107 lines
3.4 KiB
TypeScript
107 lines
3.4 KiB
TypeScript
/*
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Copyright 2021 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { MatrixEvent } from "matrix-js-sdk/src/matrix";
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import React from "react";
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import classNames from "classnames";
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import { Icon as DownloadIcon } from "../../../../res/img/download.svg";
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import { MediaEventHelper } from "../../../utils/MediaEventHelper";
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import { RovingAccessibleTooltipButton } from "../../../accessibility/RovingTabIndex";
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import Spinner from "../elements/Spinner";
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import { _t, _td } from "../../../languageHandler";
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import { FileDownloader } from "../../../utils/FileDownloader";
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interface IProps {
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mxEvent: MatrixEvent;
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// XXX: It can take a cycle or two for the MessageActionBar to have all the props/setup
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// required to get us a MediaEventHelper, so we use a getter function instead to prod for
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// one.
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mediaEventHelperGet: () => MediaEventHelper | undefined;
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}
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interface IState {
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loading: boolean;
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blob?: Blob;
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tooltip: string;
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}
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export default class DownloadActionButton extends React.PureComponent<IProps, IState> {
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private downloader = new FileDownloader();
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public constructor(props: IProps) {
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super(props);
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this.state = {
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loading: false,
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tooltip: _td("Downloading"),
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};
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}
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private onDownloadClick = async (): Promise<void> => {
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const mediaEventHelper = this.props.mediaEventHelperGet();
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if (this.state.loading || !mediaEventHelper) return;
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if (mediaEventHelper.media.isEncrypted) {
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this.setState({ tooltip: _td("Decrypting") });
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}
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this.setState({ loading: true });
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if (this.state.blob) {
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// Cheat and trigger a download, again.
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return this.doDownload(this.state.blob);
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}
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const blob = await mediaEventHelper.sourceBlob.value;
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this.setState({ blob });
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await this.doDownload(blob);
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};
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private async doDownload(blob: Blob): Promise<void> {
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await this.downloader.download({
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blob,
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name: this.props.mediaEventHelperGet()!.fileName,
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});
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this.setState({ loading: false });
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}
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public render(): React.ReactNode {
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let spinner: JSX.Element | undefined;
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if (this.state.loading) {
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spinner = <Spinner w={18} h={18} />;
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}
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const classes = classNames({
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mx_MessageActionBar_iconButton: true,
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mx_MessageActionBar_downloadButton: true,
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mx_MessageActionBar_downloadSpinnerButton: !!spinner,
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});
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return (
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<RovingAccessibleTooltipButton
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className={classes}
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title={spinner ? _t(this.state.tooltip) : _t("Download")}
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onClick={this.onDownloadClick}
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disabled={!!spinner}
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>
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<DownloadIcon />
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{spinner}
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</RovingAccessibleTooltipButton>
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);
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}
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}
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