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JDocument/addScriptDeclaration

From Joomla! Documentation

Revision as of 10:55, 15 February 2009 by Chris Davenport (Talk | contribs)

Adds an internal script to the document object. The script is appended to the document objects' internal script buffer for the specified type.

Contents

Syntax

void addScriptDeclaration( $content, $type )

where:

Argument Data type Description Default
$content string Script content.
$type string MIME type of script. 'text/javascript'

Example 1

To add a Hello World alert in JavaScript, you could use:

$content = 'alert( \'Hello Joomla!\' )';
$doc =& JFactory::getDocument();
$doc->addScriptDeclaration( $content );

Notice that quotation marks in the JavaScript code will need to be escaped by preceding them with a backslash character.

Example 2

Adding a slightly more realistic piece of JavaScript:

function getJavaScript($message) {
    $javascript .= 'if(window.addEventListener){ // Mozilla, Netscape, Firefox' . "\n";
    $javascript .= '    window.addEventListener("load", function(){ alert("' . $message . '");}, false);' . "\n";
    $javascript .= '} else { // IE' . "\n";
    $javascript .= '    window.attachEvent("onload", function(){ alert("' . $message . '");});' . "\n";
    $javascript .= '}';
    return $javascript;
}
 
$doc =& JFactory::getDocument();
$doc->addScriptDeclaration( getJavaScript( 'This will appear in an alert box after the page loads.' ) );

See also