ROX-Filer/src/appmenu.c

   1 /*
   2  * ROX-Filer, filer for the ROX desktop project
   3  * Copyright (C) 2006, Thomas Leonard and others (see changelog for details).
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the Free
   7  * Software Foundation; either version 2 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  17  * Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 /* appmenu.c - handles application-specific menus read from XMLwrapper.xml */
  21
  22 /* XXX: This handles all File menu extensions. Needs renaming! */
  23
  24 #include "config.h"
  25
  26 #include <gtk/gtk.h>
  27 #include <errno.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <ctype.h>
  31
  32 #include <libxml/parser.h>
  33
  34 #include "global.h"
  35
  36 #include "choices.h"
  37 #include "fscache.h"
  38 #include "gui_support.h"
  39 #include "support.h"
  40 #include "menu.h"
  41 #include "filer.h"
  42 #include "appmenu.h"
  43 #include "dir.h"
  44 #include "type.h"
  45 #include "appinfo.h"
  46 #include "xml.h"
  47 #include "run.h"
  48 #include "diritem.h"
  49 #include "action.h"
  50 #include "options.h"
  51
  52 /* Static prototypes */
  53 static void apprun_menu(GtkWidget *item, gpointer data);
  54 static GtkWidget *create_menu_item(xmlNode *node);
  55 static void show_app_help(GtkWidget *item, gpointer data);
  56 static void build_app_menu(const char *app_dir, DirItem *app_item);
  57 static void mnt_eject(GtkWidget *item, gpointer data);
  58
  59 /* There can only be one menu open at a time... we store: */
  60 static GtkWidget *current_menu = NULL;  /* The GtkMenu */
  61 static guchar *current_app_path = NULL; /* The path of the application */
  62 static GList *current_items = NULL;     /* The GtkMenuItems we added directly
  63                                          * to it --- not submenu items.
  64                                          */
  65 /****************************************************************
  66  *                      EXTERNAL INTERFACE                      *
  67  ****************************************************************/
  68
  69 /* Removes all appmenu menu items */
  70 void appmenu_remove(void)
  71 {
  72         GList *next;
  73
  74         if (!current_menu)
  75                 return;
  76
  77         for (next = current_items; next; next = next->next)
  78                 gtk_widget_destroy((GtkWidget *) next->data);
  79
  80         null_g_free(&current_app_path);
  81         current_menu = NULL;
  82
  83         g_list_free(current_items);
  84         current_items = NULL;
  85 }
  86
  87 /* Add AppMenu entries to 'menu', if appropriate.
  88  * This function modifies the menu stored in "menu".
  89  * 'app_dir' is the pathname of the application directory, and 'item'
  90  * is the corresponding DirItem.
  91  * Returns number of entries added.
  92  * Call appmenu_remove() to undo the effect.
  93  */
  94 int appmenu_add(const gchar *app_dir, DirItem *app_item, GtkWidget *menu)
  95 {
  96         GList   *next;
  97         GtkWidget *sep;
  98         int nadded = 0;
  99
 100         g_return_val_if_fail(menu != NULL, 0);
 101
 102         /* Should have called appmenu_remove() already... */
 103         g_return_val_if_fail(current_menu == NULL, 0);
 104         g_return_val_if_fail(current_items == NULL, 0);
 105
 106         build_app_menu(app_dir, app_item);
 107
 108         if (app_item->flags & ITEM_FLAG_MOUNT_POINT)
 109         {
 110                 GtkWidget *item;
 111                 item = gtk_menu_item_new_with_label(_("Eject"));
 112                 gtk_widget_show(item);
 113                 current_items = g_list_prepend(current_items, item);
 114                 g_signal_connect(item, "activate", G_CALLBACK(mnt_eject), NULL);
 115         }
 116
 117         if (current_items)
 118         {
 119                 sep = gtk_menu_item_new();
 120                 current_items = g_list_prepend(current_items, sep);
 121                 gtk_widget_show(sep);
 122         }
 123
 124         for (next = current_items; next; next = next->next)
 125         {
 126                 gtk_menu_shell_prepend(GTK_MENU_SHELL(menu),
 127                                         GTK_WIDGET(next->data));
 128                 nadded++;
 129         }
 130
 131         current_menu = menu;
 132         current_app_path = g_strdup(app_dir);
 133
 134         return nadded;
 135 }
 136
 137
 138 /****************************************************************
 139  *                      INTERNAL FUNCTIONS                      *
 140  ****************************************************************/
 141
 142 /* Create a new menu and return it */
 143 static GtkWidget *appmenu_add_submenu(xmlNode *subm_node)
 144 {
 145         xmlNode *node;
 146         GtkWidget *sub_menu;
 147
 148         /* Create the new submenu */
 149         sub_menu = gtk_menu_new();
 150
 151         /* Add the menu entries */
 152         for (node = subm_node->xmlChildrenNode; node; node = node->next)
 153         {
 154                 GtkWidget *item;
 155
 156                 item = create_menu_item(node);
 157                 if (item)
 158                         gtk_menu_shell_append(GTK_MENU_SHELL(sub_menu), item);
 159         }
 160
 161         return sub_menu;
 162 }
 163
 164 /* Create and return a menu item */
 165 static GtkWidget *create_menu_item(xmlNode *node)
 166 {
 167         GtkWidget *item;
 168         xmlNode *label_node;
 169         guchar  *label, *option = NULL;
 170         guchar  *icon_name = NULL;
 171         gboolean is_submenu;
 172
 173         if (node->type != XML_ELEMENT_NODE)
 174                 return NULL;
 175
 176         if (strcmp(node->name, "Item") == 0)
 177         {
 178                 is_submenu = FALSE;
 179                 option = xmlGetProp(node, "option");
 180         }
 181         else if (strcmp(node->name, "AppMenu") == 0)
 182                 is_submenu = TRUE;
 183         else
 184                 return NULL;
 185
 186         /* Create the item */
 187         label_node = get_subnode(node, NULL, "Label");
 188         if (label_node)
 189         {
 190                 label = xmlNodeListGetString(label_node->doc,
 191                                         label_node->xmlChildrenNode, 1);
 192         }
 193         else
 194         {
 195                 label = xmlGetProp(node, "label");
 196                 if (!label)
 197                         label = g_strdup(_("<missing label>"));
 198         }
 199         item = gtk_image_menu_item_new_with_label(label);
 200
 201         icon_name = xmlGetProp(node, "icon");
 202         if (icon_name)
 203         {
 204                 GtkWidget *icon = NULL;
 205                 GtkStockItem stock_item;
 206                 if (gtk_stock_lookup(icon_name, &stock_item))
 207                         icon = gtk_image_new_from_stock(icon_name, GTK_ICON_SIZE_MENU);
 208                 else
 209                 {
 210                         GdkPixbuf* pixbuf;
 211                         int size;
 212                         gtk_icon_size_lookup(GTK_ICON_SIZE_MENU, NULL, &size);
 213                         pixbuf = theme_load_icon(icon_name, size, 0, NULL);
 214                         if (pixbuf)
 215                         {
 216                                 icon = gtk_image_new_from_pixbuf(pixbuf);
 217                                 g_object_unref(pixbuf);
 218                         }
 219                 }
 220                 g_free(icon_name);
 221                 if (icon)
 222                         gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
 223                                                       GTK_WIDGET(icon));
 224         }
 225
 226         gtk_widget_set_accel_path(item, NULL, NULL);    /* XXX */
 227
 228         g_free(label);
 229
 230         if (is_submenu)
 231         {
 232                 /* Add submenu items */
 233
 234                 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item),
 235                                           appmenu_add_submenu(node));
 236         }
 237         else
 238         {
 239                 /* Set up callback */
 240
 241                 if (option)
 242                 {
 243                         g_object_set_data_full(G_OBJECT(item), "option",
 244                                         g_strdup(option),
 245                                         g_free);
 246                         g_free(option);
 247                 }
 248
 249                 g_signal_connect(item, "activate", G_CALLBACK(apprun_menu),
 250                                 NULL);
 251         }
 252
 253         gtk_widget_show(item);
 254
 255         return item;
 256 }
 257
 258 /* Send to current_app_path (though not actually an app) */
 259 static void send_to(GtkWidget *item, const char *app)
 260 {
 261         GList *file_list;
 262
 263         g_return_if_fail(current_app_path != NULL);
 264
 265         file_list = g_list_prepend(NULL, current_app_path);
 266         run_with_files(app, file_list);
 267         g_list_free(file_list);
 268 }
 269
 270 /* Function called to execute an AppMenu item */
 271 static void apprun_menu(GtkWidget *item, gpointer data)
 272 {
 273         guchar  *option;
 274         gchar *argv[3];
 275
 276         g_return_if_fail(current_app_path != NULL);
 277
 278         option = g_object_get_data(G_OBJECT(item), "option");
 279
 280         argv[0] = g_strconcat(current_app_path, "/AppRun", NULL);
 281         argv[1] = option;       /* (may be NULL) */
 282         argv[2] = NULL;
 283
 284         rox_spawn(NULL, (const gchar **) argv);
 285
 286         g_free(argv[0]);
 287 }
 288
 289 static void show_app_help(GtkWidget *item, gpointer data)
 290 {
 291         g_return_if_fail(current_app_path != NULL);
 292
 293         show_help_files(current_app_path);
 294 }
 295
 296 static void mnt_eject(GtkWidget *item, gpointer data)
 297 {
 298         GList *dirs;
 299
 300         g_return_if_fail(current_app_path != NULL);
 301         dirs = g_list_prepend(NULL, current_app_path);
 302         action_eject(dirs);
 303         g_list_free(dirs);
 304 }
 305
 306 static void customise_type(GtkWidget *item, MIME_type *type)
 307 {
 308         char *leaf;
 309         char *path;
 310
 311         leaf = g_strconcat(".", type->media_type, "_", type->subtype, NULL);
 312         path = choices_find_xdg_path_save(leaf, "SendTo", SITE, TRUE);
 313         g_free(leaf);
 314
 315         mkdir(path, 0755);
 316         filer_opendir(path, NULL, NULL);
 317         g_free(path);
 318
 319         info_message(_("Symlink any programs you want into this directory. "
 320                         "They will appear in the menu for all items of this "
 321                         "type (%s/%s)."), type->media_type, type->subtype);
 322 }
 323
 324 static void build_menu_for_type(MIME_type *type)
 325 {
 326         GPtrArray *names;
 327         char *path;
 328         int i;
 329         char *leaf;
 330         GtkWidget *item;
 331         DirItem *ditem;
 332
 333         leaf = g_strconcat(".", type->media_type, "_", type->subtype, NULL);
 334         path = choices_find_xdg_path_load(leaf, "SendTo", SITE);
 335
 336         if (!path)
 337                 goto out;
 338
 339         names = list_dir(path);
 340
 341         ditem = diritem_new("");
 342
 343         for (i = 0; i < names->len; i++)
 344         {
 345                 char    *leaf = names->pdata[i];
 346                 char    *full_path;
 347
 348                 full_path = g_build_filename(path, leaf, NULL);
 349                 diritem_restat(full_path, ditem, NULL);
 350
 351                 item = make_send_to_item(ditem, leaf, MIS_SMALL);
 352                 current_items = g_list_prepend(current_items, item);
 353                 gtk_widget_show(item);
 354                 g_signal_connect_data(item, "activate", G_CALLBACK(send_to),
 355                                 full_path, (GClosureNotify) g_free, 0);
 356         }
 357
 358         g_ptr_array_free(names, TRUE);
 359
 360         g_free(path);
 361
 362 out:
 363         item = gtk_menu_item_new_with_label(_("Customise Menu..."));
 364         current_items = g_list_prepend(current_items, item);
 365         g_signal_connect(item, "activate", G_CALLBACK(customise_type), type);
 366         gtk_widget_show(item);
 367
 368         g_free(leaf);
 369 }
 370
 371 static inline gboolean is_dir(const char *dir)
 372 {
 373         struct stat info;
 374         return stat(dir, &info) == 0 && S_ISDIR(info.st_mode);
 375 }
 376
 377 /* Adds to current_items */
 378 static void build_app_menu(const char *app_dir, DirItem *app_item)
 379 {
 380         XMLwrapper      *ai = NULL;
 381         xmlNode *node;
 382         GtkWidget *item;
 383         char *help_dir;
 384
 385         ai = appinfo_get(app_dir, app_item);
 386         if (ai)
 387         {
 388                 node = xml_get_section(ai, NULL, "AppMenu");
 389                 if (node)
 390                         node = node->xmlChildrenNode;
 391         }
 392         else
 393         {
 394                 if (app_item->flags & ITEM_FLAG_APPDIR)
 395                         node = NULL;
 396                 else
 397                 {
 398                         /* Not an application AND no AppInfo */
 399                         build_menu_for_type(app_item->mime_type);
 400                         return;
 401                 }
 402         }
 403
 404         /* Add the menu entries */
 405         for (; node; node = node->next)
 406         {
 407                 item = create_menu_item(node);
 408
 409                 if (item)
 410                         current_items = g_list_prepend(current_items, item);
 411         }
 412
 413         help_dir = g_build_filename(app_dir, "Help", NULL);
 414         if (is_dir(help_dir))
 415         {
 416                 item = gtk_image_menu_item_new_from_stock(GTK_STOCK_HELP, NULL);
 417                 gtk_widget_show(item);
 418                 current_items = g_list_prepend(current_items, item);
 419                 g_signal_connect(item, "activate", G_CALLBACK(show_app_help), NULL);
 420                 gtk_label_set_text(GTK_LABEL(GTK_BIN(item)->child), _("Help"));
 421         }
 422         g_free(help_dir);
 423
 424         if (ai)
 425                 g_object_unref(ai);
 426 }