Merge pull request #206 from milushov/persistent-history

Persistent commands history
BetterErrors · Sep 25, 2013 · b598788 · b598788
2 parents f9c21af + 78d9f2e
commit b598788
Showing 1 changed file with 17 additions and 6 deletions.
diff --git a/lib/better_errors/templates/main.erb b/lib/better_errors/templates/main.erb
@@ -794,8 +794,13 @@
     function REPL(index) {
         this.index = index;
 
-        this.previousCommands = [];
-        this.previousCommandOffset = 0;
+        var previousCommands = JSON.parse(localStorage.getItem("better_errors_previous_commands"));
+        if(previousCommands === null) {
+          localStorage.setItem("better_errors_previous_commands", JSON.stringify([]));
+          previousCommands = [];
+        }
+
+        this.previousCommandOffset = previousCommands.length;
     }
 
     REPL.all = [];
@@ -865,28 +870,34 @@
     REPL.prototype.onEnterKey = function() {
         var text = this.getInput();
         if(text != "" && text !== undefined) {
-            this.previousCommandOffset = this.previousCommands.push(text);
+            var previousCommands = JSON.parse(localStorage.getItem("better_errors_previous_commands"));
+            this.previousCommandOffset = previousCommands.push(text);
+            if(previousCommands.length > 100) {
+              previousCommands.splice(0, 1);
+            }
+            localStorage.setItem("better_errors_previous_commands", JSON.stringify(previousCommands));
         }
         this.setInput("");
         this.sendInput(text);
     };
 
     REPL.prototype.onNavigateHistory = function(direction) {
         this.previousCommandOffset += direction;
+        var previousCommands = JSON.parse(localStorage.getItem("better_errors_previous_commands"));
 
         if(this.previousCommandOffset < 0) {
             this.previousCommandOffset = -1;
             this.setInput("");
             return;
         }
 
-        if(this.previousCommandOffset >= this.previousCommands.length) {
-            this.previousCommandOffset = this.previousCommands.length;
+        if(this.previousCommandOffset >= previousCommands.length) {
+            this.previousCommandOffset = previousCommands.length;
             this.setInput("");
             return;
         }
 
-        this.setInput(this.previousCommands[this.previousCommandOffset]);
+        this.setInput(previousCommands[this.previousCommandOffset]);
     };
 
     REPL.prototype.onKeyDown = function(ev) {