void updateZoomControls() {
if (mZoomButtonsController == null) return;
boolean canZoomIn = mContentViewCore.canZoomIn();
boolean canZoomOut = mContentViewCore.canZoomOut();
if (!canZoomIn && !canZoomOut) {
// Hide the zoom in and out buttons if the page cannot zoom
mZoomButtonsController.getZoomControls().setVisibility(View.GONE);
} else {
// Set each one individually, as a page may be able to zoom in or out
mZoomButtonsController.setZoomInEnabled(canZoomIn);
mZoomButtonsController.setZoomOutEnabled(canZoomOut);
}
}
private void updateZoomButtonsEnabled() {
ImageViewTouch imageView = mImageView;
float scale = imageView.getScale();
mZoomButtonsController.setZoomInEnabled(scale < imageView.mMaxZoom);
mZoomButtonsController.setZoomOutEnabled(scale > 1);
}
