Plugins:CoreAnimationDrawingModelR2: Difference between revisions
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*Last modified: March 9, 2010 | *Last modified: March 9, 2010 | ||
*Authors: | *Authors: Benoit Girard (Mozilla Corporation), Josh Aas (Mozilla Corporation) | ||
*Contributors: Stuart Morgan (Google) | *Contributors: Stuart Morgan (Google) | ||
Revision as of 16:07, 9 March 2010
Status
Under consideration
Background
This defines an extension to the Core Animation drawing model which adds support for event-driven drawing. We propose adding the following "Redrawing" section. This should be backwards compatible with the existing spec.
Current Proposal
- Last modified: March 9, 2010
- Authors: Benoit Girard (Mozilla Corporation), Josh Aas (Mozilla Corporation)
- Contributors: Stuart Morgan (Google)
Redrawing
Plug-ins can schedule repaints via their CALayer's nextFrameTime or they may paint at any time using NPN_InvalidateRect.
All plug-ins should implement nextFrameTime for their CALayer. Plug-ins that want their next repaint to happen via NPN_InvalidateRect can return 'INFINITY' from nextFrameTime.
Browsers should re-check nextFrameTime any time a paint happens, whether it was scheduled via nextFrameTime or forced via NPN_InvalidateRect. This allows plugins to change their next frame time and to re-start scheduled painting after returning 'inf' from nextFrameTime.