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 1000
  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         guint choices;
  83 };
  84
  85
  86 static void tab_completion_select_show(TabCompData *td);
  87 static gint tab_completion_do(TabCompData *td);
  88
  89 static void tab_completion_free_list(TabCompData *td)
  90 {
  91         GList *list;
  92
  93         g_free(td->dir_path);
  94         td->dir_path = NULL;
  95
  96         list = td->file_list;
  97
  98         while (list)
  99                 {
 100                 g_free(list->data);
 101                 list = list->next;
 102                 }
 103
 104         g_list_free(td->file_list);
 105         td->file_list = NULL;
 106 }
 107
 108 static void tab_completion_read_dir(TabCompData *td, const gchar *path)
 109 {
 110         DIR *dp;
 111         struct dirent *dir;
 112         GList *list = NULL;
 113         gchar *pathl;
 114
 115         tab_completion_free_list(td);
 116
 117         pathl = path_from_utf8(path);
 118         dp = opendir(pathl);
 119         if (!dp)
 120                 {
 121                 /* dir not found */
 122                 g_free(pathl);
 123                 return;
 124                 }
 125         while ((dir = readdir(dp)) != NULL)
 126                 {
 127                 gchar *name = dir->d_name;
 128                 if (strcmp(name, ".") != 0 && strcmp(name, "..") != 0)
 129                         {
 130                         gchar *abspath = g_build_filename(pathl, name, NULL);
 131
 132                         if (g_file_test(abspath, G_FILE_TEST_IS_DIR))
 133                                 {
 134                                 gchar *dname = g_strconcat(name, G_DIR_SEPARATOR_S, NULL);
 135                                 list = g_list_prepend(list, path_to_utf8(dname));
 136                                 g_free(dname);
 137                                 }
 138                         else
 139                                 {
 140                                 list = g_list_prepend(list, path_to_utf8(name));
 141                                 }
 142                         g_free(abspath);
 143                         }
 144                 }
 145         closedir(dp);
 146
 147         td->dir_path = g_strdup(path);
 148         td->file_list = list;
 149         g_free(pathl);
 150 }
 151
 152 static void tab_completion_destroy(GtkWidget *widget, gpointer data)
 153 {
 154         TabCompData *td = data;
 155
 156         tab_completion_free_list(td);
 157         g_free(td->history_key);
 158
 159         if (td->fd) file_dialog_close(td->fd);
 160         g_free(td->fd_title);
 161
 162         g_free(td);
 163 }
 164
 165 static gchar *tab_completion_get_text(TabCompData *td)
 166 {
 167         gchar *text;
 168
 169         text = g_strdup(gtk_entry_get_text(GTK_ENTRY(td->entry)));
 170
 171         if (text[0] == '~')
 172                 {
 173                 gchar *t = text;
 174                 text = expand_tilde(text);
 175                 g_free(t);
 176                 }
 177
 178         return text;
 179 }
 180
 181 static gint tab_completion_emit_enter_signal(TabCompData *td)
 182 {
 183         gchar *text;
 184         if (!td->enter_func) return FALSE;
 185
 186         text = tab_completion_get_text(td);
 187         td->enter_func(text, td->enter_data);
 188         g_free(text);
 189
 190         return TRUE;
 191 }
 192
 193 static void tab_completion_emit_tab_signal(TabCompData *td)
 194 {
 195         gchar *text;
 196         if (!td->tab_func) return;
 197
 198         text = tab_completion_get_text(td);
 199         td->tab_func(text, td->tab_data);
 200         g_free(text);
 201 }
 202
 203 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 204 void tab_completion_iter_menu_items(GtkWidget *widget, gpointer data)
 205 {
 206         TabCompData *td = data;
 207         GtkWidget *child;
 208
 209         if (!GTK_WIDGET_VISIBLE(widget)) return;
 210
 211         child = gtk_bin_get_child(GTK_BIN(widget));
 212         if (GTK_IS_LABEL(child)) {
 213                 const gchar *text = gtk_label_get_text(GTK_LABEL(child));
 214                 const gchar *entry_text = gtk_entry_get_text(GTK_ENTRY(td->entry));
 215                 const gchar *prefix = filename_from_path(entry_text);
 216                 guint prefix_len = strlen(prefix);
 217
 218                 if (strlen(text) < prefix_len || strncmp(text, prefix, prefix_len))
 219                         {
 220                         /* Hide menu items not matching */
 221                         gtk_widget_hide(widget);
 222                         }
 223                 else
 224                         {
 225                         /* Count how many choices are left in the menu */
 226                         td->choices++;
 227                         }
 228         }
 229 }
 230
 231 static gint tab_completion_popup_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
 232 {
 233         TabCompData *td = data;
 234
 235         if (event->keyval == GDK_Tab ||
 236             event->keyval == GDK_BackSpace ||
 237             (event->keyval >= 0x20 && event->keyval <= 0xFF) )
 238                 {
 239                 if (event->keyval >= 0x20 && event->keyval <= 0xFF)
 240                         {
 241                         gchar buf[2];
 242                         gint p = -1;
 243
 244                         buf[0] = event->keyval;
 245                         buf[1] = '\0';
 246                         gtk_editable_insert_text(GTK_EDITABLE(td->entry), buf, 1, &p);
 247                         gtk_editable_set_position(GTK_EDITABLE(td->entry), -1);
 248
 249                         /* Reduce the number of entries in the menu */
 250                         td->choices = 0;
 251                         gtk_container_foreach(GTK_CONTAINER(widget), tab_completion_iter_menu_items, (gpointer) td);
 252                         if (td->choices > 1) return TRUE; /* multiple choices */
 253                         if (td->choices > 0) tab_completion_do(td); /* one choice */
 254                         }
 255
 256                 /* close the menu */
 257                 gtk_menu_popdown(GTK_MENU(widget));
 258                 /* doing this does not emit the "selection done" signal, unref it ourselves */
 259 #if GTK_CHECK_VERSION(2,12,0)
 260                 g_object_unref(widget);
 261 #else
 262                 gtk_widget_unref(widget);
 263 #endif
 264                 return TRUE;
 265                 }
 266
 267         return FALSE;
 268 }
 269
 270 static void tab_completion_popup_cb(GtkWidget *widget, gpointer data)
 271 {
 272         gchar *name = data;
 273         TabCompData *td;
 274         gchar *buf;
 275
 276         td = g_object_get_data(G_OBJECT(widget), "tab_completion_data");
 277         if (!td) return;
 278
 279         buf = g_build_filename(td->dir_path, name, NULL);
 280         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 281         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 282         g_free(buf);
 283
 284         tab_completion_emit_tab_signal(td);
 285 }
 286
 287 static void tab_completion_popup_pos_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
 288 {
 289         TabCompData *td = data;
 290         gint height;
 291         PangoLayout *layout;
 292         PangoRectangle strong_pos, weak_pos;
 293         gint length;
 294         gint xoffset, yoffset;
 295         GtkRequisition req;
 296         GdkScreen *screen;
 297         gint monitor_num;
 298         GdkRectangle monitor;
 299
 300         gdk_window_get_origin(td->entry->window, x, y);
 301
 302         screen = gtk_widget_get_screen(GTK_WIDGET(menu));
 303         monitor_num = gdk_screen_get_monitor_at_window(screen, td->entry->window);
 304         gdk_screen_get_monitor_geometry(screen, monitor_num, &monitor);
 305
 306         gtk_widget_size_request(GTK_WIDGET(menu), &req);
 307
 308         length = strlen(gtk_entry_get_text(GTK_ENTRY(td->entry)));
 309         gtk_entry_get_layout_offsets(GTK_ENTRY(td->entry), &xoffset, &yoffset);
 310
 311         layout = gtk_entry_get_layout(GTK_ENTRY(td->entry));
 312         pango_layout_get_cursor_pos(layout, length, &strong_pos, &weak_pos);
 313
 314         *x += strong_pos.x / PANGO_SCALE + xoffset;
 315
 316         height = MIN(td->entry->requisition.height, td->entry->allocation.height);
 317
 318         if (req.height > monitor.y + monitor.height - *y - height &&
 319             *y - monitor.y >  monitor.y + monitor.height - *y)
 320                 {
 321                 height = MIN(*y - monitor.y, req.height);
 322                 gtk_widget_set_size_request(GTK_WIDGET(menu), -1, height);
 323                 *y -= height;
 324                 }
 325         else
 326                 {
 327                 *y += height;
 328                 }
 329 }
 330
 331 static void tab_completion_popup_list(TabCompData *td, GList *list)
 332 {
 333         GtkWidget *menu;
 334         GList *work;
 335         GdkEvent *event;
 336         guint32 etime;
 337         gint ebutton;
 338         gint count = 0;
 339
 340         if (!list) return;
 341
 342 #if 0
 343         /*
 344          * well, the menu would be too long anyway...
 345          * (listing /dev causes gtk+ window allocation errors, -> too big a window)
 346          * this is why menu popups are disabled, this really should be a popup scrollable listview.
 347          */
 348         if (g_list_length(list) > 200) return;
 349 #endif
 350
 351         menu = popup_menu_short_lived();
 352
 353         work = list;
 354         while (work && count < TAB_COMP_POPUP_MAX)
 355                 {
 356                 gchar *name = work->data;
 357                 GtkWidget *item;
 358
 359                 item = menu_item_add_simple(menu, name, G_CALLBACK(tab_completion_popup_cb), name);
 360                 g_object_set_data(G_OBJECT(item), "tab_completion_data", td);
 361
 362                 work = work->next;
 363                 count++;
 364                 }
 365
 366         g_signal_connect(G_OBJECT(menu), "key_press_event",
 367                          G_CALLBACK(tab_completion_popup_key_press), td);
 368
 369         /* peek at the current event to get the time, etc. */
 370         event = gtk_get_current_event();
 371
 372         if (event && event->type == GDK_BUTTON_RELEASE)
 373                 {
 374                 ebutton = event->button.button;
 375                 }
 376         else
 377                 {
 378                 ebutton = 0;
 379                 }
 380
 381         if (event)
 382                 {
 383                 etime = gdk_event_get_time(event);
 384                 gdk_event_free(event);
 385                 }
 386         else
 387                 {
 388                 etime = 0;
 389                 }
 390
 391         gtk_menu_popup(GTK_MENU(menu), NULL, NULL,
 392                        tab_completion_popup_pos_cb, td, ebutton, etime);
 393 }
 394
 395 #ifndef CASE_SORT
 396 #define CASE_SORT strcmp
 397 #endif
 398
 399 static gint simple_sort(gconstpointer a, gconstpointer b)
 400 {
 401         return CASE_SORT((gchar *)a, (gchar *)b);
 402 }
 403
 404 #endif
 405
 406 static gint tab_completion_do(TabCompData *td)
 407 {
 408         const gchar *entry_text = gtk_entry_get_text(GTK_ENTRY(td->entry));
 409         const gchar *entry_file;
 410         gchar *entry_dir;
 411         gchar *ptr;
 412         gboolean home_exp = FALSE;
 413
 414         if (entry_text[0] == '\0')
 415                 {
 416                 entry_dir = g_strdup(G_DIR_SEPARATOR_S); /* FIXME: root directory win32 */
 417                 gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 418                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 419                 g_free(entry_dir);
 420                 return FALSE;
 421                 }
 422
 423         /* home dir expansion */
 424         if (entry_text[0] == '~')
 425                 {
 426                 entry_dir = expand_tilde(entry_text);
 427                 home_exp = TRUE;
 428                 }
 429         else
 430                 {
 431                 entry_dir = g_strdup(entry_text);
 432                 }
 433
 434         if (isfile(entry_dir))
 435                 {
 436                 if (home_exp)
 437                         {
 438                         gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 439                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 440                         }
 441                 g_free(entry_dir);
 442                 return home_exp;
 443                 }
 444
 445         entry_file = filename_from_path(entry_text);
 446
 447         if (isdir(entry_dir) && strcmp(entry_file, ".") != 0 && strcmp(entry_file, "..") != 0)
 448                 {
 449                 ptr = entry_dir + strlen(entry_dir) - 1;
 450                 if (ptr[0] == G_DIR_SEPARATOR)
 451                         {
 452                         if (home_exp)
 453                                 {
 454                                 gtk_entry_set_text(GTK_ENTRY(td->entry), entry_dir);
 455                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(entry_dir));
 456                                 }
 457
 458                         tab_completion_read_dir(td, entry_dir);
 459                         td->file_list = g_list_sort(td->file_list, simple_sort);
 460                         if (td->file_list && !td->file_list->next)
 461                                 {
 462                                 gchar *buf;
 463                                 const gchar *file;
 464
 465                                 file = td->file_list->data;
 466                                 buf = g_build_filename(entry_dir, file, NULL);
 467                                 if (isdir(buf))
 468                                         {
 469                                         gchar *tmp = g_strconcat(buf, G_DIR_SEPARATOR_S, NULL);
 470                                         g_free(buf);
 471                                         buf = tmp;
 472                                         }
 473                                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 474                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 475                                 g_free(buf);
 476                                 }
 477
 478 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 479
 480                         else
 481                                 {
 482                                 tab_completion_popup_list(td, td->file_list);
 483                                 }
 484 #endif
 485
 486                         g_free(entry_dir);
 487                         return home_exp;
 488                         }
 489                 else
 490                         {
 491                         gchar *buf = g_strconcat(entry_dir, G_DIR_SEPARATOR_S, NULL);
 492                         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 493                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 494                         g_free(buf);
 495                         g_free(entry_dir);
 496                         return TRUE;
 497                         }
 498                 }
 499
 500         ptr = (gchar *)filename_from_path(entry_dir);
 501         if (ptr > entry_dir) ptr--;
 502         ptr[0] = '\0';
 503
 504         if (strlen(entry_dir) == 0)
 505                 {
 506                 g_free(entry_dir);
 507                 entry_dir = g_strdup(G_DIR_SEPARATOR_S); /* FIXME: win32 */
 508                 }
 509
 510         if (isdir(entry_dir))
 511                 {
 512                 GList *list;
 513                 GList *poss = NULL;
 514                 gint l = strlen(entry_file);
 515
 516                 if (!td->dir_path || !td->file_list || strcmp(td->dir_path, entry_dir) != 0)
 517                         {
 518                         tab_completion_read_dir(td, entry_dir);
 519                         }
 520
 521                 list = td->file_list;
 522                 while (list)
 523                         {
 524                         gchar *file = list->data;
 525                         if (strncmp(entry_file, file, l) == 0)
 526                                 {
 527                                 poss = g_list_prepend(poss, file);
 528                                 }
 529                         list = list->next;
 530                         }
 531
 532                 if (poss)
 533                         {
 534                         if (!poss->next)
 535                                 {
 536                                 gchar *file = poss->data;
 537                                 gchar *buf;
 538
 539                                 buf = g_build_filename(entry_dir, file, NULL);
 540                                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 541                                 gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 542                                 g_free(buf);
 543                                 g_list_free(poss);
 544                                 g_free(entry_dir);
 545                                 return TRUE;
 546                                 }
 547                         else
 548                                 {
 549                                 gsize c = strlen(entry_file);
 550                                 gboolean done = FALSE;
 551                                 gchar *test_file = poss->data;
 552
 553                                 while (!done)
 554                                         {
 555                                         list = poss;
 556                                         if (!list) done = TRUE;
 557                                         while (list && !done)
 558                                                 {
 559                                                 gchar *file = list->data;
 560                                                 if (strlen(file) < c || strncmp(test_file, file, c) != 0)
 561                                                         {
 562                                                         done = TRUE;
 563                                                         }
 564                                                 list = list->next;
 565                                                 }
 566                                         c++;
 567                                         }
 568                                 c -= 2;
 569                                 if (c > 0)
 570                                         {
 571                                         gchar *file;
 572                                         gchar *buf;
 573                                         file = g_strdup(test_file);
 574                                         file[c] = '\0';
 575                                         buf = g_build_filename(entry_dir, file, NULL);
 576                                         gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 577                                         gtk_editable_set_position(GTK_EDITABLE(td->entry), strlen(buf));
 578
 579 #ifdef TAB_COMPLETION_ENABLE_POPUP_MENU
 580
 581                                         poss = g_list_sort(poss, simple_sort);
 582                                         tab_completion_popup_list(td, poss);
 583
 584 #endif
 585
 586                                         g_free(file);
 587                                         g_free(buf);
 588                                         g_list_free(poss);
 589                                         g_free(entry_dir);
 590                                         return TRUE;
 591                                         }
 592                                 }
 593                         g_list_free(poss);
 594                         }
 595                 }
 596
 597         g_free(entry_dir);
 598
 599         return FALSE;
 600 }
 601
 602 static gint tab_completion_key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 603 {
 604         TabCompData *td = data;
 605         gboolean stop_signal = FALSE;
 606
 607         switch (event->keyval)
 608                 {
 609                 case GDK_Tab:
 610                         if (!(event->state & GDK_CONTROL_MASK))
 611                                 {
 612                                 if (tab_completion_do(td))
 613                                         {
 614                                         tab_completion_emit_tab_signal(td);
 615                                         }
 616                                 stop_signal = TRUE;
 617                                 }
 618                         break;
 619                 case GDK_Return: case GDK_KP_Enter:
 620                         if (td->fd_button &&
 621                             (event->state & GDK_CONTROL_MASK))
 622                                 {
 623                                 tab_completion_select_show(td);
 624                                 stop_signal = TRUE;
 625                                 }
 626                         else if (tab_completion_emit_enter_signal(td))
 627                                 {
 628                                 stop_signal = TRUE;
 629                                 }
 630                         break;
 631                 default:
 632                         break;
 633                 }
 634
 635         if (stop_signal) g_signal_stop_emission_by_name(G_OBJECT(widget), "key_press_event");
 636
 637         return (stop_signal);
 638 }
 639
 640 static void tab_completion_button_pressed(GtkWidget *widget, gpointer data)
 641 {
 642         TabCompData *td;
 643         GtkWidget *entry = data;
 644
 645         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 646
 647         if (!td) return;
 648
 649         if (!GTK_WIDGET_HAS_FOCUS(entry))
 650                 {
 651                 gtk_widget_grab_focus(entry);
 652                 }
 653
 654         if (tab_completion_do(td))
 655                 {
 656                 tab_completion_emit_tab_signal(td);
 657                 }
 658 }
 659
 660 static void tab_completion_button_size_allocate(GtkWidget *button, GtkAllocation *allocation, gpointer data)
 661 {
 662         GtkWidget *parent = data;
 663
 664         if (allocation->height > parent->allocation.height)
 665                 {
 666                 GtkAllocation button_allocation;
 667
 668                 button_allocation = button->allocation;
 669                 button_allocation.height = parent->allocation.height;
 670                 button_allocation.y = parent->allocation.y +
 671                         (parent->allocation.height - parent->allocation.height) / 2;
 672                 gtk_widget_size_allocate(button, &button_allocation);
 673                 }
 674 }
 675
 676 static GtkWidget *tab_completion_create_complete_button(GtkWidget *entry, GtkWidget *parent)
 677 {
 678         GtkWidget *button;
 679         GtkWidget *icon;
 680         GdkPixbuf *pixbuf;
 681
 682         button = gtk_button_new();
 683         GTK_WIDGET_UNSET_FLAGS(button, GTK_CAN_FOCUS);
 684         g_signal_connect(G_OBJECT(button), "size_allocate",
 685                          G_CALLBACK(tab_completion_button_size_allocate), parent);
 686         g_signal_connect(G_OBJECT(button), "clicked",
 687                          G_CALLBACK(tab_completion_button_pressed), entry);
 688
 689         pixbuf = gdk_pixbuf_new_from_inline(-1, icon_tabcomp, FALSE, NULL);
 690         icon = gtk_image_new_from_pixbuf(pixbuf);
 691         g_object_unref(pixbuf);
 692
 693         gtk_container_add(GTK_CONTAINER(button), icon);
 694         gtk_widget_show(icon);
 695
 696         return button;
 697 }
 698
 699 /*
 700  *----------------------------------------------------------------------------
 701  * public interface
 702  *----------------------------------------------------------------------------
 703  */
 704
 705 GtkWidget *tab_completion_new_with_history(GtkWidget **entry, const gchar *text,
 706                                            const gchar *history_key, gint max_levels,
 707                                            void (*enter_func)(const gchar *, gpointer), gpointer data)
 708 {
 709         GtkWidget *box;
 710         GtkWidget *combo;
 711         GtkWidget *combo_entry;
 712         GtkWidget *button;
 713         GList *work;
 714         TabCompData *td;
 715         gint n = 0;
 716
 717         box = gtk_hbox_new(FALSE, 0);
 718
 719         combo = gtk_combo_box_entry_new_text();
 720         gtk_box_pack_start(GTK_BOX(box), combo, TRUE, TRUE, 0);
 721         gtk_widget_show(combo);
 722
 723         combo_entry = GTK_BIN(combo)->child;
 724 #if 0
 725         gtk_combo_set_case_sensitive(GTK_COMBO(combo), TRUE);
 726         gtk_combo_set_use_arrows(GTK_COMBO(combo), FALSE);
 727 #endif
 728
 729         button = tab_completion_create_complete_button(combo_entry, combo);
 730         gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 0);
 731         gtk_widget_show(button);
 732
 733         tab_completion_add_to_entry(combo_entry, enter_func, data);
 734
 735         td = g_object_get_data(G_OBJECT(combo_entry), "tab_completion_data");
 736         if (!td) return NULL; /* this should never happen! */
 737
 738         td->combo = combo;
 739         td->has_history = TRUE;
 740         td->history_key = g_strdup(history_key);
 741         td->history_levels = max_levels;
 742
 743         work = history_list_get_by_key(td->history_key);
 744
 745         work = history_list_get_by_key(history_key);
 746         while (work)
 747                 {
 748                 gtk_combo_box_append_text(GTK_COMBO_BOX(combo), (gchar *)work->data);
 749                 work = work->next;
 750                 n++;
 751                 }
 752
 753         if (text)
 754                 {
 755                 gtk_entry_set_text(GTK_ENTRY(combo_entry), text);
 756                 }
 757         else if (n > 0)
 758                 {
 759                 gtk_combo_box_set_active(GTK_COMBO_BOX(combo), 0);
 760                 }
 761
 762         if (entry) *entry = combo_entry;
 763         return box;
 764 }
 765
 766 const gchar *tab_completion_set_to_last_history(GtkWidget *entry)
 767 {
 768         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 769         const gchar *buf;
 770
 771         if (!td || !td->has_history) return NULL;
 772
 773         buf = history_list_find_last_path_by_key(td->history_key);
 774         if (buf)
 775                 {
 776                 gtk_entry_set_text(GTK_ENTRY(td->entry), buf);
 777                 }
 778
 779         return buf;
 780 }
 781
 782 void tab_completion_append_to_history(GtkWidget *entry, const gchar *path)
 783 {
 784         TabCompData *td;
 785         GtkTreeModel *store;
 786         GList *work;
 787         gint n = 0;
 788
 789         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 790
 791         if (!path) return;
 792
 793         if (!td || !td->has_history) return;
 794
 795         history_list_add_to_key(td->history_key, path, td->history_levels);
 796
 797         gtk_combo_box_set_active(GTK_COMBO_BOX(td->combo), -1);
 798
 799         store = gtk_combo_box_get_model(GTK_COMBO_BOX(td->combo));
 800         gtk_list_store_clear(GTK_LIST_STORE(store));
 801
 802         work = history_list_get_by_key(td->history_key);
 803         while (work)
 804                 {
 805                 gtk_combo_box_append_text(GTK_COMBO_BOX(td->combo), (gchar *)work->data);
 806                 work = work->next;
 807                 n++;
 808                 }
 809
 810         if (td->tab_append_func) {
 811                 td->tab_append_func(path, td->tab_append_data, n);
 812         }
 813 }
 814
 815 GtkWidget *tab_completion_new(GtkWidget **entry, const gchar *text,
 816                               void (*enter_func)(const gchar *, gpointer), gpointer data)
 817 {
 818         GtkWidget *hbox;
 819         GtkWidget *button;
 820         GtkWidget *newentry;
 821
 822         hbox = gtk_hbox_new(FALSE, 0);
 823
 824         newentry = gtk_entry_new();
 825         if (text) gtk_entry_set_text(GTK_ENTRY(newentry), text);
 826         gtk_box_pack_start(GTK_BOX(hbox), newentry, TRUE, TRUE, 0);
 827         gtk_widget_show(newentry);
 828
 829         button = tab_completion_create_complete_button(newentry, newentry);
 830         gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, FALSE, 0);
 831         gtk_widget_show(button);
 832
 833         tab_completion_add_to_entry(newentry, enter_func, data);
 834
 835         if (entry) *entry = newentry;
 836         return hbox;
 837 }
 838
 839 void tab_completion_add_to_entry(GtkWidget *entry, void (*enter_func)(const gchar *, gpointer), gpointer data)
 840 {
 841         TabCompData *td;
 842         if (!entry)
 843                 {
 844                 log_printf("Tab completion error: entry != NULL\n");
 845                 return;
 846                 }
 847
 848         td = g_new0(TabCompData, 1);
 849
 850         td->entry = entry;
 851         td->enter_func = enter_func;
 852         td->enter_data = data;
 853
 854         g_object_set_data(G_OBJECT(td->entry), "tab_completion_data", td);
 855
 856         g_signal_connect(G_OBJECT(entry), "key_press_event",
 857                          G_CALLBACK(tab_completion_key_pressed), td);
 858         g_signal_connect(G_OBJECT(entry), "destroy",
 859                          G_CALLBACK(tab_completion_destroy), td);
 860 }
 861
 862 void tab_completion_add_tab_func(GtkWidget *entry, void (*tab_func)(const gchar *, gpointer), gpointer data)
 863 {
 864         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 865
 866         if (!td) return;
 867
 868         td->tab_func = tab_func;
 869         td->tab_data = data;
 870 }
 871
 872 /* Add a callback function called when a new entry is appended to the list */
 873 void tab_completion_add_append_func(GtkWidget *entry, void (*tab_append_func)(const gchar *, gpointer, gint), gpointer data)
 874 {
 875         TabCompData *td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 876
 877         if (!td) return;
 878
 879         td->tab_append_func = tab_append_func;
 880         td->tab_append_data = data;
 881 }
 882
 883 gchar *remove_trailing_slash(const gchar *path)
 884 {
 885         gint l;
 886
 887         if (!path) return NULL;
 888
 889         l = strlen(path);
 890         while (l > 1 && path[l - 1] == G_DIR_SEPARATOR) l--;
 891
 892         return g_strndup(path, l);
 893 }
 894
 895 static void tab_completion_select_cancel_cb(FileDialog *fd, gpointer data)
 896 {
 897         TabCompData *td = data;
 898
 899         td->fd = NULL;
 900         file_dialog_close(fd);
 901 }
 902
 903 static void tab_completion_select_ok_cb(FileDialog *fd, gpointer data)
 904 {
 905         TabCompData *td = data;
 906
 907         gtk_entry_set_text(GTK_ENTRY(td->entry), gtk_entry_get_text(GTK_ENTRY(fd->entry)));
 908
 909         tab_completion_select_cancel_cb(fd, data);
 910
 911         tab_completion_emit_enter_signal(td);
 912 }
 913
 914 static void tab_completion_select_show(TabCompData *td)
 915 {
 916         const gchar *title;
 917         const gchar *path;
 918
 919         if (td->fd)
 920                 {
 921                 gtk_window_present(GTK_WINDOW(GENERIC_DIALOG(td->fd)->dialog));
 922                 return;
 923                 }
 924
 925         title = (td->fd_title) ? td->fd_title : _("Select path");
 926         td->fd = file_dialog_new(title, "select_path", td->entry,
 927                                  tab_completion_select_cancel_cb, td);
 928         file_dialog_add_button(td->fd, GTK_STOCK_OK, NULL,
 929                                  tab_completion_select_ok_cb, TRUE);
 930
 931         generic_dialog_add_message(GENERIC_DIALOG(td->fd), NULL, title, NULL);
 932
 933         path = gtk_entry_get_text(GTK_ENTRY(td->entry));
 934         if (strlen(path) == 0) path = NULL;
 935         if (td->fd_folders_only)
 936                 {
 937                 file_dialog_add_path_widgets(td->fd, NULL, path, td->history_key, NULL, NULL);
 938                 }
 939         else
 940                 {
 941                 file_dialog_add_path_widgets(td->fd, NULL, path, td->history_key, "*", _("All files"));
 942                 }
 943
 944         gtk_widget_show(GENERIC_DIALOG(td->fd)->dialog);
 945 }
 946
 947 static void tab_completion_select_pressed(GtkWidget *widget, gpointer data)
 948 {
 949         TabCompData *td = data;
 950
 951         tab_completion_select_show(td);
 952 }
 953
 954 void tab_completion_add_select_button(GtkWidget *entry, const gchar *title, gint folders_only)
 955 {
 956         TabCompData *td;
 957         GtkWidget *parent;
 958         GtkWidget *hbox;
 959
 960         td = g_object_get_data(G_OBJECT(entry), "tab_completion_data");
 961
 962         if (!td) return;
 963
 964         g_free(td->fd_title);
 965         td->fd_title = g_strdup(title);
 966         td->fd_folders_only = folders_only;
 967
 968         if (td->fd_button) return;
 969
 970         parent = (td->combo) ? td->combo : td->entry;
 971
 972         hbox = gtk_widget_get_parent(parent);
 973         if (!GTK_IS_BOX(hbox)) return;
 974
 975         td->fd_button = gtk_button_new_with_label("...");
 976         g_signal_connect(G_OBJECT(td->fd_button), "size_allocate",
 977                          G_CALLBACK(tab_completion_button_size_allocate), parent);
 978         g_signal_connect(G_OBJECT(td->fd_button), "clicked",
 979                          G_CALLBACK(tab_completion_select_pressed), td);
 980
 981         gtk_box_pack_start(GTK_BOX(hbox), td->fd_button, FALSE, FALSE, 0);
 982
 983         gtk_widget_show(td->fd_button);
 984 }
 985 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */