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var msd = new function() {
var __state = null;
var __upload_http = null;
var __image_file = null;
this.loadInitialState = function() {
var http = tools.makeRequest("GET", "/kvmd/msd", function() {
if (http.readyState === 4) {
if (http.status === 200) {
msd.setState(JSON.parse(http.responseText).result);
} else {
setTimeout(msd.loadInitialState, 1000);
}
}
});
};
this.setState = function(state) {
__state = state;
__applyState();
};
this.clickButton = function(el_button) {
if (el_button.id === "msd-upload-new-image-button") {
var form_data = new FormData();
form_data.append("image_name", __image_file.name);
form_data.append("image_data", __image_file);
__upload_http = new XMLHttpRequest();
__upload_http.open("POST", "/kvmd/msd/write", true);
__upload_http.upload.timeout = 5000;
__upload_http.onreadystatechange = __uploadStateChange;
__upload_http.upload.onprogress = __uploadProgress;
__upload_http.send(form_data);
} else if (el_button.id === "msd-abort-uploading-button") {
__upload_http.onreadystatechange = null;
__upload_http.upload.onprogress = null;
__upload_http.abort();
__upload_http = null;
$("msd-progress").setAttribute("data-label", "Aborted");
$("msd-progress-value").style.width = "0%";
} else if (el_button.id === "msd-switch-to-kvm-button" || el_button.id === "msd-switch-to-server-button") {
var to = (el_button.id === "msd-switch-to-kvm-button" ? "kvm" : "server");
var http = tools.makeRequest("POST", "/kvmd/msd/connect?to=" + to, function() {
if (http.readyState === 4) {
if (http.status !== 200) {
alert("Switch error:", http.responseText);
}
}
__applyState();
});
__applyState();
el_button.disabled = true;
}
};
this.selectNewImageFile = function(el_input) {
var image_file = (el_input.files.length ? el_input.files[0] : null);
if (image_file && image_file.size > __state.info.size) {
alert("New image is too big for your Mass Storage Device; maximum: " + __formatSize(__state.info.size));
el_input.value = "";
image_file = null;
}
__image_file = image_file;
$("msd-new-image").style.display = (__image_file ? "block" : "none");
$("msd-progress").setAttribute("data-label", "Waiting for upload ...");
$("msd-progress-value").style.width = "0%";
$("msd-new-image-name").innerHTML = (__image_file ? __image_file.name : "");
$("msd-new-image-size").innerHTML = (__image_file ? __formatSize(__image_file.size) : "");
__applyState();
};
var __applyState = function() {
if (__state.connected_to === "server") {
$("msd-another-another-user-uploads").style.display = "none";
$("msd-led").className = "led-on";
$("msd-status").innerHTML = "Connected to Server";
$("msd-another-another-user-uploads").style.display = "none";
} else if (__state.busy) {
if (!__upload_http) {
$("msd-another-another-user-uploads").style.display = "block";
}
$("msd-led").className = "led-msd-writing";
$("msd-status").innerHTML = "Uploading new image";
} else {
$("msd-another-another-user-uploads").style.display = "none";
$("msd-led").className = "led-off";
if (__state.in_operate) {
$("msd-status").innerHTML = "Connected to KVM";
} else {
$("msd-status").innerHTML = "Unavailable";
}
}
$("msd-not-in-operate").style.display = (__state.in_operate ? "none" : "block");
$("msd-current-image-broken").style.display = (
__state.in_operate && __state.info.image &&
!__state.info.image.complete && !__state.busy ? "block" : "none"
);
$("msd-current-image-name").innerHTML = (__state.in_operate && __state.info.image ? __state.info.image.name : "None");
$("msd-current-image-size").innerHTML = (__state.in_operate && __state.info.image ? __formatSize(__state.info.image.size) : "None");
$("msd-storage-size").innerHTML = (__state.in_operate ? __formatSize(__state.info.size) : "Unavailable");
$("msd-switch-to-kvm-button").disabled = (!__state.in_operate || __state.connected_to === "kvm" || __state.busy);
$("msd-switch-to-server-button").disabled = (!__state.in_operate || __state.connected_to === "server" || __state.busy);
$("msd-select-new-image-button").disabled = (!__state.in_operate || __state.connected_to !== "kvm" || __state.busy || __upload_http);
$("msd-upload-new-image-button").disabled = (!__state.in_operate || __state.connected_to !== "kvm" || __state.busy || !__image_file);
$("msd-abort-uploading-button").disabled = (!__state.in_operate || !__upload_http);
};
var __formatSize = function(size) {
if (size > 0) {
var index = Math.floor( Math.log(size) / Math.log(1024) );
return (size / Math.pow(1024, index)).toFixed(2) * 1 + " " + ["B", "kB", "MB", "GB", "TB"][index];
} else {
return 0;
}
};
var __uploadStateChange = function(event) {
if (__upload_http.readyState === 4) {
if (__upload_http.status !== 200) {
alert("Can't upload image to the Mass Storage Device:", __upload_http.responseText);
}
el_input.value = "";
__upload_http = null;
__applyState();
}
};
var __uploadProgress = function(event) {
if(event.lengthComputable) {
var percent = Math.round((event.loaded * 100) / event.total);
$("msd-progress").setAttribute("data-label", percent + "%");
$("msd-progress-value").style.width = percent + "%";
}
};
};
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