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* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses) With permission of the Facebook Open Source team, we are simplifying the Texture license so that clients can rely on the Apache 2 terms that most of Texture is already covered by. This means that code originally forked from AsyncDisplayKit will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a PATENTS file. After getting confirmation that the updates to these core files look good, we'll propagate this new license header to all files (in this same PR) and get sign-off from all parties before landing. * [License] Update all Texture source files to be pure Apache 2. * Changelog entry for Apache 2 license update. * Revert "[License] Update all Texture source files to be pure Apache 2." This reverts commit ffa0fbbba9717d871dd16c4b07539f2f8208fc2b. * [License] Update all Texture source files to be pure Apache 2, maintaining copyrights. * [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
108 lines
3.1 KiB
Objective-C
108 lines
3.1 KiB
Objective-C
//
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// PhotoFeedBaseController.m
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import "PhotoFeedBaseController.h"
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#import "PhotoFeedModel.h"
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@implementation PhotoFeedBaseController
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{
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UIActivityIndicatorView *_activityIndicatorView;
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}
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// -loadView is guaranteed to be called on the main thread and is the appropriate place to
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// set up an UIKit objects you may be using.
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- (void)loadView
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{
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[super loadView];
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_activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
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_photoFeed = [[PhotoFeedModel alloc] initWithPhotoFeedModelType:PhotoFeedModelTypePopular imageSize:[self imageSizeForScreenWidth]];
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[self refreshFeed];
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CGSize boundSize = self.view.bounds.size;
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[_activityIndicatorView sizeToFit];
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CGRect refreshRect = _activityIndicatorView.frame;
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refreshRect.origin = CGPointMake((boundSize.width - _activityIndicatorView.frame.size.width) / 2.0,
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(boundSize.height - _activityIndicatorView.frame.size.height) / 2.0);
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_activityIndicatorView.frame = refreshRect;
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[self.view addSubview:_activityIndicatorView];
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self.tableView.allowsSelection = NO;
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self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
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self.view.backgroundColor = [UIColor whiteColor];
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}
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- (void)refreshFeed
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{
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[_activityIndicatorView startAnimating];
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// small first batch
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[_photoFeed refreshFeedWithCompletionBlock:^(NSArray *newPhotos){
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[_activityIndicatorView stopAnimating];
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[self.tableView reloadData];
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// immediately start second larger fetch
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[self loadPage];
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} numResultsToReturn:4];
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}
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- (void)insertNewRows:(NSArray *)newPhotos
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{
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NSInteger section = 0;
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NSMutableArray *indexPaths = [NSMutableArray array];
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NSInteger newTotalNumberOfPhotos = [_photoFeed numberOfItemsInFeed];
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NSInteger existingNumberOfPhotos = newTotalNumberOfPhotos - newPhotos.count;
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for (NSInteger row = existingNumberOfPhotos; row < newTotalNumberOfPhotos; row++) {
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NSIndexPath *path = [NSIndexPath indexPathForRow:row inSection:section];
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[indexPaths addObject:path];
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}
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[self.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationNone];
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}
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- (UIStatusBarStyle)preferredStatusBarStyle
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{
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return UIStatusBarStyleLightContent;
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}
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- (CGSize)imageSizeForScreenWidth
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{
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CGRect screenRect = [[UIScreen mainScreen] bounds];
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CGFloat screenScale = [[UIScreen mainScreen] scale];
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return CGSizeMake(screenRect.size.width * screenScale, screenRect.size.width * screenScale);
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}
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#pragma mark - PhotoFeedViewControllerProtocol
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- (void)resetAllData
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{
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[_photoFeed clearFeed];
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[self.tableView reloadData];
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[self refreshFeed];
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}
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#pragma mark - Subclassing
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- (UITableView *)tableView
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{
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NSAssert(NO, @"Subclasses must override this method");
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return nil;
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}
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- (void)loadPage
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{
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NSAssert(NO, @"Subclasses must override this method");
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}
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@end
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