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+/*****************************************************************************
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+ * VLCBoxCollectionViewController.m
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+ * VLC for iOS
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+ *****************************************************************************
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+ * Copyright (c) 2014-2015 VideoLAN. All rights reserved.
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+ * $Id$
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+ *
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+ * Authors: Carola Nitz <nitz.carola # googlemail.com>
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+ * Felix Paul Kühne <fkuehne # videolan.org>
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+ *
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+ * Refer to the COPYING file of the official project for license.
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+ *****************************************************************************/
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+
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+#import "VLCBoxCollectionViewController.h"
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+#import "VLCBoxController.h"
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+#import <SSKeychain/SSKeychain.h>
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+#import "VLCPlaybackController.h"
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+
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+@interface VLCBoxCollectionViewController () <VLCCloudStorageDelegate, NSURLConnectionDataDelegate>
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+{
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+ BoxFile *_selectedFile;
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+ VLCBoxController *_boxController;
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+ NSArray *_listOfFiles;
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+}
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+@end
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+
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+@implementation VLCBoxCollectionViewController
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+
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+- (instancetype)initWithPath:(NSString *)path
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+{
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+ self = [super initWithNibName:@"VLCRemoteBrowsingCollectionViewController" bundle:nil];
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+
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+ if (self) {
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+ self.currentPath = path;
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+ }
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+ return self;
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+}
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+
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+- (void)dealloc
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+{
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+ [[NSNotificationCenter defaultCenter] removeObserver:self];
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+}
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+
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+- (void)viewDidLoad {
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+ [super viewDidLoad];
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+
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+ _boxController = [VLCBoxController sharedInstance];
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+ self.controller = _boxController;
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+ self.controller.delegate = self;
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+
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+ self.title = @"Box";
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+
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+ NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
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+ [defaultCenter addObserver:self
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+ selector:@selector(boxApiTokenDidRefresh)
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+ name:BoxOAuth2SessionDidRefreshTokensNotification
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+ object:[BoxSDK sharedSDK].OAuth2Session];
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+
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+ [defaultCenter addObserver:self
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+ selector:@selector(boxApiTokenDidRefresh)
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+ name:BoxOAuth2SessionDidBecomeAuthenticatedNotification
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+ object:[BoxSDK sharedSDK].OAuth2Session];
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+}
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+
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+- (void)viewWillAppear:(BOOL)animated
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+{
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+ [super viewWillAppear:animated];
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+
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+ _boxController = [VLCBoxController sharedInstance];
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+ self.controller = _boxController;
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+ self.controller.delegate = self;
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+
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+ if (!_listOfFiles || _listOfFiles.count == 0)
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+ [self requestInformationForCurrentPath];
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+}
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+
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+- (void)viewWillDisappear:(BOOL)animated
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+{
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+ [super viewWillDisappear:animated];
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+
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+ if ([UIApplication sharedApplication].delegate.window.rootViewController.presentedViewController == nil) {
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+ [_boxController stopSession];
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+ [self.collectionView reloadData];
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+ }
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+}
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+
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+- (void)mediaListUpdated
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+{
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+ _listOfFiles = [[VLCBoxController sharedInstance].currentListFiles copy];
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+ [self.collectionView performSelectorOnMainThread:@selector(reloadData) withObject:nil waitUntilDone:NO];
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+}
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+
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+- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
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+{
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+ VLCCloudStorageCollectionViewCell *cell = (VLCCloudStorageCollectionViewCell *)[collectionView dequeueReusableCellWithReuseIdentifier:VLCRemoteBrowsingTVCellIdentifier forIndexPath:indexPath];
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+
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+ NSUInteger index = indexPath.row;
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+ if (_listOfFiles) {
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+ if (index < _listOfFiles.count) {
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+ cell.boxFile = _listOfFiles[index];
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+ }
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+ }
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+
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+ return cell;
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+}
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+
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+- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
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+{
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+ return _listOfFiles.count;
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+}
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+
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+- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
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+{
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+ if (indexPath.row >= _listOfFiles.count)
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+ return;
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+
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+ _selectedFile = _listOfFiles[indexPath.row];
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+ if (![_selectedFile.type isEqualToString:@"folder"])
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+ [self streamFile:(BoxFile *)_selectedFile];
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+ else {
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+ /* dive into subdirectory */
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+ NSString *path = self.currentPath;
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+ if (![path isEqualToString:@""])
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+ path = [path stringByAppendingString:@"/"];
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+ path = [path stringByAppendingString:_selectedFile.modelID];
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+
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+ VLCBoxCollectionViewController *targetViewController = [[VLCBoxCollectionViewController alloc] initWithPath:path];
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+ [self.navigationController pushViewController:targetViewController animated:YES];
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+ }
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+}
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+
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+
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+- (void)streamFile:(BoxFile *)file
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+{
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+ /* the Box API requires us to set an HTTP header to get the actual URL:
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+ * curl -L https://api.box.com/2.0/files/FILE_ID/content -H "Authorization: Bearer ACCESS_TOKEN"
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+ *
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+ * ... however, libvlc does not support setting custom HTTP headers, so we are resolving the redirect ourselves with a NSURLConnection
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+ * and pass the final location to libvlc, which does not require a custom HTTP header */
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+
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+ NSURL *baseURL = [[[BoxSDK sharedSDK] filesManager] URLWithResource:@"files"
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+ ID:file.modelID
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+ subresource:@"content"
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+ subID:nil];
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+
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+ NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:baseURL
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+ cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
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+ timeoutInterval:60];
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+
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+ [urlRequest setValue:[NSString stringWithFormat:@"Bearer %@", [BoxSDK sharedSDK].OAuth2Session.accessToken] forHTTPHeaderField:@"Authorization"];
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+
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+ NSURLConnection *theTestConnection = [[NSURLConnection alloc] initWithRequest:urlRequest delegate:self];
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+ [theTestConnection start];
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+}
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+
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+- (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response
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+{
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+ if (response != nil) {
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+ /* we have 1 redirect from the original URL, so as soon as we'd do that,
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+ * we grab the URL and cancel the connection */
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+ NSURL *theActualURL = request.URL;
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+
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+ [connection cancel];
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+
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+ /* now ask VLC to stream the URL we were just passed */
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+ VLCPlaybackController *vpc = [VLCPlaybackController sharedInstance];
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+ [vpc playURL:theActualURL successCallback:nil errorCallback:nil];
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+
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+ VLCFullscreenMovieTVViewController *movieVC = [VLCFullscreenMovieTVViewController fullscreenMovieTVViewController];
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+ [self presentViewController:movieVC
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+ animated:YES
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+ completion:nil];
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+ }
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+
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+ return request;
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+}
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+
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+#pragma mark - BoxAuthorizationViewControllerDelegate
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+
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+- (void)boxApiTokenDidRefresh
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+{
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+ NSString *token = [BoxSDK sharedSDK].OAuth2Session.refreshToken;
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+ [SSKeychain setPassword:token forService:kVLCBoxService account:kVLCBoxAccount];
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+ NSUbiquitousKeyValueStore *ubiquitousStore = [NSUbiquitousKeyValueStore defaultStore];
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+ [ubiquitousStore setString:token forKey:kVLCStoreBoxCredentials];
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+ [ubiquitousStore synchronize];
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+ self.authorizationInProgress = YES;
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+ [self updateViewAfterSessionChange];
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+ self.authorizationInProgress = NO;
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+}
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+
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+- (void)scrollViewDidScroll:(UIScrollView *)scrollView
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+{
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+ NSInteger currentOffset = scrollView.contentOffset.y;
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+ NSInteger maximumOffset = scrollView.contentSize.height - scrollView.frame.size.height;
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+
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+ if (_boxController.hasMoreFiles && !self.activityIndicator.isAnimating) {
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+ [self requestInformationForCurrentPath];
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+ }
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+}
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+
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+@end
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Felix Paul Kühne