1 files changed, 126 insertions, 0 deletions
diff --git a/skins/common/protect.js b/skins/common/protect.js
new file mode 100644
index 00000000..a144e5eb
--- /dev/null
+++ b/skins/common/protect.js
@@ -0,0 +1,126 @@
+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";
+		}
+	});
+}