Using the HTML5 Filesystem API

Paperback Engels 2011 9781449309459
Verwachte levertijd ongeveer 9 werkdagen

Samenvatting

Several client-side storage options are available to web applications, but one area that's been lacking until now is file I/O—the ability to organize binary data into a true hierarchy of folders. That has changed with the advent of HTML5. With this book, you'll learn how to provide your applications with a file system that enables them to create, read, and write files and folders in a sandboxed section of the user's local filesystem.

Author Eric Bidelman, a Senior Developer Programs Engineer on the Google Chrome team, provides several techniques and complete code examples for working with the HTML5 Filesystem API.Learn common operations for working with files and directoriesBecome familiar with HTML5's storage use cases and security considerationsUnderstand the storage options available, including temporary, persistent, and unlimitedWrite text or append data to an existing user fileImport files into your application by accessing a user's hard driveGet techniques for using a file with filesystem, blob, or data URLsUse the synchronous version of the HTML5 Filesystem API within a Web Worker context

Specificaties

ISBN13:9781449309459
Taal:Engels
Bindwijze:paperback
Aantal pagina's:74

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Inhoudsopgave

Preface

Chapter 1: Introduction

Chapter 2: Storage and Quota

Storage Types

Quota Management API

Chapter 3: Getting Started

Chapter 4: Working with Files

The FileEntry

Creating a File

Reading a File by Name

Writing to a File

Importing Files

Removing Files

Chapter 5: Working with Directories

The DirectoryEntry

Creating Directories

Reading the Contents of a Directory

Removing Directories

Chapter 6: Copying, Renaming, and Moving Entries

Chapter 7: Using Files

Filesystem URLs

Blob URLs

Data URLs

Chapter 8: The Synchronous API

Introduction

Opening a Filesystem

Working with Files and Directories

Handling Errors

Examples

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        Using the HTML5 Filesystem API