EmojiInput refactoring Closes #565 See merge request pleroma/pleroma-fe!824skip-thread-containment
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/**
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* suggest - generates a suggestor function to be used by emoji-input
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* data: object providing source information for specific types of suggestions:
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* data.emoji - optional, an array of all emoji available i.e.
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* (state.instance.emoji + state.instance.customEmoji)
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* data.users - optional, an array of all known users
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*
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* Depending on data present one or both (or none) can be present, so if field
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* doesn't support user linking you can just provide only emoji.
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*/
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export default data => input => {
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const firstChar = input[0]
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if (firstChar === ':' && data.emoji) {
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return suggestEmoji(data.emoji)(input)
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}
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if (firstChar === '@' && data.users) {
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return suggestUsers(data.users)(input)
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}
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return []
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}
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export const suggestEmoji = emojis => input => {
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const noPrefix = input.toLowerCase().substr(1)
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return emojis
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.filter(({ displayText }) => displayText.toLowerCase().startsWith(noPrefix))
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.sort((a, b) => {
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let aScore = 0
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let bScore = 0
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// Make custom emojis a priority
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aScore += a.imageUrl ? 10 : 0
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bScore += b.imageUrl ? 10 : 0
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// Sort alphabetically
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const alphabetically = a.displayText > b.displayText ? 1 : -1
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return bScore - aScore + alphabetically
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})
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}
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export const suggestUsers = users => input => {
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const noPrefix = input.toLowerCase().substr(1)
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return users.filter(
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user =>
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user.screen_name.toLowerCase().startsWith(noPrefix) ||
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user.name.toLowerCase().startsWith(noPrefix)
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/* taking only 20 results so that sorting is a bit cheaper, we display
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* only 5 anyway. could be inaccurate, but we ideally we should query
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* backend anyway
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*/
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).slice(0, 20).sort((a, b) => {
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let aScore = 0
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let bScore = 0
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// Matches on screen name (i.e. user@instance) makes a priority
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aScore += a.screen_name.toLowerCase().startsWith(noPrefix) ? 2 : 0
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bScore += b.screen_name.toLowerCase().startsWith(noPrefix) ? 2 : 0
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// Matches on name takes second priority
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aScore += a.name.toLowerCase().startsWith(noPrefix) ? 1 : 0
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bScore += b.name.toLowerCase().startsWith(noPrefix) ? 1 : 0
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const diff = (bScore - aScore) * 10
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// Then sort alphabetically
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const nameAlphabetically = a.name > b.name ? 1 : -1
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const screenNameAlphabetically = a.screen_name > b.screen_name ? 1 : -1
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return diff + nameAlphabetically + screenNameAlphabetically
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/* eslint-disable camelcase */
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}).map(({ screen_name, name, profile_image_url_original }) => ({
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displayText: screen_name,
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detailText: name,
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imageUrl: profile_image_url_original,
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replacement: '@' + screen_name + ' '
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}))
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/* eslint-enable camelcase */
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}
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