author | Dominic Pinkman <Dominic.Pinkman@Nokia.com> |
Wed, 31 Mar 2010 11:11:55 +0100 | |
changeset 7 | 51a74ef9ed63 |
permissions | -rw-r--r-- |
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<?xml version="1.0" encoding="utf-8"?> |
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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<!-- This component and the accompanying materials are made available under the terms of the License |
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"Eclipse Public License v1.0" which accompanies this distribution, |
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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<!-- Initial Contributors: |
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Nokia Corporation - initial contribution. |
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Contributors: |
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--> |
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<!DOCTYPE concept |
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PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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<concept id="GUID-F5371A59-A637-4623-A2C0-9A8B8E5F3CFB" xml:lang="en"><title>Interaction |
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with other hardware components</title><prolog><metadata><keywords/></metadata></prolog><conbody> |
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<p>In addition to traditional keys, interaction devices of other types may |
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be built in the devices. In most scenarios, they produce input events similar |
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to keys, so that the software need not be changed. The hardware commands do |
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not have any effect on the application.</p> |
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<p>Examples of specific interaction devices are:<ul> |
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<li><p>Optical joysticks</p></li> |
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<li><p>Optical 9-way finger navigation</p></li> |
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<li><p>Acceleration sensors</p></li> |
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</ul></p> |
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<section id="GUID-C70CF894-EACC-470A-98C7-846B7FBC4F04"><title>Optical joystick</title><p>An optical joystick can be used |
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instead of (or in addition to) the traditional navigation keys. </p><p>When |
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used in combination with traditional scroll keys, optical joystick performs |
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same functions as that of mechanical scroll keys. However, the speed of the |
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movement can differ. </p><p>When used individually as the only scrolling device, |
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optical joystick emulates the functions of mechanical scroll keys. Sliding |
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a finger down over the joystick provides the same function as that of pressing |
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the down key. Repeat functionality can be produced with longer strokes. </p></section> |
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<section id="GUID-DF3C81F4-2FAD-4373-8568-0CFC6C7F9618"> <title>Optical |
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9-way navigation</title><p>The Symbian platform supports additional optical |
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navigation that is integrated to centre Select key. The supported directions |
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in 9-way rocker key are domed main directions and diagonals by combining the |
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main directions. Optical navigation allows continues moment of the finger |
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as observed in touch pad. It is suitable for pointer moving in browser and |
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content panning, for example, in photos, browser, and maps.</p></section> |
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<section id="GUID-10494E4E-B037-4874-BEFB-20AB95B61CBA"><title>Acceleration |
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sensor</title><p>There are three types of interaction events that can be recognized |
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with acceleration sensors:<ol> |
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<li id="GUID-704B967F-7E70-4446-B443-DDCA665D80BE"><p>Tapping the device by |
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hand (double tap) to perform a given function in set events. Tapping interaction |
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is not recommended for touch devices to prevent the unintentional touch actions.</p></li> |
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<li id="GUID-43884A1A-DE03-4074-8D35-4C5254159F14"><p>Changing the device’s |
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orientation from portrait to landscape and back to perform screen re-orientation.</p></li> |
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<li id="GUID-C07401D7-3AD2-4D74-B61D-E08A95F4E504"><p>Changing the device |
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orientation from screen up (for example on a table) to screen down and back |
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to silence an alert tone (for example, silencing an incoming call).</p></li> |
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</ol></p>The system is capable of sensing any of listed events. The supported |
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sensor interactions are configurable per device, but must be consistent in |
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not assigning different functions to these standard events. Also, the user |
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can be provided with the option to set the desired interactions. For example, |
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it is possible to set methods 1 and 3 (double tap by hand and turning the |
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screen downwards) for the 'silence incoming call' event. The settings are |
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available in <b>General Settings</b>. A double tap on the device produces |
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tactile (vibrating) feedback to reinforce and acknowledge that the interaction |
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is successful. See <xref href="GUID-581A8E4B-12BE-41C0-A20E-3087A80FEECF.dita">Tactile |
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feedback</xref> for more details.</section> |
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</conbody></concept> |