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Add command history to cli

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Use up/down arrows to cycle trought it
This commit is contained in:
Davide Bertola 2013-11-01 13:33:19 +01:00
parent 6c15a8a4fd
commit ecf585cd5b
1 changed files with 37 additions and 2 deletions
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37
tabs/cli.js
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@ -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++) {
@ -26,6 +51,16 @@ function tab_initialize_cli() {
}
});
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();