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Add canResetTimeline callback and thread it through to TimelinePanel

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This commit is contained in:
Kegan Dougal 2017-03-22 15:06:52 +00:00
parent 544a6593e1
commit 4cebded04f
4 changed files with 41 additions and 1 deletions
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24
src/components/structures/MatrixChat.js
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@ -806,9 +806,31 @@ module.exports = React.createClass({
* (useful for setting listeners)
*/
_onWillStartClient() {
var self = this;
var cli = MatrixClientPeg.get();
var self = this;
// Allow the JS SDK to reap timeline events. This reduces the amount of
// memory consumed as the JS SDK stores multiple distinct copies of room
// state (each of which can be 10s of MBs) for each DISJOINT timeline. This is
// particularly noticeable when there are lots of 'limited' /sync responses
// such as when laptops unsleep.
// https://github.com/vector-im/riot-web/issues/3307#issuecomment-282895568
cli.setCanResetTimelineCallback(function(roomId) {
console.log("Request to reset timeline in room ", roomId, " viewing:", self.state.currentRoomId);
if (roomId !== self.state.currentRoomId) {
// It is safe to remove events from rooms we are not viewing.
return true;
}
// We are viewing the room which we want to reset. It is only safe to do
// this if we are not scrolled up in the view. To find out, delegate to
// the timeline panel. If the timeline panel doesn't exist, then we assume
// it is safe to reset the timeline.
if (!self.refs.loggedInView) {
return true;
}
return self.refs.loggedInView.canResetTimelineInRoom(roomId);
});
cli.on('sync', function(state, prevState) {
self.updateStatusIndicator(state, prevState);
if (state === "SYNCING" && prevState === "SYNCING") {