fb89b45c06
With help from Palid. This does two major things: 1. Makes the tile part of a file body clickable to trigger a download. 2. Refactors a lot of the recyclable code out of the DownloadActionButton in favour of a utility. It's not a perfect refactoring, but it sets the stage for future work in the area (if needed). The refactoring still has a heavy reliance on being supplied an iframe, but simplifies the DownloadActionButton and a hair of the MFileBody download code. In future, we'd probably want to make the iframe completely managed by the FileDownloader rather than have it only sometimes manage a hidden iframe.
97 lines
3 KiB
TypeScript
97 lines
3 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";
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import { MediaEventHelper } from "../../../utils/MediaEventHelper";
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import React from "react";
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import { RovingAccessibleTooltipButton } from "../../../accessibility/RovingTabIndex";
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import Spinner from "../elements/Spinner";
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import classNames from "classnames";
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import { _t } from "../../../languageHandler";
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import { replaceableComponent } from "../../../utils/replaceableComponent";
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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;
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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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}
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@replaceableComponent("views.messages.DownloadActionButton")
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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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};
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}
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private onDownloadClick = async () => {
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if (this.state.loading) return;
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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();
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}
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const blob = await this.props.mediaEventHelperGet().sourceBlob.value;
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this.setState({ blob });
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await this.doDownload();
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};
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private async doDownload() {
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await this.downloader.download({
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blob: this.state.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() {
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let spinner: JSX.Element;
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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_maskButton': 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 <RovingAccessibleTooltipButton
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className={classes}
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title={spinner ? _t("Downloading") : _t("Download")}
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onClick={this.onDownloadClick}
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disabled={!!spinner}
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>
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{ spinner }
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</RovingAccessibleTooltipButton>;
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}
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}
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