mirror of
https://github.com/libretro/RetroArch
synced 2025-01-29 00:32:49 +00:00
320 lines
8.3 KiB
JavaScript
320 lines
8.3 KiB
JavaScript
/**
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* RetroArch Web Player
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*
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* This provides the basic JavaScript for the RetroArch web player.
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*/
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var BrowserFS = BrowserFS;
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var afs;
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var initializationCount = 0;
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function cleanupStorage()
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{
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localStorage.clear();
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if (BrowserFS.FileSystem.IndexedDB.isAvailable())
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{
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var req = indexedDB.deleteDatabase("RetroArch");
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req.onsuccess = function () {
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console.log("Deleted database successfully");
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};
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req.onerror = function () {
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console.log("Couldn't delete database");
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};
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req.onblocked = function () {
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console.log("Couldn't delete database due to the operation being blocked");
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};
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}
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document.getElementById("btnClean").disabled = true;
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}
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function idbfsInit()
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{
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$('#icnLocal').removeClass('fa-globe');
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$('#icnLocal').addClass('fa-spinner fa-spin');
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var imfs = new BrowserFS.FileSystem.InMemory();
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if (BrowserFS.FileSystem.IndexedDB.isAvailable())
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{
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afs = new BrowserFS.FileSystem.AsyncMirror(imfs,
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new BrowserFS.FileSystem.IndexedDB(function(e, fs)
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{
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if (e)
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{
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//fallback to imfs
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afs = new BrowserFS.FileSystem.InMemory();
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console.log("WEBPLAYER: error: " + e + " falling back to in-memory filesystem");
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setupFileSystem("browser");
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appInitialized();
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}
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else
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{
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// initialize afs by copying files from async storage to sync storage.
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afs.initialize(function (e)
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{
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if (e)
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{
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afs = new BrowserFS.FileSystem.InMemory();
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console.log("WEBPLAYER: error: " + e + " falling back to in-memory filesystem");
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setupFileSystem("browser");
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appInitialized();
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}
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else
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{
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idbfsSyncComplete();
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}
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});
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}
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},
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"RetroArch"));
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}
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}
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function idbfsSyncComplete()
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{
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$('#icnLocal').removeClass('fa-spinner').removeClass('fa-spin');
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$('#icnLocal').addClass('fa-check');
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console.log("WEBPLAYER: idbfs setup successful");
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setupFileSystem("browser");
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appInitialized();
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}
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function appInitialized()
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{
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/* Need to wait for both the file system and the wasm runtime
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to complete before enabling the Run button. */
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initializationCount++;
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if (initializationCount == 2)
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{
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preLoadingComplete();
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}
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}
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function preLoadingComplete()
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{
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/* Make the Preview image clickable to start RetroArch. */
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$('.webplayer-preview').addClass('loaded').click(function () {
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startRetroArch();
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return false;
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});
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document.getElementById("btnRun").disabled = false;
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$('#btnRun').removeClass('disabled');
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}
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function setupFileSystem(backend)
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{
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/* create a mountable filesystem that will server as a root
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mountpoint for browserfs */
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var mfs = new BrowserFS.FileSystem.MountableFileSystem();
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/* create an XmlHttpRequest filesystem for the bundled data */
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var xfs1 = new BrowserFS.FileSystem.XmlHttpRequest
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(".index-xhr", "assets/frontend/bundle/");
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/* create an XmlHttpRequest filesystem for core assets */
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var xfs2 = new BrowserFS.FileSystem.XmlHttpRequest
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(".index-xhr", "assets/cores/");
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console.log("WEBPLAYER: initializing filesystem: " + backend);
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mfs.mount('/home/web_user/retroarch/userdata', afs);
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mfs.mount('/home/web_user/retroarch/bundle', xfs1);
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mfs.mount('/home/web_user/retroarch/userdata/content/downloads', xfs2);
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BrowserFS.initialize(mfs);
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var BFS = new BrowserFS.EmscriptenFS();
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FS.mount(BFS, {root: '/home'}, '/home');
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console.log("WEBPLAYER: " + backend + " filesystem initialization successful");
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}
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/**
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* Retrieve the value of the given GET parameter.
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*/
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function getParam(name) {
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var results = new RegExp('[?&]' + name + '=([^&#]*)').exec(window.location.href);
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if (results) {
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return results[1] || null;
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}
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}
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function startRetroArch()
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{
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$('.webplayer').show();
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$('.webplayer-preview').hide();
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document.getElementById("btnRun").disabled = true;
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$('#btnFullscreen').removeClass('disabled');
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$('#btnMenu').removeClass('disabled');
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$('#btnAdd').removeClass('disabled');
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$('#btnRom').removeClass('disabled');
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document.getElementById("btnAdd").disabled = false;
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document.getElementById("btnRom").disabled = false;
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document.getElementById("btnMenu").disabled = false;
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document.getElementById("btnFullscreen").disabled = false;
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Module['callMain'](Module['arguments']);
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Module['resumeMainLoop']();
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document.getElementById('canvas').focus();
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}
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function selectFiles(files)
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{
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$('#btnAdd').addClass('disabled');
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$('#icnAdd').removeClass('fa-plus');
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$('#icnAdd').addClass('fa-spinner spinning');
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var count = files.length;
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for (var i = 0; i < count; i++)
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{
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filereader = new FileReader();
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filereader.file_name = files[i].name;
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filereader.readAsArrayBuffer(files[i]);
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filereader.onload = function(){uploadData(this.result, this.file_name)};
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filereader.onloadend = function(evt)
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{
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console.log("WEBPLAYER: file: " + this.file_name + " upload complete");
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if (evt.target.readyState == FileReader.DONE)
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{
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$('#btnAdd').removeClass('disabled');
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$('#icnAdd').removeClass('fa-spinner spinning');
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$('#icnAdd').addClass('fa-plus');
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}
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}
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}
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}
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function uploadData(data,name)
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{
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var dataView = new Uint8Array(data);
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FS.createDataFile('/', name, dataView, true, false);
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var data = FS.readFile(name,{ encoding: 'binary' });
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FS.writeFile('/home/web_user/retroarch/userdata/content/' + name, data ,{ encoding: 'binary' });
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FS.unlink(name);
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}
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var Module =
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{
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noInitialRun: true,
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arguments: ["-v", "--menu"],
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preRun: [],
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postRun: [],
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onRuntimeInitialized: function()
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{
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appInitialized();
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},
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print: function(text)
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{
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console.log(text);
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},
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printErr: function(text)
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{
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console.log(text);
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},
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canvas: document.getElementById('canvas'),
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totalDependencies: 0,
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monitorRunDependencies: function(left)
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{
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this.totalDependencies = Math.max(this.totalDependencies, left);
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}
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};
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function switchCore(corename) {
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localStorage.setItem("core", corename);
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}
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function switchStorage(backend) {
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if (backend != localStorage.getItem("backend"))
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{
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localStorage.setItem("backend", backend);
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location.reload();
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}
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}
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// When the browser has loaded everything.
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$(function() {
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// Enable all available ToolTips.
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$('.tooltip-enable').tooltip({
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placement: 'right'
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});
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// Allow hiding the top menu.
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$('.showMenu').hide();
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$('#btnHideMenu, .showMenu').click(function () {
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$('nav').slideToggle('slow');
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$('.showMenu').toggle('slow');
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});
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/**
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* Attempt to disable some default browser keys.
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*/
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var keys = {
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9: "tab",
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13: "enter",
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16: "shift",
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18: "alt",
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27: "esc",
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33: "rePag",
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34: "avPag",
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35: "end",
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36: "home",
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37: "left",
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38: "up",
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39: "right",
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40: "down",
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112: "F1",
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113: "F2",
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114: "F3",
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115: "F4",
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116: "F5",
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117: "F6",
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118: "F7",
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119: "F8",
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120: "F9",
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121: "F10",
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122: "F11",
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123: "F12"
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};
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window.addEventListener('keydown', function (e) {
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if (keys[e.which]) {
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e.preventDefault();
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}
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});
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// Switch the core when selecting one.
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$('#core-selector a').click(function () {
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var coreChoice = $(this).data('core');
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switchCore(coreChoice);
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});
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// Find which core to load.
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var core = localStorage.getItem("core", core);
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if (!core) {
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core = 'gambatte';
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}
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// Make the core the selected core in the UI.
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var coreTitle = $('#core-selector a[data-core="' + core + '"]').addClass('active').text();
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$('#dropdownMenu1').text(coreTitle);
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// Load the Core's related JavaScript.
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$.getScript(core + '_libretro.js', function ()
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{
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$('#icnRun').removeClass('fa-spinner').removeClass('fa-spin');
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$('#icnRun').addClass('fa-play');
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$('#lblDrop').removeClass('active');
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$('#lblLocal').addClass('active');
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idbfsInit();
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});
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});
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function keyPress(k)
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{
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kp(k, "keydown");
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setTimeout(function(){kp(k, "keyup")}, 50);
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}
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kp = function(k, event) {
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var oEvent = new KeyboardEvent(event, { code: k });
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document.dispatchEvent(oEvent);
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document.getElementById('canvas').focus();
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}
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