… as well as in one place in production code. The motivation
for this change is to make the code easier and faster to read.
There is a little bit of duplication in the test setup now.
But I would like to argue this is a good thing. The values are
rather trivial. The difference (or absense of a difference) is
much easier to see now.
Change-Id: I9aa95b59f0c45ea7c9257970e2fcdba3a000d234
This patch does nothing but rename a pair of variables:
"prevState/state" becomes "oldState/newState". Reasoning:
1. The abbreviated "prev" is confusing, especially because we
are in a codebase that is all about "previews".
2. We are in a context that is all about a state **change**.
Change listeners get notified about the change from one state
to another. While it would be possible to stick to the already
mentioned "previous/current" terminology, I find the word
"current" confusing. What is "current" in this context? Did
the state already change? Am I notified about a change that is
**going** to happen or already happened? Is this even relevant?
I don't think it is. Therefor "old/new".
Another possibility is "previous/next".
Change-Id: Id886e1a095967fe86fb9021f59e335c62da8994e
The main motivation here is to dramatically reduce the number
of places that use the same property name "enabled" for values
on different objects (e.g. "state", "actions", and "updates"
are all different things) with slightly different meanings. I
tried hard to come up with names that reflect better what each
meaning is.
Bug: T277639
Change-Id: Ie766259793f716262e3d4622ca55156d11f4842c
This reverts commit 6bc2077ed5.
The change causes issues with various popular gadgets on Wikimedia
wikis. The 'title' attributes have been the easiest way to determine
the target pages of links, and many gadgets have come to rely on that.
Bug: T269297
Bug: T269873
Change-Id: I49d315a13c327a1c5af51d3de887c0c17642e9fe
Reduce layout/style thrashing by measuring all required geometries
at event handler, not waiting for delays/redux/style changes.
Use CSS bottom instead of top, to avoid having to measure the popup
before positioning it, if it's placed above the link ("flippedY").
Disable some test cases that relied on implementation detail of using
"top" CSS.
Change-Id: Id0cbf506009b824d0fb6af4d6fe220e2f69aaaad
This is a performance optimization - removing
all the titles when initializing the popup extension
reduces DOM manipulation during hover, removing/reinstating the title
attribute.
When the popup extension is loaded, the default "title" behvior is unnecessary.
Change-Id: I1a85394b6b67eabee50a8d554bfd9b62de2a24d3
Notice how this actually reduces the size of the final, compiled index.js.
It's not much, but still.
One issue I noticed is that the coverage reports for the JS code stopped
working. I have no idea why.
Bug: T208951
Change-Id: I2fe92579574b3b1ba4d2dd064899eee944045a96
I had to disable ESLint to be allowed to upload this patch. It starts
complaining about something in code I did not even touched. The error
message does not make any sense to me (something about globals being
forbidden in code where I can not spot anything that would be remotely
global).
Change-Id: I6d4b178a65126c4b81b87d99142a6cdc845ae5ee
As far as I can see this is not an integration test, because linkTitle.js
does not interact with the document (in contrast to footerLink.js, which
does).
Change-Id: I8b611263020fe597efb63d8a0080b996ffc7dde4
Via jscodeshift:
jscodeshift \
-t jscodeshift-recipes/src/qunit-assert-equal-to-strictEqual.js \
Popups/tests
Also, some very minor manual clean up.
https://github.com/niedzielski/jscodeshift-recipes/blob/5944e50/src/qunit-assert-equal-to-strictEqual.js
Additional change:
* Drop redundant clipPath parameter from createThumbnailElement - this
parameter does not exist in the function signature.
Change-Id: I209ecf2d54b6f5c17767aa2041d8f11cb368a9b5
Replace all test assertions for calledOnce / Twice with callCount.
assert.ok( calledOnce / Twice ) only lets the dev know that a test
fails. assert.strictEqual( callCount, EXPECTATION ) starts the debugging
process when it fails since it provides the difference in the failure
output. strictEqual() was deliberately used since it's a saner default
and the codebase already favors === equivalency checks.
find tests -name \*.js|
xargs -rd\\n sed -ri '
s%ok\(([^,]+)calledOnce%strictEqual(\1callCount, 1%g;
s%ok\(([^,]+)calledTwice%strictEqual(\1callCount, 2%g;
'
Change-Id: I07c3c6d20e07c5b8107583a01d820e3fbd68a4e1
This change updates the schema and begins to log
additional information such as source_namespace, id
and title. This information is provided inside the
boot action.
Additional changes:
* Allow camel case in bundle artifact
Bug: T184793
Bug: T186728
Change-Id: I425ffecc018bef2958d0dfe957a40a065e3e6c56
Pageview is consistent with verbiage used by Research and Analytics
Engineering in their reports and documentation, e.g.
https://wikitech.wikimedia.org/wiki/Analytics/Pageviews.
Bug: T184793
Change-Id: I8ae085b4af85aa72f234f3db27f0cac2c4d014e5
* New action added PREVIEW_SEEN
* The action will be used to signal that a page view needs
to be recorded.
* PREVIEW_SEEN is a delayed action which is triggered
as a side-effect of the previewShow action. It is only dispatched
if the user is still previewing the same card and the page
related to the card has preview type `page`
* The pageview changelistener is added when
$wgPopupsVirtualPageViews is set to true.
* The page view changelistener listens for page views and logs
them using EventLogging when needed using
https://meta.wikimedia.org/wiki/Schema:VirtualPageView
Note:
* Currently if a user has enabled the DNT header, the
event will not be logged. There is ongoing discussion on the
ticket and fixing this will be addressed separately.
* Only title and referrer are logged in the initial version.
The task demands that "namespace" is logged but this information
is not provided by the summary endpoints we use so will need
to be added later (if indeed needed) either via a change to that
endpoint of by using JavaScript to parse the URL.
Bug: T184793
Change-Id: Id1fe34e4bdada3a41f0d888a753af366d4756590
Enforce it with eslint.
Ignore:
* Comment lines with eslint disable directives
* QUnit test lines as they contain long subjects (QUnit.* (only, test,
module, skip, etc)
* Strings, since long strings are used extensively in tests
* Ignore template literals for similar reasons
* Regex literals as they may be too long, but can't be easily
split in several lines
* Long urls
See bug for more general proposal for eslint-wikimedia-config.
Bug: T185295
Change-Id: I3aacaf46e61a4d96547c513073e179ef997deb09
Event timestamp (as reported by `window.performance.now()`) is also sent
along with every action.
Bug: T180036
Change-Id: Ie3a648298005d51b8b4fbaa6a53e78caf50fa2d3
We haven't seen the PP EventLogging instrumentation produce duplicate events
for weeks.
Bug: T172106
Change-Id: I6f3d7c0cdbf23161f63259e4d20d8a710376468b
Why: Because they are the approved standard by TC39 and Ecma for
JavaScript modules.
Changes:
* Wrap mw-node-qunit in run.js to register babel to transpile modules
for node v6
* Change all sources in src/ to use ES modules
* Change constants.js to be able to run without
jQuery.bracketedDevicePixelRatio given ES modules are hoisted to
the top by spec so we can't patch globals before importing it
* Change all tests in tests/node-qunit/ to use ES modules
* Drop usage of mock-require given ES modules are easy to stub with
sinon
Additional changes:
* Rename tests/node-qunit/renderer.js to renderer.test.js to follow
the convention of all the other files
* Make npm run test:node run only .test.js test files so that it
doesn't run the stubs.js or run.js file.
Bug: T171951
Change-Id: I17a0b76041d5e2fd18e2d54950d9d7c0db99a941
We had instrumentation for over 4 weeks and duplicate events rate
was very low. We want to keep stats so we check the duplicate events
rate but there is no need to filter those.
Bug: T167365
Change-Id: I72585beb21e9db589e45eeace657ef25f432abc9
Changes:
- when event doesn't have linkInteractionToken do not check for
duplicated tokens
- hygiene, move event duplication logic into separate functions
for better readability
Bug: T168449
Change-Id: I3ae197567ec9f67e104af109d4f1a1c1a6769d32
Currently, the mw.eventLog.Schema class samples per pageview. However,
we expect that if a user is bucketed for a session, then all
EventLogging events logged during that session are in the sample.
Moreover, loading the class in the way that we did - asynchronously,
using mw.loader#using - introduced an issue where the eventLogging
change listener would subscribe in the next tick of the JavaScript VM's
event loop and miss the "pageLoaded" event being queued (see T167273).
Changes:
* Make the schema module follow the form of the statsvInstrumentation
module, i.e. make it expose the #isEnabled method, and add the
associated getEventLoggingTracker function.
* Update the eventLogging change listener accept the tracker returned by
getEventLoggingTracker.
* Update/fix related JSDoc documentation.
Bug: T167236
Bug: T167273
Change-Id: I4f653bbaf1bbc2c2f70327e338080e17cd3443d4
Given that interactions end up with an event logged, there shouldn't be
a reason to keep an interaction active after it's corresponding final
event has been logged. See Tbayer's state graph.
This patch removes the current interaction if an event with that token
is logged, effectively finalizing it and making it impossible for the
token to be reused from the state tree again.
Additional changes:
* Pass the logged event with the action EVENT_LOGGED so that the reducer
can determine if it needs to do anything else.
* Since the interaction is removed, when undefined, guard against
actions that use state.interaction freely. (Only allow BOOT,
LINK_PREVIEW, and EVENT_LOGGED)
Bug: T161769
Bug: T163198
Change-Id: I99fd5716dc17da32929b6e8ae4aa164f9d84c387
I6a38a261 made the eventLogging change listener count and discard
duplicate events and count duplicate tokens.
While we isolate the issue(s) that lead to duplication (reuse, likely)
of tokens, make the eventLogging change listener discard events with
duplicate tokens as well.
Bug: T161769
Bug: T163198
Change-Id: I0dbb16c37814d39d7aec35c8fb7cc7309704c550
The eventLogging change listener is responsible for ensuring that the
internal state of Page Previews matches its external state (that
perceived by the user and UA). It does this by logging events with
ext.eventLog.Schema#log. This makes it the perfect place to track and
discard duplicate events enqueued by the Page Previews codebase observed
in T161769.
Make the change listener track events that it's logged by storing hashes
of the dynamic parts of them in memory. If the eventLogging change
listener sees the same event more than once, then it discards it and
increments a counter in StatsD.
This behaviour should be enabled for a matter of days as we should see
whether the duplicate events are being enqueued by the Page Previews
codebase immediately.
Bug: T163198
Change-Id: I6a38a2619d777a76dd45eb7300079e1f07b07b12
The statsv change listener depended on both the analytics tracking
function and whether it should log metrics to StatsD. We can simplify
the behaviour of the change listener by passing in a function which
doesn't log metrics to StatsD if such logging is disabled.
The change listener is now more isolated from other components.
Moreover, sharing the analytics tracking function with other components
is simpler as there's no repeated code.
Bug: T163198
Change-Id: Ibf4785fa4c27c1ad4739f02410f57412f56ff481
The setup and teardown hooks on QUnit.module are deprecated on the
latest versions.
See https://api.qunitjs.com/QUnit/module
mw-node-qunit supports them but we shouldn't be using them.
Bug: T160406
Change-Id: I32c07f22d01d16449a6e37f46ff20c577a1f14c6
Mirroring all other actions that are dispatched after some delay, add
the token to the PREVIEW_SHOW action.
Supporting changes:
* Pass the token to ext.popups.Preview#show so that it can be passed to
actions#previewShow.
Bug: T159490
Change-Id: I128fd56e770ed09d5d0dc55db73d11b013049c79
If the user has disabled PP via the settings dialog or they aren't in
the experimental condition, then link titles shouldn't be emptied.
Because this behavior has to respond to the user enabling/disabling PP
within the same page session, change the linkTitle change listener
rather than conditionally registering it.
Bug: T161277
Change-Id: I53c1a1d3e4436e2ffe08da27da388f394f4e8817
For logging to work:
1. $wgWMEStatsdBaseUri needs to point to a valid statsv endpoint,
e.g. 'https://en.wikipedia.org/beacon/statsv'.
2. $wgPopupsStatsvSamplingRate needs to be set. Note that the codebase
already contains the EventLogging functionality, which is configured
separately. Separately configuring different logging mechanisms
allows us to avoid sampling mistakes that may arise while choosing
one or the other. For example, let's say we want to use EventLogging for
10% of users and statsv for 5%. We'd sample all users into two
buckets: 50/50. And then we'd have to set the sampling rates as
20% and 10% respectively, only because of the bucketing above. To avoid
this kind of complications, separate sampling rates are used for each
logging mechanism. This, of course, may result in situations where a
session is logged via both EventLogging and statsv.
3. The WikimediaEvents extension needs to be installed. The extension
adds the `ext.wikimediaEvents` module to the output page. The
logging functionality is delegated to this module.
Notable changes:
* The FETCH_START and FETCH_END actions are converted to a timed action.
* The experiments stub used in tests has been extracted to the stubs
file.
Logged data is visualized at
https://grafana.wikimedia.org/dashboard/db/reading-web-page-previews
Bug: T157111
Change-Id: If3f1a06f1f623e8e625b6c30a48b7f5aa9de24db
The render change listener is hard coupled to the renderer file, so in
order to migrate the test, instead of stubbing a global variable, we had
to either inject the renderer into the change listener factory as done
everywhere else, or mock the require call.
In order to do one thing per commit, we're mocking the require call
here to get the migration done, but added a FIXME to use dependency
injection instead in a future change.
Change-Id: I50f82cdc9664d34b8a8ccc1ff368f7209404159d
Given this is a jsdom environment assertions using jQuery's :visible
have been changed to check the display property for visibility.
See https://github.com/tmpvar/jsdom/issues/1048
Change-Id: Ifad8067c0b50053a94ac977ee1f1f5a3066bfa16
And on the way there actually put it in a changeListeners/ folder and
rename it to eventLogging.test.js
Change-Id: I60685021841b44f606f39b07bf7f5262344262f4
