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1 <?xml version="1.0" encoding="utf-8"?> |
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2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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3 <!-- This component and the accompanying materials are made available under the terms of the License |
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4 "Eclipse Public License v1.0" which accompanies this distribution, |
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5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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6 <!-- Initial Contributors: |
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7 Nokia Corporation - initial contribution. |
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8 Contributors: |
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9 --> |
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10 <!DOCTYPE concept |
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11 PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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12 <concept id="GUID-32756B46-DAB7-44FA-B710-33EC36E1409F" xml:lang="en"><title>List |
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13 browsing</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
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14 <p>In a list, browsing is possible in two directions: pressing the Arrow up |
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15 key moves the focus one step up (backward), and pressing the Arrow down key |
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16 moves the focus one step down (forward).</p> |
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17 <p>When browsing, the item in focus must always be visible. The detailed rules |
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18 of moving the focus are as follows:</p> |
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19 <ul> |
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20 <li><p>If the choice item that is becoming focused is already fully visible, |
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21 all the items remain in their current positions, and the highlight is moved |
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22 from the old item to the new item. </p></li> |
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23 <li><p>If the new choice item is not visible, all items are moved in the view |
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24 to the appropriate direction so that the new item becomes fully visible. For |
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25 example, if the focus is moving down and the new item is currently below the |
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26 bottom edge of the view, the items are moved up. </p></li> |
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27 <li><p>When moving the choice items in the view, they are only moved the minimum |
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28 amount necessary. For example, when moving items up to get the next one under |
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29 the bottom edge visible, the item moves to the lowest allowed position in |
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30 the view.</p></li> |
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31 </ul> |
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32 <p>By default, all lists loop. This means that it is possible to browse forward |
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33 from the last choice item, which leads to the first item in the list, and |
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34 vice versa.</p> |
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35 <p>It is possible to specify that a list is a queue. This means that it is |
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36 not allowed to browse forward from the last item or browse backward from the |
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37 first item. If the user attempts this, the list does not react; there is no |
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38 feedback except for the normal keypad tone.</p> |
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39 </conbody></concept> |