.eslintrc.json

@@ -1,35 +0,0 @@
-{
-  "env": {
-    "browser": true,
-    "es2021": true,
-      "node": true
-  },
-  "extends": "eslint:recommended",
-  "overrides": [
-  ],
-  "parserOptions": {
-    "ecmaVersion": "latest",
-    "sourceType": "module"
-  },
-  "ignorePatterns": [
-    "src/glkOte/*.js"
-  ],
-  "rules": {
-    "indent": [
-      "error",
-      2
-    ],
-    "linebreak-style": [
-      "error",
-      "unix"
-    ],
-    "quotes": [
-      "error",
-      "single"
-    ],
-    "semi": [
-      "error",
-      "never"
-    ]
-  }
-}

README.md

@@ -1,5 +1,4 @@
 # cheap-glkote
-[![NPM Version](https://img.shields.io/npm/v/cheap-glkote.svg?style=flat-square)](https://www.npmjs.org/package/cheap-glkote)
 
 This is an abstract implementation of the [GlkOte](https://github.com/erkyrath/glkote) library interface designed to be used with [Emglken](https://github.com/curiousdannii/emglken).<br>
 Can be used in Node.js or in a web browser.
@@ -11,24 +10,22 @@ This repository includes examples of [stdio interface implementation](https://gi
 
 ### Initialization
 ```js
-const { Dialog, GlkOte, send } =
+const { glkInterface, sendFn } = CheapGlkOte(handlers [, loggers])
-  CheapGlkOte(handlers [, { loggers, size }])
 ```
 
 ### Input
 ```js
-send('open door', inputType, targetWindow)
+sendFn('open door', windowObject)
 ```
-You can obtain `inputType` and `id` of `targetWindow` inside the `onUpdateInputs` handler.<br>
+You can received `windowObject` in `onUpdateWindows` handler.<br>
-You can specify `targetWindow` by its `id` inside the `onUpdateWindows` handler.<br>
+You should respect input type setted by `onUpdateInputs`.
-As I know, `inputType` can be `line` or `char`.
 
 ### Output and lifecycle
 ```js
 const handlers = {
   onInit: () => {
     /**
-      * It's time to initialize the user interface.
+      * It's time to prepare the user interface.
       */
   },
   onUpdateWindows: windows => {
@@ -36,11 +33,10 @@ const handlers = {
       * Game wants to change the number of windows.
       */
   },
-  onUpdateInputs: data => {
+  onUpdateInputs: type => {
     /**
       * Game wants to change input type.
-      * 'data' is a list with info about
+      * Supported types: 'char', 'line'.
-      * the target window and the input type.
       */
   },
   onUpdateContent: messages => {
@@ -87,16 +83,7 @@ Default loggers:
 const defaultLoggers = {
   log: console.log,
   warning: console.warn,
-  error: console.error,
+  error: console.error
-}
-```
-
-### Size
-Default sizes:
-```js
-const defaultSize = {
-  width: 80,
-  height: 25,
 }
 ```
 

bin/player.stdio.js

@@ -4,12 +4,11 @@
  * @see: https://github.com/curiousdannii/emglken/blob/master/bin/emglken.js
  */
 
-import { readFileSync } from 'fs'
+const fs = require('fs')
-import minimist from 'minimist'
+const minimist = require('minimist')
 
-import CheapGlkOte from '../src/index.js'
+const CheapGlkOte = require('../src/')
-
+const { handlers } = require('./stdio')
-import { handlers } from './stdio.js'
 
 const formats = [
   {
@@ -51,19 +50,13 @@ if (!format) {
   process.exit(0)
 }
 
-import(`emglken/src/${format.id}.js`)
+const { glkInterface, sendFn } = CheapGlkOte(handlers)
-  .then(({default: engine}) => engine)
+handlers.setSend(sendFn)
-  .then((engine) => new engine())
-  .then((vm) => {
-    const cheapGlkOte = CheapGlkOte(handlers)
 
-    handlers.setSend(cheapGlkOte.send)
+const engine = require('emglken/src/' + format.engine)
+const vm = new engine()
 
-    vm.init(readFileSync(storyfile), {
+vm.prepare(
-      Dialog: cheapGlkOte.Dialog,
+  fs.readFileSync(storyfile),
-      GlkOte: cheapGlkOte.GlkOte,
+  glkInterface)
-      Glk: {},
+vm.start()
-      wasmBinary: readFileSync(new URL(`../node_modules/emglken/build/${format.id}-core.wasm`, import.meta.url))
-    })
-    vm.start()
-  })

bin/stdio.js

@@ -2,22 +2,20 @@
  * @see: https://github.com/curiousdannii/glkote-term/blob/master/src/glkote-dumb.js
  */
 
-import { createInterface, emitKeypressEvents } from 'readline'
+const readline = require('readline')
-import MuteStream from 'mute-stream'
+const MuteStream = require('mute-stream')
-import ansiEsc from 'ansi-escapes'
+const ansiEscapes = require('ansi-escapes')
 
 const stdin = process.stdin
 const stdout = new MuteStream()
 stdout.pipe(process.stdout)
-const rl = createInterface({
+const rl = readline.createInterface({
   input: stdin,
   output: stdout,
   prompt: ''
 })
 
-let currentWindowId = null
 let currentWindow = null
-let currentInputType = null
 
 let send = _ => _
 
@@ -29,38 +27,28 @@ const onInit = () => {
   if (stdin.isTTY) {
     stdin.setRawMode(true)
   }
-  emitKeypressEvents(stdin)
+  readline.emitKeypressEvents(stdin)
   rl.resume()
-  clearScreen()
 }
 
 const onUpdateWindows = windows => {
-  currentWindow = currentWindowId
+  currentWindow = windows
-    ? windows
+    .filter(x => x.type === 'buffer')
-      .find(x => x.id === currentWindowId)
+    .slice(-1)[0]
-    : windows
-      .filter(x => x.type === 'buffer')
-      .slice(-1)[0]
 }
 
-const onUpdateInputs = data => {
+const onUpdateInputs = type => {
-  if (data.length === 0) return null
+  type
-  const { id, type } = data[0]
+    ? attach_handlers(type)
-
+    : detach_handlers()
-  currentWindowId = id
-
-  if (['char', 'line'].includes(type)) {
-    detach_handlers()
-    attach_handlers(type)
-  }
 }
 
-const clearScreen = () => {
+const onUpdateContent = allMessages => {
-  stdout.write('\u001B[2J\u001B[0;0f')
+  const messages = allMessages.filter(
-}
+    content => content.id === currentWindow.id
+  )[0]
 
-const drawBuffer = messages => {
+  return messages.text.forEach(({ append, content }) => {
-  messages.text.forEach(({ append, content }) => {
     if (!append) {
       stdout.write('\n')
     }
@@ -71,7 +59,7 @@ const drawBuffer = messages => {
 
         if (x.style === 'input') {
           if (stdout.isTTY) {
-            stdout.write(ansiEsc.eraseLines(2))
+            stdout.write(ansiEscapes.eraseLines(2))
             stdout.write('> ')
           }
         }
@@ -85,32 +73,10 @@ const drawBuffer = messages => {
   })
 }
 
-const drawGrid = messages => {
+const onDisable = disable =>
-  clearScreen()
+  disable
-  messages.lines
+    ? detach_handlers()
-    .map(x => x.content)
+    : attach_handlers()
-    .map(([x]) => x)
-    .map(({text}) => text)
-    .map(x => x.trim())
-    .forEach(x => stdout.write(`${x}\n`))
-}
-
-const onUpdateContent = allMessages => {
-  detach_handlers()
-
-  const messages = allMessages.find(
-    content => content.id === currentWindow.id
-  )
-
-  ;({
-    'buffer': drawBuffer,
-    'grid': drawGrid
-  })[currentWindow.type](messages)
-}
-
-const onDisable = disable => {
-  if (disable) detach_handlers()
-}
 
 const onExit = () => {
   detach_handlers()
@@ -119,8 +85,6 @@ const onExit = () => {
 }
 
 const onFileNameRequest = (tosave, usage, gameid, callback) => {
-  stdout.write('\n')
-  stdout.write(gameid, tosave)
   stdout.write('\n')
   rl.question(
     'Please enter a file name: ',
@@ -129,10 +93,10 @@ const onFileNameRequest = (tosave, usage, gameid, callback) => {
       : null))
 }
 
-const onFileRead = (dirent) =>
+const onFileRead = (dirent, israw) =>
   void console.log('onFileRead:', dirent)
 
-const onFileWrite = (dirent, content) =>
+const onFileWrite = (dirent, content, israw) =>
   void console.log('onFileWrite:', dirent, content.length)
 
 const handle_char_input = (str, key) => {
@@ -141,6 +105,8 @@ const handle_char_input = (str, key) => {
     '\t': 'tab',
   }
 
+  detach_handlers()
+
   // Make sure this char isn't being remembered for the next line input
   rl._line_buffer = null
   rl.line = ''
@@ -151,12 +117,10 @@ const handle_char_input = (str, key) => {
     str ||
     key.name.replace(/f(\d+)/, 'func$1')
 
-  send(res, currentInputType, currentWindow)
+  send(res, currentWindow)
-  detach_handlers()
 }
 
 const attach_handlers = type => {
-  currentInputType = type
   if (type === 'char') {
     stdout.mute()
     stdin.on('keypress', handle_char_input)
@@ -170,18 +134,18 @@ const detach_handlers = () => {
   stdin.removeListener('keypress', handle_char_input)
   rl.removeListener('line', handle_line_input)
   stdout.unmute()
-  currentInputType = null
 }
 
 const handle_line_input = line => {
   if (stdout.isTTY) {
-    stdout.write(ansiEsc.eraseLines(1))
+    stdout.write(ansiEscapes.eraseLines(1))
   }
-  send(line, currentInputType, currentWindow)
   detach_handlers()
+
+  send(line, currentWindow)
 }
 
-export const handlers = {
+module.exports.handlers = {
   onInit,
   onUpdateWindows,
   onUpdateInputs,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cheap-glkote",
-  "version": "0.5.1",
+  "version": "0.2.3",
   "description": "Abstract JavaScript implementation of GlkOte",
   "author": "He4eT <He4eTHb1u@gmail.com>",
   "license": "MIT",
@@ -10,26 +10,17 @@
     "interactive fiction",
     "interactive-fiction"
   ],
-  "type": "module",
-  "engines": {
-    "node": ">=14.0.0"
-  },
   "main": "src/index.js",
-  "files": [
-    "/src"
-  ],
   "repository": "https://github.com/He4eT/cheap-glkote",
   "bugs": "https://github.com/He4eT/cheap-glkote/issues",
+  "dependencies": {},
   "devDependencies": {
     "ansi-escapes": "^4.0.0",
-    "emglken": "^0.5.2",
+    "emglken": "^0.3.3",
-    "eslint": "^8.41.0",
     "minimist": "^1.2.5",
     "mute-stream": "0.0.8"
   },
   "scripts": {
-    "lint": "eslint bin/ src/",
-    "lint:fix": "eslint --fix bin/ src/",
     "play": "node ./bin/player.stdio.js",
     "test": "./tests/runtests.sh"
   }

src/cheapGlkOte.js

@@ -2,34 +2,41 @@
  * @see: https://github.com/curiousdannii/glkote-term/blob/master/src/glkote-dumb.js
  */
 
-import GlkOte from './glkOte/glkote-term.js'
+const GlkOte = require('./glkOte/glkote-term')
 
 class CheapGlkOte extends GlkOte {
-  constructor(handlers, loggers, size) {
+  constructor(handlers, loggers) {
-    super(size)
+    super()
+
+    this.current_input_type = null
 
     this.handlers = handlers
-    this.loggers = loggers
   }
 
-  sendFn (message, type, window) {
+  sendFn(message, window) {
     this.send_response(
-      type,
+      this.current_input_type,
       window,
       message)
+    this.current_input_type = null
   }
 
-  init (iface) {
+  init(iface) {
     this.handlers.onInit()
     super.init(iface)
   }
 
-  update_inputs (data) {
+  update_inputs(data) {
-    if (!data.length) return []
+    if (!data.length) return null
-    this.handlers.onUpdateInputs(data)
+
+    const { type } = data[0]
+    if (['char', 'line'].includes(type)) {
+      this.current_input_type = type
+      this.handlers.onUpdateInputs(type)
+    }
   }
 
-  accept_specialinput (data) {
+  accept_specialinput(data) {
     if (data.type === 'fileref_prompt') {
       const callback = ref =>
         this.send_response(
@@ -46,38 +53,44 @@ class CheapGlkOte extends GlkOte {
     }
   }
 
-  update_content (messages) {
+  update_content(messages) {
     this.handlers.onUpdateContent(messages)
   }
 
-  exit () {
+  exit() {
     this.handlers.onExit()
     super.exit()
   }
 
-  cancel_inputs (data) {
+  cancel_inputs(data) {
-    this.handlers.onUpdateInputs(data)
+    if (data.length === 0) {
+      this.current_input_type = null
+      this.handlers.onUpdateInputs(null)
+    }
   }
 
-  disable (data) {
+  disable(disable) {
-    this.handlers.onDisable(data)
+    this.disabled = disable
+    this.handlers.onDisable(disable)
   }
 
-  update_windows (windows) {
+  update_windows(windows) {
-    this.handlers.onUpdateWindows(windows)
+    if (windows.length) {
+      this.handlers.onUpdateWindows(windows)
+    }
   }
 
-  log (message) {
+  log(message) {
-    this.loggers.log(message)
+    loggers.log(message)
   }
 
-  warning (message) {
+  warning(message) {
-    this.loggers.warn(message)
+    loggers.warn(message)
   }
 
-  error (message) {
+  error(message) {
-    this.loggers.error(message)
+    loggers.error(message)
   }
 }
 
-export default CheapGlkOte
+module.exports = CheapGlkOte

src/fakeDialog.js

@@ -7,20 +7,11 @@ class FakeDialog {
   constructor(handlers, loggers) {
     this.streaming = false
     this.handlers = handlers
-    this.loggers = loggers
   }
 
-  file_ref_exists({ usage }) {
+  file_ref_exists = ref => false
-    return usage === 'save'
-      ? true
-      : false
-  }
 
-  file_remove_ref () {
+  file_construct_ref(filename, usage, gameid) {
-    return true
-  }
-
-  file_construct_ref(filename, usage) {
     return {
       filename,
       usage: usage || ''
@@ -41,16 +32,16 @@ class FakeDialog {
   }
 
   log(message) {
-    this.loggers.log(message)
+    loggers.log(message)
   }
 
   warning(message) {
-    this.loggers.warn(message)
+    loggers.warn(message)
   }
 
   error(message) {
-    this.loggers.error(message)
+    loggers.error(message)
   }
 }
 
-export default FakeDialog
+module.exports = FakeDialog

src/glkOte/glkapi.js

@@ -1,12 +1,10 @@
-'use strict';
-
 /* GlkAPI -- a Javascript Glk API for IF interfaces
- * GlkOte Library: version 2.3.2.
+ * GlkOte Library: version 2.2.3.
  * Glk API which this implements: version 0.7.4.
  * Designed by Andrew Plotkin <erkyrath@eblong.com>
  * <http://eblong.com/zarf/glk/glkote.html>
  * 
- * This Javascript library is copyright 2010-20 by Andrew Plotkin.
+ * This Javascript library is copyright 2010-16 by Andrew Plotkin.
  * It is distributed under the MIT license; see the "LICENSE" file.
  *
  * This file is a Glk API compatibility layer for glkote.js. It offers a 
@@ -40,16 +38,21 @@
    and will also double the write-count in a stream.
 */
 
-/* All state is contained in GlkClass. */
+/* Put everything inside the Glk namespace. */
-var GlkClass = function() {
 
-var GlkOte = null; /* imported API object */
+Glk = function() {
-var VM = null; /* imported API object (the VM interface) */
-var GiDispa = null; /* imported API object (the dispatch layer) */
-var Blorb = null; /* imported API object (the resource layer) */
 
-/* Environment capabilities. (Checked at init time.) */
+/* The VM interface object. */
-var has_canvas;
+var VM = null;
+
+/* References to external libraries */
+var Dialog;
+var GiDispa;
+var GiLoad;
+var GlkOte;
+
+/* Environment capabilities */
+var support = {};
 
 /* Options from the vm_options object. */
 var option_exit_warning;
@@ -67,6 +70,60 @@ var event_generation = 0;
 var current_partial_inputs = null;
 var current_partial_outputs = null;
 
+// Set external variable references
+function set_references( vm_options )
+{
+    if ( vm_options.Dialog )
+    {
+        Dialog = vm_options.Dialog;
+    }
+    if ( !Dialog )
+    {
+        if ( typeof window !== 'undefined' && window.Dialog )
+        {
+            Dialog = window.Dialog;
+        }
+        else
+        {
+            throw new Error( 'No reference to Dialog' );
+        }
+    }
+
+    if ( vm_options.GiDispa )
+    {
+        GiDispa = vm_options.GiDispa;
+    }
+    else if ( !GiDispa && typeof window !== 'undefined' && window.GiDispa )
+    {
+        GiDispa = window.GiDispa;
+    }
+
+    if ( vm_options.GiLoad )
+    {
+        GiLoad = vm_options.GiLoad;
+    }
+    else if ( !GiLoad && typeof window !== 'undefined' && window.GiLoad )
+    {
+        GiLoad = window.GiLoad;
+    }
+
+    if ( vm_options.GlkOte )
+    {
+        GlkOte = vm_options.GlkOte;
+    }
+    if ( !GlkOte )
+    {
+        if ( typeof window !== 'undefined' && window.GlkOte )
+        {
+            GlkOte = window.GlkOte;
+        }
+        else
+        {
+            throw new Error('No reference to GlkOte');
+        }
+    }
+}
+
 /* Initialize the library, initialize the VM, and set it running. (It will
    run until the first glk_select() or glk_exit() call.)
 
@@ -82,27 +139,17 @@ var current_partial_outputs = null;
    library sets that up for you.)
 */
 function init(vm_options) {
-    /* Either GlkOte was passed in or we must create one. */
+    /* Set references to external libraries */
-    if (vm_options.GlkOte) {
+    set_references( vm_options );
-        GlkOte = vm_options.GlkOte;
-    }
-    else if (window.GlkOteClass) {
-        GlkOte = new window.GlkOteClass();
-    }
-
-    /* Either Blorb was passed in or we don't have one. */
-    if (vm_options.Blorb) {
-        Blorb = vm_options.Blorb;
-    }
-
-    /* Check for canvas support. We don't rely on jquery here. */
-    has_canvas = (document.createElement('canvas').getContext != undefined);
 
     VM = vm_options.vm;
-    GiDispa = vm_options.GiDispa; /* may be null/undefined */
+    if (GiDispa)
+        GiDispa.set_vm(VM);
 
     vm_options.accept = accept_ui_event;
 
+    GlkOte.init(vm_options);
+
     option_exit_warning = vm_options.exit_warning;
     option_do_vm_autosave = vm_options.do_vm_autosave;
     option_before_select_hook = vm_options.before_select_hook;
@@ -112,16 +159,6 @@ function init(vm_options) {
     if (option_before_select_hook) {
         option_before_select_hook();
     }
-
-    /* Initialize the lower levels. */
-    
-    if (GiDispa)
-        GiDispa.init({ io:vm_options.io, vm:vm_options.vm });
-    GlkOte.init(vm_options);
-}
-
-function is_inited() {
-    return (VM != null && GlkOte != null);
 }
 
 function accept_ui_event(obj) {
@@ -147,10 +184,12 @@ function accept_ui_event(obj) {
 
     switch (obj.type) {
     case 'init':
-        content_metrics = complete_metrics(obj.metrics);
+        content_metrics = obj.metrics;
-        /* We ignore the support array. This library is updated in sync
+        /* Process the support array */
-           with GlkOte, so we know what it supports. */
+        if (obj.support) {
-        VM.start();
+            obj.support.forEach(function(item) {support[item] = 1;});
+        }
+        VM.init();
         break;
 
     case 'external':
@@ -192,7 +231,7 @@ function accept_ui_event(obj) {
         break;
 
     case 'arrange':
-        content_metrics = complete_metrics(obj.metrics);
+        content_metrics = obj.metrics;
         box = {
             left: content_metrics.outspacingx,
             top: content_metrics.outspacingy,
@@ -216,134 +255,6 @@ function accept_ui_event(obj) {
     }
 }
 
-/* Given a partial metrics object, return one with all the required
-   values. Missing values will default to 0 or the standard inherited
-   terms. (E.g., if "inspacingx" is missing it will default to
-   "inspacing", then "spacing", then 0. See measure_window() in 
-   glkote.js or data_metrics_parse() in RemGlk.)
-
-   All values in the given object will be copied over; defaulting only
-   applies to missing values from the required set.
-*/
-function complete_metrics(metrics) {
-
-    // Default values if absolutely nothing is specified.
-    var res = {
-        width: 80,
-        height: 50,
-        
-        gridcharwidth: 1,
-        gridcharheight: 1,
-        buffercharwidth: 1,
-        buffercharheight: 1,
-        
-        gridmarginx: 0,
-        gridmarginy: 0,
-        buffermarginx: 0,
-        buffermarginy: 0,
-        graphicsmarginx: 0,
-        graphicsmarginy: 0,
-        
-        outspacingx: 0,
-        outspacingy: 0,
-        inspacingx: 0,
-        inspacingy: 0,
-    };
-
-    // Various ways of specifying defaults.
-    var val;
-
-    val = metrics.charwidth;
-    if (val !== undefined) {
-        res.gridcharwidth = val;
-        res.buffercharwidth = val;
-    }
-    val = metrics.charheight;
-    if (val !== undefined) {
-        res.gridcharheight = val;
-        res.buffercharheight = val;
-    }
-
-    val = metrics.margin;
-    if (val !== undefined) {
-        res.gridmarginx = val;
-        res.gridmarginy = val;
-        res.buffermarginx = val;
-        res.buffermarginy = val;
-        res.graphicsmarginx = val;
-        res.graphicsmarginy = val;
-    }    
-
-    val = metrics.gridmargin;
-    if (val !== undefined) {
-        res.gridmarginx = val;
-        res.gridmarginy = val;
-    }
-    
-    val = metrics.buffermargin;
-    if (val !== undefined) {
-        res.buffermarginx = val;
-        res.buffermarginy = val;
-    }
-    
-    val = metrics.graphicsmargin;
-    if (val !== undefined) {
-        res.graphicsmarginx = val;
-        res.graphicsmarginy = val;
-    }
-
-    val = metrics.marginx;
-    if (val !== undefined) {
-        res.gridmarginx = val;
-        res.buffermarginx = val;
-        res.graphicsmarginx = val;
-    }
-    
-    val = metrics.marginy;
-    if (val !== undefined) {
-        res.gridmarginy = val;
-        res.buffermarginy = val;
-        res.graphicsmarginy = val;
-    }
-
-    val = metrics.spacing;
-    if (val !== undefined) {
-        res.inspacingx = val;
-        res.inspacingy = val;
-        res.outspacingx = val;
-        res.outspacingy = val;
-    }
-
-    val = metrics.inspacing;
-    if (val !== undefined) {
-        res.inspacingx = val;
-        res.inspacingy = val;
-    }
-
-    val = metrics.outspacing;
-    if (val !== undefined) {
-        res.outspacingx = val;
-        res.outspacingy = val;
-    }
-
-    val = metrics.spacingx;
-    if (val !== undefined) {
-        res.inspacingx = val;
-        res.outspacingx = val;
-    }
-
-    val = metrics.spacingy;
-    if (val !== undefined) {
-        res.inspacingy = val;
-        res.outspacingy = val;
-    }
-    
-    // Copy over all the supplied fields. These override the defaults above.
-    res = Object.assign(res, metrics);
-    
-    return res;
-}
-    
 function handle_arrange_input() {
     if (!gli_selectref)
         return;
@@ -542,8 +453,8 @@ function handle_line_input(disprock, input, termkey) {
     VM.resume();
 }
 
-function update() {
+function update(type) {
-    var dataobj = { type: 'update', gen: event_generation };
+    var dataobj = { type: type || 'update', gen: event_generation };
     var winarray = null;
     var contentarray = null;
     var inputarray = null;
@@ -794,27 +705,10 @@ function update() {
     }
 }
 
-/* Return the library interface object that we were passed or created.
-   Call this if you want to use, e.g., the same Dialog object that GlkOte
-   is using.
-*/
-function get_library(val) {
-    switch (val) {
-        case 'VM': return VM;
-        case 'GlkOte': return GlkOte;
-        case 'GiDispa': return GiDispa;
-        case 'Blorb': return Blorb;
-        case 'Dialog': return GlkOte.getlibrary('Dialog');
-    }
-    /* Unrecognized library name. */
-    return null;
-}
-    
 /* Wrap up the current display state as a (JSONable) object. This is
    called from Quixe.vm_autosave.
 */
 function save_allstate() {
-    var Dialog = GlkOte.getlibrary('Dialog');
     var res = {};
 
     if (gli_rootwin)
@@ -992,8 +886,6 @@ function save_allstate() {
 */
 function restore_allstate(res)
 {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     if (gli_windowlist || gli_streamlist || gli_filereflist)
         throw('restore_allstate: glkapi module has already been launched');
 
@@ -1166,7 +1058,7 @@ function restore_allstate(res)
 
         case strtype_Resource:
             str.resfilenum = obj.resfilenum;
-            var el = Blorb.get_data_chunk(str.resfilenum);
+            var el = GiLoad.find_data_chunk(str.resfilenum);
             if (el) {
                 str.buf = el.data;
             }
@@ -1251,11 +1143,6 @@ function restore_allstate(res)
 function fatal_error(msg) {
     has_exited = true;
     ui_disabled = true;
-    if (!GlkOte) {
-        // We haven't been initialized yet, so we can only try to log the error and hope someone sees it.
-        console.log('Fatal error:', msg);
-        return;
-    }
     GlkOte.error(msg);
     var dataobj = { type: 'update', gen: event_generation, disable: true };
     dataobj.input = [];
@@ -2806,10 +2693,8 @@ function UniArrayToBE32(arr) {
    up in Safari, in Opera, and in Firefox if you have Firebug installed.)
 */
 function qlog(msg) {
-    if (window.console && console.log)
+    if (typeof console !== 'undefined' && console.log)
         console.log(msg);
-    else if (window.opera && opera.postError)
-        opera.postError(msg);
 }
 
 /* RefBox: Simple class used for "call-by-reference" Glk arguments. The object
@@ -3011,13 +2896,13 @@ function gli_window_put_string(win, val) {
                gli_window_grid_canonicalize(), but I've inlined it. */
             if (win.cursorx < 0)
                 win.cursorx = 0;
-            if (win.cursorx >= win.gridwidth) {
+            else if (win.cursorx >= win.gridwidth) {
                 win.cursorx = 0;
                 win.cursory++;
             }
             if (win.cursory < 0)
                 win.cursory = 0;
-            if (win.cursory >= win.gridheight)
+            else if (win.cursory >= win.gridheight)
                 break; /* outside the window */
 
             if (ch == "\n") {
@@ -3027,7 +2912,7 @@ function gli_window_put_string(win, val) {
                 continue;
             }
 
-            var lineobj = win.lines[win.cursory];
+            lineobj = win.lines[win.cursory];
             lineobj.dirty = true;
             lineobj.chars[win.cursorx] = ch;
             lineobj.styles[win.cursorx] = win.style;
@@ -3050,13 +2935,13 @@ function gli_window_put_string(win, val) {
 function gli_window_grid_canonicalize(win) {
     if (win.cursorx < 0)
         win.cursorx = 0;
-    if (win.cursorx >= win.gridwidth) {
+    else if (win.cursorx >= win.gridwidth) {
         win.cursorx = 0;
         win.cursory++;
     }
     if (win.cursory < 0)
         win.cursory = 0;
-    if (win.cursory >= win.gridheight)
+    else if (win.cursory >= win.gridheight)
         return true; /* outside the window */
     return false;
 }
@@ -3209,7 +3094,7 @@ function gli_window_close(win, recurse) {
 
 function gli_window_rearrange(win, box) {
     var width, height, oldwidth, oldheight;
-    var min, max, diff, split, splitwid, ix, cx, lineobj;
+    var min, max, diff, splitwid, ix, cx, lineobj;
     var box1, box2, ch1, ch2;
 
     geometry_changed = true;
@@ -3495,8 +3380,6 @@ function gli_stream_dirty_file(str) {
    buffer out.
 */
 function gli_stream_flush_file(str) {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     if (str.streaming)
         GlkOte.log('### gli_stream_flush_file called for streaming file!');
     if (!(str.timer_id === null)) {
@@ -3507,8 +3390,6 @@ function gli_stream_flush_file(str) {
 }
 
 function gli_new_fileref(filename, usage, rock, ref) {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     var fref = {};
     fref.filename = filename;
     fref.rock = rock;
@@ -3629,7 +3510,7 @@ function gli_put_char(str, ch) {
                 var len = arr.length;
                 if (len > str.buflen-str.bufpos)
                     len = str.buflen-str.bufpos;
-                for (var ix=0; ix<len; ix++)
+                for (ix=0; ix<len; ix++)
                     str.buf[str.bufpos+ix] = arr[ix];
                 str.bufpos += len;
                 if (str.bufpos > str.bufeof)
@@ -3932,7 +3813,6 @@ function gli_get_line(str, buf, want_unicode) {
         return 0;
 
     var len = buf.length;
-    var lx, ch;
     var gotnewline;
 
     switch (str.type) {
@@ -4196,6 +4076,7 @@ function glk_exit() {
     gli_selectref = null;
     if (option_exit_warning)
         GlkOte.warning(option_exit_warning);
+    update('exit');
     return DidNotReturn;
 }
 
@@ -4252,22 +4133,20 @@ function glk_gestalt_ext(sel, val, arr) {
         return 2; // gestalt_CharOutput_ExactPrint
 
     case 4: // gestalt_MouseInput
-        if (val == Const.wintype_TextBuffer)
+        if (val == Const.wintype_TextGrid)
             return 1;
-        if (val == Const.wintype_Graphics && has_canvas)
+        if (support.graphics && val == Const.wintype_Graphics)
             return 1;
         return 0;
 
     case 5: // gestalt_Timer
-        return 1;
+        return support.timer || 0;
 
     case 6: // gestalt_Graphics
-        return 1;
+        return support.graphics || 0;
 
     case 7: // gestalt_DrawImage
-        if (val == Const.wintype_TextBuffer)
+        if (support.graphics && (val == Const.wintype_TextBuffer || val == Const.wintype_Graphics))
-            return 1;
-        if (val == Const.wintype_Graphics && has_canvas)
             return 1;
         return 0;
 
@@ -4281,10 +4160,10 @@ function glk_gestalt_ext(sel, val, arr) {
         return 0;
 
     case 11: // gestalt_Hyperlinks
-        return 1;
+        return support.hyperlinks || 0;
 
     case 12: // gestalt_HyperlinkInput
-        if (val == 3 || val == 4) // TextBuffer or TextGrid
+        if (support.hyperlinks && (val == Const.wintype_TextBuffer || val == Const.wintype_TextGrid))
             return 1;
         else
             return 0;
@@ -4293,7 +4172,7 @@ function glk_gestalt_ext(sel, val, arr) {
         return 0;
 
     case 14: // gestalt_GraphicsTransparency
-        return 1;
+        return support.graphics || 0;
 
     case 15: // gestalt_Unicode
         return 1;
@@ -4432,7 +4311,7 @@ function glk_window_open(splitwin, method, size, wintype, rock) {
         newwin.cursory = 0;
         break;
     case Const.wintype_Graphics:
-        if (!has_canvas) {
+        if (!support.graphics) {
             /* Graphics windows not supported; silently return null */
             gli_delete_window(newwin);
             return null;
@@ -4812,8 +4691,6 @@ function glk_stream_get_rock(str) {
 }
 
 function glk_stream_open_file(fref, fmode, rock) {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     if (!fref)
         throw('glk_stream_open_file: invalid fileref');
 
@@ -4916,20 +4793,21 @@ function glk_stream_open_memory(buf, fmode, rock) {
 function glk_stream_open_resource(filenum, rock) {
     var str;
 
-    if (!Blorb)
+    if (!GiLoad || !GiLoad.find_data_chunk)
         return null;
-    var el = Blorb.get_data_chunk(filenum);
+    var el = GiLoad.find_data_chunk(filenum);
     if (!el)
         return null;
 
     var buf = el.data;
+    var isbinary = (el.type == 'BINA');
 
     str = gli_new_stream(strtype_Resource,
         true, 
         false, 
         rock);
     str.unicode = false;
-    str.isbinary = el.binary;
+    str.isbinary = isbinary;
 
     str.resfilenum = filenum;
 
@@ -4954,20 +4832,21 @@ function glk_stream_open_resource(filenum, rock) {
 function glk_stream_open_resource_uni(filenum, rock) {
     var str;
 
-    if (!Blorb)
+    if (!GiLoad || !GiLoad.find_data_chunk)
         return null;
-    var el = Blorb.get_data_chunk(filenum);
+    var el = GiLoad.find_data_chunk(filenum);
     if (!el)
         return null;
 
     var buf = el.data;
+    var isbinary = (el.type == 'BINA');
 
     str = gli_new_stream(strtype_Resource,
         true, 
         false, 
         rock);
     str.unicode = true;
-    str.isbinary = el.binary;
+    str.isbinary = isbinary;
 
     str.resfilenum = filenum;
 
@@ -4990,8 +4869,6 @@ function glk_stream_open_resource_uni(filenum, rock) {
 }
 
 function glk_stream_close(str, result) {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     if (!str)
         throw('glk_stream_close: invalid stream');
 
@@ -5072,21 +4949,18 @@ function glk_stream_get_current() {
 }
 
 function glk_fileref_create_temp(usage, rock) {
-    var Dialog = GlkOte.getlibrary('Dialog');
     var filetype = (usage & Const.fileusage_TypeMask);
     var filetypename = FileTypeMap[filetype];
     var ref = Dialog.file_construct_temp_ref(filetypename);
-    var fref = gli_new_fileref(ref.filename, usage, rock, ref);
+    fref = gli_new_fileref(ref.filename, usage, rock, ref);
     return fref;
 }
 
 function glk_fileref_create_by_name(usage, filename, rock) {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     /* Filenames that do not come from the user must be cleaned up. */
     filename = Dialog.file_clean_fixed_name(filename, (usage & Const.fileusage_TypeMask));
 
-    var fref = gli_new_fileref(filename, usage, rock, null);
+    fref = gli_new_fileref(filename, usage, rock, null);
     return fref;
 }
 
@@ -5136,19 +5010,19 @@ function glk_fileref_create_by_prompt(usage, fmode, rock) {
 
 function gli_fileref_create_by_prompt_callback(obj) {
     var ref = obj.value;
-    /* This "value" field will be a dialog.js fileref object if we are
-       connected to GlkOte. However, if we are connected to RegTest,
-       it will be a plain string. We attempt to handle both cases. */
-
     var usage = ui_specialcallback.usage;
     var rock = ui_specialcallback.rock;
 
     var fref = null;
-    if (ref && typeof(ref) == 'object') {
+    if (ref) {
         fref = gli_new_fileref(ref.filename, usage, rock, ref);
     }
-    else if (ref && typeof(ref) == 'string') {
+
-        fref = gli_new_fileref(ref, usage, rock, null);
+    // If reading a file which doesn't exist, return null
+    if ( ui_specialinput.filemode === 'read' && !Dialog.file_ref_exists( fref.ref ) )
+    {
+        glk_fileref_destroy( fref );
+        fref = null;
     }
 
     ui_specialinput = null;
@@ -5189,14 +5063,12 @@ function glk_fileref_get_rock(fref) {
 }
 
 function glk_fileref_delete_file(fref) {
-    var Dialog = GlkOte.getlibrary('Dialog');
     if (!fref)
         throw('glk_fileref_delete_file: invalid fileref');
     Dialog.file_remove_ref(fref.ref);
 }
 
 function glk_fileref_does_file_exist(fref) {
-    var Dialog = GlkOte.getlibrary('Dialog');
     if (!fref)
         throw('glk_fileref_does_file_exist: invalid fileref');
     if (Dialog.file_ref_exists(fref.ref))
@@ -5497,10 +5369,10 @@ function glk_request_timer_events(msec) {
 /* Graphics functions. */
 
 function glk_image_get_info(imgid, widthref, heightref) {
-    if (!Blorb || !Blorb.get_image_info)
+    if (!GiLoad || !GiLoad.get_image_info)
         return null;
 
-    var info = Blorb.get_image_info(imgid);
+    var info = GiLoad.get_image_info(imgid);
     if (info) {
         if (widthref)
             widthref.set_value(info.width);
@@ -5519,9 +5391,9 @@ function glk_image_draw(win, imgid, val1, val2) {
     if (!win)
         throw('glk_image_draw: invalid window');
 
-    if (!Blorb || !Blorb.get_image_info)
+    if (!GiLoad || !GiLoad.get_image_info)
         return 0;
-    var info = Blorb.get_image_info(imgid);
+    var info = GiLoad.get_image_info(imgid);
     if (!info)
         return 0;
 
@@ -5569,9 +5441,9 @@ function glk_image_draw_scaled(win, imgid, val1, val2, width, height) {
     if (!win)
         throw('glk_image_draw_scaled: invalid window');
 
-    if (!Blorb || !Blorb.get_image_info)
+    if (!GiLoad || !GiLoad.get_image_info)
         return 0;
-    var info = Blorb.get_image_info(imgid);
+    var info = GiLoad.get_image_info(imgid);
     if (!info)
         return 0;
 
@@ -6082,8 +5954,6 @@ function glk_get_line_stream_uni(str, buf) {
 }
 
 function glk_stream_open_file_uni(fref, fmode, rock) {
-    var Dialog = GlkOte.getlibrary('Dialog');
-    
     if (!fref)
         throw('glk_stream_open_file_uni: invalid fileref');
 
@@ -6371,13 +6241,11 @@ function glk_date_to_simple_time_local(dateref, factor) {
 
 /* End of Glk namespace function. Return the object which will
    become the Glk global. */
-return {
+var api = {
-    classname: 'Glk',
+    version: '2.2.3', /* GlkOte/GlkApi version */
-    version: '2.3.2', /* GlkOte/GlkApi version */
+    set_references: set_references,
     init : init,
-    inited : is_inited,
     update : update,
-    getlibrary : get_library,
     save_allstate : save_allstate,
     restore_allstate : restore_allstate,
     fatal_error : fatal_error,
@@ -6517,12 +6385,12 @@ return {
     glk_stream_open_resource_uni : glk_stream_open_resource_uni
 };
 
-};
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = api;
+}
 
-/* Glk is an instance of GlkClass, ready to init. */
+return api;
-var Glk = new GlkClass();
 
-// Node-compatible behavior
+}();
-try { exports.Glk = Glk; exports.GlkClass = GlkClass; } catch (ex) {};
 
 /* End of Glk library. */

src/glkOte/glkote-term.js

@@ -3,21 +3,16 @@
  */
 
 class GlkOte {
-  constructor({width, height}) {
+  constructor() {
-    this.width = width
-    this.height = height
-
     this.current_metrics = null
     this.disabled = false
     this.generation = 0
     this.interface = null
-    this.version = '0.5.1'
+    this.version = require('../../package.json').version
   }
 
   measure_window() {
     return {
-      width: this.width,
-      height: this.height,
       buffercharheight: 1,
       buffercharwidth: 1,
       buffermarginx: 0,
@@ -28,10 +23,12 @@ class GlkOte {
       gridcharwidth: 1,
       gridmarginx: 0,
       gridmarginy: 0,
+      height: 0,
       inspacingx: 0,
       inspacingy: 0,
       outspacingx: 0,
-      outspacingy: 0
+      outspacingy: 0,
+      width: 0,
     }
   }
 
@@ -149,4 +146,4 @@ class GlkOte {
   }
 }
 
-export default GlkOte
+module.exports = GlkOte

src/index.js

@@ -1,9 +1,9 @@
-import FakeDialog from './fakeDialog.js'
+const FakeDialog = require('./fakeDialog')
-import CheapGlkOte from './cheapGlkOte.js'
+const CheapGlkOte = require('./cheapGlkOte')
 
 const noop = () => void null
 
-const defaultHandlers = [
+const noopHandlers = [
   'onInit',
   'onUpdateWindows',
   'onUpdateInputs',
@@ -12,36 +12,30 @@ const defaultHandlers = [
   'onFileNameRequest',
   'onFileRead',
   'onFileWrite',
-  'onExit',
+  'onExit'
 ].reduce((acc, x) => ((acc[x] = noop), acc), {})
 
 const defaultLoggers = {
   log: console.log,
   warning: console.warn,
-  error: console.error,
+  error: console.error
 }
 
-const defaultSize = {
+module.exports = (handlers_, loggers = defaultLoggers) => {
-  width: 80,
-  height: 25,
-}
-
-export default (handlers_, {loggers: loggers_, size: size_ } = {}) => {
   const handlers =
-    Object.assign({}, defaultHandlers, handlers_)
+    Object.assign({}, noopHandlers, handlers_)
-  const loggers =
-    Object.assign({}, defaultLoggers, loggers_)
-  const size =
-    Object.assign({}, defaultSize, size_)
 
   const Dialog = new FakeDialog(handlers, loggers)
-  const GlkOte = new CheapGlkOte(handlers, loggers, size)
+  const GlkOte = new CheapGlkOte(handlers, loggers)
 
-  const send = GlkOte.sendFn.bind(GlkOte)
+  const sendFn = GlkOte.sendFn.bind(GlkOte)
 
   return {
-    Dialog,
+    sendFn,
-    GlkOte,
+    glkInterface: {
-    send,
+      Dialog,
+      GlkOte,
+      Glk: {}
+    }
   }
 }