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[Glitch] Improve rendering of emoji which do not contrast with background

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Port db319c0fdc to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>
This commit is contained in:
ThibG 2020-06-09 10:28:23 +02:00 committed by Thibaut Girka
parent 4657c1a1ca
commit 304721edc1
3 changed files with 16 additions and 7 deletions
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10
app/javascript/flavours/glitch/styles/accessibility.scss
View file

@ -1,13 +1,13 @@
$emojis-requiring-outlines: '8ball' 'ant' 'back' 'black_circle' 'black_heart' 'black_large_square' 'black_medium_small_square' 'black_medium_square' 'black_nib' 'black_small_square' 'bomb' 'bowling' 'bust_in_silhouette' 'busts_in_silhouette' 'camera' 'camera_with_flash' 'clubs' 'copyright' 'curly_loop' 'currency_exchange' 'dark_sunglasses' 'eight_pointed_black_star' 'electric_plug' 'end' 'female-guard' 'film_projector' 'fried_egg' 'gorilla' 'guardsman' 'heavy_check_mark' 'heavy_division_sign' 'heavy_dollar_sign' 'heavy_minus_sign' 'heavy_multiplication_x' 'heavy_plus_sign' 'hocho' 'hole' 'joystick' 'kaaba' 'lower_left_ballpoint_pen' 'lower_left_fountain_pen' 'male-guard' 'microphone' 'mortar_board' 'movie_camera' 'musical_score' 'on' 'registered' 'soon' 'spades' 'speaking_head_in_silhouette' 'spider' 'telephone_receiver' 'tm' 'top' 'tophat' 'turkey' 'vhs' 'video_camera' 'video_game' 'water_buffalo' 'waving_black_flag' 'wavy_dash' !default;
$emojis-requiring-inversion: 'back' 'copyright' 'curly_loop' 'currency_exchange' 'end' 'heavy_check_mark' 'heavy_division_sign' 'heavy_dollar_sign' 'heavy_minus_sign' 'heavy_multiplication_x' 'heavy_plus_sign' 'on' 'registered' 'soon' 'spider' 'telephone_receiver' 'tm' 'top' 'wavy_dash' !default;
%emoji-outline {
filter: drop-shadow(1px 1px 0 $primary-text-color) drop-shadow(-1px 1px 0 $primary-text-color) drop-shadow(1px -1px 0 $primary-text-color) drop-shadow(-1px -1px 0 $primary-text-color);
%emoji-color-inversion {
filter: invert(1);
}
.emojione {
@each $emoji in $emojis-requiring-outlines {
@each $emoji in $emojis-requiring-inversion {
&[title=':#{$emoji}:'] {
@extend %emoji-outline;
@extend %emoji-color-inversion;
}
}
}

2
app/javascript/flavours/glitch/styles/mastodon-light/variables.scss
View file

@ -37,4 +37,4 @@ $account-background-color: $white !default;
@return hsl(hue($color), saturation($color), lightness($color) - $amount);
}
$emojis-requiring-outlines: 'alien' 'baseball' 'chains' 'chicken' 'cloud' 'crescent_moon' 'dash' 'dove_of_peace' 'eyes' 'first_quarter_moon' 'first_quarter_moon_with_face' 'fish_cake' 'full_moon' 'full_moon_with_face' 'ghost' 'goat' 'grey_exclamation' 'grey_question' 'ice_skate' 'last_quarter_moon' 'last_quarter_moon_with_face' 'lightning' 'loud_sound' 'moon' 'mute' 'page_with_curl' 'rain_cloud' 'ram' 'rice' 'rice_ball' 'rooster' 'sheep' 'skull' 'skull_and_crossbones' 'snow_cloud' 'sound' 'speaker' 'speech_balloon' 'thought_balloon' 'volleyball' 'waning_crescent_moon' 'waning_gibbous_moon' 'waving_white_flag' 'waxing_crescent_moon' 'white_circle' 'white_large_square' 'white_medium_small_square' 'white_medium_square' 'white_small_square' 'wind_blowing_face';
$emojis-requiring-inversion: 'chains';

11
app/javascript/flavours/glitch/util/emoji/index.js
View file

@ -6,6 +6,15 @@ const trie = new Trie(Object.keys(unicodeMapping));
const assetHost = process.env.CDN_HOST || '';
// Emoji requiring extra borders depending on theme
const darkEmoji = '🎱🐜⚫🖤⬛◼️◾◼️✒️▪️💣🎳📷📸♣️🕶️✴️🔌💂‍♀️📽️🍳🦍💂🔪🕳️🕹️🕋🖊️🖋️💂‍♂️🎤🎓🎥🎼♠️🎩🦃📼📹🎮🐃🏴';
const lightEmoji = '👽⚾🐔☁️💨🕊️👀🍥👻🐐❕❔⛸️🌩️🔊🔇📃🌧️🐏🍚🍙🐓🐑💀☠️🌨️🔉🔈💬💭🏐🏳️⚪⬜◽◻️▫️';
const emojiFilename = (filename, match) => {
const borderedEmoji = document.body.classList.contains('skin-mastodon-light') ? lightEmoji : darkEmoji;
return borderedEmoji.includes(match) ? (filename + '_border') : filename;
};
const emojify = (str, customEmojis = {}) => {
const tagCharsWithoutEmojis = '<&';
const tagCharsWithEmojis = Object.keys(customEmojis).length ? '<&:' : '<&';
@ -60,7 +69,7 @@ const emojify = (str, customEmojis = {}) => {
} else if (!useSystemEmojiFont) { // matched to unicode emoji
const { filename, shortCode } = unicodeMapping[match];
const title = shortCode ? `:${shortCode}:` : '';
replacement = `<img draggable="false" class="emojione" alt="${match}" title="${title}" src="${assetHost}/emoji/${filename}.svg" />`;
replacement = `<img draggable="false" class="emojione" alt="${match}" title="${title}" src="${assetHost}/emoji/${emojiFilename(filename, match)}.svg" />`;
rend = i + match.length;
// If the matched character was followed by VS15 (for selecting text presentation), skip it.
if (str.codePointAt(rend) === 65038) {