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Revision as of 11:26, 27 November 2009 by tapla (Talk | contribs)

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Adding a Guarana UI checkbox on a web page

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Article Metadata
Tested with
Devices(s): Nokia 5800 XpressMusic
Compatibility
Platform(s):
Symbian
Article
Created: (26 Nov 2009)
Last edited: tapla (27 Nov 2009)

Overview

This code snippet demonstrates how to add a checkbox on a web page using Guarana UI components. The checkbox component looks like this:
Guarana checkbox icon.jpg
You can download the component library from Forum Nokia. The checkbox component requires the following files from the library:

  • lib/jquery/jquery.js
  • src/core.js
  • src/defaults.js
  • src/dom.js
  • src/util.js
  • src/widget.js
  • src/optionbox.js
  • src/checkbox.js
  • themes/nokia/base/base.css
  • themes/nokia/base/checkbox.css
  • themes/nokia/base/custom.css
  • themes/nokia/base/images/shadow.png (from base.css)
  • themes/nokia/base/images/shadow-c.png (from base.css)
  • themes/nokia/base/images/shadow-lr.png (from base.css)
  • themes/themeroller/default-theme/ui.accordion.css
  • themes/themeroller/default-theme/ui.all.css
  • themes/themeroller/default-theme/ui.base.css
  • themes/themeroller/default-theme/ui.core.css
  • themes/themeroller/default-theme/ui.theme.css
  • themes/themeroller/default-theme/images/ui-bg_diagonals-thick_10_444444_40x40.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-bg_flat_0_000000_40x100.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-bg_glass_20_9f1504_640x400.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-bg_glass_40_8ab61c_640x400.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-bg_glass_55_8ab61c_640x400.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-bg_highlight-hard_80_ededed_640x100.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-bg_highlight-soft_100_ededed_640x100.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-icons_89bf43_256x240.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-icons_97B72B_256x240.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-icons_222222_256x240.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-icons_e3bfb5_256x240.png (from ui.theme.css)
  • themes/themeroller/default-theme/images/ui-icons_ffffff_256x240.png (from ui.theme.css)

Source: Relevant HTML components

<head>
<!-- Guarana UI style sheets -->
<link rel="stylesheet" href="style/themes/nokia/base/base.css"
type="text/css" media="screen">
<link rel="stylesheet" href="style/themes/nokia/base/button.css"
type="text/css" media="screen">
<link rel="stylesheet"
href="style/themes/themeroller/default-theme/ui.all.css"
type="text/css" media="screen">
 
<!-- Guarana UI scripts -->
<script type="text/javascript" src="lib/jquery/jquery.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/core.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/defaults.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/dom.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/util.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/widget.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/optionbox.js"
charset="utf-8"></script>
<script type="text/javascript" src="lib/guarana/checkbox.js"
charset="utf-8"></script>
</head>
<body>
<div id="bodyContent" class="bodyContent">
<input type="checkbox" id="cb0" name="cb0" value="Checkbox 1" />
<input type="checkbox" id="cb1" name="cb1" value="Checkbox 2" />
<input type="checkbox" id="cb2" name="cb2" value="Checkbox 3" />
</div>
</body>

Source: JavaScript

// Initializes the widget
function init() {
for (var i = 0; i < CHECKBOXES; i++) {
checkboxes[i] = new Nokia.CheckBox({
element: "#cb" + i,
label: "Checkbox " + (i + 1),
wrapper: "div"
});
}
}

To find out whether the checkbox has been checked, use the isChecked() method:

// Shows the checked boxes.
function executeSnippet() {
var checkboxesChecked = 0;
for (var i = 0; i < checkboxes.length; i++) {
if (checkboxes[i].isChecked()) {
checkboxesChecked++;
}
}
displayNote("Checked checkboxes: " + checkboxesChecked);
}

Postconditions

A Guarana UI checkbox is added on the web page. When Options > Execute snippet is selected, the number of checked checkboxes is displayed.

See also

Supplementary material

This code snippet is part of the stub concept, which means that it has been patched on top of a template application in order to be more useful for developers. The version of the WRT stub application used as a template in this snippet is v1.2.

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