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