Implemented simple Kodi markup code applier for the Now Playing fragment (#471)
* Implemented simple Kodi markup code applier for the Now Playing fragment * Moved to UIUtils; added early exit; now handles nesting of the same type * Added handlers for LOWERCASE, CAPITALIZE, LIGHT and COLOR - LOWERCASE and CAPITALIZE work, LIGHT and COLOR are just stripped out - inlined the TextAppearanceSpan new's. Turns out they can't be reused. * updated javadoc * fixed crash when capitalizing an empty word
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Mon Zafra
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@ -21,6 +21,7 @@ import android.os.Bundle;
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import android.os.Handler;
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import android.support.v4.app.Fragment;
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import android.text.TextUtils;
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import android.text.util.Linkify;
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import android.util.DisplayMetrics;
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import android.view.LayoutInflater;
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import android.view.MenuItem;
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@ -776,7 +777,7 @@ public class NowPlayingFragment extends Fragment
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if (!TextUtils.isEmpty(descriptionPlot)) {
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mediaDescription.setVisibility(View.VISIBLE);
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mediaDescription.setText(descriptionPlot);
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mediaDescription.setText(UIUtils.applyMarkup(getContext(), descriptionPlot));
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} else {
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mediaDescription.setVisibility(View.GONE);
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}
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@ -30,7 +30,9 @@ import android.preference.PreferenceManager;
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import android.support.annotation.NonNull;
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import android.support.v4.widget.SwipeRefreshLayout;
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import android.support.v7.app.AlertDialog;
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import android.text.SpannableStringBuilder;
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import android.text.TextUtils;
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import android.text.style.TextAppearanceSpan;
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import android.util.DisplayMetrics;
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import android.view.LayoutInflater;
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import android.view.View;
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@ -54,6 +56,8 @@ import org.xbmc.kore.ui.widgets.RepeatModeButton;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* General UI Utils
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@ -607,4 +611,181 @@ public class UIUtils {
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button.setMode(RepeatModeButton.MODE.ALL);
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}
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}
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/**
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* Replaces some BBCode-ish tagged text with styled spans.
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* <p>
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* Recognizes and styles CR, B, I, UPPERCASE, LOWERCASE and CAPITALIZE; recognizes
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* and strips out LIGHT and COLOR. This is very strict/dumb, it only recognizes
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* uppercase tags with no spaces around them.
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*
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* @param context Activity context needed to resolve the style resources
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* @param src The text to style
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* @return a styled CharSequence that can be passed to a {@link TextView#setText(CharSequence)}
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* or derivatives.
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*/
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public static SpannableStringBuilder applyMarkup(Context context, String src) {
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SpannableStringBuilder sb = new SpannableStringBuilder();
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int start = src.indexOf('[');
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if (start == -1) {
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sb.append(src);
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return sb;
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}
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if (start > 0) {
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sb.append(src, 0, start);
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}
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Nestable upper = new Nestable();
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Nestable lower = new Nestable();
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Nestable title = new Nestable();
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Nestable bold = new Nestable();
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Nestable italic = new Nestable();
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Nestable light = new Nestable();
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Nestable color = new Nestable();
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Pattern colorTag = Pattern.compile("^\\[COLOR [^\\]]+\\]");
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for (int i = start, length = src.length(); i < length;) {
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String s = src.substring(i);
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int nextTag = s.indexOf('[');
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if (nextTag == -1) {
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sb.append(s);
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break;
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}
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if (nextTag > 0) {
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sb.append(s, 0, nextTag);
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i += nextTag;
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} else if (s.startsWith("[CR]")) {
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sb.append('\n');
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i += 4;
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} else if (s.startsWith("[UPPERCASE]")) {
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if (upper.start()) {
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upper.index = sb.length();
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}
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i += 11;
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} else if (s.startsWith("[/UPPERCASE]")) {
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if (upper.end()) {
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String sub = sb.subSequence(upper.index, sb.length()).toString();
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sb.replace(upper.index, sb.length(), sub.toUpperCase());
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} else if (upper.imbalanced()) {
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sb.append("[/UPPERCASE]");
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}
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i += 12;
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} else if (s.startsWith("[B]")) {
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if (bold.start()) {
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bold.index = sb.length();
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}
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i += 3;
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} else if (s.startsWith("[/B]")) {
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if (bold.end()) {
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sb.setSpan(new TextAppearanceSpan(context, R.style.TextAppearance_Bold),
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bold.index, sb.length(), 0);
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} else if (bold.imbalanced()) {
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sb.append("[/B]");
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}
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i += 4;
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} else if (s.startsWith("[I]")) {
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if (italic.start()) {
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italic.index = sb.length();
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}
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i += 3;
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} else if (s.startsWith("[/I]")) {
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if (italic.end()) {
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sb.setSpan(new TextAppearanceSpan(context, R.style.TextAppearance_Italic),
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italic.index, sb.length(), 0);
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} else if (italic.imbalanced()) {
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sb.append("[/I]");
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}
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i += 4;
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} else if (s.startsWith("[LOWERCASE]")) {
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if (lower.start()) {
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lower.index = sb.length();
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}
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i += 11;
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} else if (s.startsWith("[/LOWERCASE]")) {
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if (lower.end()) {
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String sub = sb.subSequence(lower.index, sb.length()).toString();
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sb.replace(lower.index, sb.length(), sub.toLowerCase());
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} else if (lower.imbalanced()) {
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sb.append("[/LOWERCASE]");
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}
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i += 12;
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} else if (s.startsWith("[CAPITALIZE]")) {
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if (title.start()) {
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title.index = sb.length();
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}
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i += 12;
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} else if (s.startsWith("[/CAPITALIZE]")) {
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if (title.end()) {
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String sub = sb.subSequence(title.index, sb.length()).toString();
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sb.replace(title.index, sb.length(), toTitleCase(sub));
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} else if (title.imbalanced()) {
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sb.append("[/CAPITALIZE]");
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}
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i += 13;
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} else if (s.startsWith("[LIGHT]")) {
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light.start();
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i += 7;
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} else if (s.startsWith("[/LIGHT]")) {
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light.end();
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if (light.imbalanced()) {
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sb.append("[/LIGHT]");
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}
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i += 8;
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} else if (s.startsWith("[/COLOR]")) {
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color.end();
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if (color.imbalanced()) {
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sb.append("[/COLOR]");
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}
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i += 8;
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} else {
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Matcher m = colorTag.matcher(s);
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if (m.find()) {
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color.start();
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i += m.end();
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} else {
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sb.append('[');
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i += 1;
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}
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}
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}
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return sb;
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}
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private static class Nestable {
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int index = 0;
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int level = 0;
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/**
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* @return true if we just opened the first tag
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*/
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boolean start() {
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return level++ == 0;
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}
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/**
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* @return true if we just closed the last open tag
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*/
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boolean end() {
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return --level == 0;
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}
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/**
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* @return true if we found a close tag when there are no open tags
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*/
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boolean imbalanced() {
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if (level < 0) {
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level = 0;
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return true;
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}
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return false;
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}
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}
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private static String toTitleCase(String text) {
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StringBuilder sb = new StringBuilder();
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for (String word : text.toLowerCase().split("\\b")) {
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if (word.isEmpty()) continue;
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sb.append(Character.toUpperCase(word.charAt(0)));
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sb.append(word, 1, word.length());
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}
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return sb.toString();
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}
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}
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@ -325,5 +325,11 @@
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<item name="android:textSize">@dimen/text_size_xlarge</item>
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</style>
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<style name="TextAppearance.Bold">
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<item name="android:textStyle">bold</item>
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</style>
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<style name="TextAppearance.Italic">
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<item name="android:textStyle">italic</item>
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</style>
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</resources>
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