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;
 205                 icon = gtk_image_new_from_icon_name(icon_name,
 206                                                     GTK_ICON_SIZE_MENU);
 207                 g_free(icon_name);
 208                 if (icon)
 209                         gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
 210                                                       GTK_WIDGET(icon));
 211         }
 212
 213         gtk_widget_set_accel_path(item, NULL, NULL);    /* XXX */
 214
 215         g_free(label);
 216
 217         if (is_submenu)
 218         {
 219                 /* Add submenu items */
 220
 221                 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item),
 222                                           appmenu_add_submenu(node));
 223         }
 224         else
 225         {
 226                 /* Set up callback */
 227
 228                 if (option)
 229                 {
 230                         g_object_set_data_full(G_OBJECT(item), "option",
 231                                         g_strdup(option),
 232                                         g_free);
 233                         g_free(option);
 234                 }
 235
 236                 g_signal_connect(item, "activate", G_CALLBACK(apprun_menu),
 237                                 NULL);
 238         }
 239
 240         gtk_widget_show(item);
 241
 242         return item;
 243 }
 244
 245 /* Send to current_app_path (though not actually an app) */
 246 static void send_to(GtkWidget *item, const char *app)
 247 {
 248         GList *file_list;
 249
 250         g_return_if_fail(current_app_path != NULL);
 251
 252         file_list = g_list_prepend(NULL, current_app_path);
 253         run_with_files(app, file_list);
 254         g_list_free(file_list);
 255 }
 256
 257 /* Function called to execute an AppMenu item */
 258 static void apprun_menu(GtkWidget *item, gpointer data)
 259 {
 260         guchar  *option;
 261         gchar *argv[3];
 262
 263         g_return_if_fail(current_app_path != NULL);
 264
 265         option = g_object_get_data(G_OBJECT(item), "option");
 266
 267         argv[0] = g_strconcat(current_app_path, "/AppRun", NULL);
 268         argv[1] = option;       /* (may be NULL) */
 269         argv[2] = NULL;
 270
 271         rox_spawn(NULL, (const gchar **) argv);
 272
 273         g_free(argv[0]);
 274 }
 275
 276 static void show_app_help(GtkWidget *item, gpointer data)
 277 {
 278         g_return_if_fail(current_app_path != NULL);
 279
 280         show_help_files(current_app_path);
 281 }
 282
 283 static void mnt_eject(GtkWidget *item, gpointer data)
 284 {
 285         GList *dirs;
 286
 287         g_return_if_fail(current_app_path != NULL);
 288         dirs = g_list_prepend(NULL, current_app_path);
 289         action_eject(dirs);
 290         g_list_free(dirs);
 291 }
 292
 293 static void customise_type(GtkWidget *item, MIME_type *type)
 294 {
 295         char *leaf;
 296         char *path;
 297
 298         leaf = g_strconcat(".", type->media_type, "_", type->subtype, NULL);
 299         path = choices_find_xdg_path_save(leaf, "SendTo", SITE, TRUE);
 300         g_free(leaf);
 301
 302         mkdir(path, 0755);
 303         filer_opendir(path, NULL, NULL);
 304         g_free(path);
 305
 306         info_message(_("Symlink any programs you want into this directory. "
 307                         "They will appear in the menu for all items of this "
 308                         "type (%s/%s)."), type->media_type, type->subtype);
 309 }
 310
 311 static void build_menu_for_type(MIME_type *type)
 312 {
 313         GPtrArray *names;
 314         char *path;
 315         int i;
 316         char *leaf;
 317         GtkWidget *item;
 318         DirItem *ditem;
 319
 320         leaf = g_strconcat(".", type->media_type, "_", type->subtype, NULL);
 321         path = choices_find_xdg_path_load(leaf, "SendTo", SITE);
 322
 323         if (!path)
 324                 goto out;
 325
 326         names = list_dir(path);
 327
 328         ditem = diritem_new("");
 329
 330         for (i = 0; i < names->len; i++)
 331         {
 332                 char    *leaf = names->pdata[i];
 333                 char    *full_path;
 334
 335                 full_path = g_build_filename(path, leaf, NULL);
 336                 diritem_restat(full_path, ditem, NULL);
 337
 338                 item = make_send_to_item(ditem, leaf, MIS_SMALL);
 339                 current_items = g_list_prepend(current_items, item);
 340                 gtk_widget_show(item);
 341                 g_signal_connect_data(item, "activate", G_CALLBACK(send_to),
 342                                 full_path, (GClosureNotify) g_free, 0);
 343         }
 344
 345         g_ptr_array_free(names, TRUE);
 346
 347         g_free(path);
 348
 349 out:
 350         item = gtk_menu_item_new_with_label(_("Customise Menu..."));
 351         current_items = g_list_prepend(current_items, item);
 352         g_signal_connect(item, "activate", G_CALLBACK(customise_type), type);
 353         gtk_widget_show(item);
 354
 355         g_free(leaf);
 356 }
 357
 358 static inline gboolean is_dir(const char *dir)
 359 {
 360         struct stat info;
 361         return stat(dir, &info) == 0 && S_ISDIR(info.st_mode);
 362 }
 363
 364 /* Adds to current_items */
 365 static void build_app_menu(const char *app_dir, DirItem *app_item)
 366 {
 367         XMLwrapper      *ai = NULL;
 368         xmlNode *node;
 369         GtkWidget *item;
 370         char *help_dir;
 371
 372         ai = appinfo_get(app_dir, app_item);
 373         if (ai)
 374         {
 375                 node = xml_get_section(ai, NULL, "AppMenu");
 376                 if (node)
 377                         node = node->xmlChildrenNode;
 378         }
 379         else
 380         {
 381                 if (app_item->flags & ITEM_FLAG_APPDIR)
 382                         node = NULL;
 383                 else
 384                 {
 385                         /* Not an application AND no AppInfo */
 386                         build_menu_for_type(app_item->mime_type);
 387                         return;
 388                 }
 389         }
 390
 391         /* Add the menu entries */
 392         for (; node; node = node->next)
 393         {
 394                 item = create_menu_item(node);
 395
 396                 if (item)
 397                         current_items = g_list_prepend(current_items, item);
 398         }
 399
 400         help_dir = g_build_filename(app_dir, "Help", NULL);
 401         if (is_dir(help_dir))
 402         {
 403                 item = gtk_image_menu_item_new_from_stock(GTK_STOCK_HELP, NULL);
 404                 gtk_widget_show(item);
 405                 current_items = g_list_prepend(current_items, item);
 406                 g_signal_connect(item, "activate", G_CALLBACK(show_app_help), NULL);
 407                 gtk_label_set_text(GTK_LABEL(GTK_BIN(item)->child), _("Help"));
 408         }
 409         g_free(help_dir);
 410
 411         if (ai)
 412                 g_object_unref(ai);
 413 }