SubdocumentScrollHelper(PanZoomController controller) { mPanZoomController = controller; // mUiHandler will be bound to the UI thread since that's where this constructor runs mUiHandler = new Handler(); mPendingDisplacement = new PointF(); GeckoAppShell.registerGeckoEventListener(MESSAGE_PANNING_OVERRIDE, this); GeckoAppShell.registerGeckoEventListener(MESSAGE_CANCEL_OVERRIDE, this); GeckoAppShell.registerGeckoEventListener(MESSAGE_SCROLL_ACK, this); }
/** Attaches the root layer to the layer controller so that Gecko appears. */ @Override public void setLayerController(LayerController layerController) { super.setLayerController(layerController); layerController.setRoot(mTileLayer); if (mGeckoViewport != null) { layerController.setViewportMetrics(mGeckoViewport); } GeckoAppShell.registerGeckoEventListener("Viewport:UpdateAndDraw", this); GeckoAppShell.registerGeckoEventListener("Viewport:UpdateLater", this); GeckoAppShell.registerGeckoEventListener("Checkerboard:Toggle", this); sendResizeEventIfNecessary(); }