private void updateViewport(final boolean onlyUpdatePageSize) {
// save and restore the viewport size stored in java; never let the
// JS-side viewport dimensions override the java-side ones because
// java is the One True Source of this information, and allowing JS
// to override can lead to race conditions where this data gets clobbered.
FloatSize viewportSize = getLayerController().getViewportSize();
mGeckoViewport = mNewGeckoViewport;
mGeckoViewport.setSize(viewportSize);
LayerController controller = getLayerController();
PointF displayportOrigin = mGeckoViewport.getDisplayportOrigin();
mTileLayer.setOrigin(PointUtils.round(displayportOrigin));
mTileLayer.setResolution(mGeckoViewport.getZoomFactor());
if (onlyUpdatePageSize) {
// Don't adjust page size when zooming unless zoom levels are
// approximately equal.
if (FloatUtils.fuzzyEquals(controller.getZoomFactor(), mGeckoViewport.getZoomFactor()))
controller.setPageSize(mGeckoViewport.getPageSize());
} else {
controller.setViewportMetrics(mGeckoViewport);
controller.abortPanZoomAnimation();
}
}
