B
Media Types, Features and Capabilities

This appendix contains information about media types, their features and capabilities. Topics include:

B.1 OracleAS Wireless CSS Media Query and MXML Media Attribute Syntax

The CSS Media Query syntax consists of two parts:

Media Type--specifies a particular media as defined by CSS2 specification. Examples of media type values are screen, handheld, tty, tv, aural.
Media Feature or Capability--specifies a particular capability of a target media (such as color capability or sound capability).

The CSS Media queries allow media type and media features to be used together in Query style syntax. For example:

media="handheld and (color)"

The query syntax also allows you to specify not and only conditions (by default only is assumed if nothing is specified). For example:

mxml:media="not all and (color)"

The Media Query Syntax is defined in CSS3 Media queries at: http://www.w3.org/TR/css3-mediaqueries

B.2 OracleAS Wireless Supported Media Types

OracleAS Wireless supports the following Media Types (in mxml:media attribute):

all--all media types
screen--computer screens, continuous, visual, both interactive and static
handheld--handheld devices, both continuous and paged, interactive and static
tty--portable devices with limited display capabilities, continuous (that is, not paged) and fixed-pitch character grid
aural--for aural/voice interfaces

B.3 OracleAS Wireless Supported Media Features

B.3.1 Media Features Specified in CSS3 Media Queries Specification

A list of Media Features are specified by CSS3 Media Queries specification. OracleAS Wireless will only support the following set of media features:

Media Feature: color

Description: Specifies the number of bits per color component supported by the target device

min-property: min-color

max-property: max-color

Values: <integer>

Applies To: Visual Media
Media Feature: monochrome

Description: Specifies number of bits per pixel supported by the target (monochrome) device

min-property: min-monochrome

max-property: max-monochrome

Values: <integer>

Applies To: Visual Media
Media Feature: device-width

Description: Specifies the screen height requirements of the target device

min-property: minidevice-width

max-property: max-device-width

Values: <length> (Supported length units in, cm, mm, pt, pc, px, em)

Applies To: Visual Media
Media Feature: device-height

Description: Specifies the screen height requirements of the target device

min-property: min-device-height

max-property: max-device-height

Values: <length> (Supported length units in, cm, mm, pt, pc, px, em)

Applies To: Visual Media
Media Feature: device-aspect-ratio

Description: Specifies the aspect ratio requirements of the target device

min-property: min-device-aspect-ratio ("min-device-aspect-ratio:1" implies Portrait)

max-property: max-device-aspect-ratio ("max-device-aspect-ratio:1" implies Landscape)

Values: <ratio> (<integer>/<integer>)

Applies To: Visual Media
Media Feature: grid

Description: Specifies grid versus bitmap requirements of the target device

min-property: No

max-property: No

Values: <integer> (Value of 1 indicates the device display type that is grid-based and a value of 0 indicates a bitmap display type)

Applies To: Visual Media

B.3.2 Extended Media Feature Set

The following is an extended list of media features defined by OracleAS Wireless:

Media Feature: paged

Description: Specifies paged versus continuous medium

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the paged device medium (such as a WML Phone device or printer) and value of 0 indicates a continuous device medium such as a desktop screen

Applies To: Visual Media

B.4 OracleAS Wireless-defined Capabilities

B.4.1 Device/Software UA Capabilities

Media Feature: text-input

Description: Specifies if device is capable if text input. Devices at the minimum are assumed to have a phone key pad

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the device supports text input and a value of 0 indicates a device only supports a phone keypad

Applies To: All Media
Media Feature: keyboard

Description: Specifies the type of keyboard support

min-property: No

max-property: No

Values: PhoneKeypad | Qwerty | Disambiguating

Applies To: All Media
Media Feature: tables

Description: Specifies if the target medium supports rendering layouts (tables, grids)

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the device supports layout rendering and value of 0 indicates no native support for layout rendering

Applies To: Visual Media
Media Feature: speech-grammar

Description: Specifies if the target platform supports speech grammars

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the device supports speech grammars and value of 0 indicates the device does not have speech grammars capability

Applies To: All Media
Media Feature: text-to-speech

Description: Specifies if the target platform has text-to-speech capabilities when a page is rendered in Aural mode

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the device supports text-to-speech, and value of 0 indicates device does not have text-to-speech capability

Applies To: Aural Media
Media Feature: record-speech

Description: Specifies if the target platform supports speech recording

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the device can record speech, and value of 0 indicates device has no speech record

Applies To: All Media

B.4.2 Network Capabilities and Characteristics

Media Feature: async

Description: Specifies the network mode of the target device

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the device is currently operating in messaging mode in which the request and response are not blocked calls to the remote resource. Value of 0 means device is operating in a synchronous mode, where each request has a response

Applies To: All Media
Media Feature: voice-call

Description: Specifies if the network allows voice-call to be initiated from the device agent

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the voice-call can be initiated and a Value of 0 indicates voice-calls cannot be initiated

Applies To: All Media
Media Feature: call-control

Description: Specifies if the network allows call control of voice calls initiated from the device's agent. Call Control enables features such as transfer

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the call-control is supported and Value of 0 indicates call-control is not supported

Applies To: All Media
Media Feature: email

Description: Specifies if the network allows email messages to be initiated from the device's agent

min-property: No

max-property: No

Values: <integer>. Value of 1 indicates the email can be initiated and Value of 0 indicates email cannot be initiated

Applies To: All Media
Media Feature: content-length

Description: Specifies the minimum and maximum content length size supported by the network

min-property: Yes

max-property: Yes

Values: <Message Length> (size in bytes, for example: "content-length: 10")

Applies To: All Media

B.5 Sample Media Queries

Table B-1 Sample Media Queries

Device	Query
Desktop browsers	@media screen
Handheld (all PDAs, WML/HDML phones, Industrial devices, XHTML phone browser)	@media handheld
HDML/WML browsers in phones	@media handheld and (tables: 0)
Color PDAs (pocketpc), Color XHTML phones	@media handheld and (color)
Palms (Palm VII and Palm V) - Monochrome devices	@media handheld and (monochrome)
Two Way Pagers/SMS devices	@media all and (async)
Voice devices	@media aural

Note:

@media handheld will map PDAs and HDML/WML phones. If media is not specified, the implied media is always all.

B Media Types, Features and Capabilities