pinafore/routes/_components/NavItem.html
2018-09-01 13:24:02 -07:00

226 lines
5.5 KiB
HTML

<a class='main-nav-link {selected ? "selected" : ""}'
aria-label={ariaLabel}
aria-current={selected}
on:click="onClick(event)"
{href} >
<div class="nav-icon-and-label">
{#if name === 'notifications'}
<div class="nav-link-svg-wrapper">
<svg class="nav-link-svg">
<use xlink:href={svg} />
</svg>
{#if $hasNotifications}
<span class="nav-link-notifications nav-link-notifications-digits-{notificationDigits}" aria-hidden="true">
{$numberOfNotifications}
</span>
{/if}
</div>
{:else}
<svg class="nav-link-svg">
<use xlink:href={svg} />
</svg>
{/if}
<span class="nav-link-label">{label}</span>
</div>
<div class="nav-indicator"
nav-indicator-key={name}
ref:indicator
></div>
</a>
<style>
.main-nav-link {
text-decoration: none;
display: flex;
justify-content: center;
align-items: center;
flex: 1;
flex-direction: column;
}
.nav-icon-and-label {
padding: 15px 20px;
display: flex;
justify-content: center;
align-items: center;
flex: 1;
}
.nav-link-svg-wrapper {
position: relative;
display: inline-block;
}
.nav-link-svg-wrapper, .nav-link-svg {
width: 20px;
height: 20px;
}
.nav-link-notifications {
position: absolute;
display: flex;
align-items: center;
justify-content: center;
top: 0;
right: 0;
bottom: 0;
left: 0;
transform: translate(10px, 7px);
z-index: 10;
border: 1px solid var(--nav-bg);
background: var(--nav-svg-fill);
color: var(--nav-bg);
border-radius: 100%;
font-size: 0.8em;
margin: 0 0 3px;
font-weight: 600;
}
.nav-link-notifications-digits-2, .nav-link-notifications-digits-3 {
font-size: 0.7em;
}
.main-nav-link.selected {
background: var(--nav-a-selected-bg);
}
.main-nav-link.selected:hover {
background: var(--nav-a-selected-bg-hover);
}
.nav-indicator {
width: 100%;
height: 1px;
background: var(--nav-a-border);
transform-origin: left;
}
.nav-indicator.animate {
transition: transform 333ms ease-in-out;
}
.main-nav-link:hover .nav-indicator {
background: var(--nav-a-border-hover);
}
.main-nav-link.selected .nav-indicator {
background: var(--nav-a-selected-border);
}
.main-nav-link.selected:hover .nav-indicator {
background: var(--nav-a-selected-border-hover);
}
.main-nav-link:hover {
background-color: var(--nav-a-bg-hover);
text-decoration: none;
}
.main-nav-link:hover .nav-link-label {
color: var(--nav-text-color-hover);
}
.main-nav-link:hover .nav-link-svg {
fill: var(--nav-svg-fill-hover);
}
.nav-link-svg {
display: inline-block;
fill: var(--nav-svg-fill);
}
.nav-link-label {
font-size: 16px;
color: var(--nav-text-color);
padding-left: 10px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
@media (max-width: 991px) {
.main-nav-link .nav-link-label {
display: none;
}
.nav-link-svg-wrapper, .nav-link-svg {
width: 25px;
height: 25px;
}
.nav-icon-and-label {
padding: 20px 0;
}
.nav-link-notifications {
transform: translate(15px, 7px);
margin: 2px 1px 4px;
}
}
</style>
<script>
import { store } from '../_store/store'
import { smoothScrollToTop } from '../_utils/smoothScrollToTop'
import { on, emit } from '../_utils/eventBus'
import { mark, stop } from '../_utils/marks'
import { doubleRAF } from '../_utils/doubleRAF'
export default {
oncreate () {
let { name } = this.get()
let indicator = this.refs.indicator
on('animateNavPart1', this, ({ fromPage, toPage }) => {
if (fromPage !== name) {
return
}
mark('animateNavPart1 gBCR')
let fromRect = indicator.getBoundingClientRect()
stop('animateNavPart1 gBCR')
emit('animateNavPart2', { fromRect, fromPage, toPage })
})
on('animateNavPart2', this, ({ fromPage, fromRect, toPage }) => {
if (toPage !== name) {
return
}
mark('animateNavPart2 gBCR')
let toRect = indicator.getBoundingClientRect()
stop('animateNavPart2 gBCR')
let translateX = fromRect.left - toRect.left
let scaleX = fromRect.width / toRect.width
indicator.style.transform = `translateX(${translateX}px) scaleX(${scaleX})`
let onTransitionEnd = () => {
indicator.removeEventListener('transitionend', onTransitionEnd)
indicator.classList.remove('animate')
}
indicator.addEventListener('transitionend', onTransitionEnd)
doubleRAF(() => {
indicator.classList.add('animate')
indicator.style.transform = ''
})
})
},
store: () => store,
computed: {
selected: ({ page, name }) => page === name,
ariaLabel: ({ selected, name, label, $numberOfNotifications }) => {
let res = label
if (selected) {
res += ' (current page)'
}
if (name === 'notifications' && $numberOfNotifications) {
res += ` (${$numberOfNotifications})`
}
return res
},
notificationDigits: ({ $numberOfNotifications }) => (
$numberOfNotifications.toString().length
)
},
methods: {
onClick (e) {
let { selected } = this.get()
if (!selected) {
return
}
e.preventDefault()
e.stopPropagation()
smoothScrollToTop(document.getElementsByClassName('container')[0])
}
}
}
</script>