src/ui_tabcomp.c

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include <config.h>
  23 #include "intl.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <sys/types.h>
  30 #include <dirent.h>
  31
  32 #include <gdk/gdk.h>
  33 #include <gtk/gtk.h>
  34 #include <gdk-pixbuf/gdk-pixbuf.h>
  35
  36 #include "main.h"
  37 #include "ui_tabcomp.h"
  38
  39 #include "history_list.h"
  40 #include "misc.h"       /* expand_tilde() */
  41 #include "ui_fileops.h"
  42 #include "ui_spinner.h"
  43 #include "ui_utildlg.h"
  44
  45 #include <gdk/gdkkeysyms.h> /* for key values */
  46
  47
  48 /* define this to enable a pop-up menu that shows possible matches
  49  * #define TAB_COMPLETION_ENABLE_POPUP_MENU
  50  */
  51 #define TAB_COMPLETION_ENABLE_POPUP_MENU 1
  52 #define TAB_COMP_POPUP_MAX 1000
  53
  54 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
  55 #include "ui_menu.h"
  56 #endif
  57
  58
  59 /**
  60  * @file
  61  * ----------------------------------------------------------------
  62  * Tab completion routines, can be connected to any gtkentry widget
  63  * using the tab_completion_add_to_entry() function.
  64  *
  65  * Use remove_trailing_slash() to strip the trailing G_DIR_SEPARATOR.
  66  *
  67  * ----------------------------------------------------------------
  68  */
  69
  70 typedef struct _TabCompData TabCompData;
  71 struct _TabCompData
  72 {
  73         GtkWidget *entry;
  74         gchar *dir_path;
  75         GList *file_list;
  76         void (*enter_func)(const gchar *, gpointer);
  77         void (*tab_func)(const gchar *, gpointer);
  78         void (*tab_append_func)(const gchar *, gpointer, gint);
  79
  80         gpointer enter_data;
  81         gpointer tab_data;
  82         gpointer tab_append_data;
  83
  84         GtkWidget *combo;
  85         gboolean has_history;
  86         gchar *history_key;
  87         gint history_levels;
  88
  89         FileDialog *fd;
  90         gchar *fd_title;
  91         gboolean fd_folders_only;
  92         GtkWidget *fd_button;
  93         gchar *filter;
  94         gchar *filter_desc;
  95
  96         guint choices;
  97 };
  98
  99
 100 static void tab_completion_select_show(TabCompData *td);
 101 static gint tab_completion_do(TabCompData *td);
 102
 103 static void tab_completion_free_list(TabCompData *td)
 104 {
 105         GList *list;
 106
 107         g_free(td->dir_path);
 108         td->dir_path = NULL;
 109
 110         list = td->file_list;
 111
 112         while (list)
 113                 {
 114                 g_free(list->data);
 115                 list = list->next;
 116                 }
 117
 118         g_list_free(td->file_list);
 119         td->file_list = NULL;
 120 }
 121
 122 static void tab_completion_read_dir(TabCompData *td, const gchar *path)
 123 {
 124         DIR *dp;
 125         struct dirent *dir;
 126         GList *list = NULL;
 127         gchar *pathl;
 128
 129         tab_completion_free_list(td);
 130
 131         pathl = path_from_utf8(path);
 132         dp = opendir(pathl);
 133         if (!dp)
 134                 {
 135                 /* dir not found */
 136                 g_free(pathl);
 137                 return;
 138                 }
 139         while ((dir = readdir(dp)) != NULL)
 140                 {
 141                 gchar *name = dir->d_name;
 142                 if (strcmp(name, ".") != 0 && strcmp(name, "..") != 0 &&
 143                                                 (name[0] != '.' || options->file_filter.show_hidden_files))
 144                         {
 145                         gchar *abspath = g_build_filename(pathl, name, NULL);
 146
 147                         if (g_file_test(abspath, G_FILE_TEST_IS_DIR))
 148                                 {
 149                                 gchar *dname = g_strconcat(name, G_DIR_SEPARATOR_S, NULL);
 150                                 list = g_list_prepend(list, path_to_utf8(dname));
 151                                 g_free(dname);
 152                                 }
 153                         else
 154                                 {
 155                                 list = g_list_prepend(list, path_to_utf8(name));
 156                                 }
 157                         g_free(abspath);
 158                         }
 159                 }
 160         closedir(dp);
 161
 162         td->dir_path = g_strdup(path);
 163         td->file_list = list;
 164         g_free(pathl);
 165 }
 166
 167 static void tab_completion_destroy(GtkWidget *UNUSED(widget), gpointer data)
 168 {
 169         TabCompData *td = data;
 170
 171         tab_completion_free_list(td);
 172         g_free(td->history_key);
 173
 174         if (td->fd) file_dialog_close(td->fd);
 175         g_free(td->fd_title);
 176
 177         g_free(td->filter);
 178         g_free(td->filter_desc);
 179
 180         g_free(td);
 181 }
 182
 183 static gchar *tab_completion_get_text(TabCompData *td)
 184 {
 185         gchar *text;
 186
 187         text = g_strdup(gtk_entry_get_text(GTK_ENTRY(td->entry)));
 188
 189         if (text[0] == '~')
 190                 {
 191                 gchar *t = text;
 192                 text = expand_tilde(text);
 193                 g_free(t);
 194                 }
 195
 196         return text;
 197 }
 198
 199 static gboolean tab_completion_emit_enter_signal(TabCompData *td)
 200 {
 201         gchar *text;
 202         if (!td->enter_func) return FALSE;
 203
 204         text = tab_completion_get_text(td);
 205         td->enter_func(text, td->enter_data);
 206         g_free(text);
 207
 208         return TRUE;
 209 }
 210
 211 static void tab_completion_emit_tab_signal(TabCompData *td)
 212 {
 213         gchar *text;
 214         if (!td->tab_func) return;
 215
 216         text = tab_completion_get_text(td);
 217         td->tab_func(text, td->tab_data);
 218         g_free(text);
 219 }
 220
 221 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 222 void tab_completion_iter_menu_items(GtkWidget *widget, gpointer data)
 223 {
 224         TabCompData *td = data;
 225         GtkWidget *child;
 226
 227         if (!gtk_widget_get_visible(widget)) return;
 228
 229         child = gtk_bin_get_child(GTK_BIN(widget));
 230         if (GTK_IS_LABEL(child)) {
 231                 const gchar *text = gtk_label_get_text(GTK_LABEL(child));
 232                 const gchar *entry_text = gtk_entry_get_text(GTK_ENTRY(td->entry));
 233                 const gchar *prefix = filename_from_path(entry_text);
 234                 guint prefix_len = strlen(prefix);
 235
 236                 if (strlen(text) < prefix_len || strncmp(text, prefix, prefix_len))
 237                         {
 238                         /* Hide menu items not matching */
 239                         gtk_widget_hide(widget);
 240                         }
 241                 else
 242                         {
 243                         /* Count how many choices are left in the menu */
 244                         td->choices++;
 245                         }
 246         }
 247 }
 248
 249 static gboolean tab_completion_popup_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 250 {
 251         TabCompData *td = data;
 252
 253         if (event->keyval == GDK_KEY_Tab ||
 254             event->keyval == GDK_KEY_BackSpace ||
 255             (event->keyval >= 0x20 && event->keyval <= 0xFF) )
 256                 {
 257                 if (event->keyval >= 0x20 && event->keyval <= 0xFF)
 258                         {
 259                         gchar buf[2];
 260                         gint p = -1;
 261
 262                         buf[0] = event->keyval;
 263                         buf[1] = '\0';
 264                         gtk_editable_insert_text(GTK_EDITABLE(td->entry), buf, 1, &p);
 265                         gtk_editable_set_position(GTK_EDITABLE(td->entry), -1);
 266
 267                         /* Reduce the number of entries in the menu */
 268                         td->choices = 0;
 269                         gtk_container_foreach(GTK_CONTAINER(widget), tab_completion_iter_menu_items, (gpointer) td);
 270                         if (td->choices > 1) return TRUE; /* multiple choices */
 271                         if (td->choices > 0) tab_completion_do(td); /* one choice */
 272                         }
 273
 274                 /* close the menu */
 275                 gtk_menu_popdown(GTK_MENU(widget));
 276                 /* doing this does not emit the "selection done" signal, unref it ourselves */
 277                 g_object_unref(widget);
 278                 return TRUE;
 279                 }
 280
 281         return FALSE;
 282 }
 283
 284 static void tab_completion_popup_cb(GtkWidget *widget, gpointer data)
 285 {
 286         gchar *name = data;
 287         TabCompData *td;
 288         gchar *buf;
 289
 290         td = g_object_get_data(G_OBJECT(widget), "tab_completion_data");
 291         if (!td) return;
 292
 293         buf = g_build_filename(td->dir_path, name, NULL);
 294         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 295         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 296         g_free(buf);
 297
 298         tab_completion_emit_tab_signal(td);
 299 }
 300
 301 static void tab_completion_popup_list(TabCompData *td, GList *list)
 302 {
 303         GtkWidget *menu;
 304         GList *work;
 305         gint count = 0;
 306
 307         if (!list) return;
 308
 309 #if 0
 310         /*
 311          * well, the menu would be too long anyway...
 312          * (listing /dev causes gtk+ window allocation errors, -> too big a window)
 313          * this is why menu popups are disabled, this really should be a popup scrollable listview.
 314          */
 315         if (g_list_length(list) > 200) return;
 316 #endif
 317
 318         menu = popup_menu_short_lived();
 319
 320         work = list;
 321         while (work && count < TAB_COMP_POPUP_MAX)
 322                 {
 323                 gchar *name = work->data;
 324                 GtkWidget *item;
 325
 326                 item = menu_item_add_simple(menu, name, G_CALLBACK(tab_completion_popup_cb), name);
 327                 g_object_set_data(G_OBJECT(item), "tab_completion_data", td);
 328
 329                 work = work->next;
 330                 count++;
 331                 }
 332
 333         g_signal_connect(G_OBJECT(menu), "key_press_event",
 334                          G_CALLBACK(tab_completion_popup_key_press), td);
 335
 336         gtk_menu_popup_at_widget(GTK_MENU(menu), td->entry, GDK_GRAVITY_NORTH_EAST, GDK_GRAVITY_NORTH, NULL);
 337 }
 338
 339 #ifndef CASE_SORT
 340 #define CASE_SORT strcmp
 341 #endif
 342
 343 static gint simple_sort(gconstpointer a, gconstpointer b)
 344 {
 345         return CASE_SORT((gchar *)a, (gchar *)b);
 346 }
 347
 348 #endif
 349
 350 static gboolean tab_completion_do(TabCompData *td)
 351 {
 352         const gchar *entry_text = gtk_entry_get_text(GTK_ENTRY(td->entry));
 353         const gchar *entry_file;
 354         gchar *entry_dir;
 355         gchar *ptr;
 356         gboolean home_exp = FALSE;
 357
 358         if (entry_text[0] == '\0')
 359                 {
 360                 entry_dir = g_strdup(G_DIR_SEPARATOR_S); /** @FIXME root directory win32 */
 361                 gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 362                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 363                 g_free(entry_dir);
 364                 return FALSE;
 365                 }
 366
 367         /* home dir expansion */
 368         if (entry_text[0] == '~')
 369                 {
 370                 entry_dir = expand_tilde(entry_text);
 371                 home_exp = TRUE;
 372                 }
 373         else
 374                 {
 375                 entry_dir = g_strdup(entry_text);
 376                 }
 377
 378         if (isfile(entry_dir))
 379                 {
 380                 if (home_exp)
 381                         {
 382                         gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 383                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 384                         }
 385                 g_free(entry_dir);
 386                 return home_exp;
 387                 }
 388
 389         entry_file = filename_from_path(entry_text);
 390
 391         if (isdir(entry_dir) && strcmp(entry_file, ".") != 0 && strcmp(entry_file, "..") != 0)
 392                 {
 393                 ptr = entry_dir + strlen(entry_dir) - 1;
 394                 if (ptr[0] == G_DIR_SEPARATOR)
 395                         {
 396                         if (home_exp)
 397                                 {
 398                                 gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 399                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 400                                 }
 401
 402                         tab_completion_read_dir(td, entry_dir);
 403                         td->file_list = g_list_sort(td->file_list, simple_sort);
 404                         if (td->file_list && !td->file_list->next)
 405                                 {
 406                                 gchar *buf;
 407                                 const gchar *file;
 408
 409                                 file = td->file_list->data;
 410                                 buf = g_build_filename(entry_dir, file, NULL);
 411                                 if (isdir(buf))
 412                                         {
 413                                         gchar *tmp = g_strconcat(buf, G_DIR_SEPARATOR_S, NULL);
 414                                         g_free(buf);
 415                                         buf = tmp;
 416                                         }
 417                                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 418                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 419                                 g_free(buf);
 420                                 }
 421
 422 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 423
 424                         else
 425                                 {
 426                                 tab_completion_popup_list(td, td->file_list);
 427                                 }
 428 #endif
 429
 430                         g_free(entry_dir);
 431                         return home_exp;
 432                         }
 433                 else
 434                         {
 435                         gchar *buf = g_strconcat(entry_dir, G_DIR_SEPARATOR_S, NULL);
 436                         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 437                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 438                         g_free(buf);
 439                         g_free(entry_dir);
 440                         return TRUE;
 441                         }
 442                 }
 443
 444         ptr = (gchar *)filename_from_path(entry_dir);
 445         if (ptr > entry_dir) ptr--;
 446         ptr[0] = '\0';
 447
 448         if (strlen(entry_dir) == 0)
 449                 {
 450                 g_free(entry_dir);
 451                 entry_dir = g_strdup(G_DIR_SEPARATOR_S); /** @FIXME win32 */
 452                 }
 453
 454         if (isdir(entry_dir))
 455                 {
 456                 GList *list;
 457                 GList *poss = NULL;
 458                 gint l = strlen(entry_file);
 459
 460                 if (!td->dir_path || !td->file_list || strcmp(td->dir_path, entry_dir) != 0)
 461                         {
 462                         tab_completion_read_dir(td, entry_dir);
 463                         }
 464
 465                 list = td->file_list;
 466                 while (list)
 467                         {
 468                         gchar *file = list->data;
 469                         if (strncmp(entry_file, file, l) == 0)
 470                                 {
 471                                 poss = g_list_prepend(poss, file);
 472                                 }
 473                         list = list->next;
 474                         }
 475
 476                 if (poss)
 477                         {
 478                         if (!poss->next)
 479                                 {
 480                                 gchar *file = poss->data;
 481                                 gchar *buf;
 482
 483                                 buf = g_build_filename(entry_dir, file, NULL);
 484                                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 485                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 486                                 g_free(buf);
 487                                 g_list_free(poss);
 488                                 g_free(entry_dir);
 489                                 return TRUE;
 490                                 }
 491                         else
 492                                 {
 493                                 gsize c = strlen(entry_file);
 494                                 gboolean done = FALSE;
 495                                 gchar *test_file = poss->data;
 496
 497                                 while (!done)
 498                                         {
 499                                         list = poss;
 500                                         if (!list) done = TRUE;
 501                                         while (list && !done)
 502                                                 {
 503                                                 gchar *file = list->data;
 504                                                 if (strlen(file) < c || strncmp(test_file, file, c) != 0)
 505                                                         {
 506                                                         done = TRUE;
 507                                                         }
 508                                                 list = list->next;
 509                                                 }
 510                                         c++;
 511                                         }
 512                                 c -= 2;
 513                                 if (c > 0)
 514                                         {
 515                                         gchar *file;
 516                                         gchar *buf;
 517                                         file = g_strdup(test_file);
 518                                         file[c] = '\0';
 519                                         buf = g_build_filename(entry_dir, file, NULL);
 520                                         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 521                                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 522
 523 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 524
 525                                         poss = g_list_sort(poss, simple_sort);
 526                                         tab_completion_popup_list(td, poss);
 527
 528 #endif
 529
 530                                         g_free(file);
 531                                         g_free(buf);
 532                                         g_list_free(poss);
 533                                         g_free(entry_dir);
 534                                         return TRUE;
 535                                         }
 536                                 }
 537                         g_list_free(poss);
 538                         }
 539                 }
 540
 541         g_free(entry_dir);
 542
 543         return FALSE;
 544 }
 545
 546 static gboolean tab_completion_key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 547 {
 548         TabCompData *td = data;
 549         gboolean stop_signal = FALSE;
 550
 551         switch (event->keyval)
 552                 {
 553                 case GDK_KEY_Tab:
 554                         if (!(event->state & GDK_CONTROL_MASK))
 555                                 {
 556                                 if (tab_completion_do(td))
 557                                         {
 558                                         tab_completion_emit_tab_signal(td);
 559                                         }
 560                                 stop_signal = TRUE;
 561                                 }
 562                         break;
 563                 case GDK_KEY_Return: case GDK_KEY_KP_Enter:
 564                         if (td->fd_button &&
 565                             (event->state & GDK_CONTROL_MASK))
 566                                 {
 567                                 tab_completion_select_show(td);
 568                                 stop_signal = TRUE;
 569                                 }
 570                         else if (tab_completion_emit_enter_signal(td))
 571                                 {
 572                                 stop_signal = TRUE;
 573                                 }
 574                         break;
 575                 default:
 576                         break;
 577                 }
 578
 579         if (stop_signal) g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
 580
 581         return (stop_signal);
 582 }
 583
 584 static void tab_completion_button_pressed(GtkWidget *UNUSED(widget), gpointer data)
 585 {
 586         TabCompData *td;
 587         GtkWidget *entry = data;
 588
 589         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 590
 591         if (!td) return;
 592
 593         if (!gtk_widget_has_focus(entry))
 594                 {
 595                 gtk_widget_grab_focus(entry);
 596                 }
 597
 598         if (tab_completion_do(td))
 599                 {
 600                 tab_completion_emit_tab_signal(td);
 601                 }
 602 }
 603
 604 static void tab_completion_button_size_allocate(GtkWidget *button, GtkAllocation *allocation, gpointer data)
 605 {
 606         GtkWidget *parent = data;
 607         GtkAllocation parent_allocation;
 608         gtk_widget_get_allocation(parent, &parent_allocation);
 609
 610         if (allocation->height > parent_allocation.height)
 611                 {
 612                 GtkAllocation button_allocation;
 613
 614                 gtk_widget_get_allocation(button, &button_allocation);
 615                 button_allocation.height = parent_allocation.height;
 616                 button_allocation.y = parent_allocation.y +
 617                         (parent_allocation.height - parent_allocation.height) / 2;
 618                 gtk_widget_size_allocate(button, &button_allocation);
 619                 }
 620 }
 621
 622 static GtkWidget *tab_completion_create_complete_button(GtkWidget *entry, GtkWidget *parent)
 623 {
 624         GtkWidget *button;
 625         GtkWidget *icon;
 626         GdkPixbuf *pixbuf;
 627
 628         button = gtk_button_new();
 629         gtk_widget_set_can_focus(button, FALSE);
 630         g_signal_connect(G_OBJECT(button), "size_allocate",
 631                          G_CALLBACK(tab_completion_button_size_allocate), parent);
 632         g_signal_connect(G_OBJECT(button), "clicked",
 633                          G_CALLBACK(tab_completion_button_pressed), entry);
 634
 635         pixbuf = gdk_pixbuf_new_from_inline(-1, icon_tabcomp, FALSE, NULL);
 636         icon = gtk_image_new_from_pixbuf(pixbuf);
 637         g_object_unref(pixbuf);
 638
 639         gtk_container_add(GTK_CONTAINER(button), icon);
 640         gtk_widget_show(icon);
 641
 642         return button;
 643 }
 644
 645 /*
 646  *----------------------------------------------------------------------------
 647  * public interface
 648  *----------------------------------------------------------------------------
 649  */
 650
 651 GtkWidget *tab_completion_new_with_history(GtkWidget **entry, const gchar *text,
 652                                            const gchar *history_key, gint max_levels,
 653                                            void (*enter_func)(const gchar *, gpointer), gpointer data)
 654 {
 655         GtkWidget *box;
 656         GtkWidget *combo;
 657         GtkWidget *combo_entry;
 658         GtkWidget *button;
 659         GList *work;
 660         TabCompData *td;
 661         gint n = 0;
 662
 663         box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 664
 665         combo = gtk_combo_box_text_new_with_entry();
 666         gtk_box_pack_start(GTK_BOX(box), combo, TRUE, TRUE, 0);
 667         gtk_widget_show(combo);
 668
 669         combo_entry = gtk_bin_get_child(GTK_BIN(combo));
 670
 671         button = tab_completion_create_complete_button(combo_entry, combo);
 672         gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 0);
 673         gtk_widget_show(button);
 674
 675         tab_completion_add_to_entry(combo_entry, enter_func, NULL, NULL, data);
 676
 677         td = g_object_get_data(G_OBJECT(combo_entry), "tab_completion_data");
 678         if (!td) return NULL; /* this should never happen! */
 679
 680         td->combo = combo;
 681         td->has_history = TRUE;
 682         td->history_key = g_strdup(history_key);
 683         td->history_levels = max_levels;
 684
 685         work = history_list_get_by_key(td->history_key);
 686
 687         work = history_list_get_by_key(history_key);
 688         while (work)
 689                 {
 690                 gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(combo), (gchar *)work->data);
 691                 work = work->next;
 692                 n++;
 693                 }
 694
 695         if (text)
 696                 {
 697                 gtk_entry_set_text(GTK_ENTRY(combo_entry), text);
 698                 }
 699         else if (n > 0)
 700                 {
 701                 gtk_combo_box_set_active(GTK_COMBO_BOX(combo), 0);
 702                 }
 703
 704         if (entry) *entry = combo_entry;
 705         return box;
 706 }
 707
 708 const gchar *tab_completion_set_to_last_history(GtkWidget *entry)
 709 {
 710         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 711         const gchar *buf;
 712
 713         if (!td || !td->has_history) return NULL;
 714
 715         buf = history_list_find_last_path_by_key(td->history_key);
 716         if (buf)
 717                 {
 718                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 719                 }
 720
 721         return buf;
 722 }
 723
 724 void tab_completion_append_to_history(GtkWidget *entry, const gchar *path)
 725 {
 726         TabCompData *td;
 727         GtkTreeModel *store;
 728         GList *work;
 729         gint n = 0;
 730
 731         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 732
 733         if (!path) return;
 734
 735         if (!td || !td->has_history) return;
 736
 737         history_list_add_to_key(td->history_key, path, td->history_levels);
 738
 739         gtk_combo_box_set_active(GTK_COMBO_BOX(td->combo), -1);
 740
 741         store = gtk_combo_box_get_model(GTK_COMBO_BOX(td->combo));
 742         gtk_list_store_clear(GTK_LIST_STORE(store));
 743
 744         work = history_list_get_by_key(td->history_key);
 745         while (work)
 746                 {
 747                 gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(td->combo), (gchar *)work->data);
 748                 work = work->next;
 749                 n++;
 750                 }
 751
 752         if (td->tab_append_func) {
 753                 td->tab_append_func(path, td->tab_append_data, n);
 754         }
 755 }
 756
 757 GtkWidget *tab_completion_new(GtkWidget **entry, const gchar *text,
 758                               void (*enter_func)(const gchar *, gpointer), const gchar *filter, const gchar *filter_desc, gpointer data)
 759 {
 760         GtkWidget *hbox;
 761         GtkWidget *button;
 762         GtkWidget *newentry;
 763
 764         hbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 765
 766         newentry = gtk_entry_new();
 767         if (text) gtk_entry_set_text(GTK_ENTRY(newentry), text);
 768         gtk_box_pack_start(GTK_BOX(hbox), newentry, TRUE, TRUE, 0);
 769         gtk_widget_show(newentry);
 770
 771         button = tab_completion_create_complete_button(newentry, newentry);
 772         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
 773         gtk_widget_show(button);
 774
 775         tab_completion_add_to_entry(newentry, enter_func, filter, filter_desc, data);
 776         if (entry) *entry = newentry;
 777         return hbox;
 778 }
 779
 780 void tab_completion_add_to_entry(GtkWidget *entry, void (*enter_func)(const gchar *, gpointer), const gchar *filter, const gchar *filter_desc, gpointer data)
 781 {
 782         TabCompData *td;
 783         if (!entry)
 784                 {
 785                 log_printf("Tab completion error: entry != NULL\n");
 786                 return;
 787                 }
 788
 789         td = g_new0(TabCompData, 1);
 790
 791         td->entry = entry;
 792         td->enter_func = enter_func;
 793         td->enter_data = data;
 794         td->filter = g_strdup(filter);
 795         td->filter_desc = g_strdup(filter_desc);
 796
 797         g_object_set_data(G_OBJECT(td->entry), "tab_completion_data", td);
 798
 799         g_signal_connect(G_OBJECT(entry), "key_press_event",
 800                          G_CALLBACK(tab_completion_key_pressed), td);
 801         g_signal_connect(G_OBJECT(entry), "destroy",
 802                          G_CALLBACK(tab_completion_destroy), td);
 803 }
 804
 805 void tab_completion_add_tab_func(GtkWidget *entry, void (*tab_func)(const gchar *, gpointer), gpointer data)
 806 {
 807         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 808
 809         if (!td) return;
 810
 811         td->tab_func = tab_func;
 812         td->tab_data = data;
 813 }
 814
 815 /* Add a callback function called when a new entry is appended to the list */
 816 void tab_completion_add_append_func(GtkWidget *entry, void (*tab_append_func)(const gchar *, gpointer, gint), gpointer data)
 817 {
 818         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 819
 820         if (!td) return;
 821
 822         td->tab_append_func = tab_append_func;
 823         td->tab_append_data = data;
 824 }
 825
 826 gchar *remove_trailing_slash(const gchar *path)
 827 {
 828         gint l;
 829
 830         if (!path) return NULL;
 831
 832         l = strlen(path);
 833         while (l > 1 && path[l - 1] == G_DIR_SEPARATOR) l--;
 834
 835         return g_strndup(path, l);
 836 }
 837
 838 static void tab_completion_select_cancel_cb(FileDialog *fd, gpointer data)
 839 {
 840         TabCompData *td = data;
 841
 842         td->fd = NULL;
 843         file_dialog_close(fd);
 844 }
 845
 846 static void tab_completion_select_ok_cb(FileDialog *fd, gpointer data)
 847 {
 848         TabCompData *td = data;
 849
 850         gtk_entry_set_text(GTK_ENTRY(td->entry), gtk_entry_get_text(GTK_ENTRY(fd->entry)));
 851
 852         tab_completion_select_cancel_cb(fd, data);
 853
 854         tab_completion_emit_enter_signal(td);
 855 }
 856
 857 static void tab_completion_select_show(TabCompData *td)
 858 {
 859         const gchar *title;
 860         const gchar *path;
 861         gchar *filter = NULL;
 862         gchar *filter_desc = NULL;
 863
 864         if (td->fd)
 865                 {
 866                 gtk_window_present(GTK_WINDOW(GENERIC_DIALOG(td->fd)->dialog));
 867                 return;
 868                 }
 869
 870         title = (td->fd_title) ? td->fd_title : _("Select path");
 871         td->fd = file_dialog_new(title, "select_path", td->entry,
 872                                  tab_completion_select_cancel_cb, td);
 873         file_dialog_add_button(td->fd, GTK_STOCK_OK, NULL,
 874                                  tab_completion_select_ok_cb, TRUE);
 875
 876         generic_dialog_add_message(GENERIC_DIALOG(td->fd), NULL, title, NULL, FALSE);
 877
 878         if (td->filter)
 879                 {
 880                 filter = td->filter;
 881                 }
 882         else
 883                 {
 884                 filter = "*";
 885                 }
 886         if (td->filter_desc)
 887                 {
 888                 filter_desc = td->filter_desc;
 889                 }
 890         else
 891                 {
 892                 filter_desc = _("All files");
 893                 }
 894
 895         path = gtk_entry_get_text(GTK_ENTRY(td->entry));
 896         if (strlen(path) == 0) path = NULL;
 897         if (td->fd_folders_only)
 898                 {
 899                 file_dialog_add_path_widgets(td->fd, NULL, path, td->history_key, NULL, NULL);
 900                 }
 901         else
 902                 {
 903                 file_dialog_add_path_widgets(td->fd, NULL, path, td->history_key, filter, filter_desc);
 904                 }
 905
 906         gtk_widget_show(GENERIC_DIALOG(td->fd)->dialog);
 907 }
 908
 909 static void tab_completion_select_pressed(GtkWidget *UNUSED(widget), gpointer data)
 910 {
 911         TabCompData *td = data;
 912
 913         tab_completion_select_show(td);
 914 }
 915
 916 void tab_completion_add_select_button(GtkWidget *entry, const gchar *title, gboolean folders_only)
 917 {
 918         TabCompData *td;
 919         GtkWidget *parent;
 920         GtkWidget *hbox;
 921
 922         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 923
 924         if (!td) return;
 925
 926         g_free(td->fd_title);
 927         td->fd_title = g_strdup(title);
 928         td->fd_folders_only = folders_only;
 929
 930         if (td->fd_button) return;
 931
 932         parent = (td->combo) ? td->combo : td->entry;
 933
 934         hbox = gtk_widget_get_parent(parent);
 935         if (!GTK_IS_BOX(hbox)) return;
 936
 937         td->fd_button = gtk_button_new_with_label("...");
 938         g_signal_connect(G_OBJECT(td->fd_button), "size_allocate",
 939                          G_CALLBACK(tab_completion_button_size_allocate), parent);
 940         g_signal_connect(G_OBJECT(td->fd_button), "clicked",
 941                          G_CALLBACK(tab_completion_select_pressed), td);
 942
 943         gtk_box_pack_start(GTK_BOX(hbox), td->fd_button, FALSE, FALSE, 0);
 944
 945         gtk_widget_show(td->fd_button);
 946 }
 947 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */