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gtk/auto/
app_chooser_button.rs

1// This file was generated by gir (https://github.com/gtk-rs/gir)
2// from gir-files (https://github.com/gtk-rs/gir-files)
3// DO NOT EDIT
4
5use crate::{
6    Align, AppChooser, Bin, Buildable, CellArea, CellEditable, CellLayout, ComboBox, Container,
7    ResizeMode, SensitivityType, TreeModel, Widget, ffi,
8};
9use glib::{
10    object::ObjectType as _,
11    prelude::*,
12    signal::{SignalHandlerId, connect_raw},
13    translate::*,
14};
15use std::boxed::Box as Box_;
16
17glib::wrapper! {
18    /// The [`AppChooserButton`][crate::AppChooserButton] is a widget that lets the user select
19    /// an application. It implements the [`AppChooser`][crate::AppChooser] interface.
20    ///
21    /// Initially, a [`AppChooserButton`][crate::AppChooserButton] selects the first application
22    /// in its list, which will either be the most-recently used application
23    /// or, if [`show-default-item`][struct@crate::AppChooserButton#show-default-item] is [`true`], the
24    /// default application.
25    ///
26    /// The list of applications shown in a [`AppChooserButton`][crate::AppChooserButton] includes
27    /// the recommended applications for the given content type. When
28    /// [`show-default-item`][struct@crate::AppChooserButton#show-default-item] is set, the default application
29    /// is also included. To let the user chooser other applications,
30    /// you can set the [`show-dialog-item`][struct@crate::AppChooserButton#show-dialog-item] property,
31    /// which allows to open a full [`AppChooserDialog`][crate::AppChooserDialog].
32    ///
33    /// It is possible to add custom items to the list, using
34    /// [`AppChooserButtonExt::append_custom_item()`][crate::prelude::AppChooserButtonExt::append_custom_item()]. These items cause
35    /// the [`custom-item-activated`][struct@crate::AppChooserButton#custom-item-activated] signal to be
36    /// emitted when they are selected.
37    ///
38    /// To track changes in the selected application, use the
39    /// [`changed`][struct@crate::ComboBox#changed] signal.
40    ///
41    /// ## Properties
42    ///
43    ///
44    /// #### `heading`
45    ///  The text to show at the top of the dialog that can be
46    /// opened from the button. The string may contain Pango markup.
47    ///
48    /// Readable | Writable
49    ///
50    ///
51    /// #### `show-default-item`
52    ///  The [`show-default-item`][struct@crate::AppChooserButton#show-default-item] property determines
53    /// whether the dropdown menu should show the default application
54    /// on top for the provided content type.
55    ///
56    /// Readable | Writable | Construct
57    ///
58    ///
59    /// #### `show-dialog-item`
60    ///  The [`show-dialog-item`][struct@crate::AppChooserButton#show-dialog-item] property determines
61    /// whether the dropdown menu should show an item that triggers
62    /// a [`AppChooserDialog`][crate::AppChooserDialog] when clicked.
63    ///
64    /// Readable | Writable | Construct
65    /// <details><summary><h4>ComboBox</h4></summary>
66    ///
67    ///
68    /// #### `active`
69    ///  The item which is currently active. If the model is a non-flat treemodel,
70    /// and the active item is not an immediate child of the root of the tree,
71    /// this property has the value
72    /// `gtk_tree_path_get_indices (path)[0]`,
73    /// where `path` is the [`TreePath`][crate::TreePath] of the active item.
74    ///
75    /// Readable | Writable
76    ///
77    ///
78    /// #### `active-id`
79    ///  The value of the ID column of the active row.
80    ///
81    /// Readable | Writable
82    ///
83    ///
84    /// #### `add-tearoffs`
85    ///  The add-tearoffs property controls whether generated menus
86    /// have tearoff menu items.
87    ///
88    /// Note that this only affects menu style combo boxes.
89    ///
90    /// Readable | Writable
91    ///
92    ///
93    /// #### `button-sensitivity`
94    ///  Whether the dropdown button is sensitive when
95    /// the model is empty.
96    ///
97    /// Readable | Writable
98    ///
99    ///
100    /// #### `cell-area`
101    ///  The [`CellArea`][crate::CellArea] used to layout cell renderers for this combo box.
102    ///
103    /// If no area is specified when creating the combo box with [`ComboBox::with_area()`][crate::ComboBox::with_area()]
104    /// a horizontally oriented [`CellAreaBox`][crate::CellAreaBox] will be used.
105    ///
106    /// Readable | Writable | Construct Only
107    ///
108    ///
109    /// #### `column-span-column`
110    ///  If this is set to a non-negative value, it must be the index of a column
111    /// of type `G_TYPE_INT` in the model. The value in that column for each item
112    /// will determine how many columns that item will span in the popup.
113    /// Therefore, values in this column must be greater than zero, and the sum of
114    /// an item’s column position + span should not exceed [`wrap-width`][struct@crate::ComboBox#wrap-width].
115    ///
116    /// Readable | Writable
117    ///
118    ///
119    /// #### `entry-text-column`
120    ///  The column in the combo box's model to associate with strings from the entry
121    /// if the combo was created with [`has-entry`][struct@crate::ComboBox#has-entry] = [`true`].
122    ///
123    /// Readable | Writable
124    ///
125    ///
126    /// #### `has-entry`
127    ///  Whether the combo box has an entry.
128    ///
129    /// Readable | Writable | Construct Only
130    ///
131    ///
132    /// #### `has-frame`
133    ///  The has-frame property controls whether a frame
134    /// is drawn around the entry.
135    ///
136    /// Readable | Writable
137    ///
138    ///
139    /// #### `id-column`
140    ///  The column in the combo box's model that provides string
141    /// IDs for the values in the model, if != -1.
142    ///
143    /// Readable | Writable
144    ///
145    ///
146    /// #### `model`
147    ///  The model from which the combo box takes the values shown
148    /// in the list.
149    ///
150    /// Readable | Writable
151    ///
152    ///
153    /// #### `popup-fixed-width`
154    ///  Whether the popup's width should be a fixed width matching the
155    /// allocated width of the combo box.
156    ///
157    /// Readable | Writable
158    ///
159    ///
160    /// #### `popup-shown`
161    ///  Whether the combo boxes dropdown is popped up.
162    /// Note that this property is mainly useful, because
163    /// it allows you to connect to notify::popup-shown.
164    ///
165    /// Readable
166    ///
167    ///
168    /// #### `row-span-column`
169    ///  If this is set to a non-negative value, it must be the index of a column
170    /// of type `G_TYPE_INT` in the model. The value in that column for each item
171    /// will determine how many rows that item will span in the popup. Therefore,
172    /// values in this column must be greater than zero.
173    ///
174    /// Readable | Writable
175    ///
176    ///
177    /// #### `tearoff-title`
178    ///  A title that may be displayed by the window manager
179    /// when the popup is torn-off.
180    ///
181    /// Readable | Writable
182    ///
183    ///
184    /// #### `wrap-width`
185    ///  If wrap-width is set to a positive value, items in the popup will be laid
186    /// out along multiple columns, starting a new row on reaching the wrap width.
187    ///
188    /// Readable | Writable
189    /// </details>
190    /// <details><summary><h4>Container</h4></summary>
191    ///
192    ///
193    /// #### `border-width`
194    ///  Readable | Writable
195    ///
196    ///
197    /// #### `child`
198    ///  Writable
199    ///
200    ///
201    /// #### `resize-mode`
202    ///  Readable | Writable
203    /// </details>
204    /// <details><summary><h4>Widget</h4></summary>
205    ///
206    ///
207    /// #### `app-paintable`
208    ///  Readable | Writable
209    ///
210    ///
211    /// #### `can-default`
212    ///  Readable | Writable
213    ///
214    ///
215    /// #### `can-focus`
216    ///  Readable | Writable
217    ///
218    ///
219    /// #### `composite-child`
220    ///  Readable
221    ///
222    ///
223    /// #### `double-buffered`
224    ///  Whether the widget is double buffered.
225    ///
226    /// Readable | Writable
227    ///
228    ///
229    /// #### `events`
230    ///  Readable | Writable
231    ///
232    ///
233    /// #### `expand`
234    ///  Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::Widget#hexpand] and [`vexpand`][struct@crate::Widget#vexpand]
235    ///
236    /// Readable | Writable
237    ///
238    ///
239    /// #### `focus-on-click`
240    ///  Whether the widget should grab focus when it is clicked with the mouse.
241    ///
242    /// This property is only relevant for widgets that can take focus.
243    ///
244    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
245    /// GtkComboBox) implemented this property individually.
246    ///
247    /// Readable | Writable
248    ///
249    ///
250    /// #### `halign`
251    ///  How to distribute horizontal space if widget gets extra space, see [`Align`][crate::Align]
252    ///
253    /// Readable | Writable
254    ///
255    ///
256    /// #### `has-default`
257    ///  Readable | Writable
258    ///
259    ///
260    /// #### `has-focus`
261    ///  Readable | Writable
262    ///
263    ///
264    /// #### `has-tooltip`
265    ///  Enables or disables the emission of [`query-tooltip`][struct@crate::Widget#query-tooltip] on `widget`.
266    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
267    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to determine
268    /// whether it will provide a tooltip or not.
269    ///
270    /// Note that setting this property to [`true`] for the first time will change
271    /// the event masks of the GdkWindows of this widget to include leave-notify
272    /// and motion-notify events. This cannot and will not be undone when the
273    /// property is set to [`false`] again.
274    ///
275    /// Readable | Writable
276    ///
277    ///
278    /// #### `height-request`
279    ///  Readable | Writable
280    ///
281    ///
282    /// #### `hexpand`
283    ///  Whether to expand horizontally. See [`WidgetExt::set_hexpand()`][crate::prelude::WidgetExt::set_hexpand()].
284    ///
285    /// Readable | Writable
286    ///
287    ///
288    /// #### `hexpand-set`
289    ///  Whether to use the [`hexpand`][struct@crate::Widget#hexpand] property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
290    ///
291    /// Readable | Writable
292    ///
293    ///
294    /// #### `is-focus`
295    ///  Readable | Writable
296    ///
297    ///
298    /// #### `margin`
299    ///  Sets all four sides' margin at once. If read, returns max
300    /// margin on any side.
301    ///
302    /// Readable | Writable
303    ///
304    ///
305    /// #### `margin-bottom`
306    ///  Margin on bottom side of widget.
307    ///
308    /// This property adds margin outside of the widget's normal size
309    /// request, the margin will be added in addition to the size from
310    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
311    ///
312    /// Readable | Writable
313    ///
314    ///
315    /// #### `margin-end`
316    ///  Margin on end of widget, horizontally. This property supports
317    /// left-to-right and right-to-left text directions.
318    ///
319    /// This property adds margin outside of the widget's normal size
320    /// request, the margin will be added in addition to the size from
321    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
322    ///
323    /// Readable | Writable
324    ///
325    ///
326    /// #### `margin-left`
327    ///  Margin on left side of widget.
328    ///
329    /// This property adds margin outside of the widget's normal size
330    /// request, the margin will be added in addition to the size from
331    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
332    ///
333    /// Readable | Writable
334    ///
335    ///
336    /// #### `margin-right`
337    ///  Margin on right side of widget.
338    ///
339    /// This property adds margin outside of the widget's normal size
340    /// request, the margin will be added in addition to the size from
341    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
342    ///
343    /// Readable | Writable
344    ///
345    ///
346    /// #### `margin-start`
347    ///  Margin on start of widget, horizontally. This property supports
348    /// left-to-right and right-to-left text directions.
349    ///
350    /// This property adds margin outside of the widget's normal size
351    /// request, the margin will be added in addition to the size from
352    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
353    ///
354    /// Readable | Writable
355    ///
356    ///
357    /// #### `margin-top`
358    ///  Margin on top side of widget.
359    ///
360    /// This property adds margin outside of the widget's normal size
361    /// request, the margin will be added in addition to the size from
362    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
363    ///
364    /// Readable | Writable
365    ///
366    ///
367    /// #### `name`
368    ///  Readable | Writable
369    ///
370    ///
371    /// #### `no-show-all`
372    ///  Readable | Writable
373    ///
374    ///
375    /// #### `opacity`
376    ///  The requested opacity of the widget. See [`WidgetExt::set_opacity()`][crate::prelude::WidgetExt::set_opacity()] for
377    /// more details about window opacity.
378    ///
379    /// Before 3.8 this was only available in GtkWindow
380    ///
381    /// Readable | Writable
382    ///
383    ///
384    /// #### `parent`
385    ///  Readable | Writable
386    ///
387    ///
388    /// #### `receives-default`
389    ///  Readable | Writable
390    ///
391    ///
392    /// #### `scale-factor`
393    ///  The scale factor of the widget. See [`WidgetExt::scale_factor()`][crate::prelude::WidgetExt::scale_factor()] for
394    /// more details about widget scaling.
395    ///
396    /// Readable
397    ///
398    ///
399    /// #### `sensitive`
400    ///  Readable | Writable
401    ///
402    ///
403    /// #### `style`
404    ///  The style of the widget, which contains information about how it will look (colors, etc).
405    ///
406    /// Readable | Writable
407    ///
408    ///
409    /// #### `tooltip-markup`
410    ///  Sets the text of tooltip to be the given string, which is marked up
411    /// with the [Pango text markup language][PangoMarkupFormat].
412    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
413    ///
414    /// This is a convenience property which will take care of getting the
415    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
416    /// will automatically be set to [`true`] and there will be taken care of
417    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
418    ///
419    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
420    /// are set, the last one wins.
421    ///
422    /// Readable | Writable
423    ///
424    ///
425    /// #### `tooltip-text`
426    ///  Sets the text of tooltip to be the given string.
427    ///
428    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
429    ///
430    /// This is a convenience property which will take care of getting the
431    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
432    /// will automatically be set to [`true`] and there will be taken care of
433    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
434    ///
435    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
436    /// are set, the last one wins.
437    ///
438    /// Readable | Writable
439    ///
440    ///
441    /// #### `valign`
442    ///  How to distribute vertical space if widget gets extra space, see [`Align`][crate::Align]
443    ///
444    /// Readable | Writable
445    ///
446    ///
447    /// #### `vexpand`
448    ///  Whether to expand vertically. See [`WidgetExt::set_vexpand()`][crate::prelude::WidgetExt::set_vexpand()].
449    ///
450    /// Readable | Writable
451    ///
452    ///
453    /// #### `vexpand-set`
454    ///  Whether to use the [`vexpand`][struct@crate::Widget#vexpand] property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
455    ///
456    /// Readable | Writable
457    ///
458    ///
459    /// #### `visible`
460    ///  Readable | Writable
461    ///
462    ///
463    /// #### `width-request`
464    ///  Readable | Writable
465    ///
466    ///
467    /// #### `window`
468    ///  The widget's window if it is realized, [`None`] otherwise.
469    ///
470    /// Readable
471    /// </details>
472    /// <details><summary><h4>CellEditable</h4></summary>
473    ///
474    ///
475    /// #### `editing-canceled`
476    ///  Indicates whether editing on the cell has been canceled.
477    ///
478    /// Readable | Writable
479    /// </details>
480    /// <details><summary><h4>AppChooser</h4></summary>
481    ///
482    ///
483    /// #### `content-type`
484    ///  The content type of the [`AppChooser`][crate::AppChooser] object.
485    ///
486    /// See [GContentType][gio-GContentType]
487    /// for more information about content types.
488    ///
489    /// Readable | Writable | Construct Only
490    /// </details>
491    ///
492    /// ## Signals
493    ///
494    ///
495    /// #### `custom-item-activated`
496    ///  Emitted when a custom item, previously added with
497    /// [`AppChooserButtonExt::append_custom_item()`][crate::prelude::AppChooserButtonExt::append_custom_item()], is activated from the
498    /// dropdown menu.
499    ///
500    /// Detailed
501    /// <details><summary><h4>ComboBox</h4></summary>
502    ///
503    ///
504    /// #### `changed`
505    ///  The changed signal is emitted when the active
506    /// item is changed. The can be due to the user selecting
507    /// a different item from the list, or due to a
508    /// call to [`ComboBoxExt::set_active_iter()`][crate::prelude::ComboBoxExt::set_active_iter()].
509    /// It will also be emitted while typing into the entry of a combo box
510    /// with an entry.
511    ///
512    ///
513    ///
514    ///
515    /// #### `format-entry-text`
516    ///  value,
517    ///  -1);
518    ///
519    ///  return g_strdup_printf ("`g`", value);
520    /// }
521    /// ]|
522    ///
523    ///
524    ///
525    ///
526    /// #### `move-active`
527    ///  The ::move-active signal is a
528    /// [keybinding signal][GtkBindingSignal]
529    /// which gets emitted to move the active selection.
530    ///
531    /// Action
532    ///
533    ///
534    /// #### `popdown`
535    ///  The ::popdown signal is a
536    /// [keybinding signal][GtkBindingSignal]
537    /// which gets emitted to popdown the combo box list.
538    ///
539    /// The default bindings for this signal are Alt+Up and Escape.
540    ///
541    /// Action
542    ///
543    ///
544    /// #### `popup`
545    ///  The ::popup signal is a
546    /// [keybinding signal][GtkBindingSignal]
547    /// which gets emitted to popup the combo box list.
548    ///
549    /// The default binding for this signal is Alt+Down.
550    ///
551    /// Action
552    /// </details>
553    /// <details><summary><h4>Container</h4></summary>
554    ///
555    ///
556    /// #### `add`
557    ///
558    ///
559    ///
560    /// #### `check-resize`
561    ///
562    ///
563    ///
564    /// #### `remove`
565    ///
566    ///
567    ///
568    /// #### `set-focus-child`
569    ///
570    /// </details>
571    /// <details><summary><h4>Widget</h4></summary>
572    ///
573    ///
574    /// #### `accel-closures-changed`
575    ///
576    ///
577    ///
578    /// #### `button-press-event`
579    ///  The ::button-press-event signal will be emitted when a button
580    /// (typically from a mouse) is pressed.
581    ///
582    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the
583    /// widget needs to enable the [`gdk::EventMask::BUTTON_PRESS_MASK`][crate::gdk::EventMask::BUTTON_PRESS_MASK] mask.
584    ///
585    /// This signal will be sent to the grab widget if there is one.
586    ///
587    ///
588    ///
589    ///
590    /// #### `button-release-event`
591    ///  The ::button-release-event signal will be emitted when a button
592    /// (typically from a mouse) is released.
593    ///
594    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the
595    /// widget needs to enable the [`gdk::EventMask::BUTTON_RELEASE_MASK`][crate::gdk::EventMask::BUTTON_RELEASE_MASK] mask.
596    ///
597    /// This signal will be sent to the grab widget if there is one.
598    ///
599    ///
600    ///
601    ///
602    /// #### `can-activate-accel`
603    ///  Determines whether an accelerator that activates the signal
604    /// identified by `signal_id` can currently be activated.
605    /// This signal is present to allow applications and derived
606    /// widgets to override the default [`Widget`][crate::Widget] handling
607    /// for determining whether an accelerator can be activated.
608    ///
609    ///
610    ///
611    ///
612    /// #### `child-notify`
613    ///  The ::child-notify signal is emitted for each
614    /// [child property][child-properties] that has
615    /// changed on an object. The signal's detail holds the property name.
616    ///
617    /// Detailed
618    ///
619    ///
620    /// #### `composited-changed`
621    ///  The ::composited-changed signal is emitted when the composited
622    /// status of `widgets` screen changes.
623    /// See [`Screen::is_composited()`][crate::gdk::Screen::is_composited()].
624    ///
625    /// Action
626    ///
627    ///
628    /// #### `configure-event`
629    ///  The ::configure-event signal will be emitted when the size, position or
630    /// stacking of the `widget`'s window has changed.
631    ///
632    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
633    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
634    /// automatically for all new windows.
635    ///
636    ///
637    ///
638    ///
639    /// #### `damage-event`
640    ///  Emitted when a redirected window belonging to `widget` gets drawn into.
641    /// The region/area members of the event shows what area of the redirected
642    /// drawable was drawn into.
643    ///
644    ///
645    ///
646    ///
647    /// #### `delete-event`
648    ///  The ::delete-event signal is emitted if a user requests that
649    /// a toplevel window is closed. The default handler for this signal
650    /// destroys the window. Connecting [`WidgetExtManual::hide_on_delete()`][crate::prelude::WidgetExtManual::hide_on_delete()] to
651    /// this signal will cause the window to be hidden instead, so that
652    /// it can later be shown again without reconstructing it.
653    ///
654    ///
655    ///
656    ///
657    /// #### `destroy`
658    ///  Signals that all holders of a reference to the widget should release
659    /// the reference that they hold. May result in finalization of the widget
660    /// if all references are released.
661    ///
662    /// This signal is not suitable for saving widget state.
663    ///
664    ///
665    ///
666    ///
667    /// #### `destroy-event`
668    ///  The ::destroy-event signal is emitted when a [`gdk::Window`][crate::gdk::Window] is destroyed.
669    /// You rarely get this signal, because most widgets disconnect themselves
670    /// from their window before they destroy it, so no widget owns the
671    /// window at destroy time.
672    ///
673    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
674    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
675    /// automatically for all new windows.
676    ///
677    ///
678    ///
679    ///
680    /// #### `direction-changed`
681    ///  The ::direction-changed signal is emitted when the text direction
682    /// of a widget changes.
683    ///
684    ///
685    ///
686    ///
687    /// #### `drag-begin`
688    ///  The ::drag-begin signal is emitted on the drag source when a drag is
689    /// started. A typical reason to connect to this signal is to set up a
690    /// custom drag icon with e.g. [`WidgetExt::drag_source_set_icon_pixbuf()`][crate::prelude::WidgetExt::drag_source_set_icon_pixbuf()].
691    ///
692    /// Note that some widgets set up a drag icon in the default handler of
693    /// this signal, so you may have to use `g_signal_connect_after()` to
694    /// override what the default handler did.
695    ///
696    ///
697    ///
698    ///
699    /// #### `drag-data-delete`
700    ///  The ::drag-data-delete signal is emitted on the drag source when a drag
701    /// with the action [`gdk::DragAction::MOVE`][crate::gdk::DragAction::MOVE] is successfully completed. The signal
702    /// handler is responsible for deleting the data that has been dropped. What
703    /// "delete" means depends on the context of the drag operation.
704    ///
705    ///
706    ///
707    ///
708    /// #### `drag-data-get`
709    ///  The ::drag-data-get signal is emitted on the drag source when the drop
710    /// site requests the data which is dragged. It is the responsibility of
711    /// the signal handler to fill `data` with the data in the format which
712    /// is indicated by `info`. See [`SelectionData::set()`][crate::SelectionData::set()] and
713    /// [`SelectionData::set_text()`][crate::SelectionData::set_text()].
714    ///
715    ///
716    ///
717    ///
718    /// #### `drag-data-received`
719    ///  format == 8))
720    ///  {
721    ///  GdkDragAction action;
722    ///
723    ///  // handle data here
724    ///
725    ///  action = gdk_drag_context_get_selected_action (context);
726    ///  if (action == GDK_ACTION_ASK)
727    ///  {
728    ///  GtkWidget *dialog;
729    ///  gint response;
730    ///
731    ///  dialog = gtk_message_dialog_new (NULL,
732    ///  GTK_DIALOG_MODAL |
733    ///  GTK_DIALOG_DESTROY_WITH_PARENT,
734    ///  GTK_MESSAGE_INFO,
735    ///  GTK_BUTTONS_YES_NO,
736    ///  "Move the data ?\n");
737    ///  response = gtk_dialog_run (GTK_DIALOG (dialog));
738    ///  gtk_widget_destroy (dialog);
739    ///
740    ///  if (response == GTK_RESPONSE_YES)
741    ///  action = GDK_ACTION_MOVE;
742    ///  else
743    ///  action = GDK_ACTION_COPY;
744    ///  }
745    ///
746    ///  gtk_drag_finish (context, TRUE, action == GDK_ACTION_MOVE, time);
747    ///  }
748    ///  else
749    ///  gtk_drag_finish (context, FALSE, FALSE, time);
750    ///  }
751    /// ]|
752    ///
753    ///
754    ///
755    ///
756    /// #### `drag-drop`
757    ///  The ::drag-drop signal is emitted on the drop site when the user drops
758    /// the data onto the widget. The signal handler must determine whether
759    /// the cursor position is in a drop zone or not. If it is not in a drop
760    /// zone, it returns [`false`] and no further processing is necessary.
761    /// Otherwise, the handler returns [`true`]. In this case, the handler must
762    /// ensure that `gtk_drag_finish()` is called to let the source know that
763    /// the drop is done. The call to `gtk_drag_finish()` can be done either
764    /// directly or in a [`drag-data-received`][struct@crate::Widget#drag-data-received] handler which gets
765    /// triggered by calling [`WidgetExt::drag_get_data()`][crate::prelude::WidgetExt::drag_get_data()] to receive the data for one
766    /// or more of the supported targets.
767    ///
768    ///
769    ///
770    ///
771    /// #### `drag-end`
772    ///  The ::drag-end signal is emitted on the drag source when a drag is
773    /// finished. A typical reason to connect to this signal is to undo
774    /// things done in [`drag-begin`][struct@crate::Widget#drag-begin].
775    ///
776    ///
777    ///
778    ///
779    /// #### `drag-failed`
780    ///  The ::drag-failed signal is emitted on the drag source when a drag has
781    /// failed. The signal handler may hook custom code to handle a failed DnD
782    /// operation based on the type of error, it returns [`true`] is the failure has
783    /// been already handled (not showing the default "drag operation failed"
784    /// animation), otherwise it returns [`false`].
785    ///
786    ///
787    ///
788    ///
789    /// #### `drag-leave`
790    ///  The ::drag-leave signal is emitted on the drop site when the cursor
791    /// leaves the widget. A typical reason to connect to this signal is to
792    /// undo things done in [`drag-motion`][struct@crate::Widget#drag-motion], e.g. undo highlighting
793    /// with [`WidgetExt::drag_unhighlight()`][crate::prelude::WidgetExt::drag_unhighlight()].
794    ///
795    ///
796    /// Likewise, the [`drag-leave`][struct@crate::Widget#drag-leave] signal is also emitted before the
797    /// ::drag-drop signal, for instance to allow cleaning up of a preview item
798    /// created in the [`drag-motion`][struct@crate::Widget#drag-motion] signal handler.
799    ///
800    ///
801    ///
802    ///
803    /// #### `drag-motion`
804    ///  suggested_action,
805    ///  time);
806    ///  }
807    ///  else
808    ///  {
809    ///  // accept the drop
810    ///  }
811    /// }
812    /// ]|
813    ///
814    ///
815    ///
816    ///
817    /// #### `draw`
818    ///  This signal is emitted when a widget is supposed to render itself.
819    /// The `widget`'s top left corner must be painted at the origin of
820    /// the passed in context and be sized to the values returned by
821    /// [`WidgetExt::allocated_width()`][crate::prelude::WidgetExt::allocated_width()] and
822    /// [`WidgetExt::allocated_height()`][crate::prelude::WidgetExt::allocated_height()].
823    ///
824    /// Signal handlers connected to this signal can modify the cairo
825    /// context passed as `cr` in any way they like and don't need to
826    /// restore it. The signal emission takes care of calling `cairo_save()`
827    /// before and `cairo_restore()` after invoking the handler.
828    ///
829    /// The signal handler will get a `cr` with a clip region already set to the
830    /// widget's dirty region, i.e. to the area that needs repainting. Complicated
831    /// widgets that want to avoid redrawing themselves completely can get the full
832    /// extents of the clip region with `gdk_cairo_get_clip_rectangle()`, or they can
833    /// get a finer-grained representation of the dirty region with
834    /// `cairo_copy_clip_rectangle_list()`.
835    ///
836    ///
837    ///
838    ///
839    /// #### `enter-notify-event`
840    ///  The ::enter-notify-event will be emitted when the pointer enters
841    /// the `widget`'s window.
842    ///
843    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
844    /// to enable the [`gdk::EventMask::ENTER_NOTIFY_MASK`][crate::gdk::EventMask::ENTER_NOTIFY_MASK] mask.
845    ///
846    /// This signal will be sent to the grab widget if there is one.
847    ///
848    ///
849    ///
850    ///
851    /// #### `event`
852    ///  The GTK+ main loop will emit three signals for each GDK event delivered
853    /// to a widget: one generic ::event signal, another, more specific,
854    /// signal that matches the type of event delivered (e.g.
855    /// [`key-press-event`][struct@crate::Widget#key-press-event]) and finally a generic
856    /// [`event-after`][struct@crate::Widget#event-after] signal.
857    ///
858    ///
859    ///
860    ///
861    /// #### `event-after`
862    ///  After the emission of the [`event`][struct@crate::Widget#event] signal and (optionally)
863    /// the second more specific signal, ::event-after will be emitted
864    /// regardless of the previous two signals handlers return values.
865    ///
866    ///
867    ///
868    ///
869    /// #### `focus`
870    ///
871    ///
872    ///
873    /// #### `focus-in-event`
874    ///  The ::focus-in-event signal will be emitted when the keyboard focus
875    /// enters the `widget`'s window.
876    ///
877    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
878    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
879    ///
880    ///
881    ///
882    ///
883    /// #### `focus-out-event`
884    ///  The ::focus-out-event signal will be emitted when the keyboard focus
885    /// leaves the `widget`'s window.
886    ///
887    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
888    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
889    ///
890    ///
891    ///
892    ///
893    /// #### `grab-broken-event`
894    ///  Emitted when a pointer or keyboard grab on a window belonging
895    /// to `widget` gets broken.
896    ///
897    /// On X11, this happens when the grab window becomes unviewable
898    /// (i.e. it or one of its ancestors is unmapped), or if the same
899    /// application grabs the pointer or keyboard again.
900    ///
901    ///
902    ///
903    ///
904    /// #### `grab-focus`
905    ///  Action
906    ///
907    ///
908    /// #### `grab-notify`
909    ///  The ::grab-notify signal is emitted when a widget becomes
910    /// shadowed by a GTK+ grab (not a pointer or keyboard grab) on
911    /// another widget, or when it becomes unshadowed due to a grab
912    /// being removed.
913    ///
914    /// A widget is shadowed by a [`WidgetExt::grab_add()`][crate::prelude::WidgetExt::grab_add()] when the topmost
915    /// grab widget in the grab stack of its window group is not
916    /// its ancestor.
917    ///
918    ///
919    ///
920    ///
921    /// #### `hide`
922    ///  The ::hide signal is emitted when `widget` is hidden, for example with
923    /// [`WidgetExt::hide()`][crate::prelude::WidgetExt::hide()].
924    ///
925    ///
926    ///
927    ///
928    /// #### `hierarchy-changed`
929    ///  The ::hierarchy-changed signal is emitted when the
930    /// anchored state of a widget changes. A widget is
931    /// “anchored” when its toplevel
932    /// ancestor is a [`Window`][crate::Window]. This signal is emitted when
933    /// a widget changes from un-anchored to anchored or vice-versa.
934    ///
935    ///
936    ///
937    ///
938    /// #### `key-press-event`
939    ///  The ::key-press-event signal is emitted when a key is pressed. The signal
940    /// emission will reoccur at the key-repeat rate when the key is kept pressed.
941    ///
942    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
943    /// to enable the [`gdk::EventMask::KEY_PRESS_MASK`][crate::gdk::EventMask::KEY_PRESS_MASK] mask.
944    ///
945    /// This signal will be sent to the grab widget if there is one.
946    ///
947    ///
948    ///
949    ///
950    /// #### `key-release-event`
951    ///  The ::key-release-event signal is emitted when a key is released.
952    ///
953    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
954    /// to enable the [`gdk::EventMask::KEY_RELEASE_MASK`][crate::gdk::EventMask::KEY_RELEASE_MASK] mask.
955    ///
956    /// This signal will be sent to the grab widget if there is one.
957    ///
958    ///
959    ///
960    ///
961    /// #### `keynav-failed`
962    ///  Gets emitted if keyboard navigation fails.
963    /// See [`WidgetExt::keynav_failed()`][crate::prelude::WidgetExt::keynav_failed()] for details.
964    ///
965    ///
966    ///
967    ///
968    /// #### `leave-notify-event`
969    ///  The ::leave-notify-event will be emitted when the pointer leaves
970    /// the `widget`'s window.
971    ///
972    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
973    /// to enable the [`gdk::EventMask::LEAVE_NOTIFY_MASK`][crate::gdk::EventMask::LEAVE_NOTIFY_MASK] mask.
974    ///
975    /// This signal will be sent to the grab widget if there is one.
976    ///
977    ///
978    ///
979    ///
980    /// #### `map`
981    ///  The ::map signal is emitted when `widget` is going to be mapped, that is
982    /// when the widget is visible (which is controlled with
983    /// [`WidgetExt::set_visible()`][crate::prelude::WidgetExt::set_visible()]) and all its parents up to the toplevel widget
984    /// are also visible. Once the map has occurred, [`map-event`][struct@crate::Widget#map-event] will
985    /// be emitted.
986    ///
987    /// The ::map signal can be used to determine whether a widget will be drawn,
988    /// for instance it can resume an animation that was stopped during the
989    /// emission of [`unmap`][struct@crate::Widget#unmap].
990    ///
991    ///
992    ///
993    ///
994    /// #### `map-event`
995    ///  The ::map-event signal will be emitted when the `widget`'s window is
996    /// mapped. A window is mapped when it becomes visible on the screen.
997    ///
998    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
999    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
1000    /// automatically for all new windows.
1001    ///
1002    ///
1003    ///
1004    ///
1005    /// #### `mnemonic-activate`
1006    ///  The default handler for this signal activates `widget` if `group_cycling`
1007    /// is [`false`], or just makes `widget` grab focus if `group_cycling` is [`true`].
1008    ///
1009    ///
1010    ///
1011    ///
1012    /// #### `motion-notify-event`
1013    ///  The ::motion-notify-event signal is emitted when the pointer moves
1014    /// over the widget's [`gdk::Window`][crate::gdk::Window].
1015    ///
1016    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget
1017    /// needs to enable the [`gdk::EventMask::POINTER_MOTION_MASK`][crate::gdk::EventMask::POINTER_MOTION_MASK] mask.
1018    ///
1019    /// This signal will be sent to the grab widget if there is one.
1020    ///
1021    ///
1022    ///
1023    ///
1024    /// #### `move-focus`
1025    ///  Action
1026    ///
1027    ///
1028    /// #### `parent-set`
1029    ///  The ::parent-set signal is emitted when a new parent
1030    /// has been set on a widget.
1031    ///
1032    ///
1033    ///
1034    ///
1035    /// #### `popup-menu`
1036    ///  This signal gets emitted whenever a widget should pop up a context
1037    /// menu. This usually happens through the standard key binding mechanism;
1038    /// by pressing a certain key while a widget is focused, the user can cause
1039    /// the widget to pop up a menu. For example, the [`Entry`][crate::Entry] widget creates
1040    /// a menu with clipboard commands. See the
1041    /// [Popup Menu Migration Checklist][checklist-popup-menu]
1042    /// for an example of how to use this signal.
1043    ///
1044    /// Action
1045    ///
1046    ///
1047    /// #### `property-notify-event`
1048    ///  The ::property-notify-event signal will be emitted when a property on
1049    /// the `widget`'s window has been changed or deleted.
1050    ///
1051    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
1052    /// to enable the [`gdk::EventMask::PROPERTY_CHANGE_MASK`][crate::gdk::EventMask::PROPERTY_CHANGE_MASK] mask.
1053    ///
1054    ///
1055    ///
1056    ///
1057    /// #### `proximity-in-event`
1058    ///  To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
1059    /// to enable the [`gdk::EventMask::PROXIMITY_IN_MASK`][crate::gdk::EventMask::PROXIMITY_IN_MASK] mask.
1060    ///
1061    /// This signal will be sent to the grab widget if there is one.
1062    ///
1063    ///
1064    ///
1065    ///
1066    /// #### `proximity-out-event`
1067    ///  To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
1068    /// to enable the [`gdk::EventMask::PROXIMITY_OUT_MASK`][crate::gdk::EventMask::PROXIMITY_OUT_MASK] mask.
1069    ///
1070    /// This signal will be sent to the grab widget if there is one.
1071    ///
1072    ///
1073    ///
1074    ///
1075    /// #### `query-tooltip`
1076    ///  Emitted when [`has-tooltip`][struct@crate::Widget#has-tooltip] is [`true`] and the hover timeout
1077    /// has expired with the cursor hovering "above" `widget`; or emitted when `widget` got
1078    /// focus in keyboard mode.
1079    ///
1080    /// Using the given coordinates, the signal handler should determine
1081    /// whether a tooltip should be shown for `widget`. If this is the case
1082    /// [`true`] should be returned, [`false`] otherwise. Note that if
1083    /// `keyboard_mode` is [`true`], the values of `x` and `y` are undefined and
1084    /// should not be used.
1085    ///
1086    /// The signal handler is free to manipulate `tooltip` with the therefore
1087    /// destined function calls.
1088    ///
1089    ///
1090    ///
1091    ///
1092    /// #### `realize`
1093    ///  The ::realize signal is emitted when `widget` is associated with a
1094    /// [`gdk::Window`][crate::gdk::Window], which means that [`WidgetExt::realize()`][crate::prelude::WidgetExt::realize()] has been called or the
1095    /// widget has been mapped (that is, it is going to be drawn).
1096    ///
1097    ///
1098    ///
1099    ///
1100    /// #### `screen-changed`
1101    ///  The ::screen-changed signal gets emitted when the
1102    /// screen of a widget has changed.
1103    ///
1104    ///
1105    ///
1106    ///
1107    /// #### `scroll-event`
1108    ///  The ::scroll-event signal is emitted when a button in the 4 to 7
1109    /// range is pressed. Wheel mice are usually configured to generate
1110    /// button press events for buttons 4 and 5 when the wheel is turned.
1111    ///
1112    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
1113    /// to enable the [`gdk::EventMask::SCROLL_MASK`][crate::gdk::EventMask::SCROLL_MASK] mask.
1114    ///
1115    /// This signal will be sent to the grab widget if there is one.
1116    ///
1117    ///
1118    ///
1119    ///
1120    /// #### `selection-clear-event`
1121    ///  The ::selection-clear-event signal will be emitted when the
1122    /// the `widget`'s window has lost ownership of a selection.
1123    ///
1124    ///
1125    ///
1126    ///
1127    /// #### `selection-get`
1128    ///
1129    ///
1130    ///
1131    /// #### `selection-notify-event`
1132    ///
1133    ///
1134    ///
1135    /// #### `selection-received`
1136    ///
1137    ///
1138    ///
1139    /// #### `selection-request-event`
1140    ///  The ::selection-request-event signal will be emitted when
1141    /// another client requests ownership of the selection owned by
1142    /// the `widget`'s window.
1143    ///
1144    ///
1145    ///
1146    ///
1147    /// #### `show`
1148    ///  The ::show signal is emitted when `widget` is shown, for example with
1149    /// [`WidgetExt::show()`][crate::prelude::WidgetExt::show()].
1150    ///
1151    ///
1152    ///
1153    ///
1154    /// #### `show-help`
1155    ///  Action
1156    ///
1157    ///
1158    /// #### `size-allocate`
1159    ///
1160    ///
1161    ///
1162    /// #### `state-changed`
1163    ///  The ::state-changed signal is emitted when the widget state changes.
1164    /// See `gtk_widget_get_state()`.
1165    ///
1166    ///
1167    ///
1168    ///
1169    /// #### `state-flags-changed`
1170    ///  The ::state-flags-changed signal is emitted when the widget state
1171    /// changes, see [`WidgetExt::state_flags()`][crate::prelude::WidgetExt::state_flags()].
1172    ///
1173    ///
1174    ///
1175    ///
1176    /// #### `style-set`
1177    ///  The ::style-set signal is emitted when a new style has been set
1178    /// on a widget. Note that style-modifying functions like
1179    /// `gtk_widget_modify_base()` also cause this signal to be emitted.
1180    ///
1181    /// Note that this signal is emitted for changes to the deprecated
1182    /// `GtkStyle`. To track changes to the [`StyleContext`][crate::StyleContext] associated
1183    /// with a widget, use the [`style-updated`][struct@crate::Widget#style-updated] signal.
1184    ///
1185    ///
1186    ///
1187    ///
1188    /// #### `style-updated`
1189    ///  The ::style-updated signal is a convenience signal that is emitted when the
1190    /// [`changed`][struct@crate::StyleContext#changed] signal is emitted on the `widget`'s associated
1191    /// [`StyleContext`][crate::StyleContext] as returned by [`WidgetExt::style_context()`][crate::prelude::WidgetExt::style_context()].
1192    ///
1193    /// Note that style-modifying functions like `gtk_widget_override_color()` also
1194    /// cause this signal to be emitted.
1195    ///
1196    ///
1197    ///
1198    ///
1199    /// #### `touch-event`
1200    ///
1201    ///
1202    ///
1203    /// #### `unmap`
1204    ///  The ::unmap signal is emitted when `widget` is going to be unmapped, which
1205    /// means that either it or any of its parents up to the toplevel widget have
1206    /// been set as hidden.
1207    ///
1208    /// As ::unmap indicates that a widget will not be shown any longer, it can be
1209    /// used to, for example, stop an animation on the widget.
1210    ///
1211    ///
1212    ///
1213    ///
1214    /// #### `unmap-event`
1215    ///  The ::unmap-event signal will be emitted when the `widget`'s window is
1216    /// unmapped. A window is unmapped when it becomes invisible on the screen.
1217    ///
1218    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
1219    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
1220    /// automatically for all new windows.
1221    ///
1222    ///
1223    ///
1224    ///
1225    /// #### `unrealize`
1226    ///  The ::unrealize signal is emitted when the [`gdk::Window`][crate::gdk::Window] associated with
1227    /// `widget` is destroyed, which means that [`WidgetExt::unrealize()`][crate::prelude::WidgetExt::unrealize()] has been
1228    /// called or the widget has been unmapped (that is, it is going to be
1229    /// hidden).
1230    ///
1231    ///
1232    ///
1233    ///
1234    /// #### `visibility-notify-event`
1235    ///  The ::visibility-notify-event will be emitted when the `widget`'s
1236    /// window is obscured or unobscured.
1237    ///
1238    /// To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
1239    /// to enable the [`gdk::EventMask::VISIBILITY_NOTIFY_MASK`][crate::gdk::EventMask::VISIBILITY_NOTIFY_MASK] mask.
1240    ///
1241    ///
1242    ///
1243    ///
1244    /// #### `window-state-event`
1245    ///  The ::window-state-event will be emitted when the state of the
1246    /// toplevel window associated to the `widget` changes.
1247    ///
1248    /// To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget
1249    /// needs to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable
1250    /// this mask automatically for all new windows.
1251    ///
1252    ///
1253    /// </details>
1254    /// <details><summary><h4>CellEditable</h4></summary>
1255    ///
1256    ///
1257    /// #### `editing-done`
1258    ///  This signal is a sign for the cell renderer to update its
1259    /// value from the `cell_editable`.
1260    ///
1261    /// Implementations of [`CellEditable`][crate::CellEditable] are responsible for
1262    /// emitting this signal when they are done editing, e.g.
1263    /// [`Entry`][crate::Entry] emits this signal when the user presses Enter. Typical things to
1264    /// do in a handler for ::editing-done are to capture the edited value,
1265    /// disconnect the `cell_editable` from signals on the [`CellRenderer`][crate::CellRenderer], etc.
1266    ///
1267    /// [`CellEditableExt::editing_done()`][crate::prelude::CellEditableExt::editing_done()] is a convenience method
1268    /// for emitting [`editing-done`][struct@crate::CellEditable#editing-done].
1269    ///
1270    ///
1271    ///
1272    ///
1273    /// #### `remove-widget`
1274    ///  This signal is meant to indicate that the cell is finished
1275    /// editing, and the `cell_editable` widget is being removed and may
1276    /// subsequently be destroyed.
1277    ///
1278    /// Implementations of [`CellEditable`][crate::CellEditable] are responsible for
1279    /// emitting this signal when they are done editing. It must
1280    /// be emitted after the [`editing-done`][struct@crate::CellEditable#editing-done] signal,
1281    /// to give the cell renderer a chance to update the cell's value
1282    /// before the widget is removed.
1283    ///
1284    /// [`CellEditableExt::remove_widget()`][crate::prelude::CellEditableExt::remove_widget()] is a convenience method
1285    /// for emitting [`remove-widget`][struct@crate::CellEditable#remove-widget].
1286    ///
1287    ///
1288    /// </details>
1289    ///
1290    /// # Implements
1291    ///
1292    /// [`AppChooserButtonExt`][trait@crate::prelude::AppChooserButtonExt], [`ComboBoxExt`][trait@crate::prelude::ComboBoxExt], [`BinExt`][trait@crate::prelude::BinExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`CellEditableExt`][trait@crate::prelude::CellEditableExt], [`CellLayoutExt`][trait@crate::prelude::CellLayoutExt], [`AppChooserExt`][trait@crate::prelude::AppChooserExt], [`ComboBoxExtManual`][trait@crate::prelude::ComboBoxExtManual], [`ContainerExtManual`][trait@crate::prelude::ContainerExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
1293    #[doc(alias = "GtkAppChooserButton")]
1294    pub struct AppChooserButton(Object<ffi::GtkAppChooserButton, ffi::GtkAppChooserButtonClass>) @extends ComboBox, Bin, Container, Widget, @implements Buildable, CellEditable, CellLayout, AppChooser;
1295
1296    match fn {
1297        type_ => || ffi::gtk_app_chooser_button_get_type(),
1298    }
1299}
1300
1301impl AppChooserButton {
1302    pub const NONE: Option<&'static AppChooserButton> = None;
1303
1304    /// Creates a new [`AppChooserButton`][crate::AppChooserButton] for applications
1305    /// that can handle content of the given type.
1306    /// ## `content_type`
1307    /// the content type to show applications for
1308    ///
1309    /// # Returns
1310    ///
1311    /// a newly created [`AppChooserButton`][crate::AppChooserButton]
1312    #[doc(alias = "gtk_app_chooser_button_new")]
1313    pub fn new(content_type: &str) -> AppChooserButton {
1314        assert_initialized_main_thread!();
1315        unsafe {
1316            Widget::from_glib_none(ffi::gtk_app_chooser_button_new(
1317                content_type.to_glib_none().0,
1318            ))
1319            .unsafe_cast()
1320        }
1321    }
1322
1323    // rustdoc-stripper-ignore-next
1324    /// Creates a new builder-pattern struct instance to construct [`AppChooserButton`] objects.
1325    ///
1326    /// This method returns an instance of [`AppChooserButtonBuilder`](crate::builders::AppChooserButtonBuilder) which can be used to create [`AppChooserButton`] objects.
1327    pub fn builder() -> AppChooserButtonBuilder {
1328        AppChooserButtonBuilder::new()
1329    }
1330}
1331
1332impl Default for AppChooserButton {
1333    fn default() -> Self {
1334        glib::object::Object::new::<Self>()
1335    }
1336}
1337
1338// rustdoc-stripper-ignore-next
1339/// A [builder-pattern] type to construct [`AppChooserButton`] objects.
1340///
1341/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
1342#[must_use = "The builder must be built to be used"]
1343pub struct AppChooserButtonBuilder {
1344    builder: glib::object::ObjectBuilder<'static, AppChooserButton>,
1345}
1346
1347impl AppChooserButtonBuilder {
1348    fn new() -> Self {
1349        Self {
1350            builder: glib::object::Object::builder(),
1351        }
1352    }
1353
1354    /// The text to show at the top of the dialog that can be
1355    /// opened from the button. The string may contain Pango markup.
1356    pub fn heading(self, heading: impl Into<glib::GString>) -> Self {
1357        Self {
1358            builder: self.builder.property("heading", heading.into()),
1359        }
1360    }
1361
1362    /// The [`show-default-item`][struct@crate::AppChooserButton#show-default-item] property determines
1363    /// whether the dropdown menu should show the default application
1364    /// on top for the provided content type.
1365    pub fn show_default_item(self, show_default_item: bool) -> Self {
1366        Self {
1367            builder: self
1368                .builder
1369                .property("show-default-item", show_default_item),
1370        }
1371    }
1372
1373    /// The [`show-dialog-item`][struct@crate::AppChooserButton#show-dialog-item] property determines
1374    /// whether the dropdown menu should show an item that triggers
1375    /// a [`AppChooserDialog`][crate::AppChooserDialog] when clicked.
1376    pub fn show_dialog_item(self, show_dialog_item: bool) -> Self {
1377        Self {
1378            builder: self.builder.property("show-dialog-item", show_dialog_item),
1379        }
1380    }
1381
1382    /// The item which is currently active. If the model is a non-flat treemodel,
1383    /// and the active item is not an immediate child of the root of the tree,
1384    /// this property has the value
1385    /// `gtk_tree_path_get_indices (path)[0]`,
1386    /// where `path` is the [`TreePath`][crate::TreePath] of the active item.
1387    pub fn active(self, active: i32) -> Self {
1388        Self {
1389            builder: self.builder.property("active", active),
1390        }
1391    }
1392
1393    /// The value of the ID column of the active row.
1394    pub fn active_id(self, active_id: impl Into<glib::GString>) -> Self {
1395        Self {
1396            builder: self.builder.property("active-id", active_id.into()),
1397        }
1398    }
1399
1400    /// Whether the dropdown button is sensitive when
1401    /// the model is empty.
1402    pub fn button_sensitivity(self, button_sensitivity: SensitivityType) -> Self {
1403        Self {
1404            builder: self
1405                .builder
1406                .property("button-sensitivity", button_sensitivity),
1407        }
1408    }
1409
1410    /// The [`CellArea`][crate::CellArea] used to layout cell renderers for this combo box.
1411    ///
1412    /// If no area is specified when creating the combo box with [`ComboBox::with_area()`][crate::ComboBox::with_area()]
1413    /// a horizontally oriented [`CellAreaBox`][crate::CellAreaBox] will be used.
1414    pub fn cell_area(self, cell_area: &impl IsA<CellArea>) -> Self {
1415        Self {
1416            builder: self
1417                .builder
1418                .property("cell-area", cell_area.clone().upcast()),
1419        }
1420    }
1421
1422    /// If this is set to a non-negative value, it must be the index of a column
1423    /// of type `G_TYPE_INT` in the model. The value in that column for each item
1424    /// will determine how many columns that item will span in the popup.
1425    /// Therefore, values in this column must be greater than zero, and the sum of
1426    /// an item’s column position + span should not exceed [`wrap-width`][struct@crate::ComboBox#wrap-width].
1427    pub fn column_span_column(self, column_span_column: i32) -> Self {
1428        Self {
1429            builder: self
1430                .builder
1431                .property("column-span-column", column_span_column),
1432        }
1433    }
1434
1435    /// The column in the combo box's model to associate with strings from the entry
1436    /// if the combo was created with [`has-entry`][struct@crate::ComboBox#has-entry] = [`true`].
1437    pub fn entry_text_column(self, entry_text_column: i32) -> Self {
1438        Self {
1439            builder: self
1440                .builder
1441                .property("entry-text-column", entry_text_column),
1442        }
1443    }
1444
1445    /// Whether the combo box has an entry.
1446    pub fn has_entry(self, has_entry: bool) -> Self {
1447        Self {
1448            builder: self.builder.property("has-entry", has_entry),
1449        }
1450    }
1451
1452    /// The has-frame property controls whether a frame
1453    /// is drawn around the entry.
1454    pub fn has_frame(self, has_frame: bool) -> Self {
1455        Self {
1456            builder: self.builder.property("has-frame", has_frame),
1457        }
1458    }
1459
1460    /// The column in the combo box's model that provides string
1461    /// IDs for the values in the model, if != -1.
1462    pub fn id_column(self, id_column: i32) -> Self {
1463        Self {
1464            builder: self.builder.property("id-column", id_column),
1465        }
1466    }
1467
1468    /// The model from which the combo box takes the values shown
1469    /// in the list.
1470    pub fn model(self, model: &impl IsA<TreeModel>) -> Self {
1471        Self {
1472            builder: self.builder.property("model", model.clone().upcast()),
1473        }
1474    }
1475
1476    /// Whether the popup's width should be a fixed width matching the
1477    /// allocated width of the combo box.
1478    pub fn popup_fixed_width(self, popup_fixed_width: bool) -> Self {
1479        Self {
1480            builder: self
1481                .builder
1482                .property("popup-fixed-width", popup_fixed_width),
1483        }
1484    }
1485
1486    /// If this is set to a non-negative value, it must be the index of a column
1487    /// of type `G_TYPE_INT` in the model. The value in that column for each item
1488    /// will determine how many rows that item will span in the popup. Therefore,
1489    /// values in this column must be greater than zero.
1490    pub fn row_span_column(self, row_span_column: i32) -> Self {
1491        Self {
1492            builder: self.builder.property("row-span-column", row_span_column),
1493        }
1494    }
1495
1496    /// If wrap-width is set to a positive value, items in the popup will be laid
1497    /// out along multiple columns, starting a new row on reaching the wrap width.
1498    pub fn wrap_width(self, wrap_width: i32) -> Self {
1499        Self {
1500            builder: self.builder.property("wrap-width", wrap_width),
1501        }
1502    }
1503
1504    pub fn border_width(self, border_width: u32) -> Self {
1505        Self {
1506            builder: self.builder.property("border-width", border_width),
1507        }
1508    }
1509
1510    pub fn child(self, child: &impl IsA<Widget>) -> Self {
1511        Self {
1512            builder: self.builder.property("child", child.clone().upcast()),
1513        }
1514    }
1515
1516    pub fn resize_mode(self, resize_mode: ResizeMode) -> Self {
1517        Self {
1518            builder: self.builder.property("resize-mode", resize_mode),
1519        }
1520    }
1521
1522    pub fn app_paintable(self, app_paintable: bool) -> Self {
1523        Self {
1524            builder: self.builder.property("app-paintable", app_paintable),
1525        }
1526    }
1527
1528    pub fn can_default(self, can_default: bool) -> Self {
1529        Self {
1530            builder: self.builder.property("can-default", can_default),
1531        }
1532    }
1533
1534    pub fn can_focus(self, can_focus: bool) -> Self {
1535        Self {
1536            builder: self.builder.property("can-focus", can_focus),
1537        }
1538    }
1539
1540    pub fn events(self, events: gdk::EventMask) -> Self {
1541        Self {
1542            builder: self.builder.property("events", events),
1543        }
1544    }
1545
1546    /// Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::Widget#hexpand] and [`vexpand`][struct@crate::Widget#vexpand]
1547    pub fn expand(self, expand: bool) -> Self {
1548        Self {
1549            builder: self.builder.property("expand", expand),
1550        }
1551    }
1552
1553    /// Whether the widget should grab focus when it is clicked with the mouse.
1554    ///
1555    /// This property is only relevant for widgets that can take focus.
1556    ///
1557    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
1558    /// GtkComboBox) implemented this property individually.
1559    pub fn focus_on_click(self, focus_on_click: bool) -> Self {
1560        Self {
1561            builder: self.builder.property("focus-on-click", focus_on_click),
1562        }
1563    }
1564
1565    /// How to distribute horizontal space if widget gets extra space, see [`Align`][crate::Align]
1566    pub fn halign(self, halign: Align) -> Self {
1567        Self {
1568            builder: self.builder.property("halign", halign),
1569        }
1570    }
1571
1572    pub fn has_default(self, has_default: bool) -> Self {
1573        Self {
1574            builder: self.builder.property("has-default", has_default),
1575        }
1576    }
1577
1578    pub fn has_focus(self, has_focus: bool) -> Self {
1579        Self {
1580            builder: self.builder.property("has-focus", has_focus),
1581        }
1582    }
1583
1584    /// Enables or disables the emission of [`query-tooltip`][struct@crate::Widget#query-tooltip] on `widget`.
1585    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
1586    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to determine
1587    /// whether it will provide a tooltip or not.
1588    ///
1589    /// Note that setting this property to [`true`] for the first time will change
1590    /// the event masks of the GdkWindows of this widget to include leave-notify
1591    /// and motion-notify events. This cannot and will not be undone when the
1592    /// property is set to [`false`] again.
1593    pub fn has_tooltip(self, has_tooltip: bool) -> Self {
1594        Self {
1595            builder: self.builder.property("has-tooltip", has_tooltip),
1596        }
1597    }
1598
1599    pub fn height_request(self, height_request: i32) -> Self {
1600        Self {
1601            builder: self.builder.property("height-request", height_request),
1602        }
1603    }
1604
1605    /// Whether to expand horizontally. See [`WidgetExt::set_hexpand()`][crate::prelude::WidgetExt::set_hexpand()].
1606    pub fn hexpand(self, hexpand: bool) -> Self {
1607        Self {
1608            builder: self.builder.property("hexpand", hexpand),
1609        }
1610    }
1611
1612    /// Whether to use the [`hexpand`][struct@crate::Widget#hexpand] property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
1613    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
1614        Self {
1615            builder: self.builder.property("hexpand-set", hexpand_set),
1616        }
1617    }
1618
1619    pub fn is_focus(self, is_focus: bool) -> Self {
1620        Self {
1621            builder: self.builder.property("is-focus", is_focus),
1622        }
1623    }
1624
1625    /// Sets all four sides' margin at once. If read, returns max
1626    /// margin on any side.
1627    pub fn margin(self, margin: i32) -> Self {
1628        Self {
1629            builder: self.builder.property("margin", margin),
1630        }
1631    }
1632
1633    /// Margin on bottom side of widget.
1634    ///
1635    /// This property adds margin outside of the widget's normal size
1636    /// request, the margin will be added in addition to the size from
1637    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
1638    pub fn margin_bottom(self, margin_bottom: i32) -> Self {
1639        Self {
1640            builder: self.builder.property("margin-bottom", margin_bottom),
1641        }
1642    }
1643
1644    /// Margin on end of widget, horizontally. This property supports
1645    /// left-to-right and right-to-left text directions.
1646    ///
1647    /// This property adds margin outside of the widget's normal size
1648    /// request, the margin will be added in addition to the size from
1649    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
1650    pub fn margin_end(self, margin_end: i32) -> Self {
1651        Self {
1652            builder: self.builder.property("margin-end", margin_end),
1653        }
1654    }
1655
1656    /// Margin on start of widget, horizontally. This property supports
1657    /// left-to-right and right-to-left text directions.
1658    ///
1659    /// This property adds margin outside of the widget's normal size
1660    /// request, the margin will be added in addition to the size from
1661    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
1662    pub fn margin_start(self, margin_start: i32) -> Self {
1663        Self {
1664            builder: self.builder.property("margin-start", margin_start),
1665        }
1666    }
1667
1668    /// Margin on top side of widget.
1669    ///
1670    /// This property adds margin outside of the widget's normal size
1671    /// request, the margin will be added in addition to the size from
1672    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
1673    pub fn margin_top(self, margin_top: i32) -> Self {
1674        Self {
1675            builder: self.builder.property("margin-top", margin_top),
1676        }
1677    }
1678
1679    pub fn name(self, name: impl Into<glib::GString>) -> Self {
1680        Self {
1681            builder: self.builder.property("name", name.into()),
1682        }
1683    }
1684
1685    pub fn no_show_all(self, no_show_all: bool) -> Self {
1686        Self {
1687            builder: self.builder.property("no-show-all", no_show_all),
1688        }
1689    }
1690
1691    /// The requested opacity of the widget. See [`WidgetExt::set_opacity()`][crate::prelude::WidgetExt::set_opacity()] for
1692    /// more details about window opacity.
1693    ///
1694    /// Before 3.8 this was only available in GtkWindow
1695    pub fn opacity(self, opacity: f64) -> Self {
1696        Self {
1697            builder: self.builder.property("opacity", opacity),
1698        }
1699    }
1700
1701    pub fn parent(self, parent: &impl IsA<Container>) -> Self {
1702        Self {
1703            builder: self.builder.property("parent", parent.clone().upcast()),
1704        }
1705    }
1706
1707    pub fn receives_default(self, receives_default: bool) -> Self {
1708        Self {
1709            builder: self.builder.property("receives-default", receives_default),
1710        }
1711    }
1712
1713    pub fn sensitive(self, sensitive: bool) -> Self {
1714        Self {
1715            builder: self.builder.property("sensitive", sensitive),
1716        }
1717    }
1718
1719    /// Sets the text of tooltip to be the given string, which is marked up
1720    /// with the [Pango text markup language][PangoMarkupFormat].
1721    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
1722    ///
1723    /// This is a convenience property which will take care of getting the
1724    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
1725    /// will automatically be set to [`true`] and there will be taken care of
1726    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
1727    ///
1728    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
1729    /// are set, the last one wins.
1730    pub fn tooltip_markup(self, tooltip_markup: impl Into<glib::GString>) -> Self {
1731        Self {
1732            builder: self
1733                .builder
1734                .property("tooltip-markup", tooltip_markup.into()),
1735        }
1736    }
1737
1738    /// Sets the text of tooltip to be the given string.
1739    ///
1740    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
1741    ///
1742    /// This is a convenience property which will take care of getting the
1743    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
1744    /// will automatically be set to [`true`] and there will be taken care of
1745    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
1746    ///
1747    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
1748    /// are set, the last one wins.
1749    pub fn tooltip_text(self, tooltip_text: impl Into<glib::GString>) -> Self {
1750        Self {
1751            builder: self.builder.property("tooltip-text", tooltip_text.into()),
1752        }
1753    }
1754
1755    /// How to distribute vertical space if widget gets extra space, see [`Align`][crate::Align]
1756    pub fn valign(self, valign: Align) -> Self {
1757        Self {
1758            builder: self.builder.property("valign", valign),
1759        }
1760    }
1761
1762    /// Whether to expand vertically. See [`WidgetExt::set_vexpand()`][crate::prelude::WidgetExt::set_vexpand()].
1763    pub fn vexpand(self, vexpand: bool) -> Self {
1764        Self {
1765            builder: self.builder.property("vexpand", vexpand),
1766        }
1767    }
1768
1769    /// Whether to use the [`vexpand`][struct@crate::Widget#vexpand] property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
1770    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
1771        Self {
1772            builder: self.builder.property("vexpand-set", vexpand_set),
1773        }
1774    }
1775
1776    pub fn visible(self, visible: bool) -> Self {
1777        Self {
1778            builder: self.builder.property("visible", visible),
1779        }
1780    }
1781
1782    pub fn width_request(self, width_request: i32) -> Self {
1783        Self {
1784            builder: self.builder.property("width-request", width_request),
1785        }
1786    }
1787
1788    /// Indicates whether editing on the cell has been canceled.
1789    pub fn editing_canceled(self, editing_canceled: bool) -> Self {
1790        Self {
1791            builder: self.builder.property("editing-canceled", editing_canceled),
1792        }
1793    }
1794
1795    /// The content type of the [`AppChooser`][crate::AppChooser] object.
1796    ///
1797    /// See [GContentType][gio-GContentType]
1798    /// for more information about content types.
1799    pub fn content_type(self, content_type: impl Into<glib::GString>) -> Self {
1800        Self {
1801            builder: self.builder.property("content-type", content_type.into()),
1802        }
1803    }
1804
1805    // rustdoc-stripper-ignore-next
1806    /// Build the [`AppChooserButton`].
1807    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
1808    pub fn build(self) -> AppChooserButton {
1809        assert_initialized_main_thread!();
1810        self.builder.build()
1811    }
1812}
1813
1814/// Trait containing all [`struct@AppChooserButton`] methods.
1815///
1816/// # Implementors
1817///
1818/// [`AppChooserButton`][struct@crate::AppChooserButton]
1819pub trait AppChooserButtonExt: IsA<AppChooserButton> + 'static {
1820    /// Appends a custom item to the list of applications that is shown
1821    /// in the popup; the item name must be unique per-widget.
1822    /// Clients can use the provided name as a detail for the
1823    /// [`custom-item-activated`][struct@crate::AppChooserButton#custom-item-activated] signal, to add a
1824    /// callback for the activation of a particular custom item in the list.
1825    /// See also [`append_separator()`][Self::append_separator()].
1826    /// ## `name`
1827    /// the name of the custom item
1828    /// ## `label`
1829    /// the label for the custom item
1830    /// ## `icon`
1831    /// the icon for the custom item
1832    #[doc(alias = "gtk_app_chooser_button_append_custom_item")]
1833    fn append_custom_item(&self, name: &str, label: &str, icon: &impl IsA<gio::Icon>) {
1834        unsafe {
1835            ffi::gtk_app_chooser_button_append_custom_item(
1836                self.as_ref().to_glib_none().0,
1837                name.to_glib_none().0,
1838                label.to_glib_none().0,
1839                icon.as_ref().to_glib_none().0,
1840            );
1841        }
1842    }
1843
1844    /// Appends a separator to the list of applications that is shown
1845    /// in the popup.
1846    #[doc(alias = "gtk_app_chooser_button_append_separator")]
1847    fn append_separator(&self) {
1848        unsafe {
1849            ffi::gtk_app_chooser_button_append_separator(self.as_ref().to_glib_none().0);
1850        }
1851    }
1852
1853    /// Returns the text to display at the top of the dialog.
1854    ///
1855    /// # Returns
1856    ///
1857    /// the text to display at the top of the dialog,
1858    ///  or [`None`], in which case a default text is displayed
1859    #[doc(alias = "gtk_app_chooser_button_get_heading")]
1860    #[doc(alias = "get_heading")]
1861    fn heading(&self) -> Option<glib::GString> {
1862        unsafe {
1863            from_glib_none(ffi::gtk_app_chooser_button_get_heading(
1864                self.as_ref().to_glib_none().0,
1865            ))
1866        }
1867    }
1868
1869    /// Returns the current value of the [`show-default-item`][struct@crate::AppChooserButton#show-default-item]
1870    /// property.
1871    ///
1872    /// # Returns
1873    ///
1874    /// the value of [`show-default-item`][struct@crate::AppChooserButton#show-default-item]
1875    #[doc(alias = "gtk_app_chooser_button_get_show_default_item")]
1876    #[doc(alias = "get_show_default_item")]
1877    #[doc(alias = "show-default-item")]
1878    fn shows_default_item(&self) -> bool {
1879        unsafe {
1880            from_glib(ffi::gtk_app_chooser_button_get_show_default_item(
1881                self.as_ref().to_glib_none().0,
1882            ))
1883        }
1884    }
1885
1886    /// Returns the current value of the [`show-dialog-item`][struct@crate::AppChooserButton#show-dialog-item]
1887    /// property.
1888    ///
1889    /// # Returns
1890    ///
1891    /// the value of [`show-dialog-item`][struct@crate::AppChooserButton#show-dialog-item]
1892    #[doc(alias = "gtk_app_chooser_button_get_show_dialog_item")]
1893    #[doc(alias = "get_show_dialog_item")]
1894    #[doc(alias = "show-dialog-item")]
1895    fn shows_dialog_item(&self) -> bool {
1896        unsafe {
1897            from_glib(ffi::gtk_app_chooser_button_get_show_dialog_item(
1898                self.as_ref().to_glib_none().0,
1899            ))
1900        }
1901    }
1902
1903    /// Selects a custom item previously added with
1904    /// [`append_custom_item()`][Self::append_custom_item()].
1905    ///
1906    /// Use [`AppChooserExtManual::refresh()`][crate::prelude::AppChooserExtManual::refresh()] to bring the selection
1907    /// to its initial state.
1908    /// ## `name`
1909    /// the name of the custom item
1910    #[doc(alias = "gtk_app_chooser_button_set_active_custom_item")]
1911    fn set_active_custom_item(&self, name: &str) {
1912        unsafe {
1913            ffi::gtk_app_chooser_button_set_active_custom_item(
1914                self.as_ref().to_glib_none().0,
1915                name.to_glib_none().0,
1916            );
1917        }
1918    }
1919
1920    /// Sets the text to display at the top of the dialog.
1921    /// If the heading is not set, the dialog displays a default text.
1922    /// ## `heading`
1923    /// a string containing Pango markup
1924    #[doc(alias = "gtk_app_chooser_button_set_heading")]
1925    #[doc(alias = "heading")]
1926    fn set_heading(&self, heading: &str) {
1927        unsafe {
1928            ffi::gtk_app_chooser_button_set_heading(
1929                self.as_ref().to_glib_none().0,
1930                heading.to_glib_none().0,
1931            );
1932        }
1933    }
1934
1935    /// Sets whether the dropdown menu of this button should show the
1936    /// default application for the given content type at top.
1937    /// ## `setting`
1938    /// the new value for [`show-default-item`][struct@crate::AppChooserButton#show-default-item]
1939    #[doc(alias = "gtk_app_chooser_button_set_show_default_item")]
1940    #[doc(alias = "show-default-item")]
1941    fn set_show_default_item(&self, setting: bool) {
1942        unsafe {
1943            ffi::gtk_app_chooser_button_set_show_default_item(
1944                self.as_ref().to_glib_none().0,
1945                setting.into_glib(),
1946            );
1947        }
1948    }
1949
1950    /// Sets whether the dropdown menu of this button should show an
1951    /// entry to trigger a [`AppChooserDialog`][crate::AppChooserDialog].
1952    /// ## `setting`
1953    /// the new value for [`show-dialog-item`][struct@crate::AppChooserButton#show-dialog-item]
1954    #[doc(alias = "gtk_app_chooser_button_set_show_dialog_item")]
1955    #[doc(alias = "show-dialog-item")]
1956    fn set_show_dialog_item(&self, setting: bool) {
1957        unsafe {
1958            ffi::gtk_app_chooser_button_set_show_dialog_item(
1959                self.as_ref().to_glib_none().0,
1960                setting.into_glib(),
1961            );
1962        }
1963    }
1964
1965    /// Emitted when a custom item, previously added with
1966    /// [`append_custom_item()`][Self::append_custom_item()], is activated from the
1967    /// dropdown menu.
1968    /// ## `item_name`
1969    /// the name of the activated item
1970    #[doc(alias = "custom-item-activated")]
1971    fn connect_custom_item_activated<F: Fn(&Self, &str) + 'static>(
1972        &self,
1973        detail: Option<&str>,
1974        f: F,
1975    ) -> SignalHandlerId {
1976        unsafe extern "C" fn custom_item_activated_trampoline<
1977            P: IsA<AppChooserButton>,
1978            F: Fn(&P, &str) + 'static,
1979        >(
1980            this: *mut ffi::GtkAppChooserButton,
1981            item_name: *mut std::ffi::c_char,
1982            f: glib::ffi::gpointer,
1983        ) {
1984            unsafe {
1985                let f: &F = &*(f as *const F);
1986                f(
1987                    AppChooserButton::from_glib_borrow(this).unsafe_cast_ref(),
1988                    &glib::GString::from_glib_borrow(item_name),
1989                )
1990            }
1991        }
1992        unsafe {
1993            let f: Box_<F> = Box_::new(f);
1994            let detailed_signal_name =
1995                detail.map(|name| format!("custom-item-activated::{name}\0"));
1996            let signal_name = detailed_signal_name
1997                .as_ref()
1998                .map_or(c"custom-item-activated", |n| {
1999                    std::ffi::CStr::from_bytes_with_nul_unchecked(n.as_bytes())
2000                });
2001            connect_raw(
2002                self.as_ptr() as *mut _,
2003                signal_name.as_ptr(),
2004                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
2005                    custom_item_activated_trampoline::<Self, F> as *const (),
2006                )),
2007                Box_::into_raw(f),
2008            )
2009        }
2010    }
2011
2012    #[doc(alias = "heading")]
2013    fn connect_heading_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
2014        unsafe extern "C" fn notify_heading_trampoline<
2015            P: IsA<AppChooserButton>,
2016            F: Fn(&P) + 'static,
2017        >(
2018            this: *mut ffi::GtkAppChooserButton,
2019            _param_spec: glib::ffi::gpointer,
2020            f: glib::ffi::gpointer,
2021        ) {
2022            unsafe {
2023                let f: &F = &*(f as *const F);
2024                f(AppChooserButton::from_glib_borrow(this).unsafe_cast_ref())
2025            }
2026        }
2027        unsafe {
2028            let f: Box_<F> = Box_::new(f);
2029            connect_raw(
2030                self.as_ptr() as *mut _,
2031                c"notify::heading".as_ptr(),
2032                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
2033                    notify_heading_trampoline::<Self, F> as *const (),
2034                )),
2035                Box_::into_raw(f),
2036            )
2037        }
2038    }
2039
2040    #[doc(alias = "show-default-item")]
2041    fn connect_show_default_item_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
2042        unsafe extern "C" fn notify_show_default_item_trampoline<
2043            P: IsA<AppChooserButton>,
2044            F: Fn(&P) + 'static,
2045        >(
2046            this: *mut ffi::GtkAppChooserButton,
2047            _param_spec: glib::ffi::gpointer,
2048            f: glib::ffi::gpointer,
2049        ) {
2050            unsafe {
2051                let f: &F = &*(f as *const F);
2052                f(AppChooserButton::from_glib_borrow(this).unsafe_cast_ref())
2053            }
2054        }
2055        unsafe {
2056            let f: Box_<F> = Box_::new(f);
2057            connect_raw(
2058                self.as_ptr() as *mut _,
2059                c"notify::show-default-item".as_ptr(),
2060                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
2061                    notify_show_default_item_trampoline::<Self, F> as *const (),
2062                )),
2063                Box_::into_raw(f),
2064            )
2065        }
2066    }
2067
2068    #[doc(alias = "show-dialog-item")]
2069    fn connect_show_dialog_item_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
2070        unsafe extern "C" fn notify_show_dialog_item_trampoline<
2071            P: IsA<AppChooserButton>,
2072            F: Fn(&P) + 'static,
2073        >(
2074            this: *mut ffi::GtkAppChooserButton,
2075            _param_spec: glib::ffi::gpointer,
2076            f: glib::ffi::gpointer,
2077        ) {
2078            unsafe {
2079                let f: &F = &*(f as *const F);
2080                f(AppChooserButton::from_glib_borrow(this).unsafe_cast_ref())
2081            }
2082        }
2083        unsafe {
2084            let f: Box_<F> = Box_::new(f);
2085            connect_raw(
2086                self.as_ptr() as *mut _,
2087                c"notify::show-dialog-item".as_ptr(),
2088                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
2089                    notify_show_dialog_item_trampoline::<Self, F> as *const (),
2090                )),
2091                Box_::into_raw(f),
2092            )
2093        }
2094    }
2095}
2096
2097impl<O: IsA<AppChooserButton>> AppChooserButtonExt for O {}