imgIDecoderObserver
| IID: | 876f14ee-f27c-41cd-b6fb-9efda3ebc7b5 |
| Inherits From: | imgIContainerObserver |
ImgIDecoderObserver interface
This interface is used both for observing imgIDecoder objects and for observing imgIRequest objects. In the former case, aRequest is always null. XXXldb The two functions should probably be split.
Methods
[noscript] void onDataAvailable ( imgIRequest request , gfxIImageFrame frame , nsIntRect rect )
void onStartContainer ( imgIRequest request , imgIContainer container )
void onStartDecode ( imgIRequest request )
void onStartFrame ( imgIRequest request , gfxIImageFrame frame )
void onStartRequest ( imgIRequest request )
void onStopContainer ( imgIRequest request , imgIContainer container )
void onStopDecode ( imgIRequest request , nsresult status , PRUnichar* statusArg )
void onStopFrame ( imgIRequest request , gfxIImageFrame frame )
void onStopRequest ( imgIRequest request , PRBool isLastPart )
void onDataAvailable ( imgIRequest request , gfxIImageFrame frame , nsIntRect rect )
Called when some part of the frame has new data in it
- Arguments:
- request
- frame
- rect
void onStartContainer ( imgIRequest request , imgIContainer container )
Called once the image has been inited and therefore has a width and height
- Arguments:
- request
- container
void onStartDecode ( imgIRequest request )
Called as soon as the image begins getting decoded
- Arguments:
- request
void onStartFrame ( imgIRequest request , gfxIImageFrame frame )
Called when each frame is created
- Arguments:
- request
- frame
void onStartRequest ( imgIRequest request )
Called at the same time that nsIRequestObserver::onStartRequest would be (used only for observers of imgIRequest objects, which are nsIRequests, not imgIDecoder objects)
Unlike nsIRequestObserver::onStartRequest, this can be called synchronously.
- Arguments:
- request
void onStopContainer ( imgIRequest request , imgIContainer container )
Probably not needed. called right before onStopDecode
- Arguments:
- request
- container
void onStopDecode ( imgIRequest request , nsresult status , PRUnichar* statusArg )
Called when the decoder is dying off
- Arguments:
- request
- status
- statusArg
void onStopFrame ( imgIRequest request , gfxIImageFrame frame )
Called when a frame is finished decoding
- Arguments:
- request
- frame
void onStopRequest ( imgIRequest request , PRBool isLastPart )
Called at the same time that nsIRequestObserver::onStopRequest would be (used only for observers of imgIRequest objects, which are nsIRequests, not imgIDecoder objects)
Unlike nsIRequestObserver::onStartRequest, this can be called synchronously.
- Arguments:
- request
- isLastPart
References
This interface is the type of the following properties:
This interface is passed as an argument to the following methods:
imgILoader.loadImage, imgILoader.loadImageWithChannel, imgIRequest.clone, nsIImageLoadingContent.addObserver, nsIImageLoadingContent.removeObserver
Reference documentation is generated from Mozilla's source.