1 /*
2  * This file is part of gtkD.
3  *
4  * gtkD is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License
6  * as published by the Free Software Foundation; either version 3
7  * of the License, or (at your option) any later version, with
8  * some exceptions, please read the COPYING file.
9  *
10  * gtkD is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public License
16  * along with gtkD; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
18  */
19 
20 // generated automatically - do not change
21 // find conversion definition on APILookup.txt
22 // implement new conversion functionalities on the wrap.utils pakage
23 
24 
25 module gio.Application;
26 
27 private import gio.ActionGroupIF;
28 private import gio.ActionGroupT;
29 private import gio.ActionMapIF;
30 private import gio.ActionMapT;
31 private import gio.ApplicationCommandLine;
32 private import gio.Cancellable;
33 private import gio.DBusConnection;
34 private import gio.File;
35 private import gio.FileIF;
36 private import gio.Notification;
37 private import glib.ConstructionException;
38 private import glib.ErrorG;
39 private import glib.GException;
40 private import glib.OptionGroup;
41 private import glib.Str;
42 private import glib.VariantDict;
43 private import gobject.ObjectG;
44 private import gobject.Signals;
45 private import gtkc.gio;
46 public  import gtkc.giotypes;
47 private import std.algorithm;
48 
49 
50 /**
51  * A #GApplication is the foundation of an application.  It wraps some
52  * low-level platform-specific services and is intended to act as the
53  * foundation for higher-level application classes such as
54  * #GtkApplication or #MxApplication.  In general, you should not use
55  * this class outside of a higher level framework.
56  * 
57  * GApplication provides convenient life cycle management by maintaining
58  * a "use count" for the primary application instance. The use count can
59  * be changed using g_application_hold() and g_application_release(). If
60  * it drops to zero, the application exits. Higher-level classes such as
61  * #GtkApplication employ the use count to ensure that the application
62  * stays alive as long as it has any opened windows.
63  * 
64  * Another feature that GApplication (optionally) provides is process
65  * uniqueness. Applications can make use of this functionality by
66  * providing a unique application ID. If given, only one application
67  * with this ID can be running at a time per session. The session
68  * concept is platform-dependent, but corresponds roughly to a graphical
69  * desktop login. When your application is launched again, its
70  * arguments are passed through platform communication to the already
71  * running program. The already running instance of the program is
72  * called the "primary instance"; for non-unique applications this is
73  * the always the current instance. On Linux, the D-Bus session bus
74  * is used for communication.
75  * 
76  * The use of #GApplication differs from some other commonly-used
77  * uniqueness libraries (such as libunique) in important ways. The
78  * application is not expected to manually register itself and check
79  * if it is the primary instance. Instead, the main() function of a
80  * #GApplication should do very little more than instantiating the
81  * application instance, possibly connecting signal handlers, then
82  * calling g_application_run(). All checks for uniqueness are done
83  * internally. If the application is the primary instance then the
84  * startup signal is emitted and the mainloop runs. If the application
85  * is not the primary instance then a signal is sent to the primary
86  * instance and g_application_run() promptly returns. See the code
87  * examples below.
88  * 
89  * If used, the expected form of an application identifier is very close
90  * to that of of a
91  * [D-Bus bus name](http://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-interface).
92  * Examples include: "com.example.MyApp", "org.example.internal-apps.Calculator".
93  * For details on valid application identifiers, see g_application_id_is_valid().
94  * 
95  * On Linux, the application identifier is claimed as a well-known bus name
96  * on the user's session bus.  This means that the uniqueness of your
97  * application is scoped to the current session.  It also means that your
98  * application may provide additional services (through registration of other
99  * object paths) at that bus name.  The registration of these object paths
100  * should be done with the shared GDBus session bus.  Note that due to the
101  * internal architecture of GDBus, method calls can be dispatched at any time
102  * (even if a main loop is not running).  For this reason, you must ensure that
103  * any object paths that you wish to register are registered before #GApplication
104  * attempts to acquire the bus name of your application (which happens in
105  * g_application_register()).  Unfortunately, this means that you cannot use
106  * g_application_get_is_remote() to decide if you want to register object paths.
107  * 
108  * GApplication also implements the #GActionGroup and #GActionMap
109  * interfaces and lets you easily export actions by adding them with
110  * g_action_map_add_action(). When invoking an action by calling
111  * g_action_group_activate_action() on the application, it is always
112  * invoked in the primary instance. The actions are also exported on
113  * the session bus, and GIO provides the #GDBusActionGroup wrapper to
114  * conveniently access them remotely. GIO provides a #GDBusMenuModel wrapper
115  * for remote access to exported #GMenuModels.
116  * 
117  * There is a number of different entry points into a GApplication:
118  * 
119  * - via 'Activate' (i.e. just starting the application)
120  * 
121  * - via 'Open' (i.e. opening some files)
122  * 
123  * - by handling a command-line
124  * 
125  * - via activating an action
126  * 
127  * The #GApplication::startup signal lets you handle the application
128  * initialization for all of these in a single place.
129  * 
130  * Regardless of which of these entry points is used to start the
131  * application, GApplication passes some "platform data from the
132  * launching instance to the primary instance, in the form of a
133  * #GVariant dictionary mapping strings to variants. To use platform
134  * data, override the @before_emit or @after_emit virtual functions
135  * in your #GApplication subclass. When dealing with
136  * #GApplicationCommandLine objects, the platform data is
137  * directly available via g_application_command_line_get_cwd(),
138  * g_application_command_line_get_environ() and
139  * g_application_command_line_get_platform_data().
140  * 
141  * As the name indicates, the platform data may vary depending on the
142  * operating system, but it always includes the current directory (key
143  * "cwd"), and optionally the environment (ie the set of environment
144  * variables and their values) of the calling process (key "environ").
145  * The environment is only added to the platform data if the
146  * %G_APPLICATION_SEND_ENVIRONMENT flag is set. #GApplication subclasses
147  * can add their own platform data by overriding the @add_platform_data
148  * virtual function. For instance, #GtkApplication adds startup notification
149  * data in this way.
150  * 
151  * To parse commandline arguments you may handle the
152  * #GApplication::command-line signal or override the local_command_line()
153  * vfunc, to parse them in either the primary instance or the local instance,
154  * respectively.
155  * 
156  * For an example of opening files with a GApplication, see
157  * [gapplication-example-open.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-open.c).
158  * 
159  * For an example of using actions with GApplication, see
160  * [gapplication-example-actions.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-actions.c).
161  * 
162  * For an example of using extra D-Bus hooks with GApplication, see
163  * [gapplication-example-dbushooks.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-dbushooks.c).
164  *
165  * Since: 2.28
166  */
167 public class Application : ObjectG, ActionGroupIF, ActionMapIF
168 {
169 	/** the main Gtk struct */
170 	protected GApplication* gApplication;
171 
172 	/** Get the main Gtk struct */
173 	public GApplication* getApplicationStruct(bool transferOwnership = false)
174 	{
175 		if (transferOwnership)
176 			ownedRef = false;
177 		return gApplication;
178 	}
179 
180 	/** the main Gtk struct as a void* */
181 	protected override void* getStruct()
182 	{
183 		return cast(void*)gApplication;
184 	}
185 
186 	protected override void setStruct(GObject* obj)
187 	{
188 		gApplication = cast(GApplication*)obj;
189 		super.setStruct(obj);
190 	}
191 
192 	/**
193 	 * Sets our main struct and passes it to the parent class.
194 	 */
195 	public this (GApplication* gApplication, bool ownedRef = false)
196 	{
197 		this.gApplication = gApplication;
198 		super(cast(GObject*)gApplication, ownedRef);
199 	}
200 
201 	// add the ActionGroup capabilities
202 	mixin ActionGroupT!(GApplication);
203 
204 	// add the ActionMap capabilities
205 	mixin ActionMapT!(GApplication);
206 
207 	protected class ScopedOnCommandLineDelegateWrapper
208 	{
209 		int delegate(Scoped!ApplicationCommandLine, Application) dlg;
210 		gulong handlerId;
211 		
212 		this(int delegate(Scoped!ApplicationCommandLine, Application) dlg)
213 		{
214 			this.dlg = dlg;
215 			scopedOnCommandLineListeners ~= this;
216 		}
217 		
218 		void remove(ScopedOnCommandLineDelegateWrapper source)
219 		{
220 			foreach(index, wrapper; scopedOnCommandLineListeners)
221 			{
222 				if (wrapper.handlerId == source.handlerId)
223 				{
224 					scopedOnCommandLineListeners[index] = null;
225 					scopedOnCommandLineListeners = std.algorithm.remove(scopedOnCommandLineListeners, index);
226 					break;
227 				}
228 			}
229 		}
230 	}
231 	ScopedOnCommandLineDelegateWrapper[] scopedOnCommandLineListeners;
232 	
233 	/**
234 	 * The ::command-line signal is emitted on the primary instance when
235 	 * a commandline is not handled locally. See g_application_run() and
236 	 * the #GApplicationCommandLine documentation for more information.
237 	 *
238 	 * Params:
239 	 *     commandLine = a #GApplicationCommandLine representing the
240 	 *         passed commandline
241 	 *
242 	 * Return: An integer that is set as the exit status for the calling
243 	 *     process. See g_application_command_line_set_exit_status().
244 	 */
245 	gulong addOnCommandLine(int delegate(Scoped!ApplicationCommandLine, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
246 	{
247 		auto wrapper = new ScopedOnCommandLineDelegateWrapper(dlg);
248 		wrapper.handlerId = Signals.connectData(
249 			this,
250 			"command-line",
251 			cast(GCallback)&callBackScopedCommandLine,
252 			cast(void*)wrapper,
253 			cast(GClosureNotify)&callBackScopedCommandLineDestroy,
254 			connectFlags);
255 		return wrapper.handlerId;
256 	}
257 	
258 	extern(C) static int callBackScopedCommandLine(GApplication* applicationStruct, GApplicationCommandLine* commandLine, ScopedOnCommandLineDelegateWrapper wrapper)
259 	{
260 		return wrapper.dlg(scoped!ApplicationCommandLine(commandLine), wrapper.outer);
261 	}
262 	
263 	extern(C) static void callBackScopedCommandLineDestroy(ScopedOnCommandLineDelegateWrapper wrapper, GClosure* closure)
264 	{
265 		wrapper.remove(wrapper);
266 	}
267 
268 	/**
269 	 */
270 
271 	/** */
272 	public static GType getType()
273 	{
274 		return g_application_get_type();
275 	}
276 
277 	/**
278 	 * Creates a new #GApplication instance.
279 	 *
280 	 * If non-%NULL, the application id must be valid.  See
281 	 * g_application_id_is_valid().
282 	 *
283 	 * If no application ID is given then some features of #GApplication
284 	 * (most notably application uniqueness) will be disabled.
285 	 *
286 	 * Params:
287 	 *     applicationId = the application id
288 	 *     flags = the application flags
289 	 *
290 	 * Returns: a new #GApplication instance
291 	 *
292 	 * Throws: ConstructionException GTK+ fails to create the object.
293 	 */
294 	public this(string applicationId, GApplicationFlags flags)
295 	{
296 		auto p = g_application_new(Str.toStringz(applicationId), flags);
297 		
298 		if(p is null)
299 		{
300 			throw new ConstructionException("null returned by new");
301 		}
302 		
303 		this(cast(GApplication*) p, true);
304 	}
305 
306 	/**
307 	 * Returns the default #GApplication instance for this process.
308 	 *
309 	 * Normally there is only one #GApplication per process and it becomes
310 	 * the default when it is created.  You can exercise more control over
311 	 * this by using g_application_set_default().
312 	 *
313 	 * If there is no default application then %NULL is returned.
314 	 *
315 	 * Returns: the default application for this process, or %NULL
316 	 *
317 	 * Since: 2.32
318 	 */
319 	public static Application getDefault()
320 	{
321 		auto p = g_application_get_default();
322 		
323 		if(p is null)
324 		{
325 			return null;
326 		}
327 		
328 		return ObjectG.getDObject!(Application)(cast(GApplication*) p);
329 	}
330 
331 	/**
332 	 * Checks if @application_id is a valid application identifier.
333 	 *
334 	 * A valid ID is required for calls to g_application_new() and
335 	 * g_application_set_application_id().
336 	 *
337 	 * For convenience, the restrictions on application identifiers are
338 	 * reproduced here:
339 	 *
340 	 * - Application identifiers must contain only the ASCII characters
341 	 * "[A-Z][a-z][0-9]_-." and must not begin with a digit.
342 	 *
343 	 * - Application identifiers must contain at least one '.' (period)
344 	 * character (and thus at least three elements).
345 	 *
346 	 * - Application identifiers must not begin or end with a '.' (period)
347 	 * character.
348 	 *
349 	 * - Application identifiers must not contain consecutive '.' (period)
350 	 * characters.
351 	 *
352 	 * - Application identifiers must not exceed 255 characters.
353 	 *
354 	 * Params:
355 	 *     applicationId = a potential application identifier
356 	 *
357 	 * Returns: %TRUE if @application_id is valid
358 	 */
359 	public static bool idIsValid(string applicationId)
360 	{
361 		return g_application_id_is_valid(Str.toStringz(applicationId)) != 0;
362 	}
363 
364 	/**
365 	 * Activates the application.
366 	 *
367 	 * In essence, this results in the #GApplication::activate signal being
368 	 * emitted in the primary instance.
369 	 *
370 	 * The application must be registered before calling this function.
371 	 *
372 	 * Since: 2.28
373 	 */
374 	public void activate()
375 	{
376 		g_application_activate(gApplication);
377 	}
378 
379 	/**
380 	 * Add an option to be handled by @application.
381 	 *
382 	 * Calling this function is the equivalent of calling
383 	 * g_application_add_main_option_entries() with a single #GOptionEntry
384 	 * that has its arg_data member set to %NULL.
385 	 *
386 	 * The parsed arguments will be packed into a #GVariantDict which
387 	 * is passed to #GApplication::handle-local-options. If
388 	 * %G_APPLICATION_HANDLES_COMMAND_LINE is set, then it will also
389 	 * be sent to the primary instance. See
390 	 * g_application_add_main_option_entries() for more details.
391 	 *
392 	 * See #GOptionEntry for more documentation of the arguments.
393 	 *
394 	 * Params:
395 	 *     longName = the long name of an option used to specify it in a commandline
396 	 *     shortName = the short name of an option
397 	 *     flags = flags from #GOptionFlags
398 	 *     arg = the type of the option, as a #GOptionArg
399 	 *     description = the description for the option in `--help` output
400 	 *     argDescription = the placeholder to use for the extra argument
401 	 *         parsed by the option in `--help` output
402 	 *
403 	 * Since: 2.42
404 	 */
405 	public void addMainOption(string longName, char shortName, GOptionFlags flags, GOptionArg arg, string description, string argDescription)
406 	{
407 		g_application_add_main_option(gApplication, Str.toStringz(longName), shortName, flags, arg, Str.toStringz(description), Str.toStringz(argDescription));
408 	}
409 
410 	/**
411 	 * Adds main option entries to be handled by @application.
412 	 *
413 	 * This function is comparable to g_option_context_add_main_entries().
414 	 *
415 	 * After the commandline arguments are parsed, the
416 	 * #GApplication::handle-local-options signal will be emitted.  At this
417 	 * point, the application can inspect the values pointed to by @arg_data
418 	 * in the given #GOptionEntrys.
419 	 *
420 	 * Unlike #GOptionContext, #GApplication supports giving a %NULL
421 	 * @arg_data for a non-callback #GOptionEntry.  This results in the
422 	 * argument in question being packed into a #GVariantDict which is also
423 	 * passed to #GApplication::handle-local-options, where it can be
424 	 * inspected and modified.  If %G_APPLICATION_HANDLES_COMMAND_LINE is
425 	 * set, then the resulting dictionary is sent to the primary instance,
426 	 * where g_application_command_line_get_options_dict() will return it.
427 	 * This "packing" is done according to the type of the argument --
428 	 * booleans for normal flags, strings for strings, bytestrings for
429 	 * filenames, etc.  The packing only occurs if the flag is given (ie: we
430 	 * do not pack a "false" #GVariant in the case that a flag is missing).
431 	 *
432 	 * In general, it is recommended that all commandline arguments are
433 	 * parsed locally.  The options dictionary should then be used to
434 	 * transmit the result of the parsing to the primary instance, where
435 	 * g_variant_dict_lookup() can be used.  For local options, it is
436 	 * possible to either use @arg_data in the usual way, or to consult (and
437 	 * potentially remove) the option from the options dictionary.
438 	 *
439 	 * This function is new in GLib 2.40.  Before then, the only real choice
440 	 * was to send all of the commandline arguments (options and all) to the
441 	 * primary instance for handling.  #GApplication ignored them completely
442 	 * on the local side.  Calling this function "opts in" to the new
443 	 * behaviour, and in particular, means that unrecognised options will be
444 	 * treated as errors.  Unrecognised options have never been ignored when
445 	 * %G_APPLICATION_HANDLES_COMMAND_LINE is unset.
446 	 *
447 	 * If #GApplication::handle-local-options needs to see the list of
448 	 * filenames, then the use of %G_OPTION_REMAINING is recommended.  If
449 	 * @arg_data is %NULL then %G_OPTION_REMAINING can be used as a key into
450 	 * the options dictionary.  If you do use %G_OPTION_REMAINING then you
451 	 * need to handle these arguments for yourself because once they are
452 	 * consumed, they will no longer be visible to the default handling
453 	 * (which treats them as filenames to be opened).
454 	 *
455 	 * It is important to use the proper GVariant format when retrieving
456 	 * the options with g_variant_dict_lookup():
457 	 * - for %G_OPTION_ARG_NONE, use b
458 	 * - for %G_OPTION_ARG_STRING, use &s
459 	 * - for %G_OPTION_ARG_INT, use i
460 	 * - for %G_OPTION_ARG_INT64, use x
461 	 * - for %G_OPTION_ARG_DOUBLE, use d
462 	 * - for %G_OPTION_ARG_FILENAME, use ^ay
463 	 * - for %G_OPTION_ARG_STRING_ARRAY, use &as
464 	 * - for %G_OPTION_ARG_FILENAME_ARRAY, use ^aay
465 	 *
466 	 * Params:
467 	 *     entries = a
468 	 *         %NULL-terminated list of #GOptionEntrys
469 	 *
470 	 * Since: 2.40
471 	 */
472 	public void addMainOptionEntries(GOptionEntry[] entries)
473 	{
474 		g_application_add_main_option_entries(gApplication, entries.ptr);
475 	}
476 
477 	/**
478 	 * Adds a #GOptionGroup to the commandline handling of @application.
479 	 *
480 	 * This function is comparable to g_option_context_add_group().
481 	 *
482 	 * Unlike g_application_add_main_option_entries(), this function does
483 	 * not deal with %NULL @arg_data and never transmits options to the
484 	 * primary instance.
485 	 *
486 	 * The reason for that is because, by the time the options arrive at the
487 	 * primary instance, it is typically too late to do anything with them.
488 	 * Taking the GTK option group as an example: GTK will already have been
489 	 * initialised by the time the #GApplication::command-line handler runs.
490 	 * In the case that this is not the first-running instance of the
491 	 * application, the existing instance may already have been running for
492 	 * a very long time.
493 	 *
494 	 * This means that the options from #GOptionGroup are only really usable
495 	 * in the case that the instance of the application being run is the
496 	 * first instance.  Passing options like `--display=` or `--gdk-debug=`
497 	 * on future runs will have no effect on the existing primary instance.
498 	 *
499 	 * Calling this function will cause the options in the supplied option
500 	 * group to be parsed, but it does not cause you to be "opted in" to the
501 	 * new functionality whereby unrecognised options are rejected even if
502 	 * %G_APPLICATION_HANDLES_COMMAND_LINE was given.
503 	 *
504 	 * Params:
505 	 *     group = a #GOptionGroup
506 	 *
507 	 * Since: 2.40
508 	 */
509 	public void addOptionGroup(OptionGroup group)
510 	{
511 		g_application_add_option_group(gApplication, (group is null) ? null : group.getOptionGroupStruct(true));
512 	}
513 
514 	/**
515 	 * Marks @application as busy (see g_application_mark_busy()) while
516 	 * @property on @object is %TRUE.
517 	 *
518 	 * The binding holds a reference to @application while it is active, but
519 	 * not to @object. Instead, the binding is destroyed when @object is
520 	 * finalized.
521 	 *
522 	 * Params:
523 	 *     object = a #GObject
524 	 *     property = the name of a boolean property of @object
525 	 *
526 	 * Since: 2.44
527 	 */
528 	public void bindBusyProperty(ObjectG object, string property)
529 	{
530 		g_application_bind_busy_property(gApplication, (object is null) ? null : object.getObjectGStruct(), Str.toStringz(property));
531 	}
532 
533 	/**
534 	 * Gets the unique identifier for @application.
535 	 *
536 	 * Returns: the identifier for @application, owned by @application
537 	 *
538 	 * Since: 2.28
539 	 */
540 	public string getApplicationId()
541 	{
542 		return Str.toString(g_application_get_application_id(gApplication));
543 	}
544 
545 	/**
546 	 * Gets the #GDBusConnection being used by the application, or %NULL.
547 	 *
548 	 * If #GApplication is using its D-Bus backend then this function will
549 	 * return the #GDBusConnection being used for uniqueness and
550 	 * communication with the desktop environment and other instances of the
551 	 * application.
552 	 *
553 	 * If #GApplication is not using D-Bus then this function will return
554 	 * %NULL.  This includes the situation where the D-Bus backend would
555 	 * normally be in use but we were unable to connect to the bus.
556 	 *
557 	 * This function must not be called before the application has been
558 	 * registered.  See g_application_get_is_registered().
559 	 *
560 	 * Returns: a #GDBusConnection, or %NULL
561 	 *
562 	 * Since: 2.34
563 	 */
564 	public DBusConnection getDbusConnection()
565 	{
566 		auto p = g_application_get_dbus_connection(gApplication);
567 		
568 		if(p is null)
569 		{
570 			return null;
571 		}
572 		
573 		return ObjectG.getDObject!(DBusConnection)(cast(GDBusConnection*) p);
574 	}
575 
576 	/**
577 	 * Gets the D-Bus object path being used by the application, or %NULL.
578 	 *
579 	 * If #GApplication is using its D-Bus backend then this function will
580 	 * return the D-Bus object path that #GApplication is using.  If the
581 	 * application is the primary instance then there is an object published
582 	 * at this path.  If the application is not the primary instance then
583 	 * the result of this function is undefined.
584 	 *
585 	 * If #GApplication is not using D-Bus then this function will return
586 	 * %NULL.  This includes the situation where the D-Bus backend would
587 	 * normally be in use but we were unable to connect to the bus.
588 	 *
589 	 * This function must not be called before the application has been
590 	 * registered.  See g_application_get_is_registered().
591 	 *
592 	 * Returns: the object path, or %NULL
593 	 *
594 	 * Since: 2.34
595 	 */
596 	public string getDbusObjectPath()
597 	{
598 		return Str.toString(g_application_get_dbus_object_path(gApplication));
599 	}
600 
601 	/**
602 	 * Gets the flags for @application.
603 	 *
604 	 * See #GApplicationFlags.
605 	 *
606 	 * Returns: the flags for @application
607 	 *
608 	 * Since: 2.28
609 	 */
610 	public GApplicationFlags getFlags()
611 	{
612 		return g_application_get_flags(gApplication);
613 	}
614 
615 	/**
616 	 * Gets the current inactivity timeout for the application.
617 	 *
618 	 * This is the amount of time (in milliseconds) after the last call to
619 	 * g_application_release() before the application stops running.
620 	 *
621 	 * Returns: the timeout, in milliseconds
622 	 *
623 	 * Since: 2.28
624 	 */
625 	public uint getInactivityTimeout()
626 	{
627 		return g_application_get_inactivity_timeout(gApplication);
628 	}
629 
630 	/**
631 	 * Gets the application's current busy state, as set through
632 	 * g_application_mark_busy() or g_application_bind_busy_property().
633 	 *
634 	 * Returns: %TRUE if @application is currenty marked as busy
635 	 *
636 	 * Since: 2.44
637 	 */
638 	public bool getIsBusy()
639 	{
640 		return g_application_get_is_busy(gApplication) != 0;
641 	}
642 
643 	/**
644 	 * Checks if @application is registered.
645 	 *
646 	 * An application is registered if g_application_register() has been
647 	 * successfully called.
648 	 *
649 	 * Returns: %TRUE if @application is registered
650 	 *
651 	 * Since: 2.28
652 	 */
653 	public bool getIsRegistered()
654 	{
655 		return g_application_get_is_registered(gApplication) != 0;
656 	}
657 
658 	/**
659 	 * Checks if @application is remote.
660 	 *
661 	 * If @application is remote then it means that another instance of
662 	 * application already exists (the 'primary' instance).  Calls to
663 	 * perform actions on @application will result in the actions being
664 	 * performed by the primary instance.
665 	 *
666 	 * The value of this property cannot be accessed before
667 	 * g_application_register() has been called.  See
668 	 * g_application_get_is_registered().
669 	 *
670 	 * Returns: %TRUE if @application is remote
671 	 *
672 	 * Since: 2.28
673 	 */
674 	public bool getIsRemote()
675 	{
676 		return g_application_get_is_remote(gApplication) != 0;
677 	}
678 
679 	/**
680 	 * Gets the resource base path of @application.
681 	 *
682 	 * See g_application_set_resource_base_path() for more information.
683 	 *
684 	 * Returns: the base resource path, if one is set
685 	 *
686 	 * Since: 2.42
687 	 */
688 	public string getResourceBasePath()
689 	{
690 		return Str.toString(g_application_get_resource_base_path(gApplication));
691 	}
692 
693 	/**
694 	 * Increases the use count of @application.
695 	 *
696 	 * Use this function to indicate that the application has a reason to
697 	 * continue to run.  For example, g_application_hold() is called by GTK+
698 	 * when a toplevel window is on the screen.
699 	 *
700 	 * To cancel the hold, call g_application_release().
701 	 */
702 	public void hold()
703 	{
704 		g_application_hold(gApplication);
705 	}
706 
707 	/**
708 	 * Increases the busy count of @application.
709 	 *
710 	 * Use this function to indicate that the application is busy, for instance
711 	 * while a long running operation is pending.
712 	 *
713 	 * The busy state will be exposed to other processes, so a session shell will
714 	 * use that information to indicate the state to the user (e.g. with a
715 	 * spinner).
716 	 *
717 	 * To cancel the busy indication, use g_application_unmark_busy().
718 	 *
719 	 * Since: 2.38
720 	 */
721 	public void markBusy()
722 	{
723 		g_application_mark_busy(gApplication);
724 	}
725 
726 	/**
727 	 * Opens the given files.
728 	 *
729 	 * In essence, this results in the #GApplication::open signal being emitted
730 	 * in the primary instance.
731 	 *
732 	 * @n_files must be greater than zero.
733 	 *
734 	 * @hint is simply passed through to the ::open signal.  It is
735 	 * intended to be used by applications that have multiple modes for
736 	 * opening files (eg: "view" vs "edit", etc).  Unless you have a need
737 	 * for this functionality, you should use "".
738 	 *
739 	 * The application must be registered before calling this function
740 	 * and it must have the %G_APPLICATION_HANDLES_OPEN flag set.
741 	 *
742 	 * Params:
743 	 *     files = an array of #GFiles to open
744 	 *     nFiles = the length of the @files array
745 	 *     hint = a hint (or ""), but never %NULL
746 	 *
747 	 * Since: 2.28
748 	 */
749 	public void open(FileIF[] files, string hint)
750 	{
751 		GFile*[] filesArray = new GFile*[files.length];
752 		for ( int i = 0; i < files.length; i++ )
753 		{
754 			filesArray[i] = files[i].getFileStruct();
755 		}
756 		
757 		g_application_open(gApplication, filesArray.ptr, cast(int)files.length, Str.toStringz(hint));
758 	}
759 
760 	/**
761 	 * Immediately quits the application.
762 	 *
763 	 * Upon return to the mainloop, g_application_run() will return,
764 	 * calling only the 'shutdown' function before doing so.
765 	 *
766 	 * The hold count is ignored.
767 	 *
768 	 * The result of calling g_application_run() again after it returns is
769 	 * unspecified.
770 	 *
771 	 * Since: 2.32
772 	 */
773 	public void quit()
774 	{
775 		g_application_quit(gApplication);
776 	}
777 
778 	/**
779 	 * Attempts registration of the application.
780 	 *
781 	 * This is the point at which the application discovers if it is the
782 	 * primary instance or merely acting as a remote for an already-existing
783 	 * primary instance.  This is implemented by attempting to acquire the
784 	 * application identifier as a unique bus name on the session bus using
785 	 * GDBus.
786 	 *
787 	 * If there is no application ID or if %G_APPLICATION_NON_UNIQUE was
788 	 * given, then this process will always become the primary instance.
789 	 *
790 	 * Due to the internal architecture of GDBus, method calls can be
791 	 * dispatched at any time (even if a main loop is not running).  For
792 	 * this reason, you must ensure that any object paths that you wish to
793 	 * register are registered before calling this function.
794 	 *
795 	 * If the application has already been registered then %TRUE is
796 	 * returned with no work performed.
797 	 *
798 	 * The #GApplication::startup signal is emitted if registration succeeds
799 	 * and @application is the primary instance (including the non-unique
800 	 * case).
801 	 *
802 	 * In the event of an error (such as @cancellable being cancelled, or a
803 	 * failure to connect to the session bus), %FALSE is returned and @error
804 	 * is set appropriately.
805 	 *
806 	 * Note: the return value of this function is not an indicator that this
807 	 * instance is or is not the primary instance of the application.  See
808 	 * g_application_get_is_remote() for that.
809 	 *
810 	 * Params:
811 	 *     cancellable = a #GCancellable, or %NULL
812 	 *
813 	 * Returns: %TRUE if registration succeeded
814 	 *
815 	 * Since: 2.28
816 	 *
817 	 * Throws: GException on failure.
818 	 */
819 	public bool register(Cancellable cancellable)
820 	{
821 		GError* err = null;
822 		
823 		auto p = g_application_register(gApplication, (cancellable is null) ? null : cancellable.getCancellableStruct(), &err) != 0;
824 		
825 		if (err !is null)
826 		{
827 			throw new GException( new ErrorG(err) );
828 		}
829 		
830 		return p;
831 	}
832 
833 	/**
834 	 * Decrease the use count of @application.
835 	 *
836 	 * When the use count reaches zero, the application will stop running.
837 	 *
838 	 * Never call this function except to cancel the effect of a previous
839 	 * call to g_application_hold().
840 	 */
841 	public void release()
842 	{
843 		g_application_release(gApplication);
844 	}
845 
846 	/**
847 	 * Runs the application.
848 	 *
849 	 * This function is intended to be run from main() and its return value
850 	 * is intended to be returned by main(). Although you are expected to pass
851 	 * the @argc, @argv parameters from main() to this function, it is possible
852 	 * to pass %NULL if @argv is not available or commandline handling is not
853 	 * required.  Note that on Windows, @argc and @argv are ignored, and
854 	 * g_win32_get_command_line() is called internally (for proper support
855 	 * of Unicode commandline arguments).
856 	 *
857 	 * #GApplication will attempt to parse the commandline arguments.  You
858 	 * can add commandline flags to the list of recognised options by way of
859 	 * g_application_add_main_option_entries().  After this, the
860 	 * #GApplication::handle-local-options signal is emitted, from which the
861 	 * application can inspect the values of its #GOptionEntrys.
862 	 *
863 	 * #GApplication::handle-local-options is a good place to handle options
864 	 * such as `--version`, where an immediate reply from the local process is
865 	 * desired (instead of communicating with an already-running instance).
866 	 * A #GApplication::handle-local-options handler can stop further processing
867 	 * by returning a non-negative value, which then becomes the exit status of
868 	 * the process.
869 	 *
870 	 * What happens next depends on the flags: if
871 	 * %G_APPLICATION_HANDLES_COMMAND_LINE was specified then the remaining
872 	 * commandline arguments are sent to the primary instance, where a
873 	 * #GApplication::command-line signal is emitted.  Otherwise, the
874 	 * remaining commandline arguments are assumed to be a list of files.
875 	 * If there are no files listed, the application is activated via the
876 	 * #GApplication::activate signal.  If there are one or more files, and
877 	 * %G_APPLICATION_HANDLES_OPEN was specified then the files are opened
878 	 * via the #GApplication::open signal.
879 	 *
880 	 * If you are interested in doing more complicated local handling of the
881 	 * commandline then you should implement your own #GApplication subclass
882 	 * and override local_command_line(). In this case, you most likely want
883 	 * to return %TRUE from your local_command_line() implementation to
884 	 * suppress the default handling. See
885 	 * [gapplication-example-cmdline2.c][gapplication-example-cmdline2]
886 	 * for an example.
887 	 *
888 	 * If, after the above is done, the use count of the application is zero
889 	 * then the exit status is returned immediately.  If the use count is
890 	 * non-zero then the default main context is iterated until the use count
891 	 * falls to zero, at which point 0 is returned.
892 	 *
893 	 * If the %G_APPLICATION_IS_SERVICE flag is set, then the service will
894 	 * run for as much as 10 seconds with a use count of zero while waiting
895 	 * for the message that caused the activation to arrive.  After that,
896 	 * if the use count falls to zero the application will exit immediately,
897 	 * except in the case that g_application_set_inactivity_timeout() is in
898 	 * use.
899 	 *
900 	 * This function sets the prgname (g_set_prgname()), if not already set,
901 	 * to the basename of argv[0].
902 	 *
903 	 * Much like g_main_loop_run(), this function will acquire the main context
904 	 * for the duration that the application is running.
905 	 *
906 	 * Since 2.40, applications that are not explicitly flagged as services
907 	 * or launchers (ie: neither %G_APPLICATION_IS_SERVICE or
908 	 * %G_APPLICATION_IS_LAUNCHER are given as flags) will check (from the
909 	 * default handler for local_command_line) if "--gapplication-service"
910 	 * was given in the command line.  If this flag is present then normal
911 	 * commandline processing is interrupted and the
912 	 * %G_APPLICATION_IS_SERVICE flag is set.  This provides a "compromise"
913 	 * solution whereby running an application directly from the commandline
914 	 * will invoke it in the normal way (which can be useful for debugging)
915 	 * while still allowing applications to be D-Bus activated in service
916 	 * mode.  The D-Bus service file should invoke the executable with
917 	 * "--gapplication-service" as the sole commandline argument.  This
918 	 * approach is suitable for use by most graphical applications but
919 	 * should not be used from applications like editors that need precise
920 	 * control over when processes invoked via the commandline will exit and
921 	 * what their exit status will be.
922 	 *
923 	 * Params:
924 	 *     argc = the argc from main() (or 0 if @argv is %NULL)
925 	 *     argv = the argv from main(), or %NULL
926 	 *
927 	 * Returns: the exit status
928 	 *
929 	 * Since: 2.28
930 	 */
931 	public int run(string[] argv)
932 	{
933 		return g_application_run(gApplication, cast(int)argv.length, Str.toStringzArray(argv));
934 	}
935 
936 	/**
937 	 * Sends a notification on behalf of @application to the desktop shell.
938 	 * There is no guarantee that the notification is displayed immediately,
939 	 * or even at all.
940 	 *
941 	 * Notifications may persist after the application exits. It will be
942 	 * D-Bus-activated when the notification or one of its actions is
943 	 * activated.
944 	 *
945 	 * Modifying @notification after this call has no effect. However, the
946 	 * object can be reused for a later call to this function.
947 	 *
948 	 * @id may be any string that uniquely identifies the event for the
949 	 * application. It does not need to be in any special format. For
950 	 * example, "new-message" might be appropriate for a notification about
951 	 * new messages.
952 	 *
953 	 * If a previous notification was sent with the same @id, it will be
954 	 * replaced with @notification and shown again as if it was a new
955 	 * notification. This works even for notifications sent from a previous
956 	 * execution of the application, as long as @id is the same string.
957 	 *
958 	 * @id may be %NULL, but it is impossible to replace or withdraw
959 	 * notifications without an id.
960 	 *
961 	 * If @notification is no longer relevant, it can be withdrawn with
962 	 * g_application_withdraw_notification().
963 	 *
964 	 * Params:
965 	 *     id = id of the notification, or %NULL
966 	 *     notification = the #GNotification to send
967 	 *
968 	 * Since: 2.40
969 	 */
970 	public void sendNotification(string id, Notification notification)
971 	{
972 		g_application_send_notification(gApplication, Str.toStringz(id), (notification is null) ? null : notification.getNotificationStruct());
973 	}
974 
975 	/**
976 	 * This used to be how actions were associated with a #GApplication.
977 	 * Now there is #GActionMap for that.
978 	 *
979 	 * Deprecated: Use the #GActionMap interface instead.  Never ever
980 	 * mix use of this API with use of #GActionMap on the same @application
981 	 * or things will go very badly wrong.  This function is known to
982 	 * introduce buggy behaviour (ie: signals not emitted on changes to the
983 	 * action group), so you should really use #GActionMap instead.
984 	 *
985 	 * Params:
986 	 *     actionGroup = a #GActionGroup, or %NULL
987 	 *
988 	 * Since: 2.28
989 	 */
990 	public void setActionGroup(ActionGroupIF actionGroup)
991 	{
992 		g_application_set_action_group(gApplication, (actionGroup is null) ? null : actionGroup.getActionGroupStruct());
993 	}
994 
995 	/**
996 	 * Sets the unique identifier for @application.
997 	 *
998 	 * The application id can only be modified if @application has not yet
999 	 * been registered.
1000 	 *
1001 	 * If non-%NULL, the application id must be valid.  See
1002 	 * g_application_id_is_valid().
1003 	 *
1004 	 * Params:
1005 	 *     applicationId = the identifier for @application
1006 	 *
1007 	 * Since: 2.28
1008 	 */
1009 	public void setApplicationId(string applicationId)
1010 	{
1011 		g_application_set_application_id(gApplication, Str.toStringz(applicationId));
1012 	}
1013 
1014 	/**
1015 	 * Sets or unsets the default application for the process, as returned
1016 	 * by g_application_get_default().
1017 	 *
1018 	 * This function does not take its own reference on @application.  If
1019 	 * @application is destroyed then the default application will revert
1020 	 * back to %NULL.
1021 	 *
1022 	 * Since: 2.32
1023 	 */
1024 	public void setDefault()
1025 	{
1026 		g_application_set_default(gApplication);
1027 	}
1028 
1029 	/**
1030 	 * Sets the flags for @application.
1031 	 *
1032 	 * The flags can only be modified if @application has not yet been
1033 	 * registered.
1034 	 *
1035 	 * See #GApplicationFlags.
1036 	 *
1037 	 * Params:
1038 	 *     flags = the flags for @application
1039 	 *
1040 	 * Since: 2.28
1041 	 */
1042 	public void setFlags(GApplicationFlags flags)
1043 	{
1044 		g_application_set_flags(gApplication, flags);
1045 	}
1046 
1047 	/**
1048 	 * Sets the current inactivity timeout for the application.
1049 	 *
1050 	 * This is the amount of time (in milliseconds) after the last call to
1051 	 * g_application_release() before the application stops running.
1052 	 *
1053 	 * This call has no side effects of its own.  The value set here is only
1054 	 * used for next time g_application_release() drops the use count to
1055 	 * zero.  Any timeouts currently in progress are not impacted.
1056 	 *
1057 	 * Params:
1058 	 *     inactivityTimeout = the timeout, in milliseconds
1059 	 *
1060 	 * Since: 2.28
1061 	 */
1062 	public void setInactivityTimeout(uint inactivityTimeout)
1063 	{
1064 		g_application_set_inactivity_timeout(gApplication, inactivityTimeout);
1065 	}
1066 
1067 	/**
1068 	 * Sets (or unsets) the base resource path of @application.
1069 	 *
1070 	 * The path is used to automatically load various [application
1071 	 * resources][gresource] such as menu layouts and action descriptions.
1072 	 * The various types of resources will be found at fixed names relative
1073 	 * to the given base path.
1074 	 *
1075 	 * By default, the resource base path is determined from the application
1076 	 * ID by prefixing '/' and replacing each '.' with '/'.  This is done at
1077 	 * the time that the #GApplication object is constructed.  Changes to
1078 	 * the application ID after that point will not have an impact on the
1079 	 * resource base path.
1080 	 *
1081 	 * As an example, if the application has an ID of "org.example.app" then
1082 	 * the default resource base path will be "/org/example/app".  If this
1083 	 * is a #GtkApplication (and you have not manually changed the path)
1084 	 * then Gtk will then search for the menus of the application at
1085 	 * "/org/example/app/gtk/menus.ui".
1086 	 *
1087 	 * See #GResource for more information about adding resources to your
1088 	 * application.
1089 	 *
1090 	 * You can disable automatic resource loading functionality by setting
1091 	 * the path to %NULL.
1092 	 *
1093 	 * Changing the resource base path once the application is running is
1094 	 * not recommended.  The point at which the resource path is consulted
1095 	 * for forming paths for various purposes is unspecified.  When writing
1096 	 * a sub-class of #GApplication you should either set the
1097 	 * #GApplication:resource-base-path property at construction time, or call
1098 	 * this function during the instance initialization. Alternatively, you
1099 	 * can call this function in the #GApplicationClass.startup virtual function,
1100 	 * before chaining up to the parent implementation.
1101 	 *
1102 	 * Params:
1103 	 *     resourcePath = the resource path to use
1104 	 *
1105 	 * Since: 2.42
1106 	 */
1107 	public void setResourceBasePath(string resourcePath)
1108 	{
1109 		g_application_set_resource_base_path(gApplication, Str.toStringz(resourcePath));
1110 	}
1111 
1112 	/**
1113 	 * Destroys a binding between @property and the busy state of
1114 	 * @application that was previously created with
1115 	 * g_application_bind_busy_property().
1116 	 *
1117 	 * Params:
1118 	 *     object = a #GObject
1119 	 *     property = the name of a boolean property of @object
1120 	 *
1121 	 * Since: 2.44
1122 	 */
1123 	public void unbindBusyProperty(ObjectG object, string property)
1124 	{
1125 		g_application_unbind_busy_property(gApplication, (object is null) ? null : object.getObjectGStruct(), Str.toStringz(property));
1126 	}
1127 
1128 	/**
1129 	 * Decreases the busy count of @application.
1130 	 *
1131 	 * When the busy count reaches zero, the new state will be propagated
1132 	 * to other processes.
1133 	 *
1134 	 * This function must only be called to cancel the effect of a previous
1135 	 * call to g_application_mark_busy().
1136 	 *
1137 	 * Since: 2.38
1138 	 */
1139 	public void unmarkBusy()
1140 	{
1141 		g_application_unmark_busy(gApplication);
1142 	}
1143 
1144 	/**
1145 	 * Withdraws a notification that was sent with
1146 	 * g_application_send_notification().
1147 	 *
1148 	 * This call does nothing if a notification with @id doesn't exist or
1149 	 * the notification was never sent.
1150 	 *
1151 	 * This function works even for notifications sent in previous
1152 	 * executions of this application, as long @id is the same as it was for
1153 	 * the sent notification.
1154 	 *
1155 	 * Note that notifications are dismissed when the user clicks on one
1156 	 * of the buttons in a notification or triggers its default action, so
1157 	 * there is no need to explicitly withdraw the notification in that case.
1158 	 *
1159 	 * Params:
1160 	 *     id = id of a previously sent notification
1161 	 *
1162 	 * Since: 2.40
1163 	 */
1164 	public void withdrawNotification(string id)
1165 	{
1166 		g_application_withdraw_notification(gApplication, Str.toStringz(id));
1167 	}
1168 
1169 	protected class OnActivateDelegateWrapper
1170 	{
1171 		void delegate(Application) dlg;
1172 		gulong handlerId;
1173 		
1174 		this(void delegate(Application) dlg)
1175 		{
1176 			this.dlg = dlg;
1177 			onActivateListeners ~= this;
1178 		}
1179 		
1180 		void remove(OnActivateDelegateWrapper source)
1181 		{
1182 			foreach(index, wrapper; onActivateListeners)
1183 			{
1184 				if (wrapper.handlerId == source.handlerId)
1185 				{
1186 					onActivateListeners[index] = null;
1187 					onActivateListeners = std.algorithm.remove(onActivateListeners, index);
1188 					break;
1189 				}
1190 			}
1191 		}
1192 	}
1193 	OnActivateDelegateWrapper[] onActivateListeners;
1194 
1195 	/**
1196 	 * The ::activate signal is emitted on the primary instance when an
1197 	 * activation occurs. See g_application_activate().
1198 	 */
1199 	gulong addOnActivate(void delegate(Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1200 	{
1201 		auto wrapper = new OnActivateDelegateWrapper(dlg);
1202 		wrapper.handlerId = Signals.connectData(
1203 			this,
1204 			"activate",
1205 			cast(GCallback)&callBackActivate,
1206 			cast(void*)wrapper,
1207 			cast(GClosureNotify)&callBackActivateDestroy,
1208 			connectFlags);
1209 		return wrapper.handlerId;
1210 	}
1211 	
1212 	extern(C) static void callBackActivate(GApplication* applicationStruct, OnActivateDelegateWrapper wrapper)
1213 	{
1214 		wrapper.dlg(wrapper.outer);
1215 	}
1216 	
1217 	extern(C) static void callBackActivateDestroy(OnActivateDelegateWrapper wrapper, GClosure* closure)
1218 	{
1219 		wrapper.remove(wrapper);
1220 	}
1221 
1222 	protected class OnCommandLineDelegateWrapper
1223 	{
1224 		int delegate(ApplicationCommandLine, Application) dlg;
1225 		gulong handlerId;
1226 		
1227 		this(int delegate(ApplicationCommandLine, Application) dlg)
1228 		{
1229 			this.dlg = dlg;
1230 			onCommandLineListeners ~= this;
1231 		}
1232 		
1233 		void remove(OnCommandLineDelegateWrapper source)
1234 		{
1235 			foreach(index, wrapper; onCommandLineListeners)
1236 			{
1237 				if (wrapper.handlerId == source.handlerId)
1238 				{
1239 					onCommandLineListeners[index] = null;
1240 					onCommandLineListeners = std.algorithm.remove(onCommandLineListeners, index);
1241 					break;
1242 				}
1243 			}
1244 		}
1245 	}
1246 	OnCommandLineDelegateWrapper[] onCommandLineListeners;
1247 
1248 	/**
1249 	 * The ::command-line signal is emitted on the primary instance when
1250 	 * a commandline is not handled locally. See g_application_run() and
1251 	 * the #GApplicationCommandLine documentation for more information.
1252 	 *
1253 	 * Params:
1254 	 *     commandLine = a #GApplicationCommandLine representing the
1255 	 *         passed commandline
1256 	 *
1257 	 * Returns: An integer that is set as the exit status for the calling
1258 	 *     process. See g_application_command_line_set_exit_status().
1259 	 */
1260 	gulong addOnCommandLine(int delegate(ApplicationCommandLine, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1261 	{
1262 		auto wrapper = new OnCommandLineDelegateWrapper(dlg);
1263 		wrapper.handlerId = Signals.connectData(
1264 			this,
1265 			"command-line",
1266 			cast(GCallback)&callBackCommandLine,
1267 			cast(void*)wrapper,
1268 			cast(GClosureNotify)&callBackCommandLineDestroy,
1269 			connectFlags);
1270 		return wrapper.handlerId;
1271 	}
1272 	
1273 	extern(C) static int callBackCommandLine(GApplication* applicationStruct, GApplicationCommandLine* commandLine, OnCommandLineDelegateWrapper wrapper)
1274 	{
1275 		return wrapper.dlg(ObjectG.getDObject!(ApplicationCommandLine)(commandLine), wrapper.outer);
1276 	}
1277 	
1278 	extern(C) static void callBackCommandLineDestroy(OnCommandLineDelegateWrapper wrapper, GClosure* closure)
1279 	{
1280 		wrapper.remove(wrapper);
1281 	}
1282 
1283 	protected class OnHandleLocalOptionsDelegateWrapper
1284 	{
1285 		int delegate(VariantDict, Application) dlg;
1286 		gulong handlerId;
1287 		
1288 		this(int delegate(VariantDict, Application) dlg)
1289 		{
1290 			this.dlg = dlg;
1291 			onHandleLocalOptionsListeners ~= this;
1292 		}
1293 		
1294 		void remove(OnHandleLocalOptionsDelegateWrapper source)
1295 		{
1296 			foreach(index, wrapper; onHandleLocalOptionsListeners)
1297 			{
1298 				if (wrapper.handlerId == source.handlerId)
1299 				{
1300 					onHandleLocalOptionsListeners[index] = null;
1301 					onHandleLocalOptionsListeners = std.algorithm.remove(onHandleLocalOptionsListeners, index);
1302 					break;
1303 				}
1304 			}
1305 		}
1306 	}
1307 	OnHandleLocalOptionsDelegateWrapper[] onHandleLocalOptionsListeners;
1308 
1309 	/**
1310 	 * The ::handle-local-options signal is emitted on the local instance
1311 	 * after the parsing of the commandline options has occurred.
1312 	 *
1313 	 * You can add options to be recognised during commandline option
1314 	 * parsing using g_application_add_main_option_entries() and
1315 	 * g_application_add_option_group().
1316 	 *
1317 	 * Signal handlers can inspect @options (along with values pointed to
1318 	 * from the @arg_data of an installed #GOptionEntrys) in order to
1319 	 * decide to perform certain actions, including direct local handling
1320 	 * (which may be useful for options like --version).
1321 	 *
1322 	 * In the event that the application is marked
1323 	 * %G_APPLICATION_HANDLES_COMMAND_LINE the "normal processing" will
1324 	 * send the @options dictionary to the primary instance where it can be
1325 	 * read with g_application_command_line_get_options_dict().  The signal
1326 	 * handler can modify the dictionary before returning, and the
1327 	 * modified dictionary will be sent.
1328 	 *
1329 	 * In the event that %G_APPLICATION_HANDLES_COMMAND_LINE is not set,
1330 	 * "normal processing" will treat the remaining uncollected command
1331 	 * line arguments as filenames or URIs.  If there are no arguments,
1332 	 * the application is activated by g_application_activate().  One or
1333 	 * more arguments results in a call to g_application_open().
1334 	 *
1335 	 * If you want to handle the local commandline arguments for yourself
1336 	 * by converting them to calls to g_application_open() or
1337 	 * g_action_group_activate_action() then you must be sure to register
1338 	 * the application first.  You should probably not call
1339 	 * g_application_activate() for yourself, however: just return -1 and
1340 	 * allow the default handler to do it for you.  This will ensure that
1341 	 * the `--gapplication-service` switch works properly (i.e. no activation
1342 	 * in that case).
1343 	 *
1344 	 * Note that this signal is emitted from the default implementation of
1345 	 * local_command_line().  If you override that function and don't
1346 	 * chain up then this signal will never be emitted.
1347 	 *
1348 	 * You can override local_command_line() if you need more powerful
1349 	 * capabilities than what is provided here, but this should not
1350 	 * normally be required.
1351 	 *
1352 	 * Params:
1353 	 *     options = the options dictionary
1354 	 *
1355 	 * Returns: an exit code. If you have handled your options and want
1356 	 *     to exit the process, return a non-negative option, 0 for success,
1357 	 *     and a positive value for failure. To continue, return -1 to let
1358 	 *     the default option processing continue.
1359 	 *
1360 	 * Since: 2.40
1361 	 */
1362 	gulong addOnHandleLocalOptions(int delegate(VariantDict, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1363 	{
1364 		auto wrapper = new OnHandleLocalOptionsDelegateWrapper(dlg);
1365 		wrapper.handlerId = Signals.connectData(
1366 			this,
1367 			"handle-local-options",
1368 			cast(GCallback)&callBackHandleLocalOptions,
1369 			cast(void*)wrapper,
1370 			cast(GClosureNotify)&callBackHandleLocalOptionsDestroy,
1371 			connectFlags);
1372 		return wrapper.handlerId;
1373 	}
1374 	
1375 	extern(C) static int callBackHandleLocalOptions(GApplication* applicationStruct, GVariantDict* options, OnHandleLocalOptionsDelegateWrapper wrapper)
1376 	{
1377 		return wrapper.dlg(new VariantDict(options), wrapper.outer);
1378 	}
1379 	
1380 	extern(C) static void callBackHandleLocalOptionsDestroy(OnHandleLocalOptionsDelegateWrapper wrapper, GClosure* closure)
1381 	{
1382 		wrapper.remove(wrapper);
1383 	}
1384 
1385 	protected class OnOpenDelegateWrapper
1386 	{
1387 		void delegate(void*, int, string, Application) dlg;
1388 		gulong handlerId;
1389 		
1390 		this(void delegate(void*, int, string, Application) dlg)
1391 		{
1392 			this.dlg = dlg;
1393 			onOpenListeners ~= this;
1394 		}
1395 		
1396 		void remove(OnOpenDelegateWrapper source)
1397 		{
1398 			foreach(index, wrapper; onOpenListeners)
1399 			{
1400 				if (wrapper.handlerId == source.handlerId)
1401 				{
1402 					onOpenListeners[index] = null;
1403 					onOpenListeners = std.algorithm.remove(onOpenListeners, index);
1404 					break;
1405 				}
1406 			}
1407 		}
1408 	}
1409 	OnOpenDelegateWrapper[] onOpenListeners;
1410 
1411 	/**
1412 	 * The ::open signal is emitted on the primary instance when there are
1413 	 * files to open. See g_application_open() for more information.
1414 	 *
1415 	 * Params:
1416 	 *     files = an array of #GFiles
1417 	 *     nFiles = the length of @files
1418 	 *     hint = a hint provided by the calling instance
1419 	 */
1420 	gulong addOnOpen(void delegate(void*, int, string, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1421 	{
1422 		auto wrapper = new OnOpenDelegateWrapper(dlg);
1423 		wrapper.handlerId = Signals.connectData(
1424 			this,
1425 			"open",
1426 			cast(GCallback)&callBackOpen,
1427 			cast(void*)wrapper,
1428 			cast(GClosureNotify)&callBackOpenDestroy,
1429 			connectFlags);
1430 		return wrapper.handlerId;
1431 	}
1432 	
1433 	extern(C) static void callBackOpen(GApplication* applicationStruct, void* files, int nFiles, char* hint, OnOpenDelegateWrapper wrapper)
1434 	{
1435 		wrapper.dlg(files, nFiles, Str.toString(hint), wrapper.outer);
1436 	}
1437 	
1438 	extern(C) static void callBackOpenDestroy(OnOpenDelegateWrapper wrapper, GClosure* closure)
1439 	{
1440 		wrapper.remove(wrapper);
1441 	}
1442 
1443 	protected class OnShutdownDelegateWrapper
1444 	{
1445 		void delegate(Application) dlg;
1446 		gulong handlerId;
1447 		
1448 		this(void delegate(Application) dlg)
1449 		{
1450 			this.dlg = dlg;
1451 			onShutdownListeners ~= this;
1452 		}
1453 		
1454 		void remove(OnShutdownDelegateWrapper source)
1455 		{
1456 			foreach(index, wrapper; onShutdownListeners)
1457 			{
1458 				if (wrapper.handlerId == source.handlerId)
1459 				{
1460 					onShutdownListeners[index] = null;
1461 					onShutdownListeners = std.algorithm.remove(onShutdownListeners, index);
1462 					break;
1463 				}
1464 			}
1465 		}
1466 	}
1467 	OnShutdownDelegateWrapper[] onShutdownListeners;
1468 
1469 	/**
1470 	 * The ::shutdown signal is emitted only on the registered primary instance
1471 	 * immediately after the main loop terminates.
1472 	 */
1473 	gulong addOnShutdown(void delegate(Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1474 	{
1475 		auto wrapper = new OnShutdownDelegateWrapper(dlg);
1476 		wrapper.handlerId = Signals.connectData(
1477 			this,
1478 			"shutdown",
1479 			cast(GCallback)&callBackShutdown,
1480 			cast(void*)wrapper,
1481 			cast(GClosureNotify)&callBackShutdownDestroy,
1482 			connectFlags);
1483 		return wrapper.handlerId;
1484 	}
1485 	
1486 	extern(C) static void callBackShutdown(GApplication* applicationStruct, OnShutdownDelegateWrapper wrapper)
1487 	{
1488 		wrapper.dlg(wrapper.outer);
1489 	}
1490 	
1491 	extern(C) static void callBackShutdownDestroy(OnShutdownDelegateWrapper wrapper, GClosure* closure)
1492 	{
1493 		wrapper.remove(wrapper);
1494 	}
1495 
1496 	protected class OnStartupDelegateWrapper
1497 	{
1498 		void delegate(Application) dlg;
1499 		gulong handlerId;
1500 		
1501 		this(void delegate(Application) dlg)
1502 		{
1503 			this.dlg = dlg;
1504 			onStartupListeners ~= this;
1505 		}
1506 		
1507 		void remove(OnStartupDelegateWrapper source)
1508 		{
1509 			foreach(index, wrapper; onStartupListeners)
1510 			{
1511 				if (wrapper.handlerId == source.handlerId)
1512 				{
1513 					onStartupListeners[index] = null;
1514 					onStartupListeners = std.algorithm.remove(onStartupListeners, index);
1515 					break;
1516 				}
1517 			}
1518 		}
1519 	}
1520 	OnStartupDelegateWrapper[] onStartupListeners;
1521 
1522 	/**
1523 	 * The ::startup signal is emitted on the primary instance immediately
1524 	 * after registration. See g_application_register().
1525 	 */
1526 	gulong addOnStartup(void delegate(Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1527 	{
1528 		auto wrapper = new OnStartupDelegateWrapper(dlg);
1529 		wrapper.handlerId = Signals.connectData(
1530 			this,
1531 			"startup",
1532 			cast(GCallback)&callBackStartup,
1533 			cast(void*)wrapper,
1534 			cast(GClosureNotify)&callBackStartupDestroy,
1535 			connectFlags);
1536 		return wrapper.handlerId;
1537 	}
1538 	
1539 	extern(C) static void callBackStartup(GApplication* applicationStruct, OnStartupDelegateWrapper wrapper)
1540 	{
1541 		wrapper.dlg(wrapper.outer);
1542 	}
1543 	
1544 	extern(C) static void callBackStartupDestroy(OnStartupDelegateWrapper wrapper, GClosure* closure)
1545 	{
1546 		wrapper.remove(wrapper);
1547 	}
1548 }