| author | Eugene Ostroukhov <eugeneo@symbian.org> |
| Wed, 28 Jul 2010 09:27:51 -0700 | |
| changeset 455 | 5da55957c779 |
| parent 230 | 7848c135d915 |
| permissions | -rw-r--r-- |
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7848c135d915
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<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
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<html lang="en" xml:lang="en"> |
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<head> |
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<meta content="text/html; charset=utf-8" http-equiv="Content-Type" /> |
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<meta name="copyright" content="(C) Copyright 2005" /> |
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<meta name="DC.rights.owner" content="(C) Copyright 2005" /> |
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<meta content="concept" name="DC.Type" /> |
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<meta name="DC.Title" content="WRTKit design considerations" /> |
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<meta scheme="URI" name="DC.Relation" content="WRTKit_Overview_of_the_WRTKit-GUID-14c414f6-a220-40b6-8614-df13141495ab.html" /> |
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<meta content="XHTML" name="DC.Format" /> |
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<meta content="GUID-CD4C583D-E6D8-4AAB-B2D8-DBA09DD7A009" name="DC.Identifier" /> |
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<meta content="en" name="DC.Language" /> |
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<link href="commonltr.css" type="text/css" rel="stylesheet" /> |
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<title> |
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WRTKit design considerations</title> |
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</head> |
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<body id="GUID-CD4C583D-E6D8-4AAB-B2D8-DBA09DD7A009"><a name="GUID-CD4C583D-E6D8-4AAB-B2D8-DBA09DD7A009"><!-- --></a> |
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<h1 class="topictitle1"> |
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WRTKit design considerations</h1> |
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<div> |
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<div class="section"><h2 class="sectiontitle"> |
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User interface design</h2> |
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<p> |
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The WRTKit uses views and controls as the basis for all user |
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interfaces, and those views and controls have a look and feel that |
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is more similar to mobile device applications than to web pages, |
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despite the fact that the underlying technology is HTML, CSS and |
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JavaScript. The WRTKit supports both the tab and pointer based |
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navigations modes but staying true with the application-like look |
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and feel, it's often a good idea to use the tab navigation mode as |
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that will probably be more familiar to users. |
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</p> |
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<p> |
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Consistency and clarity help guiding the user through the widget |
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user interface. As the saying goes, less is more. Instead of having |
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a huge user interface that users must scroll through to get to what |
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they want, consider dividing the user interface into multiple views |
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that only contain controls and functionality that logically fits |
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together. Use NavigationButton controls or the Options menu for |
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navigation between the views. |
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</p> |
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<p> |
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Keep in mind that the right softkey can be programmatically changed. |
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You can take advantage of this, for example so that you use it to |
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allow users to return back to the previous or parent view. |
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</p> |
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<p> |
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Consider placing all configurable options in a view that the user |
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can access from the Options menu. If there are more configurable |
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options than what fits within one or two screenfuls then it's |
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probably a good idea to split them into multiple views. |
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</p> |
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<p> |
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Errors happen so keep those in mind when designing the widget. |
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The WRTKit offers easy to use notification popup dialogs that |
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can be used to show error messages in a way that will be familiar |
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to the user. |
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</p> |
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</div> |
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<div class="section"><h2 class="sectiontitle"> |
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Security</h2> |
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<p> |
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Most of methods in the WRTKit that accept strings as parameters |
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use XHTML in their values. This allows the use of custom styles |
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and other rich content in control and view captions, label |
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values, content in content panels, and more. But like always |
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when dealing with untrusted data from the Internet, you have to |
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be careful with the data that you display in the user interface |
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so that you don't end up placing malicious HTML (e.g. with |
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script tags containing hostile code) into your user interface. |
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</p> |
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<p> |
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Always filter the content that you fetch using AJAX to make sure |
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that no HTML tags have been injected into that content. This is |
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a good idea in any case even if there are no malicious intents, |
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since arbitrary HTML mixed into content can easily cause your |
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user interface to behave in unpredictable ways. |
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</p> |
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</div> |
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</div> |
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<div> |
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<div class="familylinks"> |
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<div class="parentlink"><strong>Parent topic:</strong> <a href="WRTKit_Overview_of_the_WRTKit-GUID-14c414f6-a220-40b6-8614-df13141495ab.html">Overview of the WRTKit</a></div> |
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</div> |
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</div> |
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</body> |
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</html> |