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Fix persistend element location not updating

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As hopefully all explained in comment
This commit is contained in:
David Baker 2018-07-27 14:33:05 +01:00
parent 6093f0ca68
commit 1fe0f04986
1 changed files with 21 additions and 3 deletions
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24
src/components/views/elements/PersistedElement.js
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@ -20,6 +20,8 @@ import PropTypes from 'prop-types';
import ResizeObserver from 'resize-observer-polyfill'; import ResizeObserver from 'resize-observer-polyfill';
import dis from '../../../dispatcher';
// Shamelessly ripped off Modal.js. There's probably a better way // Shamelessly ripped off Modal.js. There's probably a better way
// of doing reusable widgets like dialog boxes & menus where we go and // of doing reusable widgets like dialog boxes & menus where we go and
// pass in a custom control as the actual body. // pass in a custom control as the actual body.
@ -64,9 +66,17 @@ export default class PersistedElement extends React.Component {
super(); super();
this.collectChildContainer = this.collectChildContainer.bind(this); this.collectChildContainer = this.collectChildContainer.bind(this);
this.collectChild = this.collectChild.bind(this); this.collectChild = this.collectChild.bind(this);
this._onContainerResize = this._onContainerResize.bind(this); this._repositionChild = this._repositionChild.bind(this);
this._onAction = this._onAction.bind(this);
this.resizeObserver = new ResizeObserver(this._onContainerResize); this.resizeObserver = new ResizeObserver(this._repositionChild);
// Annoyingly, a resize observer is insufficient, since we also care
// about when the element moves on the screen without changing its
// dimensions. Doesn't look like there's a ResizeObserver equivalent
// for this, so we bodge it by listening for document resize and
// the timeline_resize action.
window.addEventListener('resize', this._repositionChild);
this._dispatcherRef = dis.register(this._onAction);
} }
/** /**
@ -113,9 +123,17 @@ export default class PersistedElement extends React.Component {
componentWillUnmount() { componentWillUnmount() {
this.updateChildVisibility(this.child, false); this.updateChildVisibility(this.child, false);
this.resizeObserver.disconnect(); this.resizeObserver.disconnect();
window.removeEventListener('resize', this._repositionChild);
dis.unregister(this._dispatcherRef);
} }
_onContainerResize() { _onAction(payload) {
if (payload.action === 'timeline_resize') {
this._repositionChild();
}
}
_repositionChild() {
this.updateChildPosition(this.child, this.childContainer); this.updateChildPosition(this.child, this.childContainer);
} }