//
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// TWTRTimelineViewController.h
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// TwitterKit
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//
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// Copyright (c) 2015 Twitter. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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@protocol TWTRTimelineDataSource;
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@protocol TWTRTweetViewDelegate;
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@protocol TWTRTimelineDelegate;
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@class TWTRMoPubAdConfiguration;
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@class TWTRTweet;
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NS_ASSUME_NONNULL_BEGIN
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/**
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This class is a `UITableViewController` subclass that displays `TWTRTweetTableViewCell` cells. It handles cell-reuse, cell-configuration, and loading more Tweets from the given timeline once the last cell is displayed.
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## Usage
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Initialize this class with any object that conforms to the `TWTRTimelineDataSource` protocol. We provide two such classes, `TWTRUserTimelineDataSource` and `TWTRSearchTimelineDataSource`. These provide `TWTRTweet` objects to this table view which then configures the instances of `TWTRTweetTableViewCell`.
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// Create the data source
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TWTRAPIClient *client = [[TWTRAPIClient alloc] init];
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TWTRUserTimelineDataSource *dataSource = [[TWTRUserTimelineDataSource alloc] initWithScreenName:@"jack" APIClient:client];
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// Create the timeline view controller
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TWTRTimelineViewController *timeline = [[TWTRTimelineViewController alloc] initWithDataSource:dataSource];
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## Loading More
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This class loads the first batch of `TWTRTweet` objects from the Twitter API when `viewWillAppear:` is received. It also handles loading more tweets automatically once the last cell has been shown.
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*/
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@interface TWTRTimelineViewController : UITableViewController
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/**
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The source of `TWTRTweet` objects for this `TWTRTimelineViewController`.
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May be set to update the Tweets being shown by this table view. Must be set on the main thread.
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*/
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@property (nonatomic, copy) id<TWTRTimelineDataSource> dataSource;
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/**
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* The configuration of MoPub ads to show in the timeline. You must
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* link against the MoPub framework and provide this configuration in order
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* for ads to be injected.
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* @note Changing this will force a reload of the timeline. You can only set this once. Must be set on the main thread.
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*/
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@property (nonatomic, nullable) TWTRMoPubAdConfiguration *adConfiguration;
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/**
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* Whether action buttons (Like, Share) should be shown on the `TWTRTweetTableViewCell`s inside the tableview.
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*/
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@property (nonatomic) BOOL showTweetActions;
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/**
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* If set, this value will be passed to all TWTRTweetView instances in the timeline.
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*/
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@property (nonatomic, weak) id<TWTRTweetViewDelegate> tweetViewDelegate;
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/**
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* The object that acts as the delegate for the timeline.
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*/
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@property (nonatomic, weak) id<TWTRTimelineDelegate> timelineDelegate;
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/**
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Initializes a timeline view controller. Does not start loading tweets until
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`viewWillAppear:` is called.
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This method must be used to initialize this class. The `init` method is unavailable.
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@param dataSource A timeline data source object that conforms to the `TWTRTimelineDataSource` protocol.
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@return A fully initialized `TWTRTimelineViewController` or nil if the data source is missing.
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*/
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- (instancetype)initWithDataSource:(nullable id<TWTRTimelineDataSource>)dataSource;
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/**
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* Initializes a timeline view controller with an optional ad configuration. Does not start loading Tweets until `viewWillAppear:` is called.
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*
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* @param dataSource A timeline data source object that conforms to the `TWTRTimelineDataSource` protocol.
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* @param adConfiguration Configuration for the type of MoPub ads to display. Ads will only load after
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* the initial timeline is loaded. No ads will be displayed if nil.
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*
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* @return A fully initialized `TWTRTimelineViewController`. Tweets will not be loaded if the data source is nil.
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*/
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- (instancetype)initWithDataSource:(nullable id<TWTRTimelineDataSource>)dataSource adConfiguration:(nullable TWTRMoPubAdConfiguration *)adConfiguration;
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- (instancetype)initWithStyle:(UITableViewStyle)style NS_UNAVAILABLE;
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/**
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* Asynchronously refresh and replace all the data in the table view with the latest `TWTRTweet`s.
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*/
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- (void)refresh;
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/**
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* Returns the number of Tweets that are currently displayed by the controller.
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*/
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- (NSUInteger)countOfTweets;
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/**
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* Returns the Tweet at the given index.
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*
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* @warning This method will throw an exception if the index is out of range of the count of Tweets.
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*/
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- (TWTRTweet *)tweetAtIndex:(NSInteger)index;
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/**
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* Returns a copy of the Tweets at the time of calling this method.
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* This method returns the copy of the current Tweets. The Tweets may change
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* after this method is called.
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*/
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- (NSArray *)snapshotTweets;
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@end
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NS_ASSUME_NONNULL_END
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