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Code Issues Releases Wiki Activity

update: forum/components/PostStream

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This commit is contained in:
Alexander Skvortsov
2020-08-09 23:30:39 -04:00
committed by Franz Liedke
parent 2fb885175a
commit 89b6847710
1 changed files with 19 additions and 13 deletions
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32
js/src/forum/components/PostStream.js
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@@ -8,7 +8,7 @@ import Button from '../../common/components/Button';
* The `PostStream` component displays an infinitely-scrollable wall of posts in * The `PostStream` component displays an infinitely-scrollable wall of posts in
* a discussion. Posts that have not loaded will be displayed as placeholders. * a discussion. Posts that have not loaded will be displayed as placeholders.
* *
* ### Props * ### Attrs
* *
* - `discussion` * - `discussion`
* - `stream` * - `stream`
@@ -16,9 +16,11 @@ import Button from '../../common/components/Button';
* - `onPositionChange` * - `onPositionChange`
*/ */
export default class PostStream extends Component { export default class PostStream extends Component {
init() { oninit(vnode) {
this.discussion = this.props.discussion; super.oninit(vnode);
this.stream = this.props.stream;
this.discussion = this.attrs.discussion;
this.stream = this.attrs.stream;
this.scrollListener = new ScrollListener(this.onscroll.bind(this)); this.scrollListener = new ScrollListener(this.onscroll.bind(this));
} }
@@ -96,29 +98,33 @@ export default class PostStream extends Component {
return <div className="PostStream">{items}</div>; return <div className="PostStream">{items}</div>;
} }
config(isInitialized, context) { onupdate(vnode) {
this.triggerScroll(); this.triggerScroll();
}
if (isInitialized) return; oncreate(vnode) {
super.oncreate(vnode);
this.triggerScroll();
// This is wrapped in setTimeout due to the following Mithril issue: // This is wrapped in setTimeout due to the following Mithril issue:
// https://github.com/lhorie/mithril.js/issues/637 // https://github.com/lhorie/mithril.js/issues/637
setTimeout(() => this.scrollListener.start()); setTimeout(() => this.scrollListener.start());
}
context.onunload = () => { onremove(vnode) {
this.scrollListener.stop(); this.scrollListener.stop();
clearTimeout(this.calculatePositionTimeout); clearTimeout(this.calculatePositionTimeout);
};
} }
/** /**
* Start scrolling, if appropriate, to a newly-targeted post. * Start scrolling, if appropriate, to a newly-targeted post.
*/ */
triggerScroll() { triggerScroll() {
if (!this.props.targetPost) return; if (!this.attrs.targetPost) return;
const oldTarget = this.prevTarget; const oldTarget = this.prevTarget;
const newTarget = this.props.targetPost; const newTarget = this.attrs.targetPost;
if (oldTarget) { if (oldTarget) {
if ('number' in oldTarget && oldTarget.number === newTarget.number) return; if ('number' in oldTarget && oldTarget.number === newTarget.number) return;
@@ -265,7 +271,7 @@ export default class PostStream extends Component {
}); });
if (startNumber) { if (startNumber) {
this.props.onPositionChange(startNumber || 1, endNumber, startNumber); this.attrs.onPositionChange(startNumber || 1, endNumber, startNumber);
} }
} }