| Commit message (Collapse) | Author | Age | Files | Lines |
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* Remove unnecessary variable from ActionCable.createWebSocketURL
* Improve ActionCable test by creating the Consumer before reassigning URL
With this change, the test now actually verifies that the Consumer's url
property changes dynamically (from testURL to `${testURL}foo`).
* Fix alphabetization of ActionCable exports
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* Failing test case
* feat: Dynamic Url Generation
Change createWebSocketURL to be a closure that allows url to be evaluated at the time the webSocket is established
* refactor: createWebSocketURL to Consumer, remove need for closure
Move initial call to createWebSocketURL in createConsumer
* docs: Add documentation for dynamic url and string args to createConsumer
Co-Authored-By: rmacklin <rmacklin@users.noreply.github.com>
[Ryan Castner, rmacklin]
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Allow createWebSocketURL fn to accept a function to generate the websocket URL rather than a string.
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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
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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.
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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
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Karma and Rollup (#34440)
* Rename .coffee files in ActionCable test suite in prep for decaffeination
* Decaffeinate ActionCable tests
* Replace Blade with Karma and Rollup to run ActionCable JS tests
- Add karma and qunit devDependencies
- Add test script to ActionCable package
- Use rollup to bundle ActionCable tests
- Use karma as the ActionCable JS test runner
* Replace vendored mock-socket with package devDependency in ActionCable
* Move ActionCable yarn install to TravisCI before_install config
* Clean up decaffeinated ActionCable tests to use consistent formatting
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This FIXME belongs to a code example that was imported from the
internet. As we aren't going to do anything about it, I prefer to remove
it so it stops from appearing on searches.
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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.
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[Javan Makhmali, Jon Moss]
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