1 files changed, 93 insertions, 0 deletions
diff --git a/toolkit/components/webextensions/ext-c-runtime.js b/toolkit/components/webextensions/ext-c-runtime.js
new file mode 100644
index 000000000..8adca60ca
--- /dev/null
+++ b/toolkit/components/webextensions/ext-c-runtime.js
@@ -0,0 +1,93 @@
+"use strict";
+
+function runtimeApiFactory(context) {
+  let {extension} = context;
+
+  return {
+    runtime: {
+      onConnect: context.messenger.onConnect("runtime.onConnect"),
+
+      onMessage: context.messenger.onMessage("runtime.onMessage"),
+
+      connect: function(extensionId, connectInfo) {
+        let name = connectInfo !== null && connectInfo.name || "";
+        extensionId = extensionId || extension.id;
+        let recipient = {extensionId};
+
+        return context.messenger.connect(context.messageManager, name, recipient);
+      },
+
+      sendMessage: function(...args) {
+        let options; // eslint-disable-line no-unused-vars
+        let extensionId, message, responseCallback;
+        if (typeof args[args.length - 1] == "function") {
+          responseCallback = args.pop();
+        }
+        if (!args.length) {
+          return Promise.reject({message: "runtime.sendMessage's message argument is missing"});
+        } else if (args.length == 1) {
+          message = args[0];
+        } else if (args.length == 2) {
+          if (typeof args[0] == "string" && args[0]) {
+            [extensionId, message] = args;
+          } else {
+            [message, options] = args;
+          }
+        } else if (args.length == 3) {
+          [extensionId, message, options] = args;
+        } else if (args.length == 4 && !responseCallback) {
+          return Promise.reject({message: "runtime.sendMessage's last argument is not a function"});
+        } else {
+          return Promise.reject({message: "runtime.sendMessage received too many arguments"});
+        }
+
+        if (extensionId != null && typeof extensionId != "string") {
+          return Promise.reject({message: "runtime.sendMessage's extensionId argument is invalid"});
+        }
+        if (options != null && typeof options != "object") {
+          return Promise.reject({message: "runtime.sendMessage's options argument is invalid"});
+        }
+        // TODO(robwu): Validate option keys and values when we support it.
+
+        extensionId = extensionId || extension.id;
+        let recipient = {extensionId};
+
+        return context.messenger.sendMessage(context.messageManager, message, recipient, responseCallback);
+      },
+
+      connectNative(application) {
+        let recipient = {
+          childId: context.childManager.id,
+          toNativeApp: application,
+        };
+
+        return context.messenger.connectNative(context.messageManager, "", recipient);
+      },
+
+      sendNativeMessage(application, message) {
+        let recipient = {
+          childId: context.childManager.id,
+          toNativeApp: application,
+        };
+        return context.messenger.sendNativeMessage(context.messageManager, message, recipient);
+      },
+
+      get lastError() {
+        return context.lastError;
+      },
+
+      getManifest() {
+        return Cu.cloneInto(extension.manifest, context.cloneScope);
+      },
+
+      id: extension.id,
+
+      getURL: function(url) {
+        return extension.baseURI.resolve(url);
+      },
+    },
+  };
+}
+
+extensions.registerSchemaAPI("runtime", "addon_child", runtimeApiFactory);
+extensions.registerSchemaAPI("runtime", "content_child", runtimeApiFactory);