1 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 export class PurgeSessionHistoryChild extends JSWindowActorChild {
7 receiveMessage(message) {
8 if (message.name != "Browser:PurgeSessionHistory") {
11 let sessionHistory = this.docShell.QueryInterface(Ci.nsIWebNavigation)
13 if (!sessionHistory) {
17 // place the entry at current index at the end of the history list, so it won't get removed
18 if (sessionHistory.index < sessionHistory.count - 1) {
19 let legacy = sessionHistory.legacySHistory;
20 let indexEntry = legacy.getEntryAtIndex(sessionHistory.index);
21 indexEntry.QueryInterface(Ci.nsISHEntry);
22 legacy.addEntry(indexEntry, true);
25 let purge = sessionHistory.count;
26 if (this.document.location.href != "about:blank") {
27 --purge; // Don't remove the page the user's staring at from shistory
31 sessionHistory.legacySHistory.purgeHistory(purge);