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Timeline: mark messages read even with no known oldest message

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Scott Nonnenberg 2021-06-02 13:32:49 -07:00 • committed by GitHub
parent d46963e864
commit 9ea827c033
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1 changed files with 2 additions and 2 deletions
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4
ts/components/conversation/Timeline.tsx
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@ -554,7 +554,7 @@ export class Timeline extends React.PureComponent<PropsType, StateType> {
}
const { newest, oldest } = this.visibleRows;
if (!newest || !oldest) {
if (!newest) {
return;
}
@ -579,7 +579,7 @@ export class Timeline extends React.PureComponent<PropsType, StateType> {
// Generally we hid this behind a countdown spinner at the top of the window, but
// this is a special-case for the situation where the window is so large and that
// all the messages are visible.
const oldestVisible = oldestRow === oldest.row;
const oldestVisible = Boolean(oldest && oldestRow === oldest.row);
const newestVisible = newestRow === newest.row;
if (oldestVisible && newestVisible && !haveOldest) {
this.loadOlderMessages();