kura/lib/FileWriterAsync.js

The FileSystem API abstraction library.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileWriterAsync = void 0;
class FileWriterAsync {
    constructor(fileWriter) {
        this.fileWriter = fileWriter;
    }
    get length() {
        return this.fileWriter.length;
    }
    get position() {
        return this.fileWriter.position;
    }
    async appendFile(data) {
        this.seek(this.length);
        await this.write(data);
    }
    seek(offset) {
        this.fileWriter.seek(offset);
    }
    truncate(size) {
        return new Promise((resolve, reject) => {
            this.fileWriter.onwriteend = () => resolve();
            this.fileWriter.onerror = (err) => reject(err);
            this.fileWriter.truncate(size);
        });
    }
    write(data) {
        return new Promise((resolve, reject) => {
            this.fileWriter.onwriteend = () => resolve();
            this.fileWriter.onerror = (err) => reject(err);
            this.fileWriter.write(data);
        });
    }
    async writeFile(data) {
        await this.truncate(0);
        await this.write(data);
    }
}
exports.FileWriterAsync = FileWriterAsync;
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