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* Remove explicit `document` receiver from add/removeEventListener callsRichard Macklin2019-01-151-2/+2
| | | | | | | | | | | | | | | | | This allows ActionCable to be used in a web worker, where the `document` global is undefined. Previously, attempting to use ActionCable inside a web worker would result in this exception after you try to open a connection: ``` ReferenceError: document is not defined ``` The visibilitychange event won't ever get triggered in a worker, so adding the listener is effectively a no-op there. But the listener is mainly a convenience, rather than a critical piece of the javascript interface, so using ActionCable in a worker will still work. (And you could listen for visibilitychange yourself in a window script, then tell the worker to reconnect if you still want that behavior.)
* Replace `window` references in ActionCable with `self`Richard Macklin2019-01-141-2/+2
| | | | | | | | | | | | | | Before this change, attempting to use ActionCable inside a web worker would result in an exception being thrown: ``` ReferenceError: window is not defined ``` By replacing the `window` reference with `self`, which is available in both a window context and a worker context, we can avoid this error. Ref: https://developer.mozilla.org/en-US/docs/Web/API/Window/self
* Simplify `this.isActive() && this.webSocket` into `this.isActive()`Richard Macklin2019-01-141-1/+1
| | | | | | | | | in Connection#close. We can do this because `isActive()` can only return `true` if `this.webSocket` is truthy. (We can't have an active connection without having instantiated a WebSocket. This is confirmed in the code: Connection#isActive calls Connection#isState which calls Connection#getState, which checks if `this.webSocket` is truthy and returns `null` otherwise.)
* Simplify ActionCable.getConfig, Connection#getProtocol, and Connection#closeRichard Macklin2019-01-141-4/+8
| | | | by relying on the implicit undefined return value
* Simplify ActionCable.createConsumer by using default argumentRichard Macklin2019-01-141-5/+2
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* Stop trying to reconnect on unauthorized cable connectionsMick Staugaard2018-12-051-1/+13
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* Replace reference to WebSocket global with ActionCable.adapters.WebSocketRichard Macklin2018-12-011-2/+2
| | | | | | | | | | The WebSocket dependency of ActionCable.Connection was made configurable in 66901c1849efae74c8a58fe0cb36afd487c067cc However, the reference here in Connection#getState was not updated to use the configurable property. This change remedies that and adds a test to verify it. Additionally, it backfills a test to ensure that Connection#open uses the configurable property.
* Remove circular dependency warnings in ActionCable javascript and publish ↵rmacklin2018-12-011-200/+203
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | source modules with fine-grained exports (#34370) * Replace several ActionCable.* references with finer-grained imports This reduces the number of circular dependencies among the module imports from 4: ``` (!) Circular dependency: app/javascript/action_cable/index.js -> app/javascript/action_cable/connection.js -> app/javascript/action_cable/index.js (!) Circular dependency: app/javascript/action_cable/index.js -> app/javascript/action_cable/connection_monitor.js -> app/javascript/action_cable/index.js (!) Circular dependency: app/javascript/action_cable/index.js -> app/javascript/action_cable/consumer.js -> app/javascript/action_cable/index.js (!) Circular dependency: app/javascript/action_cable/index.js -> app/javascript/action_cable/subscriptions.js -> app/javascript/action_cable/index.js ``` to 2: ``` (!) Circular dependency: app/javascript/action_cable/index.js -> app/javascript/action_cable/connection.js -> app/javascript/action_cable/index.js (!) Circular dependency: app/javascript/action_cable/index.js -> app/javascript/action_cable/connection.js -> app/javascript/action_cable/connection_monitor.js -> app/javascript/action_cable/index.js ``` * Remove tests that only test javascript object property assignment These tests really only assert that you can assign a property to the ActionCable global object. That's true for pretty much any object in javascript (it would only be false if the object has been frozen, or has explicitly set some properties to be nonconfigurable). * Refactor ActionCable to provide individual named exports By providing individual named exports rather than a default export which is an object with all of those properties, we enable applications to only import the functions they need: any unused functions will be removed via tree shaking. Additionally, this restructuring removes the remaining circular dependencies by extracting the separate adapters and logger modules, so there are now no warnings when compiling the ActionCable bundle. Note: This produces two small breaking API changes: - The `ActionCable.WebSocket` getter and setter would be moved to `ActionCable.adapters.WebSocket`. If a user is currently configuring this, when upgrading they'd need to either add a delegated getter/setter themselves, or change it like this: ```diff - ActionCable.WebSocket = MyWebSocket + ActionCable.adapters.WebSocket = MyWebSocket ``` Applications which don't change the WebSocket adapter would not need any changes for this when upgrading. - Similarly, the `ActionCable.logger` getter and setter would be moved to `ActionCable.adapters.logger`. If a user is currently configuring this, when upgrading they'd need to either add a delegated getter/setter themselves, or change it like this: ```diff - ActionCable.logger = myLogger + ActionCable.adapters.logger = myLogger ``` Applications which don't change the logger would not need any changes for this when upgrading. These two aspects of the public API have to change because there's no way to export a property setter for `WebSocket` (or `logger`) such that this: ```js import ActionCable from "actioncable" ActionCable.WebSocket = MyWebSocket ``` would actually update `adapters.WebSocket`. (We can only offer that if we have two separate source files like if `index.js` uses `import * as ActionCable from "./action_cable" and then exports a wrapper which has delegated getters and setters for those properties.) This API change is very minor - it should be easy for applications to add the `adapters.` prefix in their assignments or to patch in delegated setters. And especially because most applications in the wild are not ever changing the default value of `ActionCable.WebSocket` or `ActionCable.logger` (because the default values are perfect), this API breakage is worth the tree-shaking benefits we gain. * Include source code in published actioncable npm package This allows actioncable users to ship smaller javascript bundles to visitors using modern browsers, as demonstrated in this repository: https://github.com/rmacklin/actioncable-es2015-build-example In that example, the bundle shrinks by 2.8K (25.2%) when you simply change the actioncable import to point to the untranspiled src. If you go a step further, like this: ``` diff --git a/app/scripts/main.js b/app/scripts/main.js index 17bc031..1a2b2e0 100644 --- a/app/scripts/main.js +++ b/app/scripts/main.js @@ -1,6 +1,6 @@ -import ActionCable from 'actioncable'; +import * as ActionCable from 'actioncable'; let cable = ActionCable.createConsumer('wss://cable.example.com'); cable.subscriptions.create('AppearanceChannel', { ``` then the bundle shrinks by 3.6K (31.7%)! In addition to allowing smaller bundles for those who ship untranspiled code to modern browsers, including the source code in the published package can be useful in other ways: 1. Users can import individual modules rather than the whole library 2. As a result of (1), users can also monkey patch parts of actioncable by importing the relevant module, modifying the exported object, and then importing the rest of actioncable (which would then use the patched object). Note: This is the same enhancement that we made to activestorage in c0368ad090b79c19300a4aa133bb188b2d9ab611 * Remove unused commonjs & resolve plugins from ActionCable rollup config These were added when we copied the rollup config from ActiveStorage, but ActionCable does not have any commonjs dependencies (it doesn't have any external dependencies at all), so these plugins are unnecessary here * Change ActionCable.startDebugging() -> ActionCable.logger.enabled=true and ActionCable.stopDebugging() -> ActionCable.logger.enabled=false This API is simpler and more clearly describes what it does * Change Travis configuration to run yarn install at the root for ActionCable builds This is necessary now that the repository is using Yarn Workspaces
* Allow patching polling interval logarithmic multiplierHusam Bilal2018-11-141-3/+4
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* Convert ActionCable javascript to ES2015 modules with modern build environmentRichard Macklin2018-11-021-0/+475
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We've replaced the sprockets `//= require` directives with ES2015 imports. As a result, the ActionCable javascript can now be compiled with rollup (like ActiveStorage already is). - Rename action_cable/index.js.erb -> action_cable/index.js - Add rake task to generate a javascript module of the ActionCable::INTERNAL ruby hash This will allow us to get rid of ERB from the actioncable javascript, since it is only used to interpolate ActionCable::INTERNAL.to_json. - Import INTERNAL directly in ActionCable Connection module This is necessary to remove a load-order dependency conflict in the rollup-compiled build. Using ActionCable.INTERNAL would result in a runtime error: ``` TypeError: Cannot read property 'INTERNAL' of undefined ``` because ActionCable.INTERNAL is not set before the Connection module is executed. All other ActionCable.* references are executed inside of the body of a function, so there is no load-order dependency there. - Add eslint and eslint-plugin-import devDependencies to actioncable These will be used to add a linting setup to actioncable like the one in activestorage. - Add .eslintrc to actioncable This lint configuration was copied from activestorage - Add lint script to actioncable This is the same as the lint script in activestorage - Add babel-core, babel-plugin-external-helpers, and babel-preset-env devDependencies to actioncable These will be used to add ES2015 transpilation support to actioncable like we have in activestorage. - Add .babelrc to actioncable This configuration was copied from activestorage - Enable loose mode in ActionCable's babel config This generates a smaller bundle when compiled - Add rollup devDependencies to actioncable These will be used to add a modern build pipeline to actioncable like the one in activestorage. - Add rollup config to actioncable This is essentially the same as the rollup config from activestorage - Add prebuild and build scripts to actioncable package These scripts were copied from activestorage - Invoke code generation task as part of actioncable's prebuild script This will guarantee that the action_cable/internal.js module is available at build time (which is important, because two other modules now depend on it). - Update actioncable package to reference the rollup-compiled files Now that we have a fully functional rollup pipeline in actioncable, we can use the compiled output in our npm package. - Remove build section from ActionCable blade config Now that rollup is responsible for building ActionCable, we can remove that responsibility from Blade. - Remove assets:compile and assets:verify tasks from ActionCable Now that we've added a compiled ActionCable bundle to version control, we don't need to compile and verify it at publish-time. (We're following the pattern set in ActiveStorage.) - Include compiled ActionCable javascript bundle in published gem This is necessary to maintain support for depending on the ActionCable javascript through the Sprockets asset pipeline. - Add compiled ActionCable bundle to version control This mirrors what we do in ActiveStorage, and allows ActionCable to continue to be consumed via the sprockets-based asset pipeline when using a git source instead of a published version of the gem.
* Move actioncable javascript to app/javascript and change .coffee -> .jsRichard Macklin2018-11-026-433/+0
| | | | | | | | | | | | | | | | | | | | | - Rename action_cable/*.coffee -> *.js - Move app/assets/javascripts/* -> app/javascript/* - Rename action_cable.js.erb -> action_cable/index.js.erb Renaming the extension to .js is in preparation for converting these files from coffeescript to ES2015. Moving the files to app/javascript and putting the entry point in index.js.erb changes the structure of ActionCable's javascript to match the structure of ActiveStorage's javascript. (We are doing the file moving and renaming in a separate commit to ensure that the git history of the files will be preserved - i.e. git will track these as file renames rather than unrelated file additions/deletions. In particular, git blame will still trace back to the original authorship.)
* ActionCable should not raise when a connection is already openDuncan Grazier2017-01-061-1/+1
| | | | | | | | | | | ActionCable was throwing a "Existing connection must be closed before opening" exception which was being picked up as a production issue in our error monitoring software. Since this happens pretty often on any device that allows the browser to sleep (mobile) this error was getting triggered often. This change removes the exception, but keeps logging the occurrence. We now return `false` to let the caller now that `open` failed.
* Add configuration for `WebSocket` and `logger`Jon Moss2016-05-312-2/+4
| | | | [Javan Makhmali, Jon Moss]
* Build action_cable.js with BladeJavan Makhmali2016-05-241-6/+1
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* Publish Action Cable to NPM when we release.Jon Moss2016-05-111-0/+6
| | | | Signed-off-by: Jeremy Daer <jeremydaer@gmail.com>
* Cable typo: isSupportedProtocol -> isProtocolSupportedJeremy Daer2016-04-051-1/+1
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* Merge pull request #24224 from danielrhodes/actioncable-websocket-protocolsJeremy Daer2016-04-053-16/+50
|\ | | | | | | ActionCable protocol negotiation
| * Added protocol negotiationDaniel Rhodes2016-04-053-16/+50
| | | | | | | | | | | | | | | | | | This is primarily for backwards compatibility for when or if the protocol is changed in future versions. If the server fails to respond with an acceptable protocol, the client disconnects and disables the monitor.
* | Fix WebSocket already open log message typoJon Evans2016-03-221-1/+1
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* Return subscription object(s) when updating the collectionJavan Makhmali2016-03-041-3/+4
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* Make sure ActionCable.Subscriptions#create always returns the newly created ↵Pratik Naik2016-03-041-0/+2
| | | | subscription object
* Store reference to Subscriptions instance for convenienceJavan Makhmali2016-03-031-5/+6
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* Implicity add Subscription instance to subscriptions collectionJavan Makhmali2016-03-032-13/+12
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* Share default mount path with client side .jsJavan Makhmali2016-03-031-1/+1
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* Fix location of default mount path valueJavan Makhmali2016-03-031-2/+3
| | | | #getConfig was implmented as general utility for reading action-cable-* meta tags (hence the `name` argument). Introduced in 8b69f1eeba753c38364fb88136b2503480f2de1d.
* Defer starting connection monitor until a connection is openedJavan Makhmali2016-03-033-41/+52
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* Establish WebSocket connection when first subscription is created. Fixes #24026Javan Makhmali2016-03-033-9/+10
| | | | | * More intention revealing than connecting on the first call to Connection#send * Fixes that calls to Connection#send would attempt to open a connection when the WebSocket's state is CONNECTING
* ConnectionMonitor is once again notified of disconnectDaniel Rhodes2016-03-032-0/+2
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* Make ping into a message typeDaniel Rhodes2016-03-013-10/+7
| | | | | | | | This change makes ping into a message type, which makes the whole protocol a lot more consistent. Also fixes hacks on the client side to make this all work.
* Added welcome message type and fix test hacksDaniel Rhodes2016-03-011-0/+2
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* Only open Action Cable connection if data is being sentJon Moss2016-02-241-1/+3
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* Enable Action Cable routes by defaultJon Moss2016-02-241-1/+1
| | | | This also marks Action Cable routes as internal to Rails.
* Fix isAlive condition and add more loggingJavan Makhmali2016-02-231-5/+7
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* ActionCable.logJavan Makhmali2016-02-233-14/+25
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* Uninstall event handlers when replacing WebSocket instanceJavan Makhmali2016-02-231-0/+6
| | | | Ensures we don't get "onclose" events from a previous WebSocket that was in the "closing" state
* Connection#isAliveJavan Makhmali2016-02-231-3/+3
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* Log ConnectionMonitor connectPratik Naik2016-02-231-0/+1
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* Treat 'closing' state as closed.Pratik Naik2016-02-231-3/+6
| | | | | | We are seeing cases where the websockets get stuck in the 'closing' state after a tab has been in background for a while. So lets treat those websockets as closed.
* Add client-side console logging to help debug reconnect issuesJavan Makhmali2016-02-232-1/+15
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* Wrangle the asset build into something that sounds more generalMatthew Draper2016-02-017-2/+1
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* Improvements and reorganization of assetsJon Moss2016-01-307-0/+341
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