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123 lines
3.6 KiB
Objective-C
123 lines
3.6 KiB
Objective-C
/*
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Copyright 2017 Vector Creations 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 "WidgetManager.h"
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#pragma mark - Contants
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NSString *const kWidgetEventTypeString = @"im.vector.modular.widgets";
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NSString *const kWidgetTypeJitsi = @"jitsi";
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NSString *const kMXKWidgetManagerDidUpdateWidgetNotification = @"kMXKWidgetManagerDidUpdateWidgetNotification";
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@interface WidgetManager ()
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{
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// UserId -> Listener for matrix events for widgets.
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// There is one per matrix session.
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NSMutableDictionary<NSString*, id> *widgetEventListener;
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}
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@end
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@implementation WidgetManager
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+ (instancetype)sharedManager
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{
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static WidgetManager *sharedManager = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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sharedManager = [[WidgetManager alloc] init];
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});
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return sharedManager;
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}
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- (instancetype)init
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{
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self = [super init];
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if (self)
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{
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widgetEventListener = [NSMutableDictionary dictionary];
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}
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return self;
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}
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- (NSArray<Widget *> *)widgetsInRoom:(MXRoom *)room
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{
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// Widget id -> widget
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NSMutableDictionary <NSString*, Widget *> *widgets = [NSMutableDictionary dictionary];
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// Get all im.vector.modular.widgets state events in the room
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NSArray<MXEvent*> *widgetEvents = [room.state stateEventsWithType:kWidgetEventTypeString];
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// There can be several im.vector.modular.widgets state events for a same widget but
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// only the last one must be considered.
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// We assume that returned events are ordered chronologically
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for (MXEvent *widgetEvent in widgetEvents.reverseObjectEnumerator)
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{
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// widgetEvent.stateKey = widget id
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if (!widgets[widgetEvent.stateKey])
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{
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Widget *widget = [[Widget alloc] initWithWidgetEvent:widgetEvent inMatrixSession:room.mxSession];
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if (widget)
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{
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widgets[widget.widgetId] = widget;
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}
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}
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}
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// Return active widgets only
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NSMutableArray<Widget *> *activeWidgets = [NSMutableArray array];
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for (Widget *widget in widgets.allValues)
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{
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if (widget.isActive)
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{
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[activeWidgets addObject:widget];
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}
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}
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return activeWidgets;
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}
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- (void)addMatrixSession:(MXSession *)mxSession
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{
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id listener = [mxSession listenToEventsOfTypes:@[kWidgetEventTypeString] onEvent:^(MXEvent *event, MXTimelineDirection direction, id customObject) {
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if (direction == MXTimelineDirectionForwards)
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{
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Widget *widget = [[Widget alloc] initWithWidgetEvent:event inMatrixSession:mxSession];
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if (widget)
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{
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[[NSNotificationCenter defaultCenter] postNotificationName:kMXKWidgetManagerDidUpdateWidgetNotification object:widget];
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}
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}
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}];
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widgetEventListener[mxSession.matrixRestClient.credentials.userId] = listener;
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}
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- (void)removeMatrixSession:(MXSession *)mxSession
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{
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id listener = widgetEventListener[mxSession.myUser.userId];
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[mxSession removeListener:listener];
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// @TODO
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// [widgetEventListener removeObjectForKey:mxSession.matrixRestClient.credentials.userId];
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}
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@end
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