1 files changed, 53 insertions, 0 deletions
diff --git a/browser/components/extensions/parent/ext-devtools-inspectedWindow.js b/browser/components/extensions/parent/ext-devtools-inspectedWindow.js
new file mode 100644
index 0000000000..9da54b9cfc
--- /dev/null
+++ b/browser/components/extensions/parent/ext-devtools-inspectedWindow.js
@@ -0,0 +1,53 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=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 file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var { SpreadArgs } = ExtensionCommon;
+
+this.devtools_inspectedWindow = class extends ExtensionAPI {
+  getAPI(context) {
+    // TODO - Bug 1448878: retrieve a more detailed callerInfo object,
+    // like the filename and lineNumber of the actual extension called
+    // in the child process.
+    const callerInfo = {
+      addonId: context.extension.id,
+      url: context.extension.baseURI.spec,
+    };
+
+    return {
+      devtools: {
+        inspectedWindow: {
+          async eval(expression, options) {
+            const toolboxEvalOptions = await getToolboxEvalOptions(context);
+            const evalOptions = Object.assign({}, options, toolboxEvalOptions);
+
+            const commands = await context.getDevToolsCommands();
+            const evalResult = await commands.inspectedWindowCommand.eval(
+              callerInfo,
+              expression,
+              evalOptions
+            );
+
+            // TODO(rpl): check for additional undocumented behaviors on chrome
+            // (e.g. if we should also print error to the console or set lastError?).
+            return new SpreadArgs([evalResult.value, evalResult.exceptionInfo]);
+          },
+          async reload(options) {
+            const { ignoreCache, userAgent, injectedScript } = options || {};
+
+            const commands = await context.getDevToolsCommands();
+            commands.inspectedWindowCommand.reload(callerInfo, {
+              ignoreCache,
+              userAgent,
+              injectedScript,
+            });
+          },
+        },
+      },
+    };
+  }
+};