
 206             (event->keyval >= 0x20 && event->keyval <= 0xFF) )
 207                 {
 208                 if (event->keyval >= 0x20 && event->keyval <= 0xFF)
 209                         {
 210                         gchar buf[2];
 211                         gint p = -1;
 212
 213                         buf[0] = event->keyval;
 214                         buf[1] = '\0';
 215                         gtk_editable_insert_text(GTK_EDITABLE(td->entry), buf, 1, &p);
 216                         gtk_editable_set_position(GTK_EDITABLE(td->entry), -1);
 217                         }
 218
 219                 /*close the menu */
 220                 gtk_menu_popdown(GTK_MENU(widget));
 221                 /* doing this does not emit the "selection done" signal, unref it ourselves */
 222 #if GTK_CHECK_VERSION(2,12,0)
 223                 g_object_unref(widget);
 224 #else
 225                 gtk_widget_unref(widget);
 226 #endif
 227                 return TRUE;
 228                 }
 229
 230         return FALSE;
 231 }
 232
 233 static void tab_completion_popup_cb(GtkWidget *widget, gpointer data)
 234 {
 235         gchar *name = data;
 236         TabCompData *td;
 237         gchar *buf;
 238
 239         td = g_object_get_data(G_OBJECT(widget), "tab_completion_data");
 240         if (!td) return;
 241
 242         buf = g_build_filename(td->dir_path, name, NULL);
 243         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 244         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 245         g_free(buf);
 246
 247         tab_completion_emit_tab_signal(td);
 248 }
 249
 250 static void tab_completion_popup_pos_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
 251 {
 252         TabCompData *td = data;
 253         gint height;
 254         PangoLayout *layout;
 255         PangoRectangle strong_pos, weak_pos;
 256         gint length;
 257         gint xoffset, yoffset;
 258         GtkRequisition req;
 259         GdkScreen *screen;
 260         gint monitor_num;
 261         GdkRectangle monitor;
 262
 263         gdk_window_get_origin(td->entry->window, x, y);
 264
 265         screen = gtk_widget_get_screen(GTK_WIDGET(menu));
 266         monitor_num = gdk_screen_get_monitor_at_window(screen, td->entry->window);
 267         gdk_screen_get_monitor_geometry(screen, monitor_num, &monitor);
 268
 269         gtk_widget_size_request(GTK_WIDGET(menu), &req);
 270
 271         length = strlen(gtk_entry_get_text(GTK_ENTRY(td->entry)));
 272         gtk_entry_get_layout_offsets(GTK_ENTRY(td->entry), &xoffset, &yoffset);
 273
 274         layout = gtk_entry_get_layout(GTK_ENTRY(td->entry));
 275         pango_layout_get_cursor_pos(layout, length, &strong_pos, &weak_pos);
 276
 277         *x += strong_pos.x / PANGO_SCALE + xoffset;
 278
 279         height = MIN(td->entry->requisition.height, td->entry->allocation.height);
 280
 281         if (req.height > monitor.y + monitor.height - *y - height &&
 282             *y - monitor.y >  monitor.y + monitor.height - *y)
 283                 {
 284                 height = MIN(*y - monitor.y, req.height);
 285                 gtk_widget_set_size_request(GTK_WIDGET(menu), -1, height);
 286                 *y -= height;
 287                 }
 288         else
 289                 {
 290                 *y += height;
 291                 }
 292 }
 293
 294 static void tab_completion_popup_list(TabCompData *td, GList *list)
 295 {
 296         GtkWidget *menu;
 297         GList *work;
 298         GdkEvent *event;
 299         guint32 etime;
 300         gint ebutton;
 301         gint count = 0;
 302
 303         if (!list) return;
 304
 305 #if 0
 306         /*
 307          * well, the menu would be too long anyway...
 308          * (listing /dev causes gtk+ window allocation errors, -> too big a window)
 309          * this is why menu popups are disabled, this really should be a popup scrollable listview.
 310          */
 311         if (g_list_length(list) > 200) return;
 312 #endif
 313
 314         menu = popup_menu_short_lived();
 315
 316         work = list;
 317         while (work && count < TAB_COMP_POPUP_MAX)
 318                 {
 319                 gchar *name = work->data;
 320                 GtkWidget *item;
 321
 322                 item = menu_item_add_simple(menu, name, G_CALLBACK(tab_completion_popup_cb), name);
 323                 g_object_set_data(G_OBJECT(item), "tab_completion_data", td);
 324
 325                 work = work->next;
 326                 count++;
 327                 }
 328
 329         g_signal_connect(G_OBJECT(menu), "key_press_event",
 330                          G_CALLBACK(tab_completion_popup_key_press), td);
 331
 332         /* peek at the current event to get the time, etc. */
 333         event = gtk_get_current_event();
 334
 335         if (event && event->type == GDK_BUTTON_RELEASE)
 336                 {
 337                 ebutton = event->button.button;
 338                 }
 339         else
 340                 {
 341                 ebutton = 0;
 342                 }
 343
 344         if (event)
 345                 {
 346                 etime = gdk_event_get_time(event);
 347                 gdk_event_free(event);
 348                 }
 349         else
 350                 {
 351                 etime = 0;
 352                 }
 353
 354         gtk_menu_popup(GTK_MENU(menu), NULL, NULL,
 355                        tab_completion_popup_pos_cb, td, ebutton, etime);
 356 }
 357
 358 #ifndef CASE_SORT
 359 #define CASE_SORT strcmp
 360 #endif
 361
 362 static gint simple_sort(gconstpointer a, gconstpointer b)
 363 {
 364         return CASE_SORT((gchar *)a, (gchar *)b);
 365 }
 366
 367 #endif
 368
 369 static gint tab_completion_do(TabCompData *td)
 370 {
 371         const gchar *entry_text = gtk_entry_get_text(GTK_ENTRY(td->entry));
 372         const gchar *entry_file;
 373         gchar *entry_dir;
 374         gchar *ptr;
 375         gint home_exp = FALSE;
 376
 377         /* home dir expansion */
 378         if (entry_text[0] == '~')
 379                 {
 380                 entry_dir = expand_tilde(entry_text);
 381                 home_exp = TRUE;
 382                 }
 383         else
 384                 {
 385                 entry_dir = g_strdup(entry_text);
 386                 }
 387
 388         entry_file = filename_from_path(entry_text);
 389
 390         if (isfile(entry_dir))
 391                 {
 392                 if (home_exp)
 393                         {
 394                         gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 395                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 396                         }
 397                 g_free(entry_dir);
 398                 return home_exp;
 399                 }
 400
 401         if (isdir(entry_dir) && strcmp(entry_file, ".") != 0 && strcmp(entry_file, "..") != 0)
 402                 {
 403                 ptr = entry_dir + strlen(entry_dir) - 1;
 404                 if (ptr[0] == G_DIR_SEPARATOR)
 405                         {
 406                         if (home_exp)
 407                                 {
 408                                 gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 409                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 410                                 }
 411
 412                         tab_completion_read_dir(td, entry_dir);
 413                         td->file_list = g_list_sort(td->file_list, simple_sort);
 414                         if (td->file_list && !td->file_list->next)
 415                                 {
 416                                 gchar *buf;
 417                                 const gchar *file;
 418
 419                                 file = td->file_list->data;
 420                                 buf = g_build_filename(entry_dir, file, NULL);
 421                                 if (isdir(buf))
 422                                         {
 423                                         gchar *tmp = g_strconcat(buf, G_DIR_SEPARATOR_S, NULL);
 424                                         g_free(buf);
 425                                         buf = tmp;
 426                                         }
 427                                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 428                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 429                                 g_free(buf);
 430                                 }
 431
 432 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 433
 434                         else
 435                                 {
 436                                 tab_completion_popup_list(td, td->file_list);
 437                                 }
 438 #endif
 439
 440                         g_free(entry_dir);
 441                         return home_exp;
 442                         }
 443                 else
 444                         {
 445                         gchar *buf = g_strconcat(entry_dir, G_DIR_SEPARATOR_S, NULL);
 446                         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 447                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 448                         g_free(buf);
 449                         g_free(entry_dir);
 450                         return TRUE;
 451                         }
 452                 }
 453
 454         ptr = (gchar *)filename_from_path(entry_dir);
 455         if (ptr > entry_dir) ptr--;
 456         ptr[0] = '\0';
 457
 458         if (strlen(entry_dir) == 0)
 459                 {
 460                 g_free(entry_dir);
 461                 entry_dir = g_strdup(G_DIR_SEPARATOR_S); /* FIXME: win32 */
 462                 }
 463
 464         if (isdir(entry_dir))
 465                 {
 466                 GList *list;
 467                 GList *poss = NULL;
 468                 gint l = strlen(entry_file);
 469
 470                 if (!td->dir_path || !td->file_list || strcmp(td->dir_path, entry_dir) != 0)
 471                         {
 472                         tab_completion_read_dir(td, entry_dir);
 473                         }
 474
 475                 if (strcmp(entry_dir, G_DIR_SEPARATOR_S) == 0) entry_dir[0] = '\0'; /* FIXME: win32 */
 476
 477                 list = td->file_list;
 478                 while (list)
 479                         {
 480                         gchar *file = list->data;
 481                         if (strncmp(entry_file, file, l) == 0)
 482                                 {
 483                                 poss = g_list_prepend(poss, file);
 484                                 }
 485                         list = list->next;
 486                         }
 487
 488                 if (poss)
 489                         {
 490                         if (!poss->next)
 491                                 {
 492                                 gchar *file = poss->data;
 493                                 gchar *buf;
 494
 495                                 buf = g_build_filename(entry_dir, file, NULL);
 496
 497                                 if (isdir(buf))
 498                                         {
 499                                         gchar *tmp = g_strconcat(buf, G_DIR_SEPARATOR_S, NULL);
 500                                         g_free(buf);
 501                                         buf = tmp;
 502                                         }
 503                                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 504                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 505                                 g_free(buf);
 506                                 g_list_free(poss);
 507                                 g_free(entry_dir);
 508                                 return TRUE;
 509                                 }
 510                         else
 511                                 {
 512                                 gsize c = strlen(entry_file);
 513                                 gint done = FALSE;
 514                                 gchar *test_file = poss->data;
 515
 516                                 while (!done)
 517                                         {
 518                                         list = poss;
 519                                         if (!list) done = TRUE;
 520                                         while (list && !done)
 521                                                 {
 522                                                 gchar *file = list->data;
 523                                                 if (strlen(file) < c || strncmp(test_file, file, c) != 0)
 524                                                         {
 525                                                         done = TRUE;
 526                                                         }
 527                                                 list = list->next;
 528                                                 }
 529                                         c++;
 530                                         }
 531                                 c -= 2;
 532                                 if (c > 0)
 533                                         {
 534                                         gchar *file;
 535                                         gchar *buf;
 536                                         file = g_strdup(test_file);
 537                                         file[c] = '\0';
 538                                         buf = g_build_filename(entry_dir, file, NULL);
 539                                         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 540                                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 541
 542 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 543
 544                                         poss = g_list_sort(poss, simple_sort);
 545                                         tab_completion_popup_list(td, poss);
 546
 547 #endif
 548
 549                                         g_free(file);
 550                                         g_free(buf);
 551                                         g_list_free(poss);
 552                                         g_free(entry_dir);
 553                                         return TRUE;
 554                                         }
 555                                 }
 556                         g_list_free(poss);
 557                         }
 558                 }
 559
 560         g_free(entry_dir);
 561
 562         return FALSE;
 563 }
 564
 565 static gint tab_completion_key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 566 {
 567         TabCompData *td = data;
 568         gint stop_signal = FALSE;
 569
 570         switch (event->keyval)
 571                 {
 572                 case GDK_Tab:
 573                         if (!(event->state & GDK_CONTROL_MASK))
 574                                 {
 575                                 if (tab_completion_do(td))
 576                                         {
 577                                         tab_completion_emit_tab_signal(td);
 578                                         }
 579                                 stop_signal = TRUE;
 580                                 }
 581                         break;
 582                 case GDK_Return: case GDK_KP_Enter:
 583                         if (td->fd_button &&
 584                             (event->state & GDK_CONTROL_MASK))
 585                                 {
 586                                 tab_completion_select_show(td);
 587                                 stop_signal = TRUE;
 588                                 }
 589                         else if (tab_completion_emit_enter_signal(td))
 590                                 {
 591                                 stop_signal = TRUE;
 592                                 }
 593                         break;
 594                 default:
 595                         break;
 596                 }
 597
 598         if (stop_signal) g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
 599
 600         return (stop_signal);
 601 }
 602
 603 static void tab_completion_button_pressed(GtkWidget *widget, gpointer data)
 604 {
 605         TabCompData *td;
 606         GtkWidget *entry = data;
 607
 608         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 609
 610         if (!td) return;
 611
 612         if (!GTK_WIDGET_HAS_FOCUS(entry))
 613                 {
 614                 gtk_widget_grab_focus(entry);
 615                 }
 616
 617         if (tab_completion_do(td))
 618                 {
 619                 tab_completion_emit_tab_signal(td);
 620                 }
 621 }
 622
 623 static void tab_completion_button_size_allocate(GtkWidget *button, GtkAllocation *allocation, gpointer data)
 624 {
 625         GtkWidget *parent = data;
 626
 627         if (allocation->height > parent->allocation.height)
 628                 {
 629                 GtkAllocation button_allocation;
 630
 631                 button_allocation = button->allocation;
 632                 button_allocation.height = parent->allocation.height;
 633                 button_allocation.y = parent->allocation.y +
 634                         (parent->allocation.height - parent->allocation.height) / 2;
 635                 gtk_widget_size_allocate(button, &button_allocation);
 636                 }
 637 }
 638
 639 static GtkWidget *tab_completion_create_complete_button(GtkWidget *entry, GtkWidget *parent)
 640 {
 641         GtkWidget *button;
 642         GtkWidget *icon;
 643         GdkPixbuf *pixbuf;
 644
 645         button = gtk_button_new();
 646         GTK_WIDGET_UNSET_FLAGS(button, GTK_CAN_FOCUS);
 647         g_signal_connect(G_OBJECT(button), "size_allocate",
 648                          G_CALLBACK(tab_completion_button_size_allocate), parent);
 649         g_signal_connect(G_OBJECT(button), "clicked",
 650                          G_CALLBACK(tab_completion_button_pressed), entry);
 651
 652         pixbuf = gdk_pixbuf_new_from_inline(-1, icon_tabcomp, FALSE, NULL);
 653         icon = gtk_image_new_from_pixbuf(pixbuf);
 654         g_object_unref(pixbuf);
 655
 656         gtk_container_add(GTK_CONTAINER(button), icon);
 657         gtk_widget_show(icon);
 658
 659         return button;
 660 }
 661
 662 /*
 663  *----------------------------------------------------------------------------
 664  * public interface
 665  *----------------------------------------------------------------------------
 666  */
 667
 668 GtkWidget *tab_completion_new_with_history(GtkWidget **entry, const gchar *text,
 669                                            const gchar *history_key, gint max_levels,
 670                                            void (*enter_func)(const gchar *, gpointer), gpointer data)
 671 {
 672         GtkWidget *box;
 673         GtkWidget *combo;
 674         GtkWidget *combo_entry;
 675         GtkWidget *button;
 676         GList *work;
 677         TabCompData *td;
 678         gint n = 0;
 679
 680         box = gtk_hbox_new(FALSE, 0);
 681
 682         combo = gtk_combo_box_entry_new_text();
 683         gtk_box_pack_start(GTK_BOX(box), combo, TRUE, TRUE, 0);
 684         gtk_widget_show(combo);
 685
 686         combo_entry = GTK_BIN(combo)->child;
 687 #if 0
 688         gtk_combo_set_case_sensitive(GTK_COMBO(combo), TRUE);
 689         gtk_combo_set_use_arrows(GTK_COMBO(combo), FALSE);
 690 #endif
 691
 692         button = tab_completion_create_complete_button(combo_entry, combo);
 693         gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 0);
 694         gtk_widget_show(button);
 695
 696         tab_completion_add_to_entry(combo_entry, enter_func, data);
 697
 698         td = g_object_get_data(G_OBJECT(combo_entry), "tab_completion_data");
 699         if (!td) return NULL; /* this should never happen! */
 700
 701         td->combo = combo;
 702         td->has_history = TRUE;
 703         td->history_key = g_strdup(history_key);
 704         td->history_levels = max_levels;
 705
 706         work = history_list_get_by_key(td->history_key);
 707
 708         work = history_list_get_by_key(history_key);
 709         while (work)
 710                 {
 711                 gtk_combo_box_append_text(GTK_COMBO_BOX(combo), (gchar *)work->data);
 712                 work = work->next;
 713                 n++;
 714                 }
 715
 716         if (text)
 717                 {
 718                 gtk_entry_set_text(GTK_ENTRY(combo_entry), text);
 719                 }
 720         else if (n > 0)
 721                 {
 722                 gtk_combo_box_set_active(GTK_COMBO_BOX(combo), 0);
 723                 }
 724
 725         if (entry) *entry = combo_entry;
 726         return box;
 727 }
 728
 729 const gchar *tab_completion_set_to_last_history(GtkWidget *entry)
 730 {
 731         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 732         const gchar *buf;
 733
 734         if (!td || !td->has_history) return NULL;
 735
 736         buf = history_list_find_last_path_by_key(td->history_key);
 737         if (buf)
 738                 {
 739                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 740                 }
 741
 742         return buf;
 743 }
 744
 745 void tab_completion_append_to_history(GtkWidget *entry, const gchar *path)
 746 {
 747         TabCompData *td;
 748         GtkTreeModel *store;
 749         GList *work;
 750         gint n = 0;
 751
 752         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 753
 754         if (!path) return;
 755
 756         if (!td || !td->has_history) return;
 757
 758         history_list_add_to_key(td->history_key, path, td->history_levels);
 759
 760         gtk_combo_box_set_active(GTK_COMBO_BOX(td->combo), -1);
 761
 762         store = gtk_combo_box_get_model(GTK_COMBO_BOX(td->combo));
 763         gtk_list_store_clear(GTK_LIST_STORE(store));
 764
 765         work = history_list_get_by_key(td->history_key);
 766         while (work)
 767                 {
 768                 gtk_combo_box_append_text(GTK_COMBO_BOX(td->combo), (gchar *)work->data);
 769                 work = work->next;
 770                 n++;
 771                 }
 772
 773         if (td->tab_append_func) {
 774                 td->tab_append_func(path, td->tab_append_data, n);
 775         }
 776 }
 777
 778 GtkWidget *tab_completion_new(GtkWidget **entry, const gchar *text,
 779                               void (*enter_func)(const gchar *, gpointer), gpointer data)
 780 {
 781         GtkWidget *hbox;
 782         GtkWidget *button;
 783         GtkWidget *newentry;
 784
 785         hbox = gtk_hbox_new(FALSE, 0);
 786
 787         newentry = gtk_entry_new();
 788         if (text) gtk_entry_set_text(GTK_ENTRY(newentry), text);
 789         gtk_box_pack_start(GTK_BOX(hbox), newentry, TRUE, TRUE, 0);
 790         gtk_widget_show(newentry);
 791
 792         button = tab_completion_create_complete_button(newentry, newentry);
 793         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
 794         gtk_widget_show(button);
 795
 796         tab_completion_add_to_entry(newentry, enter_func, data);
 797
 798         if (entry) *entry = newentry;
 799         return hbox;
 800 }
 801
 802 void tab_completion_add_to_entry(GtkWidget *entry, void (*enter_func)(const gchar *, gpointer), gpointer data)
 803 {
 804         TabCompData *td;
 805         if (!entry)
 806                 {
 807                 log_printf("Tab completion error: entry != NULL\n");
 808                 return;
 809                 }
 810
 811         td = g_new0(TabCompData, 1);
 812
 813         td->entry = entry;
 814         td->enter_func = enter_func;
 815         td->enter_data = data;
 816
 817         g_object_set_data(G_OBJECT(td->entry), "tab_completion_data", td);
 818
 819         g_signal_connect(G_OBJECT(entry), "key_press_event",
 820                          G_CALLBACK(tab_completion_key_pressed), td);
 821         g_signal_connect(G_OBJECT(entry), "destroy",
 822                          G_CALLBACK(tab_completion_destroy), td);
 823 }
 824
 825 void tab_completion_add_tab_func(GtkWidget *entry, void (*tab_func)(const gchar *, gpointer), gpointer data)
 826 {
 827         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 828
 829         if (!td) return;
 830
 831         td->tab_func = tab_func;
 832         td->tab_data = data;
 833 }
 834
 835 /* Add a callback function called when a new entry is appended to the list */
 836 void tab_completion_add_append_func(GtkWidget *entry, void (*tab_append_func)(const gchar *, gpointer, gint), gpointer data)
 837 {
 838         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 839
 840         if (!td) return;
 841
 842         td->tab_append_func = tab_append_func;
 843         td->tab_append_data = data;
 844 }
 845
 846 gchar *remove_trailing_slash(const gchar *path)
 847 {
 848         gint l;
 849
 850         if (!path) return NULL;
 851
 852         l = strlen(path);
 853         while (l > 1 && path[l - 1] == G_DIR_SEPARATOR) l--;
 854
 855         return g_strndup(path, l);
 856 }
 857
 858 static void tab_completion_select_cancel_cb(FileDialog *fd, gpointer data)
 859 {
 860         TabCompData *td = data;
 861
 862         td->fd = NULL;
 863         file_dialog_close(fd);
 864 }
 865
 866 static void tab_completion_select_ok_cb(FileDialog *fd, gpointer data)
 867 {
 868         TabCompData *td = data;
 869
 870         gtk_entry_set_text(GTK_ENTRY(td->entry), gtk_entry_get_text(GTK_ENTRY(fd->entry)));
 871
 872         tab_completion_select_cancel_cb(fd, data);
 873
 874         tab_completion_emit_enter_signal(td);
 875 }
 876
 877 static void tab_completion_select_show(TabCompData *td)
 878 {
 879         const gchar *title;
 880         const gchar *path;
 881
 882         if (td->fd)
 883                 {
 884                 gtk_window_present(GTK_WINDOW(GENERIC_DIALOG(td->fd)->dialog));
 885                 return;
 886                 }
 887
 888         title = (td->fd_title) ? td->fd_title : _("Select path");
 889         td->fd = file_dialog_new(title, "select_path", td->entry,
 890                                  tab_completion_select_cancel_cb, td);
 891         file_dialog_add_button(td->fd, GTK_STOCK_OK, NULL,
 892                                  tab_completion_select_ok_cb, TRUE);
 893
 894         generic_dialog_add_message(GENERIC_DIALOG(td->fd), NULL, title, NULL);
 895
 896         path = gtk_entry_get_text(GTK_ENTRY(td->entry));
 897         if (strlen(path) == 0) path = NULL;
 898         if (td->fd_folders_only)
 899                 {
 900                 file_dialog_add_path_widgets(td->fd, NULL, path, td->history_key, NULL, NULL);
 901                 }
 902         else
 903                 {
 904                 file_dialog_add_path_widgets(td->fd, NULL, path, td->history_key, "*", _("All files"));
 905                 }
 906
 907         gtk_widget_show(GENERIC_DIALOG(td->fd)->dialog);
 908 }
 909
 910 static void tab_completion_select_pressed(GtkWidget *widget, gpointer data)
 911 {
 912         TabCompData *td = data;
 913
 914         tab_completion_select_show(td);
 915 }
 916
 917 void tab_completion_add_select_button(GtkWidget *entry, const gchar *title, gint folders_only)
 918 {
 919         TabCompData *td;
 920         GtkWidget *parent;
 921         GtkWidget *hbox;
 922
 923         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 924
 925         if (!td) return;
 926
 927         g_free(td->fd_title);
 928         td->fd_title = g_strdup(title);
 929         td->fd_folders_only = folders_only;
 930
 931         if (td->fd_button) return;
 932
 933         parent = (td->combo) ? td->combo : td->entry;
 934
 935         hbox = gtk_widget_get_parent(parent);
 936         if (!GTK_IS_BOX(hbox)) return;
 937
 938         td->fd_button = gtk_button_new_with_label("...");
 939         g_signal_connect(G_OBJECT(td->fd_button), "size_allocate",
 940                          G_CALLBACK(tab_completion_button_size_allocate), parent);
 941         g_signal_connect(G_OBJECT(td->fd_button), "clicked",
 942                          G_CALLBACK(tab_completion_select_pressed), td);
 943
 944         gtk_box_pack_start(GTK_BOX(hbox), td->fd_button, FALSE, FALSE, 0);
 945
 946         gtk_widget_show(td->fd_button);
 947 }
 948 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */