MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Specifikace stáhnout pdf (Strana 239)

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The toolbar command API 239

canAcceptCommand()

Availability

Dreamweaver MX.

Description

Determines whether the toolbar item is enabled. The enabled state is the default condition for

an item, so you should not define this function unless it returns a

false value in at least one

case.

Arguments

For pop-up menus, combo boxes, text boxes, and color pickers, the first argument is the

current value within the control. The

getDynamicContent() function can optionally attach

individual IDs to items within a pop-up menu. If the selected item in the pop-up menu has

an ID attached, Dreamweaver passes that ID to

canAcceptCommand() instead of the value.

For combo boxes, if the current contents of the text box do not match an entry in the pop-up

menu, Dreamweaver passes the contents of the text box. Dreamweaver compares against the

pop-up menu without case-sensitivity to determine whether the contents of the text box

match an entry in the list.

If you specify the

arguments attribute for this toolbar item in the toolbars.xml file, those

arguments are passed next. If you did not specify the

arguments attribute, Dreamweaver

passes the ID of the item.

Returns

Dreamweaver expects a Boolean value; true if the item is enabled; false otherwise.

Example

function canAcceptCommand()

{

return (dw.getDocumentDOM() != null);

}

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