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//
// DialogsViewController.m
// Juick
//
// Created by Vitaly Takmazov on 04/03/2018.
// Copyright © 2018 com.juick. All rights reserved.
//
#import "DialogsViewController.h"
#import "ChatViewController.h"
#import "ConversationCell.h"
@interface DialogsViewController()
@property(nonatomic, assign) Boolean dataLoading;
@property(nonatomic, assign) Boolean initialDataLoaded;
-(void) applicationActivated;
@end
@implementation DialogsViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.view setBackgroundColor:[UIColor colorNamed:@"Background"]];
[self.tableView registerNib:[UINib nibWithNibName:@"ConversationCell" bundle:[NSBundle mainBundle]] forCellReuseIdentifier:@"notificationCell"];
self.tableView.rowHeight = UITableViewAutomaticDimension;
#if !TARGET_OS_MACCATALYST
self.refreshControl = [UIRefreshControl new];
[self.refreshControl addTarget:self action:@selector(refreshData) forControlEvents:UIControlEventValueChanged];
#endif
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationActivated) name:UIApplicationDidBecomeActiveNotification object:nil];
[self refreshData];
}
- (void)viewWillAppear:(BOOL)animated {
self.navigationController.visibleViewController.title = self.title;
NSIndexPath *tableSelection = [self.tableView indexPathForSelectedRow];
[self.tableView deselectRowAtIndexPath:tableSelection animated:NO];
}
- (void) refreshData {
self.chats = [NSMutableArray array];
[self.tableView reloadData];
UIApplicationState state = [UIApplication sharedApplication].applicationState;
if (state == UIApplicationStateActive && self.dataLoading == NO) {
self.dataLoading = YES;
[[AppDelegate shared].api fetchChats:^(NSArray *groups, NSError *err) {
if (!self.initialDataLoaded) {
self.initialDataLoaded = YES;
}
self.dataLoading = NO;
if (err == nil) {
[self.chats addObjectsFromArray:groups];
NSMutableArray *indexPaths = [NSMutableArray new];
for (NSUInteger index = 0; index < [groups count]; index++) {
[indexPaths addObject:[NSIndexPath indexPathForRow:index inSection: 0]];
}
[self.tableView beginUpdates];
[self.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:NO];
[self.tableView endUpdates];
self.tableView.backgroundView = [UIView new];
} else {
[self setEmptyMessageView:@"Sign in to view chats"];
[self.tableView reloadData];
}
[self.refreshControl endRefreshing];
}];
}
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return self.chats.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
ConversationCell *cell = [tableView dequeueReusableCellWithIdentifier:@"notificationCell" forIndexPath:indexPath];
[cell configureWithChat:[self.chats objectAtIndex:indexPath.row]];
return cell;
}
- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 84.0f;
}
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[self performSegueWithIdentifier:@"chatSegue" sender:self];
}
-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"chatSegue"]) {
NSString *uname;
if ([[AppDelegate shared].pushedUname length] > 0) {
uname = [[AppDelegate shared].pushedUname copy];
[[AppDelegate shared] cleanupPushedData];
} else {
Chat *chat = [self.chats objectAtIndex:[self.tableView indexPathForSelectedRow].row];
uname = chat.uname;
}
ChatViewController *vc = (ChatViewController *)segue.destinationViewController;
[vc setUname:uname];
}
}
- (void) setEmptyMessageView:(NSString *)message {
CGRect rect = CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height);
UILabel *messageLabel = [[UILabel alloc] initWithFrame:rect];
messageLabel.text = message;
messageLabel.numberOfLines = 0;
messageLabel.textAlignment = NSTextAlignmentCenter;
messageLabel.font = [UIFont preferredFontForTextStyle:UIFontTextStyleCallout];
messageLabel.textColor = [UIColor colorNamed:@"Muted"];
[messageLabel sizeToFit];
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
[self.tableView setBackgroundView:messageLabel];
}
- (void)applicationActivated {
if (!self.initialDataLoaded) {
[self refreshData];
}
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidBecomeActiveNotification object:nil];
}
@end
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