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/*****************************************************************************
* VLCLibraryHomeViewVideoContainerViewDataSource.m: MacOS X interface module
*****************************************************************************
* Copyright (C) 2022 VLC authors and VideoLAN
*
* Authors: Claudio Cambra <developer@claudiocambra.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#import "VLCLibraryHomeViewVideoContainerViewDataSource.h"
#import "library/VLCLibraryCarouselViewItemView.h"
#import "library/VLCLibraryCollectionViewFlowLayout.h"
#import "library/VLCLibraryCollectionViewItem.h"
#import "library/VLCLibraryCollectionViewMediaItemSupplementaryDetailView.h"
#import "library/VLCLibraryCollectionViewSupplementaryElementView.h"
#import "library/VLCLibraryController.h"
#import "library/VLCLibraryDataTypes.h"
#import "library/VLCLibraryImageCache.h"
#import "library/VLCLibraryModel.h"
#import "library/VLCLibraryRepresentedItem.h"
#import "library/VLCLibraryUIUnits.h"
#import "library/home-library/VLCLibraryHomeViewVideoCarouselContainerView.h"
#import "library/home-library/VLCLibraryHomeViewVideoGridContainerView.h"
#import "library/video-library/VLCLibraryVideoGroupDescriptor.h"
#import "main/VLCMain.h"
NSString * const VLCLibraryVideoCollectionViewDataSourceDisplayedCollectionChangedNotification = @"VLCLibraryVideoCollectionViewDataSourceDisplayedCollectionChangedNotification";
@interface VLCLibraryHomeViewVideoContainerViewDataSource ()
{
VLCLibraryCollectionViewFlowLayout *_collectionViewFlowLayout;
VLCLibraryModel *_libraryModel;
}
@property (readwrite, atomic) NSArray *collectionArray;
@end
@implementation VLCLibraryHomeViewVideoContainerViewDataSource
- (instancetype)init
{
self = [super init];
if(self) {
_libraryModel = VLCMain.sharedInstance.libraryController.libraryModel;
self.collectionArray = [NSArray array];
[self connect];
}
return self;
}
- (NSUInteger)indexOfMediaItemInCollection:(const int64_t)libraryId
{
return [self.collectionArray indexOfObjectPassingTest:^BOOL(VLCMediaLibraryMediaItem * const findMediaItem, const NSUInteger __unused idx, BOOL * const __unused stop) {
NSAssert(findMediaItem != nil, @"Collection should not contain nil media items");
return findMediaItem.libraryID == libraryId;
}];
}
- (void)libraryModelVideoListReset:(NSNotification * const)aNotification
{
if (_groupDescriptor.group != VLCMediaLibraryParentGroupTypeVideoLibrary) {
return;
}
[self reloadData];
}
- (void)libraryModelVideoItemUpdated:(NSNotification * const)aNotification
{
if (_groupDescriptor.group != VLCMediaLibraryParentGroupTypeVideoLibrary) {
return;
}
NSParameterAssert(aNotification);
VLCMediaLibraryMediaItem *notificationMediaItem = aNotification.object;
NSAssert(notificationMediaItem != nil, @"Media item updated notification should carry valid media item");
[self reloadDataForMediaItem:notificationMediaItem];
}
- (void)libraryModelVideoItemDeleted:(NSNotification * const)aNotification
{
if (_groupDescriptor.group != VLCMediaLibraryParentGroupTypeVideoLibrary) {
return;
}
NSParameterAssert(aNotification);
VLCMediaLibraryMediaItem *notificationMediaItem = aNotification.object;
NSAssert(notificationMediaItem != nil, @"Media item deleted notification should carry valid media item");
[self deleteDataForMediaItem:notificationMediaItem];
}
- (void)libraryModelRecentsListReset:(NSNotification * const)aNotification
{
if (_groupDescriptor.group != VLCMediaLibraryParentGroupTypeRecentVideos) {
return;
}
[self reloadData];
}
- (void)libraryModelRecentsItemUpdated:(NSNotification * const)aNotification
{
if (_groupDescriptor.group != VLCMediaLibraryParentGroupTypeRecentVideos) {
return;
}
NSParameterAssert(aNotification);
VLCMediaLibraryMediaItem *notificationMediaItem = aNotification.object;
NSAssert(notificationMediaItem != nil, @"Media item updated notification should carry valid media item");
[self reloadDataForMediaItem:notificationMediaItem];
}
- (void)libraryModelRecentsItemDeleted:(NSNotification * const)aNotification
{
if (_groupDescriptor.group != VLCMediaLibraryParentGroupTypeRecentVideos) {
return;
}
NSParameterAssert(aNotification);
VLCMediaLibraryMediaItem *notificationMediaItem = aNotification.object;
NSAssert(notificationMediaItem != nil, @"Media item deleted notification should carry valid media item");
[self deleteDataForMediaItem:notificationMediaItem];
}
- (void)connect
{
NSNotificationCenter * const notificationCenter = NSNotificationCenter.defaultCenter;
[notificationCenter addObserver:self
selector:@selector(libraryModelVideoListReset:)
name:VLCLibraryModelVideoMediaListReset
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelVideoItemUpdated:)
name:VLCLibraryModelVideoMediaItemUpdated
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelVideoItemDeleted:)
name:VLCLibraryModelVideoMediaItemDeleted
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelRecentsListReset:)
name:VLCLibraryModelRecentsMediaListReset
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelRecentsItemUpdated:)
name:VLCLibraryModelRecentsMediaItemUpdated
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelRecentsItemDeleted:)
name:VLCLibraryModelRecentsMediaItemDeleted
object:nil];
[self reloadData];
}
- (void)disconnect
{
[NSNotificationCenter.defaultCenter removeObserver:self];
}
- (void)reloadData
{
if((self.collectionView == nil && self.carouselView == nil) || !_groupDescriptor) {
NSLog(@"Null collection view/carousel view or video group descriptor");
return;
}
dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0), ^{
NSArray *newCollectionArray = nil;
switch(self->_groupDescriptor.group) {
case VLCMediaLibraryParentGroupTypeVideoLibrary:
newCollectionArray = self->_libraryModel.listOfVideoMedia;
break;
case VLCMediaLibraryParentGroupTypeRecentVideos:
newCollectionArray = self->_libraryModel.listOfRecentMedia;
break;
default:
return;
}
dispatch_async(dispatch_get_main_queue(), ^{
self.collectionArray = newCollectionArray;
[self.collectionView reloadData];
[self.carouselView reloadData];
[NSNotificationCenter.defaultCenter postNotificationName:VLCLibraryVideoCollectionViewDataSourceDisplayedCollectionChangedNotification
object:self];
});
});
}
- (void)reloadDataForMediaItem:(VLCMediaLibraryMediaItem * const)mediaItem
{
const NSUInteger mediaItemIndex = [self indexOfMediaItemInCollection:mediaItem.libraryID];
if (mediaItemIndex == NSNotFound) {
return;
}
NSMutableArray * const mutableCollectionCopy = [self.collectionArray mutableCopy];
[mutableCollectionCopy replaceObjectAtIndex:mediaItemIndex withObject:mediaItem];
self.collectionArray = [mutableCollectionCopy copy];
NSIndexPath * const indexPath = [NSIndexPath indexPathForItem:mediaItemIndex inSection:0];
[self.collectionView reloadItemsAtIndexPaths:[NSSet setWithObject:indexPath]];
[self.carouselView reloadData];
[NSNotificationCenter.defaultCenter postNotificationName:VLCLibraryVideoCollectionViewDataSourceDisplayedCollectionChangedNotification
object:self];
}
- (void)deleteDataForMediaItem:(VLCMediaLibraryMediaItem * const)mediaItem
{
NSUInteger mediaItemIndex = [self indexOfMediaItemInCollection:mediaItem.libraryID];
if (mediaItemIndex == NSNotFound) {
return;
}
NSMutableArray * const mutableCollectionCopy = [self.collectionArray mutableCopy];
[mutableCollectionCopy removeObjectAtIndex:mediaItemIndex];
self.collectionArray = [mutableCollectionCopy copy];
NSIndexPath * const indexPath = [NSIndexPath indexPathForItem:mediaItemIndex inSection:0];
[self.collectionView deleteItemsAtIndexPaths:[NSSet setWithObject:indexPath]];
[self.carouselView reloadData];
[NSNotificationCenter.defaultCenter postNotificationName:VLCLibraryVideoCollectionViewDataSourceDisplayedCollectionChangedNotification
object:self];
}
- (void)setGroupDescriptor:(VLCLibraryVideoCollectionViewGroupDescriptor *)groupDescriptor
{
if(!groupDescriptor) {
NSLog(@"Invalid group descriptor");
return;
}
_groupDescriptor = groupDescriptor;
[self reloadData];
}
- (void)setup
{
_collectionViewFlowLayout = _collectionView.collectionViewLayout;
self.collectionView.dataSource = self;
self.carouselView.dataSource = self;
[self.collectionView registerClass:[VLCLibraryCollectionViewItem class]
forItemWithIdentifier:VLCLibraryCellIdentifier];
[self.collectionView registerClass:[VLCLibraryCollectionViewSupplementaryElementView class]
forSupplementaryViewOfKind:NSCollectionElementKindSectionHeader
withIdentifier:VLCLibrarySupplementaryElementViewIdentifier];
NSNib * const mediaItemSupplementaryDetailView = [[NSNib alloc] initWithNibNamed:@"VLCLibraryCollectionViewMediaItemSupplementaryDetailView" bundle:nil];
[self.collectionView registerNib:mediaItemSupplementaryDetailView
forSupplementaryViewOfKind:VLCLibraryCollectionViewMediaItemSupplementaryDetailViewKind
withIdentifier:VLCLibraryCollectionViewMediaItemSupplementaryDetailViewIdentifier];
}
- (NSInteger)numberOfSectionsInCollectionView:(NSCollectionView *)collectionView
{
return 1;
}
- (NSInteger)collectionView:(NSCollectionView *)collectionView
numberOfItemsInSection:(NSInteger)section
{
if (!_libraryModel) {
return 0;
}
return self.collectionArray.count;
}
- (NSCollectionViewItem *)collectionView:(NSCollectionView *)collectionView
itemForRepresentedObjectAtIndexPath:(NSIndexPath *)indexPath
{
VLCLibraryCollectionViewItem * const viewItem = [collectionView makeItemWithIdentifier:VLCLibraryCellIdentifier forIndexPath:indexPath];
const id<VLCMediaLibraryItemProtocol> item = self.collectionArray[indexPath.item];
VLCLibraryRepresentedItem * const representedItem = [[VLCLibraryRepresentedItem alloc] initWithItem:item parentType:self.groupDescriptor.group];
viewItem.representedItem = representedItem;
return viewItem;
}
- (NSView *)collectionView:(NSCollectionView *)collectionView
viewForSupplementaryElementOfKind:(NSCollectionViewSupplementaryElementKind)kind
atIndexPath:(NSIndexPath *)indexPath
{
if([kind isEqualToString:NSCollectionElementKindSectionHeader]) {
VLCLibraryCollectionViewSupplementaryElementView *sectionHeadingView = [collectionView makeSupplementaryViewOfKind:kind
withIdentifier:VLCLibrarySupplementaryElementViewIdentifier
forIndexPath:indexPath];
sectionHeadingView.stringValue = _groupDescriptor.name;
return sectionHeadingView;
} else if ([kind isEqualToString:VLCLibraryCollectionViewMediaItemSupplementaryDetailViewKind]) {
VLCLibraryCollectionViewMediaItemSupplementaryDetailView * const mediaItemSupplementaryDetailView = [collectionView makeSupplementaryViewOfKind:kind withIdentifier:VLCLibraryCollectionViewMediaItemSupplementaryDetailViewKind forIndexPath:indexPath];
const id<VLCMediaLibraryItemProtocol> item = self.collectionArray[indexPath.item];
VLCLibraryRepresentedItem * const representedItem = [[VLCLibraryRepresentedItem alloc] initWithItem:item parentType:self.groupDescriptor.group];
mediaItemSupplementaryDetailView.representedItem = representedItem;
mediaItemSupplementaryDetailView.selectedItem = [collectionView itemAtIndexPath:indexPath];
VLCLibraryCollectionViewFlowLayout *flowLayout = (VLCLibraryCollectionViewFlowLayout*)collectionView.collectionViewLayout;
if (flowLayout != nil) {
mediaItemSupplementaryDetailView.layoutScrollDirection = flowLayout.scrollDirection;
}
return mediaItemSupplementaryDetailView;
}
return nil;
}
- (id<VLCMediaLibraryItemProtocol>)libraryItemAtIndexPath:(NSIndexPath *)indexPath
forCollectionView:(NSCollectionView *)collectionView
{
const NSUInteger indexPathItem = indexPath.item;
if (indexPathItem < 0 || indexPathItem >= self.collectionArray.count) {
return nil;
}
return self.collectionArray[indexPath.item];
}
- (NSIndexPath *)indexPathForLibraryItem:(id<VLCMediaLibraryItemProtocol>)libraryItem
{
if (libraryItem == nil) {
return nil;
}
const NSUInteger libraryItemIndex = [self indexOfMediaItemInCollection:libraryItem.libraryID];
if (libraryItemIndex == NSNotFound) {
return nil;
}
return [NSIndexPath indexPathForItem:libraryItemIndex inSection:0];
}
- (NSArray<VLCLibraryRepresentedItem *> *)representedItemsAtIndexPaths:(NSSet<NSIndexPath *> *const)indexPaths
forCollectionView:(NSCollectionView *)collectionView
{
NSMutableArray<VLCLibraryRepresentedItem *> * const representedItems =
[NSMutableArray arrayWithCapacity:indexPaths.count];
for (NSIndexPath * const indexPath in indexPaths) {
const id<VLCMediaLibraryItemProtocol> libraryItem =
[self libraryItemAtIndexPath:indexPath forCollectionView:collectionView];
VLCLibraryRepresentedItem * const representedItem =
[[VLCLibraryRepresentedItem alloc] initWithItem:libraryItem
parentType:self.groupDescriptor.group];
[representedItems addObject:representedItem];
}
return representedItems;
}
// pragma mark: iCarouselDataSource methods
- (NSInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
if (self.collectionArray == nil) {
return 0;
}
return self.collectionArray.count;
}
- (NSView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSInteger)index reusingView:(NSView *)view
{
VLCLibraryCarouselViewItemView *carouselItemView = (VLCLibraryCarouselViewItemView *)view;
if (carouselItemView == nil) {
const NSRect itemFrame = NSMakeRect(0,
0,
VLCLibraryUIUnits.carouselViewVideoItemViewWidth,
VLCLibraryUIUnits.carouselViewItemViewHeight);
carouselItemView = [VLCLibraryCarouselViewItemView fromNibWithOwner:self];
carouselItemView.frame = itemFrame;
}
const id<VLCMediaLibraryItemProtocol> libraryItem = self.collectionArray[index];
VLCLibraryRepresentedItem * const representedItem =
[[VLCLibraryRepresentedItem alloc] initWithItem:libraryItem
parentType:self.groupDescriptor.group];
carouselItemView.representedItem = representedItem;
return carouselItemView;
}
- (NSString *)supplementaryDetailViewKind
{
return VLCLibraryCollectionViewMediaItemSupplementaryDetailViewKind;
}
@end