ROX-Filer/src/appmenu.c

   1 /*
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * Copyright (C) 2003, the ROX-Filer team.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19  * Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 /* appmenu.c - handles application-specific menus read from XMLwrapper.xml */
  23
  24 /* XXX: This handles all File menu extensions. Needs renaming! */
  25
  26 #include "config.h"
  27
  28 #include <gtk/gtk.h>
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <ctype.h>
  33
  34 #include <libxml/parser.h>
  35
  36 #include "global.h"
  37
  38 #include "choices.h"
  39 #include "fscache.h"
  40 #include "gui_support.h"
  41 #include "support.h"
  42 #include "menu.h"
  43 #include "filer.h"
  44 #include "appmenu.h"
  45 #include "dir.h"
  46 #include "type.h"
  47 #include "appinfo.h"
  48 #include "xml.h"
  49 #include "run.h"
  50 #include "diritem.h"
  51 #include "action.h"
  52 #include "options.h"
  53
  54 /* Static prototypes */
  55 static void apprun_menu(GtkWidget *item, gpointer data);
  56 static GtkWidget *create_menu_item(xmlNode *node);
  57 static void show_app_help(GtkWidget *item, gpointer data);
  58 static void build_app_menu(const char *app_dir, DirItem *app_item);
  59 static void mnt_eject(GtkWidget *item, gpointer data);
  60
  61 /* There can only be one menu open at a time... we store: */
  62 static GtkWidget *current_menu = NULL;  /* The GtkMenu */
  63 static guchar *current_app_path = NULL; /* The path of the application */
  64 static GList *current_items = NULL;     /* The GtkMenuItems we added directly
  65                                          * to it --- not submenu items.
  66                                          */
  67 /****************************************************************
  68  *                      EXTERNAL INTERFACE                      *
  69  ****************************************************************/
  70
  71 /* Removes all appmenu menu items */
  72 void appmenu_remove(void)
  73 {
  74         GList *next;
  75
  76         if (!current_menu)
  77                 return;
  78
  79         for (next = current_items; next; next = next->next)
  80                 gtk_widget_destroy((GtkWidget *) next->data);
  81
  82         null_g_free(&current_app_path);
  83         current_menu = NULL;
  84
  85         g_list_free(current_items);
  86         current_items = NULL;
  87 }
  88
  89 /* Add AppMenu entries to 'menu', if appropriate.
  90  * This function modifies the menu stored in "menu".
  91  * 'app_dir' is the pathname of the application directory, and 'item'
  92  * is the corresponding DirItem.
  93  * Call appmenu_remove() to undo the effect.
  94  */
  95 void appmenu_add(const gchar *app_dir, DirItem *app_item, GtkWidget *menu)
  96 {
  97         GList   *next;
  98         GtkWidget *sep;
  99
 100         g_return_if_fail(menu != NULL);
 101
 102         /* Should have called appmenu_remove() already... */
 103         g_return_if_fail(current_menu == NULL);
 104         g_return_if_fail(current_items == NULL);
 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                 gtk_menu_shell_prepend(GTK_MENU_SHELL(menu),
 126                                         GTK_WIDGET(next->data));
 127
 128         current_menu = menu;
 129         current_app_path = g_strdup(app_dir);
 130 }
 131
 132
 133 /****************************************************************
 134  *                      INTERNAL FUNCTIONS                      *
 135  ****************************************************************/
 136
 137 /* Create a new menu and return it */
 138 static GtkWidget *appmenu_add_submenu(xmlNode *subm_node)
 139 {
 140         xmlNode *node;
 141         GtkWidget *sub_menu;
 142
 143         /* Create the new submenu */
 144         sub_menu = gtk_menu_new();
 145
 146         /* Add the menu entries */
 147         for (node = subm_node->xmlChildrenNode; node; node = node->next)
 148         {
 149                 GtkWidget *item;
 150
 151                 item = create_menu_item(node);
 152                 if (item)
 153                         gtk_menu_shell_append(GTK_MENU_SHELL(sub_menu), item);
 154         }
 155
 156         return sub_menu;
 157 }
 158
 159 /* Create and return a menu item */
 160 static GtkWidget *create_menu_item(xmlNode *node)
 161 {
 162         GtkWidget *item;
 163         xmlNode *label_node;
 164         guchar  *label, *option = NULL;
 165         gboolean is_submenu;
 166
 167         if (node->type != XML_ELEMENT_NODE)
 168                 return NULL;
 169
 170         if (strcmp(node->name, "Item") == 0)
 171         {
 172                 is_submenu = FALSE;
 173                 option = xmlGetProp(node, "option");
 174         }
 175         else if (strcmp(node->name, "AppMenu") == 0)
 176                 is_submenu = TRUE;
 177         else
 178                 return NULL;
 179
 180         /* Create the item */
 181         label_node = get_subnode(node, NULL, "Label");
 182         if (label_node)
 183         {
 184                 label = xmlNodeListGetString(label_node->doc,
 185                                         label_node->xmlChildrenNode, 1);
 186         }
 187         else
 188         {
 189                 label = xmlGetProp(node, "label");
 190                 if (!label)
 191                         label = g_strdup(_("<missing label>"));
 192         }
 193         item = gtk_menu_item_new_with_label(label);
 194
 195         gtk_widget_set_accel_path(item, NULL, NULL);    /* XXX */
 196
 197         g_free(label);
 198
 199         if (is_submenu)
 200         {
 201                 /* Add submenu items */
 202
 203                 gtk_menu_item_set_submenu(GTK_MENU_ITEM(item),
 204                                           appmenu_add_submenu(node));
 205         }
 206         else
 207         {
 208                 /* Set up callback */
 209
 210                 if (option)
 211                 {
 212                         g_object_set_data_full(G_OBJECT(item), "option",
 213                                         g_strdup(option),
 214                                         g_free);
 215                         g_free(option);
 216                 }
 217
 218                 g_signal_connect(item, "activate", G_CALLBACK(apprun_menu),
 219                                 NULL);
 220         }
 221
 222         gtk_widget_show(item);
 223
 224         return item;
 225 }
 226
 227 /* Send to current_app_path (though not actually an app) */
 228 static void send_to(GtkWidget *item, const char *app)
 229 {
 230         GList *file_list;
 231
 232         g_return_if_fail(current_app_path != NULL);
 233
 234         file_list = g_list_prepend(NULL, current_app_path);
 235         run_with_files(app, file_list);
 236         g_list_free(file_list);
 237 }
 238
 239 /* Function called to execute an AppMenu item */
 240 static void apprun_menu(GtkWidget *item, gpointer data)
 241 {
 242         guchar  *option;
 243         gchar *argv[3];
 244
 245         g_return_if_fail(current_app_path != NULL);
 246
 247         option = g_object_get_data(G_OBJECT(item), "option");
 248
 249         argv[0] = g_strconcat(current_app_path, "/AppRun", NULL);
 250         argv[1] = option;       /* (may be NULL) */
 251         argv[2] = NULL;
 252
 253         rox_spawn(NULL, (const gchar **) argv);
 254
 255         g_free(argv[0]);
 256 }
 257
 258 static void show_app_help(GtkWidget *item, gpointer data)
 259 {
 260         g_return_if_fail(current_app_path != NULL);
 261
 262         show_help_files(current_app_path);
 263 }
 264
 265 static void mnt_eject(GtkWidget *item, gpointer data)
 266 {
 267         GList *dirs;
 268
 269         g_return_if_fail(current_app_path != NULL);
 270         dirs = g_list_prepend(NULL, current_app_path);
 271         action_eject(dirs);
 272         g_list_free(dirs);
 273 }
 274
 275 static void customise_type(GtkWidget *item, MIME_type *type)
 276 {
 277         char *leaf;
 278         char *path;
 279
 280         leaf = g_strconcat(".", type->media_type, "_", type->subtype, NULL);
 281         path = choices_find_path_save(leaf, "SendTo", TRUE);
 282         g_free(leaf);
 283
 284         mkdir(path, 0755);
 285         filer_opendir(path, NULL, NULL);
 286         g_free(path);
 287
 288         info_message(_("Symlink any programs you want into this directory. "
 289                         "They will appear in the menu for all items of this "
 290                         "type (%s/%s)."), type->media_type, type->subtype);
 291 }
 292
 293 static void build_menu_for_type(MIME_type *type)
 294 {
 295         GPtrArray *names;
 296         char *path;
 297         int i;
 298         char *leaf;
 299         GtkWidget *item;
 300         DirItem *ditem;
 301
 302         leaf = g_strconcat(".", type->media_type, "_", type->subtype, NULL);
 303         path = choices_find_path_load(leaf, "SendTo");
 304
 305         if (!path)
 306                 goto out;
 307
 308         names = list_dir(path);
 309
 310         ditem = diritem_new("");
 311
 312         for (i = 0; i < names->len; i++)
 313         {
 314                 char    *leaf = names->pdata[i];
 315                 char    *full_path;
 316
 317                 full_path = g_build_filename(path, leaf, NULL);
 318                 diritem_restat(full_path, ditem, NULL);
 319
 320                 item = make_send_to_item(ditem, leaf, MIS_SMALL);
 321                 current_items = g_list_prepend(current_items, item);
 322                 gtk_widget_show(item);
 323                 g_signal_connect_data(item, "activate", G_CALLBACK(send_to),
 324                                 full_path, (GClosureNotify) g_free, 0);
 325         }
 326
 327         g_ptr_array_free(names, TRUE);
 328
 329         g_free(path);
 330
 331 out:
 332         item = gtk_menu_item_new_with_label(_("Customise Menu..."));
 333         current_items = g_list_prepend(current_items, item);
 334         g_signal_connect(item, "activate", G_CALLBACK(customise_type), type);
 335         gtk_widget_show(item);
 336
 337         g_free(leaf);
 338 }
 339
 340 /* Adds to current_items */
 341 static void build_app_menu(const char *app_dir, DirItem *app_item)
 342 {
 343         XMLwrapper      *ai = NULL;
 344         xmlNode *node;
 345         GtkWidget *item;
 346
 347         ai = appinfo_get(app_dir, app_item);
 348         if (ai)
 349         {
 350                 node = xml_get_section(ai, NULL, "AppMenu");
 351                 if (node)
 352                         node = node->xmlChildrenNode;
 353         }
 354         else
 355         {
 356                 if (app_item->flags & ITEM_FLAG_APPDIR)
 357                         node = NULL;
 358                 else
 359                 {
 360                         /* Not an application AND no AppInfo */
 361                         build_menu_for_type(app_item->mime_type);
 362                         return;
 363                 }
 364         }
 365
 366         /* Add the menu entries */
 367         for (; node; node = node->next)
 368         {
 369                 item = create_menu_item(node);
 370
 371                 if (item)
 372                         current_items = g_list_prepend(current_items, item);
 373         }
 374
 375         item = gtk_image_menu_item_new_from_stock(GTK_STOCK_HELP, NULL);
 376         gtk_widget_show(item);
 377         current_items = g_list_prepend(current_items, item);
 378         g_signal_connect(item, "activate", G_CALLBACK(show_app_help), NULL);
 379         gtk_label_set_text(GTK_LABEL(GTK_BIN(item)->child), _("Help"));
 380
 381         if (ai)
 382                 g_object_unref(ai);
 383 }