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Fix soft crash on room join

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This fixes a soft crash that can happen on room join if you keep the right panel
open (which is the default). The `MainSplit` component was not properly testing
for the edge cases of when the resize container would be mounted.

Fixes https://github.com/vector-im/riot-web/issues/10997
This commit is contained in:
J. Ryan Stinnett 2019-10-08 15:43:57 +01:00
parent 7d96517139
commit 1dc2ae007f
2 changed files with 10 additions and 2 deletions
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8
src/components/structures/MainSplit.js
View file

@ -1,5 +1,6 @@
/*
Copyright 2018 New Vector Ltd
Copyright 2019 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -79,9 +80,12 @@ export default class MainSplit extends React.Component {
const wasPanelSet = this.props.panel && !prevProps.panel;
const wasPanelCleared = !this.props.panel && prevProps.panel;
if (wasExpanded || wasPanelSet) {
if (this.resizeContainer && (wasExpanded || wasPanelSet)) {
// The resizer can only be created when **both** expanded and the panel is
// set. Once both are true, the container ref will mount, which is required
// for the resizer to work.
this._createResizer();
} else if (wasCollapsed || wasPanelCleared) {
} else if (this.resizer && (wasCollapsed || wasPanelCleared)) {
this.resizer.detach();
this.resizer = null;
}

4
src/resizer/resizer.js
View file

@ -1,5 +1,6 @@
/*
Copyright 2018 New Vector Ltd
Copyright 2019 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -31,6 +32,9 @@ export default class Resizer {
// TODO move vertical/horizontal to config option/container class
// as it doesn't make sense to mix them within one container/Resizer
constructor(container, distributorCtor, config) {
if (!container) {
throw new Error("Resizer requires a non-null `container` arg");
}
this.container = container;
this.distributorCtor = distributorCtor;
this.config = config;