use com.android.support:support-emoji

2 files changed, 325 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/utils/EmojiWrapper.java b/src/main/java/de/pixart/messenger/utils/EmojiWrapper.java
new file mode 100644
index 000000000..db2bf1242
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/utils/EmojiWrapper.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2017, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package de.pixart.messenger.utils;
+
+import android.support.text.emoji.EmojiCompat;
+
+public class EmojiWrapper {
+
+    public static CharSequence transform(CharSequence input) {
+        final CharSequence charSequence;
+        if (EmojiCompat.get().getLoadState() == EmojiCompat.LOAD_STATE_SUCCEEDED) {
+            return EmojiCompat.get().process(input);
+        } else {
+            return input;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/utils/Emoticons.java b/src/main/java/de/pixart/messenger/utils/Emoticons.java
new file mode 100644
index 000000000..8cfddf8a4
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/utils/Emoticons.java
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2017, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.utils;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class Emoticons {
+
+    private static final UnicodeRange MISC_SYMBOLS_AND_PICTOGRAPHS = new UnicodeRange(0x1F300, 0x1F5FF);
+    private static final UnicodeRange SUPPLEMENTAL_SYMBOLS = new UnicodeRange(0x1F900, 0x1F9FF);
+    private static final UnicodeRange EMOTICONS = new UnicodeRange(0x1F600, 0x1F64F);
+    private static final UnicodeRange TRANSPORT_SYMBOLS = new UnicodeRange(0x1F680, 0x1F6FF);
+    private static final UnicodeRange MISC_SYMBOLS = new UnicodeRange(0x2600, 0x26FF);
+    private static final UnicodeRange DINGBATS = new UnicodeRange(0x2700, 0x27BF);
+    private static final UnicodeRange ENCLOSED_ALPHANUMERIC_SUPPLEMENT = new UnicodeRange(0x1F100, 0x1F1FF);
+    private static final UnicodeRange ENCLOSED_IDEOGRAPHIC_SUPPLEMENT = new UnicodeRange(0x1F200, 0x1F2FF);
+    private static final UnicodeRange REGIONAL_INDICATORS = new UnicodeRange(0x1F1E6, 0x1F1FF);
+    private static final UnicodeRange GEOMETRIC_SHAPES = new UnicodeRange(0x25A0, 0x25FF);
+    private static final UnicodeRange LATIN_SUPPLEMENT = new UnicodeRange(0x80, 0xFF);
+    private static final UnicodeRange MISC_TECHNICAL = new UnicodeRange(0x2300, 0x23FF);
+    private static final UnicodeRange TAGS = new UnicodeRange(0xE0020, 0xE007F);
+    private static final UnicodeList CYK_SYMBOLS_AND_PUNCTUATION = new UnicodeList(0x3030, 0x303D);
+    private static final UnicodeList LETTERLIKE_SYMBOLS = new UnicodeList(0x2122, 0x2139);
+
+    private static final UnicodeBlocks KEYCAP_COMBINEABLE = new UnicodeBlocks(new UnicodeList(0x23), new UnicodeList(0x2A), new UnicodeRange(0x30, 0x39));
+
+    private static final UnicodeBlocks SYMBOLIZE = new UnicodeBlocks(
+            GEOMETRIC_SHAPES,
+            LATIN_SUPPLEMENT,
+            CYK_SYMBOLS_AND_PUNCTUATION,
+            LETTERLIKE_SYMBOLS,
+            KEYCAP_COMBINEABLE);
+    private static final UnicodeBlocks EMOJIS = new UnicodeBlocks(
+            MISC_SYMBOLS_AND_PICTOGRAPHS,
+            SUPPLEMENTAL_SYMBOLS,
+            EMOTICONS,
+            TRANSPORT_SYMBOLS,
+            MISC_SYMBOLS,
+            DINGBATS,
+            ENCLOSED_ALPHANUMERIC_SUPPLEMENT,
+            ENCLOSED_IDEOGRAPHIC_SUPPLEMENT,
+            MISC_TECHNICAL);
+    private static final int ZWJ = 0x200D;
+    private static final int VARIATION_16 = 0xFE0F;
+    private static final int COMBINING_ENCLOSING_KEYCAP = 0x20E3;
+    private static final int BLACK_FLAG = 0x1F3F4;
+    private static final UnicodeRange FITZPATRICK = new UnicodeRange(0x1F3FB, 0x1F3FF);
+
+    private static List<Symbol> parse(String input) {
+        List<Symbol> symbols = new ArrayList<>();
+        Builder builder = new Builder();
+        boolean needsFinalBuild = false;
+        for (int cp, i = 0; i < input.length(); i += Character.charCount(cp)) {
+            cp = input.codePointAt(i);
+            if (builder.offer(cp)) {
+                needsFinalBuild = true;
+            } else {
+                symbols.add(builder.build());
+                builder = new Builder();
+                if (builder.offer(cp)) {
+                    needsFinalBuild = true;
+                }
+            }
+        }
+        if (needsFinalBuild) {
+            symbols.add(builder.build());
+        }
+        return symbols;
+    }
+
+    public static Pattern generatePattern(CharSequence input) {
+        final StringBuilder pattern = new StringBuilder();
+        for (Symbol symbol : parse(input.toString())) {
+            if (symbol instanceof Emoji) {
+                if (pattern.length() != 0) {
+                    pattern.append('|');
+                }
+                pattern.append(Pattern.quote(symbol.toString()));
+            }
+        }
+        return Pattern.compile(pattern.toString());
+    }
+
+    public static boolean isEmoji(String input) {
+        List<Symbol> symbols = parse(input);
+        return symbols.size() == 1 && symbols.get(0).isEmoji();
+    }
+
+    public static boolean isOnlyEmoji(String input) {
+        List<Symbol> symbols = parse(input);
+        for (Symbol symbol : symbols) {
+            if (!symbol.isEmoji()) {
+                return false;
+            }
+        }
+        return symbols.size() > 0;
+    }
+
+    private static abstract class Symbol {
+
+        private final String value;
+
+        public Symbol(List<Integer> codepoints) {
+            StringBuilder builder = new StringBuilder();
+            for (Integer codepoint : codepoints) {
+                builder.appendCodePoint(codepoint);
+            }
+            this.value = builder.toString();
+        }
+
+        abstract boolean isEmoji();
+
+        @Override
+        public String toString() {
+            return value;
+        }
+    }
+
+    public static class Emoji extends Symbol {
+
+        public Emoji(List<Integer> codepoints) {
+            super(codepoints);
+        }
+
+        @Override
+        boolean isEmoji() {
+            return true;
+        }
+    }
+
+    public static class Other extends Symbol {
+
+        public Other(List<Integer> codepoints) {
+            super(codepoints);
+        }
+
+        @Override
+        boolean isEmoji() {
+            return false;
+        }
+    }
+
+    private static class Builder {
+        private final List<Integer> codepoints = new ArrayList<>();
+
+
+        public boolean offer(int codepoint) {
+            boolean add = false;
+            if (this.codepoints.size() == 0) {
+                if (SYMBOLIZE.contains(codepoint)) {
+                    add = true;
+                } else if (REGIONAL_INDICATORS.contains(codepoint)) {
+                    add = true;
+                } else if (EMOJIS.contains(codepoint) && !FITZPATRICK.contains(codepoint) && codepoint != ZWJ) {
+                    add = true;
+                }
+            } else {
+                int previous = codepoints.get(codepoints.size() - 1);
+                if (codepoints.get(0) == BLACK_FLAG) {
+                    add = TAGS.contains(codepoint);
+                } else if (COMBINING_ENCLOSING_KEYCAP == codepoint) {
+                    add = KEYCAP_COMBINEABLE.contains(previous) || previous == VARIATION_16;
+                } else if (SYMBOLIZE.contains(previous)) {
+                    add = codepoint == VARIATION_16;
+                } else if (REGIONAL_INDICATORS.contains(previous) && REGIONAL_INDICATORS.contains(codepoint)) {
+                    add = codepoints.size() == 1;
+                } else if (previous == VARIATION_16) {
+                    add = isMerger(codepoint);
+                } else if (FITZPATRICK.contains(previous)) {
+                    add = codepoint == ZWJ;
+                } else if (ZWJ == previous) {
+                    add = EMOJIS.contains(codepoint);
+                } else if (isMerger(codepoint)) {
+                    add = true;
+                } else if (codepoint == VARIATION_16 && EMOJIS.contains(previous)) {
+                    add = true;
+                }
+            }
+            if (add) {
+                codepoints.add(codepoint);
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        static boolean isMerger(int codepoint) {
+            return codepoint == ZWJ || FITZPATRICK.contains(codepoint);
+        }
+
+        public Symbol build() {
+            if (codepoints.size() > 0 && SYMBOLIZE.contains(codepoints.get(codepoints.size() - 1))) {
+                return new Other(codepoints);
+            } else if (codepoints.size() > 1 && KEYCAP_COMBINEABLE.contains(codepoints.get(0)) && codepoints.get(codepoints.size() - 1) != COMBINING_ENCLOSING_KEYCAP) {
+                return new Other(codepoints);
+            }
+            return codepoints.size() == 0 ? new Other(codepoints) : new Emoji(codepoints);
+        }
+    }
+
+    public static class UnicodeBlocks implements UnicodeSet {
+        final UnicodeSet[] unicodeSets;
+
+        public UnicodeBlocks(UnicodeSet... sets) {
+            this.unicodeSets = sets;
+        }
+
+        @Override
+        public boolean contains(int codepoint) {
+            for(UnicodeSet unicodeSet : unicodeSets) {
+                if (unicodeSet.contains(codepoint)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+
+    public interface UnicodeSet {
+        boolean contains(int codepoint);
+    }
+
+    public static class UnicodeList implements UnicodeSet {
+
+        private final List<Integer> list;
+
+        public UnicodeList(Integer... codes) {
+            this.list = Arrays.asList(codes);
+        }
+
+        @Override
+        public boolean contains(int codepoint) {
+            return this.list.contains(codepoint);
+        }
+    }
+
+
+    public static class UnicodeRange implements UnicodeSet {
+
+        private final int lower;
+        private final int upper;
+
+        UnicodeRange(int lower, int upper) {
+            this.lower = lower;
+            this.upper = upper;
+        }
+
+        public boolean contains(int codePoint) {
+            return codePoint >= lower && codePoint <= upper;
+        }
+    }
+}
\ No newline at end of file