Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/browser/extensions/screenshots/background/communication.js b/browser/extensions/screenshots/background/communication.js
new file mode 100644
index 0000000000..7db2b188f2
--- /dev/null
+++ b/browser/extensions/screenshots/background/communication.js
@@ -0,0 +1,53 @@
+/* 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/. */
+
+/* globals catcher, log */
+
+"use strict";
+
+this.communication = (function() {
+  const exports = {};
+
+  const registeredFunctions = {};
+
+  exports.onMessage = catcher.watchFunction((req, sender, sendResponse) => {
+    if (!(req.funcName in registeredFunctions)) {
+      log.error(`Received unknown internal message type ${req.funcName}`);
+      sendResponse({type: "error", name: "Unknown message type"});
+      return;
+    }
+    if (!Array.isArray(req.args)) {
+      log.error("Received message with no .args list");
+      sendResponse({type: "error", name: "No .args"});
+      return;
+    }
+    const func = registeredFunctions[req.funcName];
+    let result;
+    try {
+      req.args.unshift(sender);
+      result = func.apply(null, req.args);
+    } catch (e) {
+      log.error(`Error in ${req.funcName}:`, e, e.stack);
+      // FIXME: should consider using makeError from catcher here:
+      sendResponse({type: "error", message: e + "", errorCode: e.errorCode, popupMessage: e.popupMessage});
+      return;
+    }
+    if (result && result.then) {
+      result.then((concreteResult) => {
+        sendResponse({type: "success", value: concreteResult});
+      }).catch((errorResult) => {
+        log.error(`Promise error in ${req.funcName}:`, errorResult, errorResult && errorResult.stack);
+        sendResponse({type: "error", message: errorResult + "", errorCode: errorResult.errorCode, popupMessage: errorResult.popupMessage});
+      });
+      return;
+    }
+    sendResponse({type: "success", value: result});
+  });
+
+  exports.register = function(name, func) {
+    registeredFunctions[name] = func;
+  };
+
+  return exports;
+})();