Adobe 38040334 Extending Dreamweaver - Page 123

DREAMWEAVER CS3 117 Extending Dreamweaver displayHelp() Description If you define this function, it displays a Help button 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 example opens the myObjectHelp.htm file in a browser; this file explains how to use the extension: function displayHelp(){ var myHelpFile = dw.getConfigurationPath() + '/ExtensionsHelp/myObjectHelp.htm'; dw.browseDocument(myHelpFile); } isDOMRequired() Description This function determines whether the object requires a valid DOM to operate. If this function returns a true value or if the function is not defined, Dreamweaver assumes that the command requires a valid DOM and synchronizes the Code and Design views for the document before executing. Synchronization causes all edits in the Code view to be updated in the Design view. Arguments None. Returns Dreamweaver expects a true value if a command requires a valid DOM to operate; false otherwise. insertObject() Availability Dreamweaver MX. Description This function is required if the objectTag() function is not defined. It is called when the user clicks OK. It either inserts code into the user's document and closes the dialog box or displays an error message and leaves the dialog box open. This works as an alternate function to use in objects instead of the objectTag() function. It does not assume that the user is inserting text at the current insertion point and allows data validation when the user clicks OK. You should use the insertObject() function if one of the following conditions exists: • You need to insert code in more than one place. • You need to insert code somewhere other than the insertion point. • You need to validate input before inserting code.