♻️ Rewrite in TypeScript

.circleci/config.yml

@@ -0,0 +1,37 @@
+# Javascript Node CircleCI 2.0 configuration file
+#
+# Check https://circleci.com/docs/2.0/language-javascript/ for more details
+#
+version: 2
+jobs:
+  build:
+    docker:
+      # specify the version you desire here
+      - image: circleci/node:10.14.0
+
+      # Specify service dependencies here if necessary
+      # CircleCI maintains a library of pre-built images
+      # documented at https://circleci.com/docs/2.0/circleci-images/
+      # - image: circleci/mongo:3.4.4
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "yarn.lock" }}
+            # fallback to using the latest cache if no exact match is found
+            - v1-dependencies-
+
+      - run: yarn install
+
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "yarn.lock" }}
+
+      # run tests!
+      - run: yarn test

.nvmrc

@@ -0,0 +1 @@
+v10.14.0

.prettierrc

@@ -0,0 +1,5 @@
+{
+  "singleQuote": true,
+  "printWidth": 120,
+  "trailingComma": "es5"
+}

README.md

@@ -1,18 +1,14 @@
-talker.js
-=========
+# talker.js
 
-A tiny (<4kB minified, <1kB min+gzip), promise-based library for cross-origin communication between frames and windows.
+A small (<13kB minified, <6kB min+gzip), promise-based library for cross-origin communication between frames and windows.
 
-Documentation
--------------
+## Documentation
 
 Please see [drive.secondstreet.com/introducing-talker](http://drive.secondstreet.com/introducing-talker/) for instructions and examples for using Talker.js in your own projects.
 
-Building
---------
+## Building
 
 ```
-npm install -g grunt-cli
-npm install
-grunt
+yarn install
+yarn run build
 ```

bower.json

@@ -5,22 +5,8 @@
   "author": "Second Street <development@secondstreet.com>",
   "description": "A tiny, promise-based library for cross-origin communication between frames and windows.",
   "main": "./dist/talker.min.js",
-  "moduleType": [
-    "globals"
-  ],
-  "keywords": [
-    "iframe",
-    "postMessage",
-    "cross-domain",
-    "cross-origin",
-    "promise"
-  ],
+  "moduleType": ["globals"],
+  "keywords": ["iframe", "postMessage", "cross-domain", "cross-origin", "promise"],
   "license": "MIT",
-  "ignore": [
-    "**/.*",
-    "node_modules",
-    "bower_components",
-    "test",
-    "tests"
-  ]
+  "ignore": ["**/.*", "node_modules", "bower_components", "test", "tests"]
 }

dist/constants.d.ts

@@ -0,0 +1,2 @@
+export declare const TALKER_CONTENT_TYPE: string;
+export declare const TALKER_ERR_MSG_TIMEOUT: string;

dist/index.d.ts

@@ -0,0 +1,74 @@
+import { ManipulablePromise } from "./utils/manipulable-promise";
+import { IncomingMessage, OutgoingMessage, Stringifyable } from "./message";
+/**
+ * Talker
+ * Opens a communication line between this window and a remote window via postMessage.
+ */
+declare class Talker {
+    private readonly remoteWindow;
+    private readonly remoteOrigin;
+    private readonly localWindow;
+    timeout: number;
+    /**
+     * @property onMessage - Will be called with every non-handshake, non-response message from the remote window
+     */
+    onMessage?: (message: IncomingMessage) => void;
+    private readonly handshake;
+    private handshaken;
+    private latestId;
+    private readonly queue;
+    private readonly sent;
+    /**
+     * @param remoteWindow - The remote `window` object to post/receive messages to/from
+     * @param remoteOrigin - The protocol, host, and port you expect the remoteWindow to be
+     * @param localWindow - The local `window` object
+     */
+    constructor(remoteWindow: Window, remoteOrigin: string, localWindow?: Window);
+    /**
+     * @param namespace - The namespace the message is in
+     * @param data - The data to send
+     * @param responseToId - If this is a response to a previous message, its ID.
+     */
+    send(namespace: string, data: Stringifyable, responseToId?: number | null): ManipulablePromise<IncomingMessage | Error>;
+    /**
+     * This is not marked private because other Talker-related classes need access to it,
+     * but your application code should probably avoid calling this method.
+     */
+    nextId(): number;
+    private receiveMessage;
+    /**
+     * Determines whether it is safe and appropriate to parse a postMessage messageEvent
+     * @param source - "source" property from the postMessage event
+     * @param origin - Protocol, host, and port
+     * @param type - Internet Media Type
+     */
+    private isSafeMessage;
+    private handleHandshake;
+    private handleMessage;
+    /**
+     * @param id - Message ID of the waiting promise
+     * @param message - Message that is responding to that ID
+     */
+    private respondToMessage;
+    /**
+     * Send a non-response message to awaiting hooks/callbacks
+     * @param message - Message that arrived
+     */
+    private broadcastMessage;
+    /**
+     * Send a handshake message to the remote window
+     * @param confirmation - Is this a confirmation handshake?
+     */
+    private sendHandshake;
+    /**
+     * Wrapper around window.postMessage to only send if we have the necessary objects
+     */
+    private postMessage;
+    /**
+     * Flushes the internal queue of outgoing messages, sending each one.
+     * Does nothing if Talker has not handshaken with the remote.
+     */
+    private flushQueue;
+}
+export { IncomingMessage, OutgoingMessage };
+export default Talker;