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Code Issues Releases Wiki Activity

Wire up normalizeWheelEvent() 

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>
pull/21833/head
Šimon Brandner 2021-04-22 14:56:35 +02:00
parent ad53b0e2e2
commit 2e6397d8aa
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GPG Key ID: 9760693FDD98A790
1 changed files with 5 additions and 2 deletions
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7
src/components/views/elements/ImageView.tsx
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@ -32,13 +32,14 @@ import dis from '../../../dispatcher/dispatcher';
import {replaceableComponent} from "../../../utils/replaceableComponent"; import {replaceableComponent} from "../../../utils/replaceableComponent";
import {RoomPermalinkCreator} from "../../../utils/permalinks/Permalinks" import {RoomPermalinkCreator} from "../../../utils/permalinks/Permalinks"
import {MatrixEvent} from "matrix-js-sdk/src/models/event"; import {MatrixEvent} from "matrix-js-sdk/src/models/event";
import {normalizeWheelEvent} from "../../../utils/Mouse";
const MIN_ZOOM = 100; const MIN_ZOOM = 100;
const MAX_ZOOM = 300; const MAX_ZOOM = 300;
// This is used for the buttons // This is used for the buttons
const ZOOM_STEP = 10; const ZOOM_STEP = 10;
// This is used for mouse wheel events // This is used for mouse wheel events
const ZOOM_COEFFICIENT = 7.5; const ZOOM_COEFFICIENT = 0.5;
// If we have moved only this much we can zoom // If we have moved only this much we can zoom
const ZOOM_DISTANCE = 10; const ZOOM_DISTANCE = 10;
@ -115,7 +116,9 @@ export default class ImageView extends React.Component<IProps, IState> {
private onWheel = (ev: WheelEvent) => { private onWheel = (ev: WheelEvent) => {
ev.stopPropagation(); ev.stopPropagation();
ev.preventDefault(); ev.preventDefault();
const newZoom = this.state.zoom - (ev.deltaY * ZOOM_COEFFICIENT);
const {deltaY} = normalizeWheelEvent(ev);
const newZoom = this.state.zoom - (deltaY * ZOOM_COEFFICIENT);
if (newZoom <= MIN_ZOOM) { if (newZoom <= MIN_ZOOM) {
this.setState({ this.setState({