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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
export class PurgeSessionHistoryChild extends JSWindowActorChild {
receiveMessage(message) {
if (message.name != "Browser:PurgeSessionHistory") {
return;
}
let sessionHistory = this.docShell.QueryInterface(
Ci.nsIWebNavigation
).sessionHistory;
if (!sessionHistory) {
return;
}
// place the entry at current index at the end of the history list, so it won't get removed
if (sessionHistory.index < sessionHistory.count - 1) {
let legacy = sessionHistory.legacySHistory;
let indexEntry = legacy.getEntryAtIndex(sessionHistory.index);
indexEntry.QueryInterface(Ci.nsISHEntry);
legacy.addEntry(indexEntry, true);
}
let purge = sessionHistory.count;
if (this.document.location.href != "about:blank") {
--purge; // Don't remove the page the user's staring at from shistory
}
if (purge > 0) {
sessionHistory.legacySHistory.purgeHistory(purge);
}
}
}