DevTools: enable front-end to use external services for additional capabilities.

third_party/WebKit/Source/devtools/services/terminal.js

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var pty = require("pty.js");
+
+function Terminal(notify)
+{
+    this._notify = notify;
+}
+
+Terminal.prototype = {
+    init: function(params)
+    {
+        this._term = pty.spawn(process.platform === "win32" ? "cmd.exe" : "bash", [], {
+            name: "xterm-color",
+            cols: params.cols || 80,
+            rows: params.rows || 24,
+            cwd: process.env.PWD,
+            env: process.env
+        });
+
+        this._term.on("data", data => {
+            if (this._notify)
+                this._notify("data", { data: data });
+        });
+        return Promise.resolve({});
+    },
+
+    resize: function(params)
+    {
+        if (this._term)
+            this._term.resize(params.cols, params.rows);
+        return Promise.resolve({});
+    },
+
+    write: function(params)
+    {
+        this._term.write(params.data);
+        return Promise.resolve({});
+    },
+
+    dispose: function(params)
+    {
+        this._notify = null;
+        if (this._term)
+            process.kill(this._term.pid);
+        return Promise.resolve({});
+    },
+}
+
+exports.Terminal = Terminal;