objc2_ui_kit/generated/
UICollectionView.rs

1//! This file has been automatically generated by `objc2`'s `header-translator`.
2//! DO NOT EDIT
3use core::ffi::*;
4use core::ptr::NonNull;
5use objc2::__framework_prelude::*;
6#[cfg(feature = "objc2-core-foundation")]
7use objc2_core_foundation::*;
8use objc2_foundation::*;
9#[cfg(feature = "objc2-quartz-core")]
10#[cfg(not(target_os = "watchos"))]
11use objc2_quartz_core::*;
12
13use crate::*;
14
15/// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewscrollposition?language=objc)
16// NS_OPTIONS
17#[repr(transparent)]
18#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
19pub struct UICollectionViewScrollPosition(pub NSUInteger);
20bitflags::bitflags! {
21    impl UICollectionViewScrollPosition: NSUInteger {
22        #[doc(alias = "UICollectionViewScrollPositionNone")]
23        const None = 0;
24        #[doc(alias = "UICollectionViewScrollPositionTop")]
25        const Top = 1<<0;
26        #[doc(alias = "UICollectionViewScrollPositionCenteredVertically")]
27        const CenteredVertically = 1<<1;
28        #[doc(alias = "UICollectionViewScrollPositionBottom")]
29        const Bottom = 1<<2;
30        #[doc(alias = "UICollectionViewScrollPositionLeft")]
31        const Left = 1<<3;
32        #[doc(alias = "UICollectionViewScrollPositionCenteredHorizontally")]
33        const CenteredHorizontally = 1<<4;
34        #[doc(alias = "UICollectionViewScrollPositionRight")]
35        const Right = 1<<5;
36    }
37}
38
39unsafe impl Encode for UICollectionViewScrollPosition {
40    const ENCODING: Encoding = NSUInteger::ENCODING;
41}
42
43unsafe impl RefEncode for UICollectionViewScrollPosition {
44    const ENCODING_REF: Encoding = Encoding::Pointer(&Self::ENCODING);
45}
46
47/// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewreorderingcadence?language=objc)
48// NS_ENUM
49#[repr(transparent)]
50#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
51pub struct UICollectionViewReorderingCadence(pub NSInteger);
52impl UICollectionViewReorderingCadence {
53    #[doc(alias = "UICollectionViewReorderingCadenceImmediate")]
54    pub const Immediate: Self = Self(0);
55    #[doc(alias = "UICollectionViewReorderingCadenceFast")]
56    pub const Fast: Self = Self(1);
57    #[doc(alias = "UICollectionViewReorderingCadenceSlow")]
58    pub const Slow: Self = Self(2);
59}
60
61unsafe impl Encode for UICollectionViewReorderingCadence {
62    const ENCODING: Encoding = NSInteger::ENCODING;
63}
64
65unsafe impl RefEncode for UICollectionViewReorderingCadence {
66    const ENCODING_REF: Encoding = Encoding::Pointer(&Self::ENCODING);
67}
68
69/// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewselfsizinginvalidation?language=objc)
70// NS_ENUM
71#[repr(transparent)]
72#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
73pub struct UICollectionViewSelfSizingInvalidation(pub NSInteger);
74impl UICollectionViewSelfSizingInvalidation {
75    /// No updates will take place when -invalidateIntrinsicContentSize is called on a self-sizing cell or its contentView.
76    #[doc(alias = "UICollectionViewSelfSizingInvalidationDisabled")]
77    pub const Disabled: Self = Self(0);
78    /// Calling -invalidateIntrinsicContentSize on a self-sizing cell or its contentView will cause it to be resized if necessary.
79    #[doc(alias = "UICollectionViewSelfSizingInvalidationEnabled")]
80    pub const Enabled: Self = Self(1);
81    /// Calling -invalidateIntrinsicContentSize on a self-sizing cell or its contentView will cause it to be resized if necessary, and
82    /// any Auto Layout changes within the contentView of a self-sizing cell will automatically trigger -invalidateIntrinsicContentSize.
83    #[doc(alias = "UICollectionViewSelfSizingInvalidationEnabledIncludingConstraints")]
84    pub const EnabledIncludingConstraints: Self = Self(2);
85}
86
87unsafe impl Encode for UICollectionViewSelfSizingInvalidation {
88    const ENCODING: Encoding = NSInteger::ENCODING;
89}
90
91unsafe impl RefEncode for UICollectionViewSelfSizingInvalidation {
92    const ENCODING_REF: Encoding = Encoding::Pointer(&Self::ENCODING);
93}
94
95/// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewlayoutinteractivetransitioncompletion?language=objc)
96#[cfg(feature = "block2")]
97pub type UICollectionViewLayoutInteractiveTransitionCompletion =
98    *mut block2::Block<dyn Fn(Bool, Bool)>;
99
100extern_class!(
101    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewfocusupdatecontext?language=objc)
102    #[unsafe(super(UIFocusUpdateContext, NSObject))]
103    #[thread_kind = MainThreadOnly]
104    #[derive(Debug, PartialEq, Eq, Hash)]
105    #[cfg(feature = "UIFocus")]
106    pub struct UICollectionViewFocusUpdateContext;
107);
108
109#[cfg(feature = "UIFocus")]
110unsafe impl NSObjectProtocol for UICollectionViewFocusUpdateContext {}
111
112#[cfg(feature = "UIFocus")]
113impl UICollectionViewFocusUpdateContext {
114    extern_methods!(
115        #[unsafe(method(previouslyFocusedIndexPath))]
116        #[unsafe(method_family = none)]
117        pub unsafe fn previouslyFocusedIndexPath(&self) -> Option<Retained<NSIndexPath>>;
118
119        #[unsafe(method(nextFocusedIndexPath))]
120        #[unsafe(method_family = none)]
121        pub unsafe fn nextFocusedIndexPath(&self) -> Option<Retained<NSIndexPath>>;
122    );
123}
124
125/// Methods declared on superclass `NSObject`.
126#[cfg(feature = "UIFocus")]
127impl UICollectionViewFocusUpdateContext {
128    extern_methods!(
129        #[unsafe(method(init))]
130        #[unsafe(method_family = init)]
131        pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>;
132
133        #[unsafe(method(new))]
134        #[unsafe(method_family = new)]
135        pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>;
136    );
137}
138
139extern_protocol!(
140    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdatasource?language=objc)
141    pub unsafe trait UICollectionViewDataSource: NSObjectProtocol + MainThreadOnly {
142        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
143        #[unsafe(method(collectionView:numberOfItemsInSection:))]
144        #[unsafe(method_family = none)]
145        unsafe fn collectionView_numberOfItemsInSection(
146            &self,
147            collection_view: &UICollectionView,
148            section: NSInteger,
149        ) -> NSInteger;
150
151        #[cfg(all(
152            feature = "UICollectionViewCell",
153            feature = "UIResponder",
154            feature = "UIScrollView",
155            feature = "UIView"
156        ))]
157        #[unsafe(method(collectionView:cellForItemAtIndexPath:))]
158        #[unsafe(method_family = none)]
159        unsafe fn collectionView_cellForItemAtIndexPath(
160            &self,
161            collection_view: &UICollectionView,
162            index_path: &NSIndexPath,
163        ) -> Retained<UICollectionViewCell>;
164
165        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
166        #[optional]
167        #[unsafe(method(numberOfSectionsInCollectionView:))]
168        #[unsafe(method_family = none)]
169        unsafe fn numberOfSectionsInCollectionView(
170            &self,
171            collection_view: &UICollectionView,
172        ) -> NSInteger;
173
174        #[cfg(all(
175            feature = "UICollectionViewCell",
176            feature = "UIResponder",
177            feature = "UIScrollView",
178            feature = "UIView"
179        ))]
180        #[optional]
181        #[unsafe(method(collectionView:viewForSupplementaryElementOfKind:atIndexPath:))]
182        #[unsafe(method_family = none)]
183        unsafe fn collectionView_viewForSupplementaryElementOfKind_atIndexPath(
184            &self,
185            collection_view: &UICollectionView,
186            kind: &NSString,
187            index_path: &NSIndexPath,
188        ) -> Retained<UICollectionReusableView>;
189
190        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
191        #[optional]
192        #[unsafe(method(collectionView:canMoveItemAtIndexPath:))]
193        #[unsafe(method_family = none)]
194        unsafe fn collectionView_canMoveItemAtIndexPath(
195            &self,
196            collection_view: &UICollectionView,
197            index_path: &NSIndexPath,
198        ) -> bool;
199
200        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
201        #[optional]
202        #[unsafe(method(collectionView:moveItemAtIndexPath:toIndexPath:))]
203        #[unsafe(method_family = none)]
204        unsafe fn collectionView_moveItemAtIndexPath_toIndexPath(
205            &self,
206            collection_view: &UICollectionView,
207            source_index_path: &NSIndexPath,
208            destination_index_path: &NSIndexPath,
209        );
210
211        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
212        /// Returns a list of index titles to display in the index view (e.g. ["A", "B", "C" ... "Z", "#"])
213        #[optional]
214        #[unsafe(method(indexTitlesForCollectionView:))]
215        #[unsafe(method_family = none)]
216        unsafe fn indexTitlesForCollectionView(
217            &self,
218            collection_view: &UICollectionView,
219        ) -> Option<Retained<NSArray<NSString>>>;
220
221        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
222        /// Returns the index path that corresponds to the given title / index. (e.g. "B",1)
223        /// Return an index path with a single index to indicate an entire section, instead of a specific item.
224        #[optional]
225        #[unsafe(method(collectionView:indexPathForIndexTitle:atIndex:))]
226        #[unsafe(method_family = none)]
227        unsafe fn collectionView_indexPathForIndexTitle_atIndex(
228            &self,
229            collection_view: &UICollectionView,
230            title: &NSString,
231            index: NSInteger,
232        ) -> Retained<NSIndexPath>;
233    }
234);
235
236extern_protocol!(
237    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdatasourceprefetching?language=objc)
238    pub unsafe trait UICollectionViewDataSourcePrefetching:
239        NSObjectProtocol + MainThreadOnly
240    {
241        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
242        #[unsafe(method(collectionView:prefetchItemsAtIndexPaths:))]
243        #[unsafe(method_family = none)]
244        unsafe fn collectionView_prefetchItemsAtIndexPaths(
245            &self,
246            collection_view: &UICollectionView,
247            index_paths: &NSArray<NSIndexPath>,
248        );
249
250        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
251        #[optional]
252        #[unsafe(method(collectionView:cancelPrefetchingForItemsAtIndexPaths:))]
253        #[unsafe(method_family = none)]
254        unsafe fn collectionView_cancelPrefetchingForItemsAtIndexPaths(
255            &self,
256            collection_view: &UICollectionView,
257            index_paths: &NSArray<NSIndexPath>,
258        );
259    }
260);
261
262extern_protocol!(
263    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdelegate?language=objc)
264    #[cfg(feature = "UIScrollView")]
265    pub unsafe trait UICollectionViewDelegate:
266        UIScrollViewDelegate + MainThreadOnly
267    {
268        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
269        #[optional]
270        #[unsafe(method(collectionView:shouldHighlightItemAtIndexPath:))]
271        #[unsafe(method_family = none)]
272        unsafe fn collectionView_shouldHighlightItemAtIndexPath(
273            &self,
274            collection_view: &UICollectionView,
275            index_path: &NSIndexPath,
276        ) -> bool;
277
278        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
279        #[optional]
280        #[unsafe(method(collectionView:didHighlightItemAtIndexPath:))]
281        #[unsafe(method_family = none)]
282        unsafe fn collectionView_didHighlightItemAtIndexPath(
283            &self,
284            collection_view: &UICollectionView,
285            index_path: &NSIndexPath,
286        );
287
288        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
289        #[optional]
290        #[unsafe(method(collectionView:didUnhighlightItemAtIndexPath:))]
291        #[unsafe(method_family = none)]
292        unsafe fn collectionView_didUnhighlightItemAtIndexPath(
293            &self,
294            collection_view: &UICollectionView,
295            index_path: &NSIndexPath,
296        );
297
298        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
299        #[optional]
300        #[unsafe(method(collectionView:shouldSelectItemAtIndexPath:))]
301        #[unsafe(method_family = none)]
302        unsafe fn collectionView_shouldSelectItemAtIndexPath(
303            &self,
304            collection_view: &UICollectionView,
305            index_path: &NSIndexPath,
306        ) -> bool;
307
308        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
309        #[optional]
310        #[unsafe(method(collectionView:shouldDeselectItemAtIndexPath:))]
311        #[unsafe(method_family = none)]
312        unsafe fn collectionView_shouldDeselectItemAtIndexPath(
313            &self,
314            collection_view: &UICollectionView,
315            index_path: &NSIndexPath,
316        ) -> bool;
317
318        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
319        #[optional]
320        #[unsafe(method(collectionView:didSelectItemAtIndexPath:))]
321        #[unsafe(method_family = none)]
322        unsafe fn collectionView_didSelectItemAtIndexPath(
323            &self,
324            collection_view: &UICollectionView,
325            index_path: &NSIndexPath,
326        );
327
328        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
329        #[optional]
330        #[unsafe(method(collectionView:didDeselectItemAtIndexPath:))]
331        #[unsafe(method_family = none)]
332        unsafe fn collectionView_didDeselectItemAtIndexPath(
333            &self,
334            collection_view: &UICollectionView,
335            index_path: &NSIndexPath,
336        );
337
338        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
339        /// Called to determine if a primary action can be performed for the item at the given indexPath.
340        /// See
341        /// `collectionView:performPrimaryActionForItemAtIndexPath:`for more details about primary actions.
342        ///
343        ///
344        /// Parameter `collectionView`: This UICollectionView
345        ///
346        /// Parameter `indexPath`: NSIndexPath of the item
347        ///
348        ///
349        /// Returns: `YES` if the primary action can be performed; otherwise `NO`. If not implemented, defaults to `YES` when not editing
350        /// and `NO` when editing.
351        #[optional]
352        #[unsafe(method(collectionView:canPerformPrimaryActionForItemAtIndexPath:))]
353        #[unsafe(method_family = none)]
354        unsafe fn collectionView_canPerformPrimaryActionForItemAtIndexPath(
355            &self,
356            collection_view: &UICollectionView,
357            index_path: &NSIndexPath,
358        ) -> bool;
359
360        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
361        /// Called when the primary action should be performed for the item at the given indexPath.
362        ///
363        ///
364        /// Primary actions allow you to distinguish between a change of selection (which can be based on focus changes or
365        /// other indirect selection changes) and distinct user actions. Primary actions are performed when the user selects a cell without extending
366        /// an existing selection. This is called after
367        /// `shouldSelectItem`and
368        /// `didSelectItem`, regardless of whether the cell's selection
369        /// state was allowed to change.
370        ///
371        /// As an example, use
372        /// `didSelectItemAtIndexPath`for updating state in the current view controller (i.e. buttons, title, etc) and
373        /// use the primary action for navigation or showing another split view column.
374        ///
375        ///
376        /// Parameter `collectionView`: This UICollectionView
377        ///
378        /// Parameter `indexPath`: NSIndexPath of the item to perform the action on
379        #[optional]
380        #[unsafe(method(collectionView:performPrimaryActionForItemAtIndexPath:))]
381        #[unsafe(method_family = none)]
382        unsafe fn collectionView_performPrimaryActionForItemAtIndexPath(
383            &self,
384            collection_view: &UICollectionView,
385            index_path: &NSIndexPath,
386        );
387
388        #[cfg(all(
389            feature = "UICollectionViewCell",
390            feature = "UIResponder",
391            feature = "UIView"
392        ))]
393        #[optional]
394        #[unsafe(method(collectionView:willDisplayCell:forItemAtIndexPath:))]
395        #[unsafe(method_family = none)]
396        unsafe fn collectionView_willDisplayCell_forItemAtIndexPath(
397            &self,
398            collection_view: &UICollectionView,
399            cell: &UICollectionViewCell,
400            index_path: &NSIndexPath,
401        );
402
403        #[cfg(all(
404            feature = "UICollectionViewCell",
405            feature = "UIResponder",
406            feature = "UIView"
407        ))]
408        #[optional]
409        #[unsafe(method(collectionView:willDisplaySupplementaryView:forElementKind:atIndexPath:))]
410        #[unsafe(method_family = none)]
411        unsafe fn collectionView_willDisplaySupplementaryView_forElementKind_atIndexPath(
412            &self,
413            collection_view: &UICollectionView,
414            view: &UICollectionReusableView,
415            element_kind: &NSString,
416            index_path: &NSIndexPath,
417        );
418
419        #[cfg(all(
420            feature = "UICollectionViewCell",
421            feature = "UIResponder",
422            feature = "UIView"
423        ))]
424        #[optional]
425        #[unsafe(method(collectionView:didEndDisplayingCell:forItemAtIndexPath:))]
426        #[unsafe(method_family = none)]
427        unsafe fn collectionView_didEndDisplayingCell_forItemAtIndexPath(
428            &self,
429            collection_view: &UICollectionView,
430            cell: &UICollectionViewCell,
431            index_path: &NSIndexPath,
432        );
433
434        #[cfg(all(
435            feature = "UICollectionViewCell",
436            feature = "UIResponder",
437            feature = "UIView"
438        ))]
439        #[optional]
440        #[unsafe(method(collectionView:didEndDisplayingSupplementaryView:forElementOfKind:atIndexPath:))]
441        #[unsafe(method_family = none)]
442        unsafe fn collectionView_didEndDisplayingSupplementaryView_forElementOfKind_atIndexPath(
443            &self,
444            collection_view: &UICollectionView,
445            view: &UICollectionReusableView,
446            element_kind: &NSString,
447            index_path: &NSIndexPath,
448        );
449
450        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
451        #[deprecated]
452        #[optional]
453        #[unsafe(method(collectionView:shouldShowMenuForItemAtIndexPath:))]
454        #[unsafe(method_family = none)]
455        unsafe fn collectionView_shouldShowMenuForItemAtIndexPath(
456            &self,
457            collection_view: &UICollectionView,
458            index_path: &NSIndexPath,
459        ) -> bool;
460
461        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
462        #[deprecated]
463        #[optional]
464        #[unsafe(method(collectionView:canPerformAction:forItemAtIndexPath:withSender:))]
465        #[unsafe(method_family = none)]
466        unsafe fn collectionView_canPerformAction_forItemAtIndexPath_withSender(
467            &self,
468            collection_view: &UICollectionView,
469            action: Sel,
470            index_path: &NSIndexPath,
471            sender: Option<&AnyObject>,
472        ) -> bool;
473
474        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
475        #[deprecated]
476        #[optional]
477        #[unsafe(method(collectionView:performAction:forItemAtIndexPath:withSender:))]
478        #[unsafe(method_family = none)]
479        unsafe fn collectionView_performAction_forItemAtIndexPath_withSender(
480            &self,
481            collection_view: &UICollectionView,
482            action: Sel,
483            index_path: &NSIndexPath,
484            sender: Option<&AnyObject>,
485        );
486
487        #[cfg(all(
488            feature = "UICollectionViewLayout",
489            feature = "UICollectionViewTransitionLayout",
490            feature = "UIResponder",
491            feature = "UIView"
492        ))]
493        #[optional]
494        #[unsafe(method(collectionView:transitionLayoutForOldLayout:newLayout:))]
495        #[unsafe(method_family = none)]
496        unsafe fn collectionView_transitionLayoutForOldLayout_newLayout(
497            &self,
498            collection_view: &UICollectionView,
499            from_layout: &UICollectionViewLayout,
500            to_layout: &UICollectionViewLayout,
501        ) -> Retained<UICollectionViewTransitionLayout>;
502
503        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
504        #[optional]
505        #[unsafe(method(collectionView:canFocusItemAtIndexPath:))]
506        #[unsafe(method_family = none)]
507        unsafe fn collectionView_canFocusItemAtIndexPath(
508            &self,
509            collection_view: &UICollectionView,
510            index_path: &NSIndexPath,
511        ) -> bool;
512
513        #[cfg(all(feature = "UIFocus", feature = "UIResponder", feature = "UIView"))]
514        #[optional]
515        #[unsafe(method(collectionView:shouldUpdateFocusInContext:))]
516        #[unsafe(method_family = none)]
517        unsafe fn collectionView_shouldUpdateFocusInContext(
518            &self,
519            collection_view: &UICollectionView,
520            context: &UICollectionViewFocusUpdateContext,
521        ) -> bool;
522
523        #[cfg(all(
524            feature = "UIFocus",
525            feature = "UIFocusAnimationCoordinator",
526            feature = "UIResponder",
527            feature = "UIView"
528        ))]
529        #[optional]
530        #[unsafe(method(collectionView:didUpdateFocusInContext:withAnimationCoordinator:))]
531        #[unsafe(method_family = none)]
532        unsafe fn collectionView_didUpdateFocusInContext_withAnimationCoordinator(
533            &self,
534            collection_view: &UICollectionView,
535            context: &UICollectionViewFocusUpdateContext,
536            coordinator: &UIFocusAnimationCoordinator,
537        );
538
539        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
540        #[optional]
541        #[unsafe(method(indexPathForPreferredFocusedViewInCollectionView:))]
542        #[unsafe(method_family = none)]
543        unsafe fn indexPathForPreferredFocusedViewInCollectionView(
544            &self,
545            collection_view: &UICollectionView,
546        ) -> Option<Retained<NSIndexPath>>;
547
548        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
549        /// Determines if the item at the specified index path should also become selected when focus moves to it.
550        /// If the collection view's global selectionFollowsFocus is enabled, this method will allow you to override that behavior on a per-index path basis. This method is not called if selectionFollowsFocus is disabled.
551        #[optional]
552        #[unsafe(method(collectionView:selectionFollowsFocusForItemAtIndexPath:))]
553        #[unsafe(method_family = none)]
554        unsafe fn collectionView_selectionFollowsFocusForItemAtIndexPath(
555            &self,
556            collection_view: &UICollectionView,
557            index_path: &NSIndexPath,
558        ) -> bool;
559
560        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
561        #[optional]
562        #[unsafe(method(collectionView:targetIndexPathForMoveOfItemFromOriginalIndexPath:atCurrentIndexPath:toProposedIndexPath:))]
563        #[unsafe(method_family = none)]
564        unsafe fn collectionView_targetIndexPathForMoveOfItemFromOriginalIndexPath_atCurrentIndexPath_toProposedIndexPath(
565            &self,
566            collection_view: &UICollectionView,
567            original_index_path: &NSIndexPath,
568            current_index_path: &NSIndexPath,
569            proposed_index_path: &NSIndexPath,
570        ) -> Retained<NSIndexPath>;
571
572        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
573        #[deprecated]
574        #[optional]
575        #[unsafe(method(collectionView:targetIndexPathForMoveFromItemAtIndexPath:toProposedIndexPath:))]
576        #[unsafe(method_family = none)]
577        unsafe fn collectionView_targetIndexPathForMoveFromItemAtIndexPath_toProposedIndexPath(
578            &self,
579            collection_view: &UICollectionView,
580            current_index_path: &NSIndexPath,
581            proposed_index_path: &NSIndexPath,
582        ) -> Retained<NSIndexPath>;
583
584        #[cfg(all(
585            feature = "UIResponder",
586            feature = "UIView",
587            feature = "objc2-core-foundation"
588        ))]
589        #[optional]
590        #[unsafe(method(collectionView:targetContentOffsetForProposedContentOffset:))]
591        #[unsafe(method_family = none)]
592        unsafe fn collectionView_targetContentOffsetForProposedContentOffset(
593            &self,
594            collection_view: &UICollectionView,
595            proposed_content_offset: CGPoint,
596        ) -> CGPoint;
597
598        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
599        #[optional]
600        #[unsafe(method(collectionView:canEditItemAtIndexPath:))]
601        #[unsafe(method_family = none)]
602        unsafe fn collectionView_canEditItemAtIndexPath(
603            &self,
604            collection_view: &UICollectionView,
605            index_path: &NSIndexPath,
606        ) -> bool;
607
608        #[cfg(all(
609            feature = "UIResponder",
610            feature = "UISpringLoadedInteraction",
611            feature = "UIView"
612        ))]
613        #[optional]
614        #[unsafe(method(collectionView:shouldSpringLoadItemAtIndexPath:withContext:))]
615        #[unsafe(method_family = none)]
616        unsafe fn collectionView_shouldSpringLoadItemAtIndexPath_withContext(
617            &self,
618            collection_view: &UICollectionView,
619            index_path: &NSIndexPath,
620            context: &ProtocolObject<dyn UISpringLoadedInteractionContext>,
621        ) -> bool;
622
623        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
624        #[optional]
625        #[unsafe(method(collectionView:shouldBeginMultipleSelectionInteractionAtIndexPath:))]
626        #[unsafe(method_family = none)]
627        unsafe fn collectionView_shouldBeginMultipleSelectionInteractionAtIndexPath(
628            &self,
629            collection_view: &UICollectionView,
630            index_path: &NSIndexPath,
631        ) -> bool;
632
633        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
634        #[optional]
635        #[unsafe(method(collectionView:didBeginMultipleSelectionInteractionAtIndexPath:))]
636        #[unsafe(method_family = none)]
637        unsafe fn collectionView_didBeginMultipleSelectionInteractionAtIndexPath(
638            &self,
639            collection_view: &UICollectionView,
640            index_path: &NSIndexPath,
641        );
642
643        #[cfg(all(feature = "UIResponder", feature = "UIView"))]
644        #[optional]
645        #[unsafe(method(collectionViewDidEndMultipleSelectionInteraction:))]
646        #[unsafe(method_family = none)]
647        unsafe fn collectionViewDidEndMultipleSelectionInteraction(
648            &self,
649            collection_view: &UICollectionView,
650        );
651
652        #[cfg(all(
653            feature = "UIContextMenuConfiguration",
654            feature = "UIResponder",
655            feature = "UIView",
656            feature = "objc2-core-foundation"
657        ))]
658        /// Called when a context menu is invoked from this collection view.
659        ///
660        ///
661        /// Parameter `collectionView`: The
662        /// `UICollectionView.`
663        /// Parameter `indexPaths`: An array of index paths on which the menu acts.
664        ///
665        /// Parameter `point`: Touch location in the collection view's coordinate space.
666        ///
667        ///
668        /// Returns: A
669        /// `UIContextMenuConfiguration`describing the menu to be presented. Return nil to prevent the interaction from beginning.
670        /// Returning an empty configuration causes the interaction to begin then fail with a cancellation effect. You might use this
671        /// to indicate to users that it's possible for a menu to be presented from this element, but that there are no actions to
672        /// present at this particular time.
673        ///
674        ///
675        /// The
676        /// `indexPaths`array may contain 0-many items:
677        /// - An empty array indicates that the menu was invoked in the space between cells (or any location that does not map to an item index path).
678        /// - An array with multiple index paths indicates that the menu was invoked on an item within a multiple selection.
679        #[optional]
680        #[unsafe(method(collectionView:contextMenuConfigurationForItemsAtIndexPaths:point:))]
681        #[unsafe(method_family = none)]
682        unsafe fn collectionView_contextMenuConfigurationForItemsAtIndexPaths_point(
683            &self,
684            collection_view: &UICollectionView,
685            index_paths: &NSArray<NSIndexPath>,
686            point: CGPoint,
687        ) -> Option<Retained<UIContextMenuConfiguration>>;
688
689        #[cfg(all(
690            feature = "UIContextMenuConfiguration",
691            feature = "UIResponder",
692            feature = "UITargetedPreview",
693            feature = "UIView"
694        ))]
695        /// Called when a context menu interaction begins in this collection view to request a preview for the interaction's initial highlight effect.
696        /// Return a
697        /// `UITargetedPreview`corresponding to the item at the given indexPath.
698        ///
699        ///
700        /// Parameter `collectionView`: The
701        /// `UICollectionView.`
702        /// Parameter `configuration`: Configuration of the menu that will be presented if the interaction proceeds.
703        ///
704        /// Parameter `indexPath`: Index path of the item at which the interaction is occurring.
705        #[optional]
706        #[unsafe(method(collectionView:contextMenuConfiguration:highlightPreviewForItemAtIndexPath:))]
707        #[unsafe(method_family = none)]
708        unsafe fn collectionView_contextMenuConfiguration_highlightPreviewForItemAtIndexPath(
709            &self,
710            collection_view: &UICollectionView,
711            configuration: &UIContextMenuConfiguration,
712            index_path: &NSIndexPath,
713        ) -> Option<Retained<UITargetedPreview>>;
714
715        #[cfg(all(
716            feature = "UIContextMenuConfiguration",
717            feature = "UIResponder",
718            feature = "UITargetedPreview",
719            feature = "UIView"
720        ))]
721        /// Called when a context menu presented from this collection view is dismissed. Return a
722        /// `UITargetedPreview`corresponding to the item at the given indexPath.
723        ///
724        ///
725        /// Parameter `collectionView`: The
726        /// `UICollectionView.`
727        /// Parameter `configuration`: Configuration of the menu being dismissed.
728        ///
729        /// Parameter `indexPath`: Index path of the item to which the menu is being dismissed.
730        #[optional]
731        #[unsafe(method(collectionView:contextMenuConfiguration:dismissalPreviewForItemAtIndexPath:))]
732        #[unsafe(method_family = none)]
733        unsafe fn collectionView_contextMenuConfiguration_dismissalPreviewForItemAtIndexPath(
734            &self,
735            collection_view: &UICollectionView,
736            configuration: &UIContextMenuConfiguration,
737            index_path: &NSIndexPath,
738        ) -> Option<Retained<UITargetedPreview>>;
739
740        #[cfg(all(
741            feature = "UIContextMenuConfiguration",
742            feature = "UIContextMenuInteraction",
743            feature = "UIResponder",
744            feature = "UIView"
745        ))]
746        /// Called when the interaction is about to "commit" in response to the user tapping the preview.
747        ///
748        ///
749        /// Parameter `collectionView`: The
750        /// `UICollectionView.`
751        /// Parameter `configuration`: Configuration of the currently displayed menu.
752        ///
753        /// Parameter `animator`: Commit animator. Add animations to this object to run them alongside the commit transition.
754        #[optional]
755        #[unsafe(method(collectionView:willPerformPreviewActionForMenuWithConfiguration:animator:))]
756        #[unsafe(method_family = none)]
757        unsafe fn collectionView_willPerformPreviewActionForMenuWithConfiguration_animator(
758            &self,
759            collection_view: &UICollectionView,
760            configuration: &UIContextMenuConfiguration,
761            animator: &ProtocolObject<dyn UIContextMenuInteractionCommitAnimating>,
762        );
763
764        #[cfg(all(
765            feature = "UIContextMenuConfiguration",
766            feature = "UIContextMenuInteraction",
767            feature = "UIResponder",
768            feature = "UIView"
769        ))]
770        /// Called when the collection view is about to display a menu.
771        ///
772        ///
773        /// Parameter `collectionView`: The
774        /// `UICollectionView.`
775        /// Parameter `configuration`: The configuration of the menu about to be displayed.
776        ///
777        /// Parameter `animator`: Appearance animator. Add animations to run them alongside the appearance transition.
778        #[optional]
779        #[unsafe(method(collectionView:willDisplayContextMenuWithConfiguration:animator:))]
780        #[unsafe(method_family = none)]
781        unsafe fn collectionView_willDisplayContextMenuWithConfiguration_animator(
782            &self,
783            collection_view: &UICollectionView,
784            configuration: &UIContextMenuConfiguration,
785            animator: Option<&ProtocolObject<dyn UIContextMenuInteractionAnimating>>,
786        );
787
788        #[cfg(all(
789            feature = "UIContextMenuConfiguration",
790            feature = "UIContextMenuInteraction",
791            feature = "UIResponder",
792            feature = "UIView"
793        ))]
794        /// Called when the collection view's context menu interaction is about to end.
795        ///
796        ///
797        /// Parameter `collectionView`: The
798        /// `UICollectionView.`
799        /// Parameter `configuration`: Ending configuration.
800        ///
801        /// Parameter `animator`: Disappearance animator. Add animations to run them alongside the disappearance transition.
802        #[optional]
803        #[unsafe(method(collectionView:willEndContextMenuInteractionWithConfiguration:animator:))]
804        #[unsafe(method_family = none)]
805        unsafe fn collectionView_willEndContextMenuInteractionWithConfiguration_animator(
806            &self,
807            collection_view: &UICollectionView,
808            configuration: &UIContextMenuConfiguration,
809            animator: Option<&ProtocolObject<dyn UIContextMenuInteractionAnimating>>,
810        );
811
812        #[cfg(all(
813            feature = "UIResponder",
814            feature = "UIView",
815            feature = "UIWindowSceneActivationConfiguration",
816            feature = "objc2-core-foundation"
817        ))]
818        /// Return a valid
819        /// `UIWindowSceneActivationConfiguration`to allow for the cell to be expanded into a new scene. Return nil to prevent the interaction from starting.
820        ///
821        ///
822        /// Parameter `collectionView`: The collection view
823        ///
824        /// Parameter `indexPath`: The index path of the cell being interacted with
825        ///
826        /// Parameter `point`: The centroid of the interaction in the collection view's coordinate space.
827        #[optional]
828        #[unsafe(method(collectionView:sceneActivationConfigurationForItemAtIndexPath:point:))]
829        #[unsafe(method_family = none)]
830        unsafe fn collectionView_sceneActivationConfigurationForItemAtIndexPath_point(
831            &self,
832            collection_view: &UICollectionView,
833            index_path: &NSIndexPath,
834            point: CGPoint,
835        ) -> Option<Retained<UIWindowSceneActivationConfiguration>>;
836
837        #[cfg(all(
838            feature = "UIContextMenuConfiguration",
839            feature = "UIResponder",
840            feature = "UIView",
841            feature = "objc2-core-foundation"
842        ))]
843        /// Called when the interaction begins.
844        ///
845        ///
846        /// Parameter `collectionView`: The
847        /// `UICollectionView.`
848        /// Parameter `indexPath`: IndexPath of the item for which a configuration is being requested.
849        ///
850        /// Parameter `point`: Touch location in the collection view's coordinate space
851        ///
852        ///
853        /// Returns: A UIContextMenuConfiguration describing the menu to be presented. Return nil to prevent the interaction from beginning.
854        /// Returning an empty configuration causes the interaction to begin then fail with a cancellation effect. You might use this
855        /// to indicate to users that it's possible for a menu to be presented from this element, but that there are no actions to
856        /// present at this particular time. If the non-deprecated replacement for the configuration, highlight preview, or dismissal preview methods is implemented this method is not called.
857        #[deprecated]
858        #[optional]
859        #[unsafe(method(collectionView:contextMenuConfigurationForItemAtIndexPath:point:))]
860        #[unsafe(method_family = none)]
861        unsafe fn collectionView_contextMenuConfigurationForItemAtIndexPath_point(
862            &self,
863            collection_view: &UICollectionView,
864            index_path: &NSIndexPath,
865            point: CGPoint,
866        ) -> Option<Retained<UIContextMenuConfiguration>>;
867
868        #[cfg(all(
869            feature = "UIContextMenuConfiguration",
870            feature = "UIResponder",
871            feature = "UITargetedPreview",
872            feature = "UIView"
873        ))]
874        /// Called when the interaction begins. Return a UITargetedPreview describing the desired highlight preview.
875        /// If the non-deprecated replacement for the configuration, highlight preview, or dismissal preview methods is implemented this method is not called.
876        ///
877        ///
878        /// Parameter `collectionView`: The
879        /// `UICollectionView.`
880        /// Parameter `configuration`: The configuration of the menu about to be displayed by this interaction.
881        #[deprecated]
882        #[optional]
883        #[unsafe(method(collectionView:previewForHighlightingContextMenuWithConfiguration:))]
884        #[unsafe(method_family = none)]
885        unsafe fn collectionView_previewForHighlightingContextMenuWithConfiguration(
886            &self,
887            collection_view: &UICollectionView,
888            configuration: &UIContextMenuConfiguration,
889        ) -> Option<Retained<UITargetedPreview>>;
890
891        #[cfg(all(
892            feature = "UIContextMenuConfiguration",
893            feature = "UIResponder",
894            feature = "UITargetedPreview",
895            feature = "UIView"
896        ))]
897        /// Called when the interaction is about to dismiss. Return a UITargetedPreview describing the desired dismissal target.
898        /// The interaction will animate the presented menu to the target. Use this to customize the dismissal animation.
899        /// If the non-deprecated replacement for the configuration, highlight preview, or dismissal preview methods is implemented this method is not called.
900        ///
901        ///
902        /// Parameter `collectionView`: The
903        /// `UICollectionView.`
904        /// Parameter `configuration`: The configuration of the menu displayed by this interaction.
905        #[deprecated]
906        #[optional]
907        #[unsafe(method(collectionView:previewForDismissingContextMenuWithConfiguration:))]
908        #[unsafe(method_family = none)]
909        unsafe fn collectionView_previewForDismissingContextMenuWithConfiguration(
910            &self,
911            collection_view: &UICollectionView,
912            configuration: &UIContextMenuConfiguration,
913        ) -> Option<Retained<UITargetedPreview>>;
914    }
915);
916
917extern_class!(
918    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionview?language=objc)
919    #[unsafe(super(UIScrollView, UIView, UIResponder, NSObject))]
920    #[thread_kind = MainThreadOnly]
921    #[derive(Debug, PartialEq, Eq, Hash)]
922    #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
923    pub struct UICollectionView;
924);
925
926#[cfg(all(
927    feature = "UIResponder",
928    feature = "UIScrollView",
929    feature = "UIView",
930    feature = "objc2-quartz-core"
931))]
932#[cfg(not(target_os = "watchos"))]
933unsafe impl CALayerDelegate for UICollectionView {}
934
935#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
936unsafe impl NSCoding for UICollectionView {}
937
938#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
939unsafe impl NSObjectProtocol for UICollectionView {}
940
941#[cfg(all(
942    feature = "UIAppearance",
943    feature = "UIResponder",
944    feature = "UIScrollView",
945    feature = "UIView"
946))]
947unsafe impl UIAppearance for UICollectionView {}
948
949#[cfg(all(
950    feature = "UIAppearance",
951    feature = "UIResponder",
952    feature = "UIScrollView",
953    feature = "UIView"
954))]
955unsafe impl UIAppearanceContainer for UICollectionView {}
956
957#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
958unsafe impl UICoordinateSpace for UICollectionView {}
959
960#[cfg(all(
961    feature = "UIDataSourceTranslating",
962    feature = "UIResponder",
963    feature = "UIScrollView",
964    feature = "UIView"
965))]
966unsafe impl UIDataSourceTranslating for UICollectionView {}
967
968#[cfg(all(
969    feature = "UIDynamicBehavior",
970    feature = "UIResponder",
971    feature = "UIScrollView",
972    feature = "UIView"
973))]
974unsafe impl UIDynamicItem for UICollectionView {}
975
976#[cfg(all(
977    feature = "UIFocus",
978    feature = "UIResponder",
979    feature = "UIScrollView",
980    feature = "UIView"
981))]
982unsafe impl UIFocusEnvironment for UICollectionView {}
983
984#[cfg(all(
985    feature = "UIFocus",
986    feature = "UIResponder",
987    feature = "UIScrollView",
988    feature = "UIView"
989))]
990unsafe impl UIFocusItem for UICollectionView {}
991
992#[cfg(all(
993    feature = "UIFocus",
994    feature = "UIResponder",
995    feature = "UIScrollView",
996    feature = "UIView"
997))]
998unsafe impl UIFocusItemContainer for UICollectionView {}
999
1000#[cfg(all(
1001    feature = "UIFocus",
1002    feature = "UIResponder",
1003    feature = "UIScrollView",
1004    feature = "UIView"
1005))]
1006unsafe impl UIFocusItemScrollableContainer for UICollectionView {}
1007
1008#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
1009unsafe impl UIResponderStandardEditActions for UICollectionView {}
1010
1011#[cfg(all(
1012    feature = "UIResponder",
1013    feature = "UIScrollView",
1014    feature = "UITraitCollection",
1015    feature = "UIView"
1016))]
1017unsafe impl UITraitEnvironment for UICollectionView {}
1018
1019#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
1020impl UICollectionView {
1021    extern_methods!(
1022        #[cfg(all(feature = "UICollectionViewLayout", feature = "objc2-core-foundation"))]
1023        #[unsafe(method(initWithFrame:collectionViewLayout:))]
1024        #[unsafe(method_family = init)]
1025        pub unsafe fn initWithFrame_collectionViewLayout(
1026            this: Allocated<Self>,
1027            frame: CGRect,
1028            layout: &UICollectionViewLayout,
1029        ) -> Retained<Self>;
1030
1031        #[unsafe(method(initWithCoder:))]
1032        #[unsafe(method_family = init)]
1033        pub unsafe fn initWithCoder(
1034            this: Allocated<Self>,
1035            coder: &NSCoder,
1036        ) -> Option<Retained<Self>>;
1037
1038        #[cfg(feature = "UICollectionViewLayout")]
1039        #[unsafe(method(collectionViewLayout))]
1040        #[unsafe(method_family = none)]
1041        pub unsafe fn collectionViewLayout(&self) -> Retained<UICollectionViewLayout>;
1042
1043        #[cfg(feature = "UICollectionViewLayout")]
1044        /// Setter for [`collectionViewLayout`][Self::collectionViewLayout].
1045        #[unsafe(method(setCollectionViewLayout:))]
1046        #[unsafe(method_family = none)]
1047        pub unsafe fn setCollectionViewLayout(
1048            &self,
1049            collection_view_layout: &UICollectionViewLayout,
1050        );
1051
1052        #[unsafe(method(delegate))]
1053        #[unsafe(method_family = none)]
1054        pub unsafe fn delegate(
1055            &self,
1056        ) -> Option<Retained<ProtocolObject<dyn UICollectionViewDelegate>>>;
1057
1058        /// This is a [weak property][objc2::topics::weak_property].
1059        /// Setter for [`delegate`][Self::delegate].
1060        #[unsafe(method(setDelegate:))]
1061        #[unsafe(method_family = none)]
1062        pub unsafe fn setDelegate(
1063            &self,
1064            delegate: Option<&ProtocolObject<dyn UICollectionViewDelegate>>,
1065        );
1066
1067        #[unsafe(method(dataSource))]
1068        #[unsafe(method_family = none)]
1069        pub unsafe fn dataSource(
1070            &self,
1071        ) -> Option<Retained<ProtocolObject<dyn UICollectionViewDataSource>>>;
1072
1073        /// This is a [weak property][objc2::topics::weak_property].
1074        /// Setter for [`dataSource`][Self::dataSource].
1075        #[unsafe(method(setDataSource:))]
1076        #[unsafe(method_family = none)]
1077        pub unsafe fn setDataSource(
1078            &self,
1079            data_source: Option<&ProtocolObject<dyn UICollectionViewDataSource>>,
1080        );
1081
1082        #[unsafe(method(prefetchDataSource))]
1083        #[unsafe(method_family = none)]
1084        pub unsafe fn prefetchDataSource(
1085            &self,
1086        ) -> Option<Retained<ProtocolObject<dyn UICollectionViewDataSourcePrefetching>>>;
1087
1088        /// This is a [weak property][objc2::topics::weak_property].
1089        /// Setter for [`prefetchDataSource`][Self::prefetchDataSource].
1090        #[unsafe(method(setPrefetchDataSource:))]
1091        #[unsafe(method_family = none)]
1092        pub unsafe fn setPrefetchDataSource(
1093            &self,
1094            prefetch_data_source: Option<
1095                &ProtocolObject<dyn UICollectionViewDataSourcePrefetching>,
1096            >,
1097        );
1098
1099        #[unsafe(method(isPrefetchingEnabled))]
1100        #[unsafe(method_family = none)]
1101        pub unsafe fn isPrefetchingEnabled(&self) -> bool;
1102
1103        /// Setter for [`isPrefetchingEnabled`][Self::isPrefetchingEnabled].
1104        #[unsafe(method(setPrefetchingEnabled:))]
1105        #[unsafe(method_family = none)]
1106        pub unsafe fn setPrefetchingEnabled(&self, prefetching_enabled: bool);
1107
1108        #[unsafe(method(dragDelegate))]
1109        #[unsafe(method_family = none)]
1110        pub unsafe fn dragDelegate(
1111            &self,
1112        ) -> Option<Retained<ProtocolObject<dyn UICollectionViewDragDelegate>>>;
1113
1114        /// This is a [weak property][objc2::topics::weak_property].
1115        /// Setter for [`dragDelegate`][Self::dragDelegate].
1116        #[unsafe(method(setDragDelegate:))]
1117        #[unsafe(method_family = none)]
1118        pub unsafe fn setDragDelegate(
1119            &self,
1120            drag_delegate: Option<&ProtocolObject<dyn UICollectionViewDragDelegate>>,
1121        );
1122
1123        #[unsafe(method(dropDelegate))]
1124        #[unsafe(method_family = none)]
1125        pub unsafe fn dropDelegate(
1126            &self,
1127        ) -> Option<Retained<ProtocolObject<dyn UICollectionViewDropDelegate>>>;
1128
1129        /// This is a [weak property][objc2::topics::weak_property].
1130        /// Setter for [`dropDelegate`][Self::dropDelegate].
1131        #[unsafe(method(setDropDelegate:))]
1132        #[unsafe(method_family = none)]
1133        pub unsafe fn setDropDelegate(
1134            &self,
1135            drop_delegate: Option<&ProtocolObject<dyn UICollectionViewDropDelegate>>,
1136        );
1137
1138        #[unsafe(method(dragInteractionEnabled))]
1139        #[unsafe(method_family = none)]
1140        pub unsafe fn dragInteractionEnabled(&self) -> bool;
1141
1142        /// Setter for [`dragInteractionEnabled`][Self::dragInteractionEnabled].
1143        #[unsafe(method(setDragInteractionEnabled:))]
1144        #[unsafe(method_family = none)]
1145        pub unsafe fn setDragInteractionEnabled(&self, drag_interaction_enabled: bool);
1146
1147        #[cfg(feature = "UIContextMenuInteraction")]
1148        #[unsafe(method(contextMenuInteraction))]
1149        #[unsafe(method_family = none)]
1150        pub unsafe fn contextMenuInteraction(&self) -> Option<Retained<UIContextMenuInteraction>>;
1151
1152        #[unsafe(method(reorderingCadence))]
1153        #[unsafe(method_family = none)]
1154        pub unsafe fn reorderingCadence(&self) -> UICollectionViewReorderingCadence;
1155
1156        /// Setter for [`reorderingCadence`][Self::reorderingCadence].
1157        #[unsafe(method(setReorderingCadence:))]
1158        #[unsafe(method_family = none)]
1159        pub unsafe fn setReorderingCadence(
1160            &self,
1161            reordering_cadence: UICollectionViewReorderingCadence,
1162        );
1163
1164        #[unsafe(method(selfSizingInvalidation))]
1165        #[unsafe(method_family = none)]
1166        pub unsafe fn selfSizingInvalidation(&self) -> UICollectionViewSelfSizingInvalidation;
1167
1168        /// Setter for [`selfSizingInvalidation`][Self::selfSizingInvalidation].
1169        #[unsafe(method(setSelfSizingInvalidation:))]
1170        #[unsafe(method_family = none)]
1171        pub unsafe fn setSelfSizingInvalidation(
1172            &self,
1173            self_sizing_invalidation: UICollectionViewSelfSizingInvalidation,
1174        );
1175
1176        #[unsafe(method(backgroundView))]
1177        #[unsafe(method_family = none)]
1178        pub unsafe fn backgroundView(&self) -> Option<Retained<UIView>>;
1179
1180        /// Setter for [`backgroundView`][Self::backgroundView].
1181        #[unsafe(method(setBackgroundView:))]
1182        #[unsafe(method_family = none)]
1183        pub unsafe fn setBackgroundView(&self, background_view: Option<&UIView>);
1184
1185        #[unsafe(method(registerClass:forCellWithReuseIdentifier:))]
1186        #[unsafe(method_family = none)]
1187        pub unsafe fn registerClass_forCellWithReuseIdentifier(
1188            &self,
1189            cell_class: Option<&AnyClass>,
1190            identifier: &NSString,
1191        );
1192
1193        #[cfg(feature = "UINib")]
1194        #[deprecated = "Loading Interface Builder products will not be supported in a future version of visionOS."]
1195        #[unsafe(method(registerNib:forCellWithReuseIdentifier:))]
1196        #[unsafe(method_family = none)]
1197        pub unsafe fn registerNib_forCellWithReuseIdentifier(
1198            &self,
1199            nib: Option<&UINib>,
1200            identifier: &NSString,
1201        );
1202
1203        #[unsafe(method(registerClass:forSupplementaryViewOfKind:withReuseIdentifier:))]
1204        #[unsafe(method_family = none)]
1205        pub unsafe fn registerClass_forSupplementaryViewOfKind_withReuseIdentifier(
1206            &self,
1207            view_class: Option<&AnyClass>,
1208            element_kind: &NSString,
1209            identifier: &NSString,
1210        );
1211
1212        #[cfg(feature = "UINib")]
1213        #[deprecated = "Loading Interface Builder products will not be supported in a future version of visionOS."]
1214        #[unsafe(method(registerNib:forSupplementaryViewOfKind:withReuseIdentifier:))]
1215        #[unsafe(method_family = none)]
1216        pub unsafe fn registerNib_forSupplementaryViewOfKind_withReuseIdentifier(
1217            &self,
1218            nib: Option<&UINib>,
1219            kind: &NSString,
1220            identifier: &NSString,
1221        );
1222
1223        #[cfg(feature = "UICollectionViewCell")]
1224        #[unsafe(method(dequeueReusableCellWithReuseIdentifier:forIndexPath:))]
1225        #[unsafe(method_family = none)]
1226        pub unsafe fn dequeueReusableCellWithReuseIdentifier_forIndexPath(
1227            &self,
1228            identifier: &NSString,
1229            index_path: &NSIndexPath,
1230        ) -> Retained<UICollectionViewCell>;
1231
1232        #[cfg(feature = "UICollectionViewCell")]
1233        #[unsafe(method(dequeueReusableSupplementaryViewOfKind:withReuseIdentifier:forIndexPath:))]
1234        #[unsafe(method_family = none)]
1235        pub unsafe fn dequeueReusableSupplementaryViewOfKind_withReuseIdentifier_forIndexPath(
1236            &self,
1237            element_kind: &NSString,
1238            identifier: &NSString,
1239            index_path: &NSIndexPath,
1240        ) -> Retained<UICollectionReusableView>;
1241
1242        #[cfg(all(
1243            feature = "UICollectionViewCell",
1244            feature = "UICollectionViewItemRegistration"
1245        ))]
1246        #[unsafe(method(dequeueConfiguredReusableCellWithRegistration:forIndexPath:item:))]
1247        #[unsafe(method_family = none)]
1248        pub unsafe fn dequeueConfiguredReusableCellWithRegistration_forIndexPath_item(
1249            &self,
1250            registration: &UICollectionViewCellRegistration,
1251            index_path: &NSIndexPath,
1252            item: &AnyObject,
1253        ) -> Retained<UICollectionViewCell>;
1254
1255        #[cfg(all(
1256            feature = "UICollectionViewCell",
1257            feature = "UICollectionViewItemRegistration"
1258        ))]
1259        #[unsafe(method(dequeueConfiguredReusableSupplementaryViewWithRegistration:forIndexPath:))]
1260        #[unsafe(method_family = none)]
1261        pub unsafe fn dequeueConfiguredReusableSupplementaryViewWithRegistration_forIndexPath(
1262            &self,
1263            registration: &UICollectionViewSupplementaryRegistration,
1264            index_path: &NSIndexPath,
1265        ) -> Retained<UICollectionReusableView>;
1266
1267        #[unsafe(method(allowsSelection))]
1268        #[unsafe(method_family = none)]
1269        pub unsafe fn allowsSelection(&self) -> bool;
1270
1271        /// Setter for [`allowsSelection`][Self::allowsSelection].
1272        #[unsafe(method(setAllowsSelection:))]
1273        #[unsafe(method_family = none)]
1274        pub unsafe fn setAllowsSelection(&self, allows_selection: bool);
1275
1276        #[unsafe(method(allowsMultipleSelection))]
1277        #[unsafe(method_family = none)]
1278        pub unsafe fn allowsMultipleSelection(&self) -> bool;
1279
1280        /// Setter for [`allowsMultipleSelection`][Self::allowsMultipleSelection].
1281        #[unsafe(method(setAllowsMultipleSelection:))]
1282        #[unsafe(method_family = none)]
1283        pub unsafe fn setAllowsMultipleSelection(&self, allows_multiple_selection: bool);
1284
1285        #[unsafe(method(indexPathsForSelectedItems))]
1286        #[unsafe(method_family = none)]
1287        pub unsafe fn indexPathsForSelectedItems(&self) -> Option<Retained<NSArray<NSIndexPath>>>;
1288
1289        #[unsafe(method(selectItemAtIndexPath:animated:scrollPosition:))]
1290        #[unsafe(method_family = none)]
1291        pub unsafe fn selectItemAtIndexPath_animated_scrollPosition(
1292            &self,
1293            index_path: Option<&NSIndexPath>,
1294            animated: bool,
1295            scroll_position: UICollectionViewScrollPosition,
1296        );
1297
1298        #[unsafe(method(deselectItemAtIndexPath:animated:))]
1299        #[unsafe(method_family = none)]
1300        pub unsafe fn deselectItemAtIndexPath_animated(
1301            &self,
1302            index_path: &NSIndexPath,
1303            animated: bool,
1304        );
1305
1306        #[unsafe(method(hasUncommittedUpdates))]
1307        #[unsafe(method_family = none)]
1308        pub unsafe fn hasUncommittedUpdates(&self) -> bool;
1309
1310        #[unsafe(method(reloadData))]
1311        #[unsafe(method_family = none)]
1312        pub unsafe fn reloadData(&self);
1313
1314        #[cfg(feature = "UICollectionViewLayout")]
1315        #[unsafe(method(setCollectionViewLayout:animated:))]
1316        #[unsafe(method_family = none)]
1317        pub unsafe fn setCollectionViewLayout_animated(
1318            &self,
1319            layout: &UICollectionViewLayout,
1320            animated: bool,
1321        );
1322
1323        #[cfg(all(feature = "UICollectionViewLayout", feature = "block2"))]
1324        #[unsafe(method(setCollectionViewLayout:animated:completion:))]
1325        #[unsafe(method_family = none)]
1326        pub unsafe fn setCollectionViewLayout_animated_completion(
1327            &self,
1328            layout: &UICollectionViewLayout,
1329            animated: bool,
1330            completion: Option<&block2::Block<dyn Fn(Bool)>>,
1331        );
1332
1333        #[cfg(all(
1334            feature = "UICollectionViewLayout",
1335            feature = "UICollectionViewTransitionLayout",
1336            feature = "block2"
1337        ))]
1338        #[unsafe(method(startInteractiveTransitionToCollectionViewLayout:completion:))]
1339        #[unsafe(method_family = none)]
1340        pub unsafe fn startInteractiveTransitionToCollectionViewLayout_completion(
1341            &self,
1342            layout: &UICollectionViewLayout,
1343            completion: UICollectionViewLayoutInteractiveTransitionCompletion,
1344        ) -> Retained<UICollectionViewTransitionLayout>;
1345
1346        #[unsafe(method(finishInteractiveTransition))]
1347        #[unsafe(method_family = none)]
1348        pub unsafe fn finishInteractiveTransition(&self);
1349
1350        #[unsafe(method(cancelInteractiveTransition))]
1351        #[unsafe(method_family = none)]
1352        pub unsafe fn cancelInteractiveTransition(&self);
1353
1354        #[unsafe(method(numberOfSections))]
1355        #[unsafe(method_family = none)]
1356        pub unsafe fn numberOfSections(&self) -> NSInteger;
1357
1358        #[unsafe(method(numberOfItemsInSection:))]
1359        #[unsafe(method_family = none)]
1360        pub unsafe fn numberOfItemsInSection(&self, section: NSInteger) -> NSInteger;
1361
1362        #[cfg(feature = "UICollectionViewLayout")]
1363        #[unsafe(method(layoutAttributesForItemAtIndexPath:))]
1364        #[unsafe(method_family = none)]
1365        pub unsafe fn layoutAttributesForItemAtIndexPath(
1366            &self,
1367            index_path: &NSIndexPath,
1368        ) -> Option<Retained<UICollectionViewLayoutAttributes>>;
1369
1370        #[cfg(feature = "UICollectionViewLayout")]
1371        #[unsafe(method(layoutAttributesForSupplementaryElementOfKind:atIndexPath:))]
1372        #[unsafe(method_family = none)]
1373        pub unsafe fn layoutAttributesForSupplementaryElementOfKind_atIndexPath(
1374            &self,
1375            kind: &NSString,
1376            index_path: &NSIndexPath,
1377        ) -> Option<Retained<UICollectionViewLayoutAttributes>>;
1378
1379        #[cfg(feature = "objc2-core-foundation")]
1380        #[unsafe(method(indexPathForItemAtPoint:))]
1381        #[unsafe(method_family = none)]
1382        pub unsafe fn indexPathForItemAtPoint(
1383            &self,
1384            point: CGPoint,
1385        ) -> Option<Retained<NSIndexPath>>;
1386
1387        #[cfg(feature = "UICollectionViewCell")]
1388        #[unsafe(method(indexPathForCell:))]
1389        #[unsafe(method_family = none)]
1390        pub unsafe fn indexPathForCell(
1391            &self,
1392            cell: &UICollectionViewCell,
1393        ) -> Option<Retained<NSIndexPath>>;
1394
1395        #[cfg(feature = "UICollectionViewCell")]
1396        /// Gets the index path of the specified supplementary view.
1397        ///
1398        /// Parameter `supplementaryView`: The supplementary or decoration view whose index path you want.
1399        ///
1400        /// Returns: The index path of the specified view if it is in the collection view, else `nil`.
1401        #[unsafe(method(indexPathForSupplementaryView:))]
1402        #[unsafe(method_family = none)]
1403        pub unsafe fn indexPathForSupplementaryView(
1404            &self,
1405            supplementary_view: &UICollectionReusableView,
1406        ) -> Option<Retained<NSIndexPath>>;
1407
1408        #[cfg(feature = "UICollectionViewCell")]
1409        #[unsafe(method(cellForItemAtIndexPath:))]
1410        #[unsafe(method_family = none)]
1411        pub unsafe fn cellForItemAtIndexPath(
1412            &self,
1413            index_path: &NSIndexPath,
1414        ) -> Option<Retained<UICollectionViewCell>>;
1415
1416        #[cfg(feature = "UICollectionViewCell")]
1417        #[unsafe(method(visibleCells))]
1418        #[unsafe(method_family = none)]
1419        pub unsafe fn visibleCells(&self) -> Retained<NSArray<UICollectionViewCell>>;
1420
1421        #[unsafe(method(indexPathsForVisibleItems))]
1422        #[unsafe(method_family = none)]
1423        pub unsafe fn indexPathsForVisibleItems(&self) -> Retained<NSArray<NSIndexPath>>;
1424
1425        #[cfg(feature = "UICollectionViewCell")]
1426        #[unsafe(method(supplementaryViewForElementKind:atIndexPath:))]
1427        #[unsafe(method_family = none)]
1428        pub unsafe fn supplementaryViewForElementKind_atIndexPath(
1429            &self,
1430            element_kind: &NSString,
1431            index_path: &NSIndexPath,
1432        ) -> Option<Retained<UICollectionReusableView>>;
1433
1434        #[cfg(feature = "UICollectionViewCell")]
1435        #[unsafe(method(visibleSupplementaryViewsOfKind:))]
1436        #[unsafe(method_family = none)]
1437        pub unsafe fn visibleSupplementaryViewsOfKind(
1438            &self,
1439            element_kind: &NSString,
1440        ) -> Retained<NSArray<UICollectionReusableView>>;
1441
1442        #[unsafe(method(indexPathsForVisibleSupplementaryElementsOfKind:))]
1443        #[unsafe(method_family = none)]
1444        pub unsafe fn indexPathsForVisibleSupplementaryElementsOfKind(
1445            &self,
1446            element_kind: &NSString,
1447        ) -> Retained<NSArray<NSIndexPath>>;
1448
1449        #[unsafe(method(scrollToItemAtIndexPath:atScrollPosition:animated:))]
1450        #[unsafe(method_family = none)]
1451        pub unsafe fn scrollToItemAtIndexPath_atScrollPosition_animated(
1452            &self,
1453            index_path: &NSIndexPath,
1454            scroll_position: UICollectionViewScrollPosition,
1455            animated: bool,
1456        );
1457
1458        #[unsafe(method(insertSections:))]
1459        #[unsafe(method_family = none)]
1460        pub unsafe fn insertSections(&self, sections: &NSIndexSet);
1461
1462        #[unsafe(method(deleteSections:))]
1463        #[unsafe(method_family = none)]
1464        pub unsafe fn deleteSections(&self, sections: &NSIndexSet);
1465
1466        #[unsafe(method(moveSection:toSection:))]
1467        #[unsafe(method_family = none)]
1468        pub unsafe fn moveSection_toSection(&self, section: NSInteger, new_section: NSInteger);
1469
1470        #[unsafe(method(reloadSections:))]
1471        #[unsafe(method_family = none)]
1472        pub unsafe fn reloadSections(&self, sections: &NSIndexSet);
1473
1474        #[unsafe(method(insertItemsAtIndexPaths:))]
1475        #[unsafe(method_family = none)]
1476        pub unsafe fn insertItemsAtIndexPaths(&self, index_paths: &NSArray<NSIndexPath>);
1477
1478        #[unsafe(method(deleteItemsAtIndexPaths:))]
1479        #[unsafe(method_family = none)]
1480        pub unsafe fn deleteItemsAtIndexPaths(&self, index_paths: &NSArray<NSIndexPath>);
1481
1482        #[unsafe(method(moveItemAtIndexPath:toIndexPath:))]
1483        #[unsafe(method_family = none)]
1484        pub unsafe fn moveItemAtIndexPath_toIndexPath(
1485            &self,
1486            index_path: &NSIndexPath,
1487            new_index_path: &NSIndexPath,
1488        );
1489
1490        #[unsafe(method(reloadItemsAtIndexPaths:))]
1491        #[unsafe(method_family = none)]
1492        pub unsafe fn reloadItemsAtIndexPaths(&self, index_paths: &NSArray<NSIndexPath>);
1493
1494        #[unsafe(method(reconfigureItemsAtIndexPaths:))]
1495        #[unsafe(method_family = none)]
1496        pub unsafe fn reconfigureItemsAtIndexPaths(&self, index_paths: &NSArray<NSIndexPath>);
1497
1498        #[cfg(feature = "block2")]
1499        #[unsafe(method(performBatchUpdates:completion:))]
1500        #[unsafe(method_family = none)]
1501        pub unsafe fn performBatchUpdates_completion(
1502            &self,
1503            updates: Option<&block2::Block<dyn Fn() + '_>>,
1504            completion: Option<&block2::Block<dyn Fn(Bool)>>,
1505        );
1506
1507        #[unsafe(method(beginInteractiveMovementForItemAtIndexPath:))]
1508        #[unsafe(method_family = none)]
1509        pub unsafe fn beginInteractiveMovementForItemAtIndexPath(
1510            &self,
1511            index_path: &NSIndexPath,
1512        ) -> bool;
1513
1514        #[cfg(feature = "objc2-core-foundation")]
1515        #[unsafe(method(updateInteractiveMovementTargetPosition:))]
1516        #[unsafe(method_family = none)]
1517        pub unsafe fn updateInteractiveMovementTargetPosition(&self, target_position: CGPoint);
1518
1519        #[unsafe(method(endInteractiveMovement))]
1520        #[unsafe(method_family = none)]
1521        pub unsafe fn endInteractiveMovement(&self);
1522
1523        #[unsafe(method(cancelInteractiveMovement))]
1524        #[unsafe(method_family = none)]
1525        pub unsafe fn cancelInteractiveMovement(&self);
1526
1527        #[unsafe(method(remembersLastFocusedIndexPath))]
1528        #[unsafe(method_family = none)]
1529        pub unsafe fn remembersLastFocusedIndexPath(&self) -> bool;
1530
1531        /// Setter for [`remembersLastFocusedIndexPath`][Self::remembersLastFocusedIndexPath].
1532        #[unsafe(method(setRemembersLastFocusedIndexPath:))]
1533        #[unsafe(method_family = none)]
1534        pub unsafe fn setRemembersLastFocusedIndexPath(
1535            &self,
1536            remembers_last_focused_index_path: bool,
1537        );
1538
1539        /// When enabled, the collection view ensures that selection is automatically triggered when focus moves to a cell.
1540        /// Defaults to a system derived value based on platform and other properties of the collection view.
1541        #[unsafe(method(selectionFollowsFocus))]
1542        #[unsafe(method_family = none)]
1543        pub unsafe fn selectionFollowsFocus(&self) -> bool;
1544
1545        /// Setter for [`selectionFollowsFocus`][Self::selectionFollowsFocus].
1546        #[unsafe(method(setSelectionFollowsFocus:))]
1547        #[unsafe(method_family = none)]
1548        pub unsafe fn setSelectionFollowsFocus(&self, selection_follows_focus: bool);
1549
1550        /// Determines if the collection view allows its cells to become focused.
1551        /// When collectionView:canFocusItemAtIndexPath: is implemented, its return value takes precedence over this method.
1552        /// Defaults to a system derived value based on platform and other properties of the collection view.
1553        #[unsafe(method(allowsFocus))]
1554        #[unsafe(method_family = none)]
1555        pub unsafe fn allowsFocus(&self) -> bool;
1556
1557        /// Setter for [`allowsFocus`][Self::allowsFocus].
1558        #[unsafe(method(setAllowsFocus:))]
1559        #[unsafe(method_family = none)]
1560        pub unsafe fn setAllowsFocus(&self, allows_focus: bool);
1561
1562        /// Determines if the collection view allows its cells to become focused while editing.
1563        /// When collectionView:canFocusItemAtIndexPath: is implemented, its return value takes precedence over this method.
1564        /// Defaults to a system derived value based on platform and other properties of the collection view.
1565        #[unsafe(method(allowsFocusDuringEditing))]
1566        #[unsafe(method_family = none)]
1567        pub unsafe fn allowsFocusDuringEditing(&self) -> bool;
1568
1569        /// Setter for [`allowsFocusDuringEditing`][Self::allowsFocusDuringEditing].
1570        #[unsafe(method(setAllowsFocusDuringEditing:))]
1571        #[unsafe(method_family = none)]
1572        pub unsafe fn setAllowsFocusDuringEditing(&self, allows_focus_during_editing: bool);
1573
1574        #[unsafe(method(hasActiveDrag))]
1575        #[unsafe(method_family = none)]
1576        pub unsafe fn hasActiveDrag(&self) -> bool;
1577
1578        #[unsafe(method(hasActiveDrop))]
1579        #[unsafe(method_family = none)]
1580        pub unsafe fn hasActiveDrop(&self) -> bool;
1581
1582        #[unsafe(method(isEditing))]
1583        #[unsafe(method_family = none)]
1584        pub unsafe fn isEditing(&self) -> bool;
1585
1586        /// Setter for [`isEditing`][Self::isEditing].
1587        #[unsafe(method(setEditing:))]
1588        #[unsafe(method_family = none)]
1589        pub unsafe fn setEditing(&self, editing: bool);
1590
1591        #[unsafe(method(allowsSelectionDuringEditing))]
1592        #[unsafe(method_family = none)]
1593        pub unsafe fn allowsSelectionDuringEditing(&self) -> bool;
1594
1595        /// Setter for [`allowsSelectionDuringEditing`][Self::allowsSelectionDuringEditing].
1596        #[unsafe(method(setAllowsSelectionDuringEditing:))]
1597        #[unsafe(method_family = none)]
1598        pub unsafe fn setAllowsSelectionDuringEditing(&self, allows_selection_during_editing: bool);
1599
1600        #[unsafe(method(allowsMultipleSelectionDuringEditing))]
1601        #[unsafe(method_family = none)]
1602        pub unsafe fn allowsMultipleSelectionDuringEditing(&self) -> bool;
1603
1604        /// Setter for [`allowsMultipleSelectionDuringEditing`][Self::allowsMultipleSelectionDuringEditing].
1605        #[unsafe(method(setAllowsMultipleSelectionDuringEditing:))]
1606        #[unsafe(method_family = none)]
1607        pub unsafe fn setAllowsMultipleSelectionDuringEditing(
1608            &self,
1609            allows_multiple_selection_during_editing: bool,
1610        );
1611    );
1612}
1613
1614/// Methods declared on superclass `UIView`.
1615#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
1616impl UICollectionView {
1617    extern_methods!(
1618        #[cfg(feature = "objc2-core-foundation")]
1619        #[unsafe(method(initWithFrame:))]
1620        #[unsafe(method_family = init)]
1621        pub unsafe fn initWithFrame(this: Allocated<Self>, frame: CGRect) -> Retained<Self>;
1622    );
1623}
1624
1625/// Methods declared on superclass `NSObject`.
1626#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
1627impl UICollectionView {
1628    extern_methods!(
1629        #[unsafe(method(init))]
1630        #[unsafe(method_family = init)]
1631        pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>;
1632
1633        #[unsafe(method(new))]
1634        #[unsafe(method_family = new)]
1635        pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>;
1636    );
1637}
1638
1639/// UIDragAndDrop.
1640#[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
1641impl UICollectionView {
1642    extern_methods!();
1643}
1644
1645#[cfg(all(
1646    feature = "UIResponder",
1647    feature = "UIScrollView",
1648    feature = "UISpringLoadedInteractionSupporting",
1649    feature = "UIView"
1650))]
1651unsafe impl UISpringLoadedInteractionSupporting for UICollectionView {}
1652
1653extern_protocol!(
1654    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdragdelegate?language=objc)
1655    pub unsafe trait UICollectionViewDragDelegate:
1656        NSObjectProtocol + MainThreadOnly
1657    {
1658        #[cfg(all(
1659            feature = "UIDragItem",
1660            feature = "UIDragSession",
1661            feature = "UIResponder",
1662            feature = "UIScrollView",
1663            feature = "UIView"
1664        ))]
1665        #[unsafe(method(collectionView:itemsForBeginningDragSession:atIndexPath:))]
1666        #[unsafe(method_family = none)]
1667        unsafe fn collectionView_itemsForBeginningDragSession_atIndexPath(
1668            &self,
1669            collection_view: &UICollectionView,
1670            session: &ProtocolObject<dyn UIDragSession>,
1671            index_path: &NSIndexPath,
1672        ) -> Retained<NSArray<UIDragItem>>;
1673
1674        #[cfg(all(
1675            feature = "UIDragItem",
1676            feature = "UIDragSession",
1677            feature = "UIResponder",
1678            feature = "UIScrollView",
1679            feature = "UIView",
1680            feature = "objc2-core-foundation"
1681        ))]
1682        #[optional]
1683        #[unsafe(method(collectionView:itemsForAddingToDragSession:atIndexPath:point:))]
1684        #[unsafe(method_family = none)]
1685        unsafe fn collectionView_itemsForAddingToDragSession_atIndexPath_point(
1686            &self,
1687            collection_view: &UICollectionView,
1688            session: &ProtocolObject<dyn UIDragSession>,
1689            index_path: &NSIndexPath,
1690            point: CGPoint,
1691        ) -> Retained<NSArray<UIDragItem>>;
1692
1693        #[cfg(all(
1694            feature = "UIDragPreviewParameters",
1695            feature = "UIPreviewParameters",
1696            feature = "UIResponder",
1697            feature = "UIScrollView",
1698            feature = "UIView"
1699        ))]
1700        #[optional]
1701        #[unsafe(method(collectionView:dragPreviewParametersForItemAtIndexPath:))]
1702        #[unsafe(method_family = none)]
1703        unsafe fn collectionView_dragPreviewParametersForItemAtIndexPath(
1704            &self,
1705            collection_view: &UICollectionView,
1706            index_path: &NSIndexPath,
1707        ) -> Option<Retained<UIDragPreviewParameters>>;
1708
1709        #[cfg(all(
1710            feature = "UIDragSession",
1711            feature = "UIResponder",
1712            feature = "UIScrollView",
1713            feature = "UIView"
1714        ))]
1715        #[optional]
1716        #[unsafe(method(collectionView:dragSessionWillBegin:))]
1717        #[unsafe(method_family = none)]
1718        unsafe fn collectionView_dragSessionWillBegin(
1719            &self,
1720            collection_view: &UICollectionView,
1721            session: &ProtocolObject<dyn UIDragSession>,
1722        );
1723
1724        #[cfg(all(
1725            feature = "UIDragSession",
1726            feature = "UIResponder",
1727            feature = "UIScrollView",
1728            feature = "UIView"
1729        ))]
1730        #[optional]
1731        #[unsafe(method(collectionView:dragSessionDidEnd:))]
1732        #[unsafe(method_family = none)]
1733        unsafe fn collectionView_dragSessionDidEnd(
1734            &self,
1735            collection_view: &UICollectionView,
1736            session: &ProtocolObject<dyn UIDragSession>,
1737        );
1738
1739        #[cfg(all(
1740            feature = "UIDragSession",
1741            feature = "UIResponder",
1742            feature = "UIScrollView",
1743            feature = "UIView"
1744        ))]
1745        #[optional]
1746        #[unsafe(method(collectionView:dragSessionAllowsMoveOperation:))]
1747        #[unsafe(method_family = none)]
1748        unsafe fn collectionView_dragSessionAllowsMoveOperation(
1749            &self,
1750            collection_view: &UICollectionView,
1751            session: &ProtocolObject<dyn UIDragSession>,
1752        ) -> bool;
1753
1754        #[cfg(all(
1755            feature = "UIDragSession",
1756            feature = "UIResponder",
1757            feature = "UIScrollView",
1758            feature = "UIView"
1759        ))]
1760        #[optional]
1761        #[unsafe(method(collectionView:dragSessionIsRestrictedToDraggingApplication:))]
1762        #[unsafe(method_family = none)]
1763        unsafe fn collectionView_dragSessionIsRestrictedToDraggingApplication(
1764            &self,
1765            collection_view: &UICollectionView,
1766            session: &ProtocolObject<dyn UIDragSession>,
1767        ) -> bool;
1768    }
1769);
1770
1771extern_protocol!(
1772    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropdelegate?language=objc)
1773    pub unsafe trait UICollectionViewDropDelegate:
1774        NSObjectProtocol + MainThreadOnly
1775    {
1776        #[cfg(all(feature = "UIResponder", feature = "UIScrollView", feature = "UIView"))]
1777        #[unsafe(method(collectionView:performDropWithCoordinator:))]
1778        #[unsafe(method_family = none)]
1779        unsafe fn collectionView_performDropWithCoordinator(
1780            &self,
1781            collection_view: &UICollectionView,
1782            coordinator: &ProtocolObject<dyn UICollectionViewDropCoordinator>,
1783        );
1784
1785        #[cfg(all(
1786            feature = "UIDragSession",
1787            feature = "UIResponder",
1788            feature = "UIScrollView",
1789            feature = "UIView"
1790        ))]
1791        #[optional]
1792        #[unsafe(method(collectionView:canHandleDropSession:))]
1793        #[unsafe(method_family = none)]
1794        unsafe fn collectionView_canHandleDropSession(
1795            &self,
1796            collection_view: &UICollectionView,
1797            session: &ProtocolObject<dyn UIDropSession>,
1798        ) -> bool;
1799
1800        #[cfg(all(
1801            feature = "UIDragSession",
1802            feature = "UIResponder",
1803            feature = "UIScrollView",
1804            feature = "UIView"
1805        ))]
1806        #[optional]
1807        #[unsafe(method(collectionView:dropSessionDidEnter:))]
1808        #[unsafe(method_family = none)]
1809        unsafe fn collectionView_dropSessionDidEnter(
1810            &self,
1811            collection_view: &UICollectionView,
1812            session: &ProtocolObject<dyn UIDropSession>,
1813        );
1814
1815        #[cfg(all(
1816            feature = "UIDragSession",
1817            feature = "UIDropInteraction",
1818            feature = "UIResponder",
1819            feature = "UIScrollView",
1820            feature = "UIView"
1821        ))]
1822        #[optional]
1823        #[unsafe(method(collectionView:dropSessionDidUpdate:withDestinationIndexPath:))]
1824        #[unsafe(method_family = none)]
1825        unsafe fn collectionView_dropSessionDidUpdate_withDestinationIndexPath(
1826            &self,
1827            collection_view: &UICollectionView,
1828            session: &ProtocolObject<dyn UIDropSession>,
1829            destination_index_path: Option<&NSIndexPath>,
1830        ) -> Retained<UICollectionViewDropProposal>;
1831
1832        #[cfg(all(
1833            feature = "UIDragSession",
1834            feature = "UIResponder",
1835            feature = "UIScrollView",
1836            feature = "UIView"
1837        ))]
1838        #[optional]
1839        #[unsafe(method(collectionView:dropSessionDidExit:))]
1840        #[unsafe(method_family = none)]
1841        unsafe fn collectionView_dropSessionDidExit(
1842            &self,
1843            collection_view: &UICollectionView,
1844            session: &ProtocolObject<dyn UIDropSession>,
1845        );
1846
1847        #[cfg(all(
1848            feature = "UIDragSession",
1849            feature = "UIResponder",
1850            feature = "UIScrollView",
1851            feature = "UIView"
1852        ))]
1853        #[optional]
1854        #[unsafe(method(collectionView:dropSessionDidEnd:))]
1855        #[unsafe(method_family = none)]
1856        unsafe fn collectionView_dropSessionDidEnd(
1857            &self,
1858            collection_view: &UICollectionView,
1859            session: &ProtocolObject<dyn UIDropSession>,
1860        );
1861
1862        #[cfg(all(
1863            feature = "UIDragPreviewParameters",
1864            feature = "UIPreviewParameters",
1865            feature = "UIResponder",
1866            feature = "UIScrollView",
1867            feature = "UIView"
1868        ))]
1869        #[optional]
1870        #[unsafe(method(collectionView:dropPreviewParametersForItemAtIndexPath:))]
1871        #[unsafe(method_family = none)]
1872        unsafe fn collectionView_dropPreviewParametersForItemAtIndexPath(
1873            &self,
1874            collection_view: &UICollectionView,
1875            index_path: &NSIndexPath,
1876        ) -> Option<Retained<UIDragPreviewParameters>>;
1877    }
1878);
1879
1880/// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropintent?language=objc)
1881// NS_ENUM
1882#[repr(transparent)]
1883#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
1884pub struct UICollectionViewDropIntent(pub NSInteger);
1885impl UICollectionViewDropIntent {
1886    #[doc(alias = "UICollectionViewDropIntentUnspecified")]
1887    pub const Unspecified: Self = Self(0);
1888    #[doc(alias = "UICollectionViewDropIntentInsertAtDestinationIndexPath")]
1889    pub const InsertAtDestinationIndexPath: Self = Self(1);
1890    #[doc(alias = "UICollectionViewDropIntentInsertIntoDestinationIndexPath")]
1891    pub const InsertIntoDestinationIndexPath: Self = Self(2);
1892}
1893
1894unsafe impl Encode for UICollectionViewDropIntent {
1895    const ENCODING: Encoding = NSInteger::ENCODING;
1896}
1897
1898unsafe impl RefEncode for UICollectionViewDropIntent {
1899    const ENCODING_REF: Encoding = Encoding::Pointer(&Self::ENCODING);
1900}
1901
1902extern_class!(
1903    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropproposal?language=objc)
1904    #[unsafe(super(UIDropProposal, NSObject))]
1905    #[thread_kind = MainThreadOnly]
1906    #[derive(Debug, PartialEq, Eq, Hash)]
1907    #[cfg(feature = "UIDropInteraction")]
1908    pub struct UICollectionViewDropProposal;
1909);
1910
1911#[cfg(feature = "UIDropInteraction")]
1912unsafe impl NSCopying for UICollectionViewDropProposal {}
1913
1914#[cfg(feature = "UIDropInteraction")]
1915unsafe impl CopyingHelper for UICollectionViewDropProposal {
1916    type Result = Self;
1917}
1918
1919#[cfg(feature = "UIDropInteraction")]
1920unsafe impl NSObjectProtocol for UICollectionViewDropProposal {}
1921
1922#[cfg(feature = "UIDropInteraction")]
1923impl UICollectionViewDropProposal {
1924    extern_methods!(
1925        #[unsafe(method(initWithDropOperation:intent:))]
1926        #[unsafe(method_family = init)]
1927        pub unsafe fn initWithDropOperation_intent(
1928            this: Allocated<Self>,
1929            operation: UIDropOperation,
1930            intent: UICollectionViewDropIntent,
1931        ) -> Retained<Self>;
1932
1933        #[unsafe(method(intent))]
1934        #[unsafe(method_family = none)]
1935        pub unsafe fn intent(&self) -> UICollectionViewDropIntent;
1936    );
1937}
1938
1939/// Methods declared on superclass `UIDropProposal`.
1940#[cfg(feature = "UIDropInteraction")]
1941impl UICollectionViewDropProposal {
1942    extern_methods!(
1943        #[unsafe(method(initWithDropOperation:))]
1944        #[unsafe(method_family = init)]
1945        pub unsafe fn initWithDropOperation(
1946            this: Allocated<Self>,
1947            operation: UIDropOperation,
1948        ) -> Retained<Self>;
1949
1950        #[unsafe(method(init))]
1951        #[unsafe(method_family = init)]
1952        pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>;
1953
1954        #[unsafe(method(new))]
1955        #[unsafe(method_family = new)]
1956        pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>;
1957    );
1958}
1959
1960extern_protocol!(
1961    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropcoordinator?language=objc)
1962    pub unsafe trait UICollectionViewDropCoordinator:
1963        NSObjectProtocol + MainThreadOnly
1964    {
1965        #[unsafe(method(items))]
1966        #[unsafe(method_family = none)]
1967        unsafe fn items(&self) -> Retained<NSArray<ProtocolObject<dyn UICollectionViewDropItem>>>;
1968
1969        #[unsafe(method(destinationIndexPath))]
1970        #[unsafe(method_family = none)]
1971        unsafe fn destinationIndexPath(&self) -> Option<Retained<NSIndexPath>>;
1972
1973        #[cfg(feature = "UIDropInteraction")]
1974        #[unsafe(method(proposal))]
1975        #[unsafe(method_family = none)]
1976        unsafe fn proposal(&self) -> Retained<UICollectionViewDropProposal>;
1977
1978        #[cfg(feature = "UIDragSession")]
1979        #[unsafe(method(session))]
1980        #[unsafe(method_family = none)]
1981        unsafe fn session(&self) -> Retained<ProtocolObject<dyn UIDropSession>>;
1982
1983        #[cfg(all(feature = "UIDragInteraction", feature = "UIDragItem"))]
1984        #[unsafe(method(dropItem:toPlaceholder:))]
1985        #[unsafe(method_family = none)]
1986        unsafe fn dropItem_toPlaceholder(
1987            &self,
1988            drag_item: &UIDragItem,
1989            placeholder: &UICollectionViewDropPlaceholder,
1990        ) -> Retained<ProtocolObject<dyn UICollectionViewDropPlaceholderContext>>;
1991
1992        #[cfg(all(feature = "UIDragInteraction", feature = "UIDragItem"))]
1993        #[unsafe(method(dropItem:toItemAtIndexPath:))]
1994        #[unsafe(method_family = none)]
1995        unsafe fn dropItem_toItemAtIndexPath(
1996            &self,
1997            drag_item: &UIDragItem,
1998            index_path: &NSIndexPath,
1999        ) -> Retained<ProtocolObject<dyn UIDragAnimating>>;
2000
2001        #[cfg(all(
2002            feature = "UIDragInteraction",
2003            feature = "UIDragItem",
2004            feature = "objc2-core-foundation"
2005        ))]
2006        #[unsafe(method(dropItem:intoItemAtIndexPath:rect:))]
2007        #[unsafe(method_family = none)]
2008        unsafe fn dropItem_intoItemAtIndexPath_rect(
2009            &self,
2010            drag_item: &UIDragItem,
2011            index_path: &NSIndexPath,
2012            rect: CGRect,
2013        ) -> Retained<ProtocolObject<dyn UIDragAnimating>>;
2014
2015        #[cfg(all(
2016            feature = "UIDragInteraction",
2017            feature = "UIDragItem",
2018            feature = "UITargetedDragPreview",
2019            feature = "UITargetedPreview"
2020        ))]
2021        #[unsafe(method(dropItem:toTarget:))]
2022        #[unsafe(method_family = none)]
2023        unsafe fn dropItem_toTarget(
2024            &self,
2025            drag_item: &UIDragItem,
2026            target: &UIDragPreviewTarget,
2027        ) -> Retained<ProtocolObject<dyn UIDragAnimating>>;
2028    }
2029);
2030
2031extern_class!(
2032    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewplaceholder?language=objc)
2033    #[unsafe(super(NSObject))]
2034    #[thread_kind = MainThreadOnly]
2035    #[derive(Debug, PartialEq, Eq, Hash)]
2036    pub struct UICollectionViewPlaceholder;
2037);
2038
2039unsafe impl NSObjectProtocol for UICollectionViewPlaceholder {}
2040
2041impl UICollectionViewPlaceholder {
2042    extern_methods!(
2043        #[unsafe(method(initWithInsertionIndexPath:reuseIdentifier:))]
2044        #[unsafe(method_family = init)]
2045        pub unsafe fn initWithInsertionIndexPath_reuseIdentifier(
2046            this: Allocated<Self>,
2047            insertion_index_path: &NSIndexPath,
2048            reuse_identifier: &NSString,
2049        ) -> Retained<Self>;
2050
2051        #[unsafe(method(init))]
2052        #[unsafe(method_family = init)]
2053        pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>;
2054
2055        #[unsafe(method(new))]
2056        #[unsafe(method_family = new)]
2057        pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>;
2058
2059        #[cfg(all(
2060            feature = "UICollectionViewCell",
2061            feature = "UIResponder",
2062            feature = "UIView",
2063            feature = "block2"
2064        ))]
2065        #[unsafe(method(cellUpdateHandler))]
2066        #[unsafe(method_family = none)]
2067        pub unsafe fn cellUpdateHandler(
2068            &self,
2069        ) -> *mut block2::Block<dyn Fn(NonNull<UICollectionViewCell>)>;
2070
2071        #[cfg(all(
2072            feature = "UICollectionViewCell",
2073            feature = "UIResponder",
2074            feature = "UIView",
2075            feature = "block2"
2076        ))]
2077        /// Setter for [`cellUpdateHandler`][Self::cellUpdateHandler].
2078        #[unsafe(method(setCellUpdateHandler:))]
2079        #[unsafe(method_family = none)]
2080        pub unsafe fn setCellUpdateHandler(
2081            &self,
2082            cell_update_handler: Option<&block2::Block<dyn Fn(NonNull<UICollectionViewCell>)>>,
2083        );
2084    );
2085}
2086
2087extern_class!(
2088    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropplaceholder?language=objc)
2089    #[unsafe(super(UICollectionViewPlaceholder, NSObject))]
2090    #[thread_kind = MainThreadOnly]
2091    #[derive(Debug, PartialEq, Eq, Hash)]
2092    pub struct UICollectionViewDropPlaceholder;
2093);
2094
2095unsafe impl NSObjectProtocol for UICollectionViewDropPlaceholder {}
2096
2097impl UICollectionViewDropPlaceholder {
2098    extern_methods!(
2099        #[cfg(all(
2100            feature = "UICollectionViewCell",
2101            feature = "UIDragPreviewParameters",
2102            feature = "UIPreviewParameters",
2103            feature = "UIResponder",
2104            feature = "UIView",
2105            feature = "block2"
2106        ))]
2107        #[unsafe(method(previewParametersProvider))]
2108        #[unsafe(method_family = none)]
2109        pub unsafe fn previewParametersProvider(
2110            &self,
2111        ) -> *mut block2::Block<dyn Fn(NonNull<UICollectionViewCell>) -> *mut UIDragPreviewParameters>;
2112
2113        #[cfg(all(
2114            feature = "UICollectionViewCell",
2115            feature = "UIDragPreviewParameters",
2116            feature = "UIPreviewParameters",
2117            feature = "UIResponder",
2118            feature = "UIView",
2119            feature = "block2"
2120        ))]
2121        /// Setter for [`previewParametersProvider`][Self::previewParametersProvider].
2122        #[unsafe(method(setPreviewParametersProvider:))]
2123        #[unsafe(method_family = none)]
2124        pub unsafe fn setPreviewParametersProvider(
2125            &self,
2126            preview_parameters_provider: Option<
2127                &block2::Block<
2128                    dyn Fn(NonNull<UICollectionViewCell>) -> *mut UIDragPreviewParameters,
2129                >,
2130            >,
2131        );
2132    );
2133}
2134
2135/// Methods declared on superclass `UICollectionViewPlaceholder`.
2136impl UICollectionViewDropPlaceholder {
2137    extern_methods!(
2138        #[unsafe(method(initWithInsertionIndexPath:reuseIdentifier:))]
2139        #[unsafe(method_family = init)]
2140        pub unsafe fn initWithInsertionIndexPath_reuseIdentifier(
2141            this: Allocated<Self>,
2142            insertion_index_path: &NSIndexPath,
2143            reuse_identifier: &NSString,
2144        ) -> Retained<Self>;
2145
2146        #[unsafe(method(init))]
2147        #[unsafe(method_family = init)]
2148        pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>;
2149
2150        #[unsafe(method(new))]
2151        #[unsafe(method_family = new)]
2152        pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>;
2153    );
2154}
2155
2156extern_protocol!(
2157    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropitem?language=objc)
2158    pub unsafe trait UICollectionViewDropItem: NSObjectProtocol + MainThreadOnly {
2159        #[cfg(feature = "UIDragItem")]
2160        #[unsafe(method(dragItem))]
2161        #[unsafe(method_family = none)]
2162        unsafe fn dragItem(&self) -> Retained<UIDragItem>;
2163
2164        #[unsafe(method(sourceIndexPath))]
2165        #[unsafe(method_family = none)]
2166        unsafe fn sourceIndexPath(&self) -> Option<Retained<NSIndexPath>>;
2167
2168        #[cfg(feature = "objc2-core-foundation")]
2169        #[unsafe(method(previewSize))]
2170        #[unsafe(method_family = none)]
2171        unsafe fn previewSize(&self) -> CGSize;
2172    }
2173);
2174
2175extern_protocol!(
2176    /// [Apple's documentation](https://developer.apple.com/documentation/uikit/uicollectionviewdropplaceholdercontext?language=objc)
2177    #[cfg(feature = "UIDragInteraction")]
2178    pub unsafe trait UICollectionViewDropPlaceholderContext:
2179        UIDragAnimating + MainThreadOnly
2180    {
2181        #[cfg(feature = "UIDragItem")]
2182        #[unsafe(method(dragItem))]
2183        #[unsafe(method_family = none)]
2184        unsafe fn dragItem(&self) -> Retained<UIDragItem>;
2185
2186        #[cfg(feature = "block2")]
2187        #[unsafe(method(commitInsertionWithDataSourceUpdates:))]
2188        #[unsafe(method_family = none)]
2189        unsafe fn commitInsertionWithDataSourceUpdates(
2190            &self,
2191            data_source_updates: &block2::Block<dyn Fn(NonNull<NSIndexPath>) + '_>,
2192        ) -> bool;
2193
2194        #[unsafe(method(deletePlaceholder))]
2195        #[unsafe(method_family = none)]
2196        unsafe fn deletePlaceholder(&self) -> bool;
2197
2198        #[unsafe(method(setNeedsCellUpdate))]
2199        #[unsafe(method_family = none)]
2200        unsafe fn setNeedsCellUpdate(&self);
2201    }
2202);
objc2_ui_kit/generated/UICollectionView.rs

objc2_ui_kit/generated/
UICollectionView.rs
