xrsh-com/com/isoterminal/feat/autorestore.js

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if( typeof emulator != 'undefined' ){
// inside worker-thread
this['emulator.restore_state'] = async function(data){
await emulator.restore_state(data)
console.log("restored state")
this.postMessage({event:"state_restored",data:false})
}
this['emulator.save_state'] = async function(){
console.log("saving session")
let state = await emulator.save_state()
this.postMessage({event:"state_saved",data:state},[state])
}
}else{
// inside browser-thread
ISOTerminal.addEventListener('emulator-started', function(e){
this.autorestore(e)
})
ISOTerminal.prototype.autorestore = async function(e){
localforage.setDriver([
localforage.INDEXEDDB,
localforage.WEBSQL,
localforage.LOCALSTORAGE
]).then( () => {
localforage.getItem("state", async (err,stateBase64) => {
if( stateBase64 && !err && confirm('continue last session?') ){
this.noboot = true // see feat/boot.js
state = this.convert.base64ToArrayBuffer( stateBase64 )
this.addEventListener('state_restored', function(){
// simulate / fastforward boot events
this.postBoot( () => {
this.send("l\n")
this.send("hook wakeup\n")
})
})
this.worker.postMessage({event:'emulator.restore_state',data:state})
}
})
this.save = async () => {
const state = await this.worker.postMessage({event:"emulator.save_state",data:false})
}
this.addEventListener('state_saved', function(e){
const state = e.detail
localforage.setItem("state", this.convert.arrayBufferToBase64(state) )
console.log("state saved")
})
window.addEventListener("beforeunload", function (e) {
var confirmationMessage = "Sure you want to leave?\nTIP: enter 'save' to continue this session later";
(e || window.event).returnValue = confirmationMessage; //Gecko + IE
return confirmationMessage; //Webkit, Safari, Chrome
});
})
}
}