Import Android SDK Platform PI [4335822]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4335822 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-sources-4335822.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: Ic8f04be005a71c2b9abeaac754d8da8d6f9a2c32

1 files changed, 109 insertions, 0 deletions

diff --git a/android/text/Emoji.java b/android/text/Emoji.java
new file mode 100644
index 00000000..d33aad99
--- /dev/null
+++ b/android/text/Emoji.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.text;
+
+import android.icu.lang.UCharacter;
+import android.icu.lang.UProperty;
+
+/**
+ * An utility class for Emoji.
+ * @hide
+ */
+public class Emoji {
+    public static int COMBINING_ENCLOSING_KEYCAP = 0x20E3;
+
+    public static int ZERO_WIDTH_JOINER = 0x200D;
+
+    public static int VARIATION_SELECTOR_16 = 0xFE0F;
+
+    public static int CANCEL_TAG = 0xE007F;
+
+    /**
+     * Returns true if the given code point is regional indicator symbol.
+     */
+    public static boolean isRegionalIndicatorSymbol(int codePoint) {
+        return 0x1F1E6 <= codePoint && codePoint <= 0x1F1FF;
+    }
+
+    /**
+     * Returns true if the given code point is emoji modifier.
+     */
+    public static boolean isEmojiModifier(int codePoint) {
+        return UCharacter.hasBinaryProperty(codePoint, UProperty.EMOJI_MODIFIER);
+    }
+
+    // Returns true if the given code point is emoji modifier base.
+    public static boolean isEmojiModifierBase(int codePoint) {
+        // These two characters were removed from Emoji_Modifier_Base in Emoji 4.0, but we need to
+        // keep them as emoji modifier bases since there are fonts and user-generated text out there
+        // that treats these as potential emoji bases.
+        if (codePoint == 0x1F91D || codePoint == 0x1F93C) {
+            return true;
+        }
+        // Emoji Modifier Base characters new in Unicode emoji 5.0.
+        // From http://www.unicode.org/Public/emoji/5.0/emoji-data.txt
+        // TODO: Remove once emoji-data.text 5.0 is in ICU or update to 6.0.
+        if (codePoint == 0x1F91F
+                || (0x1F931 <= codePoint && codePoint <= 0x1F932)
+                || (0x1F9D1 <= codePoint && codePoint <= 0x1F9DD)) {
+            return true;
+        }
+        return UCharacter.hasBinaryProperty(codePoint, UProperty.EMOJI_MODIFIER_BASE);
+    }
+
+    /**
+     * Returns true if the character is a new emoji still not supported in our version of ICU.
+     */
+    public static boolean isNewEmoji(int codePoint) {
+        // Emoji characters new in Unicode emoji 5.0.
+        // From http://www.unicode.org/Public/emoji/5.0/emoji-data.txt
+        // TODO: Remove once emoji-data.text 5.0 is in ICU or update to 6.0.
+        if (codePoint < 0x1F6F7 || codePoint > 0x1F9E6) {
+            // Optimization for characters outside the new emoji range.
+            return false;
+        }
+        return (0x1F6F7 <= codePoint && codePoint <= 0x1F6F8)
+                || codePoint == 0x1F91F
+                || (0x1F928 <= codePoint && codePoint <= 0x1F92F)
+                || (0x1F931 <= codePoint && codePoint <= 0x1F932)
+                || codePoint == 0x1F94C
+                || (0x1F95F <= codePoint && codePoint <= 0x1F96B)
+                || (0x1F992 <= codePoint && codePoint <= 0x1F997)
+                || (0x1F9D0 <= codePoint && codePoint <= 0x1F9E6);
+    }
+
+    /**
+     * Returns true if the character has Emoji property.
+     */
+    public static boolean isEmoji(int codePoint) {
+        return isNewEmoji(codePoint) || UCharacter.hasBinaryProperty(codePoint, UProperty.EMOJI);
+    }
+
+    // Returns true if the character can be a base character of COMBINING ENCLOSING KEYCAP.
+    public static boolean isKeycapBase(int codePoint) {
+        return ('0' <= codePoint && codePoint <= '9') || codePoint == '#' || codePoint == '*';
+    }
+
+    /**
+     * Returns true if the character can be a part of tag_spec in emoji tag sequence.
+     *
+     * Note that 0xE007F (CANCEL TAG) is not included.
+     */
+    public static boolean isTagSpecChar(int codePoint) {
+        return 0xE0020 <= codePoint && codePoint <= 0xE007E;
+    }
+}