Dirty initial commit

src/glkOte/glkote-term.js

@@ -0,0 +1,145 @@
+class GlkOte {
+  constructor() {
+    this.current_metrics = null
+    this.disabled = false
+    this.generation = 0
+    this.interface = null
+    this.version = require('../../package.json').version
+  }
+
+  measure_window() {
+    return {
+      buffercharheight: 1,
+      buffercharwidth: 1,
+      buffermarginx: 0,
+      buffermarginy: 0,
+      graphicsmarginx: 0,
+      graphicsmarginy: 0,
+      gridcharheight: 1,
+      gridcharwidth: 1,
+      gridmarginx: 0,
+      gridmarginy: 0,
+      height: 0,
+      inspacingx: 0,
+      inspacingy: 0,
+      outspacingx: 0,
+      outspacingy: 0,
+      width: 0,
+    }
+  }
+
+  getinterface() {
+    return this.interface
+  }
+
+  init(iface) {
+    if (!iface) {
+      this.error('No game interface object has been provided.')
+    }
+    if (!iface.accept) {
+      this.error('The game interface object must have an accept() function.')
+    }
+
+    this.interface = iface
+    this.current_metrics = this.measure_window()
+
+    this.send_response('init', null, this.current_metrics)
+  }
+
+  update(data) {
+    if (data.type === 'error') {
+      this.error(data.message)
+    }
+    if (data.type === 'pass') {
+      return
+    }
+    if (data.type !== 'update' && data.type !== 'exit') {
+      this.log(`Ignoring unknown message type: ${data.type}`)
+      return
+    }
+    if (data.gen === this.generation) {
+      this.log(`Ignoring repeated generation number: ${data.gen}`)
+      return
+    }
+    if (data.gen < this.generation) {
+      this.log(
+        `Ignoring out-of-order generation number: got ${data.gen}, currently at ${this.generation}`
+      )
+      return
+    }
+    this.generation = data.gen
+
+    if (this.disabled) {
+      this.disable(false)
+    }
+
+    /* Handle the update */
+    if (data.input != null) {
+      this.cancel_inputs(data.input)
+    }
+    if (data.windows != null) {
+      this.update_windows(data.windows)
+    }
+    if (data.content != null && data.content.length) {
+      this.update_content(data.content)
+    }
+    if (data.input != null) {
+      this.update_inputs(data.input)
+    }
+
+    /* Disable everything if requested */
+    this.disabled = false
+    if (data.disabled || data.specialinput) {
+      this.disable(true)
+    }
+
+    if (data.specialinput != null) {
+      this.accept_specialinput(data.specialinput)
+    }
+
+    /* Detach all handlers and exit */
+    if (data.type === 'exit') {
+      this.exit()
+    }
+  }
+
+  send_response(type, win, val, val2) {
+    const res = {
+      type: type,
+      gen: this.generation,
+    }
+
+    if (win) {
+      res.window = win.id
+    }
+
+    if (type === 'init' || type === 'arrange') {
+      res.metrics = val
+    }
+
+    if (type === 'init') {
+      res.support = this.support()
+    }
+
+    if (type === 'char') {
+      res.value = val
+    }
+
+    if (type === 'line') {
+      res.value = val
+    }
+
+    if (type === 'specialresponse') {
+      res.response = val
+      res.value = val2
+    }
+
+    this.interface.accept(res)
+  }
+
+  support() {
+    return []
+  }
+}
+
+module.exports = GlkOte