User Guide

Item tag attributes 185
enabled="script"
Optional. As with menus, the script returns a value that specifies whether the item is enabled. If
you do not specify this attribute, it defaults to enabled. The
enabled attribute is equivalent to the
canAcceptCommand() function in a toolbar command file.
Example
enabled="dw.getFocus() == 'textView' || dw.getFocus() == 'html'"
checked="script"
This attribute is required for check buttons and radio buttons. Dreamweaver ignores the
checked
attribute for other types of items. As with menus, the script returns a value that specifies whether
the item is checked or unchecked. The
checked attribute is equivalent to isCommandChecked()
in a toolbar command file. If you do not specify this attribute, it defaults to unchecked.
Example
checked="dw.getDocumentDOM() != null && dw.getDocumentDOM().getView() ==
'code'"
value="script"
This attribute is required for pop-up menus, combo boxes, text boxes, and color pickers.
Dreamweaver ignores the
value attribute for other types of items.
To determine what value to display for pop-up menus and combo boxes, Dreamweaver first calls
isCommandchecked() for each item in the menu. If the isCommandchecked() function returns a
true value for any items, Dreamweaver displays the value for the first one. If no items return a
true value or the isCommandChecked() function is not defined, Dreamweaver calls the
getCurrentValue() function or executes the script that the value attribute specifies. If the
control is a combo box, Dreamweaver displays the returned value. If the control is a pop-up
menu, Dreamweaver temporarily adds the returned value to the list and displays it.
In all other cases, the script returns the current value to display. For pop-up menus or combo
boxes, this value should be one of the items in the menu list. For combo boxes and text boxes, the
value can be any string that the script returns. For color pickers, the value should be a valid color
but Dreamweaver does not enforce this.
The value attribute is equivalent to the
getCurrentValue() function in a toolbar command file.
update="update_frequency_list"
Optional. This attribute specifies how often the
enabled, checked, showif, and value handlers
should run to update the visible state of the item. The
update attribute is equivalent to the
getUpdateFrequency() function in a toolbar command file.
You must specify the update frequency for toolbar items because these items are always visible,
unlike menu items. For this reason, you should always select the lowest frequency possible and
make sure your handlers for the
enabled, checked, and value handlers are as simple as possible.