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/*****************************************************************************
* VLCLibraryAudioGroupDataSource.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 "VLCLibraryAudioGroupDataSource.h"
#import "extensions/NSPasteboardItem+VLCAdditions.h"
#import "main/VLCMain.h"
#import "library/VLCLibraryController.h"
#import "library/VLCLibraryDataTypes.h"
#import "library/VLCLibraryCollectionViewItem.h"
#import "library/VLCLibraryCollectionViewFlowLayout.h"
#import "library/VLCLibraryCollectionViewMediaItemListSupplementaryDetailView.h"
#import "library/VLCLibraryModel.h"
#import "library/VLCLibraryRepresentedItem.h"
#import "library/VLCLibraryWindow.h"
#import "library/audio-library/VLCLibraryAlbumTableCellView.h"
#import "library/audio-library/VLCLibraryAudioGroupTableHeaderView.h"
#import "views/VLCSubScrollView.h"
@interface VLCLibraryAudioGroupDataSource ()
{
id<VLCMediaLibraryAudioGroupProtocol> _representedAudioGroup;
}
@property (readwrite, atomic, strong) NSArray<VLCMediaLibraryAlbum *> *representedListOfAlbums;
@end
@implementation VLCLibraryAudioGroupDataSource
@synthesize currentParentType = _currentParentType;
+ (void)setupCollectionView:(NSCollectionView *)collectionView
{
[collectionView registerClass:VLCLibraryAudioGroupTableHeaderView.class
forSupplementaryViewOfKind:NSCollectionElementKindSectionHeader
withIdentifier:VLCLibraryAudioGroupTableHeaderViewIdentifier];
}
- (instancetype)init
{
self = [super init];
if (self) {
[self setup];
}
return self;
}
- (void)setup
{
[self addObserver:self forKeyPath:@"collectionViews" options:NSKeyValueObservingOptionNew context:nil];
[self addObserver:self forKeyPath:@"tableViews" options:NSKeyValueObservingOptionNew context:nil];
[self connect];
}
- (void)observeValueForKeyPath:(NSString *)keyPath
ofObject:(id)object
change:(NSDictionary *)change
context:(void *)context
{
if (object != self) {
return;
}
if ([keyPath isEqualToString:@"collectionViews"]) {
[self reloadCollectionViews];
} else if ([keyPath isEqualToString:@"tableViews"]) {
[self reloadTableViews];
}
}
- (void)connect
{
NSNotificationCenter * const notificationCenter = NSNotificationCenter.defaultCenter;
[notificationCenter addObserver:self
selector:@selector(libraryModelAudioMediaItemsReset:)
name:VLCLibraryModelAudioMediaListReset
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelAudioMediaItemUpdated:)
name:VLCLibraryModelAudioMediaItemUpdated
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelAudioMediaItemDeleted:)
name:VLCLibraryModelAudioMediaItemDeleted
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelAlbumsReset:)
name:VLCLibraryModelAlbumListReset
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelAlbumUpdated:)
name:VLCLibraryModelAlbumUpdated
object:nil];
[notificationCenter addObserver:self
selector:@selector(libraryModelAlbumDeleted:)
name:VLCLibraryModelAlbumDeleted
object:nil];
[self reloadData];
}
- (void)disconnect
{
[NSNotificationCenter.defaultCenter removeObserver:self];
}
- (NSInteger)rowContainingMediaItem:(id<VLCMediaLibraryItemProtocol>)libraryItem
{
return [self.representedAudioGroup.albums indexOfObjectPassingTest:^BOOL(VLCMediaLibraryAlbum * const album, const NSUInteger __unused idx, BOOL * const __unused stop) {
return [album.mediaItems indexOfObjectPassingTest:^BOOL(VLCMediaLibraryMediaItem * const item, const NSUInteger __unused idx, BOOL * const __unused stop) {
return item.libraryID == libraryItem.libraryID;
}] != NSNotFound;
}];
}
- (void)handleAlbumUpdateInRow:(NSInteger)row
{
NSParameterAssert(row >= 0 && (NSUInteger)row < self.representedListOfAlbums.count);
NSIndexSet * const indexSet = [NSIndexSet indexSetWithIndex:row];
NSIndexSet * const columnIndexSet = [NSIndexSet indexSetWithIndex:0];
NSSet * const indexPaths = [NSSet setWithObject:[NSIndexPath indexPathForItem:row inSection:0]];
[self performActionOnTableViews:^(NSTableView * const tableView){
[tableView reloadDataForRowIndexes:indexSet columnIndexes:columnIndexSet];
} onCollectionViews:^(NSCollectionView * const collectionView){
[collectionView reloadItemsAtIndexPaths:indexPaths];
}];
}
- (void)handleLibraryItemChange:(id<VLCMediaLibraryItemProtocol>)item
{
NSParameterAssert(item != nil);
const NSInteger row = [self rowContainingMediaItem:item];
if (row == NSNotFound) {
NSLog(@"VLCLibraryAudioGroupDataSource: Unable to find row for library item, can't change");
return;
}
[self handleAlbumUpdateInRow:row];
}
- (void)performActionOnTableViews:(void (^)(NSTableView *))tableViewAction
onCollectionViews:(void (^)(NSCollectionView *))collectionViewAction
{
NSParameterAssert(tableViewAction != nil && collectionViewAction != nil);
NSArray<NSTableView *> * const tableViews = self.tableViews;
for (NSTableView * const tableView in tableViews) {
tableViewAction(tableView);
}
NSArray<NSCollectionView *> * const collectionViews = self.collectionViews;
for (NSCollectionView * const collectionView in collectionViews) {
collectionViewAction(collectionView);
}
}
- (void)libraryModelAudioMediaItemsReset:(NSNotification *)notification
{
[self updateRepresentedListOfAlbums];
}
- (void)libraryModelAudioMediaItemUpdated:(NSNotification *)notification
{
[self handleLibraryItemChange:notification.object];
}
- (void)libraryModelAudioMediaItemDeleted:(NSNotification *)notification
{
[self handleLibraryItemChange:notification.object];
}
- (void)libraryModelAlbumsReset:(NSNotification *)notification
{
[self updateRepresentedListOfAlbums];
}
- (void)libraryModelAlbumUpdated:(NSNotification *)notification
{
const NSInteger row = [self rowForLibraryItem:notification.object];
if (row == NSNotFound) {
NSLog(@"VLCLibraryAudioGroupDataSource: Unable to find row for library item, can't update");
return;
}
[self handleAlbumUpdateInRow:row];
}
- (void)libraryModelAlbumDeleted:(NSNotification *)notification
{
const NSInteger row = [self rowForLibraryItem:notification.object];
if (row == NSNotFound) {
NSLog(@"VLCLibraryAudioGroupDataSource: Unable to find row for library item, can't delete");
return;
}
NSIndexSet * const indexSet = [NSIndexSet indexSetWithIndex:row];
NSSet * const indexPaths = [NSSet setWithObject:[NSIndexPath indexPathForItem:row inSection:0]];
[self performActionOnTableViews:^(NSTableView * const tableView){
[tableView removeRowsAtIndexes:indexSet withAnimation:NSTableViewAnimationSlideUp];
} onCollectionViews:^(NSCollectionView * const collectionView){
[collectionView deleteItemsAtIndexPaths:indexPaths];
}];
}
- (void)reloadTableViews
{
NSArray<NSTableView *> * const tableViews = self.tableViews;
for (NSTableView * const tableView in tableViews) {
[tableView reloadData];
}
}
- (void)reloadCollectionViews
{
NSArray<NSCollectionView *> * const collectionViews = self.collectionViews;
for (NSCollectionView * const collectionView in collectionViews) {
NSCollectionViewLayout * const collectionViewLayout = collectionView.collectionViewLayout;
if ([collectionViewLayout isKindOfClass:VLCLibraryCollectionViewFlowLayout.class]) {
[(VLCLibraryCollectionViewFlowLayout *)collectionViewLayout resetLayout];
}
[collectionView reloadData];
}
}
- (void)reloadData
{
[self reloadTableViews];
[self reloadCollectionViews];
}
- (void)updateRepresentedListOfAlbums
{
dispatch_async(dispatch_get_global_queue(QOS_CLASS_USER_INTERACTIVE, 0), ^{
VLCLibraryModel * const libraryModel = VLCMain.sharedInstance.libraryController.libraryModel;
if (self.representedAudioGroup == nil || self.currentParentType == VLCMediaLibraryParentGroupTypeUnknown) {
self.representedListOfAlbums = libraryModel.listOfAlbums;
} else if (self.representedAudioGroup.albums.count == 0) {
dispatch_sync(dispatch_get_main_queue(), ^{
self.representedListOfAlbums = [libraryModel listAlbumsOfParentType:self.currentParentType forID:self.representedAudioGroup.libraryID];
});
} else {
self.representedListOfAlbums = self.representedAudioGroup.albums;
}
dispatch_async(dispatch_get_main_queue(), ^{
[self reloadData];
});
});
}
- (id<VLCMediaLibraryAudioGroupProtocol>)representedAudioGroup
{
@synchronized (self) {
return _representedAudioGroup;
}
}
- (void)setRepresentedAudioGroup:(VLCAbstractMediaLibraryAudioGroup *)representedAudioGroup
{
@synchronized (self) {
if (_representedAudioGroup == representedAudioGroup) {
return;
}
_representedAudioGroup = representedAudioGroup;
_currentParentType = representedAudioGroup.matchingParentType;
[self updateRepresentedListOfAlbums];
}
}
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView
{
if (self.representedListOfAlbums != nil) {
return self.representedListOfAlbums.count;
}
return 0;
}
- (id<VLCMediaLibraryItemProtocol>)libraryItemAtRow:(NSInteger)row
forTableView:(NSTableView *)tableView
{
if (row < 0 || (NSUInteger)row >= self.representedListOfAlbums.count) {
return nil;
}
return self.representedListOfAlbums[row];
}
- (NSInteger)rowForLibraryItem:(id<VLCMediaLibraryItemProtocol>)libraryItem
{
if (libraryItem == nil) {
return NSNotFound;
}
NSArray<id<VLCMediaLibraryItemProtocol>> * const libraryItems = self.representedListOfAlbums;
const NSUInteger itemCount = libraryItems.count;
for (NSUInteger i = 0; i < itemCount; ++i) {
const id<VLCMediaLibraryItemProtocol> collectionItem = [libraryItems objectAtIndex:i];
if (collectionItem.libraryID == libraryItem.libraryID) {
return i;
}
}
return NSNotFound;
}
- (NSInteger)collectionView:(NSCollectionView *)collectionView
numberOfItemsInSection:(NSInteger)section
{
return self.representedListOfAlbums.count;
}
- (NSInteger)numberOfSectionsInCollectionView:(NSCollectionView *)collectionView
{
return 1;
}
- (NSCollectionViewItem *)collectionView:(NSCollectionView *)collectionView
itemForRepresentedObjectAtIndexPath:(NSIndexPath *)indexPath
{
VLCLibraryCollectionViewItem * const viewItem = [collectionView makeItemWithIdentifier:VLCLibraryCellIdentifier forIndexPath:indexPath];
const id<VLCMediaLibraryItemProtocol> libraryItem = [self libraryItemAtIndexPath:indexPath forCollectionView:collectionView];
VLCLibraryRepresentedItem * const representedItem = [[VLCLibraryRepresentedItem alloc] initWithItem:libraryItem parentType:_currentParentType];
viewItem.representedItem = representedItem;
return viewItem;
}
- (NSView *)collectionView:(NSCollectionView *)collectionView
viewForSupplementaryElementOfKind:(NSCollectionViewSupplementaryElementKind)kind
atIndexPath:(NSIndexPath *)indexPath
{
if ([kind isEqualToString:VLCLibraryCollectionViewMediaItemListSupplementaryDetailViewKind]) {
NSArray<VLCMediaLibraryAlbum *> * const albums = self.representedListOfAlbums;
if (albums == nil || albums.count == 0 || indexPath.item < 0 || (NSUInteger)indexPath.item >= albums.count) {
return nil;
}
VLCLibraryCollectionViewMediaItemListSupplementaryDetailView * const albumSupplementaryDetailView =
[collectionView makeSupplementaryViewOfKind:kind
withIdentifier:VLCLibraryCollectionViewMediaItemListSupplementaryDetailViewKind
forIndexPath:indexPath];
VLCMediaLibraryAlbum * const album = albums[indexPath.item];
VLCLibraryRepresentedItem * const representedItem = [[VLCLibraryRepresentedItem alloc] initWithItem:album parentType:_currentParentType];
albumSupplementaryDetailView.representedItem = representedItem;
albumSupplementaryDetailView.selectedItem = [collectionView itemAtIndex:indexPath.item];
albumSupplementaryDetailView.internalScrollView.scrollParentY = YES;
return albumSupplementaryDetailView;
} else if ([kind isEqualToString:NSCollectionElementKindSectionHeader]) {
VLCLibraryAudioGroupTableHeaderView * const headerView = [collectionView makeSupplementaryViewOfKind:kind withIdentifier:VLCLibraryAudioGroupTableHeaderViewIdentifier forIndexPath:indexPath];
VLCLibraryRepresentedItem * const representedItem = [[VLCLibraryRepresentedItem alloc] initWithItem:_representedAudioGroup parentType:_currentParentType];
headerView.representedItem = representedItem;
return headerView;
}
return nil;
}
- (id<NSPasteboardWriting>)tableView:(NSTableView *)tableView pasteboardWriterForRow:(NSInteger)row
{
const id<VLCMediaLibraryItemProtocol> libraryItem = [self libraryItemAtRow:row forTableView:tableView];
return [NSPasteboardItem pasteboardItemWithLibraryItem:libraryItem];
}
- (id<VLCMediaLibraryItemProtocol>)libraryItemAtIndexPath:(NSIndexPath *)indexPath
forCollectionView:(NSCollectionView *)collectionView
{
const NSUInteger indexPathItem = indexPath.item;
if (indexPathItem < 0 || indexPathItem >= self.representedListOfAlbums.count) {
return nil;
}
return self.representedListOfAlbums[indexPathItem];
}
- (NSIndexPath *)indexPathForLibraryItem:(id<VLCMediaLibraryItemProtocol>)libraryItem
{
if (libraryItem == nil) {
return nil;
}
const NSInteger arrayIdx = [self rowForLibraryItem:libraryItem];
return [NSIndexPath indexPathForItem:arrayIdx 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.currentParentType];
[representedItems addObject:representedItem];
}
return representedItems;
}
- (NSString *)supplementaryDetailViewKind
{
return VLCLibraryCollectionViewMediaItemListSupplementaryDetailViewKind;
}
@end