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package org.wordpress.android.widgets;
import android.content.Context;
import android.content.res.TypedArray;
import android.support.v7.widget.AppCompatTextView;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextUtils;
import android.util.AttributeSet;
import org.wordpress.android.R;
/**
* custom TextView used in layouts - enables keeping custom typeface handling in one place (so we
* avoid having to set the typeface for every single TextView in every single activity)
*/
public class WPTextView extends AppCompatTextView {
protected boolean mFixWidowWordEnabled;
public WPTextView(Context context) {
super(context, null);
TypefaceCache.setCustomTypeface(context, this, null);
}
public WPTextView(Context context, AttributeSet attrs) {
super(context, attrs);
TypefaceCache.setCustomTypeface(context, this, attrs);
readCustomAttrs(context, attrs);
}
public WPTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypefaceCache.setCustomTypeface(context, this, attrs);
readCustomAttrs(context, attrs);
}
public void setFixWidowWord(boolean enabled) {
mFixWidowWordEnabled = enabled;
}
@Override
public void setText(CharSequence text, BufferType type) {
if (!mFixWidowWordEnabled) {
super.setText(text, type);
return;
}
Spannable out;
int lastSpace = text.toString().lastIndexOf(' ');
if (lastSpace != -1 && lastSpace < text.length() - 1) {
// Replace last space character by a non breaking space.
CharSequence tmpText = replaceCharacter(text, lastSpace, "\u00A0");
out = new SpannableString(tmpText);
// Restore spans if text is an instance of Spanned
if (text instanceof Spanned) {
TextUtils.copySpansFrom((Spanned) text, 0, text.length(), null, out, 0);
}
} else {
out = new SpannableString(text);
}
super.setText(out, type);
}
private void readCustomAttrs(Context context, AttributeSet attrs) {
TypedArray array = context.getTheme().obtainStyledAttributes(attrs, R.styleable.WPTextView, 0, 0);
if (array != null) {
mFixWidowWordEnabled = array.getBoolean(R.styleable.WPTextView_fixWidowWords, false);
if (mFixWidowWordEnabled) {
// Force text update
setText(getText());
}
}
}
private CharSequence replaceCharacter(CharSequence source, int charIndex, CharSequence replacement) {
if (charIndex != -1 && charIndex < source.length() - 1) {
return TextUtils.concat(source.subSequence(0, charIndex), replacement, source.subSequence(charIndex + 1,
source.length()));
}
return source;
}
}
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