57 lines
2.1 KiB
JavaScript
57 lines
2.1 KiB
JavaScript
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const MIN_PREFIX_LENGTH = 1
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const ACCOUNT_SEARCH_REGEX = new RegExp(`(?:\\s|^)(@\\S{${MIN_PREFIX_LENGTH},})$`)
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const EMOJI_SEARCH_REGEX = new RegExp(`(?:\\s|^)(:[^:]{${MIN_PREFIX_LENGTH},})$`)
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function computeForAutosuggest (store, key, defaultValue) {
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store.compute(key,
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['currentInstance', 'currentComposeRealm', `autosuggestData_${key}`],
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(currentInstance, currentComposeRealm, root) => {
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let instanceData = root && root[currentInstance]
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return (currentComposeRealm && instanceData && currentComposeRealm in instanceData) ? instanceData[currentComposeRealm] : defaultValue
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})
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}
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export function autosuggestComputations (store) {
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computeForAutosuggest(store, 'composeFocused', false)
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computeForAutosuggest(store, 'composeSelectionStart', 0)
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computeForAutosuggest(store, 'autosuggestSelected', 0)
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computeForAutosuggest(store, 'autosuggestSearchResults', [])
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computeForAutosuggest(store, 'autosuggestType', null)
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store.compute(
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'currentComposeText',
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['currentComposeData', 'currentComposeRealm'],
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(currentComposeData, currentComposeRealm) => (
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currentComposeData[currentComposeRealm] && currentComposeData[currentComposeRealm].text) || ''
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)
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store.compute(
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'autosuggestSearchText',
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['currentComposeText', 'composeSelectionStart'],
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(currentComposeText, composeSelectionStart) => {
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let selectionStart = composeSelectionStart
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if (!currentComposeText || selectionStart < MIN_PREFIX_LENGTH) {
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return ''
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}
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let textUpToCursor = currentComposeText.substring(0, selectionStart)
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let match = textUpToCursor.match(ACCOUNT_SEARCH_REGEX) || textUpToCursor.match(EMOJI_SEARCH_REGEX)
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return (match && match[1]) || ''
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}
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)
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store.compute(
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'autosuggestNumSearchResults',
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['autosuggestSearchResults'],
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(autosuggestSearchResults) => autosuggestSearchResults.length
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)
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store.compute(
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'autosuggestShown',
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['composeFocused', 'autosuggestSearchText', 'autosuggestNumSearchResults'],
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(composeFocused, autosuggestSearchText, autosuggestNumSearchResults) => (
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!!(composeFocused && autosuggestSearchText && autosuggestNumSearchResults)
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)
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)
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}
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