add dynamic favicon

This commit is contained in:
Nolan Lawson 2018-02-16 08:59:44 -08:00
parent f45d1d53fb
commit 9d576b7c1a
8 changed files with 60 additions and 16 deletions

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assets/favicon-alert.png Normal file

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@ -7,9 +7,9 @@
<svg>
<use xlink:href="{{svg}}" />
</svg>
{{#if numberOfNotifications}}
{{#if $hasNotifications}}
<span class="nav-link-notifications" aria-hidden="true">
{{numberOfNotifications}}
{{$numberOfNotifications}}
</span>
{{/if}}
</div>
@ -115,23 +115,15 @@
export default {
store: () => store,
computed: {
ariaLabel: (page, name, label, numberOfNotifications) => {
ariaLabel: (page, name, label, $numberOfNotifications) => {
let res = label
if (page === name) {
res += ' (current page)'
}
if (name === 'notifications') {
res += ` (${numberOfNotifications})`
res += ` (${$numberOfNotifications})`
}
return res
},
numberOfNotifications: ($timelines, $currentInstance, $currentTimeline) => {
return $currentTimeline !== 'notifications' &&
$timelines &&
$timelines[$currentInstance] &&
$timelines[$currentInstance].notifications &&
$timelines[$currentInstance].notifications.itemIdsToAdd &&
$timelines[$currentInstance].notifications.itemIdsToAdd.length
}
}
}

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@ -76,4 +76,23 @@ export function instanceComputations (store) {
return list ? list.title : ''
}
)
store.compute('numberOfNotifications',
['timelines', 'currentInstance', 'currentTimeline'],
(timelines, currentInstance, currentTimeline) => {
return currentTimeline !== 'notifications' &&
timelines &&
timelines[currentInstance] &&
timelines[currentInstance].notifications &&
timelines[currentInstance].notifications.itemIdsToAdd &&
timelines[currentInstance].notifications.itemIdsToAdd.length
}
)
store.compute('hasNotifications',
['numberOfNotifications'],
(numberOfNotifications) => {
return !!numberOfNotifications
}
)
}

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@ -0,0 +1,17 @@
import { setFavicon } from '../_utils/setFavicon'
import { scheduleIdleTask } from '../_utils/scheduleIdleTask'
export function notificationObservers (store) {
store.observe('hasNotifications', hasNotifications => {
if (!process.browser) {
return
}
scheduleIdleTask(() => {
if (hasNotifications) {
setFavicon('/favicon-alert.png')
} else {
setFavicon('/favicon.png')
}
})
})
}

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@ -1,7 +1,9 @@
import { instanceObservers } from './instanceObservers'
import { timelineObservers } from './timelineObservers'
import { notificationObservers } from './notificationObservers'
export function observers (store) {
instanceObservers(store)
timelineObservers(store)
notificationObservers(store)
}

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@ -0,0 +1,14 @@
// borrowed from https://github.com/HenrikJoreteg/favicon-setter
export function setFavicon (href) {
let faviconId = 'theFavicon'
let link = document.createElement('link')
let oldLink = document.getElementById(faviconId)
link.id = faviconId
link.rel = 'shortcut icon'
link.type = 'image/png'
link.href = href
if (oldLink) {
document.head.removeChild(oldLink)
}
document.head.appendChild(link)
}

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@ -1,6 +1,6 @@
import { loadCSS } from 'fg-loadcss'
let meta = process.browser && document.querySelector('meta[name="theme-color"]')
let meta = process.browser && document.getElementById('theThemeColor')
export function switchToTheme (themeName) {
let clazzList = document.body.classList

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@ -3,10 +3,10 @@
<head>
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name='theme-color' content='#4169e1'>
<meta id='theThemeColor' name='theme-color' content='#4169e1'>
<link rel='manifest' href='/manifest.json'>
<link rel='icon' type='image/png' href='/favicon.png'>
<link id='theFavicon' rel='icon' type='image/png' href='/favicon.png'>
<style>
/* auto-generated w/ build-sass.js */
@ -56,7 +56,7 @@ body.offline,body.theme-hotpants.offline,body.theme-majesty.offline,body.theme-o
link.href = `/theme-${theme}.css`
document.head.appendChild(link)
if (window.__themeColors[theme]) {
document.querySelector('meta[name="theme-color"]').content = window.__themeColors[theme]
document.getElementById('theThemeColor').content = window.__themeColors[theme]
}
}
}