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<!DOCTYPE concept

  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="GUID-32756B46-DAB7-44FA-B710-33EC36E1409F" xml:lang="en"><title>List

browsing</title><prolog><metadata><keywords/></metadata></prolog><conbody>

<p>In a list, browsing is possible in two directions: pressing the Arrow up

key moves the focus one step up (backward), and pressing the Arrow down key

moves the focus one step down (forward).</p>

<p>When browsing, the item in focus must always be visible. The detailed rules

of moving the focus are as follows:</p>

<ul>

<li><p>If the choice item that is becoming focused is already fully visible,

all the items remain in their current positions, and the highlight is moved

from the old item to the new item. </p></li>

<li><p>If the new choice item is not visible, all items are moved in the view

to the appropriate direction so that the new item becomes fully visible. For

example, if the focus is moving down and the new item is currently below the

bottom edge of the view, the items are moved up. </p></li>

<li><p>When moving the choice items in the view, they are only moved the minimum

amount necessary. For example, when moving items up to get the next one under

the bottom edge visible, the item moves to the lowest allowed position in

the view.</p></li>

</ul>

<p>By default, all lists loop. This means that it is possible to browse forward

from the last choice item, which leads to the first item in the list, and

vice versa.</p>

<p>It is possible to specify that a list is a queue. This means that it is

not allowed to browse forward from the last item or browse backward from the

first item. If the user attempts this, the list does not react; there is no

feedback except for the normal keypad tone.</p>

</conbody></concept>