Test Case sc3.2.5_l3_030: Change of viewport when a form control loses the focus (onblur)

Formal Metadata

Formal Metadata
TitleChange of viewport when a form control loses the focus (onblur)
DescriptionDocument containing a text input field (in a paragraph but not in a form element); when the user moves focus from the text input field the browser window is moved.
CreatorBenToWeb (johannes.koch@…)
RightsCopyright BenToWeb 2004-2007
LanguageEnglish
Date2005-08-29
Statusvalidated

Technologies and Features

Technologies are markup languages or data formats. If the technology is a markup language, “features” refers to elements and attributes.

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

XHTML™ 1.0 The Extensible HyperText Markup Language (Second Edition)

Feature: input (namespace: http://www.w3.org/1999/xhtml) .

Technical specification: http://www.w3.org/TR/1999/REC-html401-19991224/interact/scripts.html#adef-onblur.

Standard ECMA-262 : ECMAScript Language Specification, 3rd edition (December 1999)

Standard ECMA-262 : ECMAScript Language Specification, 3rd edition (December 1999)

Test Data

Purpose

The test case is intended to fail because removing the focus from the input field causes a change to the browser window.

Expert Guidance

The browser must be JavaScript-enabled. The browser window must not be maximized or full-screen. In Opera use overlapping windows (Shift+F5).

Test Modes

Accessibility expert.

Test Files

Test file.

TCDL Data

sc3.2.5_l3_030 (XML).

Rules

“Rules” refer to success criteria in WCAG 2.0, checkpoints in WCAG 1.0 and similar requirements.

Primary Rules

The test case fails the following success criterion at line 8, column 118: http://www.w3.org/TR/2007/WD-WCAG20-20070517/Overview.html#consistent-behavior-no-extreme-changes-context.

Functional Outcome

The user initiated the change of context, but did not expect it to be connected to the user's action.

Technical Comment

The actual behaviour depends on the user agent. On Windows XP, the following behaviour was observed. In Firefox 2.0 and SeaMonkey 1.1: if the window was maximized, it is resized before it is moved, otherwise it is just moved. In Internet Explorer 6.0, the window is moved, regardless whether it was maximized or not. In Opera 9: nothing happens, regardless whether the browser window was maximized or not. If Internet Explorer 6, Opera 9 and SeaMonkey 1.1 are in full-screen mode (which can be toggled with F11), the window does not move either.

This test case maps to failure F9: Failure of SC 3.2.5 due to changing the context when the user removes focus from a form element

Secondary Rules

Secondary Rule (WCAG 2.0 - April 2006 Working Draft (Last Call))

The test case fails the following success criterion at line 8, column 118: http://www.w3.org/TR/2006/WD-WCAG20-20060427/guidelines.html#consistent-behavior-no-extreme-changes-context.

Functional Outcome

The user initiated the change of context, but did not expect it to be connected to the user's action.

Technical Comment

The actual behaviour depends on the user agent. On Windows XP, the following behaviour was observed. In Firefox 2.0 and SeaMonkey 1.1: if the window was maximized, it is resized before it is moved, otherwise it is just moved. In Internet Explorer 6.0, the window is moved, regardless whether it was maximized or not. In Opera 9: nothing happens, regardless whether the browser window was maximized or not. If Internet Explorer 6, Opera 9 and SeaMonkey 1.1 are in full-screen mode (which can be toggled with F11), the window does not move either.

This test case maps to failure F9: Failure of SC 3.2.5 due to changing the context when the user removes focus from a form element (http://www.w3.org/TR/2006/WD-WCAG20-TECHS-20060427/Overview.html#F9).

Online version: sc3.2.5_l3_030.

Secondary Rule (WCAG 2.0 - June 2005 Working Draft)

The test case passes the following success criterion: http://www.w3.org/TR/2006/WD-WCAG20-20050630/#consistent-behavior-no-extreme-changes-context.

Functional Outcome

The user initiated the change of context.

Technical Comment

The user moved the focus to another form control, which initiated a change of viewport.