HTMLArea 3.0, slightly edited by Janne Mikkonen. Alpha version.

lib/editor/dialog.js

@@ -0,0 +1,72 @@
+// Though "Dialog" looks like an object, it isn't really an object.  Instead
+// it's just namespace for protecting global symbols.
+
+function Dialog(url, action, init) {
+	if (typeof init == "undefined") {
+		init = window;	// pass this window object by default
+	}
+	if (document.all) {	// here we hope that Mozilla will never support document.all
+		var value =
+			showModalDialog(url, init,
+			//window.open(url, '_blank',
+			"resizable: no; help: no; status: no; scroll: no");
+		if (action) {
+			action(value);
+		}
+	} else {
+		return Dialog._geckoOpenModal(url, action, init);
+	}
+};
+
+Dialog._parentEvent = function(ev) {
+	if (Dialog._modal && !Dialog._modal.closed) {
+		Dialog._modal.focus();
+		// we get here in Mozilla only, anyway, so we can safely use
+		// the DOM version.
+		ev.preventDefault();
+		ev.stopPropagation();
+	}
+};
+
+// should be a function, the return handler of the currently opened dialog.
+Dialog._return = null;
+
+// constant, the currently opened dialog
+Dialog._modal = null;
+
+// the dialog will read it's args from this variable
+Dialog._arguments = null;
+
+Dialog._geckoOpenModal = function(url, action, init) {
+	var dlg = window.open(url, "ha_dialog",
+			      "toolbar=no,menubar=no,personalbar=no,width=10,height=10," +
+			      "scrollbars=no,resizable=no");
+	Dialog._modal = dlg;
+	Dialog._arguments = init;
+
+	// capture some window's events
+	function capwin(w) {
+		w.addEventListener("click", Dialog._parentEvent, true);
+		w.addEventListener("mousedown", Dialog._parentEvent, true);
+		w.addEventListener("focus", Dialog._parentEvent, true);
+	};
+	// release the captured events
+	function relwin(w) {
+		w.removeEventListener("focus", Dialog._parentEvent, true);
+		w.removeEventListener("mousedown", Dialog._parentEvent, true);
+		w.removeEventListener("click", Dialog._parentEvent, true);
+	};
+	capwin(window);
+	// capture other frames
+	//for (var i = 0; i < window.frames.length; capwin(window.frames[i++]));
+	// make up a function to be called when the Dialog ends.
+	Dialog._return = function (val) {
+		if (val && action) {
+			action(val);
+		}
+		relwin(window);
+		// capture other frames
+		//for (var i = 0; i < window.frames.length; relwin(window.frames[i++]));
+		Dialog._modal = null;
+	};
+};