81 lines
2.6 KiB
JavaScript
81 lines
2.6 KiB
JavaScript
if( typeof emulator != 'undefined' ){
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// inside worker-thread
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importScripts("localforage.js") // we don't instance it again here (just use its functions)
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this.restore_state = async function(data){
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return new Promise( (resolve,reject) => {
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localforage.getItem("state", async (err,stateBase64) => {
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if( stateBase64 && !err ){
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state = ISOTerminal.prototype.convert.base64ToArrayBuffer( stateBase64 )
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await emulator.restore_state(state)
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console.log("restored state")
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}else return reject("worker.js: emulator.restore_state (could not get state from localforage)")
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resolve()
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})
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})
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}
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this.save_state = async function(){
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console.log("saving session")
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let state = await emulator.save_state()
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localforage.setDriver([
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localforage.INDEXEDDB,
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localforage.WEBSQL,
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localforage.LOCALSTORAGE
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]).then( () => {
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localforage.setItem("state", ISOTerminal.prototype.convert.arrayBufferToBase64(state) )
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console.log("state saved")
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})
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}
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}else{
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// inside browser-thread
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ISOTerminal.addEventListener('emulator-started', function(e){
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this.autorestore(e)
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})
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ISOTerminal.prototype.autorestore = async function(e){
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localforage.setDriver([
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localforage.INDEXEDDB,
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localforage.WEBSQL,
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localforage.LOCALSTORAGE
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]).then( () => {
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localforage.getItem("state", async (err,stateBase64) => {
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const askConfirm = () => {
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if( window.localStorage.getItem("restorestate") == "true" ) return true
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try{
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const scene = document.querySelector('a-scene');
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if( scene.is('ar-mode') ) scene.exitAR()
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if( scene.is('vr-mode') ) scene.exitVR()
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}catch(e){}
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return confirm('continue last session?')
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}
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if( stateBase64 && !err && document.location.hash.length < 2 && askConfirm() ){
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this.noboot = true // see feat/boot.js
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try{
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await this.worker.restore_state()
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// simulate / fastforward boot events
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this.postBoot( () => {
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this.send("l\n")
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this.send("hook wakeup\n")
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})
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}catch(e){ console.error(e) }
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}
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})
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this.save = async () => {
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await this.worker.save_state()
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}
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window.addEventListener("beforeunload", function (e) {
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var confirmationMessage = "Sure you want to leave?\nTIP: enter 'save' to continue this session later";
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(e || window.event).returnValue = confirmationMessage; //Gecko + IE
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return confirmationMessage; //Webkit, Safari, Chrome
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});
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})
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}
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}
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