pinafore/routes/_components/compose/ComposeInput.html

201 lines
6.0 KiB
HTML

<textarea
class="compose-box-input"
placeholder="What's on your mind?"
ref:textarea
bind:value=rawText
on:blur="onBlur()"
on:focus="onFocus()"
on:selectionChange="onSelectionChange(event)"
on:keydown="onKeydown(event)"
></textarea>
<style>
.compose-box-input {
grid-area: input;
margin: 10px 0 0 5px;
padding: 10px;
border: 1px solid var(--input-border);
min-height: 75px;
resize: none;
overflow: hidden;
word-wrap: break-word;
/* Text must be at least 16px or else iOS Safari zooms in */
font-size: 1.2em;
/* Hack to make Edge stretch the element all the way to the right.
* Also desktop Safari makes the gauge stretch too far to the right without it.
*/
width: calc(100% - 5px);
}
</style>
<script>
import { store } from '../../_store/store'
import { autosize } from '../../_thirdparty/autosize/autosize'
import { scheduleIdleTask } from '../../_utils/scheduleIdleTask'
import debounce from 'lodash-es/debounce'
import { mark, stop } from '../../_utils/marks'
import { selectionChange } from '../../_utils/events'
import {
clickSelectedAutosuggestionUsername,
clickSelectedAutosuggestionEmoji
} from '../../_actions/autosuggest'
import { observe } from 'svelte-extras'
export default {
oncreate () {
this.setupSyncFromStore()
this.setupSyncToStore()
this.setupAutosize()
},
ondestroy () {
this.teardownAutosize()
},
methods: {
observe,
setupSyncFromStore () {
let textarea = this.refs.textarea
let firstTime = true
this.observe('text', text => {
let { rawText } = this.get()
if (rawText !== text) {
this.set({ rawText: text })
// this next autosize is required to resize after
// the user clicks the "toot" button
mark('autosize.update()')
autosize.update(textarea)
stop('autosize.update()')
}
if (firstTime) {
firstTime = false
let { autoFocus } = this.get()
if (autoFocus) {
requestAnimationFrame(() => textarea.focus())
}
}
})
},
setupSyncToStore () {
const saveStore = debounce(() => scheduleIdleTask(() => this.store.save()), 1000)
this.observe('rawText', rawText => {
mark('observe rawText')
let { realm } = this.get()
this.store.setComposeData(realm, { text: rawText })
saveStore()
stop('observe rawText')
}, { init: false })
},
setupAutosize () {
let textarea = this.refs.textarea
requestAnimationFrame(() => {
mark('autosize()')
autosize(textarea)
stop('autosize()')
})
},
teardownAutosize () {
mark('autosize.destroy()')
autosize.destroy(this.refs.textarea)
stop('autosize.destroy()')
},
onBlur () {
scheduleIdleTask(() => {
this.store.setForCurrentAutosuggest({ composeFocused: false })
})
},
onFocus () {
scheduleIdleTask(() => {
let { realm } = this.get()
this.store.set({ currentComposeRealm: realm })
this.store.setForCurrentAutosuggest({ composeFocused: true })
})
},
onSelectionChange (selectionStart) {
scheduleIdleTask(() => {
this.store.setForCurrentAutosuggest({ composeSelectionStart: selectionStart })
})
},
onKeydown (e) {
let { keyCode } = e
// ctrl or cmd (on macs) was pressed; ctrl-enter means post a toot
const ctrlPressed = e.getModifierState('Control') || e.getModifierState('Meta')
switch (keyCode) {
case 9: // tab
this.clickSelectedAutosuggestion(e)
break
case 13: // enter
const autosuggestionClicked = this.clickSelectedAutosuggestion(e)
if (!autosuggestionClicked && ctrlPressed) {
this.fire('postAction')
}
break
case 38: // up
this.incrementAutosuggestSelected(-1, e)
break
case 40: // down
this.incrementAutosuggestSelected(1, e)
break
case 27: // escape
this.clearAutosuggestions(e)
break
default:
}
},
clickSelectedAutosuggestion (event) {
let {
autosuggestShown,
autosuggestType
} = this.store.get()
if (!autosuggestShown) {
return false
}
let { realm } = this.get()
if (autosuggestType === 'account') {
/* no await */ clickSelectedAutosuggestionUsername(realm)
} else { // emoji
/* no await */ clickSelectedAutosuggestionEmoji(realm)
}
event.preventDefault()
event.stopPropagation()
return true
},
incrementAutosuggestSelected (increment, event) {
let {
autosuggestShown,
autosuggestSelected,
autosuggestSearchResults
} = this.store.get()
if (!autosuggestShown) {
return
}
autosuggestSelected += increment
if (autosuggestSelected >= 0) {
autosuggestSelected = autosuggestSelected % autosuggestSearchResults.length
} else {
autosuggestSelected = autosuggestSearchResults.length + autosuggestSelected
}
this.store.setForCurrentAutosuggest({ autosuggestSelected })
event.preventDefault()
event.stopPropagation()
},
clearAutosuggestions (event) {
let { autosuggestShown } = this.store.get()
if (!autosuggestShown) {
return
}
this.store.setForCurrentAutosuggest({
autosuggestSearchResults: [],
autosuggestSelected: 0
})
event.preventDefault()
event.stopPropagation()
}
},
store: () => store,
data: () => ({
rawText: ''
}),
events: {
selectionChange
}
}
</script>