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import { debounce } from 'lodash'
import { library } from '@fortawesome/fontawesome-svg-core'
import {
faPen
} from '@fortawesome/free-solid-svg-icons'
library.add(
faPen
)
const HIDDEN_FOR_PAGES = new Set([
'chats',
'chat',
'lists-edit'
])
const MobilePostStatusButton = {
data () {
return {
hidden: false,
scrollingDown: false,
inputActive: false,
oldScrollPos: 0,
amountScrolled: 0
}
},
created () {
if (this.autohideFloatingPostButton) {
this.activateFloatingPostButtonAutohide()
}
window.addEventListener('resize', this.handleOSK)
},
unmounted () {
if (this.autohideFloatingPostButton) {
this.deactivateFloatingPostButtonAutohide()
}
window.removeEventListener('resize', this.handleOSK)
},
computed: {
isLoggedIn () {
return !!this.$store.state.users.currentUser
},
isHidden () {
if (HIDDEN_FOR_PAGES.has(this.$route.name)) { return true }
return this.autohideFloatingPostButton && (this.hidden || this.inputActive)
},
isPersistent () {
return !!this.$store.getters.mergedConfig.alwaysShowNewPostButton
},
autohideFloatingPostButton () {
return !!this.$store.getters.mergedConfig.autohideFloatingPostButton
}
},
watch: {
autohideFloatingPostButton: function (isEnabled) {
if (isEnabled) {
this.activateFloatingPostButtonAutohide()
} else {
this.deactivateFloatingPostButtonAutohide()
}
}
},
methods: {
activateFloatingPostButtonAutohide () {
window.addEventListener('scroll', this.handleScrollStart)
window.addEventListener('scroll', this.handleScrollEnd)
},
deactivateFloatingPostButtonAutohide () {
window.removeEventListener('scroll', this.handleScrollStart)
window.removeEventListener('scroll', this.handleScrollEnd)
},
openPostForm () {
this.$store.dispatch('openPostStatusModal')
},
handleOSK () {
// This is a big hack: we're guessing from changed window sizes if the
// on-screen keyboard is active or not. This is only really important
// for phones in portrait mode and it's more important to show the button
// in normal scenarios on all phones, than it is to hide it when the
// keyboard is active.
// Guesswork based on https://www.mydevice.io/#compare-devices
// for example, iphone 4 and android phones from the same time period
const smallPhone = window.innerWidth < 350
const smallPhoneKbOpen = smallPhone && window.innerHeight < 345
const biggerPhone = !smallPhone && window.innerWidth < 450
const biggerPhoneKbOpen = biggerPhone && window.innerHeight < 560
if (smallPhoneKbOpen || biggerPhoneKbOpen) {
this.inputActive = true
} else {
this.inputActive = false
}
},
handleScrollStart: debounce(function () {
if (window.scrollY > this.oldScrollPos) {
this.hidden = true
} else {
this.hidden = false
}
this.oldScrollPos = window.scrollY
}, 100, { leading: true, trailing: false }),
handleScrollEnd: debounce(function () {
this.hidden = false
this.oldScrollPos = window.scrollY
}, 100, { leading: false, trailing: true })
}
}
export default MobilePostStatusButton
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