MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Spezifikationen PDF herunterladen (Seite 217)

How toolbars work 217

You cannot drag and drop toolbars between the document window and the Dreamweaver

workspace frame.

■ Toolbars remain a fixed size. A toolbar does not shrink if the container shrinks or if other

toolbars are placed next to it.

■ You can show or hide toolbars from the View >Toolbars menu.

■ Toolbars cannot overlap.

■ Only the outline of the toolbar appears while you drag it.

On the Macintosh, toolbars are always attached to the document window. They can be shown

or hidden from the menu, but you cannot drag and drop, rearrange, or undock them.

How toolbar commands work

When Dreamweaver draws a toolbar, the following events occur:

1. For each toolbar control item, Dreamweaver determines whether the file attribute exists.

2. If the file attribute exists, Dreamweaver calls the canAcceptCommand() function to

determine whether it should enable the control in the current context of the document.

For the Document Title text box in the Dreamweaver toolbar, for example, the

canAcceptCommand() function checks to see if there is a current DOM and if the current

document is an HTML file. If both these conditions are true, the function returns

true

and Dreamweaver enables the text box on the toolbar.

3. If the file attribute exists, Dreamweaver ignores the following attributes, if they are

specified:

checked, command, DOMRequired, enabled, script, showif, update, and

value.

4. If the file attribute does not exist, Dreamweaver processes the attributes that are set for

the toolbar control item:

checked, command, DomRequired, and so on.

For more information on specific item tag attributes, see “Item tag attributes”

on page 232.

5. Dreamweaver calls the getCurrentValue() function on every update cycle, as specified by

the

update attribute, to determine what value to display for the control.

6. The user selects an item on the toolbar.

7. Dreamweaver calls the receiveArguments() function to process any arguments that the

arguments attribute of the toolbar item specifies.

For more information on the purpose of specific functions in the Toolbar Command API, see

“The toolbar command API” on page 238.

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MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Spezifikationen Seite 217