private void createSelectionLayer(Context context) {
final LayoutInflater inflater =
(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mSelectionDragLayer = (DragLayer) inflater.inflate(R.layout.selection_drag_layer, null);
mDragController = new DragController(context);
mDragController.setDragListener(this);
mDragController.addDropTarget(mSelectionDragLayer);
mSelectionDragLayer.setDragController(mDragController);
mStartSelectionHandle = (ImageView) mSelectionDragLayer.findViewById(R.id.startHandle);
mStartSelectionHandle.setTag(HandleType.START);
mEndSelectionHandle = (ImageView) mSelectionDragLayer.findViewById(R.id.endHandle);
mEndSelectionHandle.setTag(HandleType.END);
final OnTouchListener handleTouchListener =
new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
boolean handledHere = false;
if (event.getAction() == MotionEvent.ACTION_DOWN) {
handledHere = startDrag(v);
mLastTouchedSelectionHandle = (HandleType) v.getTag();
}
return handledHere;
}
};
mStartSelectionHandle.setOnTouchListener(handleTouchListener);
mEndSelectionHandle.setOnTouchListener(handleTouchListener);
}
public void run() {
if (mSelectionBounds != null) {
mWebView.addView(mSelectionDragLayer);
drawSelectionHandles();
final int contentHeight =
(int) Math.ceil(getDensityDependentValue(mWebView.getContentHeight(), mActivity));
final int contentWidth = mWebView.getWidth();
ViewGroup.LayoutParams layerParams = mSelectionDragLayer.getLayoutParams();
layerParams.height = contentHeight;
layerParams.width = Math.max(contentWidth, mContentWidth);
mSelectionDragLayer.setLayoutParams(layerParams);
if (mSelectionListener != null) {
mSelectionListener.startSelection();
}
}
}