An enhanced event.
In some cases, an object which publishes an event needs to know
when delegates register and unregister for that event. Notifying
events serve this purpose, and they send events when delegates
register or unregister with them. This can be used to optimize
subsystems when they are not in use. Unlike regular events, notifying
events are created using the new keyword. In all other
respects, notifying events are the same as regular events.
| Attributes | |||||
| Name | Usage | Type (Tag) | Type (JS) | Default | Category |
| frame | JS only | readonly | |||
See also the resource
attribute. Setting this attribute will change the frame that is
being displayed by the resource associated with this view. The
first frame of the resource is frame 0. Setting a view's
'donttrackplay' option to true will allow the view's resource to
play without updating the value of the view's frame property. This
can save CPU usage in cases where the application doesn't need to
know what frame the resource is showing while it is playing.
Removed "at" sign from the line below so that this field does not appear in the documentation.
field selected: Setting this attribute calls the abstract method
setSelected. See
LzSelectionManager. |
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| mask | JS only | LzView | readonly | ||
| Reference to closest masked view in the hierarchy above this one | |||||
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| notifyingDelegate | JS only | LzDelegate | readonly | ||
| The delegate which will be called (with the number of currently registered delegates) when a delegate registers or unregisters for the event. | |||||
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| source | JS only | readonly | |||
| The URL from which to load the resource for this view. If this attribute is set, the media for the view is loaded at runtime. | |||||
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| addDelegate() | ||
| LzNotifyingEvent.addDelegate(d) | ||
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Calls the inherited method and also calls the notifyingDelegate with the length of the delegateList as the data. |
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| Parameters | ||
| Name | Type | Desc |
| d | LzDelegate | The delegate to add to the delegateList |
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| constructor() | ||
| LzNotifyingEvent(eventSender, eventName, d) | ||
|
A notifying event calls a delegate when it gets called for registration or removal. This helps an object keep track of whether or not they need to be sending an event that can be expensive to monitor (such as Flash's text focus.) |
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| Parameters | ||
| Name | Type | Desc |
| eventSender | Object | The object which publishes the event. |
| eventName | String | The name of the event to register for. |
| d | LzDelegate | The delegate to call when the event registers or unregisters a delegate. |
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| removeDelegate() | ||
| LzNotifyingEvent.removeDelegate(d) | ||
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Calls the inherited method and also calls the notifyingDelegate with the length of the delegateList as the data. |
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| Parameters | ||
| Name | Type | Desc |
| d | LzDelegate | The delegate to remove from the delegateList |
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addDelegate, clearDelegates, constructor, getDelegateCount, removeDelegate, sendEvent
| Events | |
| Name | Description |
| onaddsubview | None |
| onblur | None |
| onfocus | None |
| onheight | None |
| onremovesubview | None |
| onwidth | None |
| onx | None |
| ony | None |
Copyright © 2002-2007 Laszlo Systems, Inc. All Rights Reserved. Unauthorized use, duplication or distribution is strictly prohibited. This is the proprietary information of Laszlo Systems, Inc. Use is subject to license terms.