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function protectInitialize(tableId, labelText) {
if (document.createTextNode) {
var box = document.getElementById(tableId);
if (!box)
return false;
var tbody = box.getElementsByTagName('tbody')[0];
var row = document.createElement('tr');
tbody.appendChild(row);
row.appendChild(document.createElement('td'));
var col2 = document.createElement('td');
row.appendChild(col2);
var check = document.createElement('input');
check.id = "mwProtectUnchained";
check.type = "checkbox";
check.onclick = protectChainUpdate;
col2.appendChild(check);
var label = document.createElement('label');
label.setAttribute("for", "mwProtectUnchained");
label.appendChild(document.createTextNode(labelText));
col2.appendChild(label);
if (protectAllMatch()) {
check.checked = false;
protectEnable(false);
} else {
check.checked = true;
protectEnable(true);
}
return true;
}
return false;
}
function protectLevelsUpdate(source) {
if (!protectUnchained()) {
protectUpdateAll(source.selectedIndex);
}
}
function protectChainUpdate() {
if (protectUnchained()) {
protectEnable(true);
} else {
protectChain();
protectEnable(false);
}
}
function protectAllMatch() {
var values = new Array();
protectForSelectors(function(set) {
values[values.length] = set.selectedIndex;
});
for (var i = 1; i < values.length; i++) {
if (values[i] != values[0]) {
return false;
}
}
return true;
}
function protectUnchained() {
var unchain = document.getElementById("mwProtectUnchained");
if (!unchain) {
alert("This shouldn't happen");
return false;
}
return unchain.checked;
}
function protectChain() {
// Find the highest-protected action and bump them all to this level
var maxIndex = -1;
protectForSelectors(function(set) {
if (set.selectedIndex > maxIndex) {
maxIndex = set.selectedIndex;
}
});
protectUpdateAll(maxIndex);
}
function protectUpdateAll(index) {
protectForSelectors(function(set) {
if (set.selectedIndex != index) {
set.selectedIndex = index;
}
});
}
function protectForSelectors(func) {
var selectors = protectSelectors();
for (var i = 0; i < selectors.length; i++) {
func(selectors[i]);
}
}
function protectSelectors() {
var all = document.getElementsByTagName("select");
var ours = new Array();
for (var i = 0; i < all.length; i++) {
var set = all[i];
if (set.id.match(/^mwProtect-level-/)) {
ours[ours.length] = set;
}
}
return ours;
}
function protectEnable(val) {
// fixme
var first = true;
protectForSelectors(function(set) {
if (first) {
first = false;
} else {
set.disabled = !val;
set.style.visible = val ? "visible" : "hidden";
}
});
}
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