526
Creating Accessible Content
Tab order
You can create a tab order that determines the order in which objects receive
input focus when users press the Tab key. You can use ActionScript to do this, or if you have
Flash Professional 8, you can use the Accessibility panel to specify the tab order. Remember
that the tab index that you assign in the Accessibility panel does not necessarily control the
reading order. See
“Creating a tab order index for keyboard navigation in the Accessibility
panel (Flash Professional only)” on page 526
.
Reading order
You can also control the order in which a screen reader reads information
about the object (known as the reading order). To create a reading order, you must use
ActionScript to assign a tab index to every instance. You must create a tab index for every
accessible object, not just the focusable objects. For example, dynamic text must have tab
indexes, even though a user cannot tab to dynamic text. If you do not produce a tab index for
every accessible object in a given frame, Flash Player ignores all tab indexes for that frame
whenever a screen reader is present, and uses the default tab ordering instead. See
“Using
ActionScript to create a tab order for accessible objects” on page 532
.
Creating a tab order index for keyboard
navigation in the Accessibility panel
(Flash Professional only)
You can create a tab order index in the Accessibility panel for keyboard navigation. You can
create a custom tab order for the following objects:
■
Dynamic text
■
Input text
■
Buttons
■
Movie clips, including compiled movie clips
■
Components
■
Screens
Tab focus occurs in numerical order, starting from the lowest index number. Once tab focus
reaches the highest tab index, focus returns to the lowest index number.
NOT
E
You can also use ActionScript to create a keyboard navigation tab order index. See
“Using ActionScript to create a tab order for accessible objects” on page 532
.
Содержание FLASH 8-FLASH
Страница 1: ...Using Flash ...
Страница 12: ...12 Contents ...
Страница 110: ...110 Using Symbols Instances and Library Assets ...
Страница 128: ...128 Working with Color Strokes and Fills ...
Страница 156: ...156 Drawing ...
Страница 190: ...190 Working with Text ...
Страница 224: ...224 Working with Graphic Objects ...
Страница 270: ...270 Creating Motion ...
Страница 310: ...310 Working with Video ...
Страница 362: ...362 Working with Screens Flash Professional Only ...
Страница 386: ...386 Creating Multilanguage Text ...
Страница 454: ...454 Data Integration Flash Professional Only ...
Страница 500: ...500 Publishing ...
Страница 534: ...534 Creating Accessible Content ...