W3C home > Mailing lists > Public > public-coremob-camera@w3.org > January 2013

RE: Update

From: <john.kneeland@nokia.com>
Date: Thu, 3 Jan 2013 00:46:26 +0000
To: <tomomi.imura@nokia.com>, <ij@w3.org>, <tobie@fb.com>
CC: <public-coremob-camera@w3.org>
Message-ID: <3B3ABB8783CEF14AABDF0E26A3DE908A01CDF0F1@008-AM1MPN2-082.mgdnok.nokia.com>
So complicated that it is kind of funny!

If we have to use Phonegap, we should be clear in our messaging that our goal is to have this running in major browsers, and list the missing parts to hopefully pressure those people! I like the way Tobie framed it: that Phonegap use is considered "scaffolding" until the browsers are fully built to handle this :)

And just as far as I know, the people at RIM are not having these issues with BB10 (which has pretty damn epic HTML5 performance). So if we are looking for a device that can be held up as the "proof the whole thing can work in a browser" model, we could use them.

-----Original Message-----
From: Imura Tomomi (Nokia-DX/SiliconValley) 
Sent: Wednesday, January 02, 2013 4:39 PM
To: ij@w3.org; tobie@fb.com
Cc: public-coremob-camera@w3.org
Subject: Re: Update

Hi everybody!

Happy new year!

On 1/2/13 1:06 PM, "ext Ian Jacobs" <ij@w3.org> wrote:

>On 2 Jan 2013, at 8:42 AM, Tobie Langel wrote:
>> Hi all,
>> Just a quick note (I'm still on PTO) that I'm increasingly concerned 
>>we  might not find a single mobile browser that meets the various 
>>requirements  we need to make a fully functional app. E.g.:
>> - Mobile browsers that support HTML Media Capture: Chrome, Android.
>> - Mobile browsers that support storing blobs in IndexedDB: Firefox.
>> Although this somewhat makes sense as it is what we're trying to show 
>>and  improve with Coremob, it might be a serious concern for the MWC 
>> We're investigating workarounds right now and we'll have an update 
>Hi Tobie,
>Thanks for the update. I wish you luck in finding a solution!
>One backup for the MWC app would be simply to show the photo gallery on 
>different devices. That's obviously less interesting than the full
>camera+gallery combo.
>Do you think you'll know the answer to your question in the next 10 days?

Currently, I am working on the workaround for Chrome Mobile for Android.
This browser is still stuck at ver 18, which uses deprecated/buggy indexedDB, so it is almost like I need to write a whole functions only for the Chrome.

iDB issue on Chrome 18:
- vender prefix
- onupgradeneeded event
- using constant READ_WRITE instead of 'readwrite' string for IDBTransaction

- autoIncrement for DB key (a real problem- I am relying on auto-incremated id to track photos stored in DB)  Probably more

I try to get around with most issue, without dumbing down Firefox and newer Chrome.
My code is in process of getting messy now.

About blob/iDB issue, I can probably just store data urls (strings) instead of blob objects.
Chrome (in general, even new versions like Canary) does not support blob in iDB, but data url strings work just fine when I tested.
So hopefully, I can figure out to make this work on Chrome mobile too.

For the browsers which don't support indexedDB at all, e.g. iOS Safari, I probably have to use alternative dumb-down version of the app.
Or PhoneGap.

IE10 does support iDB (and storing blob too) however, the File Reader is disabled. (apparently, implemented in IE10 but disabled for WP8).
So I am thinking about using PhoneGap. Also I am thinking about asking Microsoft guys how to enable the feature. (Possible? Does IE has such feature like Chrome??? Probably not.) Because I work for Nokia, the priority of creating PhoneGap app is WP8 > iOS, if I don't have time.

Anyway, I will let you know the status on Chrome 18 on Android by the end of this week.

>> Some of the options imply bypassing IDB altogether for the MWC app, 
>>or  going with a PhoneGap wrapped app native app instead, but both 
>>have their  own issues and imply more work.
>> Best,
>> --tobie
>Ian Jacobs (ij@w3.org)    http://www.w3.org/People/Jacobs/
>Tel:                                      +1 718 260 9447


 *  Tomomi Imura
 *  HTML5 Evangelist
 *  Developer Relations
 *  tomomi.imura@nokia.com
 *  +1.408.368.6848

Received on Thursday, 3 January 2013 00:47:07 UTC

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