1 files changed, 62 insertions, 0 deletions
diff --git a/app/assets/javascripts/terminal/terminal.js b/app/assets/javascripts/terminal/terminal.js
new file mode 100644
index 00000000000..6b9422b1816
--- /dev/null
+++ b/app/assets/javascripts/terminal/terminal.js
@@ -0,0 +1,62 @@
+/* global Terminal */
+
+(() => {
+  class GLTerminal {
+
+    constructor(options) {
+      this.options = options || {};
+
+      this.options.cursorBlink = options.cursorBlink || true;
+      this.options.screenKeys = options.screenKeys || true;
+      this.container = document.querySelector(options.selector);
+
+      this.setSocketUrl();
+      this.createTerminal();
+      $(window).off('resize.terminal').on('resize.terminal', () => {
+        this.terminal.fit();
+      });
+    }
+
+    setSocketUrl() {
+      const { protocol, hostname, port } = window.location;
+      const wsProtocol = protocol === 'https:' ? 'wss://' : 'ws://';
+      const path = this.container.dataset.projectPath;
+
+      this.socketUrl = `${wsProtocol}${hostname}:${port}${path}`;
+    }
+
+    createTerminal() {
+      this.terminal = new Terminal(this.options);
+      this.socket = new WebSocket(this.socketUrl, ['terminal.gitlab.com']);
+      this.socket.binaryType = 'arraybuffer';
+
+      this.terminal.open(this.container);
+      this.socket.onopen = () => { this.runTerminal(); };
+      this.socket.onerror = () => { this.handleSocketFailure(); };
+    }
+
+    runTerminal() {
+      const decoder = new TextDecoder('utf-8');
+      const encoder = new TextEncoder('utf-8');
+
+      this.terminal.on('data', (data) => {
+        this.socket.send(encoder.encode(data));
+      });
+
+      this.socket.addEventListener('message', (ev) => {
+        this.terminal.write(decoder.decode(ev.data));
+      });
+
+      this.isTerminalInitialized = true;
+      this.terminal.fit();
+    }
+
+    handleSocketFailure() {
+      this.terminal.write('\r\nConnection failure');
+    }
+
+  }
+
+  window.gl = window.gl || {};
+  gl.Terminal = GLTerminal;
+})();