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basic shell functionality

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This commit is contained in:
overflowerror 2014-07-04 01:46:48 +02:00
parent 00b5470a4f
commit ee57c84c74
2 changed files with 87 additions and 3 deletions
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19
data/scripts/Program.js Normal file
View file

@ -0,0 +1,19 @@
var ProgramManager = function() {
}
ProgramManager.programs = [];
ProgramManager.instanceCounter = 1;
ProgramManager.instances = [];
var Program = function() {
}
Program.prototype.pid;
Program.prototype.init = function() { // Do not overwrite
this.pid = ProgramManager.instanceCounter++;
ProgramManager.instances.push(this);
}
Program.prototype.main = function(args) {
}
Program.prototype.output = function(text) {
}
Program.prototype.keyHandler = function(keyEvent) {
}

71
data/scripts/Shell.js
View file

@ -10,6 +10,12 @@ Shell.prototype.prompt = "\033[36m\\t\033[0m \033[35m\\h\033[0m\033[1m:\033[0m\\
Shell.prototype.user = "nobody";
Shell.prototype.hostname = "webcli";
Shell.prototype.directory = "/";
Shell.prototype.input = "";
Shell.prototype.inputPosition = 0;
Shell.prototype.history = [];
Shell.prototype.historyPosition = 0;
Shell.prototype.centeredOutput = function(text) { // does not work for ansi.sequences
var line = "";
for (var i = 0; i < text.length; i++) {
@ -54,7 +60,6 @@ Welcome to Webcli\n\
}
Shell.prototype.displayPrompt = function() {
var text = this.prompt;
console.dir(this);
while (text.indexOf("\\u") != -1)
text = text.replace("\\u", this.user);
while (text.indexOf("\\h") != -1)
@ -65,6 +70,66 @@ Shell.prototype.displayPrompt = function() {
text = text.replace("\\t", new Date().getHours() + ":" + new Date().getMinutes());
while (text.indexOf("\\$") != -1)
text = text.replace("\\$", (this.user == "root" ? "#" : "$"));
this.output(text);
this.output("\033[2K\033[1G" + text + this.input + "\033[" + (this.input.length - this.inputPosition) + "D");
}
Shell.prototype.handleKey = function(keyEvent) {
if (keyEvent.isSpecialKey) {
var ke = KeyEvent.SpecialKeys;
switch(keyEvent.key) {
case ke.enter:
this.output("\n");
this.history.push(this.input);
this.historyPosition = this.history.length;
this.input = "";
this.inputPosition = 0;
this.exec();
break;
case ke.backspace:
if (this.inputPosition == 0)
break;
var tmp = this.input.split("");
tmp.splice(--this.inputPosition, 1);
this.input = tmp.join("");
this.displayPrompt();
break;
case ke.left:
if (this.inputPosition == 0)
break;
this.inputPosition--;
this.displayPrompt();
break;
case ke.right:
if (this.inputPosition == this.input.length)
break;
this.inputPosition++;
this.displayPrompt();
break;
case ke.up:
if (this.historyPosition == 0)
break;
this.input = this.history[--this.historyPosition];
this.inputPosition = this.input.length;
this.displayPrompt();
break;
case ke.down:
if (this.historyPosition == this.history.length)
break;
if (this.historyPosition == this.history.length - 1) {
this.input = "";
this.inputPosition = 0;
this.historyPosition = this.history.length;
this.displayPrompt();
break;
}
this.input = this.history[++this.historyPosition];
this.inputPosition = this.input.length;
this.displayPrompt();
break;
}
} else {
var tmp = this.input.split("");
tmp.splice(this.inputPosition++, 0, keyEvent.key);
this.input = tmp.join("");
this.displayPrompt();
}
}