W3C home > Mailing lists > Public > public-xg-htmlspeech@w3.org > October 2011

Re: Proposal for <reco> tag

From: Dan Burnett <dburnett@voxeo.com>
Date: Thu, 13 Oct 2011 11:49:01 -0400
Cc: "public-xg-htmlspeech@w3.org" <public-xg-htmlspeech@w3.org>
Message-Id: <F426754E-F06E-4236-B4C9-C16777EBE7B0@voxeo.com>
To: Olli@pettay.fi
Yes, I think we should.

On Oct 13, 2011, at 10:29 AM, Olli Pettay wrote:

> IIRC, Glen's proposal hasn't been discussed during conf calls.
> (Not very surprisingly I like especially "The reco tag would not explicitly bind to input fields or other tags,
> instead it would use simple javascript to achieve this." part of it.)
> Should we discuss about it? It would simplify the API spec.
> -Olli
> On 10/04/2011 08:56 PM, Glen Shires wrote:
>> Some of the goals for the <reco> tag that have been discussed in this
>> group are:
>> 1. Make it easy for developers, at least "keep the simple things simple".
>>     Even though he was discussing the <tts> tag, many of the considerations
>>     that Charles listed also apply to <reco>
>> http://lists.w3.org/Archives/Public/public-xg-htmlspeech/2011Jul/0027.html
>>        - Helps the API be more declarative.
>>        - Can control features through the standard DOM
>>        - Better for standard HTML developers (the main target?)
>>        - Provides a standard place to add event handlers.
>>        - Allows for visual control (examples: listening indicator,
>> cancel button)
>>        - Can support GUI related interaction considerations: focus and
>> visibility.
>> 2. Enable a markup-affordance-based permissions model (click to speak) as
>>     Satish describes.
>> http://lists.w3.org/Archives/Public/public-xg-htmlspeech/2011Sep/0019.html.
>>     Preventing click-jacking is important if this is to be used for as
>> one of the
>>     permissions models.  Olli and Satish have described ways to handle
>> this:
>> http://lists.w3.org/Archives/Public/public-xg-htmlspeech/2011Jul/0004.html
>> 3.  From the User/UI perspective, the <reco> tag can show a visual indicator
>>     (for example, an icon of a microphone) that:
>>        - Provides an indication to the user that speech input can be
>> used for these fields.
>>        - By clicking on the icon, the user can simultaneously indicate
>> which field he
>>          wishes to speak into, and that he grants permission for audio
>> to be captured.
>> I believe the following proposal achieves all of these goals.
>> The <reco> tag would have attributes that mirror most of the attributes,
>> event-attributes and methods of the SpeechInputService. For example:
>> <reco continuous="true" languages="en-AU" grammars="<builtin:datetime>"
>>          onresult="processResult()"/>
>> A comma-separated list of items can also be specified, for example:
>> <reco continuous="true" languages="en-AU, en-GB"
>>          grammars="<builtin:datetime>, http://example.com/mygrammar.xml">
>> The reco tag would not explicitly bind to input fields or other tags,
>> instead it would use simple javascript to achieve this.  Keeping the
>> "keeping simple things simple" mindset, bindings can be achieved with
>> inline javascript code that developers can easily cut-and-paste along
>> with the rest of the markup.  See attached html file for examples.  (If
>> you open this html file in Chrome, the examples are functional...click
>> on the microphone icon to see them in action. I've emulated the reco tag
>> using Chrome's current experimental syntax.  I've also attached a
>> screenshot in case you don't have Chrome handy.)  The use of javascript
>> also provides the flexibility to enable advanced developers to create
>> complex interactions, while keeping the browser implementation and
>> syntax simple.
>> While these examples are not purely declarative in the strict sense,
>> they achieve the spirit of this goal in that developers can easily
>> specify speech input, without having to connect multiple diverse
>> sections of the file together (they don't have to connect the javascript
>> section of the file to the html markup section). Instead, developers can
>> use the common practice of copying snippets of markup to "keep the
>> simple things simple".
Received on Thursday, 13 October 2011 15:49:41 UTC

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