71 lines
2.2 KiB
JavaScript
71 lines
2.2 KiB
JavaScript
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// 消息类型
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const messageType = {
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config: 0,
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writeFile: 1, // 写文件
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};
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// @ts-ignore SDK实际有暴露这几个API，但是协议里没有
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const { createSharedArrayBuffer, getFileSystemManager } = worker;
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const fs = getFileSystemManager ? getFileSystemManager() : null;
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function compareVersion(_v1, _v2) {
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return (_v1
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.split('.')
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.map(v => v.padStart(2, '0'))
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.join('')
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>= _v2
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.split('.')
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.map(v => v.padStart(2, '0'))
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.join(''));
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}
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worker.onMessage((res) => {
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const { type, payload } = res;
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if (type === messageType.writeFile) {
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const { filePath, data, isSharedBuffer } = payload;
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let content = data;
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if (isSharedBuffer) {
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content = data.buffer;
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}
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if (!fs) {
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console.error('getFileSystemManager不存在');
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return;
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}
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fs.writeFile({
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filePath,
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data: content,
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success: () => {
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worker.postMessage({
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type: messageType.writeFile,
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payload: {
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isok: true,
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filePath,
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},
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});
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},
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fail: (err) => {
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worker.postMessage({
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type: messageType.writeFile,
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payload: {
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isok: false,
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filePath,
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err,
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},
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});
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},
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});
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}
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if (type === messageType.config) {
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const { systemInfo } = payload;
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const { platform, version } = systemInfo;
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// 安卓才需要使用worker写文件
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const isAndroid = platform.toLocaleLowerCase() === 'android';
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// 8.0.18以下版本出现写文件报错
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const isClientValid = compareVersion(version, '8.0.18');
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worker.postMessage({
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type: messageType.config,
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payload: {
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supportWorkerFs: isAndroid && !!fs && isClientValid,
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supportSharedBuffer: isAndroid && !!createSharedArrayBuffer,
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},
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});
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}
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});
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