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Handle redactions (both live and historic).

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This commit is contained in:
Kegan Dougal
2015-07-21 17:14:11 +01:00
parent 6653d294d9
commit 90e778cb84
2 changed files with 24 additions and 2 deletions
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19
lib/models/room.js
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@@ -35,6 +35,7 @@ function Room(roomId, storageToken) {
this.currentState = new RoomState(roomId);
this.summary = null;
this.storageToken = storageToken;
this._redactions = [];
}
utils.inherits(Room, EventEmitter);
@@ -94,6 +95,10 @@ utils.inherits(Room, EventEmitter);
Room.prototype.addEventsToTimeline = function(events, toStartOfTimeline) {
var stateContext = toStartOfTimeline ? this.oldState : this.currentState;
for (var i = 0; i < events.length; i++) {
if (toStartOfTimeline && this._redactions.indexOf(events[i].getId()) >= 0) {
continue; // do not add the redacted event.
}
setEventMetadata(events[i], stateContext, toStartOfTimeline);
// modify state
if (events[i].isState()) {
@@ -105,6 +110,20 @@ Room.prototype.addEventsToTimeline = function(events, toStartOfTimeline) {
setEventMetadata(events[i], stateContext, toStartOfTimeline);
}
}
if (events[i].getType() === "m.room.redaction") {
// try to remove the element
var removed = utils.removeElement(this.timeline, function(e) {
return e.getId() === events[i].event.redacts
}, true);
if (!removed && toStartOfTimeline) {
// redactions will trickle in BEFORE the event redacted so make
// a note of the redacted event; we'll check it later.
this._redactions.push(events[i].event.redacts);
}
// NB: We continue to add the redaction event to the timeline so clients
// can say "so and so redacted an event" if they wish to.
}
// TODO: pass through filter to see if this should be added to the timeline.
if (toStartOfTimeline) {
this.timeline.unshift(events[i]);