mirror of
https://github.com/oxen-io/session-android.git
synced 2025-12-03 08:02:24 +00:00
Switched to new emoji lookup pattern, added rendering support.
This commit is contained in:
Moxie Marlinspike
@@ -7,170 +7,100 @@ import android.text.SpannableString;
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import android.text.style.ImageSpan;
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import android.util.Log;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class Emoji {
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public static final HashMap<String, String> EMOJI_ASSET_CODE_MAP = new HashMap<String, String>();
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public static final HashMap<Pattern, String> EMOJI_CODE_ASSET_MAP = new HashMap<Pattern, String>();
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private static Emoji instance = null;
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public static final ArrayList<String> EMOJI_ASSETS = new ArrayList<String>() {{
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add("1f601");
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add("1f602");
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add("1f603");
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add("1f604");
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add("1f605");
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add("1f606");
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add("1f609");
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add("1f60a");
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add("1f60b");
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add("1f60c");
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add("1f60d");
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add("1f60f");
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add("1f612");
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add("1f613");
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add("1f614");
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add("1f616");
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add("1f618");
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add("1f61a");
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add("1f61c");
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add("1f61d");
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add("1f61e");
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add("1f620");
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add("1f621");
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add("1f622");
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add("1f623");
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add("1f624");
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add("1f625");
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add("1f628");
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add("1f629");
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add("1f62a");
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add("1f62b");
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add("1f62d");
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add("1f630");
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add("1f631");
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add("1f632");
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add("1f633");
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add("1f635");
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add("1f637");
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add("1f638");
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add("1f639");
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add("1f63a");
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add("1f63b");
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add("1f63c");
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add("1f63d");
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add("1f63e");
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add("1f63f");
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add("1f640");
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add("1f645");
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add("1f646");
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add("1f647");
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add("1f648");
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add("1f649");
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add("1f64a");
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add("1f64b");
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add("1f64c");
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add("1f64d");
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add("1f64e");
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add("1f64f");
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}};
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public static ArrayList<String> EMOJI_CODES = new ArrayList<String>() {{
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add("\ud83d\ude01");
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add("\ud83d\ude02");
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add("\ud83d\ude03");
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add("\ud83d\ude04");
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add("\ud83d\ude05");
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add("\ud83d\ude06");
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add("\ud83d\ude09");
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add("\ud83d\ude0a");
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add("\ud83d\ude0b");
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add("\ud83d\ude0c");
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add("\ud83d\ude0d");
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add("\ud83d\ude0f");
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add("\ud83d\ude12");
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add("\ud83d\ude13");
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add("\ud83d\ude14");
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add("\ud83d\ude16");
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add("\ud83d\ude18");
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add("\ud83d\ude1a");
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add("\ud83d\ude1c");
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add("\ud83d\ude1d");
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add("\ud83d\ude1e");
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add("\ud83d\ude20");
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add("\ud83d\ude21");
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add("\ud83d\ude22");
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add("\ud83d\ude23");
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add("\ud83d\ude24");
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add("\ud83d\ude25");
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add("\ud83d\ude28");
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add("\ud83d\ude29");
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add("\ud83d\ude2a");
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add("\ud83d\ude2b");
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add("\ud83d\ude2d");
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add("\ud83d\ude30");
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add("\ud83d\ude31");
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add("\ud83d\ude32");
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add("\ud83d\ude33");
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add("\ud83d\ude35");
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add("\ud83d\ude37");
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add("\ud83d\ude38");
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add("\ud83d\ude39");
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add("\ud83d\ude3a");
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add("\ud83d\ude3b");
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add("\ud83d\ude3c");
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add("\ud83d\ude3d");
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add("\ud83d\ude3e");
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add("\ud83d\ude3f");
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add("\ud83d\ude40");
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add("\ud83d\ude45");
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add("\ud83d\ude46");
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add("\ud83d\ude47");
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add("\ud83d\ude48");
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add("\ud83d\ude49");
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add("\ud83d\ude4a");
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add("\ud83d\ude4b");
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add("\ud83d\ude4c");
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add("\ud83d\ude4d");
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add("\ud83d\ude4e");
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add("\ud83d\ude4f");
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}};
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static {
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for (int i=0;i<EMOJI_ASSETS.size();i++) {
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EMOJI_ASSET_CODE_MAP.put(EMOJI_ASSETS.get(i), EMOJI_CODES.get(i));
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EMOJI_CODE_ASSET_MAP.put(Pattern.compile(EMOJI_CODES.get(i)), EMOJI_ASSETS.get(i));
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public synchronized static Emoji getInstance(Context context) {
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if (instance == null) {
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instance = new Emoji(context);
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}
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return instance;
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}
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public static Spannable emojify(Context context, String text) {
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try {
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Spannable spannable = new SpannableString(text);
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private static final Pattern EMOJI_RANGE = Pattern.compile("[\ud83d\ude01-\ud83d\ude4f]");
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public static final double EMOJI_LARGE = 1;
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public static final double EMOJI_SMALL = 0.7;
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for (Map.Entry<Pattern, String> entry : EMOJI_CODE_ASSET_MAP.entrySet()) {
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Matcher matcher = entry.getKey().matcher(spannable);
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private final Context context;
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private final String[] emojiAssets;
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private final Set<String> emojiAssetsSet;
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while (matcher.find()) {
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Drawable asset = Drawable.createFromStream(context.getAssets().open(entry.getValue() + ".png"), null);
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asset.setBounds(0, 0, asset.getIntrinsicWidth(), asset.getIntrinsicHeight());
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private Emoji(Context context) {
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this.context = context.getApplicationContext();
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this.emojiAssets = initializeEmojiAssets();
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this.emojiAssetsSet = new HashSet<String>();
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Collections.addAll(this.emojiAssetsSet, emojiAssets);
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}
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public int getEmojiAssetCount() {
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return emojiAssets.length;
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}
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public String getEmojiUnicode(int position) {
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String hexString = emojiAssets[position].split("\\.")[0];
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Integer unicodePoint = Integer.parseInt(hexString, 16);
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return new String(Character.toChars(unicodePoint));
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}
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public Drawable getEmojiDrawable(int position) {
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return getEmojiDrawable(emojiAssets[position]);
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}
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public SpannableString emojify(String text) {
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return emojify(new SpannableString(text), EMOJI_LARGE);
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}
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public SpannableString emojify(SpannableString text, double size) {
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if (text.toString().contains("\ud83d")) {
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Matcher matches = EMOJI_RANGE.matcher(text);
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while (matches.find()) {
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String resource = Integer.toHexString(matches.group().codePointAt(0)) + ".png";
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if (emojiAssetsSet.contains(resource)) {
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Drawable drawable = getEmojiDrawable(resource);
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drawable.setBounds(0, 0, (int)(drawable.getIntrinsicWidth()*size),
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(int)(drawable.getIntrinsicHeight()*size));
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ImageSpan imageSpan = new ImageSpan(drawable, ImageSpan.ALIGN_BOTTOM);
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text.setSpan(imageSpan, matches.start(), matches.end(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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ImageSpan imageSpan = new ImageSpan(asset, ImageSpan.ALIGN_BASELINE);
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Log.w("Emoji", "Replacing text with: " + imageSpan);
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spannable.setSpan(imageSpan,matcher.start(), matcher.end(),
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Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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}
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}
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return spannable;
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return text;
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}
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private Drawable getEmojiDrawable(String assetName) {
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try {
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return Drawable.createFromStream(context.getAssets().open("emoji" + File.separator + assetName), null);
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} catch (IOException e) {
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throw new AssertionError(e);
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}
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}
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private String[] initializeEmojiAssets() {
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try {
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return context.getAssets().list("emoji");
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} catch (IOException e) {
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Log.w("Emoji", e);
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return new String[0];
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}
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}
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}
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