From 036e0af960fc85a4867b361a87970a84c7bcfca0 Mon Sep 17 00:00:00 2001
From: Chris Kosmakos <koz@kosmakos.com>
Date: Thu, 20 Feb 2014 10:46:22 +0000
Subject: [PATCH] added basic terminal command history

use up/down keys to navigate through command history.
---
 .../static/js/app/viewmodels/terminal.js         | 16 +++++++++++++++-
 src/octoprint/templates/index.jinja2             |  2 +-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/octoprint/static/js/app/viewmodels/terminal.js b/src/octoprint/static/js/app/viewmodels/terminal.js
index d739ea0e..076ae607 100644
--- a/src/octoprint/static/js/app/viewmodels/terminal.js
+++ b/src/octoprint/static/js/app/viewmodels/terminal.js
@@ -21,6 +21,10 @@ function TerminalViewModel(loginStateViewModel, settingsViewModel) {
     self.filters = self.settings.terminalFilters;
     self.filterRegex = undefined;
 
+    self.cmdHistory = [];
+    self.cmdHistoryCnt = 0;
+    self.cmdHistoryIdx = -1;
+
     self.activeFilters = ko.observableArray([]);
     self.activeFilters.subscribe(function(e) {
         self.updateFilterRegex();
@@ -105,13 +109,23 @@ function TerminalViewModel(loginStateViewModel, settingsViewModel) {
                 contentType: "application/json; charset=UTF-8",
                 data: JSON.stringify({"command": command})
             });
+	    self.cmdHistory[self.cmdHistoryCnt++] = command
+            self.cmdHistoryIdx = self.cmdHistoryCnt
             self.command("");
         }
     }
 
-    self.handleEnter = function(event) {
+    self.handleKeys = function(event) {
         if (event.keyCode == 13) {
             self.sendCommand();
+        } else if (event.keyCode == 38) {
+            if (self.cmdHistoryIdx >= 0) {
+                self.command(self.cmdHistory[--self.cmdHistoryIdx])
+            }
+        } else if (event.keyCode == 40) {
+            if (self.cmdHistoryIdx < self.cmdHistoryCnt) {
+                self.command(self.cmdHistory[++self.cmdHistoryIdx])
+            }
         }
     }
 
diff --git a/src/octoprint/templates/index.jinja2 b/src/octoprint/templates/index.jinja2
index 17f25b44..f74ec4ab 100644
--- a/src/octoprint/templates/index.jinja2
+++ b/src/octoprint/templates/index.jinja2
@@ -516,7 +516,7 @@
                             </div>
 
                             <div class="input-append" style="display: none;" data-bind="visible: loginState.isUser">
-                                <input type="text" id="terminal-command" data-bind="value: command, event: { keyup: function(d,e) { handleEnter(e); } }, enable: isOperational() && loginState.isUser()">
+                                <input type="text" id="terminal-command" data-bind="value: command, event: { keyup: function(d,e) { handleKeys(e); } }, enable: isOperational() && loginState.isUser()">
                                 <button class="btn" type="button" id="terminal-send" data-bind="click: sendCommand, enable: isOperational() && loginState.isUser()">Send</button>
                             </div>
                         </div>