1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/server/actors/resources/platform-messages.js b/devtools/server/actors/resources/platform-messages.js
new file mode 100644
index 0000000000..6d9750c0a2
--- /dev/null
+++ b/devtools/server/actors/resources/platform-messages.js
@@ -0,0 +1,60 @@
+/* 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";
+
+const nsIConsoleListenerWatcher = require("resource://devtools/server/actors/resources/utils/nsi-console-listener-watcher.js");
+
+const {
+  TYPES: { PLATFORM_MESSAGE },
+} = require("resource://devtools/server/actors/resources/index.js");
+
+const {
+  createStringGrip,
+} = require("resource://devtools/server/actors/object/utils.js");
+
+class PlatformMessageWatcher extends nsIConsoleListenerWatcher {
+  shouldHandleTarget(targetActor) {
+    return this.isProcessTarget(targetActor);
+  }
+
+  /**
+   * Returns true if the message is considered a platform message, and as a result, should
+   * be sent to the client.
+   *
+   * @param {TargetActor} targetActor
+   * @param {nsIConsoleMessage} message
+   */
+  shouldHandleMessage(targetActor, message) {
+    // The listener we use can be called either with a nsIConsoleMessage or as nsIScriptError.
+    // In this file, we want to ignore nsIScriptError, which are handled by the
+    // error-messages resource handler (See Bug 1644186).
+    if (message instanceof Ci.nsIScriptError) {
+      return false;
+    }
+
+    // Ignore message that were forwarded from the content process to the parent process,
+    // since we're getting those directly from the content process.
+    if (message.isForwardedFromContentProcess) {
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Returns an object from the nsIConsoleMessage.
+   *
+   * @param {Actor} targetActor
+   * @param {nsIConsoleMessage} message
+   */
+  buildResource(targetActor, message) {
+    return {
+      message: createStringGrip(targetActor, message.message),
+      timeStamp: message.microSecondTimeStamp / 1000,
+      resourceType: PLATFORM_MESSAGE,
+    };
+  }
+}
+module.exports = PlatformMessageWatcher;