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RE: CfC: Messaging FPWD

From: Marcin Hanclik <Marcin.Hanclik@access-company.com>
Date: Fri, 12 Mar 2010 15:00:13 +0100
To: "SULLIVAN, BRYAN L (ATTCINW)" <BS3131@att.com>, "marco.marengo@telecomitalia.it" <marco.marengo@telecomitalia.it>, "public-device-apis@w3.org" <public-device-apis@w3.org>
Message-ID: <FAA1D89C5BAF1142A74AF116630A9F2C2897523E95@OBEEX01.obe.access-company.com>

I agree as well.
The unnecessary burden should be cut as low as possible, it should not come to JS level if not necessary.
BONDI messaging app tells the platform what it wants, instead of searching for it in the whole stream of potential events.


Marcin Hanclik
ACCESS Systems Germany GmbH
Tel: +49-208-8290-6452  |  Fax: +49-208-8290-6465
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E-Mail: marcin.hanclik@access-company.com

-----Original Message-----
From: public-device-apis-request@w3.org [mailto:public-device-apis-request@w3.org] On Behalf Of SULLIVAN, BRYAN L (ATTCINW)
Sent: Friday, March 12, 2010 2:35 PM
To: marco.marengo@telecomitalia.it; public-device-apis@w3.org
Subject: Re: CfC: Messaging FPWD

I agree with Marco. This will otherwise become a burden for developers of webapps, device resources, and a risk factor for reliability (imagine all the bizarre content you would need to be ready to ignore, which depends upon being able to distinguish it from what you want/expect). The filters are in Bondi for a good reason, and they should be here too.

Bryan Sullivan | AT&T

----- Original Message -----
From: public-device-apis-request@w3.org <public-device-apis-request@w3.org>
To: DAP W3C <public-device-apis@w3.org>
Sent: Fri Mar 12 03:21:38 2010
Subject: Re: CfC: Messaging FPWD

before moving to FPWD I'd suggest to extend the subscription method with some basic filters. The rationale is that a generic subscription (e.g. on MessagingManager.EMAIL_TYPE) may generate a big number of callback invocations, forcing each application to implement its own filters.

My proposal for extending the subscribe method is:

int subscribe (in MessagingFilter filter, in OnIncomingMessage messageEventCB, in optional ErrorCallback errorCB);

interface MessagingFilter {
    attribute unsigned short messagingType;
    attribute DOMString from;
    attribute DOMString to;
    attribute DOMString body;

As you can see the basic use case (filtering on message type) is still supported, but it is now possible to receive callbacks only when a particular condition on sender and/or receiver and/or body is verified (eg. an email sent by "public-device-apis@w3.org").

Marco Marengo

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Received on Friday, 12 March 2010 14:00:53 UTC

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