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/* vim: set ts=2 sw=2 sts=2 et tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var EXPORTED_SYMBOLS = ["SwitchDocumentDirectionChild"];
class SwitchDocumentDirectionChild extends JSWindowActorChild {
receiveMessage(message) {
if (message.name == "SwitchDocumentDirection") {
let docShell = this.manager.browsingContext.docShell;
let document = docShell.QueryInterface(Ci.nsIWebNavigation).document;
this.switchDocumentDirection(document);
}
}
switchDocumentDirection(document) {
// document.dir can also be "auto", in which case it won't change
if (document.dir == "ltr" || document.dir == "") {
document.dir = "rtl";
} else if (document.dir == "rtl") {
document.dir = "ltr";
}
for (let frame of document.defaultView.frames) {
this.switchDocumentDirection(frame.document);
}
}
}