luci/libs/cbi/htdocs/luci-static/resources/cbi.js
2008-08-17 18:32:53 +00:00

154 lines
No EOL
3.3 KiB
JavaScript

var cbi_d = [];
function cbi_d_add(field, dep) {
var obj = document.getElementById(field);
if (obj) {
var entry
for (var i=0; i<cbi_d.length; i++) {
if (cbi_d[i].id == field) {
entry = cbi_d[i];
break;
}
}
if (!entry) {
entry = {
"id": field,
"node": obj,
"parent": obj.parentNode,
"next": obj.nextSibling,
"deps": []
};
cbi_d.unshift(entry);
}
entry.deps.push(dep)
}
}
function cbi_d_value(target) {
var t = document.getElementById(target);
var value
if (!t || !t.value) {
value = "";
} else {
value = t.value;
if (t.type == "checkbox") {
value = t.checked ? value : "";
}
}
return value
}
function cbi_d_check(deps) {
for (var i=0; i<deps.length; i++) {
var istat = true
for (var j in deps[i]) {
istat = (istat && cbi_d_value(j) == deps[i][j])
}
if (istat) {
return true
}
}
}
function cbi_d_update() {
var state = false;
for (var i=0; i<cbi_d.length; i++) {
var entry = cbi_d[i];
if (entry.node.parentNode && !cbi_d_check(entry.deps)) {
entry.parent.removeChild(entry.node);
state = (state || !entry.node.parentNode)
} else if (!entry.node.parentNode && cbi_d_check(entry.deps)) {
if (!entry.next) {
entry.parent.appendChild(entry.node);
} else {
entry.parent.insertBefore(entry.node, entry.next);
}
state = (state || entry.node.parentNode)
}
}
if (state) {
cbi_d_update();
}
}
function cbi_bind(obj, type, callback, mode) {
if (typeof mode == "undefined") {
mode = false;
}
if (!obj.addEventListener) {
ieCallback = function(){
var e = window.event;
if (!e.target && e.srcElement) {
e.target = e.srcElement;
};
e.target['_eCB' + type + callback] = callback;
e.target['_eCB' + type + callback](e);
e.target['_eCB' + type + callback] = null;
};
obj.attachEvent('on' + type, ieCallback);
} else {
obj.addEventListener(type, callback, mode);
}
return obj;
}
function cbi_combobox(id, values, def, man) {
var obj = document.getElementById(id)
var sel = document.createElement("select");
obj.parentNode.appendChild(sel);
if (!values[obj.value]) {
if (obj.value == "") {
var optdef = document.createElement("option");
optdef.value = "";
optdef.appendChild(document.createTextNode(def));
sel.appendChild(optdef);
} else {
var opt = document.createElement("option");
opt.value = obj.value;
opt.selected = "selected";
opt.appendChild(document.createTextNode(obj.value));
sel.appendChild(opt);
}
}
for (var i in values) {
var opt = document.createElement("option");
opt.value = i;
if (obj.value == i) {
opt.selected = "selected";
}
opt.appendChild(document.createTextNode(values[i]));
sel.appendChild(opt);
}
var optman = document.createElement("option");
optman.value = "";
optman.appendChild(document.createTextNode(man));
sel.appendChild(optman);
obj.style.display = "none";
cbi_bind(sel, "change", function() {
if (sel.selectedIndex == sel.options.length - 1) {
obj.style.display = "inline";
sel.parentNode.removeChild(sel);
obj.focus();
} else {
obj.value = sel.options[sel.selectedIndex].value;
}
})
}
function cbi_combobox_init(id, values, def, man) {
var obj = document.getElementById(id);
cbi_bind(obj, "blur", function() {
cbi_combobox(id, values, def, man)
});
cbi_combobox(id, values, def, man);
}