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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | 7x 7x 7x 7x 7x 123x 123x 123x 123x 123x 32x 32x 32x 32x 32x 32x 32x 24x 24x 24x 2x 22x 53x 52x 3x 49x | import { NodeFileSystemHandle } from './NodeFileSystemHandle';
import { NodeFileSystemSyncAccessHandle } from './NodeFileSystemSyncAccessHandle';
import { assertCanWrite, basename, ctx as createCtx, newNotAllowedError, newNoModificationAllowedError } from './util';
import { NodeFileSystemWritableFileStream } from './NodeFileSystemWritableFileStream';
import type { NodeFsaContext, NodeFsaFs } from './types';
import type { IFileSystemFileHandle, IFileSystemSyncAccessHandle } from '../fsa/types';
export class NodeFileSystemFileHandle extends NodeFileSystemHandle implements IFileSystemFileHandle {
protected readonly ctx: NodeFsaContext;
constructor(
protected readonly fs: NodeFsaFs,
public readonly __path: string,
ctx: Partial<NodeFsaContext> = {},
) {
ctx = createCtx(ctx);
super('file', basename(__path, ctx.separator!));
this.ctx = ctx as NodeFsaContext;
}
/**
* Returns a {@link Promise} which resolves to a {@link File} object
* representing the state on disk of the entry represented by the handle.
*
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle/getFile
*/
public async getFile(): Promise<File> {
try {
const path = this.__path;
const promises = this.fs.promises;
const stats = await promises.stat(path);
// TODO: Once implemented, use promises.readAsBlob() instead of promises.readFile().
const data = await promises.readFile(path);
const file = new File([data as BlobPart], this.name, { lastModified: stats.mtime.getTime() });
return file;
} catch (error) {
Iif (error instanceof DOMException) throw error;
Iif (error && typeof error === 'object') {
switch (error.code) {
case 'EPERM':
case 'EACCES':
throw newNotAllowedError();
}
}
throw error;
}
}
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle/createSyncAccessHandle
*/
public get createSyncAccessHandle(): undefined | (() => Promise<IFileSystemSyncAccessHandle>) {
Iif (!this.ctx.syncHandleAllowed) return undefined;
return async () => {
if (this.ctx.locks.isLocked(this.__path)) {
throw newNoModificationAllowedError();
}
return new NodeFileSystemSyncAccessHandle(this.fs, this.__path, this.ctx);
};
}
/**
* @see https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle/createWritable
*/
public async createWritable(
{ keepExistingData = false }: CreateWritableOptions = { keepExistingData: false },
): Promise<NodeFileSystemWritableFileStream> {
assertCanWrite(this.ctx.mode);
if (this.ctx.locks.isLocked(this.__path)) {
throw newNoModificationAllowedError();
}
return new NodeFileSystemWritableFileStream(this.fs, this.__path, keepExistingData, this.ctx);
}
}
export interface CreateWritableOptions {
keepExistingData?: boolean;
}
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