flm01/openwrt/package/luci/libs/cbi/htdocs/luci-static/resources/cbi.js

222 lines
4.8 KiB
JavaScript

/*
LuCI - Lua Configuration Interface
Copyright 2008 Steven Barth <steven@midlink.org>
Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
$Id$
*/
var cbi_d = [];
function cbi_d_add(field, dep, next) {
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 = {
"node": obj,
"id": field,
"parent": obj.parentNode.id,
"next": next,
"deps": []
};
cbi_d.unshift(entry);
}
entry.deps.push(dep)
}
}
function cbi_d_checkvalue(target, ref) {
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 == ref)
}
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_checkvalue(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];
var next = document.getElementById(entry.next)
var node = document.getElementById(entry.id)
var parent = document.getElementById(entry.parent)
if (node && node.parentNode && !cbi_d_check(entry.deps)) {
node.parentNode.removeChild(node);
state = (state || !node.parentNode)
} else if ((!node || !node.parentNode) && cbi_d_check(entry.deps)) {
if (!next) {
parent.appendChild(entry.node);
} else {
next.parentNode.insertBefore(entry.node, next);
}
state = (state || (node && 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 selid = "cbi.combobox." + id;
if (document.getElementById(selid)) {
return
}
var obj = document.getElementById(id)
var sel = document.createElement("select");
sel.id = selid;
sel.className = 'cbi-input-select';
if (obj.nextSibling) {
obj.parentNode.insertBefore(sel, obj.nextSibling);
} else {
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;
}
try {
cbi_d_update();
} catch (e) {
//Do nothing
}
})
}
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);
}
function cbi_filebrowser(id, url, defpath) {
var field = document.getElementById(id);
var browser = window.open(
url + ( field.value || defpath || '' ) + '?field=' + id,
"luci_filebrowser", "width=300,height=400,left=100,top=200,scrollbars=yes"
);
browser.focus();
}
//Hijacks the CBI form to send via XHR (requires Prototype)
function cbi_hijack_forms(layer, win, fail, load) {
var forms = layer.getElementsByTagName('form');
for (var i=0; i<forms.length; i++) {
$(forms[i]).observe('submit', function(event) {
// Prevent the form from also submitting the regular way
event.stop();
// Submit via XHR
event.element().request({
onSuccess: win,
onFailure: fail
});
if (load) {
load();
}
});
}
}