summaryrefslogtreecommitdiffstats
path: root/application/basilisk/components/sessionstore/DocShellCapabilities.jsm
diff options
context:
space:
mode:
authorMatt A. Tobin <email@mattatobin.com>2018-02-02 03:32:58 -0500
committerMatt A. Tobin <email@mattatobin.com>2018-02-02 03:32:58 -0500
commite72ef92b5bdc43cd2584198e2e54e951b70299e8 (patch)
tree01ceb4a897c33eca9e7ccf2bc3aefbe530169fe5 /application/basilisk/components/sessionstore/DocShellCapabilities.jsm
parent0d19b77d3eaa5b8d837bf52c19759e68e42a1c4c (diff)
downloadUXP-e72ef92b5bdc43cd2584198e2e54e951b70299e8.tar
UXP-e72ef92b5bdc43cd2584198e2e54e951b70299e8.tar.gz
UXP-e72ef92b5bdc43cd2584198e2e54e951b70299e8.tar.lz
UXP-e72ef92b5bdc43cd2584198e2e54e951b70299e8.tar.xz
UXP-e72ef92b5bdc43cd2584198e2e54e951b70299e8.zip
Add Basilisk
Diffstat (limited to 'application/basilisk/components/sessionstore/DocShellCapabilities.jsm')
-rw-r--r--application/basilisk/components/sessionstore/DocShellCapabilities.jsm50
1 files changed, 50 insertions, 0 deletions
diff --git a/application/basilisk/components/sessionstore/DocShellCapabilities.jsm b/application/basilisk/components/sessionstore/DocShellCapabilities.jsm
new file mode 100644
index 000000000..098aae86f
--- /dev/null
+++ b/application/basilisk/components/sessionstore/DocShellCapabilities.jsm
@@ -0,0 +1,50 @@
+/* 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";
+
+this.EXPORTED_SYMBOLS = ["DocShellCapabilities"];
+
+/**
+ * The external API exported by this module.
+ */
+this.DocShellCapabilities = Object.freeze({
+ collect: function (docShell) {
+ return DocShellCapabilitiesInternal.collect(docShell);
+ },
+
+ restore: function (docShell, disallow) {
+ return DocShellCapabilitiesInternal.restore(docShell, disallow);
+ },
+});
+
+/**
+ * Internal functionality to save and restore the docShell.allow* properties.
+ */
+var DocShellCapabilitiesInternal = {
+ // List of docShell capabilities to (re)store. These are automatically
+ // retrieved from a given docShell if not already collected before.
+ // This is made so they're automatically in sync with all nsIDocShell.allow*
+ // properties.
+ caps: null,
+
+ allCapabilities: function (docShell) {
+ if (!this.caps) {
+ let keys = Object.keys(docShell);
+ this.caps = keys.filter(k => k.startsWith("allow")).map(k => k.slice(5));
+ }
+ return this.caps;
+ },
+
+ collect: function (docShell) {
+ let caps = this.allCapabilities(docShell);
+ return caps.filter(cap => !docShell["allow" + cap]);
+ },
+
+ restore: function (docShell, disallow) {
+ let caps = this.allCapabilities(docShell);
+ for (let cap of caps)
+ docShell["allow" + cap] = !disallow.has(cap);
+ },
+};