diff options
Diffstat (limited to 'include/gui/SurfaceControl.h')
| -rw-r--r-- | include/gui/SurfaceControl.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/gui/SurfaceControl.h b/include/gui/SurfaceControl.h index 3cff7df260..712a323337 100644 --- a/include/gui/SurfaceControl.h +++ b/include/gui/SurfaceControl.h @@ -62,6 +62,27 @@ public: status_t setLayerStack(uint32_t layerStack); status_t setLayer(int32_t layer); + + // Sets a Z order relative to the Surface specified by "relativeTo" but + // without becoming a full child of the relative. Z-ordering works exactly + // as if it were a child however. + // + // As a nod to sanity, only non-child surfaces may have a relative Z-order. + // + // This overrides any previous and is overriden by any future calls + // to setLayer. + // + // If the relative dissapears, the Surface will have no layer and be + // invisible, until the next time set(Relative)Layer is called. + // + // TODO: This is probably a hack. Currently it exists only to work around + // some framework usage of the hidden APPLICATION_MEDIA_OVERLAY window type + // which allows inserting a window between a SurfaceView and it's main application + // window. However, since we are using child windows for the SurfaceView, but not using + // child windows elsewhere in O, the WindowManager can't set the layer appropriately. + // This is only used by the "TvInputService" and following the port of ViewRootImpl + // to child surfaces, we can then port this and remove this method. + status_t setRelativeLayer(const sp<IBinder>& relativeTo, int32_t layer); status_t setPosition(float x, float y); status_t setSize(uint32_t w, uint32_t h); status_t hide(); |