MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Especificaciones descargar pdf (Pagina 313)

100

101

The Behaviors API 313

Returns

Dreamweaver expects a string that contains the function call to be inserted in the user’s

document, usually after accepting parameters from the user. If the

applyBehavior()

function determines that the user made an invalid entry, the function can return an error

string instead of the function call. If the string is empty (

return "";), Dreamweaver does not

report an error; if the string is not empty and not a function call, Dreamweaver displays a

dialog box with the text Invalid input supplied for this behavior: [the string returned from

applyBehavior()

]. If the return value is null (return;), Dreamweaver indicates that an

error occurred but gives no specific information.

Example

The following example of the applyBehavior() function returns a call to the

MM_openBrWindow() function and passes user-specified parameters (the height and width of

the window; whether the window should have scroll bars, a toolbar, a location bar, and other

features; and the URL that should open in the window):

function applyBehavior() {

var i,theURL,theName,arrayIndex = 0;

var argArray = new Array(); //use array to produce correct ¬

number of commas w/o spaces

var checkBoxNames = new Array("toolbar","location",¬

"status","menubar","scrollbars","resizable");

for (i=0; i<checkBoxNames.length; i++) {

theCheckBox = eval("document.theForm." + checkBoxNames[i]);

if (theCheckBox.checked) argArray[arrayIndex++] = ¬

(checkBoxNames[i] + "=yes");

}

if (document.theForm.width.value)

argArray[arrayIndex++] = ("width=" + ¬

document.theForm.width.value);

if (document.theForm.height.value)

argArray[arrayIndex++] = ("height=" + ¬

document.theForm.height.value);

theURL = escape(document.theForm.URL.value);

theName = document.theForm.winName.value;

return "MM_openBrWindow('"+theURL+"',¬

'"+theName+"','"+argArray.join()+"')";

}

NOTE

Quotation marks ("")within the returned string must be preceded by a backslash (\) to

avoid errors that the JavaScript interpreter reports.

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