From a065e04d529da1d847b5062a12c46d916408bf32 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 21:46:22 -0500 Subject: update based on https://github.com/mdn/yari/issues/2028 --- files/fr/web/accessibility/at-apis/index.html | 56 --------------------------- 1 file changed, 56 deletions(-) delete mode 100644 files/fr/web/accessibility/at-apis/index.html (limited to 'files/fr/web/accessibility/at-apis/index.html') diff --git a/files/fr/web/accessibility/at-apis/index.html b/files/fr/web/accessibility/at-apis/index.html deleted file mode 100644 index 86c5d18b73..0000000000 --- a/files/fr/web/accessibility/at-apis/index.html +++ /dev/null @@ -1,56 +0,0 @@ ---- -title: AT APIs Support -slug: Web/Accessibility/AT-APIs -tags: - - AT_APIs - - Accessibility - - NeedsTranslation - - TopicStub -translation_of: Mozilla/Tech/Accessibility/AT-APIs ---- -

Introduction

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Documentation is in progress still. But in the meantime it more up-to-date and contains more details than existed analogues for AT-SPI and MSAA
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This documentation explains how makers of screen readers, voice dictation packages, onscreen keyboards, magnification software and other assitive technologies can support Gecko-based software. We provide for them the support of these products on Windows, Linux/Unix and OS X platforms.

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Accessible Gecko

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Gecko is a rendering engine that Firefox, SeaMonkey, Netscape and yelp use. Gecko can render a variety of content, not just HTML and supports key web standards such as Cascading Style Sheets, Javascript and the W3C DOM. Gecko also handles the users keystrokes and mouse clicks. Gecko is the core architecture that we are adding accessibility to, in order to support basic accessibility in all applications that are based on it.

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Gecko Based Applications

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Gecko can be used in two ways to create application:

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Embedded Clients

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Embedded clients use Gecko only in the content window, at the moment for HTML and generic XML only. They typically use standard Windows controls for their user interface -- the area outside of the client content window, plus the context menu.

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XUL Applications

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XUL applications make full use of the Gecko architecture, not only for HTML content, but also for the entire user interface. Widgets such as menus, tab panels, tree views and dialogs are provided via an XML language called XUL (eXtensible User-interface Language). None of the user interface contains standard OS controls. This is done to ensure a common look and feel across all supported platforms, and to allow for different skins (appearances). Developing a XUL window is not that different from developing a web page, but the elements available to add widgets are more powerful and designed to be similar to desktop widgets.

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Examples of XUL applications:

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Gecko Version

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For Firefox and all other Gecko-based products: this documentation applies to up-to-date product builds based on Gecko 1.9.2 -- currently not available on official releases. However most of described features are supported starting from Gecko 1.9.0 (Firefox 3.0). However it's preferable to grab the current build of Firefox or any other Gecko-based product to be up to dated:

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Determining if Accessibility is Enabled in a Firefox

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Accessibility is enabled on Windows and Linux platforms by default. As well you might find helpful the about:accessibilityenabled Firefox extension.

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Supported AT APIs

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AT APIs terms

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Microsoft Active Accessibility (MSAA)
an API devised by Microsoft so that accessibility aids can track what's going on inside the user interface of any software package that supports it. If you seriously need to understand MSAA, you'll need to read the docs on MSDN and play with the sample apps and code that come with MSAA SDK 1.3. (I recommend SDK 1.3 because the MSAA SDK 2.0 doesn't come with the source code to the testing tools. The other differences are not important).
IAccessible2 (IA2)
IAccessible2 is a new accessibility API which complements Microsoft's earlier work on MSAA. This API fills critical accessibility API gaps in the MSAA offering.
Assistive Technology Service Provider Interface (AT-SPI)
an API devised by Sun Microsystems so that accessibility aids can track what's going on inside the user interface of any software package that supports it. If you seriously need to understand AT-SPI, you'll need to read the docs on gnome.org and play with the available sample apps and code, such as at-poke. Please note that the web docs are sometimes out of date, and the latest AT-SPI is available on CVS.
Universal Access (UA)
Universal Access (UA) is the Apple's accessibility framework.
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Windows platform

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We support MSAA (Microsoft Active Accessibility) and IAccessible2 on Windows. Also we expose MS COM interfaces ISimpleDOM* to provide an access to DOM tree.

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IAccessible2 is a set of interfaces that overlay the MSAA (IAccessible) and DOM (ISimpleDOM*) interface support. Any object that supports IAccessible will also support IAccessible2 and possibly any of the other IA2 interfaces.

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Linux/Unix platform

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We support ATK/AT-SPI interfaces on Linux.

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Mac platform

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We currently support only a subset of Universal Access. The rest of the Mozilla Universal Access support is in progress.

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Accessible Web Specifications

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Gecko exposes the number of XML languages including HTML to AT. Refer to accessible web specifications page to learn what and how markup languages are exposed.

AT APIs Implementation Details

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Refer to implementation details page to see how Gecko supports interesting AT API. There you will find information how AT API interfaces, roles, states and etc are mapped into Gecko accessibility API and visa versa.

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Keyboard User Interface and API

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Fortunately, Gecko uses the standard keyboard API's for each supported platform. The Mozilla keyboard shortcuts for content are similar to what is used in other browsers. Here is a list of Firefox keyboard shortcuts.

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Test Tools

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Here you will find a list of tools to test accessibility Gecko-based applications.

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Screen Readers

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Here's a list of screen readers we are oriented to in the first place.

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Contacts

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Please discuss accessibility issues on the Mozilla Accessibility groups or on the Mozilla Accessibility IRC channel.

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