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main.js
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main.js
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import $ from "jquery";
import _ from "underscore";
import * as bootstrap from "bootstrap";
import "bootswatch/dist/darkly/bootstrap.min.css";
import "./jsbeeb.css";
import * as utils from "./utils.js";
import { FakeVideo, Video } from "./video.js";
import { Debugger } from "./web/debug.js";
import { Cpu6502 } from "./6502.js";
import { Cmos } from "./cmos.js";
import { StairwayToHell } from "./sth.js";
import { GamePad } from "./gamepads.js";
import * as disc from "./fdc.js";
import { starCat } from "./discs/cat.js";
import { loadTape, loadTapeFromData } from "./tapes.js";
import { GoogleDriveLoader } from "./google-drive.js";
import * as tokeniser from "./basic-tokenise.js";
import * as canvasLib from "./canvas.js";
import { Config } from "./config.js";
import { initialise as electron } from "./app/electron.js";
import { AudioHandler } from "./web/audio-handler.js";
import { Econet } from "./econet.js";
import { toSsdOrDsd } from "./disc.js";
let processor;
let video;
let dbgr;
let frames = 0;
let frameSkip = 0;
let syncLights;
let discSth;
let tapeSth;
let running;
let model;
const gamepad = new GamePad();
let availableImages;
let discImage;
const extraRoms = [];
if (typeof starCat === "function") {
availableImages = starCat();
if (availableImages && availableImages[0]) {
discImage = availableImages[0].file;
}
}
let queryString = document.location.search.substring(1) + "&" + window.location.hash.substring(1);
let secondDiscImage = null;
let parsedQuery = {};
let needsAutoboot = false;
let autoType = "";
let keyLayout = window.localStorage.keyLayout || "physical";
const BBC = utils.BBC;
const keyCodes = utils.keyCodes;
const emuKeyHandlers = {};
let cpuMultiplier = 1;
let fastAsPossible = false;
let fastTape = false;
let noSeek = false;
let pauseEmu = false;
let stepEmuWhenPaused = false;
let audioFilterFreq = 7000;
let audioFilterQ = 5;
let stationId = 101;
let econet = null;
const isMac = window.navigator.platform.indexOf("Mac") === 0;
if (queryString) {
if (queryString[queryString.length - 1] === "/")
// workaround for shonky python web server
queryString = queryString.substring(0, queryString.length - 1);
queryString.split("&").forEach(function (keyval) {
const keyAndVal = keyval.split("=");
const key = decodeURIComponent(keyAndVal[0]);
let val = null;
if (keyAndVal.length > 1) val = decodeURIComponent(keyAndVal[1]);
parsedQuery[key] = val;
// eg KEY.CAPSLOCK=CTRL
let bbcKey;
if (key.toUpperCase().indexOf("KEY.") === 0) {
bbcKey = val.toUpperCase();
if (BBC[bbcKey]) {
const nativeKey = key.substring(4).toUpperCase(); // remove KEY.
if (keyCodes[nativeKey]) {
console.log("mapping " + nativeKey + " to " + bbcKey);
utils.userKeymap.push({ native: nativeKey, bbc: bbcKey });
} else {
console.log("unknown key: " + nativeKey);
}
} else {
console.log("unknown BBC key: " + val);
}
} else if (key.indexOf("GP.") === 0) {
// gamepad mapping
// eg ?GP.FIRE2=RETURN
const gamepadKey = key.substring(3).toUpperCase(); // remove GP. prefix
gamepad.remap(gamepadKey, val.toUpperCase());
} else {
switch (key) {
case "LEFT":
case "RIGHT":
case "UP":
case "DOWN":
case "FIRE":
gamepad.remap(key, val.toUpperCase());
break;
case "autoboot":
needsAutoboot = "boot";
break;
case "autochain":
needsAutoboot = "chain";
break;
case "autorun":
needsAutoboot = "run";
break;
case "autotype":
needsAutoboot = "type";
autoType = val;
break;
case "keyLayout":
keyLayout = (val + "").toLowerCase();
break;
case "disc":
case "disc1":
discImage = val;
break;
case "rom":
extraRoms.push(val);
break;
case "disc2":
secondDiscImage = val;
break;
case "embed":
$(".embed-hide").hide();
$("body").css("background-color", "transparent");
break;
case "fasttape":
fastTape = true;
break;
case "noseek":
noSeek = true;
break;
case "audiofilterfreq":
audioFilterFreq = Number(val);
break;
case "audiofilterq":
audioFilterQ = Number(val);
break;
case "stationId":
stationId = Number(val);
break;
}
}
});
}
if (parsedQuery.frameSkip) frameSkip = parseInt(parsedQuery.frameSkip);
const printerPort = {
outputStrobe: function (level, output) {
if (!printerTextArea) return;
if (!output || level) return;
const uservia = processor.uservia;
// Ack the character by pulsing CA1 low.
uservia.setca1(false);
uservia.setca1(true);
const newChar = String.fromCharCode(uservia.ora);
printerTextArea.value += newChar;
},
};
let userPort = null;
const keyswitch = true;
if (keyswitch) {
let switchState = 0xff;
const switchKey = function (down, code) {
const bit = 1 << (code - utils.keyCodes.K1);
if (down) switchState &= 0xff ^ bit;
else switchState |= bit;
};
for (let idx = utils.keyCodes.K1; idx <= utils.keyCodes.K8; ++idx) {
emuKeyHandlers[idx] = switchKey;
}
userPort = {
write: function () {},
read: function () {
return switchState;
},
};
}
const emulationConfig = {
keyLayout: keyLayout,
coProcessor: parsedQuery.coProcessor,
cpuMultiplier: cpuMultiplier,
videoCyclesBatch: parsedQuery.videoCyclesBatch,
extraRoms: extraRoms,
userPort: userPort,
printerPort: printerPort,
getGamepads: function () {
// Gamepads are only available in secure contexts. If e.g. loading from http:// urls they aren't there.
return navigator.getGamepads ? navigator.getGamepads() : [];
},
debugFlags: {
logFdcCommands: parsedQuery.logFdcCommands !== undefined,
logFdcStateChanges: parsedQuery.logFdcStateChanges !== undefined,
},
};
const config = new Config(function (changed) {
parsedQuery = _.extend(parsedQuery, changed);
if (
changed.model ||
changed.coProcessor !== undefined ||
changed.hasMusic5000 !== undefined ||
changed.hasTeletextAdaptor !== undefined ||
changed.hasEconet !== undefined
) {
areYouSure(
"Changing model requires a restart of the emulator. Restart now?",
"Yes, restart now",
"No, thanks",
function () {
updateUrl();
window.location.reload();
},
);
}
if (changed.keyLayout) {
window.localStorage.keyLayout = changed.keyLayout;
emulationConfig.keyLayout = changed.keyLayout;
processor.updateKeyLayout();
}
});
// Perform mapping of legacy models to the new format
config.mapLegacyModels(parsedQuery);
config.setModel(parsedQuery.model || guessModelFromUrl());
config.setKeyLayout(keyLayout);
config.set65c02(parsedQuery.coProcessor);
config.setEconet(parsedQuery.hasEconet);
config.setMusic5000(parsedQuery.hasMusic5000);
config.setTeletext(parsedQuery.hasTeletextAdaptor);
model = config.model;
function sbBind(div, url, onload) {
const img = div.find("img");
img.hide();
if (!url) return;
img.attr("src", url).bind("load", function () {
onload(div, img);
img.show();
});
}
sbBind($(".sidebar.left"), parsedQuery.sbLeft, function (div, img) {
div.css({ left: -img.width() - 5 });
});
sbBind($(".sidebar.right"), parsedQuery.sbRight, function (div, img) {
div.css({ right: -img.width() - 5 });
});
sbBind($(".sidebar.bottom"), parsedQuery.sbBottom, function (div, img) {
div.css({ bottom: -img.height() });
});
if (parsedQuery.cpuMultiplier) {
cpuMultiplier = parseFloat(parsedQuery.cpuMultiplier);
console.log("CPU multiplier set to " + cpuMultiplier);
}
const clocksPerSecond = (cpuMultiplier * 2 * 1000 * 1000) | 0;
const MaxCyclesPerFrame = clocksPerSecond / 10;
let tryGl = true;
if (parsedQuery.glEnabled !== undefined) {
tryGl = parsedQuery.glEnabled === "true";
}
const $screen = $("#screen");
const canvas = tryGl ? canvasLib.bestCanvas($screen[0]) : new canvasLib.Canvas($screen[0]);
video = new Video(model.isMaster, canvas.fb32, function paint(minx, miny, maxx, maxy) {
frames++;
if (frames < frameSkip) return;
frames = 0;
canvas.paint(minx, miny, maxx, maxy);
});
if (parsedQuery.fakeVideo !== undefined) video = new FakeVideo();
const audioHandler = new AudioHandler($("#audio-warning"), audioFilterFreq, audioFilterQ, noSeek);
// Firefox will report that audio is suspended even when it will
// start playing without user interaction, so we need to delay a
// little to get a reliable indication.
window.setTimeout(() => audioHandler.checkStatus(), 1000);
let lastShiftLocation = 1;
let lastCtrlLocation = 1;
let lastAltLocation = 1;
dbgr = new Debugger(video);
$(".initially-hidden").removeClass("initially-hidden");
function keyCode(evt) {
const ret = evt.which || evt.charCode || evt.keyCode;
const keyCodes = utils.keyCodes;
switch (evt.location) {
default:
// keyUp events seem to pass location = 0 (Chrome)
switch (ret) {
case keyCodes.SHIFT:
if (lastShiftLocation === 1) {
return keyCodes.SHIFT_LEFT;
} else {
return keyCodes.SHIFT_RIGHT;
}
case keyCodes.ALT:
if (lastAltLocation === 1) {
return keyCodes.ALT_LEFT;
} else {
return keyCodes.ALT_RIGHT;
}
case keyCodes.CTRL:
if (lastCtrlLocation === 1) {
return keyCodes.CTRL_LEFT;
} else {
return keyCodes.CTRL_RIGHT;
}
}
break;
case 1:
switch (ret) {
case keyCodes.SHIFT:
lastShiftLocation = 1;
return keyCodes.SHIFT_LEFT;
case keyCodes.ALT:
lastAltLocation = 1;
return keyCodes.ALT_LEFT;
case keyCodes.CTRL:
lastCtrlLocation = 1;
return keyCodes.CTRL_LEFT;
}
break;
case 2:
switch (ret) {
case keyCodes.SHIFT:
lastShiftLocation = 2;
return keyCodes.SHIFT_RIGHT;
case keyCodes.ALT:
lastAltLocation = 2;
return keyCodes.ALT_RIGHT;
case keyCodes.CTRL:
lastCtrlLocation = 2;
return keyCodes.CTRL_RIGHT;
}
break;
case 3: // numpad
switch (ret) {
case keyCodes.ENTER:
return utils.keyCodes.NUMPADENTER;
case keyCodes.DELETE:
return utils.keyCodes.NUMPAD_DECIMAL_POINT;
}
break;
}
return ret;
}
function keyPress(evt) {
if (document.activeElement.id === "paste-text") return;
if (running || (!dbgr.enabled() && !pauseEmu)) return;
const code = keyCode(evt);
if (dbgr.enabled() && code === 103 /* lower case g */) {
dbgr.hide();
go();
return;
}
if (pauseEmu) {
if (code === 103 /* lower case g */) {
pauseEmu = false;
go();
return;
} else if (code === 110 /* lower case n */) {
stepEmuWhenPaused = true;
go();
return;
}
}
const handled = dbgr.keyPress(keyCode(evt));
if (handled) evt.preventDefault();
}
emuKeyHandlers[utils.keyCodes.S] = function (down) {
if (down) {
utils.noteEvent("keyboard", "press", "S");
stop(true);
}
};
emuKeyHandlers[utils.keyCodes.R] = function (down) {
if (down) window.location.reload();
};
function keyDown(evt) {
audioHandler.tryResume();
if (document.activeElement.id === "paste-text") return;
if (!running) return;
const code = keyCode(evt);
if (evt.altKey) {
const handler = emuKeyHandlers[code];
if (handler) {
handler(true, code);
evt.preventDefault();
}
} else if (code === utils.keyCodes.HOME && evt.ctrlKey) {
utils.noteEvent("keyboard", "press", "home");
stop(true);
} else if (code === utils.keyCodes.INSERT && evt.ctrlKey) {
utils.noteEvent("keyboard", "press", "insert");
fastAsPossible = !fastAsPossible;
} else if (code === utils.keyCodes.END && evt.ctrlKey) {
utils.noteEvent("keyboard", "press", "end");
pauseEmu = true;
stop(false);
} else if (code === utils.keyCodes.F12 || code === utils.keyCodes.BREAK) {
utils.noteEvent("keyboard", "press", "break");
processor.setReset(true);
evt.preventDefault();
} else if (code === utils.keyCodes.B && evt.ctrlKey) {
// Ctrl-B turns on the printer, so we open a printer output
// window in addition to passing the keypress along to the beeb.
processor.sysvia.keyDown(code, evt.shiftKey);
evt.preventDefault();
checkPrinterWindow();
} else if (isMac && code === utils.keyCodes.CAPSLOCK) {
handleMacCapsLock();
evt.preventDefault();
} else {
processor.sysvia.keyDown(code, evt.shiftKey);
evt.preventDefault();
}
}
function keyUp(evt) {
if (document.activeElement.id === "paste-text") return;
// Always let the key ups come through. That way we don't cause sticky keys in the debugger.
const code = keyCode(evt);
if (processor && processor.sysvia) processor.sysvia.keyUp(code);
if (!running) return;
if (evt.altKey) {
const handler = emuKeyHandlers[code];
if (handler) handler(false, code);
} else if (code === utils.keyCodes.F12 || code === utils.keyCodes.BREAK) {
processor.setReset(false);
} else if (isMac && code === utils.keyCodes.CAPSLOCK) {
handleMacCapsLock();
}
evt.preventDefault();
}
function handleMacCapsLock() {
// Mac browsers seem to model caps lock as a physical key that's down when capslock is on, and up when it's off.
// No event is generated when it is physically released on the keyboard. So, we simulate a "tap" here.
processor.sysvia.keyDown(utils.keyCodes.CAPSLOCK);
setTimeout(() => processor.sysvia.keyUp(utils.keyCodes.CAPSLOCK), 100);
if (!window.localStorage.getItem("warnedAboutRubbishMacs")) {
showError(
"handling caps lock on Mac OS X",
"Mac OS X does not generate key up events for caps lock presses. " +
"jsbeeb can only simulate a 'tap' of the caps lock key. This means it doesn't work well for games " +
" that use caps lock for left or fire, as we can't tell if it's being held down. If you need to play " +
"such a game, please see the documentation about remapping keys." +
"Close this window to continue (you won't see this error again)",
);
window.localStorage.setItem("warnedAboutRubbishMacs", true);
}
}
const $discsModal = new bootstrap.Modal(document.getElementById("discs"));
const $fsModal = new bootstrap.Modal(document.getElementById("econetfs"));
function loadHTMLFile(file) {
const reader = new FileReader();
reader.onload = function (e) {
processor.fdc.loadDisc(0, disc.discFor(processor.fdc, file.name, e.target.result));
delete parsedQuery.disc;
delete parsedQuery.disc1;
updateUrl();
$discsModal.hide();
};
reader.readAsBinaryString(file);
}
function loadSCSIFile(file) {
const reader = new FileReader();
reader.onload = function (e) {
processor.filestore.scsi = utils.stringToUint8Array(e.target.result);
processor.filestore.PC = 0x400;
processor.filestore.SP = 0xff;
processor.filestore.A = 1;
processor.filestore.emulationSpeed = 0;
// Reset any open receive blocks
processor.econet.receiveBlocks = [];
processor.econet.nextReceiveBlockNumber = 1;
$fsModal.hide();
};
reader.readAsBinaryString(file);
}
const $pastetext = $("#paste-text");
$pastetext.on("paste", function (event) {
const text = event.originalEvent.clipboardData.getData("text/plain");
sendRawKeyboardToBBC(utils.stringToBBCKeys(text), true);
});
$pastetext.on("dragover", function (event) {
event.preventDefault();
event.stopPropagation();
event.originalEvent.dataTransfer.dropEffect = "copy";
});
$pastetext.on("drop", function (event) {
utils.noteEvent("local", "drop");
const file = event.originalEvent.dataTransfer.files[0];
loadHTMLFile(file);
});
const $cub = $("#cub-monitor");
$cub.on("mousemove mousedown mouseup", function (evt) {
audioHandler.tryResume();
if (document.activeElement !== document.body) document.activeElement.blur();
const cubOffset = $cub.offset();
const screenOffset = $screen.offset();
const x = (evt.offsetX - cubOffset.left + screenOffset.left) / $screen.width();
const y = (evt.offsetY - cubOffset.top + screenOffset.top) / $screen.height();
if (processor.touchScreen) processor.touchScreen.onMouse(x, y, evt.buttons);
evt.preventDefault();
});
$(window).blur(function () {
if (processor.sysvia) processor.sysvia.clearKeys();
});
$("#fs").click(function (event) {
$screen[0].requestFullscreen();
event.preventDefault();
});
document.onkeydown = keyDown;
document.onkeypress = keyPress;
document.onkeyup = keyUp;
$("#debug-pause").click(() => stop(true));
$("#debug-play").click(() => {
dbgr.hide();
go();
});
// To lower chance of data loss, only accept drop events in the drop
// zone in the menu bar.
document.ondragover = function (event) {
event.preventDefault();
event.dataTransfer.dropEffect = "none";
};
document.ondrop = function (event) {
event.preventDefault();
};
window.onbeforeunload = function () {
if (running && processor.sysvia.hasAnyKeyDown()) {
return (
"It seems like you're still using the emulator. If you're in Chrome, it's impossible for jsbeeb to prevent some shortcuts (like ctrl-W) from performing their default behaviour (e.g. closing the window).\n" +
"As a workarond, create an 'Application Shortcut' from the Tools menu. When jsbeeb runs as an application, it *can* prevent ctrl-W from closing the window."
);
}
};
if (model.hasEconet) {
econet = new Econet(stationId);
} else {
$("#fsmenuitem").hide();
}
const cmos = new Cmos(
{
load: function () {
if (window.localStorage.cmosRam) {
return JSON.parse(window.localStorage.cmosRam);
}
return null;
},
save: function (data) {
window.localStorage.cmosRam = JSON.stringify(data);
},
},
model.cmosOverride,
econet,
);
let printerWindow = null;
let printerTextArea = null;
function checkPrinterWindow() {
if (printerWindow && !printerWindow.closed) return;
printerWindow = window.open("", "_blank", "height=300,width=400");
printerWindow.document.write(
'<textarea id="text" rows="15" cols="40" placeholder="Printer outputs here..."></textarea>',
);
printerTextArea = printerWindow.document.getElementById("text");
processor.uservia.setca1(true);
}
processor = new Cpu6502(
model,
dbgr,
video,
audioHandler.soundChip,
audioHandler.ddNoise,
model.hasMusic5000 ? audioHandler.music5000 : null,
cmos,
emulationConfig,
econet,
);
function setDisc1Image(name) {
delete parsedQuery.disc;
parsedQuery.disc1 = name;
updateUrl();
}
function sthClearList() {
$("#sth-list li:not('.template')").remove();
}
function sthStartLoad() {
$("#sth .loading").text("Loading catalog from STH archive");
$("#sth .loading").show();
sthClearList();
}
function discSthClick(item) {
utils.noteEvent("sth", "click", item);
setDisc1Image("sth:" + item);
const needsAutoboot = parsedQuery.autoboot !== undefined;
if (needsAutoboot) {
processor.reset(true);
}
popupLoading("Loading " + item);
loadDiscImage(parsedQuery.disc1)
.then(function (disc) {
processor.fdc.loadDisc(0, disc);
})
.then(
function () {
loadingFinished();
if (needsAutoboot) {
autoboot(item);
}
},
function (err) {
loadingFinished(err);
},
);
}
function tapeSthClick(item) {
utils.noteEvent("sth", "clickTape", item);
parsedQuery.tape = "sth:" + item;
updateUrl();
popupLoading("Loading " + item);
loadTapeImage(parsedQuery.tape).then(
function () {
loadingFinished();
},
function (err) {
loadingFinished(err);
},
);
}
const $sthModal = new bootstrap.Modal(document.getElementById("sth"));
function makeOnCat(onClick) {
return function (cat) {
sthClearList();
const sthList = $("#sth-list");
$("#sth .loading").hide();
const template = sthList.find(".template");
function doSome(all) {
const MaxAtATime = 100;
const Delay = 30;
const cat = all.slice(0, MaxAtATime);
const remaining = all.slice(MaxAtATime);
const filter = $("#sth-filter").val();
$.each(cat, function (_, cat) {
const row = template.clone().removeClass("template").appendTo(sthList);
row.find(".name").text(cat);
$(row).on("click", function () {
onClick(cat);
$sthModal.hide();
});
row.toggle(cat.toLowerCase().indexOf(filter) >= 0);
});
if (all.length) _.delay(doSome, Delay, remaining);
}
doSome(cat);
};
}
function sthOnError() {
$("#sth .loading").text("There was an error accessing the STH archive");
$("#sth .loading").show();
sthClearList();
}
discSth = new StairwayToHell(sthStartLoad, makeOnCat(discSthClick), sthOnError, false);
tapeSth = new StairwayToHell(sthStartLoad, makeOnCat(tapeSthClick), sthOnError, true);
$("#sth .autoboot").click(function () {
if ($("#sth .autoboot").prop("checked")) {
parsedQuery.autoboot = "";
} else {
delete parsedQuery.autoboot;
}
updateUrl();
});
$(document).on("click", "a.sth", function () {
const type = $(this).data("id");
if (type === "discs") {
discSth.populate();
} else if (type === "tapes") {
tapeSth.populate();
} else {
console.log("unknown id", type);
}
});
function setSthFilter(filter) {
filter = filter.toLowerCase();
$("#sth-list li:not('.template')").each(function () {
const el = $(this);
el.toggle(el.text().toLowerCase().indexOf(filter) >= 0);
});
}
$("#sth-filter").on("change keyup", function () {
setSthFilter($("#sth-filter").val());
});
function sendRawKeyboardToBBC(keysToSend, checkCapsAndShiftLocks) {
let lastChar;
let nextKeyMillis = 0;
processor.sysvia.disableKeyboard();
if (checkCapsAndShiftLocks) {
let toggleKey = null;
if (!processor.sysvia.capsLockLight) toggleKey = BBC.CAPSLOCK;
else if (processor.sysvia.shiftLockLight) toggleKey = BBC.SHIFTLOCK;
if (toggleKey) {
keysToSend.unshift(toggleKey);
keysToSend.push(toggleKey);
}
}
const sendCharHook = processor.debugInstruction.add(function nextCharHook() {
const millis = processor.cycleSeconds * 1000 + processor.currentCycles / (clocksPerSecond / 1000);
if (millis < nextKeyMillis) {
return;
}
if (lastChar && lastChar !== utils.BBC.SHIFT) {
processor.sysvia.keyToggleRaw(lastChar);
}
if (keysToSend.length === 0) {
// Finished
processor.sysvia.enableKeyboard();
sendCharHook.remove();
return;
}
const ch = keysToSend[0];
const debounce = lastChar === ch;
lastChar = ch;
if (debounce) {
lastChar = undefined;
nextKeyMillis = millis + 30;
return;
}
let time = 50;
if (typeof lastChar === "number") {
time = lastChar;
lastChar = undefined;
} else {
processor.sysvia.keyToggleRaw(lastChar);
}
// remove first character
keysToSend.shift();
nextKeyMillis = millis + time;
});
}
function autoboot(image) {
const BBC = utils.BBC;
console.log("Autobooting disc");
utils.noteEvent("init", "autoboot", image);
// Shift-break simulation, hold SHIFT for 1000ms.
sendRawKeyboardToBBC([BBC.SHIFT, 1000], false);
}
function autoBootType(keys) {
console.log("Auto typing '" + keys + "'");
utils.noteEvent("init", "autochain");
const bbcKeys = utils.stringToBBCKeys(keys);
sendRawKeyboardToBBC([1000].concat(bbcKeys), false);
}
function autoChainTape() {
console.log("Auto Chaining Tape");
utils.noteEvent("init", "autochain");
const bbcKeys = utils.stringToBBCKeys('*TAPE\nCH.""\n');
sendRawKeyboardToBBC([1000].concat(bbcKeys), false);
}
function autoRunTape() {
console.log("Auto Running Tape");
utils.noteEvent("init", "autorun");
const bbcKeys = utils.stringToBBCKeys("*TAPE\n*/\n");
sendRawKeyboardToBBC([1000].concat(bbcKeys), false);
}
function autoRunBasic() {
console.log("Auto Running basic");
utils.noteEvent("init", "autorunbasic");
const bbcKeys = utils.stringToBBCKeys("RUN\n");
sendRawKeyboardToBBC([1000].concat(bbcKeys), false);
}
function updateUrl() {
let url = window.location.origin + window.location.pathname;
let sep = "?";
$.each(parsedQuery, function (key, value) {
if (key.length > 0 && value) {
url += sep + encodeURIComponent(key) + "=" + encodeURIComponent(value);
sep = "&";
}
});
window.history.pushState(null, null, url);
}
const $errorDialog = $("#error-dialog");
const $errorDialogModal = new bootstrap.Modal($errorDialog[0]);
function showError(context, error) {
$errorDialog.find(".context").text(context);
$errorDialog.find(".error").text(error);
$errorDialogModal.show();
}
function splitImage(image) {
const match = image.match(/(([^:]+):\/?\/?|[!^|])?(.*)/);
const schema = match[2] || match[1] || "";
image = match[3];
return { image: image, schema: schema };
}
function loadDiscImage(discImage) {
if (!discImage) return Promise.resolve(null);
const split = splitImage(discImage);
discImage = split.image;
const schema = split.schema;
if (schema[0] === "!" || schema === "local") {
return Promise.resolve(disc.localDisc(processor.fdc, discImage));
}
// TODO: come up with a decent UX for passing an 'onChange' parameter to each of these.
// Consider:
// * hashing contents and making a local disc image named by original disc hash, save by that, and offer
// to load the modified disc on load.
// * popping up a message that notes the disc has changed, and offers a way to make a local image
// * Dialog box (ugh) saying "is this ok?"
if (schema === "|" || schema === "sth") {
return discSth.fetch(discImage).then(function (discData) {
return disc.discFor(processor.fdc, discImage, discData);
});
}
if (schema === "gd") {
const splat = discImage.match(/([^/]+)\/?(.*)/);
let title = "(unknown)";
if (splat) {
discImage = splat[1];
title = splat[2];
}
return gdLoad({ title: title, id: discImage });
}
if (schema === "b64data") {
const ssdData = atob(discImage);
discImage = "disk.ssd";
return Promise.resolve(disc.discFor(processor.fdc, discImage, ssdData));
}
if (schema === "data") {
const arr = Array.prototype.map.call(atob(discImage), (x) => x.charCodeAt(0));
const unzipped = utils.unzipDiscImage(arr);
const discData = unzipped.data;
discImage = unzipped.name;
return Promise.resolve(disc.discFor(processor.fdc, discImage, discData));
}
if (schema === "http" || schema === "https" || schema === "file") {
return utils.loadData(schema + "://" + discImage).then(function (discData) {
if (/\.zip/i.test(discImage)) {
const unzipped = utils.unzipDiscImage(discData);
discData = unzipped.data;
discImage = unzipped.name;
}
return disc.discFor(processor.fdc, discImage, discData);
});
}
return disc.load("discs/" + discImage).then(function (discData) {
return disc.discFor(processor.fdc, discImage, discData);
});
}
function loadTapeImage(tapeImage) {
const split = splitImage(tapeImage);
tapeImage = split.image;
const schema = split.schema;
if (schema === "|" || schema === "sth") {
return tapeSth.fetch(tapeImage).then(function (image) {
processor.acia.setTape(loadTapeFromData(tapeImage, image));
});
}
if (schema === "data") {
const arr = Array.prototype.map.call(atob(tapeImage), (x) => x.charCodeAt(0));
const unzipped = utils.unzipDiscImage(arr);
return Promise.resolve(processor.acia.setTape(loadTapeFromData(unzipped.name, unzipped.data)));
}
if (schema === "http" || schema === "https") {
return utils.loadData(schema + "://" + tapeImage).then(function (tapeData) {
if (/\.zip/i.test(tapeImage)) {
const unzipped = utils.unzipDiscImage(tapeData);
tapeData = unzipped.data;
tapeImage = unzipped.name;
}
processor.acia.setTape(loadTapeFromData(tapeImage, tapeData));
});
}
return loadTape("tapes/" + tapeImage).then(function (tape) {
processor.acia.setTape(tape);
});
}
$("#disc_load").on("change", function (evt) {
if (evt.target.files.length === 0) return;
utils.noteEvent("local", "click"); // NB no filename here
const file = evt.target.files[0];
loadHTMLFile(file);
evt.target.value = ""; // clear so if the user picks the same file again after a reset we get a "change"
});
$("#fs_load").on("change", function (evt) {
if (evt.target.files.length === 0) return;
utils.noteEvent("local", "click"); // NB no filename here
const file = evt.target.files[0];
loadSCSIFile(file);
evt.target.value = ""; // clear so if the user picks the same file again after a reset we get a "change"
});