578 lines
19 KiB
Objective-C
578 lines
19 KiB
Objective-C
/*
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Copyright 2015 OpenMarket Ltd
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Copyright 2017 Vector Creations Ltd
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Copyright 2018 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "MXKRoomMemberListViewController.h"
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#import "MXKRoomMemberTableViewCell.h"
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#import "MXKConstants.h"
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#import "NSBundle+MatrixKit.h"
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#import "MXKSwiftHeader.h"
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@interface MXKRoomMemberListViewController ()
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{
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/**
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The data source providing UITableViewCells
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*/
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MXKRoomMemberListDataSource *dataSource;
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/**
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Timer used to update members presence
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*/
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NSTimer* presenceUpdateTimer;
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/**
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Optional bar buttons
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*/
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UIBarButtonItem *searchBarButton;
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UIBarButtonItem *addBarButton;
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/**
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The current displayed alert (if any).
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*/
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UIAlertController *currentAlert;
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/**
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Search bar
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*/
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BOOL ignoreSearchRequest;
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/**
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Observe kMXSessionWillLeaveRoomNotification to be notified if the user leaves the current room.
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*/
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id leaveRoomNotificationObserver;
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}
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@end
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@implementation MXKRoomMemberListViewController
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@synthesize dataSource;
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#pragma mark - Class methods
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+ (UINib *)nib
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{
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return [UINib nibWithNibName:NSStringFromClass([MXKRoomMemberListViewController class])
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bundle:[NSBundle bundleForClass:[MXKRoomMemberListViewController class]]];
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}
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+ (instancetype)roomMemberListViewController
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{
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return [[[self class] alloc] initWithNibName:NSStringFromClass([MXKRoomMemberListViewController class])
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bundle:[NSBundle bundleForClass:[MXKRoomMemberListViewController class]]];
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}
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#pragma mark -
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- (void)finalizeInit
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{
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[super finalizeInit];
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// Enable both bar button by default.
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_enableMemberInvitation = YES;
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_enableMemberSearch = YES;
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}
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- (void)viewDidLoad
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{
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[super viewDidLoad];
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// Check whether the view controller has been pushed via storyboard
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if (!self.membersTableView)
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{
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// Instantiate view controller objects
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[[[self class] nib] instantiateWithOwner:self options:nil];
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}
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// Adjust Top and Bottom constraints to take into account potential navBar and tabBar.
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[NSLayoutConstraint deactivateConstraints:@[_membersSearchBarTopConstraint, _membersTableViewBottomConstraint]];
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated"
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_membersSearchBarTopConstraint = [NSLayoutConstraint constraintWithItem:self.topLayoutGuide
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attribute:NSLayoutAttributeBottom
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relatedBy:NSLayoutRelationEqual
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toItem:self.membersSearchBar
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attribute:NSLayoutAttributeTop
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multiplier:1.0f
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constant:0.0f];
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_membersTableViewBottomConstraint = [NSLayoutConstraint constraintWithItem:self.bottomLayoutGuide
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attribute:NSLayoutAttributeTop
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relatedBy:NSLayoutRelationEqual
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toItem:self.membersTableView
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attribute:NSLayoutAttributeBottom
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multiplier:1.0f
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constant:0.0f];
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#pragma clang diagnostic pop
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[NSLayoutConstraint activateConstraints:@[_membersSearchBarTopConstraint, _membersTableViewBottomConstraint]];
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// Hide search bar by default
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self.membersSearchBar.hidden = YES;
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self.membersSearchBarHeightConstraint.constant = 0;
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[self.view setNeedsUpdateConstraints];
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searchBarButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(search:)];
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addBarButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(inviteNewMember:)];
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// Refresh bar button display.
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[self refreshUIBarButtons];
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// Add an accessory view to the search bar in order to retrieve keyboard view.
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self.membersSearchBar.inputAccessoryView = [[UIView alloc] initWithFrame:CGRectZero];
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// Finalize table view configuration
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self.membersTableView.delegate = self;
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self.membersTableView.dataSource = dataSource; // Note datasource may be nil here.
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// Set up default table view cell class
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[self.membersTableView registerNib:MXKRoomMemberTableViewCell.nib forCellReuseIdentifier:MXKRoomMemberTableViewCell.defaultReuseIdentifier];
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}
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- (void)viewDidAppear:(BOOL)animated
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{
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[super viewDidAppear:animated];
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// Check whether the user still belongs to the room's members.
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if (self.dataSource && [self.mainSession roomWithRoomId:self.dataSource.roomId])
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{
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[self refreshUIBarButtons];
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// Observe kMXSessionWillLeaveRoomNotification to be notified if the user leaves the current room.
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leaveRoomNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:kMXSessionWillLeaveRoomNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif)
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{
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// Check whether the user will leave the room related to the displayed member list
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if (notif.object == self.mainSession)
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{
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NSString *roomId = notif.userInfo[kMXSessionNotificationRoomIdKey];
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if (roomId && [roomId isEqualToString:self.dataSource.roomId])
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{
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// We remove the current view controller.
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[self withdrawViewControllerAnimated:YES completion:nil];
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}
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}
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}];
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}
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else
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{
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// We remove the current view controller.
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[self withdrawViewControllerAnimated:YES completion:nil];
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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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// Restore search mechanism (if enabled)
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ignoreSearchRequest = NO;
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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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// The user may still press search button whereas the view disappears
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ignoreSearchRequest = YES;
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if (leaveRoomNotificationObserver)
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{
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[[NSNotificationCenter defaultCenter] removeObserver:leaveRoomNotificationObserver];
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leaveRoomNotificationObserver = nil;
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}
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// Leave potential search session
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if (!self.membersSearchBar.isHidden)
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{
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[self searchBarCancelButtonClicked:self.membersSearchBar];
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}
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}
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- (void)dealloc
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{
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self.membersSearchBar.inputAccessoryView = nil;
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}
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- (void)didReceiveMemoryWarning
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{
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[super didReceiveMemoryWarning];
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// Dispose of any resources that can be recreated.
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}
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#pragma mark - Override MXKTableViewController
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- (void)onKeyboardShowAnimationComplete
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{
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// Report the keyboard view in order to track keyboard frame changes
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self.keyboardView = _membersSearchBar.inputAccessoryView.superview;
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}
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated"
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- (void)setKeyboardHeight:(CGFloat)keyboardHeight
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{
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// Deduce the bottom constraint for the table view (Don't forget the potential tabBar)
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CGFloat tableViewBottomConst = keyboardHeight - self.bottomLayoutGuide.length;
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// Check whether the keyboard is over the tabBar
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if (tableViewBottomConst < 0)
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{
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tableViewBottomConst = 0;
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}
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// Update constraints
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_membersTableViewBottomConstraint.constant = tableViewBottomConst;
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// Force layout immediately to take into account new constraint
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[self.view layoutIfNeeded];
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}
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#pragma clang diagnostic pop
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- (void)destroy
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{
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if (presenceUpdateTimer)
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{
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[presenceUpdateTimer invalidate];
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presenceUpdateTimer = nil;
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}
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self.membersTableView.dataSource = nil;
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self.membersTableView.delegate = nil;
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self.membersTableView = nil;
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dataSource.delegate = nil;
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dataSource = nil;
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if (currentAlert)
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{
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[currentAlert dismissViewControllerAnimated:NO completion:nil];
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currentAlert = nil;
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}
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searchBarButton = nil;
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addBarButton = nil;
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_delegate = nil;
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[super destroy];
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}
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#pragma mark - Internal methods
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- (void)updateMembersActivityInfo
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{
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for (id memberCell in self.membersTableView.visibleCells)
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{
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if ([memberCell respondsToSelector:@selector(updateActivityInfo)])
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{
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[memberCell updateActivityInfo];
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}
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}
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}
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#pragma mark - UIBarButton handling
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- (void)setEnableMemberSearch:(BOOL)enableMemberSearch
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{
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_enableMemberSearch = enableMemberSearch;
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[self refreshUIBarButtons];
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}
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- (void)setEnableMemberInvitation:(BOOL)enableMemberInvitation
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{
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_enableMemberInvitation = enableMemberInvitation;
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[self refreshUIBarButtons];
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}
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- (void)refreshUIBarButtons
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{
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MXRoom *mxRoom = [self.mainSession roomWithRoomId:dataSource.roomId];
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MXWeakify(self);
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[mxRoom state:^(MXRoomState *roomState) {
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MXStrongifyAndReturnIfNil(self);
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BOOL showInvitationOption = self.enableMemberInvitation;
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if (showInvitationOption && self->dataSource)
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{
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// Check conditions to be able to invite someone
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NSInteger oneSelfPowerLevel = [roomState.powerLevels powerLevelOfUserWithUserID:self.mainSession.myUser.userId];
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if (oneSelfPowerLevel < [roomState.powerLevels invite])
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{
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showInvitationOption = NO;
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}
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}
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if (showInvitationOption)
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{
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if (self.enableMemberSearch)
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{
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self.navigationItem.rightBarButtonItems = @[self->searchBarButton, self->addBarButton];
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}
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else
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{
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self.navigationItem.rightBarButtonItems = @[self->addBarButton];
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}
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}
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else if (self.enableMemberSearch)
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{
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self.navigationItem.rightBarButtonItems = @[self->searchBarButton];
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}
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else
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{
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self.navigationItem.rightBarButtonItems = nil;
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}
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}];
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}
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#pragma mark -
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- (void)displayList:(MXKRoomMemberListDataSource *)listDataSource
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{
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if (dataSource)
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{
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dataSource.delegate = nil;
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dataSource = nil;
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[self removeMatrixSession:self.mainSession];
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}
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dataSource = listDataSource;
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dataSource.delegate = self;
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// Report the matrix session at view controller level to update UI according to session state
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[self addMatrixSession:dataSource.mxSession];
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if (self.membersTableView)
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{
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// Set up table data source
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self.membersTableView.dataSource = dataSource;
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}
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}
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- (void)scrollToTop:(BOOL)animated
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{
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[self.membersTableView setContentOffset:CGPointMake(-self.membersTableView.adjustedContentInset.left, -self.membersTableView.adjustedContentInset.top) animated:animated];
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}
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#pragma mark - MXKDataSourceDelegate
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- (Class<MXKCellRendering>)cellViewClassForCellData:(MXKCellData*)cellData
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{
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// Return the default member table view cell
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return MXKRoomMemberTableViewCell.class;
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}
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- (NSString *)cellReuseIdentifierForCellData:(MXKCellData*)cellData
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{
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// Consider the default member table view cell
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return MXKRoomMemberTableViewCell.defaultReuseIdentifier;
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}
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- (void)dataSource:(MXKDataSource *)dataSource didCellChange:(id)changes
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{
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if (presenceUpdateTimer)
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{
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[presenceUpdateTimer invalidate];
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presenceUpdateTimer = nil;
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}
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// For now, do a simple full reload
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[self.membersTableView reloadData];
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if (shouldScrollToTopOnRefresh)
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{
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[self scrollToTop:NO];
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shouldScrollToTopOnRefresh = NO;
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}
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// Place a timer to update members's activity information
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presenceUpdateTimer = [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(updateMembersActivityInfo) userInfo:self repeats:YES];
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}
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#pragma mark - UITableView delegate
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- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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return [dataSource cellHeightAtIndex:indexPath.row];
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}
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if (_delegate)
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{
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id<MXKRoomMemberCellDataStoring> cellData = [dataSource cellDataAtIndex:indexPath.row];
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[_delegate roomMemberListViewController:self didSelectMember:cellData.roomMember];
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}
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[tableView deselectRowAtIndexPath:indexPath animated:NO];
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}
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- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
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{
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return 0;
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}
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- (void)tableView:(UITableView *)tableView didEndDisplayingCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath*)indexPath
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{
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// Release here resources, and restore reusable cells
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if ([cell respondsToSelector:@selector(didEndDisplay)])
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{
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[(id<MXKCellRendering>)cell didEndDisplay];
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}
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}
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#pragma mark - UISearchBarDelegate
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- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
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{
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// Apply filter
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shouldScrollToTopOnRefresh = YES;
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if (searchText.length)
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{
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[self.dataSource searchWithPatterns:@[searchText]];
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}
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else
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{
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[self.dataSource searchWithPatterns:nil];
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}
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}
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- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
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{
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// "Done" key has been pressed
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[searchBar resignFirstResponder];
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}
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- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
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{
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// Leave search
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[searchBar resignFirstResponder];
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self.membersSearchBar.hidden = YES;
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self.membersSearchBarHeightConstraint.constant = 0;
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[self.view setNeedsUpdateConstraints];
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self.membersSearchBar.text = nil;
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// Refresh display
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shouldScrollToTopOnRefresh = YES;
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[self.dataSource searchWithPatterns:nil];
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}
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#pragma mark - Actions
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- (void)search:(id)sender
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{
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// The user may have pressed search button whereas the view controller was disappearing
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if (ignoreSearchRequest)
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{
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return;
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}
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if (self.membersSearchBar.isHidden)
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{
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// Check whether there are data in which search
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if ([self.dataSource tableView:self.membersTableView numberOfRowsInSection:0])
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{
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self.membersSearchBar.hidden = NO;
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self.membersSearchBarHeightConstraint.constant = 44;
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[self.view setNeedsUpdateConstraints];
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// Create search bar
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[self.membersSearchBar becomeFirstResponder];
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}
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}
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else
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{
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[self searchBarCancelButtonClicked: self.membersSearchBar];
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}
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}
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- (void)inviteNewMember:(id)sender
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{
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__weak typeof(self) weakSelf = self;
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if (currentAlert)
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{
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[currentAlert dismissViewControllerAnimated:NO completion:nil];
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}
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// Ask for userId to invite
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currentAlert = [UIAlertController alertControllerWithTitle:[VectorL10n userIdTitle] message:nil preferredStyle:UIAlertControllerStyleAlert];
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[currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n cancel]
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style:UIAlertActionStyleDefault
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handler:^(UIAlertAction * action) {
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if (weakSelf)
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{
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typeof(self) self = weakSelf;
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self->currentAlert = nil;
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}
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}]];
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[currentAlert addTextFieldWithConfigurationHandler:^(UITextField *textField)
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{
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textField.secureTextEntry = NO;
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textField.placeholder = [VectorL10n userIdPlaceholder];
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}];
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[currentAlert addAction:[UIAlertAction actionWithTitle:[VectorL10n invite]
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style:UIAlertActionStyleDefault
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handler:^(UIAlertAction * action) {
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if (weakSelf)
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{
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typeof(self) self = weakSelf;
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NSString *userId = [self->currentAlert textFields].firstObject.text;
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self->currentAlert = nil;
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if (userId.length)
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{
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MXRoom *mxRoom = [self.mainSession roomWithRoomId:self.dataSource.roomId];
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if (mxRoom)
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{
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[mxRoom inviteUser:userId success:^{
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} failure:^(NSError *error) {
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MXLogDebug(@"[MXKRoomVC] Invite %@ failed", userId);
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// Notify MatrixKit user
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NSString *myUserId = self.mainSession.myUser.userId;
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[[NSNotificationCenter defaultCenter] postNotificationName:kMXKErrorNotification object:error userInfo:myUserId ? @{kMXKErrorUserIdKey: myUserId} : nil];
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}];
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}
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}
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}
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}]];
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[self presentViewController:currentAlert animated:YES completion:nil];
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}
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@end
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