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fix(refresher): correctly select shadow root on older browsers (#21237)

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This commit is contained in:
Liam DeBeasi
2020-05-08 11:54:57 -04:00
committed by GitHub
parent f334e83a43
commit f23f1cb37e
2 changed files with 17 additions and 4 deletions
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8
core/src/components/refresher/refresher.tsx
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@ -3,7 +3,7 @@ import { Component, ComponentInterface, Element, Event, EventEmitter, Host, Meth
import { getTimeGivenProgression } from '../../';
import { getIonMode } from '../../global/ionic-global';
import { Animation, Gesture, GestureDetail, RefresherEventDetail } from '../../interface';
import { clamp, raf } from '../../utils/helpers';
import { clamp, getElementRoot, raf } from '../../utils/helpers';
import { hapticImpact } from '../../utils/native/haptic';
import { createPullingAnimation, createSnapBackAnimation, getRefresherAnimationType, handleScrollWhilePulling, handleScrollWhileRefreshing, setSpinnerOpacity, shouldUseNativeRefresher, transitionEndAsync, translateElement } from './refresher.utils';
@ -272,9 +272,9 @@ export class Refresher implements ComponentInterface {
}
private async setupMDNativeRefresher(contentEl: HTMLIonContentElement, pullingSpinner: HTMLIonSpinnerElement, refreshingSpinner: HTMLIonSpinnerElement) {
const circle = pullingSpinner.shadowRoot!.querySelector('circle');
const circle = getElementRoot(pullingSpinner).querySelector('circle');
const pullingRefresherIcon = this.el.querySelector('ion-refresher-content .refresher-pulling-icon') as HTMLElement;
const refreshingCircle = refreshingSpinner.shadowRoot!.querySelector('circle');
const refreshingCircle = getElementRoot(refreshingSpinner).querySelector('circle');
if (circle !== null && refreshingCircle !== null) {
writeTask(() => {
@ -397,7 +397,7 @@ export class Refresher implements ComponentInterface {
}
this.scrollEl = await contentEl.getScrollElement();
this.backgroundContentEl = contentEl.shadowRoot!.querySelector('#background-content') as HTMLElement;
this.backgroundContentEl = getElementRoot(contentEl).querySelector('#background-content') as HTMLElement;
if (shouldUseNativeRefresher(this.el, getIonMode(this))) {
this.setupNativeRefresher(contentEl);

13
core/src/utils/helpers.ts
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@ -5,6 +5,19 @@ import { Side } from '../interface';
declare const __zone_symbol__requestAnimationFrame: any;
declare const requestAnimationFrame: any;
/**
* Gets the root context of a shadow dom element
* On newer browsers this will be the shadowRoot,
* but for older browser this may just be the
* element itself.
*
* Useful for whenever you need to explicitly
* do "myElement.shadowRoot!.querySelector(...)".
*/
export const getElementRoot = (el: HTMLElement, fallback: HTMLElement = el) => {
return el.shadowRoot || fallback;
};
/**
* Patched version of requestAnimationFrame that avoids ngzone
* Use only when you know ngzone should not run