SkirdaElectronLauncher/app/assets/js/scripts/landing.js
Daniel Scalzi 37606dc8d2
Improvements to overlay keybinds.
Added dynamic keybinder for overlays. If dismissable, the Escape key will dismiss the overlay. If not dismissable, Enter & Escape will trigger the main button.
If the selected account is not valid and you have more than one other account, you may cancel logging in to return to the original error overlay.
Updated electron-builder@20.28.2.
Fixed minor bug where the background of the settings UI was set to transparent. This occurred if the validation error overlay was shown on the settings UI, and you chose the login option.
2018-08-22 10:54:09 -04:00

1088 lines
39 KiB
JavaScript

/**
* Script for landing.ejs
*/
// Requirements
const cp = require('child_process')
const crypto = require('crypto')
const {URL} = require('url')
// Internal Requirements
const DiscordWrapper = require('./assets/js/discordwrapper')
const Mojang = require('./assets/js/mojang')
const ProcessBuilder = require('./assets/js/processbuilder')
const ServerStatus = require('./assets/js/serverstatus')
// Launch Elements
const launch_content = document.getElementById('launch_content')
const launch_details = document.getElementById('launch_details')
const launch_progress = document.getElementById('launch_progress')
const launch_progress_label = document.getElementById('launch_progress_label')
const launch_details_text = document.getElementById('launch_details_text')
const server_selection_button = document.getElementById('server_selection_button')
const user_text = document.getElementById('user_text')
/* Launch Progress Wrapper Functions */
/**
* Show/hide the loading area.
*
* @param {boolean} loading True if the loading area should be shown, otherwise false.
*/
function toggleLaunchArea(loading){
if(loading){
launch_details.style.display = 'flex'
launch_content.style.display = 'none'
} else {
launch_details.style.display = 'none'
launch_content.style.display = 'inline-flex'
}
}
/**
* Set the details text of the loading area.
*
* @param {string} details The new text for the loading details.
*/
function setLaunchDetails(details){
launch_details_text.innerHTML = details
}
/**
* Set the value of the loading progress bar and display that value.
*
* @param {number} value The progress value.
* @param {number} max The total size.
* @param {number|string} percent Optional. The percentage to display on the progress label.
*/
function setLaunchPercentage(value, max, percent = ((value/max)*100)){
launch_progress.setAttribute('max', max)
launch_progress.setAttribute('value', value)
launch_progress_label.innerHTML = percent + '%'
}
/**
* Set the value of the OS progress bar and display that on the UI.
*
* @param {number} value The progress value.
* @param {number} max The total download size.
* @param {number|string} percent Optional. The percentage to display on the progress label.
*/
function setDownloadPercentage(value, max, percent = ((value/max)*100)){
remote.getCurrentWindow().setProgressBar(value/max)
setLaunchPercentage(value, max, percent)
}
/**
* Enable or disable the launch button.
*
* @param {boolean} val True to enable, false to disable.
*/
function setLaunchEnabled(val){
document.getElementById('launch_button').disabled = !val
}
// Bind launch button
document.getElementById('launch_button').addEventListener('click', function(e){
console.log('Launching game..')
const jExe = ConfigManager.getJavaExecutable()
if(jExe == null){
asyncSystemScan()
} else {
setLaunchDetails('Please wait..')
toggleLaunchArea(true)
setLaunchPercentage(0, 100)
AssetGuard._validateJavaBinary(jExe).then((v) => {
console.log(v)
if(v.valid){
dlAsync()
} else {
asyncSystemScan()
}
})
}
})
// Bind settings button
document.getElementById('settingsMediaButton').onclick = (e) => {
prepareSettings()
switchView(getCurrentView(), VIEWS.settings)
}
// Bind avatar overlay button.
document.getElementById('avatarOverlay').onclick = (e) => {
prepareSettings()
switchView(getCurrentView(), VIEWS.settings, 500, 500, () => {
settingsNavItemListener(document.getElementById('settingsNavAccount'), false)
})
}
// Bind selected account
function updateSelectedAccount(authUser){
let username = 'No Account Selected'
if(authUser != null){
if(authUser.displayName != null){
username = authUser.displayName
}
if(authUser.uuid != null){
document.getElementById('avatarContainer').style.backgroundImage = `url('https://crafatar.com/renders/body/${authUser.uuid}')`
}
}
user_text.innerHTML = username
}
updateSelectedAccount(ConfigManager.getSelectedAccount())
// Bind selected server
function updateSelectedServer(serverName){
if(serverName == null){
serverName = 'No Server Selected'
}
server_selection_button.innerHTML = '\u2022 ' + serverName
if(getCurrentView() === VIEWS.settings){
animateModsTabRefresh()
}
}
// Real text is set in uibinder.js on distributionIndexDone.
updateSelectedServer('Loading..')
server_selection_button.onclick = (e) => {
e.target.blur()
toggleServerSelection(true)
}
// Update Mojang Status Color
const refreshMojangStatuses = async function(){
console.log('Refreshing Mojang Statuses..')
let status = 'grey'
let tooltipEssentialHTML = ''
let tooltipNonEssentialHTML = ''
try {
const statuses = await Mojang.status()
greenCount = 0
greyCount = 0
for(let i=0; i<statuses.length; i++){
const service = statuses[i]
if(service.essential){
tooltipEssentialHTML += `<div class="mojangStatusContainer">
<span class="mojangStatusIcon" style="color: ${Mojang.statusToHex(service.status)};">&#8226;</span>
<span class="mojangStatusName">${service.name}</span>
</div>`
} else {
tooltipNonEssentialHTML += `<div class="mojangStatusContainer">
<span class="mojangStatusIcon" style="color: ${Mojang.statusToHex(service.status)};">&#8226;</span>
<span class="mojangStatusName">${service.name}</span>
</div>`
}
if(service.status === 'yellow' && status !== 'red'){
status = 'yellow'
} else if(service.status === 'red'){
status = 'red'
} else {
if(service.status === 'grey'){
++greyCount
}
++greenCount
}
}
if(greenCount === statuses.length){
if(greyCount === statuses.length){
status = 'grey'
} else {
status = 'green'
}
}
} catch (err) {
console.warn('Unable to refresh Mojang service status.')
console.debug(err)
}
document.getElementById('mojangStatusEssentialContainer').innerHTML = tooltipEssentialHTML
document.getElementById('mojangStatusNonEssentialContainer').innerHTML = tooltipNonEssentialHTML
document.getElementById('mojang_status_icon').style.color = Mojang.statusToHex(status)
}
const refreshServerStatus = async function(fade = false){
console.log('Refreshing Server Status')
const serv = DistroManager.getDistribution().getServer(ConfigManager.getSelectedServer())
let pLabel = 'SERVER'
let pVal = 'OFFLINE'
try {
const serverURL = new URL('my://' + serv.getAddress())
const servStat = await ServerStatus.getStatus(serverURL.hostname, serverURL.port)
if(servStat.online){
pLabel = 'PLAYERS'
pVal = servStat.onlinePlayers + '/' + servStat.maxPlayers
}
} catch (err) {
console.warn('Unable to refresh server status, assuming offline.')
console.debug(err)
}
if(fade){
$('#server_status_wrapper').fadeOut(250, () => {
document.getElementById('landingPlayerLabel').innerHTML = pLabel
document.getElementById('player_count').innerHTML = pVal
$('#server_status_wrapper').fadeIn(500)
})
} else {
document.getElementById('landingPlayerLabel').innerHTML = pLabel
document.getElementById('player_count').innerHTML = pVal
}
}
refreshMojangStatuses()
// Server Status is refreshed in uibinder.js on distributionIndexDone.
// Set refresh rate to once every 5 minutes.
let mojangStatusListener = setInterval(() => refreshMojangStatuses(true), 300000)
let serverStatusListener = setInterval(() => refreshServerStatus(true), 300000)
/* System (Java) Scan */
let sysAEx
let scanAt
let extractListener
function asyncSystemScan(launchAfter = true){
setLaunchDetails('Please wait..')
toggleLaunchArea(true)
setLaunchPercentage(0, 100)
// Fork a process to run validations.
sysAEx = cp.fork(path.join(__dirname, 'assets', 'js', 'assetexec.js'), [
ConfigManager.getCommonDirectory(),
ConfigManager.getJavaExecutable()
], {
stdio: 'pipe'
})
// Stdout
sysAEx.stdio[1].on('data', (data) => {
console.log('%c[SysAEx]', 'color: #353232; font-weight: bold', data.toString('utf-8'))
})
// Stderr
sysAEx.stdio[2].on('data', (data) => {
console.log('%c[SysAEx]', 'color: #353232; font-weight: bold', data.toString('utf-8'))
})
sysAEx.on('message', (m) => {
if(m.context === 'validateJava'){
if(m.result == null){
// If the result is null, no valid Java installation was found.
// Show this information to the user.
setOverlayContent(
'No Compatible<br>Java Installation Found',
'In order to join WesterosCraft, you need a 64-bit installation of Java 8. Would you like us to install a copy? By installing, you accept <a href="http://www.oracle.com/technetwork/java/javase/terms/license/index.html">Oracle\'s license agreement</a>.',
'Install Java',
'Install Manually'
)
setOverlayHandler(() => {
setLaunchDetails('Preparing Java Download..')
sysAEx.send({task: 'execute', function: '_enqueueOracleJRE', argsArr: [ConfigManager.getLauncherDirectory()]})
toggleOverlay(false)
})
setDismissHandler(() => {
$('#overlayContent').fadeOut(250, () => {
//$('#overlayDismiss').toggle(false)
setOverlayContent(
'Java is Required<br>to Launch',
'A valid x64 installation of Java 8 is required to launch.<br><br>Please refer to our <a href="https://github.com/WesterosCraftCode/ElectronLauncher/wiki/Java-Management#manually-installing-a-valid-version-of-java">Java Management Guide</a> for instructions on how to manually install Java.',
'I Understand',
'Go Back'
)
setOverlayHandler(() => {
toggleLaunchArea(false)
toggleOverlay(false)
})
setDismissHandler(() => {
toggleOverlay(false, true)
asyncSystemScan()
})
$('#overlayContent').fadeIn(250)
})
})
toggleOverlay(true, true)
} else {
// Java installation found, use this to launch the game.
ConfigManager.setJavaExecutable(m.result)
ConfigManager.save()
// We need to make sure that the updated value is on the settings UI.
// Just incase the settings UI is already open.
settingsJavaExecVal.value = m.result
populateJavaExecDetails(settingsJavaExecVal.value)
if(launchAfter){
dlAsync()
}
sysAEx.disconnect()
}
} else if(m.context === '_enqueueOracleJRE'){
if(m.result === true){
// Oracle JRE enqueued successfully, begin download.
setLaunchDetails('Downloading Java..')
sysAEx.send({task: 'execute', function: 'processDlQueues', argsArr: [[{id:'java', limit:1}]]})
} else {
// Oracle JRE enqueue failed. Probably due to a change in their website format.
// User will have to follow the guide to install Java.
setOverlayContent(
'Unexpected Issue:<br>Java Download Failed',
'Unfortunately we\'ve encountered an issue while attempting to install Java. You will need to manually install a copy. Please check out our <a href="http://westeroscraft.wikia.com/wiki/Troubleshooting_Guide">Troubleshooting Guide</a> for more details and instructions.',
'I Understand'
)
setOverlayHandler(() => {
toggleOverlay(false)
toggleLaunchArea(false)
})
toggleOverlay(true)
sysAEx.disconnect()
}
} else if(m.context === 'progress'){
switch(m.data){
case 'download':
// Downloading..
setDownloadPercentage(m.value, m.total, m.percent)
break
}
} else if(m.context === 'complete'){
switch(m.data){
case 'download': {
// Show installing progress bar.
remote.getCurrentWindow().setProgressBar(2)
// Wait for extration to complete.
const eLStr = 'Extracting'
let dotStr = ''
setLaunchDetails(eLStr)
extractListener = setInterval(() => {
if(dotStr.length >= 3){
dotStr = ''
} else {
dotStr += '.'
}
setLaunchDetails(eLStr + dotStr)
}, 750)
break
}
case 'java':
// Download & extraction complete, remove the loading from the OS progress bar.
remote.getCurrentWindow().setProgressBar(-1)
// Extraction completed successfully.
ConfigManager.setJavaExecutable(m.args[0])
ConfigManager.save()
if(extractListener != null){
clearInterval(extractListener)
extractListener = null
}
setLaunchDetails('Java Installed!')
if(launchAfter){
dlAsync()
}
sysAEx.disconnect()
break
}
}
})
// Begin system Java scan.
setLaunchDetails('Checking system info..')
sysAEx.send({task: 'execute', function: 'validateJava', argsArr: [ConfigManager.getLauncherDirectory()]})
}
// Keep reference to Minecraft Process
let proc
// Is DiscordRPC enabled
let hasRPC = false
// Joined server regex
const SERVER_JOINED_REGEX = /\[.+\]: \[CHAT\] [a-zA-Z0-9_]{1,16} joined the game/
const GAME_JOINED_REGEX = /\[.+\]: Skipping bad option: lastServer:/
const GAME_LAUNCH_REGEX = /^\[.+\]: MinecraftForge .+ Initialized$/
let aEx
let serv
let versionData
let forgeData
let progressListener
function dlAsync(login = true){
// Login parameter is temporary for debug purposes. Allows testing the validation/downloads without
// launching the game.
if(login) {
if(ConfigManager.getSelectedAccount() == null){
console.error('login first.')
//in devtools AuthManager.addAccount(username, pass)
return
}
}
setLaunchDetails('Please wait..')
toggleLaunchArea(true)
setLaunchPercentage(0, 100)
// Start AssetExec to run validations and downloads in a forked process.
aEx = cp.fork(path.join(__dirname, 'assets', 'js', 'assetexec.js'), [
ConfigManager.getCommonDirectory(),
ConfigManager.getJavaExecutable()
], {
stdio: 'pipe'
})
// Stdout
aEx.stdio[1].on('data', (data) => {
console.log('%c[AEx]', 'color: #353232; font-weight: bold', data.toString('utf-8'))
})
// Stderr
aEx.stdio[2].on('data', (data) => {
console.log('%c[AEx]', 'color: #353232; font-weight: bold', data.toString('utf-8'))
})
// Establish communications between the AssetExec and current process.
aEx.on('message', (m) => {
if(m.context === 'validate'){
switch(m.data){
case 'distribution':
setLaunchPercentage(20, 100)
console.log('Validated distibution index.')
setLaunchDetails('Loading version information..')
break
case 'version':
setLaunchPercentage(40, 100)
console.log('Version data loaded.')
setLaunchDetails('Validating asset integrity..')
break
case 'assets':
setLaunchPercentage(60, 100)
console.log('Asset Validation Complete')
setLaunchDetails('Validating library integrity..')
break
case 'libraries':
setLaunchPercentage(80, 100)
console.log('Library validation complete.')
setLaunchDetails('Validating miscellaneous file integrity..')
break
case 'files':
setLaunchPercentage(100, 100)
console.log('File validation complete.')
setLaunchDetails('Downloading files..')
break
}
} else if(m.context === 'progress'){
switch(m.data){
case 'assets': {
const perc = (m.value/m.total)*20
setLaunchPercentage(40+perc, 100, parseInt(40+perc))
break
}
case 'download':
setDownloadPercentage(m.value, m.total, m.percent)
break
case 'extract': {
// Show installing progress bar.
remote.getCurrentWindow().setProgressBar(2)
// Download done, extracting.
const eLStr = 'Extracting libraries'
let dotStr = ''
setLaunchDetails(eLStr)
progressListener = setInterval(() => {
if(dotStr.length >= 3){
dotStr = ''
} else {
dotStr += '.'
}
setLaunchDetails(eLStr + dotStr)
}, 750)
break
}
}
} else if(m.context === 'complete'){
switch(m.data){
case 'download':
// Download and extraction complete, remove the loading from the OS progress bar.
remote.getCurrentWindow().setProgressBar(-1)
if(progressListener != null){
clearInterval(progressListener)
progressListener = null
}
setLaunchDetails('Preparing to launch..')
break
}
} else if(m.context === 'error'){
switch(m.data){
case 'download':
console.error(m.error)
if(m.error.code === 'ENOENT'){
setOverlayContent(
'Download Error',
'Could not connect to the file server. Ensure that you are connected to the internet and try again.',
'Okay'
)
setOverlayHandler(null)
} else {
setOverlayContent(
'Download Error',
'Check the console for more details. Please try again.',
'Okay'
)
setOverlayHandler(null)
}
remote.getCurrentWindow().setProgressBar(-1)
toggleOverlay(true)
toggleLaunchArea(false)
// Disconnect from AssetExec
aEx.disconnect()
break
}
} else if(m.context === 'validateEverything'){
// If these properties are not defined it's likely an error.
if(m.result.forgeData == null || m.result.versionData == null){
console.error(m.result)
}
forgeData = m.result.forgeData
versionData = m.result.versionData
if(login) {
const authUser = ConfigManager.getSelectedAccount()
console.log('authu', authUser)
let pb = new ProcessBuilder(serv, versionData, forgeData, authUser)
setLaunchDetails('Launching game..')
// Attach a temporary listener to the client output.
// Will wait for a certain bit of text meaning that
// the client application has started, and we can hide
// the progress bar stuff.
const tempListener = function(data){
if(GAME_LAUNCH_REGEX.test(data.trim())){
toggleLaunchArea(false)
if(hasRPC){
DiscordWrapper.updateDetails('Loading game..')
}
proc.stdout.on('data', gameStateChange)
proc.stdout.removeListener('data', tempListener)
proc.stderr.removeListener('data', gameErrorListener)
}
}
// Listener for Discord RPC.
const gameStateChange = function(data){
data = data.trim()
if(SERVER_JOINED_REGEX.test(data)){
DiscordWrapper.updateDetails('Exploring the Realm!')
} else if(GAME_JOINED_REGEX.test(data)){
DiscordWrapper.updateDetails('Sailing to Westeros!')
}
}
const gameErrorListener = function(data){
data = data.trim()
if(data.indexOf('Could not find or load main class net.minecraft.launchwrapper.Launch') > -1){
console.error('Game launch failed, LaunchWrapper was not downloaded properly.')
setOverlayContent(
'Error During Launch',
'The main file, LaunchWrapper, failed to download properly. As a result, the game cannot launch.<br><br>To fix this issue, temporarily turn off your antivirus software and launch the game again.<br><br>If you have time, please <a href="https://github.com/WesterosCraftCode/ElectronLauncher/issues">submit an issue</a> and let us know what antivirus software you use. We\'ll contact them and try to straighten things out.',
'Okay'
)
setOverlayHandler(null)
toggleOverlay(true)
toggleLaunchArea(false)
}
}
try {
// Build Minecraft process.
proc = pb.build()
// Bind listeners to stdout.
proc.stdout.on('data', tempListener)
proc.stderr.on('data', gameErrorListener)
setLaunchDetails('Done. Enjoy the server!')
// Init Discord Hook
const distro = DistroManager.getDistribution()
if(distro.discord != null && serv.discord != null){
DiscordWrapper.initRPC(distro.discord, serv.discord)
hasRPC = true
proc.on('close', (code, signal) => {
console.log('Shutting down Discord Rich Presence..')
DiscordWrapper.shutdownRPC()
hasRPC = false
proc = null
})
}
} catch(err) {
console.error('Error during launch', err)
setOverlayContent(
'Error During Launch',
'Please check the console for more details.',
'Okay'
)
setOverlayHandler(null)
toggleOverlay(true)
toggleLaunchArea(false)
}
}
// Disconnect from AssetExec
aEx.disconnect()
}
})
// Begin Validations
// Validate Forge files.
setLaunchDetails('Loading server information..')
refreshDistributionIndex(true, (data) => {
onDistroRefresh(data)
serv = data.getServer(ConfigManager.getSelectedServer())
aEx.send({task: 'execute', function: 'validateEverything', argsArr: [ConfigManager.getSelectedServer(), DistroManager.isDevMode()]})
}, (err) => {
console.log(err)
refreshDistributionIndex(false, (data) => {
onDistroRefresh(data)
serv = data.getServer(ConfigManager.getSelectedServer())
aEx.send({task: 'execute', function: 'validateEverything', argsArr: [ConfigManager.getSelectedServer(), DistroManager.isDevMode()]})
}, (err) => {
console.error('Unable to refresh distribution index.', err)
if(DistroManager.getDistribution() == null){
setOverlayContent(
'Fatal Error',
'Could not load a copy of the distribution index. See the console for more details.',
'Okay'
)
setOverlayHandler(null)
toggleOverlay(true)
toggleLaunchArea(false)
// Disconnect from AssetExec
aEx.disconnect()
} else {
serv = data.getServer(ConfigManager.getSelectedServer())
aEx.send({task: 'execute', function: 'validateEverything', argsArr: [ConfigManager.getSelectedServer(), DistroManager.isDevMode()]})
}
})
})
}
/**
* News Loading Functions
*/
// DOM Cache
const newsContent = document.getElementById('newsContent')
const newsArticleTitle = document.getElementById('newsArticleTitle')
const newsArticleDate = document.getElementById('newsArticleDate')
const newsArticleAuthor = document.getElementById('newsArticleAuthor')
const newsArticleComments = document.getElementById('newsArticleComments')
const newsNavigationStatus = document.getElementById('newsNavigationStatus')
const newsArticleContentScrollable = document.getElementById('newsArticleContentScrollable')
const nELoadSpan = document.getElementById('nELoadSpan')
// News slide caches.
let newsActive = false
let newsGlideCount = 0
/**
* Show the news UI via a slide animation.
*
* @param {boolean} up True to slide up, otherwise false.
*/
function slide_(up){
const lCUpper = document.querySelector('#landingContainer > #upper')
const lCLLeft = document.querySelector('#landingContainer > #lower > #left')
const lCLCenter = document.querySelector('#landingContainer > #lower > #center')
const lCLRight = document.querySelector('#landingContainer > #lower > #right')
const newsBtn = document.querySelector('#landingContainer > #lower > #center #content')
const landingContainer = document.getElementById('landingContainer')
const newsContainer = document.querySelector('#landingContainer > #newsContainer')
newsGlideCount++
if(up){
lCUpper.style.top = '-200vh'
lCLLeft.style.top = '-200vh'
lCLCenter.style.top = '-200vh'
lCLRight.style.top = '-200vh'
newsBtn.style.top = '130vh'
newsContainer.style.top = '0px'
//date.toLocaleDateString('en-US', {month: 'short', day: 'numeric', year: 'numeric', hour: 'numeric', minute: 'numeric'})
//landingContainer.style.background = 'rgba(29, 29, 29, 0.55)'
landingContainer.style.background = 'rgba(0, 0, 0, 0.50)'
setTimeout(() => {
if(newsGlideCount === 1){
lCLCenter.style.transition = 'none'
newsBtn.style.transition = 'none'
}
newsGlideCount--
}, 2000)
} else {
setTimeout(() => {
newsGlideCount--
}, 2000)
landingContainer.style.background = null
lCLCenter.style.transition = null
newsBtn.style.transition = null
newsContainer.style.top = '100%'
lCUpper.style.top = '0px'
lCLLeft.style.top = '0px'
lCLCenter.style.top = '0px'
lCLRight.style.top = '0px'
newsBtn.style.top = '10px'
}
}
// Bind news button.
document.getElementById('newsButton').onclick = () => {
// Toggle tabbing.
if(newsActive){
$('#landingContainer *').removeAttr('tabindex')
$('#newsContainer *').attr('tabindex', '-1')
} else {
$('#landingContainer *').attr('tabindex', '-1')
$('#newsContainer, #newsContainer *, #lower, #lower #center *').removeAttr('tabindex')
if(newsAlertShown){
$('#newsButtonAlert').fadeOut(2000)
newsAlertShown = false
ConfigManager.setNewsCacheDismissed(true)
ConfigManager.save()
}
}
slide_(!newsActive)
newsActive = !newsActive
}
// Array to store article meta.
let newsArr = null
// News load animation listener.
let newsLoadingListener = null
/**
* Set the news loading animation.
*
* @param {boolean} val True to set loading animation, otherwise false.
*/
function setNewsLoading(val){
if(val){
const nLStr = 'Checking for News'
let dotStr = '..'
nELoadSpan.innerHTML = nLStr + dotStr
newsLoadingListener = setInterval(() => {
if(dotStr.length >= 3){
dotStr = ''
} else {
dotStr += '.'
}
nELoadSpan.innerHTML = nLStr + dotStr
}, 750)
} else {
if(newsLoadingListener != null){
clearInterval(newsLoadingListener)
newsLoadingListener = null
}
}
}
// Bind retry button.
newsErrorRetry.onclick = () => {
$('#newsErrorFailed').fadeOut(250, () => {
initNews()
$('#newsErrorLoading').fadeIn(250)
})
}
newsArticleContentScrollable.onscroll = (e) => {
if(e.target.scrollTop > Number.parseFloat($('.newsArticleSpacerTop').css('height'))){
newsContent.setAttribute('scrolled', '')
} else {
newsContent.removeAttribute('scrolled')
}
}
/**
* Reload the news without restarting.
*
* @returns {Promise.<void>} A promise which resolves when the news
* content has finished loading and transitioning.
*/
function reloadNews(){
return new Promise((resolve, reject) => {
$('#newsContent').fadeOut(250, () => {
$('#newsErrorLoading').fadeIn(250)
initNews().then(() => {
resolve()
})
})
})
}
let newsAlertShown = false
/**
* Show the news alert indicating there is new news.
*/
function showNewsAlert(){
newsAlertShown = true
$(newsButtonAlert).fadeIn(250)
}
/**
* Initialize News UI. This will load the news and prepare
* the UI accordingly.
*
* @returns {Promise.<void>} A promise which resolves when the news
* content has finished loading and transitioning.
*/
function initNews(){
return new Promise((resolve, reject) => {
setNewsLoading(true)
let news = {}
loadNews().then(news => {
newsArr = news.articles || null
if(newsArr == null){
// News Loading Failed
setNewsLoading(false)
$('#newsErrorLoading').fadeOut(250, () => {
$('#newsErrorFailed').fadeIn(250, () => {
resolve()
})
})
} else if(newsArr.length === 0) {
// No News Articles
setNewsLoading(false)
ConfigManager.setNewsCache({
date: null,
content: null,
dismissed: false
})
ConfigManager.save()
$('#newsErrorLoading').fadeOut(250, () => {
$('#newsErrorNone').fadeIn(250, () => {
resolve()
})
})
} else {
// Success
setNewsLoading(false)
const lN = newsArr[0]
const cached = ConfigManager.getNewsCache()
let newHash = crypto.createHash('sha1').update(lN.content).digest('hex')
let newDate = new Date(lN.date)
let isNew = false
if(cached.date != null && cached.content != null){
if(new Date(cached.date) >= newDate){
// Compare Content
if(cached.content !== newHash){
isNew = true
showNewsAlert()
} else {
if(!cached.dismissed){
isNew = true
showNewsAlert()
}
}
} else {
isNew = true
showNewsAlert()
}
} else {
isNew = true
showNewsAlert()
}
if(isNew){
ConfigManager.setNewsCache({
date: newDate.getTime(),
content: newHash,
dismissed: false
})
ConfigManager.save()
}
const switchHandler = (forward) => {
let cArt = parseInt(newsContent.getAttribute('article'))
let nxtArt = forward ? (cArt >= newsArr.length-1 ? 0 : cArt + 1) : (cArt <= 0 ? newsArr.length-1 : cArt - 1)
displayArticle(newsArr[nxtArt], nxtArt+1)
}
document.getElementById('newsNavigateRight').onclick = () => { switchHandler(true) }
document.getElementById('newsNavigateLeft').onclick = () => { switchHandler(false) }
$('#newsErrorContainer').fadeOut(250, () => {
displayArticle(newsArr[0], 1)
$('#newsContent').fadeIn(250, () => {
resolve()
})
})
}
})
})
}
/**
* Add keyboard controls to the news UI. Left and right arrows toggle
* between articles. If you are on the landing page, the up arrow will
* open the news UI.
*/
document.addEventListener('keydown', (e) => {
if(newsActive){
if(e.key === 'ArrowRight' || e.key === 'ArrowLeft'){
document.getElementById(e.key === 'ArrowRight' ? 'newsNavigateRight' : 'newsNavigateLeft').click()
}
// Interferes with scrolling an article using the down arrow.
// Not sure of a straight forward solution at this point.
// if(e.key === 'ArrowDown'){
// document.getElementById('newsButton').click()
// }
} else {
if(getCurrentView() === VIEWS.landing){
if(e.key === 'ArrowUp'){
document.getElementById('newsButton').click()
}
}
}
})
/**
* Display a news article on the UI.
*
* @param {Object} articleObject The article meta object.
* @param {number} index The article index.
*/
function displayArticle(articleObject, index){
newsArticleTitle.innerHTML = articleObject.title
newsArticleTitle.href = articleObject.link
newsArticleAuthor.innerHTML = 'by ' + articleObject.author
newsArticleDate.innerHTML = articleObject.date
newsArticleComments.innerHTML = articleObject.comments
newsArticleComments.href = articleObject.commentsLink
newsArticleContentScrollable.innerHTML = '<div id="newsArticleContentWrapper"><div class="newsArticleSpacerTop"></div>' + articleObject.content + '<div class="newsArticleSpacerBot"></div></div>'
newsNavigationStatus.innerHTML = index + ' of ' + newsArr.length
newsContent.setAttribute('article', index-1)
}
/**
* Load news information from the RSS feed specified in the
* distribution index.
*/
function loadNews(){
return new Promise((resolve, reject) => {
const distroData = DistroManager.getDistribution()
const newsFeed = distroData.getRSS()
const newsHost = new URL(newsFeed).origin + '/'
$.ajax(
{
url: newsFeed,
success: (data) => {
const items = $(data).find('item')
const articles = []
for(let i=0; i<items.length; i++){
// JQuery Element
const el = $(items[i])
// Resolve date.
const date = new Date(el.find('pubDate').text()).toLocaleDateString('en-US', {month: 'short', day: 'numeric', year: 'numeric', hour: 'numeric', minute: 'numeric'})
// Resolve comments.
let comments = el.find('slash\\:comments').text() || '0'
comments = comments + ' Comment' + (comments === '1' ? '' : 's')
// Fix relative links in content.
let content = el.find('content\\:encoded').text()
let regex = /src="(?!http:\/\/|https:\/\/)(.+)"/g
let matches
while((matches = regex.exec(content))){
content = content.replace(matches[1], newsHost + matches[1])
}
let link = el.find('link').text()
let title = el.find('title').text()
let author = el.find('dc\\:creator').text()
// Generate article.
articles.push(
{
link,
title,
date,
author,
content,
comments,
commentsLink: link + '#comments'
}
)
}
resolve({
articles
})
},
timeout: 2500
}).catch(err => {
resolve({
articles: null
})
})
})
}