From ecf585cd5b04ab651ce4c6aa3d169aa5709b75e8 Mon Sep 17 00:00:00 2001
From: Davide Bertola <dade@dadeb.it>
Date: Fri, 1 Nov 2013 13:33:19 +0100
Subject: [PATCH] Add command history to cli

Use up/down arrows to cycle trought it
---
 tabs/cli.js | 39 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 37 insertions(+), 2 deletions(-)

diff --git a/tabs/cli.js b/tabs/cli.js
index e0249265..1904573f 100644
--- a/tabs/cli.js
+++ b/tabs/cli.js
@@ -1,3 +1,26 @@
+var CliHistory = function () {
+  this.history = [];
+  this.index = 0;
+};
+
+CliHistory.prototype = {
+  add: function (str) {
+    this.history.push(str);
+    this.index = this.history.length;
+  },
+  prev: function () {
+    if (this.index > 0) this.index -= 1;
+    return this.history[this.index];
+  },
+  next: function () {
+    if (this.index < this.history.length) this.index += 1;
+    return this.history[this.index - 1];
+  }
+}
+
+cli_history = new CliHistory();
+
+
 function tab_initialize_cli() {
     ga_tracker.sendAppView('CLI Page');
     
@@ -12,10 +35,12 @@ function tab_initialize_cli() {
     chrome.serial.write(connectionId, bufferOut, function(writeInfo) {
     });
 
-    $('.tab-cli textarea').keypress(function(event) {
+    var textarea = $('.tab-cli textarea');
+    textarea.keypress(function(event) {
         if (event.which == 13) { // enter
             var out_string = $('.tab-cli textarea').val();
             var out_arr = out_string.split("\n");
+            cli_history.add(out_string.trim());
             var timeout_needle = 0;
             
             for (var i = 0; i < out_arr.length; i++) {
@@ -25,6 +50,16 @@ function tab_initialize_cli() {
             $('.tab-cli textarea').val('');
         }
     });
+
+    textarea.keyup(function(event) {
+        var keyUp = { 38: true }, keyDown = { 40: true };
+
+        if (event.keyCode in keyUp)
+            textarea.val(cli_history.prev());
+
+        if (event.keyCode in keyDown)
+            textarea.val(cli_history.next());
+    });
     
     // give input element user focus
     $('.tab-cli textarea').focus();
@@ -128,4 +163,4 @@ function handle_CLI(data) {
                 $('.tab-cli .window').scrollTop($('.tab-cli .window .wrapper').height());
         }
     }
-}
\ No newline at end of file
+}