Web specifications support in Opera Presto 2.11

Last update

2012-06-29

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Overview

Web specifications added since Opera Presto 2.10

• core-integration-points 295 through 306
• core-integration-points 307 through 310
• core-integration-points 311 through 319
• core-integration-points 320 through 323
• core-integration-points 324 through 330
• core-integration-points 331 through 337
• core-integration-points 338 through 345
• core-integration-points 346 through 351

Opera Presto web specification support pages

Overview

Opera Presto rendering engine

This document and its associated support tables apply specifically to the Opera Presto 2.11 rendering engine. It incorporates Opera Presto web specification support with the latest Core Milestone and integration point. Changes and additions occurring since Opera Presto 2.10 are identified with their specific Core Milestone integration points. Please see the following Core Milestone integration points added since Opera Presto 2.10 topic.

Opera desktop, device, and mobile products

Opera products use and depend upon various parts of the Opera Presto rendering engine and its web specification features. It is important to note that while the latest Opera Presto rendering engine has incorporated new web specification features, they may not have been added to the latest released versions of Opera products.

The Opera user agent string

Opera products will identify which Opera Presto version and core-integration-point they are using in their user agent string. Depending on your Opera product, the Opera user agent string is placed in the "About Opera" page, found by typing opera:about in the address bar, or by clicking "Help > About Opera" in the Menu.

Example:

Opera/9.80 (Windows NT 5.1; U; Edition Next; en) Presto/2.11.306 Version/12.xx

This example user agent string describes the Opera Presto 2.11 (Presto/2.11) rendering engine, incorporating core-integration-point 306 (.305).

A high-level overview of current web specifications support in Opera products is available on opera.com at: Web specifications support in Opera products: an overview.

Opera articles

For further reference, and where applicable, Opera web specification support table documents now contain hyperlinks to Opera technical articles written by leading subject matter experts. These are sourced from Opera's extensive developer website, dev.opera.com.

Web specifications added since Opera Presto 2.10

Important note

The following web specification items integrated into the Opera Presto rendering engine are identified with their (Presto/2.11.xxx) core-integration-point numbers. This identifies which web specifications are included with Opera product versions, as shown in their user agent strings. Please see the preceding description in The Opera user agent string topic, to associate Opera product versions with the Opera Presto core-integration-points they contain.

Implemented in core-integration-points 295 through 306

DOM support

Add support for DOM Events Level 3 - Key Events (Presto/2.11.295)

• keydown, keypress, keyup events provide the properties defined by the specification below.
• Legacy key attributes keyCode, which, and charCode support added/updated
• keyCode values reported aligned with common internet practice
• Navigation, function, and modifier keys no longer fire keypress events
• On key repeat, keydown-keypress sequences are now reported
• During IME composition, keydown and keyup will be delivered as required by the specification
• A number of smaller compatibility issues have been addressed
• See: Document Object Model (DOM) Level 3 Events Specification

Upgrade to full support for Range and Selection (Presto/2.11.305)

• See: DOM4: Ranges
• See: HTML Editing APIs: Selections

Implemented in core-integration-points 307 through 310

CSS

Add support for certain -webkit- prefixes (Presto/2.11.310)

• See: Opera Mobile Emulator build with experimental WebKit prefix support

Implemented in core-integration-points 311 through 319

Fullscreen API

Implement Draft 7 of Fullscreen API (Presto/2.11.311)

• See: Fullscreen Standard

High Resolution Time

Add initial support for the high-resolution timer specification (Presto/2.11.319)

• Add support for the performance.now() function
• See: High Resolution Time

Implemented in core-integration-points 320 through 323

ECMAScript

Add support for the slice() method over ArrayBuffers (Presto/2.11.322)

• See: Typed Array Specification

Implemented in core-integration-points 324 through 330

WebIDL

Add Window.matchMedia method and MediaQueryList interface to CSSOM View support (Presto/2.11.324)

• See: CSSOM View Module - Window.matchMedia
• See: CSSOM View Module - MediaQueryList

Implemented in core-integration-points 331 through 337

W3C Text Encoding

UTF-16 byte order mark (BOM) now defaults to little-endian when no BOM is specified (Presto/2.11.334)

Remove handling of 5/6-byte UTF-8 sequences (Presto/2.11.334)

• See: RFC 3629 - UTF-8

Unicode

Update Unicode to 6.1.0 specification (Presto/2.11.335)

• See: Unicode 6.1.0

WebSocket API

Update WebSocket implementation to RFC 6455 (Presto/2.11.337)

• See: The WebSocket API
• See: RFC 6455 - The WebSocket Protocol

Implemented in core-integration-points 338 through 345

XMLHttpRequest

Align XMLHttpRequest.setRequestHeader()'s allowed headers with specification: Content-Transfer-Encoding is now allowed, DNT (from Do-Not-Track) is now blocked (Presto/2.11.341)

• See: XMLHttpRequest

WebIDL

Change handling of null and undefined in replaceState and pushState (Presto/2.11.341)

• null passed as the 3rd argument of replaceState or pushState will now be ignored
• undefined passed as the 3rd argument of replaceState or pushState will now be ignored
• See: Web IDL

Google Gears

Remove support for Google Gears (Presto/2.11.344)

Implemented in core-integration-points 346 through 351

Page Visibility API

Add support for the Page Visibility API (Presto/2.11.348)

• Add support for visible and hidden
• Event is only sent when platform signals the window/tab visibility is changing
• See: Page Visibility

Opera web specification support pages

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