/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
package com.facebook.react.flat;
import javax.annotation.Nullable;
import android.text.Layout;
import android.text.Spanned;
/* package */ final class TextNodeRegion extends NodeRegion {
private @Nullable Layout mLayout;
/* package */ TextNodeRegion(
float left,
float top,
float right,
float bottom,
int tag,
boolean isVirtual,
@Nullable Layout layout) {
super(left, top, right, bottom, tag, isVirtual);
mLayout = layout;
}
public void setLayout(Layout layout) {
mLayout = layout;
}
/* package */ @Nullable Layout getLayout() {
return mLayout;
}
/* package */ int getReactTag(float touchX, float touchY) {
if (mLayout != null) {
CharSequence text = mLayout.getText();
if (text instanceof Spanned) {
int y = Math.round(touchY - getTop());
if (y >= mLayout.getLineTop(0) && y < mLayout.getLineBottom(mLayout.getLineCount() - 1)) {
float x = Math.round(touchX - getLeft());
int line = mLayout.getLineForVertical(y);
if (mLayout.getLineLeft(line) <= x && x <= mLayout.getLineRight(line)) {
int off = mLayout.getOffsetForHorizontal(line, x);
Spanned spanned = (Spanned) text;
RCTRawText[] link = spanned.getSpans(off, off, RCTRawText.class);
if (link.length != 0) {
return link[0].getReactTag();
}
}
}
}
}
return super.getReactTag(touchX, touchY);
}
@Override
boolean matchesTag(int tag) {
if (super.matchesTag(tag)) {
return true;
}
if (mLayout != null) {
Spanned text = (Spanned) mLayout.getText();
RCTRawText[] spans = text.getSpans(0, text.length(), RCTRawText.class);
for (RCTRawText span : spans) {
if (span.getReactTag() == tag) {
return true;
}
}
}
return false;
}
}