| author | Eugene Ostroukhov <eugeneo@symbian.org> |
| Wed, 26 May 2010 17:01:34 -0700 | |
| changeset 341 | 480716493610 |
| parent 229 | 716254ccbcc0 |
| permissions | -rw-r--r-- |
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716254ccbcc0
Fixed 2046: WRTKit help topics. Fixed 2170: Added support for Web Developer Library. Fixed 1952: Event Trigger icons unreadable
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<!DOCTYPE html |
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="copyright" content="(C) Copyright 2009"/><meta name="DC.rights.owner" content="(C) Copyright 2009"/><meta name="DC.Type" content="concept"/><meta name="DC.Title" content="Determining whether to display home screen or full screen"/><meta name="abstract" content="A widget enabled for the home screen has two views, home screen view and a full screen view. You must implement a function in your widget that determines in which view to display the widget and call that function in response to communication from the home screen."/><meta name="description" content="A widget enabled for the home screen has two views, home screen view and a full screen view. You must implement a function in your widget that determines in which view to display the widget and call that function in response to communication from the home screen."/><meta name="DC.Relation" scheme="URI" content="GUID-53F53EE5-D92E-49A9-B882-741D389412BE"/><meta name="DC.Relation" scheme="URI" content="GUID-1EFD7043-E9B8-4B4E-9EA6-A20B3EECC14A"/><meta name="DC.Relation" scheme="URI" content="GUID-63F4E17E-8895-4054-82AD-762B90610B30"/><meta name="DC.Format" content="XHTML"/><meta name="DC.Identifier" content="GUID-5B0BE2FA-9FBB-4B8D-A1CE-219634C9C27A"/><meta name="DC.Language" content="en"/><title>Determining |
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whether to display home screen or full screen </title><script type="text/javascript"> |
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function initPage() {}
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</script><link href="../PRODUCT_PLUGIN/book.css" rel="stylesheet" type="text/css"/><link href="css/s60/style.css" rel="stylesheet" type="text/css" media="all"/></head><body onload="initPage();"><div class="body"><div class="contentLeft prTxt"><h1 class="pageHeading" id="GUID-5B0BE2FA-9FBB-4B8D-A1CE-219634C9C27A">Determining |
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whether to display home screen or full screen </h1><div><p>A widget enabled for the home screen has two views, home screen |
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view and a full screen view. You must implement a function in your widget |
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716254ccbcc0
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that determines in which view to display the widget and call that function |
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in response to communication from the home screen.</p> |
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<p>The home screen communicates with the widget when users interact with the |
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home screen. Communication between the home screen and the widget occurs at |
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the system level, so it happens automatically. When the widget receives communication |
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from the home screen, it fires the following events:</p> |
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<ul> |
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<li><p><code>onload()</code> and <code>onshow()</code> when |
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users add a widget to the home screen.</p></li> |
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<li><p><code>onshow()</code> and <code>onresize()</code> when |
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the mobile device user selects a home screen widget to launch it in full view.</p></li> |
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<li><p><code>onshow()</code> and <code>onresize()</code> when |
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the home screen moves from the background to the foreground.</p></li> |
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</ul> |
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<div><h3>To determine which view to display</h3><ol> |
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<li id="GUID-C2F4608F-C6E9-469E-84DE-7A07D71FC86E"><a name="GUID-C2F4608F-C6E9-469E-84DE-7A07D71FC86E"><!----></a><p>Write JavaScript code |
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that determines the current screen size and uses that value to initialize |
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either the home screen view or the full screen view. </p><p>For example, the |
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following functions set a threshold value of 150 pixels to determine whether |
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to display the widget in full screen view (<code>initFull</code>) |
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or home screen view (<code>initHomeScreen</code>).</p><pre class="codeblock">function setViewMode(){
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var isInHSView = isHSViewMode(); |
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716254ccbcc0
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if ( isInHSView ) {
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initHomeScreen(); |
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716254ccbcc0
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} else {
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initFull(); |
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} |
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} |
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</pre><pre class="codeblock">isHSViewMode: function() {
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var size = this.getScreenSize(); |
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return ( size.height < HS_VIEW_TRESHOLD ); |
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} |
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716254ccbcc0
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</pre><pre class="codeblock">HS_VIEW_TRESHOLD = 150; |
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</pre></li> |
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<li id="GUID-FD38A295-3E2A-4B7F-AFFC-314709F1CB3F"><a name="GUID-FD38A295-3E2A-4B7F-AFFC-314709F1CB3F"><!----></a><p>Call the <code>setViewMode()</code> function |
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in response to <code>onload()</code>, <code>onshow()</code>, and <code>onresize()</code> events |
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fired by the widget UI.</p><p>For example, the following HTML code calls <code>setViewMode()</code> in |
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response to these events. </p><pre class="codeblock"><body id="body" onload="setViewMode();" onshow="setViewMode();" onresize="setViewMode();"></pre></li> |
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</ol><p>For an example, see <a href="GUID-1812A0D5-74CC-4A94-AF91-970465F6A738.html#GUID-1812A0D5-74CC-4A94-AF91-970465F6A738">Enabling STEW for the home screen</a>.</p></div> |
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</div></div></div><div class="footer"><hr/><div class="copy">© Nokia 2009.</div></div></body></html> |