Emoji.java
/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
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* You should have received a copy of the GNU General Public
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* Original Author: Arnaud Roques
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*/
package net.sourceforge.plantuml.emoji;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
// ::comment when JAVA8
import org.teavm.jso.JSBody;
// ::done
import net.sourceforge.plantuml.emoji.data.Dummy;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.log.Logme;
import net.sourceforge.plantuml.svg.parser.ISvgSpriteParser;
import net.sourceforge.plantuml.svg.parser.SvgSpriteParserFactory;
import net.sourceforge.plantuml.teavm.TeaVM;
import net.sourceforge.plantuml.teavm.browser.TeaVmScriptLoader;
// Emojji from https://twemoji.twitter.com/
// Shorcut from https://api.github.com/emojis
public class Emoji {
private final static Map<String, Emoji> ALL = new HashMap<>();
static {
if (!TeaVM.isTeaVM()) {
final InputStream is = Dummy.class.getResourceAsStream("emoji.txt");
if (is != null)
try (BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
String s = null;
while ((s = br.readLine()) != null)
new Emoji(s);
} catch (IOException e) {
Logme.error(e);
}
}
}
public static Map<String, Emoji> getAll() {
return Collections.unmodifiableMap(new TreeMap<>(ALL));
}
private ISvgSpriteParser parser;
private final String unicode;
private final String shortcut;
private Emoji(String unicode) {
final int x = unicode.indexOf(';');
if (x == -1) {
this.shortcut = null;
} else {
this.shortcut = unicode.substring(x + 1);
if (!TeaVM.isTeaVM()) {
ALL.put(this.shortcut, this);
}
unicode = unicode.substring(0, x);
}
this.unicode = unicode;
if (!TeaVM.isTeaVM()) {
ALL.put(unicode, this);
}
}
public static Emoji retrieve(String name) {
// ::comment when JAVA8
if (TeaVM.isTeaVM())
return retrieveFromJs(name.toLowerCase());
else
// ::done
return ALL.get(name.toLowerCase());
}
// ::comment when JAVA8
private static Emoji retrieveFromJs(String name) {
loadEmojiJsIfNeeded();
String unicode = jsGetShortcut(name);
if (unicode == null)
unicode = name;
final String svgData = jsGetEmojiSvg(unicode);
if (svgData == null)
return null;
return new Emoji(unicode);
}
// ::done
private static volatile boolean emojiJsLoaded = false;
private static void loadEmojiJsIfNeeded() {
// ::comment when JAVA8
if (emojiJsLoaded)
return;
TeaVmScriptLoader.loadOnceSync("emoji.js");
emojiJsLoaded = true;
// ::done
}
// ::comment when JAVA8
@JSBody(params = "name", script = "var s = window.PLANTUML_EMOJI_SHORTCUT;"
+ "return (s && s[name]) ? s[name] : null;")
private static native String jsGetShortcut(String name);
@JSBody(params = "unicode", script = "var e = window.PLANTUML_EMOJI;"
+ "return (e && e[unicode]) ? e[unicode] : null;")
private static native String jsGetEmojiSvg(String unicode);
// ::done
private synchronized void loadIfNeed() throws IOException {
if (parser != null)
return;
final List<String> data = new ArrayList<String>();
if (TeaVM.isTeaVM()) {
// ::comment when JAVA8
final String svgData = jsGetEmojiSvg(unicode);
if (svgData != null)
data.add(svgData);
// ::done
} else {
try (BufferedReader br = new BufferedReader(
new InputStreamReader(Dummy.class.getResourceAsStream(unicode + ".svg")))) {
final String singleLine = br.readLine();
data.add(singleLine);
}
}
this.parser = SvgSpriteParserFactory.create(data);
}
public void drawU(UGraphic ug, double scale, HColor colorForMonochrome) {
try {
loadIfNeed();
} catch (IOException e) {
Logme.error(e);
}
parser.drawU(ug, scale, colorForMonochrome, colorForMonochrome);
}
public String getShortcut() {
return shortcut;
}
// public static void main(String[] args) throws IOException {
// final String outputFile = (args.length > 0) ? args[0]
// : "src/main/resources/teavm/emoji.js";
//
// try (PrintWriter pw = new PrintWriter(new FileWriter(outputFile))) {
// pw.println("// emoji.js - Generated by Emoji.main()");
// pw.println("// Do not edit manually");
// pw.println("(function () {");
// pw.println("window.PLANTUML_EMOJI = window.PLANTUML_EMOJI || {};");
// pw.println("window.PLANTUML_EMOJI_SHORTCUT = window.PLANTUML_EMOJI_SHORTCUT || {};");
// pw.println();
//
// final InputStream is = Dummy.class.getResourceAsStream("emoji.txt");
// if (is == null)
// throw new IOException("Cannot find emoji.txt resource");
//
// int count = 0;
// try (BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
// String line;
// while ((line = br.readLine()) != null) {
// line = line.trim();
// if (line.isEmpty())
// continue;
//
// final String unicode;
// final String shortcut;
// final int semi = line.indexOf(';');
// if (semi == -1) {
// unicode = line;
// shortcut = null;
// } else {
// unicode = line.substring(0, semi);
// shortcut = line.substring(semi + 1);
// }
//
// final String svgContent = readSvgResource(unicode);
// if (svgContent == null) {
// System.err.println("WARNING: No SVG found for " + unicode);
// continue;
// }
//
// pw.println(" window.PLANTUML_EMOJI[\"" + unicode + "\"]=\""
// + escapeForJs(svgContent) + "\";");
//
// if (shortcut != null)
// pw.println(" window.PLANTUML_EMOJI_SHORTCUT[\"" + shortcut + "\"]=\""
// + unicode + "\";");
//
// count++;
// }
// }
//
// pw.println();
// pw.println("})();");
// System.out.println("Generated " + outputFile + " with " + count + " emojis.");
// }
// }
//
// private static String readSvgResource(String unicode) {
// final InputStream svgStream = Dummy.class.getResourceAsStream(unicode + ".svg");
// if (svgStream == null)
// return null;
//
// try (BufferedReader br = new BufferedReader(new InputStreamReader(svgStream))) {
// return br.readLine();
// } catch (IOException e) {
// System.err.println("ERROR reading " + unicode + ".svg: " + e.getMessage());
// return null;
// }
// }
//
// private static String escapeForJs(String s) {
// return s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\n", "\\n").replace("\r", "");
// }
}