MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Spezifikationen PDF herunterladen (Seite 200)

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200 Menus and Menu Commands

In this command, the receiveArguments() function processes the arguments and executes

the command. More complex menu commands might call different functions to execute the

command. For example, the following code checks whether the first argument is

"foo"; if it

is, it calls the

doOperationX() function and passes it the second argument. If the first

argument is

"bar", it calls the doOperationY() function and passes it the second argument.

The

doOperationX() or doOperationY() function is responsible for executing the

command.

function receiveArguments(){

if (arguments.length != 2) return;

var whatToDo = arguments[0];

if (whatToDo == "foo"){

doOperationX(arguments[1]);

}else if (whatToDo == "bar"){

doOperationX(arguments[1]);

}

setMenuText()

Dreamweaver calls the setMenuText() function to determine what text appears for the menu

item. If you do not define the

setMenuText() function, Dreamweaver uses the text that you

specified in the

name attribute of the menuitem tag.

The

setMenuText() function checks the value of the argument that Dreamweaver passes,

arguments[0]. If the value of the argument is "undo", Dreamweaver calls the

dw.getUndoText() function; if it is "redo", Dreamweaver calls dw.getRedoText(). The

dw.getUndoText() function returns text that specifies the operation that Dreamweaver will

undo. For example, if the user executes multiple Redo operations,

dw.getUndoText() could

return the menu text “Undo Edit Source.” Likewise, the

dw.getRedoText() function returns

text that specifies the operation that Dreamweaver will redo. If the user executes multiple

Undo operations, the

dw.RedoText() function could return the menu text “Redo Edit

Source.”

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