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<title>Accessibility and JavaHelp Viewer Shortcut Keys</title>

<h2>Accessibility and JavaHelp Viewer Shortcut Keys</h2>

<p>The JavaHelp^{<small>TM</small>} system tri-pane viewer is designed

to be accessible. Most features in the help viewer are accessible from the keyboard.

<p> The first time you open the help viewer, the focus should be on the default

entry in the TOC navigator. Sometimes you cannot tell where the focus is because

of a bug that can occur when the Back button is unselected. If you cannot tell

where the focus is, use the following procedure to establish focus again:</p>

<li>Press Ctrl-F1 to display alternate text for a toolbar button. This action

works only if the current focus is on a toolbar button.</li>

<li>If no alternate text displays, press F6 to see if the focus moves to an

item in the current navigator.</li>

<li>If the focus does not move to the navigator, press F6 once more (because

focus might have moved to the Content pane). Focus should now be in the Navigation

pane. </li>

<li>With focus in the Navigation pane, if you want to be absolutely sure where

you are, you can repeatedly press Shift-Tab followed by Ctrl-F1 until alternate

text displays for a toolbar button.</li>

<h3>Traversing the Viewer</h3>

<p>If the focus is in the toolbar buttons and you press the Tab key to traverse

through the viewer, the traversal order is as follows:</p>

<li>The toolbar buttons from left to right</li>

<li>The currently open tab in the Navigation (left) pane</li>

<li>The contents of that navigator

<p>Behavior in the navigator varies depending on whether or not the navigator

has a Search field. It will take up to four more presses of the Tab key

to move to the Content pane. Pressing F6 instead will move focus directly

to the Content (right) pane.</p>

</li>

<li>The topic in the Content (right) pane</li>

<p>When focus is in the Content pane, pressing the Tab key has no effect. The

Tab key does not wrap from the Content pane back to the toolbar. You can traverse

backwards from the Content pane by pressing F6 to move to the Navigation pane,

and then pressing Shift-Tab repeatedly.</p>

<h3>Traversing and Using the Toolbar Buttons</h3>

<p>You can move the focus between the toolbar buttons by pressing either the Left

Arrow and Right Arrow keys or the Tab and Shift-Tab keys. If you want to stay

in the toolbar and move from button to button, the Arrow keys are the best choice.

If you want to be able to move focus out of the toolbar, use the Tab and Shift-Tab

keys.</p>

<p>When a button has focus, you can perform two actions:</p>

<li>Pressing Spacebar activates the button (for example, activating the Print

button prints the currently selected topic or topics).</li>

<li>Pressing Ctrl-F1 displays the button's alternate text.</li>

<h3>Traversing and Using the Navigators</h3>

<p>The Navigation pane has a tabbed interface. If focus is on the last toolbar

button, pressing the Tab key takes you to the currently selected Navigator tab.

At that point, you can either press the Tab key to enter the navigator or press

Right Arrow or Left Arrow to select a different navigator. The behavior of the

focus depends on the type of navigator, as follows:</p>

<h4>TOC, Favorites, and Glossary Navigators</h4>

<ul>

<li>If you use an Arrow key to move to the navigator from another Navigator

tab, the focus moves automatically to an entry in the navigator.</li>

<li>If you use a Tab key to move to the navigator (for example, from a toolbar

button), the focus remains on the Navigator tab. If you press the Tab

key, the focus moves to an entry in the navigator.</li>

<li>In the navigator list, if you want to move to the Content pane, using

the F6 key produces the most predictable results. The Tab key has varying

results depending on whether or not there are scrollbars. Pressing the

Tab key once changes focus to the vertical scrollbar if there is one.

Pressing the Tab key again changes focus to the horizontal scrollbar if

there is one. Pressing Tab again changes focus to the Content (right)

pane. If you want to move to the Content pane, pressing the F6 key produces

the most predictable results.</li>

<li>In any Navigator list the following keys move focus from item to item

and change the corresponding topic in the Content (right) pane:

<ul>

<li>The Up Arrow and Down Arrow keys move the focus from item to item

in the navigator. </li>

<li>The Page Up and Page Down keys move the focus through the navigator

a page at a time.</li>

<li>The Home and End keys move the focus to the beginning and end of

the list.</li>

<li>The Right Arrow key opens a folder and the Left Arrow key closes

a folder.</li>

<li>Ctrl-Right Arrow scrolls left and Ctrl-Left Arrow scrolls right.</li>

<li>F8 selects the splitter bar between the Navigator pane and the Content

pane. With the splitter bar selected, you can move it right and left

with the Right Arrow and Left Arrow keys.</li>

</ul>

</li>

<li>The F6 key changes focus to the Content pane.</li>

</ul>

<h4>Index and Search Navigators</h4>

<p>These navigators have a text field for

the search entry at the top of the navigator content pane, so they behave

differently from the other navigators. </p>

<ul>

<li>If you use an Arrow key to move to the navigator from another Navigator

tab, the focus moves immediately to the Search field. </li>

<li>If you use a Tab key to move to the navigator (for example, from a toolbar

button), the focus remains on the Navigator tab. If you press the Tab

key again, the focus moves to the Search field. </li>

<li>In the Search field, if you press the Tab key, the focus moves to the

navigator list.</li>

<li>In the navigator list, if you want to move the focus to the Content

pane, using the F6 key produces the most predictable results. The Tab

key has varying results depending on whether or not there are scrollbars.

Pressing the Tab key once changes the focus to the vertical scrollbar

if there is one. Pressing the Tab key again changes the focus to the horizontal

scrollbar if there is one. Pressing Tab again changes the focus to the

Content (right) pane.</li>

<li>In any Navigator list the following keys move the focus from item to

item and change the corresponding topic in the Content (right) pane:

<ul>

<li>The Up Arrow and Down Arrow keys move the focus from item to item

in the navigator. </li>

<li>The Page Up and Page Down keys move the focus through the navigator

a page at a time.</li>

<li>The Home and End keys move the focus to the beginning and end of

the list.</li>

<li>The Right Arrow key opens a folder and the Left Arrow key closes

a folder.</li>

<li>Ctrl-Right Arrow scrolls left and Ctrl-Left Arrow scrolls right.</li>

<li>F8 selects the splitter bar between the Navigator pane and the Content

pane. With the splitter bar selected, you can move it right and left

with the Right Arrow and Left Arrow keys.</li>

</ul>

</li>

<li>The F6 key changes the focus to the Content pane.</li>

</ul>

<h3>Traversing and Using the Content Pane</h3>

<p>The Content pane, on the right side of the viewer, displays the current help

topic. You can get to this pane by navigating to the Navigation (left) pane and

pressing F6. When you are in the Content pane, you can use the following keys

to move around and perform actions:</p>

<li>Right Arrow and Left Arrow move the focus left or right one letter at a

time. You cannot see the focus change.</li>

<li>Ctrl-Right Arrow and Ctrl-Left Arrow move the focus left or right one word

at a time. You cannot see the focus change.</li>

<li> Up Arrow and Down Arrow move the focus up and down one line at a time.

You cannot see the focus change. </li>

<li> Page Up and Page Down move the the topic up and down a page at a time.</li>

<li>Ctrl-Home and Ctrl-End move focus to the beginning and end of the topic.</li>

<li>Ctrl-T selects the next link. Ctrl-Shift-T selects the previous link.</li>

<li>Shift-Spacebar activates the selected link and goes to the linked topic.</li>

<li>F8 selects the splitter bar between the Navigator pane and the Content pane.

With the splitter bar selected, you can move it right and left with the Right

Arrow and Left Arrow keys. </li>

<li> F6 changes the focus to the Navigation (left) pane.</li>

<h3>Shortcut Key Table</h3>

<p>The following table lists the keystrokes you can use to navigate through the

help viewer. </p>

<table border="1" cellpadding="5" cellspacing="0" summary="JavaHelp keyboard shortcuts">

<tr valign="top" align="left">

<th align="left" scope="col">Keys</th>

<th align="left" scope="col">Action</th>

</tr>

<tr valign="top">

<td>Tab</td>

<td>Shifts focus to the next component. Does not work if the current focus

is the Content pane.</td>

</tr>

<tr valign="top">

<td>Shift-Tab</td>

<td>Shifts focus to the previous component. Does not work if the current focus

is the Content pane.</td>

</tr>

<tr valign="top">

<td> Up Arrow</td>

<td> Selects the previous item in a Navigator list.

<br>

Moves the focus to the previous line in a topic in the Content pane.

<br><br>

Moves the splitter bar left.

</td>

</tr>

<tr valign="top">

<td> Down Arrow</td>

<td> Selects the next item in a Navigator list.<br>

<br> Moves the focus to the next line in a topic in the Content pane.<br>

Moves the splitter bar right.

</td>

</tr>

<tr valign="top">

<td> Left Arrow </td>

<td> Shifts focus to the previous tab or the previous button.

<br>

Closes a folder in a Navigator list.

Moves one character to the left in a topic in the Content pane.

Moves the splitter bar left.

</td>

</tr>

<tr valign="top">

<td> Right Arrow</td>

<td> Shifts focus to the next tab or the next button.

<br>

Opens a folder in a Navigator list.

Moves one character to the right in a topic in the Content pane.

Moves the splitter bar right.

</td>

</tr>

<tr valign="top">

<td>Ctrl-Left Arrow</td>

<td>Scrolls to the left in a Navigator list or in the Content pane.

<br>

Moves one word to the left in a topic in the Content pane.

</td>

</tr>

<tr valign="top">

<td>Ctrl-Right Arrow</td>

<td>Scrolls to the right in a Navigator list or in the Content pane.

<br>

Moves one word to the right in a topic in the Content pane.

</td>

</tr>

<tr valign="top">

<td>Home</td>

<td>Selects the first item in a Navigator list.</td>

</tr>

<tr valign="top">

<td>End</td>

<td>Selects the last item in a Navigator list.</td>

</tr>

<tr valign="top">

<td>Ctrl-Home</td>

<td>Selects the first line in a topic in the Content pane.</td>

</tr>

<tr valign="top">

<td>Ctrl-End</td>

<td>Selects the last line in a topic in the Content pane</td>

</tr>

<tr valign="top">

<td>Page Up</td>

<td>Scrolls up one page.</td>

</tr>

<tr valign="top">

<td>Page Down </td>

<td>Scrolls down one page.</td>

</tr>

<tr valign="top">

<td>Ctrl-T</td>

<td>Shifts focus to the next link in a topic in the Content pane.</td>

</tr>

<tr valign="top">

<td>Ctrl-Shift-T</td>

<td>Shifts focus to the previous link in a topic in the Content pane.</td>

</tr>

<tr valign="top">

<td>Ctrl-Spacebar</td>

<td>Follows a link in a topic in the Content pane.</td>

</tr>

<tr valign="top">

<td>Spacebar</td>

<td>Activates the toolbar button that has focus.</td>

</tr>

<tr valign="top">

<td>Ctrl-F1</td>

<td>Displays alternate text for a toolbar button.</td>

</tr>

<tr valign="top">

<td>F6</td>

<td>Shifts focus between the Navigation (left) pane and the Content (right)

pane. </td>

</tr>

<tr valign="top">

<td>F8</td>

<td>Selects the splitter bar if focus is in the Content pane or the Navigation

pane. </td>

</tr>