HTML5ROCKS의 File API 관련 문서 검토~

안녕하세요. 삼성전자의 이원석입니다.

아래와 같이 HTML5ROCKS에 올라온 File API 관련 문서들을 검토해 보면 좋을 것
같아서 메일 보냅니다.

 

1. Reading local files in JavaScript [1]

2. Exploring the FileSystem APIs [2] 

3. The Synchronous FileSystem API for Workers [3]

 

[2]를 보면 File API 활용이 필요한 Use Case는 아래와 같습니다. 아주 유용한
API 입니다~ ;)

각 문서를 KIG 회의때 소개해 주실 Volunteer를 찾습니다~ 바로 지원해주세요~^^
참고로 발표는 2012년 첫번째 회의가 될 것 같습니다~ ;)

 

1.	Persistent uploader

*	When a file or directory is selected for upload, it copies the
files into a local sandbox and uploads a chunk at a time.
*	Uploads can be restarted after browser crashes, network
interruptions, etc.

2.	Video game, music, or other app with lots of media assets

*	It downloads one or several large tarballs, and expands them
locally into a directory structure.
*	The same download works on any operating system.
*	It can manage prefetching just the next-to-be-needed assets in the
background, so going to the next game level or activating a new feature
doesn't require waiting for a download.
*	It uses those assets directly from its local cache, by direct file
reads or by handing local URIs to image or video tags, WebGL asset loaders,
etc.
*	The files may be of arbitrary binary format.
*	On the server side, a compressed tarball will often be much smaller
than a collection of separately-compressed files. Also, 1 tarball instead
of 1000 little files will involve fewer seeks, all else being equal.

3.	Audio/Photo editor with offline access or local cache for speed

*	The data blobs are potentially quite large, and are read-write.
*	It may want to do partial writes to files (ovewriting just the
ID3/EXIF tags, for example).
*	The ability to organize project files by creating directories would
be useful.
*	Edited files should be accessable by client-side applications
[iTunes, Picasa].

4.	Offline video viewer

*	It downloads large files (>1GB) for later viewing.
*	It needs efficient seek + streaming.
*	It must be able to hand a URI to the video tag.
*	It should enable access to partly-downloaded files e.g. to let you
watch the first episode of the DVD even if your download didn't complete
before you got on the plane.
*	It should be able to pull a single episode out of the middle of a
download and give just that to the video tag.

5.	Offline Web Mail Client

*	Downloads attachments and stores them locally.
*	Caches user-selected attachments for later upload.
*	Needs to be able to refer to cached attachments and image
thumbnails for display and upload.
*	Should be able to trigger the UA's download manager just as if
talking to a server.
*	Should be able to upload an email with attachments as a multipart
post, rather than sending a file at a time in an XHR.

 

[1] http://www.html5rocks.com/en/tutorials/file/dndfiles/

[2] http://www.html5rocks.com/en/tutorials/file/filesystem/

[3] http://www.html5rocks.com/en/tutorials/file/filesystem-sync/

 

이원석 드림.

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이 원 석 (Wonsuk, Lee) / Senior Engineer, Ph.D

SAMSUNG ELECTRONICS Co., LTD. (三星電子)

Mobile: +82-10-5800-3997

E-mail:  <mailto:wonsuk11.lee@samsung.com> wonsuk11.lee@samsung.com

 <http://www.wonsuk73.com/> http://www.wonsuk73.com/, twitter: @wonsuk73

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