package org.thoughtcrime.SMP.components.emoji;
import android.text.InputFilter;
import android.text.Spannable;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.TextUtils.TruncateAt;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.TextView;
public class EmojiFilter implements InputFilter, OnGlobalLayoutListener {
private TextView view;
public EmojiFilter(TextView view) {
this.view = view;
}
@Override public CharSequence filter(CharSequence source, int start, int end,
Spanned dest, int dstart, int dend)
{
char[] v = new char[end - start];
TextUtils.getChars(source, start, end, v, 0);
Spannable emojified = EmojiProvider.getInstance(view.getContext()).emojify(new String(v), view);
if (source instanceof Spanned) {
TextUtils.copySpansFrom((Spanned) source, start, end, null, emojified, 0);
}
view.getViewTreeObserver().addOnGlobalLayoutListener(this);
if (view.getWidth() == 0 || view.getEllipsize() != TruncateAt.END) {
return emojified;
} else {
return TextUtils.ellipsize(emojified,
view.getPaint(),
view.getWidth() - view.getPaddingRight() - view.getPaddingLeft(),
TruncateAt.END);
}
}
@SuppressWarnings("deprecation")
@Override public void onGlobalLayout() {
if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
else {
view.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
view.invalidate();
}
}