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-rw-r--r--app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js55
1 files changed, 30 insertions, 25 deletions
diff --git a/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js b/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js
index e9defb62cf8..c5f9fcf6358 100644
--- a/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js
+++ b/app/assets/javascripts/emoji/support/is_emoji_unicode_supported.js
@@ -13,9 +13,11 @@ const rainbowCodePoint = 127752; // parseInt('1F308', 16)
function isRainbowFlagEmoji(emojiUnicode) {
const characters = Array.from(emojiUnicode);
// Length 4 because flags are made of 2 characters which are surrogate pairs
- return emojiUnicode.length === 4 &&
+ return (
+ emojiUnicode.length === 4 &&
characters[0].codePointAt(0) === baseFlagCodePoint &&
- characters[1].codePointAt(0) === rainbowCodePoint;
+ characters[1].codePointAt(0) === rainbowCodePoint
+ );
}
// Chrome <57 renders keycaps oddly
@@ -26,22 +28,28 @@ function isKeycapEmoji(emojiUnicode) {
}
// Check for a skin tone variation emoji which aren't always supported
-const tone1 = 127995;// parseInt('1F3FB', 16)
-const tone5 = 127999;// parseInt('1F3FF', 16)
+const tone1 = 127995; // parseInt('1F3FB', 16)
+const tone5 = 127999; // parseInt('1F3FF', 16)
function isSkinToneComboEmoji(emojiUnicode) {
- return emojiUnicode.length > 2 && Array.from(emojiUnicode).some((char) => {
- const cp = char.codePointAt(0);
- return cp >= tone1 && cp <= tone5;
- });
+ return (
+ emojiUnicode.length > 2 &&
+ Array.from(emojiUnicode).some(char => {
+ const cp = char.codePointAt(0);
+ return cp >= tone1 && cp <= tone5;
+ })
+ );
}
// macOS supports most skin tone emoji's but
// doesn't support the skin tone versions of horse racing
-const horseRacingCodePoint = 127943;// parseInt('1F3C7', 16)
+const horseRacingCodePoint = 127943; // parseInt('1F3C7', 16)
function isHorceRacingSkinToneComboEmoji(emojiUnicode) {
const firstCharacter = Array.from(emojiUnicode)[0];
- return firstCharacter && firstCharacter.codePointAt(0) === horseRacingCodePoint &&
- isSkinToneComboEmoji(emojiUnicode);
+ return (
+ firstCharacter &&
+ firstCharacter.codePointAt(0) === horseRacingCodePoint &&
+ isSkinToneComboEmoji(emojiUnicode)
+ );
}
// Check for `family_*`, `kiss_*`, `couple_*`
@@ -52,7 +60,7 @@ const personEndCodePoint = 128105; // parseInt('1F469', 16)
function isPersonZwjEmoji(emojiUnicode) {
let hasPersonEmoji = false;
let hasZwj = false;
- Array.from(emojiUnicode).forEach((character) => {
+ Array.from(emojiUnicode).forEach(character => {
const cp = character.codePointAt(0);
if (cp === zwj) {
hasZwj = true;
@@ -80,10 +88,7 @@ function checkFlagEmojiSupport(unicodeSupportMap, emojiUnicode) {
// in `isEmojiUnicodeSupported` logic
function checkSkinToneModifierSupport(unicodeSupportMap, emojiUnicode) {
const isSkinToneResult = isSkinToneComboEmoji(emojiUnicode);
- return (
- (unicodeSupportMap.skinToneModifier && isSkinToneResult) ||
- !isSkinToneResult
- );
+ return (unicodeSupportMap.skinToneModifier && isSkinToneResult) || !isSkinToneResult;
}
// Helper func so we don't have to run `isHorceRacingSkinToneComboEmoji` twice
@@ -91,8 +96,7 @@ function checkSkinToneModifierSupport(unicodeSupportMap, emojiUnicode) {
function checkHorseRacingSkinToneComboEmojiSupport(unicodeSupportMap, emojiUnicode) {
const isHorseRacingSkinToneResult = isHorceRacingSkinToneComboEmoji(emojiUnicode);
return (
- (unicodeSupportMap.horseRacing && isHorseRacingSkinToneResult) ||
- !isHorseRacingSkinToneResult
+ (unicodeSupportMap.horseRacing && isHorseRacingSkinToneResult) || !isHorseRacingSkinToneResult
);
}
@@ -100,10 +104,7 @@ function checkHorseRacingSkinToneComboEmojiSupport(unicodeSupportMap, emojiUnico
// in `isEmojiUnicodeSupported` logic
function checkPersonEmojiSupport(unicodeSupportMap, emojiUnicode) {
const isPersonZwjResult = isPersonZwjEmoji(emojiUnicode);
- return (
- (unicodeSupportMap.personZwj && isPersonZwjResult) ||
- !isPersonZwjResult
- );
+ return (unicodeSupportMap.personZwj && isPersonZwjResult) || !isPersonZwjResult;
}
// Takes in a support map and determines whether
@@ -111,16 +112,20 @@ function checkPersonEmojiSupport(unicodeSupportMap, emojiUnicode) {
//
// Combines all the edge case tests into a one-stop shop method
function isEmojiUnicodeSupported(unicodeSupportMap = {}, emojiUnicode, unicodeVersion) {
- const isOlderThanChrome57 = unicodeSupportMap.meta && unicodeSupportMap.meta.isChrome &&
+ const isOlderThanChrome57 =
+ unicodeSupportMap.meta &&
+ unicodeSupportMap.meta.isChrome &&
unicodeSupportMap.meta.chromeVersion < 57;
// For comments about each scenario, see the comments above each individual respective function
- return unicodeSupportMap[unicodeVersion] &&
+ return (
+ unicodeSupportMap[unicodeVersion] &&
!(isOlderThanChrome57 && isKeycapEmoji(emojiUnicode)) &&
checkFlagEmojiSupport(unicodeSupportMap, emojiUnicode) &&
checkSkinToneModifierSupport(unicodeSupportMap, emojiUnicode) &&
checkHorseRacingSkinToneComboEmojiSupport(unicodeSupportMap, emojiUnicode) &&
- checkPersonEmojiSupport(unicodeSupportMap, emojiUnicode);
+ checkPersonEmojiSupport(unicodeSupportMap, emojiUnicode)
+ );
}
export {