135 lines
4.6 KiB
TypeScript
135 lines
4.6 KiB
TypeScript
/*
|
|
Copyright 2021 New Vector Ltd
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
import React, { createRef } from "react";
|
|
import "context-filter-polyfill";
|
|
|
|
import UIStore from "../../stores/UIStore";
|
|
|
|
interface IProps {
|
|
backgroundImage?: CanvasImageSource;
|
|
}
|
|
|
|
interface IState {
|
|
// Left Panel image
|
|
lpImage?: string;
|
|
// Left-left panel image
|
|
llpImage?: string;
|
|
}
|
|
|
|
export default class BackdropPanel extends React.PureComponent<IProps, IState> {
|
|
private sizes = {
|
|
leftLeftPanelWidth: 0,
|
|
leftPanelWidth: 0,
|
|
height: 0,
|
|
};
|
|
private style = getComputedStyle(document.documentElement);
|
|
|
|
public state: IState = {};
|
|
|
|
public componentDidMount() {
|
|
UIStore.instance.on("SpacePanel", this.onResize);
|
|
UIStore.instance.on("GroupFilterPanelContainer", this.onResize);
|
|
this.onResize();
|
|
}
|
|
|
|
public componentWillUnmount() {
|
|
UIStore.instance.off("SpacePanel", this.onResize);
|
|
UIStore.instance.on("GroupFilterPanelContainer", this.onResize);
|
|
}
|
|
|
|
public componentDidUpdate(prevProps: IProps) {
|
|
if (prevProps.backgroundImage !== this.props.backgroundImage) {
|
|
this.setState({});
|
|
this.onResize();
|
|
}
|
|
}
|
|
|
|
private onResize = () => {
|
|
if (this.props.backgroundImage) {
|
|
const groupFilterPanelDimensions = UIStore.instance.getElementDimensions("GroupFilterPanelContainer");
|
|
const spacePanelDimensions = UIStore.instance.getElementDimensions("SpacePanel");
|
|
const roomListDimensions = UIStore.instance.getElementDimensions("LeftPanel");
|
|
this.sizes = {
|
|
leftLeftPanelWidth: spacePanelDimensions?.width ?? groupFilterPanelDimensions?.width ?? 0,
|
|
leftPanelWidth: roomListDimensions?.width ?? 0,
|
|
height: UIStore.instance.windowHeight,
|
|
};
|
|
this.refreshBackdropImage();
|
|
}
|
|
};
|
|
|
|
private refreshBackdropImage = (): void => {
|
|
const leftLeftPanelCanvas = document.createElement('canvas');
|
|
const leftPanelCanvas = document.createElement('canvas');
|
|
const leftLeftPanelContext = leftLeftPanelCanvas.getContext("2d");
|
|
const leftPanelContext = leftPanelCanvas.getContext("2d");
|
|
const { leftLeftPanelWidth, height } = this.sizes;
|
|
const { backgroundImage } = this.props;
|
|
|
|
const imageWidth = (backgroundImage as ImageBitmap).width;
|
|
const imageHeight = (backgroundImage as ImageBitmap).height;
|
|
// This value has been chosen to be as close with rendering as the css-only
|
|
// backdrop-filter: blur effect was, mostly takes effect for vertical pictures.
|
|
|
|
leftLeftPanelCanvas.width = leftLeftPanelWidth;
|
|
leftLeftPanelCanvas.height = height;
|
|
leftPanelCanvas.width = window.screen.width * 0.5;
|
|
leftPanelCanvas.height = height;
|
|
|
|
const spacesBlur = this.style.getPropertyValue('--llp-background-blur');
|
|
const roomListBlur = this.style.getPropertyValue('--lp-background-blur');
|
|
|
|
leftLeftPanelContext.filter = `blur(${spacesBlur})`;
|
|
leftPanelContext.filter = `blur(${roomListBlur})`;
|
|
leftLeftPanelContext.drawImage(
|
|
backgroundImage,
|
|
0, 0,
|
|
imageWidth, imageHeight,
|
|
0,
|
|
0,
|
|
leftLeftPanelWidth,
|
|
window.screen.height,
|
|
);
|
|
leftPanelContext.drawImage(
|
|
backgroundImage,
|
|
0, 0,
|
|
imageWidth, imageHeight,
|
|
0,
|
|
0,
|
|
window.screen.width * 0.5,
|
|
window.screen.height,
|
|
);
|
|
this.setState({
|
|
lpImage: leftPanelCanvas.toDataURL('image/jpeg', 1),
|
|
llpImage: leftLeftPanelCanvas.toDataURL('image/jpeg', 1),
|
|
|
|
});
|
|
};
|
|
|
|
public render() {
|
|
if (!this.props.backgroundImage) return null;
|
|
return <div className="mx_BackdropPanel">
|
|
{ this.state?.llpImage !== 'data:,' && <img
|
|
className="mx_BackdropPanel--canvas"
|
|
src={this.state.llpImage} /> }
|
|
|
|
{ this.state?.lpImage !== 'data:,' && <img
|
|
className="mx_BackdropPanel--canvas"
|
|
src={this.state.lpImage} /> }
|
|
</div>;
|
|
}
|
|
}
|