pinafore/routes/_components/compose/ComposeInput.html

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<textarea
class="compose-box-input"
placeholder="What's on your mind?"
ref:textarea
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bind:value=rawText
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on:blur="onBlur()"
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on:focus="onFocus()"
on:selectionChange="onSelectionChange(event)"
on:keydown="onKeydown(event)"
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></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 '../../_utils/autosize'
import { scheduleIdleTask } from '../../_utils/scheduleIdleTask'
import debounce from 'lodash-es/debounce'
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import { mark, stop } from '../../_utils/marks'
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import { selectionChange } from '../../_utils/events'
import { clickSelectedAutosuggestionUsername } from '../../_actions/compose'
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import { clickSelectedAutosuggestionEmoji } from '../../_actions/emoji'
import { observe } from 'svelte-extras'
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export default {
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oncreate () {
this.setupSyncFromStore()
this.setupSyncToStore()
this.setupAutosize()
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},
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ondestroy () {
this.teardownAutosize()
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},
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methods: {
observe,
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setupSyncFromStore () {
let textarea = this.refs.textarea
let firstTime = true
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this.observe('text', text => {
let { rawText } = this.get()
if (rawText !== text) {
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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) {
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requestAnimationFrame(() => textarea.focus())
}
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}
})
},
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setupSyncToStore () {
const saveStore = debounce(() => scheduleIdleTask(() => this.store.save()), 1000)
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this.observe('rawText', rawText => {
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mark('observe rawText')
let { realm } = this.get()
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this.store.setComposeData(realm, {text: rawText})
saveStore()
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stop('observe rawText')
}, {init: false})
},
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setupAutosize () {
let textarea = this.refs.textarea
requestAnimationFrame(() => {
mark('autosize()')
autosize(textarea)
stop('autosize()')
})
},
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teardownAutosize () {
mark('autosize.destroy()')
autosize.destroy(this.refs.textarea)
stop('autosize.destroy()')
},
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onBlur () {
this.store.set({composeFocused: null})
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},
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onFocus () {
let { realm } = this.get()
this.store.set({composeFocused: realm})
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},
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onSelectionChange (selectionStart) {
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this.store.set({composeSelectionStart: selectionStart})
},
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onKeydown (e) {
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let { keyCode } = e
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// ctrl or cmd (on macs) was pressed; ctrl-enter means post a toot
const ctrlPressed = e.getModifierState('Control') || e.getModifierState('Meta')
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switch (keyCode) {
case 9: // tab
this.clickSelectedAutosuggestion(e)
break
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case 13: // enter
const autosuggestionClicked = this.clickSelectedAutosuggestion(e)
if (!autosuggestionClicked && ctrlPressed) {
this.fire('postAction')
}
break
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case 38: // up
this.incrementAutosuggestSelected(-1, e)
break
case 40: // down
this.incrementAutosuggestSelected(1, e)
break
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case 27: // escape
this.clearAutosuggestions(e)
break
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default:
}
},
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clickSelectedAutosuggestion (event) {
let {
composeAutosuggestionShown,
composeAutosuggestionType
} = this.store.get()
if (!composeAutosuggestionShown) {
return false
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}
let { realm } = this.get()
if (composeAutosuggestionType === 'account') {
/* no await */ clickSelectedAutosuggestionUsername(realm)
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} else { // emoji
/* no await */ clickSelectedAutosuggestionEmoji(realm)
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}
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event.preventDefault()
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event.stopPropagation()
return true
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},
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incrementAutosuggestSelected (increment, event) {
let {
composeAutosuggestionShown,
composeAutosuggestionSelected,
composeAutosuggestionSearchResults
} = this.store.get()
if (!composeAutosuggestionShown) {
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return
}
let selected = composeAutosuggestionSelected || 0
let searchResults = composeAutosuggestionSearchResults || []
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selected += increment
if (selected >= 0) {
selected = selected % searchResults.length
} else {
selected = searchResults.length + selected
}
this.store.set({composeAutosuggestionSelected: selected})
event.preventDefault()
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event.stopPropagation()
},
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clearAutosuggestions (event) {
let { composeAutosuggestionShown } = this.store.get()
if (!composeAutosuggestionShown) {
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return
}
this.store.set({
composeAutosuggestionSearchResults: [],
composeAutosuggestionSelected: 0
})
event.preventDefault()
event.stopPropagation()
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}
},
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store: () => store,
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data: () => ({
rawText: ''
}),
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events: {
selectionChange
}
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}
</script>