Pileus Git - ~andy/gtk/blob - examples/plugman.c

   1 #include <stdlib.h>
   2 #include <gtk/gtk.h>
   3
   4 static void
   5 activate_toggle (GSimpleAction *action,
   6                  GVariant      *parameter,
   7                  gpointer       user_data)
   8 {
   9   GVariant *state;
  10
  11   state = g_action_get_state (G_ACTION (action));
  12   g_action_change_state (G_ACTION (action), g_variant_new_boolean (!g_variant_get_boolean (state)));
  13   g_variant_unref (state);
  14 }
  15
  16 static void
  17 change_fullscreen_state (GSimpleAction *action,
  18                          GVariant      *state,
  19                          gpointer       user_data)
  20 {
  21   if (g_variant_get_boolean (state))
  22     gtk_window_fullscreen (user_data);
  23   else
  24     gtk_window_unfullscreen (user_data);
  25
  26   g_simple_action_set_state (action, state);
  27 }
  28
  29 static GtkClipboard *
  30 get_clipboard (GtkWidget *widget)
  31 {
  32   return gtk_widget_get_clipboard (widget, gdk_atom_intern_static_string ("CLIPBOARD"));
  33 }
  34
  35 static void
  36 window_copy (GSimpleAction *action,
  37              GVariant      *parameter,
  38              gpointer       user_data)
  39 {
  40   GtkWindow *window = GTK_WINDOW (user_data);
  41   GtkTextView *text = g_object_get_data ((GObject*)window, "plugman-text");
  42
  43   gtk_text_buffer_copy_clipboard (gtk_text_view_get_buffer (text),
  44                                   get_clipboard ((GtkWidget*) text));
  45 }
  46
  47 static void
  48 window_paste (GSimpleAction *action,
  49               GVariant      *parameter,
  50               gpointer       user_data)
  51 {
  52   GtkWindow *window = GTK_WINDOW (user_data);
  53   GtkTextView *text = g_object_get_data ((GObject*)window, "plugman-text");
  54
  55   gtk_text_buffer_paste_clipboard (gtk_text_view_get_buffer (text),
  56                                    get_clipboard ((GtkWidget*) text),
  57                                    NULL,
  58                                    TRUE);
  59
  60 }
  61
  62 static GActionEntry win_entries[] = {
  63   { "copy", window_copy, NULL, NULL, NULL },
  64   { "paste", window_paste, NULL, NULL, NULL },
  65   { "fullscreen", activate_toggle, NULL, "false", change_fullscreen_state }
  66 };
  67
  68 static void
  69 new_window (GApplication *app,
  70             GFile        *file)
  71 {
  72   GtkWidget *window, *grid, *scrolled, *view;
  73
  74   window = gtk_application_window_new (GTK_APPLICATION (app));
  75   gtk_window_set_default_size ((GtkWindow*)window, 640, 480);
  76   g_action_map_add_action_entries (G_ACTION_MAP (window), win_entries, G_N_ELEMENTS (win_entries), window);
  77   gtk_window_set_title (GTK_WINDOW (window), "Plugman");
  78
  79   grid = gtk_grid_new ();
  80   gtk_container_add (GTK_CONTAINER (window), grid);
  81
  82   scrolled = gtk_scrolled_window_new (NULL, NULL);
  83   gtk_widget_set_hexpand (scrolled, TRUE);
  84   gtk_widget_set_vexpand (scrolled, TRUE);
  85   view = gtk_text_view_new ();
  86
  87   g_object_set_data ((GObject*)window, "plugman-text", view);
  88
  89   gtk_container_add (GTK_CONTAINER (scrolled), view);
  90
  91   gtk_grid_attach (GTK_GRID (grid), scrolled, 0, 0, 1, 1);
  92
  93   if (file != NULL)
  94     {
  95       gchar *contents;
  96       gsize length;
  97
  98       if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
  99         {
 100           GtkTextBuffer *buffer;
 101
 102           buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 103           gtk_text_buffer_set_text (buffer, contents, length);
 104           g_free (contents);
 105         }
 106     }
 107
 108   gtk_widget_show_all (GTK_WIDGET (window));
 109 }
 110
 111 static void
 112 plug_man_activate (GApplication *application)
 113 {
 114   new_window (application, NULL);
 115 }
 116
 117 static void
 118 plug_man_open (GApplication  *application,
 119                 GFile        **files,
 120                 gint           n_files,
 121                 const gchar   *hint)
 122 {
 123   gint i;
 124
 125   for (i = 0; i < n_files; i++)
 126     new_window (application, files[i]);
 127 }
 128
 129 typedef GtkApplication PlugMan;
 130 typedef GtkApplicationClass PlugManClass;
 131
 132 G_DEFINE_TYPE (PlugMan, plug_man, GTK_TYPE_APPLICATION)
 133
 134 static void
 135 plug_man_finalize (GObject *object)
 136 {
 137   G_OBJECT_CLASS (plug_man_parent_class)->finalize (object);
 138 }
 139
 140 static void
 141 show_about (GSimpleAction *action,
 142             GVariant      *parameter,
 143             gpointer       user_data)
 144 {
 145   gtk_show_about_dialog (NULL,
 146                          "program-name", "Plugman",
 147                          "title", "About Plugman",
 148                          "comments", "A cheap Bloatpad clone.",
 149                          NULL);
 150 }
 151
 152
 153 static void
 154 quit_app (GSimpleAction *action,
 155           GVariant      *parameter,
 156           gpointer       user_data)
 157 {
 158   GList *list, *next;
 159   GtkWindow *win;
 160
 161   g_print ("Going down...\n");
 162
 163   list = gtk_application_get_windows (GTK_APPLICATION (g_application_get_default ()));
 164   while (list)
 165     {
 166       win = list->data;
 167       next = list->next;
 168
 169       gtk_widget_destroy (GTK_WIDGET (win));
 170
 171       list = next;
 172     }
 173 }
 174
 175 static gboolean is_red_plugin_enabled;
 176 static gboolean is_black_plugin_enabled;
 177
 178 static gboolean
 179 plugin_enabled (const gchar *name)
 180 {
 181   if (g_strcmp0 (name, "red") == 0)
 182     return is_red_plugin_enabled;
 183   else
 184     return is_black_plugin_enabled;
 185 }
 186
 187 static GMenuModel *
 188 find_plugin_menu (void)
 189 {
 190   GMenuModel *menubar;
 191   GMenuModel *menu;
 192   gint i, j;
 193   const gchar *label, *id;
 194
 195   menubar = g_application_get_menubar (g_application_get_default ());
 196   for (i = 0; i < g_menu_model_get_n_items (menubar); i++)
 197     {
 198        if (g_menu_model_get_item_attribute (menubar, i, "label", "s", &label) &&
 199            g_strcmp0 (label, "_Edit") == 0)
 200          {
 201             menu = g_menu_model_get_item_link (menubar, i, "submenu");
 202             for (j = 0; j < g_menu_model_get_n_items (menu); j++)
 203               {
 204                 if (g_menu_model_get_item_attribute (menu, j, "id", "s", &id) &&
 205                     g_strcmp0 (id, "plugins") == 0)
 206                   {
 207                     return g_menu_model_get_item_link (menu, j, "section");
 208                   }
 209               }
 210          }
 211     }
 212
 213   return NULL;
 214 }
 215
 216 static void
 217 plugin_action (GAction  *action,
 218                GVariant *parameter,
 219                gpointer  data)
 220 {
 221   GApplication *app;
 222   GList *list;
 223   GtkWindow *window;
 224   GtkWidget *text;
 225   GdkRGBA color;
 226
 227   app = g_application_get_default ();
 228   list = gtk_application_get_windows (GTK_APPLICATION (app));
 229   window = GTK_WINDOW (list->data);
 230   text = g_object_get_data ((GObject*)window, "plugman-text");
 231
 232   gdk_rgba_parse (&color, g_action_get_name (action));
 233
 234   gtk_widget_override_color (text, 0, &color);
 235 }
 236
 237 static void
 238 enable_plugin (const gchar *name)
 239 {
 240   GMenuModel *plugin_menu;
 241   GAction *action;
 242
 243   g_print ("Enabling '%s' plugin\n", name);
 244
 245   action = (GAction *)g_simple_action_new (name, NULL);
 246   g_signal_connect (action, "activate", G_CALLBACK (plugin_action), (gpointer)name);
 247   g_action_map_add_action (G_ACTION_MAP (g_application_get_default ()), action);
 248   g_print ("Actions of '%s' plugin added\n", name);
 249
 250   plugin_menu = find_plugin_menu ();
 251   if (plugin_menu)
 252     {
 253       GMenu *section;
 254       GMenuItem *item;
 255       gchar *label;
 256       gchar *action;
 257
 258       section = g_menu_new ();
 259       label = g_strdup_printf ("Turn text %s", name);
 260       action = g_strconcat ("app.", name, NULL);
 261       g_menu_insert (section, 0, label, action);
 262       g_free (label);
 263       g_free (action);
 264       item = g_menu_item_new_section (NULL, (GMenuModel*)section);
 265       g_menu_item_set_attribute (item, "id", "s", name);
 266       g_menu_append_item (G_MENU (plugin_menu), item);
 267       g_object_unref (item);
 268       g_object_unref (section);
 269       g_print ("Menus of '%s' plugin added\n", name);
 270     }
 271   else
 272     g_warning ("Plugin menu not found\n");
 273
 274   if (g_strcmp0 (name, "red") == 0)
 275     is_red_plugin_enabled = TRUE;
 276   else
 277     is_black_plugin_enabled = TRUE;
 278 }
 279
 280 static void
 281 disable_plugin (const gchar *name)
 282 {
 283   GMenuModel *plugin_menu;
 284
 285   g_print ("Disabling '%s' plugin\n", name);
 286
 287   plugin_menu = find_plugin_menu ();
 288   if (plugin_menu)
 289     {
 290       const gchar *id;
 291       gint i;
 292
 293       for (i = 0; i < g_menu_model_get_n_items (plugin_menu); i++)
 294         {
 295            if (g_menu_model_get_item_attribute (plugin_menu, i, "id", "s", &id) &&
 296                g_strcmp0 (id, name) == 0)
 297              {
 298                g_menu_remove (G_MENU (plugin_menu), i);
 299                g_print ("Menus of '%s' plugin removed\n", name);
 300              }
 301         }
 302     }
 303   else
 304     g_warning ("Plugin menu not found\n");
 305
 306   g_action_map_remove_action (G_ACTION_MAP (g_application_get_default ()), name);
 307   g_print ("Actions of '%s' plugin removed\n", name);
 308
 309   if (g_strcmp0 (name, "red") == 0)
 310     is_red_plugin_enabled = FALSE;
 311   else
 312     is_black_plugin_enabled = FALSE;
 313 }
 314
 315 static void
 316 enable_or_disable_plugin (GtkToggleButton *button,
 317                           const gchar     *name)
 318 {
 319   if (plugin_enabled (name))
 320     disable_plugin (name);
 321   else
 322     enable_plugin (name);
 323 }
 324
 325
 326 static void
 327 configure_plugins (GSimpleAction *action,
 328                    GVariant      *parameter,
 329                    gpointer       user_data)
 330 {
 331   GtkBuilder *builder;
 332   GtkWidget *dialog;
 333   GtkWidget *check;
 334   GError *error = NULL;
 335
 336   builder = gtk_builder_new ();
 337   gtk_builder_add_from_string (builder,
 338                                "<interface>"
 339                                "  <object class='GtkDialog' id='plugin-dialog'>"
 340                                "    <property name='border-width'>12</property>"
 341                                "    <property name='title'>Plugins</property>"
 342                                "    <child internal-child='vbox'>"
 343                                "      <object class='GtkBox' id='content-area'>"
 344                                "        <property name='visible'>True</property>"
 345                                "        <child>"
 346                                "          <object class='GtkCheckButton' id='red-plugin'>"
 347                                "            <property name='label'>Red Plugin - turn your text red</property>"
 348                                "            <property name='visible'>True</property>"
 349                                "          </object>"
 350                                "        </child>"
 351                                "        <child>"
 352                                "          <object class='GtkCheckButton' id='black-plugin'>"
 353                                "            <property name='label'>Black Plugin - turn your text black</property>"
 354                                "            <property name='visible'>True</property>"
 355                                "          </object>"
 356                                "        </child>"
 357                                "      </object>"
 358                                "    </child>"
 359                                "    <child internal-child='action_area'>"
 360                                "      <object class='GtkButtonBox' id='action-area'>"
 361                                "        <property name='visible'>True</property>"
 362                                "        <child>"
 363                                "          <object class='GtkButton' id='close-button'>"
 364                                "            <property name='label'>Close</property>"
 365                                "            <property name='visible'>True</property>"
 366                                "          </object>"
 367                                "        </child>"
 368                                "      </object>"
 369                                "    </child>"
 370                                "    <action-widgets>"
 371                                "      <action-widget response='-5'>close-button</action-widget>"
 372                                "    </action-widgets>"
 373                                "  </object>"
 374                                "</interface>", -1, &error);
 375   if (error)
 376     {
 377       g_warning ("%s", error->message);
 378       g_error_free (error);
 379       return;
 380     }
 381
 382   dialog = (GtkWidget *)gtk_builder_get_object (builder, "plugin-dialog");
 383   check = (GtkWidget *)gtk_builder_get_object (builder, "red-plugin");
 384   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), plugin_enabled ("red"));
 385   g_signal_connect (check, "toggled", G_CALLBACK (enable_or_disable_plugin), "red");
 386   check = (GtkWidget *)gtk_builder_get_object (builder, "black-plugin");
 387   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), plugin_enabled ("black"));
 388   g_signal_connect (check, "toggled", G_CALLBACK (enable_or_disable_plugin), "black");
 389
 390   g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
 391
 392   gtk_window_present (GTK_WINDOW (dialog));
 393 }
 394
 395 static GActionEntry app_entries[] = {
 396   { "about", show_about, NULL, NULL, NULL },
 397   { "quit", quit_app, NULL, NULL, NULL },
 398   { "plugins", configure_plugins, NULL, NULL, NULL },
 399 };
 400
 401 static void
 402 plug_man_startup (GApplication *application)
 403 {
 404   GtkBuilder *builder;
 405
 406   G_APPLICATION_CLASS (plug_man_parent_class)
 407     ->startup (application);
 408
 409   g_action_map_add_action_entries (G_ACTION_MAP (application), app_entries, G_N_ELEMENTS (app_entries), application);
 410
 411   builder = gtk_builder_new ();
 412   gtk_builder_add_from_string (builder,
 413                                "<interface>"
 414                                "  <menu id='app-menu'>"
 415                                "    <section>"
 416                                "      <item label='_About Plugman' action='app.about'/>"
 417                                "    </section>"
 418                                "    <section>"
 419                                "      <item label='_Quit' action='app.quit' accel='<Primary>q'/>"
 420                                "    </section>"
 421                                "  </menu>"
 422                                "  <menu id='menubar'>"
 423                                "    <submenu label='_Edit'>"
 424                                "      <section>"
 425                                "        <item label='_Copy' action='win.copy'/>"
 426                                "        <item label='_Paste' action='win.paste'/>"
 427                                "      </section>"
 428                                "      <section id='plugins'>"
 429                                "      </section>"
 430                                "      <section>"
 431                                "        <item label='Plugins' action='app.plugins'/>"
 432                                "      </section>"
 433                                "    </submenu>"
 434                                "    <submenu label='_View'>"
 435                                "      <section>"
 436                                "        <item label='_Fullscreen' action='win.fullscreen'/>"
 437                                "      </section>"
 438                                "    </submenu>"
 439                                "  </menu>"
 440                                "</interface>", -1, NULL);
 441   g_application_set_app_menu (application, G_MENU_MODEL (gtk_builder_get_object (builder, "app-menu")));
 442   g_application_set_menubar (application, G_MENU_MODEL (gtk_builder_get_object (builder, "menubar")));
 443   g_object_unref (builder);
 444 }
 445
 446 static void
 447 plug_man_init (PlugMan *app)
 448 {
 449 }
 450
 451 static void
 452 plug_man_class_init (PlugManClass *class)
 453 {
 454   GApplicationClass *application_class = G_APPLICATION_CLASS (class);
 455   GObjectClass *object_class = G_OBJECT_CLASS (class);
 456
 457   application_class->startup = plug_man_startup;
 458   application_class->activate = plug_man_activate;
 459   application_class->open = plug_man_open;
 460
 461   object_class->finalize = plug_man_finalize;
 462
 463 }
 464
 465 PlugMan *
 466 plug_man_new (void)
 467 {
 468   g_type_init ();
 469
 470   return g_object_new (plug_man_get_type (),
 471                        "application-id", "org.gtk.Test.plugman",
 472                        "flags", G_APPLICATION_HANDLES_OPEN,
 473                        NULL);
 474 }
 475
 476 int
 477 main (int argc, char **argv)
 478 {
 479   PlugMan *plug_man;
 480   int status;
 481
 482   plug_man = plug_man_new ();
 483   gtk_application_add_accelerator (GTK_APPLICATION (plug_man),
 484                                    "F11", "win.fullscreen", NULL);
 485   status = g_application_run (G_APPLICATION (plug_man), argc, argv);
 486   g_object_unref (plug_man);
 487
 488   return status;
 489 }