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import Completion from '../../services/completion/completion.js'
import { take, filter, map } from 'lodash'
const AutoCompleteInput = {
props: [
'classObj',
'value',
'autoResize',
'drop',
'dragoverPrevent',
'paste',
'keydownMetaEnter',
'keyupCtrlEnter'
],
components: {},
mounted () {
this.autoResize && this.resize(this.$refs.textarea)
const textLength = this.$refs.textarea.value.length
this.$refs.textarea.setSelectionRange(textLength, textLength)
},
data () {
return {
caret: 0,
highlighted: 0,
text: this.value
}
},
computed: {
users () {
return this.$store.state.users.users
},
emoji () {
return this.$store.state.instance.emoji || []
},
customEmoji () {
return this.$store.state.instance.customEmoji || []
},
textAtCaret () {
return (this.wordAtCaret || {}).word || ''
},
wordAtCaret () {
const word = Completion.wordAtPosition(this.text, this.caret - 1) || {}
return word
},
candidates () {
const firstchar = this.textAtCaret.charAt(0)
if (firstchar === '@') {
const query = this.textAtCaret.slice(1).toUpperCase()
const matchedUsers = filter(this.users, (user) => {
return user.screen_name.toUpperCase().startsWith(query) ||
user.name && user.name.toUpperCase().startsWith(query)
})
if (matchedUsers.length <= 0) {
return false
}
// eslint-disable-next-line camelcase
return map(take(matchedUsers, 5), ({screen_name, name, profile_image_url_original}, index) => ({
// eslint-disable-next-line camelcase
screen_name: `@${screen_name}`,
name: name,
img: profile_image_url_original,
highlighted: index === this.highlighted
}))
} else if (firstchar === ':') {
if (this.textAtCaret === ':') { return }
const matchedEmoji = filter(this.emoji.concat(this.customEmoji), (emoji) => emoji.shortcode.startsWith(this.textAtCaret.slice(1)))
if (matchedEmoji.length <= 0) {
return false
}
return map(take(matchedEmoji, 5), ({shortcode, image_url, utf}, index) => ({
screen_name: `:${shortcode}:`,
name: '',
utf: utf || '',
// eslint-disable-next-line camelcase
img: utf ? '' : this.$store.state.instance.server + image_url,
highlighted: index === this.highlighted
}))
} else {
return false
}
}
},
methods: {
setCaret ({target: {selectionStart}}) {
this.caret = selectionStart
},
cycleBackward (e) {
const len = this.candidates.length || 0
if (len > 0) {
e.preventDefault()
this.highlighted -= 1
if (this.highlighted < 0) {
this.highlighted = this.candidates.length - 1
}
} else {
this.highlighted = 0
}
},
cycleForward (e) {
const len = this.candidates.length || 0
if (len > 0) {
if (e.shiftKey) { return }
e.preventDefault()
this.highlighted += 1
if (this.highlighted >= len) {
this.highlighted = 0
}
} else {
this.highlighted = 0
}
},
replace (replacement) {
this.text = Completion.replaceWord(this.text, this.wordAtCaret, replacement)
const el = this.$el.querySelector('textarea')
el.focus()
this.caret = 0
},
replaceCandidate (e) {
const len = this.candidates.length || 0
if (this.textAtCaret === ':' || e.ctrlKey) { return }
if (len > 0) {
e.preventDefault()
const candidate = this.candidates[this.highlighted]
const replacement = candidate.utf || (candidate.screen_name + ' ')
this.text = Completion.replaceWord(this.text, this.wordAtCaret, replacement)
const el = this.$el.querySelector('textarea')
el.focus()
this.caret = 0
this.highlighted = 0
}
},
resize (e) {
const target = e.target || e
if (!(target instanceof window.Element)) { return }
const vertPadding = Number(window.getComputedStyle(target)['padding-top'].substr(0, 1)) +
Number(window.getComputedStyle(target)['padding-bottom'].substr(0, 1))
// Auto is needed to make textbox shrink when removing lines
target.style.height = 'auto'
target.style.height = `${target.scrollHeight - vertPadding}px`
if (target.value === '') {
target.style.height = null
}
}
}
}
export default AutoCompleteInput
|
