Re: Client side file I/O
you can use php to create a server side script that will create a file from data you will send via post request and alink to the file this way u will create save button that will be a download link to a file in the server side loading shold be even easier since it just a file upload On 10 מאי, 21:45, David Given d...@cowlark.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have a rich app client that wants to be able to construct data algorithmically and save the result; it also wants to be able to read a local file, and process it locally. [No, I do *not* want unrestricted access to the filesystem from the client! I want to do all this via standard file load/save dialogues mediated by the user, like a sane app does.] I can save data by constructing a data: URL, invoking it, and the web browser will pop up a save dialogue to the user; this is ideal. Unfortunately the only way I've found in classic HTML of loading data is to use a file upload field, but that doesn't let the client see the data - --- it sends it straight to the server. Apart from being a waste of time and bandwidth, my app may not *have* a server (instead running entirely locally). Are there any new techniques I'm not aware of that will allow me to prompt the user for a file and then be able to get the contents of the file into a client-side structure so I can process it? I'm willing to use Gears or HTML5 if necessary, but I'd prefer to use stock HTML/JS if possible. - -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ─http://www.cowlark.com─ │ │ There is no Fermi Paradox. Any time space faring aliens make it to │ Earth, the cows get them. --- Sam Starfall -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla -http://enigmail.mozdev.org/ iD8DBQFL6HBNf9E0noFvlzgRAthtAJ9z9Ctqgch4o+GoEals2Is5UCkBpgCcCzXJ DzHZtGbGNaLs777RQLe22dc= =UHjb -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Client side file I/O
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have a rich app client that wants to be able to construct data algorithmically and save the result; it also wants to be able to read a local file, and process it locally. [No, I do *not* want unrestricted access to the filesystem from the client! I want to do all this via standard file load/save dialogues mediated by the user, like a sane app does.] I can save data by constructing a data: URL, invoking it, and the web browser will pop up a save dialogue to the user; this is ideal. Unfortunately the only way I've found in classic HTML of loading data is to use a file upload field, but that doesn't let the client see the data - --- it sends it straight to the server. Apart from being a waste of time and bandwidth, my app may not *have* a server (instead running entirely locally). Are there any new techniques I'm not aware of that will allow me to prompt the user for a file and then be able to get the contents of the file into a client-side structure so I can process it? I'm willing to use Gears or HTML5 if necessary, but I'd prefer to use stock HTML/JS if possible. - -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ─ http://www.cowlark.com ─ │ │ There is no Fermi Paradox. Any time space faring aliens make it to │ Earth, the cows get them. --- Sam Starfall -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFL6HBNf9E0noFvlzgRAthtAJ9z9Ctqgch4o+GoEals2Is5UCkBpgCcCzXJ DzHZtGbGNaLs777RQLe22dc= =UHjb -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Client side file I/O
Are there any new techniques I'm not aware of that will allow me to prompt the user for a file and then be able to get the contents of the file into a client-side structure so I can process it? If your clients have Flash Player 10, you can use Flex to read or write files, *provided* the action is initiated by a user click. See http://www.mikechambers.com/blog/2008/08/20/reading-and-writing-local-files-in-flash-player-10/ Javascript and flash can communicate, so theoretically, you can write GWT + JSNI code, compile a simple flex app that takes the data as parameters, intercepts the user click and pops up the file dialog. You'd have to mess around with GWT, JS and flex though to get it working properly. In practice, its much easier to make a server round trip. You can deploy to Google App Engine - its free for trivial uses. --Sri On 11 May 2010 02:15, David Given d...@cowlark.com wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have a rich app client that wants to be able to construct data algorithmically and save the result; it also wants to be able to read a local file, and process it locally. [No, I do *not* want unrestricted access to the filesystem from the client! I want to do all this via standard file load/save dialogues mediated by the user, like a sane app does.] I can save data by constructing a data: URL, invoking it, and the web browser will pop up a save dialogue to the user; this is ideal. Unfortunately the only way I've found in classic HTML of loading data is to use a file upload field, but that doesn't let the client see the data - --- it sends it straight to the server. Apart from being a waste of time and bandwidth, my app may not *have* a server (instead running entirely locally). Are there any new techniques I'm not aware of that will allow me to prompt the user for a file and then be able to get the contents of the file into a client-side structure so I can process it? I'm willing to use Gears or HTML5 if necessary, but I'd prefer to use stock HTML/JS if possible. - -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ─ http://www.cowlark.com ─ │ │ There is no Fermi Paradox. Any time space faring aliens make it to │ Earth, the cows get them. --- Sam Starfall -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFL6HBNf9E0noFvlzgRAthtAJ9z9Ctqgch4o+GoEals2Is5UCkBpgCcCzXJ DzHZtGbGNaLs777RQLe22dc= =UHjb -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
