1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute, ptr};

glib::wrapper! {
    /// [`Action`][crate::Action] represents a single named action.
    ///
    /// The main interface to an action is that it can be activated with
    /// [`ActionExt::activate()`][crate::prelude::ActionExt::activate()]. This results in the 'activate' signal being
    /// emitted. An activation has a [`glib::Variant`][struct@crate::glib::Variant] parameter (which may be
    /// [`None`]). The correct type for the parameter is determined by a static
    /// parameter type (which is given at construction time).
    ///
    /// An action may optionally have a state, in which case the state may be
    /// set with [`ActionExt::change_state()`][crate::prelude::ActionExt::change_state()]. This call takes a [`glib::Variant`][struct@crate::glib::Variant]. The
    /// correct type for the state is determined by a static state type
    /// (which is given at construction time).
    ///
    /// The state may have a hint associated with it, specifying its valid
    /// range.
    ///
    /// [`Action`][crate::Action] is merely the interface to the concept of an action, as
    /// described above. Various implementations of actions exist, including
    /// [`SimpleAction`][crate::SimpleAction].
    ///
    /// In all cases, the implementing class is responsible for storing the
    /// name of the action, the parameter type, the enabled state, the
    /// optional state type and the state and emitting the appropriate
    /// signals when these change. The implementor is responsible for filtering
    /// calls to [`ActionExt::activate()`][crate::prelude::ActionExt::activate()] and [`ActionExt::change_state()`][crate::prelude::ActionExt::change_state()] for type
    /// safety and for the state being enabled.
    ///
    /// Probably the only useful thing to do with a [`Action`][crate::Action] is to put it
    /// inside of a [`SimpleActionGroup`][crate::SimpleActionGroup].
    ///
    /// ## Properties
    ///
    ///
    /// #### `enabled`
    ///  If `action` is currently enabled.
    ///
    /// If the action is disabled then calls to [`ActionExt::activate()`][crate::prelude::ActionExt::activate()] and
    /// [`ActionExt::change_state()`][crate::prelude::ActionExt::change_state()] have no effect.
    ///
    /// Readable
    ///
    ///
    /// #### `name`
    ///  The name of the action. This is mostly meaningful for identifying
    /// the action once it has been added to a [`ActionGroup`][crate::ActionGroup]. It is immutable.
    ///
    /// Readable
    ///
    ///
    /// #### `parameter-type`
    ///  The type of the parameter that must be given when activating the
    /// action. This is immutable, and may be [`None`] if no parameter is needed when
    /// activating the action.
    ///
    /// Readable
    ///
    ///
    /// #### `state`
    ///  The state of the action, or [`None`] if the action is stateless.
    ///
    /// Readable
    ///
    ///
    /// #### `state-type`
    ///  The [`glib::VariantType`][crate::glib::VariantType] of the state that the action has, or [`None`] if the
    /// action is stateless. This is immutable.
    ///
    /// Readable
    ///
    /// # Implements
    ///
    /// [`ActionExt`][trait@crate::prelude::ActionExt]
    #[doc(alias = "GAction")]
    pub struct Action(Interface<ffi::GAction, ffi::GActionInterface>);

    match fn {
        type_ => || ffi::g_action_get_type(),
    }
}

impl Action {
    pub const NONE: Option<&'static Action> = None;

    /// Checks if `action_name` is valid.
    ///
    /// `action_name` is valid if it consists only of alphanumeric characters,
    /// plus '-' and '.'. The empty string is not a valid action name.
    ///
    /// It is an error to call this function with a non-utf8 `action_name`.
    /// `action_name` must not be [`None`].
    /// ## `action_name`
    /// a potential action name
    ///
    /// # Returns
    ///
    /// [`true`] if `action_name` is valid
    #[doc(alias = "g_action_name_is_valid")]
    pub fn name_is_valid(action_name: &str) -> bool {
        unsafe { from_glib(ffi::g_action_name_is_valid(action_name.to_glib_none().0)) }
    }

    /// Parses a detailed action name into its separate name and target
    /// components.
    ///
    /// Detailed action names can have three formats.
    ///
    /// The first format is used to represent an action name with no target
    /// value and consists of just an action name containing no whitespace
    /// nor the characters `:`, `(` or `)`. For example: `app.action`.
    ///
    /// The second format is used to represent an action with a target value
    /// that is a non-empty string consisting only of alphanumerics, plus `-`
    /// and `.`. In that case, the action name and target value are
    /// separated by a double colon (`::`). For example:
    /// `app.action::target`.
    ///
    /// The third format is used to represent an action with any type of
    /// target value, including strings. The target value follows the action
    /// name, surrounded in parens. For example: `app.action(42)`. The
    /// target value is parsed using `g_variant_parse()`. If a tuple-typed
    /// value is desired, it must be specified in the same way, resulting in
    /// two sets of parens, for example: `app.action((1,2,3))`. A string
    /// target can be specified this way as well: `app.action('target')`.
    /// For strings, this third format must be used if target value is
    /// empty or contains characters other than alphanumerics, `-` and `.`.
    ///
    /// If this function returns [`true`], a non-[`None`] value is guaranteed to be returned
    /// in `action_name` (if a pointer is passed in). A [`None`] value may still be
    /// returned in `target_value`, as the `detailed_name` may not contain a target.
    ///
    /// If returned, the [`glib::Variant`][struct@crate::glib::Variant] in `target_value` is guaranteed to not be floating.
    /// ## `detailed_name`
    /// a detailed action name
    ///
    /// # Returns
    ///
    /// [`true`] if successful, else [`false`] with `error` set
    ///
    /// ## `action_name`
    /// the action name
    ///
    /// ## `target_value`
    /// the target value,
    ///  or [`None`] for no target
    #[doc(alias = "g_action_parse_detailed_name")]
    pub fn parse_detailed_name(
        detailed_name: &str,
    ) -> Result<(glib::GString, Option<glib::Variant>), glib::Error> {
        unsafe {
            let mut action_name = ptr::null_mut();
            let mut target_value = ptr::null_mut();
            let mut error = ptr::null_mut();
            let is_ok = ffi::g_action_parse_detailed_name(
                detailed_name.to_glib_none().0,
                &mut action_name,
                &mut target_value,
                &mut error,
            );
            debug_assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
            if error.is_null() {
                Ok((from_glib_full(action_name), from_glib_full(target_value)))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    /// Formats a detailed action name from `action_name` and `target_value`.
    ///
    /// It is an error to call this function with an invalid action name.
    ///
    /// This function is the opposite of [`parse_detailed_name()`][Self::parse_detailed_name()].
    /// It will produce a string that can be parsed back to the `action_name`
    /// and `target_value` by that function.
    ///
    /// See that function for the types of strings that will be printed by
    /// this function.
    /// ## `action_name`
    /// a valid action name
    /// ## `target_value`
    /// a [`glib::Variant`][struct@crate::glib::Variant] target value, or [`None`]
    ///
    /// # Returns
    ///
    /// a detailed format string
    #[doc(alias = "g_action_print_detailed_name")]
    pub fn print_detailed_name(
        action_name: &str,
        target_value: Option<&glib::Variant>,
    ) -> glib::GString {
        unsafe {
            from_glib_full(ffi::g_action_print_detailed_name(
                action_name.to_glib_none().0,
                target_value.to_glib_none().0,
            ))
        }
    }
}

/// Trait containing all [`struct@Action`] methods.
///
/// # Implementors
///
/// [`Action`][struct@crate::Action], [`PropertyAction`][struct@crate::PropertyAction], [`SimpleAction`][struct@crate::SimpleAction]
pub trait ActionExt: 'static {
    /// Activates the action.
    ///
    /// `parameter` must be the correct type of parameter for the action (ie:
    /// the parameter type given at construction time). If the parameter
    /// type was [`None`] then `parameter` must also be [`None`].
    ///
    /// If the `parameter` GVariant is floating, it is consumed.
    /// ## `parameter`
    /// the parameter to the activation
    #[doc(alias = "g_action_activate")]
    fn activate(&self, parameter: Option<&glib::Variant>);

    /// Request for the state of `self` to be changed to `value`.
    ///
    /// The action must be stateful and `value` must be of the correct type.
    /// See [`state_type()`][Self::state_type()].
    ///
    /// This call merely requests a change. The action may refuse to change
    /// its state or may change its state to something other than `value`.
    /// See [`state_hint()`][Self::state_hint()].
    ///
    /// If the `value` GVariant is floating, it is consumed.
    /// ## `value`
    /// the new state
    #[doc(alias = "g_action_change_state")]
    fn change_state(&self, value: &glib::Variant);

    /// Checks if `self` is currently enabled.
    ///
    /// An action must be enabled in order to be activated or in order to
    /// have its state changed from outside callers.
    ///
    /// # Returns
    ///
    /// whether the action is enabled
    #[doc(alias = "g_action_get_enabled")]
    #[doc(alias = "get_enabled")]
    fn is_enabled(&self) -> bool;

    /// Queries the name of `self`.
    ///
    /// # Returns
    ///
    /// the name of the action
    #[doc(alias = "g_action_get_name")]
    #[doc(alias = "get_name")]
    fn name(&self) -> glib::GString;

    /// Queries the type of the parameter that must be given when activating
    /// `self`.
    ///
    /// When activating the action using [`activate()`][Self::activate()], the [`glib::Variant`][struct@crate::glib::Variant]
    /// given to that function must be of the type returned by this function.
    ///
    /// In the case that this function returns [`None`], you must not give any
    /// [`glib::Variant`][struct@crate::glib::Variant], but [`None`] instead.
    ///
    /// # Returns
    ///
    /// the parameter type
    #[doc(alias = "g_action_get_parameter_type")]
    #[doc(alias = "get_parameter_type")]
    fn parameter_type(&self) -> Option<glib::VariantType>;

    /// Queries the current state of `self`.
    ///
    /// If the action is not stateful then [`None`] will be returned. If the
    /// action is stateful then the type of the return value is the type
    /// given by [`state_type()`][Self::state_type()].
    ///
    /// The return value (if non-[`None`]) should be freed with
    /// `g_variant_unref()` when it is no longer required.
    ///
    /// # Returns
    ///
    /// the current state of the action
    #[doc(alias = "g_action_get_state")]
    #[doc(alias = "get_state")]
    fn state(&self) -> Option<glib::Variant>;

    /// Requests a hint about the valid range of values for the state of
    /// `self`.
    ///
    /// If [`None`] is returned it either means that the action is not stateful
    /// or that there is no hint about the valid range of values for the
    /// state of the action.
    ///
    /// If a [`glib::Variant`][struct@crate::glib::Variant] array is returned then each item in the array is a
    /// possible value for the state. If a [`glib::Variant`][struct@crate::glib::Variant] pair (ie: two-tuple) is
    /// returned then the tuple specifies the inclusive lower and upper bound
    /// of valid values for the state.
    ///
    /// In any case, the information is merely a hint. It may be possible to
    /// have a state value outside of the hinted range and setting a value
    /// within the range may fail.
    ///
    /// The return value (if non-[`None`]) should be freed with
    /// `g_variant_unref()` when it is no longer required.
    ///
    /// # Returns
    ///
    /// the state range hint
    #[doc(alias = "g_action_get_state_hint")]
    #[doc(alias = "get_state_hint")]
    fn state_hint(&self) -> Option<glib::Variant>;

    /// Queries the type of the state of `self`.
    ///
    /// If the action is stateful (e.g. created with
    /// [`SimpleAction::new_stateful()`][crate::SimpleAction::new_stateful()]) then this function returns the
    /// [`glib::VariantType`][crate::glib::VariantType] of the state. This is the type of the initial value
    /// given as the state. All calls to [`change_state()`][Self::change_state()] must give a
    /// [`glib::Variant`][struct@crate::glib::Variant] of this type and [`state()`][Self::state()] will return a
    /// [`glib::Variant`][struct@crate::glib::Variant] of the same type.
    ///
    /// If the action is not stateful (e.g. created with [`SimpleAction::new()`][crate::SimpleAction::new()])
    /// then this function will return [`None`]. In that case, [`state()`][Self::state()]
    /// will return [`None`] and you must not call [`change_state()`][Self::change_state()].
    ///
    /// # Returns
    ///
    /// the state type, if the action is stateful
    #[doc(alias = "g_action_get_state_type")]
    #[doc(alias = "get_state_type")]
    fn state_type(&self) -> Option<glib::VariantType>;

    #[doc(alias = "enabled")]
    fn connect_enabled_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "name")]
    fn connect_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "parameter-type")]
    fn connect_parameter_type_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "state")]
    fn connect_state_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "state-type")]
    fn connect_state_type_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Action>> ActionExt for O {
    fn activate(&self, parameter: Option<&glib::Variant>) {
        unsafe {
            ffi::g_action_activate(self.as_ref().to_glib_none().0, parameter.to_glib_none().0);
        }
    }

    fn change_state(&self, value: &glib::Variant) {
        unsafe {
            ffi::g_action_change_state(self.as_ref().to_glib_none().0, value.to_glib_none().0);
        }
    }

    fn is_enabled(&self) -> bool {
        unsafe { from_glib(ffi::g_action_get_enabled(self.as_ref().to_glib_none().0)) }
    }

    fn name(&self) -> glib::GString {
        unsafe { from_glib_none(ffi::g_action_get_name(self.as_ref().to_glib_none().0)) }
    }

    fn parameter_type(&self) -> Option<glib::VariantType> {
        unsafe {
            from_glib_none(ffi::g_action_get_parameter_type(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn state(&self) -> Option<glib::Variant> {
        unsafe { from_glib_full(ffi::g_action_get_state(self.as_ref().to_glib_none().0)) }
    }

    fn state_hint(&self) -> Option<glib::Variant> {
        unsafe { from_glib_full(ffi::g_action_get_state_hint(self.as_ref().to_glib_none().0)) }
    }

    fn state_type(&self) -> Option<glib::VariantType> {
        unsafe { from_glib_none(ffi::g_action_get_state_type(self.as_ref().to_glib_none().0)) }
    }

    fn connect_enabled_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_enabled_trampoline<P: IsA<Action>, F: Fn(&P) + 'static>(
            this: *mut ffi::GAction,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Action::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::enabled\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_enabled_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_name_trampoline<P: IsA<Action>, F: Fn(&P) + 'static>(
            this: *mut ffi::GAction,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Action::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::name\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_name_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_parameter_type_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_parameter_type_trampoline<
            P: IsA<Action>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GAction,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Action::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::parameter-type\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_parameter_type_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_state_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_state_trampoline<P: IsA<Action>, F: Fn(&P) + 'static>(
            this: *mut ffi::GAction,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Action::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::state\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_state_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_state_type_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_state_type_trampoline<P: IsA<Action>, F: Fn(&P) + 'static>(
            this: *mut ffi::GAction,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Action::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::state-type\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_state_type_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for Action {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("Action")
    }
}