Adobe Extending Dreamweaver CS4 Manuel d'utilisateur télécharger pdf (Page 248)

242

EXTENDING DREAMWEAVER CS4

Behaviors

Example

The following instance of the canAcceptBehavior() function returns a list of preferred events for the behavior if the

document has any named images:

function canAcceptBehavior(){

var theDOM = dreamweaver.getDocumentDOM();

// Get an array of all images in the document

var allImages = theDOM.getElementsByTagName('IMG');

if (allImages.length > 0){

return "onMouseOver, onClick, onMouseDown";

}else{

return false;

}

displayHelp()

Description

If this function is defined, a Help button appears below the OK and Cancel buttons in the Parameters dialog box. This

function is called when the user clicks the Help button.

Arguments

None.

Returns

Dreamweaver expects nothing.

Example

// the following instance of displayHelp() opens

// in a browser a file that explains how to use

// the extension.

function displayHelp(){

var myHelpFile = dw.getConfigurationPath() +

'/ExtensionsHelp/superDuperHelp.htm';

dw.browseDocument(myHelpFile);

}

deleteBehavior()

Description

This function undoes any edits that the applyBehavior() function performed.

Note: Dreamweaver automatically deletes the function declaration and the event handler that are associated with a

behavior when the user deletes the behavior in the Behaviors panel. It is necessary to define the

deleteBehavior()function only if the applyBehavior() function performs additional edits on the user’s document

(for example, if it inserts a tag).

Arguments

applyBehaviorString

This argument is the string that the applyBehavior() function returns.

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Adobe Extending Dreamweaver CS4 Manuel d'utilisateur Page 248