GEEKING

iOS/RobloxUI/Source/Components/GamesCollectionView.m

@@ -0,0 +1,200 @@
+//
+//  GamesCollectionView.m
+//  RobloxMobile
+//
+//  Created by alichtin on 6/2/14.
+//  Copyright (c) 2014 ROBLOX. All rights reserved.
+//
+
+#import "GamesCollectionView.h"
+#import "GameThumbnailCell.h"
+#import "RobloxNotifications.h"
+#import "RobloxData.h"
+#import "RBInfiniteCollectionView.h"
+#import "RobloxTheme.h"
+
+
+@interface GamesCollectionView () <RBInfiniteCollectionViewDelegate>
+
+@end
+
+@implementation GamesCollectionView
+{
+	RBInfiniteCollectionView* _collectionView;
+    
+    NSNumber* _playerID; // Some sorts require the player ID
+    NSNumber* _sortID;
+    NSNumber* _genreID;
+    NSString* _keywords;
+    NSMutableArray* _games;
+    
+    NSUInteger _numItemsInCollectionView;
+}
+
+- (instancetype)init
+{
+    self = [super init];
+    if(self)
+    {
+        _games = [[NSMutableArray alloc] init];
+        
+        self.backgroundColor = [UIColor clearColor];
+        
+        UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
+        [flowLayout setItemSize:[GameThumbnailCell getCellSize]];
+        [flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
+        [flowLayout setMinimumLineSpacing:6.0f]; //32.0f];
+        [flowLayout setMinimumInteritemSpacing:0.0f];
+        [flowLayout setSectionInset:UIEdgeInsetsMake(6,0,6,0)]; //(20, 20, 20, 20)];
+        
+        _collectionView = [[RBInfiniteCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:flowLayout];
+        [_collectionView registerNib:[UINib nibWithNibName:@"GameThumbnailCell" bundle: nil] forCellWithReuseIdentifier:@"ReuseCell"];
+        _collectionView.backgroundView = nil;
+        _collectionView.backgroundColor = [UIColor clearColor];
+        _collectionView.infiniteDelegate = self;
+        
+        [self addSubview:_collectionView];
+        
+        [self clearCollectionView];
+    }
+    return self;
+}
+
+- (instancetype) initWithFrame:(CGRect)frame {
+    if (self == [super initWithFrame:frame]) {
+        // init
+        self.backgroundColor = [UIColor clearColor];
+        
+        UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
+        [flowLayout setItemSize:[GameThumbnailCell getCellSize]];
+        [flowLayout setScrollDirection:UICollectionViewScrollDirectionVertical];
+        [flowLayout setMinimumLineSpacing:6.0f]; //32.0f];
+        [flowLayout setMinimumInteritemSpacing:0.0f];
+        [flowLayout setSectionInset:UIEdgeInsetsMake(6,0,6,0)]; //(20, 20, 20, 20)];
+        
+        _collectionView = [[RBInfiniteCollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:flowLayout];
+        [_collectionView registerNib:[UINib nibWithNibName:@"GameThumbnailCell" bundle: nil] forCellWithReuseIdentifier:@"ReuseCell"];
+        _collectionView.backgroundView = nil;
+        _collectionView.backgroundColor = [UIColor clearColor];
+        _collectionView.infiniteDelegate = self;
+        
+        [self addSubview:_collectionView];
+        
+        [self clearCollectionView];
+    }
+    
+    return self;
+}
+
+- (void) setFrame:(CGRect)frame
+{
+    [super setFrame:frame];
+    [_collectionView setFrame:self.bounds];
+}
+
+- (void) clearCollectionView
+{
+    [_games removeAllObjects];
+    [_collectionView reloadData];
+}
+
+- (void) loadGamesForKeywords:(NSString*)keywords
+{
+    if(_keywords == nil || ![_keywords isEqualToString:keywords])
+    {
+        _sortID = nil;
+        _keywords = keywords;
+        
+        [self clearCollectionView];
+    }
+    
+    [_collectionView loadElementsAsync];
+}
+
+- (void) loadGamesForSort:(NSNumber *)sortID playerID:(NSNumber *)playerID
+{
+    [self loadGamesForSort:sortID playerID:playerID genreID:nil];
+}
+
+- (void) loadGamesForSort:(NSNumber *)sortID playerID:(NSNumber *)playerID genreID:(NSNumber *)genreID {
+    if(_sortID == nil || ![_sortID isEqualToNumber:sortID])
+    {
+        _sortID = sortID;
+        _keywords = nil;
+        
+        [self clearCollectionView];
+    }
+    
+    if (_genreID == nil || ![_genreID isEqualToNumber:genreID]) {
+        _genreID = genreID;
+    }
+
+    if (_playerID == nil || ![_playerID isEqualToNumber:playerID]) {
+        _playerID = playerID;
+    }
+
+    [_collectionView loadElementsAsync];
+}
+
+#pragma mark -
+#pragma mark Infinite scroll delegates
+
+- (void) asyncRequestItemsForCollectionView:(RBInfiniteCollectionView*)collectionView numItemsToRequest:(NSUInteger)itemsToRequest completionHandler:(void(^)())completionHandler
+{
+    if(_collectionView.numItems > _games.count)
+    {
+        void(^block)(NSArray*) = ^(NSArray* games)
+        {
+            dispatch_async(dispatch_get_main_queue(), ^
+                           {
+                               [_games addObjectsFromArray:games];
+                               completionHandler();
+                           });
+        };
+        
+        // If _sortID is set, this collection view displays the games belonging to a sort
+        // If _keywords is set, this collection view is used to display search results
+        if(_sortID != nil)
+            [RobloxData fetchGameListWithSortID:_sortID genreID:_genreID playerID:_playerID fromIndex:_games.count numGames:itemsToRequest thumbSize:[RobloxTheme sizeGameCoverSquare] completion:block];
+        else // if(_keywords != nil)
+            [RobloxData searchGames:_keywords fromIndex:_games.count numGames:itemsToRequest thumbSize:[RobloxTheme sizeGameCoverSquare] completion:block];
+    }
+}
+
+- (NSUInteger)numItemsInInfiniteCollectionView:(RBInfiniteCollectionView*)collectionView
+{
+    return _games.count;
+}
+
+- (UICollectionViewCell*)infiniteCollectionView:(RBInfiniteCollectionView*)collectionView cellForItemAtIndexPath:(NSIndexPath*)indexPath;
+{
+    GameThumbnailCell *cell = [_collectionView dequeueReusableCellWithReuseIdentifier:@"ReuseCell" forIndexPath:indexPath];
+    if(indexPath.row < _games.count)
+    {
+        RBXGameData* gameData = _games[indexPath.row];
+        if([gameData isKindOfClass:[NSNull class]])
+            [cell setGameData:nil];
+        else
+            [cell setGameData:gameData];
+    }
+    else
+    {
+        [cell setGameData:nil];
+    }
+    
+    return cell;
+}
+
+- (void)infiniteCollectionView:(RBInfiniteCollectionView*)collectionView didSelectItemAtIndexPath:(NSIndexPath*)indexPath;
+{
+    if(indexPath.row < _games.count)
+    {
+        RBXGameData* gameData = _games[indexPath.row];
+        NSDictionary* userInfo = @{ @"gameData" : gameData,
+                                    @"gameIndex" : [NSNumber numberWithInteger:indexPath.row],
+                                    @"totalGames" : [NSNumber numberWithInteger:_games.count] };
+        [[NSNotificationCenter defaultCenter] postNotificationName:RBX_NOTIFY_GAME_SELECTED object:nil userInfo:userInfo];
+    }
+}
+
+@end