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

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ISOTerminal.addEventListener('emulator-started', function(e){
this.autorestore(e)
})
ISOTerminal.prototype.autorestore = async function(e){
localforage.setDriver([
localforage.INDEXEDDB,
localforage.WEBSQL,
localforage.LOCALSTORAGE
]).then( () => {
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localforage.getItem("state", async (err,stateBase64) => {
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if( stateBase64 && !err && confirm('continue last session?') ){
this.noboot = true // see feat/boot.js
state = this.convert.base64ToArrayBuffer( stateBase64 )
this.emulator.restore_state(state)
this.emit('postReady',e)
setTimeout( () => {
this.emit('ready',e)
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// press CTRL+a l (=gnu screen redisplay)
setTimeout( () => this.send("l\n"),400 )
// reload index.js
this.emulator.read_file("root/index.js")
.then( this.convert.Uint8ArrayToString )
.then( this.runJavascript )
.catch( console.error )
// reload index.html
this.emulator.read_file("root/index.html")
.then( this.convert.Uint8ArrayToString )
.then( this.runHTML )
.catch( console.error )
}, 500 )
}
})
this.save = async () => {
const state = await this.emulator.save_state()
console.log( String(this.convert.arrayBufferToBase64(state)).substr(0,5) )
localforage.setItem("state", this.convert.arrayBufferToBase64(state) )
}
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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
});
})
}