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FileSystem

const dirHandle = await window.showDirectoryPicker();

const saveFileHandle = await self.showSaveFilePicker({
suggestedName: 'Untitled Text.txt',
types: [
{
description: 'Text documents',
accept: {
'text/plain': ['.txt'],
},
},
],
});

const openFileHandle = await self.showOpenFilePicker({
// desktop, documents, downloads, music, pictures, videos
startIn: 'pictures',
// startIn: dirHandle,
});

// 创建目录
const neoDirHandle = await dirHandle.getDirectoryHandle('neo', { create: true });
// 创建文件
const readmeFileHandle = await neoDirHandle.getFileHandle('README.txt', { create: true });
// 删除文件
await neoDirHandle.removeEntry('README.txt');
// 递归删除目录
await dirHandle.removeEntry('neo', { recursive: true });

Origin Private File System

  • OPFS - Origin Private File System
  • chromestatus
    • dev 94, trail 95, shiping 99
// FileSystemDirectoryHandle
const root = await navigator.storage.getDirectory();

Drop as Handle

drop-handle.js
elem.addEventListener('dragover', (e) => {
// Prevent navigation.
e.preventDefault();
});

elem.addEventListener('drop', async (e) => {
// Prevent navigation.
e.preventDefault();
// Process all of the items.
for (const item of e.dataTransfer.items) {
// Careful: `kind` will be 'file' for both file
// _and_ directory entries.
if (item.kind === 'file') {
const entry = await item.getAsFileSystemHandle();
if (entry.kind === 'directory') {
handleDirectoryEntry(entry);
} else {
handleFileEntry(entry);
}
}
}
});