MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Specifikace stáhnout pdf (Strana 306)

306 Behaviors

How Behaviors work

When a user selects an HTML element in a Dreamweaver document and clicks the Plus (+)

button on the Behaviors panel, the following events occur:

1. Dreamweaver calls the canAcceptBehavior() function in each Action file to see whether

this action is appropriate for the document or the selected element.

If the return value of this function is

false, Dreamweaver dims the action in the Actions

pop-up menu. (For example, the Control Shockwave action is dimmed when the user’s

document has no SWF files.) If the return value is a list of events, Dreamweaver compares

each event with the valid events for the currently selected HTML element and target

browser until it finds a match. Dreamweaver populates the Events pop-up menu with the

matched event from the

canAcceptBehavior() function at the top of the list. If no

match exists, the default event for the HTML element (marked in the Event file with an

asterisk [*]) becomes the top item. The remaining events in the menu are assembled from

the Event file.

2. The user selects an action from the Actions pop-up menu.

3. Dreamweaver calls the windowDimensions() function to determine the

size of the Parameters dialog box. If the

windowDimensions() function is not defined, the

size is determined automatically.

A dialog box always appears, with OK and Cancel buttons at the right edge, regardless of

the contents of the

BODY element.

4. Dreamweaver displays a dialog box that contains the BODY elements of the Action file. If

the Action file’s

BODY tag contains an onLoad handler, Dreamweaver executes it.

5. The user fills in the parameters for the action. Dreamweaver executes event handlers that

are associated with the form fields as the user encounters them.

6. The user clicks OK.

7. Dreamweaver calls the behaviorFunction() and applyBehavior() functions in the

selected Action file. These functions return strings that are inserted into the user’s

document.

8. If the user later double-clicks the action in the Actions column, Dreamweaver reopens the

Parameters dialog box and executes the

onLoad handler. Dreamweaver then calls the

inspectBehavior() function in the selected Action file, which fills in the fields with the

data that the user previously entered.

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MACROMEDIA DREAMWEAVER MX 2004-EXTENDING DREAMWEAVER Specifikace Strana 306