refresh, this may need to be handled differently in the future.
Currently handling same as the new timestamp stuff
Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
- Instead of using one attribute, use one that might just contain one token
- Use the first token when tracking a child
- Mandate that no commas can be in individual tokens
This adds the `data-contained-scroll-tokens` API to elements in `ScrollPanel` which allows arbitrary containers of elements with scroll tokens to declare their contained scroll tokens. When jumping to a scroll token inside a container, the `ScrollPanel` will act as if it is scrolling to the container itself, not the child.
MELS has been modified such that it exposes the scroll tokens of all events that exist within it.This means "Jump to unread message" will work if the unread event is within a MELS (which is any member event, because even individual member events surrounded by other events are put inside a MELS).
Put a XXX to indicate that the ghost tile should be replaced with something mor e stable. As it stands, the ghost will appear, potentially at a different position to the RMs actual position
To fix https://github.com/vector-im/riot-web/issues/2916, force the checking of scroll position by calling _onWidgetLoad (might need renaming...) when a MELS is expanded/contracted.
Also use an keying scheme for MELS that doesn't depend on the events contained, but rather a simple incrementing index based on the order of the MELS as it appears amongst all MELS.
The MELS can now deal with arbitrary sequences of transitions per user, where a transition is a change in membership. A transition can be joined, left, invite_reject, invite_withdrawal, invited, banned, unbanned or kicked.
Repeated segments (modulo 1 and 2), such as joined,left,joined,left,joined will be handled and will be rendered as " ... and 10 others joined and left 2 times and then joined". The repeated segments are assumed to be at the beginning of the sequence. This could be improved to handle arbitrary repeated sequences.
This was causing rendering of MemberEventListSummary to be quite slow. Instead of creating two date objects, just check to see if they represent timestamps that happened on different days.
- The MessagePanel now uses the same key for the MELS instances rendered so that entirely new instances are not created, they are simply passed new props (namely when new events arrive).
- MELS itself now uses `shouldComponentUpdate` so that it only updates if it is given a different number of events to previous or if it is toggled to expand.
* Fix join/part collapsing regressions
* Simplify loop
* Explain e,e
* Explain return null in _renderSummary
* Kill it properly
* Move . to _renderSummary
* Only use the first and last events to decide whether a net change has occured
* Do not sort events by TS before summarising
* fix loop and comment
* remove data-number-events
* Better explanation comment in _renderSummary
* Less tortuous comment
Instead of using a window of a fixed number of events, unpaginate based on the distance of the viewport from the end of the scroll range.
The ScrollPanel uses the scrollTokens to convey to its parent (the TimelinePanel, in this case) the point to unpaginate up to. The TimelinePanel then takes a chunk of events off the front or back of `this.state.events` using `timelineWindow.unpaginate`.
Fixes https://github.com/vector-im/vector-web/issues/2020
