mirror of
https://github.com/vector-im/element-ios.git
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215 lines
6.7 KiB
Objective-C
215 lines
6.7 KiB
Objective-C
/*
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Copyright 2015 OpenMarket 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 "MXKRoomSettingsViewController.h"
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#import "NSBundle+MatrixKit.h"
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#import "MXKSwiftHeader.h"
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@interface MXKRoomSettingsViewController()
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{
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// the room events listener
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id roomListener;
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// Observe kMXSessionWillLeaveRoomNotification to be notified if the user leaves the current room.
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id leaveRoomNotificationObserver;
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// Observe kMXRoomDidFlushDataNotification to take into account the updated room state when the room history is flushed.
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id roomDidFlushDataNotificationObserver;
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}
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@end
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@implementation MXKRoomSettingsViewController
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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([MXKRoomSettingsViewController class])
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bundle:[NSBundle bundleForClass:[MXKRoomSettingsViewController class]]];
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}
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+ (instancetype)roomSettingsViewController
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{
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return [[[self class] alloc] initWithNibName:NSStringFromClass([MXKRoomSettingsViewController class])
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bundle:[NSBundle bundleForClass:[MXKRoomSettingsViewController class]]];
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}
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#pragma mark -
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewWillAppear:animated];
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[self refreshRoomSettings];
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}
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#pragma mark - Override MXKTableViewController
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- (void)finalizeInit
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{
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[super finalizeInit];
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}
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- (void)destroy
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{
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if (roomListener)
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{
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MXWeakify(self);
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[mxRoom liveTimeline:^(MXEventTimeline *liveTimeline) {
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MXStrongifyAndReturnIfNil(self);
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[liveTimeline removeListener:self->roomListener];
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self->roomListener = nil;
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}];
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}
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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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if (roomDidFlushDataNotificationObserver)
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{
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[[NSNotificationCenter defaultCenter] removeObserver:roomDidFlushDataNotificationObserver];
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roomDidFlushDataNotificationObserver = nil;
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}
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mxRoom = nil;
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mxRoomState = nil;
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[super destroy];
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}
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- (void)onMatrixSessionStateDidChange:(NSNotification *)notif;
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{
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// Check this is our Matrix session that has changed
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if (notif.object == self.mainSession)
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{
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[super onMatrixSessionStateDidChange:notif];
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// refresh when the session sync is done.
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if (MXSessionStateRunning == self.mainSession.state)
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{
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[self refreshRoomSettings];
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}
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}
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}
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#pragma mark - Public API
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/**
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Set the dedicated session and the room Id
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*/
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- (void)initWithSession:(MXSession*)mxSession andRoomId:(NSString*)roomId
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{
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// Update the matrix session
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if (self.mainSession)
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{
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[self removeMatrixSession:self.mainSession];
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}
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mxRoom = nil;
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// Sanity checks
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if (mxSession && roomId)
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{
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[self addMatrixSession:mxSession];
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// Report the room identifier
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_roomId = roomId;
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mxRoom = [mxSession roomWithRoomId:roomId];
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}
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if (mxRoom)
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{
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// Register a listener to handle messages related to room name, topic...
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MXWeakify(self);
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[mxRoom liveTimeline:^(MXEventTimeline *liveTimeline) {
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MXStrongifyAndReturnIfNil(self);
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self->roomListener = [liveTimeline listenToEventsOfTypes:@[kMXEventTypeStringRoomName, kMXEventTypeStringRoomTopic, kMXEventTypeStringRoomAliases, kMXEventTypeStringRoomAvatar, kMXEventTypeStringRoomPowerLevels, kMXEventTypeStringRoomCanonicalAlias, kMXEventTypeStringRoomJoinRules, kMXEventTypeStringRoomGuestAccess, kMXEventTypeStringRoomHistoryVisibility] onEvent:^(MXEvent *event, MXTimelineDirection direction, MXRoomState *roomState) {
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// Consider only live events
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if (direction == MXTimelineDirectionForwards)
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{
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[self updateRoomState:liveTimeline.state];
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}
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}];
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// Observe kMXSessionWillLeaveRoomNotification to be notified if the user leaves the current room.
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self->leaveRoomNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:kMXSessionWillLeaveRoomNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif) {
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// Check whether the user will leave the room related to the displayed participants
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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.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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// Observe room history flush (sync with limited timeline, or state event redaction)
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self->roomDidFlushDataNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:kMXRoomDidFlushDataNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif) {
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MXRoom *room = notif.object;
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if (self.mainSession == room.mxSession && [self.roomId isEqualToString:room.roomId])
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{
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// The existing room history has been flushed during server sync. Take into account the updated room state.
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[self updateRoomState:liveTimeline.state];
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}
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}];
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[self updateRoomState:liveTimeline.state];
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}];
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}
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self.title = [MatrixKitL10n roomDetailsTitle];
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}
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- (void)refreshRoomSettings
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{
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[self.tableView reloadData];
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}
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- (void)updateRoomState:(MXRoomState*)newRoomState
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{
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mxRoomState = newRoomState.copy;
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[self refreshRoomSettings];
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}
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#pragma mark - UITableViewDataSource
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// empty by default
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- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
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{
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return 0;
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}
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- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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// Return a fake cell to prevent app from crashing.
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return [[UITableViewCell alloc] init];
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}
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@end
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