56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
ISOTerminal.addEventListener('emulator-started', function(e){
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this.autorestore(e)
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})
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ISOTerminal.prototype.convert = {
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arrayBufferToBase64: function(buffer){
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let binary = '';
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const bytes = new Uint8Array(buffer);
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const len = bytes.byteLength;
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for (let i = 0; i < len; i++) binary += String.fromCharCode(bytes[i]);
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return window.btoa(binary);
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},
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base64ToArrayBuffer: function(base64) {
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const binaryString = window.atob(base64);
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const len = binaryString.length;
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const bytes = new Uint8Array(len);
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for (let i = 0; i < len; i++) {
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bytes[i] = binaryString.charCodeAt(i);
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}
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return bytes.buffer;
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}
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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", (err,stateBase64) => {
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if( !err && confirm('continue last session?') ){
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this.noboot = true // see feat/boot.js
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state = this.convert.base64ToArrayBuffer( stateBase64 )
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this.emulator.restore_state(state)
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this.emit('postReady',e)
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setTimeout( () => {
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this.emit('ready',e)
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this.send("alert last session restored\n")
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}, 500 )
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}
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})
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this.save = async () => {
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const state = await this.emulator.save_state()
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console.log( String(this.convert.arrayBufferToBase64(state)).substr(0,5) )
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localforage.setItem("state", this.convert.arrayBufferToBase64(state) )
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}
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})
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}
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