SkirdaElectronLauncher/app/assets/js/scripts/landing.js
Daniel Scalzi 0cc861f614
Overhauling file system structure.
Common files such as assets, libraries, and mods have been externalized into a 'common' folder. Each server now has its own instance folder to allow saving per version files. This resolves issues with resourcepacks and mod configurations being overriden, and still preserves our optimizations in storing libraries and mods maven style.
2018-06-04 00:17:20 -04:00

987 lines
34 KiB
JavaScript

/**
* Script for landing.ejs
*/
// Requirements
const cp = require('child_process')
const {URL} = require('url')
// Internal Requirements
const DiscordWrapper = require('./assets/js/discordwrapper.js')
const Mojang = require('./assets/js/mojang.js')
const ProcessBuilder = require('./assets/js/processbuilder.js')
const ServerStatus = require('./assets/js/serverstatus.js')
// 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')
// News Elements
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 newsArticleContent = document.getElementById('newsArticleContentScrollable')
const newsErrorContainer = document.getElementById('newsErrorContainer')
const nELoadSpan = document.getElementById('nELoadSpan')
/* 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 selected account
function updateSelectedAccount(authUser){
let username = 'No Account Selected'
if(authUser != null && authUser.username != null){
username = authUser.displayName
}
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
}
// Real text is set in uibinder.js on distributionIndexDone.
updateSelectedServer('Loading..')
server_selection_button.addEventListener('click', (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 = AssetGuard.getServerById(ConfigManager.getSelectedServer())
let pLabel = 'SERVER'
let pVal = 'OFFLINE'
try {
const serverURL = new URL('my://' + serv.server_ip)
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.getLauncherDirectory(),
ConfigManager.getJavaExecutable(),
ConfigManager.getInstanceDirectory()
], {
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.content === '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: 0, content: '_enqueueOracleJRE', argsArr: [ConfigManager.getLauncherDirectory()]})
toggleOverlay(false)
})
setDismissHandler(() => {
$('#overlayContent').fadeOut(250, () => {
//$('#overlayDismiss').toggle(false)
setOverlayContent(
'Don\'t Forget!<br>Java is Required',
'A valid x64 installation of Java 8 is required to launch. Downloads can be found on <a href="http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html">Oracle\'s website</a>. Once installed, you will be able to connect to the server.<br><br>Please refer to our <a href="http://westeroscraft.wikia.com/wiki/Troubleshooting_Guide">Troubleshooting Guide</a> if you have any difficulty.',
'I Understand',
'Go Back'
)
setOverlayHandler(() => {
toggleLaunchArea(false)
toggleOverlay(false)
})
setDismissHandler(() => {
toggleOverlay(false, true)
asyncSystemScan()
})
$('#overlayContent').fadeIn(250)
})
})
toggleOverlay(true, true)
// TODO Add option to not install Java x64.
} else {
// Java installation found, use this to launch the game.
ConfigManager.setJavaExecutable(m.result)
ConfigManager.save()
if(launchAfter){
dlAsync()
}
sysAEx.disconnect()
}
} else if(m.content === '_enqueueOracleJRE'){
if(m.result === true){
// Oracle JRE enqueued successfully, begin download.
setLaunchDetails('Downloading Java..')
sysAEx.send({task: 0, content: '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.content === 'dl'){
if(m.task === 0){
// Downloading..
setDownloadPercentage(m.value, m.total, m.percent)
} else if(m.task === 1){
// Download will be at 100%, remove the loading from the OS progress bar.
remote.getCurrentWindow().setProgressBar(-1)
// 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)
} else if(m.task === 2){
// Extraction completed successfully.
ConfigManager.setJavaExecutable(m.jPath)
ConfigManager.save()
if(extractListener != null){
clearInterval(extractListener)
extractListener = null
}
setLaunchDetails('Java Installed!')
if(launchAfter){
dlAsync()
}
sysAEx.disconnect()
} else {
console.error('Unknown download data type.', m)
}
}
})
// Begin system Java scan.
setLaunchDetails('Checking system info..')
sysAEx.send({task: 0, content: 'validateJava', argsArr: [ConfigManager.getLauncherDirectory()]})
}
// Keep reference to Minecraft Process
let proc
// Is DiscordRPC enabled
let hasRPC = false
// Joined server regex
const servJoined = /[[0-2][0-9]:[0-6][0-9]:[0-6][0-9]\] \[Client thread\/INFO\]: \[CHAT\] [a-zA-Z0-9_]{1,16} joined the game/g
const gameJoined = /\[[0-2][0-9]:[0-6][0-9]:[0-6][0-9]\] \[Client thread\/WARN\]: Skipping bad option: lastServer:/g
const gameJoined2 = /\[[0-2][0-9]:[0-6][0-9]:[0-6][0-9]\] \[Client thread\/INFO\]: Created: \d+x\d+ textures-atlas/g
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.getLauncherDirectory(),
ConfigManager.getJavaExecutable(),
ConfigManager.getInstanceDirectory()
], {
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.content === 'validateDistribution'){
setLaunchPercentage(20, 100)
serv = m.result
console.log('Validated distibution index.')
// Begin version load.
setLaunchDetails('Loading version information..')
aEx.send({task: 0, content: 'loadVersionData', argsArr: [serv.mc_version]})
} else if(m.content === 'loadVersionData'){
setLaunchPercentage(40, 100)
versionData = m.result
console.log('Version data loaded.')
// Begin asset validation.
setLaunchDetails('Validating asset integrity..')
aEx.send({task: 0, content: 'validateAssets', argsArr: [versionData]})
} else if(m.content === 'validateAssets'){
// Asset validation can *potentially* take longer, so let's track progress.
if(m.task === 0){
const perc = (m.value/m.total)*20
setLaunchPercentage(40+perc, 100, parseInt(40+perc))
} else {
setLaunchPercentage(60, 100)
console.log('Asset Validation Complete')
// Begin library validation.
setLaunchDetails('Validating library integrity..')
aEx.send({task: 0, content: 'validateLibraries', argsArr: [versionData]})
}
} else if(m.content === 'validateLibraries'){
setLaunchPercentage(80, 100)
console.log('Library validation complete.')
// Begin miscellaneous validation.
setLaunchDetails('Validating miscellaneous file integrity..')
aEx.send({task: 0, content: 'validateMiscellaneous', argsArr: [versionData]})
} else if(m.content === 'validateMiscellaneous'){
setLaunchPercentage(100, 100)
console.log('File validation complete.')
// Download queued files.
setLaunchDetails('Downloading files..')
aEx.send({task: 0, content: 'processDlQueues'})
} else if(m.content === 'dl'){
if(m.task === 0){
setDownloadPercentage(m.value, m.total, m.percent)
} else if(m.task === 0.7){
// Download done, extracting.
const eLStr = 'Extracting libraries'
let dotStr = ''
setLaunchDetails(eLStr)
progressListener = setInterval(() => {
if(dotStr.length >= 3){
dotStr = ''
} else {
dotStr += '.'
}
setLaunchDetails(eLStr + dotStr)
}, 750)
} else if(m.task === 0.9) {
console.error(m.err)
if(m.err.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)
}
toggleOverlay(true)
toggleLaunchArea(false)
// Disconnect from AssetExec
aEx.disconnect()
} else if(m.task === 1){
// Download will be at 100%, remove the loading from the OS progress bar.
remote.getCurrentWindow().setProgressBar(-1)
if(progressListener != null){
clearInterval(progressListener)
progressListener = null
}
setLaunchDetails('Preparing to launch..')
aEx.send({task: 0, content: 'loadForgeData', argsArr: [serv.id]})
} else {
console.error('Unknown download data type.', m)
}
} else if(m.content === 'loadForgeData'){
forgeData = m.result
if(login) {
//if(!(await AuthManager.validateSelected())){
//
//}
const authUser = ConfigManager.getSelectedAccount()
console.log('authu', authUser)
let pb = new ProcessBuilder(serv, versionData, forgeData, authUser)
setLaunchDetails('Launching game..')
try {
// Build Minecraft process.
proc = pb.build()
setLaunchDetails('Done. Enjoy the server!')
// 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(data.indexOf('[Client thread/INFO]: -- System Details --') > -1){
toggleLaunchArea(false)
if(hasRPC){
DiscordWrapper.updateDetails('Loading game..')
}
proc.stdout.removeListener('data', tempListener)
}
}
// Listener for Discord RPC.
const gameStateChange = function(data){
if(servJoined.test(data)){
DiscordWrapper.updateDetails('Exploring the Realm!')
} else if(gameJoined.test(data)){
DiscordWrapper.updateDetails('Idling on Main Menu')
}
}
// Bind listeners to stdout.
proc.stdout.on('data', tempListener)
proc.stdout.on('data', gameStateChange)
// Init Discord Hook
const distro = AssetGuard.getDistributionData()
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..')
if(AssetGuard.isLocalLaunch()){
refreshDistributionIndex(false, (data) => {
onDistroRefresh(data)
aEx.send({task: 0, content: 'validateDistribution', argsArr: [ConfigManager.getSelectedServer()]})
}, (err) => {
console.error('Unable to refresh distribution index.', err)
if(AssetGuard.getDistributionData() == 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 {
aEx.send({task: 0, content: 'validateDistribution', argsArr: [ConfigManager.getSelectedServer()]})
}
})
} else {
refreshDistributionIndex(true, (data) => {
onDistroRefresh(data)
aEx.send({task: 0, content: 'validateDistribution', argsArr: [ConfigManager.getSelectedServer()]})
}, (err) => {
refreshDistributionIndex(false, (data) => {
onDistroRefresh(data)
}, (err) => {
console.error('Unable to refresh distribution index.', err)
if(AssetGuard.getDistributionData() == 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 {
aEx.send({task: 0, content: 'validateDistribution', argsArr: [ConfigManager.getSelectedServer()]})
}
})
})
}
}
/**
* News Loading Functions
*/
// 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')
}
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)
})
}
/**
* 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()
})
})
})
}
/**
* 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)
$('#newsErrorLoading').fadeOut(250, () => {
$('#newsErrorNone').fadeIn(250, () => {
resolve()
})
})
} else {
// Success
setNewsLoading(false)
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()
})
})
}
})
})
}
/**
* 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
newsArticleContent.innerHTML = articleObject.content + '<div class="newsArticleSpacer"></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 = AssetGuard.getDistributionData()
const newsFeed = distroData['news_feed']
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
})
})
})
}