User:Avatar/monobook.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
Opera: Press Ctrl-F5.

function bidiSwitchSetup() {
	var editform = document.getElementById("wpTextbox1");
	if (editform == null) {
		return;
	}
	
	bidiAddButton(editform, "Default", function(style) {
		style.direction = "inherit";
		style.unicodeBidi = "inherit";
	});
	bidiAddButton(editform, "dir=ltr", function(style) {
		style.direction = "ltr";
	});
	bidiAddButton(editform, "dir=rtl", function(style) {
		style.direction = "rtl";
	});
	bidiAddButton(editform, "bidi=normal", function(style) {
		style.unicodeBidi = "normal";
	});
	bidiAddButton(editform, "bidi=override", function(style) {
		style.unicodeBidi = "bidi-override";
	});
}

function bidiAddButton(before, label, action) {
	var button = document.createElement("input");
	button.type = "button";
	button.value = label;
	button.onclick = function(event) {
		var box = document.getElementById("wpTextbox1");
		if (box == null) {
			alert("Broken! Edit box missing.");
		} else {
			//var style = document.getOverrideStyle(box, null);
			var style = box.style;
			action(style);
		}
	}
	before.parentNode.insertBefore(button, before);
}

hookEvent('load', bidiSwitchSetup);