Commit graph

363 commits

Author SHA1 Message Date
Sam Smith dcf8532cdf Hygiene: Group instrumentation modules
Following on from I4f653bba, since the schema and statsvInstrumentation
modules are similar, let's group/rename them:

  schema -> instrumentation/eventLogging
  statsvInstrumentation -> instrumentation/statsv

Change-Id: Ic59e0da7d4917f6733fd090f15d3c269af863f05
2017-06-20 11:41:37 +01:00
Sam Smith 67eb3b1dcf i13n: Log EL events with mw.track
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
2017-06-17 00:51:32 +00:00
joakin 98d9415361 Hygiene: Rename builder vars on require preview/model
preview/model is just a module/namespace object, not a builder class or
similar.

This patch changes a couple of imports to reference some of the exposed
functions of the preview/model where required.

In a shiny future, this pattern would be:

    const { createModel, createNullModel } =
      require( '../preview/model' )

Bug: T165018
Change-Id: If6ad4611538ca4f24e2443c0c3ed433275e995a6
2017-06-16 14:50:19 +02:00
joakin 010a4d91a6 Hygiene: Simplify gateways
gateway/*/rest were copies of gateway/restProvider just passing
a different provider. Docs were the same, they were untested, and
looking at them they seemed like unnecessary abstraction.

This patch removes the plain vs html structure, and separates gateways
like before, by endpoint.

There is a light utility in gateway/restFormatters.js that adapts the
call from the rest gateway to use formatters.js functions. It needs
testing, that I'll add in the next patch.

The flow for creating a gateway ends up as follows:

1. index.js calls gateway/index#createGateway( mw.config )
2. createGateway chooses based on wgPopupsGateway and invokes
  * mediawiki.js#createMediaWikiApiGateway or
  * rest.js#createRESTBaseGateway w/ restFormatters.js#parsePlainTextResponse or
  * rest.js#createRESTBaseGateway w/ restFormatters.js#parseHTMLResponse

Changes:
* Removed src/gateway/{plain,html}/rest.js
  * Extracted formatter functions to src/gateway/restFormatters.js
* src/gateway/plain/mediawiki.js -> src/gateway/mediawiki.js
         * tests/node-qunit/gateway/plain/mediawiki.test.js ->
           tests/node-qunit/gateway/mediawiki.test.js
* gateway/restProvider{,.test}.js -> gateway/rest{,.test}.js
* Change gateway/index.js#createGateway to properly call the rest
  gateways with the rest formatters

Bug: T165018
Change-Id: Ia75695dfc192aad5bc581a68882514bad6c29646
2017-06-16 14:49:59 +02:00
joakin b12599c871 Hygiene: Move createGateway to gateway/index.js
And add tests, given it is growing in complexity.

Additional changes:
* Interface ext.popups.Gateway -> Gateway in docs

Bug: T165018
Change-Id: I8a12333ad9d14d6a7fbde11afc42f607881e8ea3
2017-06-16 12:46:05 +02:00
joakin 490583bcb9 Hygiene: Capture jQuery at construction
and not from global scope all the time.

Bug: T165018
Change-Id: I90b55a65a7ca25c2998c811a98401feaeced165e
2017-06-15 20:10:08 +02:00
Sam Smith 6159af3151 i13n: Extract experiments module
... from the statsvInstrumentation module so that the bucketing logic
can be shared with other instrumentation modules.

Change-Id: I5732fa539a3911939fa85fa88c102fa8dcfa5613
2017-06-14 11:04:32 -07:00
Piotr Miazga f2fbef6ec7 Implement html/rest.js gateway which handles HTML Restbase responses
Refactor existing Restbase gateway and extract shared logic into
shared Restbase provider. Also introduced new createNullModel()
which defines an empty preview model.

Additionally improve naming in new gateways/formatter so function
names are more explicity.
 * Htmlize() became formatPlainTextExtract() as it should be used
   only with plain text extracts
 * removeEllipsis() became  removeTrailingEllipsis() as it removes
   only trailing ellipsis.
 * src/gateway/index.js defines gateways by configuration name stored
   in extension.json

Bug: T165018
Change-Id: Ibe54dddfc1080e94814d1562d41e85cb6b43bfc1
Depends-On: I4f42c61b155a37c5dd42bc40034583865abd5d7a
2017-06-13 20:19:05 +02:00
Timo Tijhof 4996886eb9 eventLogging: Use base 32 instead of 16 for fnv-encoded hash
Follows-up 79f3b318d0.

Number#toString supports up to Base 32.
Same collision behaviour but with a shorter string.
Typical length with Base 32: 7 (max: 11)
Typical length with Base 16: 9 (max: 14)

Change-Id: I91e91341cbecdec24549ace6a6300550f5b449ee
2017-06-12 21:43:05 +01:00
joakin 38b061a468 Return empty extract if string is blank after formatting
Bug: T167626
Change-Id: Icb89cbe447226850231c3d7d74e61e5f6a5db809
2017-06-12 12:59:31 +02:00
Sam Smith fb8d54c7ce actions/rest: Use DB-key version of title
This reduces the number of 301 Redirect responses when fetching previews
from RESTBase.

Bug: T167633
Change-Id: I830947ab79e72dcc023193412c8d5bcee986e23f
2017-06-12 11:22:55 +01:00
Piotr Miazga ef283c2509 Extract rendering/parsing mediawiki responses into separate class
Page Previews should be able to consume HTML response generated by
MediaWiki. First we need to move out plain text crunching from
renderer.js and model.js. Mediawiki and Restbase gateways will have
to parse/htmlize plaintext into nice HTML by themselves.

Bug: T165018
Change-Id: I5d7e9f610bb809aa9fb035a4a9f96e9e8796c9d8
2017-06-09 18:34:25 +02:00
joakin 002f4c8e0c Use delegated events in container
...instead of 1 event per link

Supporting changes:
* Delegate events on the container when booting up
  * Check eligibility of title on event triggered
  * Pass the title from the event handlers into the actions instead of
    storing it in the dom
* Add title.fromElement as sugar over isvalid(gettitle())
  * Not tested as it is sugar over the other 2 functions
* Fix action tests and integration tests

processLinks to be removed next

Bug: T165572
Change-Id: I4d9837706dc77ec64121ac94410c0d2da83692e4
2017-06-08 12:31:06 -07:00
joakin 356678ffcd Add title#isValid
Which checks if a title is an eligible one for showing previews

Bug: T165572
Change-Id: I5ade3fb84d400293d24de05e10119996e711b41e
2017-06-08 12:29:33 -07:00
Sam Smith 343506bdfb gateway: Fix Accept header sent by rest gateway
... and update the RESTBASE_PROFILE constant to the latest "stable"
profile for the endpoint.

Prior to this change the Accept header sent by the rest gateway was

  application/json; charset=utf-8profile="..."

This was discovered while responding to T166605.

Change-Id: I00f277e724c561634b26c9ab10bd35332c6dba91
2017-06-08 12:19:32 -07:00
joakin ef2f99ef65 Rename getTitle.js to title.js
In order to create a title#shouldShowPreview function next in the
module.

Bug: T165572
Change-Id: I9e59bb0f525d2698f882543ca0d4a1bde6b2d5d2
2017-06-08 12:10:14 +02:00
Sam Smith 98864a7ce3 eventLogging: Add missing properties to "tapped settings cog" event
When there's an interaction, then the "tapped settings cog" event should
have the same properties set as the other interaction-specific events.

This was discovered while QAing T164256.

Bug: T164256
Change-Id: I4749b52656203c7e0c42ae742556ee996eee322a
2017-06-07 10:13:23 +01:00
Sam Smith 66234e021e eventLogging: Add perceivedWait prop to all events
... and the previewType property as well.

Per the Popups schema [0], the "opened" action should have the
perceivedWait and previewType properties set.

Bug: T166323
Change-Id: I957d123434a6b750aff6f5279865321a08367382
2017-05-25 17:00:13 -04:00
Sam Smith 0670597434 doc: Document gateway modules
Additional changes:
* Fix the summary not showing up for the Container interface.

Bug: T158236
Change-Id: I7c5dee1b4525c2db28b89e57604d2d073620293d
2017-05-25 14:34:25 +01:00
Sam Smith e4f4041846 doc: Document statsvInstrumentation module
Bug: T158236
Change-Id: I138a1ef5305c0b49415d5f2a914ba45fd6aa869b
2017-05-24 10:45:49 +01:00
Sam Smith 445318111b doc: Document counts module
Bug: T158236
Change-Id: I27106436e693289aa0c4140cef8e3d6210bcd8fb
2017-05-23 13:26:56 +01:00
Sam Smith 5d9561bc91 doc: Document preview/model module
Changes:
* Assign exports to exports rather than reassigning module.exports so
  that JSDoc can guess inner members.
* Tidy up parameter types with JSDoc's "nullable" syntax.

Bug: T158236
Change-Id: I7261d1bb3924c9f14301490f54d7813dcffc959b
2017-05-23 13:26:56 +01:00
joakin 293d7ebe8d Clear interaction after an event for it is logged in EL
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
2017-05-16 11:25:41 +02:00
Sam Smith cf0ea9db7b actions: Mix title and namespaceID into LINK_DWELL
This fixes a bug in I8a63d82, where the pageTitleHover and
namespaceIdHover properties of EventLogging events weren't being set.

Bug: T164256
Change-Id: Ie2c2d253f6508b89d48129fd17a902e5ded7cad5
2017-05-15 19:02:27 +01:00
Sam Smith 35bf613964 eventLogging: Add missing *Hover properties
Action changes:
* Include the namespace ID in LINK_DWELL.

Reducer changes:
* Add the createEvent helper, which adds the pageTitleHover and
  namespaceIdHover properties in the event.
* Create "dismissed", "dwelledButAbandoned", and "opened" events using
  the createEvent helper.

Additional changes:
* Store the target page's associated mw.Title using jQuery.
* Update the eventLogging reducer's test cases so that all LINK_DWELL
  representations include title and namespaceID attributes.
* Create the createStubTitle factory function, which returns a minimal
  usable mw.Title stub, and use it in the actions and integration test
  cases.

Bug: T164256
Change-Id: I8a63d82a65324680dff9176020a8ea97695428c4
2017-05-13 08:27:58 +01:00
joakin 7bd29bb058 Enable production settings for the production bundle
It enables certain optimizations, see:
* https://webpack.js.org/guides/production-build/

Code is minified by uglifyjs.

Aditional changes:
* Add banner so that sources are not minified by ResourceLoader

Bug: T160061
Change-Id: I50c9148ebf2d860db42a24225bc128bfcfe56927
2017-05-11 10:37:45 +02:00
Sam Smith c44fddf8cd eventLogging: Discard events with duplicate tokens
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
2017-05-10 11:43:05 +01:00
Baha d6424cb59d QA: Test renderer#show
Binding the behavior has been left out as it requires some refactoring.
Ideally, that functionality should be tested via integration tests, which
is already done.

Bug: T133022
Change-Id: If2fd472847eb3557de97c7ec9619e8831e9bda6d
2017-05-09 17:15:01 -04:00
Baha 108f205e12 QA: Test renderer#layoutPreview
Bug: T133022
Change-Id: I7b7aa544b850e5487a621c522b28653db6056633
2017-05-09 17:13:16 -04:00
Sam Smith 2d3f5333b5 eventLogging: Round perceivedWait property
The perceivedWait property, introduced in I3fd253f1, must be an
integer.

Bug: T164256
Change-Id: If19e8694e5ac111af0f27146cf4ac03bd1a6ff82
2017-05-09 19:00:41 +01:00
Sam Smith 35cfc38b0b eventLogging: Add missing perceivedWait property
Per the Popups schema [0], the "dismissed" action expects the
perceivedWait property to be set.

Happily, the time until the preview was shown is already recorded and
used to determine whether or not to create a "dismissed" or
"dwelledButAbandoned" event.

Reducer changes:
* When creating the "dismissed" event, set the perceivedWait property to
  the already accumulated timeToPreviewShow.

[0] https://meta.wikimedia.org/wiki/Schema:Popups

Bug: T164256
Change-Id: I3fd253f1c2ff5fa8e24c9225060d728ffd8dfd27
2017-05-09 06:51:05 +01:00
Baha 6d95bbf630 Refactor and test renderer#createLayout
* Make function dependencies explicit;
* Only pass data that's needed, no more.

Bug: T133022
Change-Id: Ia973bd9636a477a76db907a37e2a0689daf4e3fa
2017-05-05 14:20:46 -04:00
Ed Sanders 81a6d49e99 build: Update eslint to 0.4.0 and make pass
Change-Id: I7d301049f0c91f79e82f996b2dce770840c27e72
2017-05-05 05:43:16 +01:00
Baha 0b169321d8 QA: Test renderer#bindBehavior
Bug: T133022
Change-Id: I3b0b199010f0460d83f80c57e4bab8e3606a4b4f
2017-05-04 15:48:10 -04:00
Sam Smith 742f341e5c Hygiene: Tidy up QUnit references
Since Ieea378c9 all QUnit tests are run in Node.js and not in the
browser. Tidy up references to QUnit inside of the codebase and tooling.

Changes:
* Don't exclude src/processLinks.js in Istanbul code coverage reports.
* Don't test for window.QUnit in createSchema. We no longer run the risk
  of sending beacons while running the QUnit test suite as it's no
  longer run in the browser.

Bug: T160406
Change-Id: Ifb6adb84b8019dd69231b50af00bf978b708fc60
2017-05-04 15:53:44 +01:00
Baha d95badc614 QA: Test renderer#hide
Bug: T133022
Change-Id: I752c4266b6be1909a3265d8292e7c5229e5724fb
2017-05-03 13:26:19 -04:00
Baha eb9ceb6238 QA: Test renderer#createPreview
Bug: T133022
Change-Id: Ied8e798851d5aebf2910aba5866f8a801c20923b
2017-05-03 13:23:43 -04:00
Baha a46a5fc02f QA: Test renderer#createEmptyPreview
Bug: T133022
Change-Id: If93d2c679bd7edcf98946e1cb688bc5c3744f69b
2017-05-03 13:21:24 -04:00
Baha ccca8b7a90 QA: Test renderer#createThumbnailElement
Bug: T133022
Change-Id: I7909c208e3d69b2ee510dcd8bfbcafc0118397ca
2017-05-03 16:25:28 +00:00
Baha 7f89341cc6 QA: Test renderer#getClasses
Bug: T133022
Change-Id: If3b8888a948f6e14d8847fdc1d4ea16e42329bb8
2017-05-03 16:24:18 +00:00
Baha 872691e293 QA: Bring back renderer#renderExtract tests
The tests were removed in Iae0a78d0b8a13353de70794b67387f2c3bab44c6.
The ultimate goal is to refactor the renderer code and make it
testable, but before doing so we need to add tests to cover the existing
code. This will give us confidence that we won’t accidentally break
anything when we refactor.

Some of the tests have been removed as the functionality covered by
those were moved to model.js in I20f29657fcf94101a71ed13c0920508db71292ce.

Bug: T133022
Change-Id: I7b20324dd5fe8a428cdd96959b65bc82d44fb515
2017-05-02 12:09:11 -04:00
Baha 234282d1a2 QA: Test renderer#createPokeyMasks
The ultimate goal is to refactor the renderer code and make it
testable, but before doing so we need to add tests to cover the existing
code. This will give us confidence that we won’t accidentally break
anything when we refactor.

Bug: T133022
Change-Id: I3ecbfb9bb3ac9c63fdd40df502796748c62949fe
2017-05-01 11:00:42 -04:00
Baha 2030cb6b06 QA: Bring back renderer#getClosestYPosition tests
The tests were removed in Iae0a78d0b8a13353de70794b67387f2c3bab44c6.
The ultimate goal is to refactor the renderer code and make it
testable, but before doing so we need to add tests to cover the existing
code. This will give us confidence that we won’t accidentally break
anything when we refactor.

Bug: T133022
Change-Id: I897276a1a953f6be62e4c2d4a24e0f22fc6ef141
2017-05-01 10:56:41 -04:00
joakin 1da916ee73 Tests: Refactor processlinks test
With the final goal to remove the real mw stubs, move the processLinks
tests away from test cases, and split getTitle to be tested standalone.

Supporting changes:
* Move getTitle out to it's own module
  * Will be tested separately in a followup commit
* Remove global declaration of mw.popups.processLinks (not needed any more)

Bug: T160406
Change-Id: Ieebd1257a2476081c67a318d3f05dffa1d3b9bdd
2017-04-28 22:39:49 +01:00
Sam Smith 79f3b318d0 Track and discard duplicate enqueued events
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
2017-04-28 15:12:40 +01:00
Sam Smith 3d0899c0a0 Remove isLoggingEnabled with Null Object pattern
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
2017-04-27 14:29:04 +01:00
Sam Smith 7f91068ecf Don't show preview if user has abandoned link
If the user dwells on a link for long enough, then the gateway makes a
request, which is allowed to complete regardless of whether or not the
response is required.

If the user abandons the link but the request completes before the
abandon completes - currently, ABANDON_END_DELAY is 300 ms - then the
preview will be rendered temporarily.

Fix this by not rendering the preview if the user has started to abandon
the link.

Bug: T163350
Change-Id: I154dde4e3ccaed3d11cb023c85c44451fc0ad957
2017-04-24 15:35:07 +01:00
Sam Smith 5c5872d31f Don't occlude link when preview is above mouse
When the user dwells on a link and there's enough room to display a
preview above it, then the preview should rest atop the link rather than
above the mouse.

Bug: T161366
Change-Id: Ia7266f6e5c272817581bdbcb3710429b266556e4
2017-04-20 16:41:19 +01:00
Sam Smith 8c611d069f actions: Conditionally dispatch ABANDON_*
If the user CmdOrCtrl+Clicks on a link, then the link will remain
focussed. If a preview is shown, clicks another element on the page, and
then there'll be no token to include in ABANDON_* with.

Bug: T162924
Change-Id: Ie2237aa55ea9a11070498b66c73b8bf1898d8d44
2017-04-18 20:03:58 +01:00
Sam Smith 2c171d7f25 reducers: Don't destroy interaction on LINK_CLICK
I09d8776 introduced a bug in the eventLogging reducer where reducing
LINK_CLICK would remove any accumulated interaction state but not close
the interaction.

Update the associated tests so that they correctly test the reduction of
this action.

Bug: T162924
Change-Id: Ia03e719c228ee96f279c1fa89252dc6b6371a8e9
2017-04-18 19:43:31 +01:00
Sam Smith bb43c9c2e6 reducers: Update eventLogging documentation
Bug: T159490
Change-Id: Ica8363ffb166cf4e1583b481a7055f6d1678ccf4
2017-04-17 15:06:54 -07:00
Sam Smith 56aeeccb0d reducers: Make LINK_CLICK finalize but not close
... the interaction.

Following on from Iccba3c4c, LINK_CLICK shouldn't be considered the end
of an interaction because the link or preview can still be abandoned by
the user. Unlike ABANDON_END and LINK_DWELL, therefore, LINK_CLICK
musn't destroy the interaction but indicate that no more events should
be enqueued for the interaction.

More concretely, if the user has clicked the link or the preview, then
a "dwelledButAbandoned" or "dismissed" event shouldn't be logged.

Changes:
* Distinguish between "finalizing" and "closing" an interaction, where
  the latter is the current behavior of ABANDON_END, LINK_DWELL, and
  LINK_CLICK, in the eventLogging reducer and associated tests.
* If the interaction is finalized, then either the "dwelledButAbandoned"
  or "dismissed" events shouldn't be logged.

Bug: T162924
Change-Id: I09d8776da992053f89a77508e29a7cde3cfeeac6
2017-04-17 15:06:00 -07:00
Sam Smith d55e8b9a17 Don't load entire codebase in QUnit tests
As noted in T160406, the only QUnit tests that requires a running
MediaWiki instance is the test for mw.popups.processLinks. The function
itself is isolated from the rest of the codebase.

Now, as noted in T162876#3182198, during boot the
ext.eventLogging.Schema module is loaded asynchronously with
mw.loader.using. Since boot is unconditional and happens ASAP this
happens when the tests are loaded and run.

In the short term this can be avoided by not making the tests depend on
the entire codebase. The long term solution is laid out in T160406.

Supporting changes:
* Bundle assets with webpack@2.4.1.

Bug: T162876
Change-Id: If1ee1853ba7a9b2a66b24bb93b4e6062b92b0dba
2017-04-14 17:59:32 +01:00
Sam Smith 83e32c255d reducers: Make LINK_CLICK finalize interaction
... in the eventLogging reducer.

Like ABANDON_END, the LINK_CLICK should be considered the end of the
interaction in the context of the EventLogging instrumentation, i.e. no
events should be logged after the user clicks the preview or the link.

See T159490#3172692 for additional context.

Bug: T159490
Change-Id: Iccba3c4c2b6121016ff7923c11b1622bc046ad6b
2017-04-12 11:45:04 +01:00
Sam Smith 76b8c18ca5 reducers: Make PREVIEW_SHOW require a token
Like the FETCH_COMPLETE and ABANDON_END actions, the PREVIEW_SHOW action
was delayed but not conditionally reduced. As ABANDON_END is delayed,
there's a potential for a race and if ABANDON_END is reduced before
PREVIEW_SHOW, then there's no interaction to reduce the action into,
which causes an error, e.g. T159490#3165276 and T162373. Making
PREVIEW_SHOW require a token stops the error occurring in this scenario.

An alternative would be to clear the timeout created in
ext.popups.Preview#show in #hide. However, this would be inconsistent
with actions#fetch and actions#abandon.

Bug: T159490
Change-Id: Ibd2c0c6f45e4392582cc6ed08517f6ca1146d57a
2017-04-11 14:06:04 +01:00
Sam Smith b3b746226a Hygiene: DRY up eventLogging reducer
Extract the repeated token testing for the FETCH_COMPLETE and
ABANDON_END actions.

Bug: T159490
Change-Id: Iebb167c4039f1685bb98ded7cbe5bb3ef3275dd7
2017-04-11 14:05:50 +01:00
Sam Smith 77943704f8 actions: Add token to PREVIEW_SHOW
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
2017-04-11 09:26:22 +01:00
Sam Smith 87be4be855 reducers: Reduce FETCH_COMPLETE if token matches
... instead of using the active element.

In the case of the eventLogging reducer, this fixes scenario 4.1 from
T159490#3150331, which was caused by late FETCH_COMPLETE actions being
reduced regardless of whether interaction had been finalised or a new
interaction had started.

Bug: T159490
Change-Id: If9d718625b0302ea2f75a778005643b4eef62bde
2017-04-07 14:06:14 +01:00
Sam Smith d3d9100637 actions: Add token to FETCH_COMPLETE
Bug: T159490
Change-Id: Ic71dd3ce5e7933273f84a9a64d41e7f3a4cb03f4
2017-04-07 14:06:11 +01:00
Sam Smith 52d128863e actions: Correctly delay FETCH_COMPLETE
I496fe317 caused a regression where the FETCH_COMPLETE was delayed for a
total of 650 ms rather than 500 ms. This is evidenced by a 150 ms step
in the median Time To Preview immediately after today's (Thursday, 6th
April) MediaWiki train [0].

[0] https://grafana.wikimedia.org/dashboard/db/reading-web-page-previews?refresh=1m&orgId=1&from=1491505806387&to=1491507027263

Change-Id: Ic31656208671766f2c08cfaf55babba64455a614
2017-04-06 21:17:44 +01:00
Baha 5b613b1698 Disable Previews when Navigation Popups Gadget is enabled
Only showing a preview is disabled, EL and other stuff should work.

Bug: T160081
Change-Id: Ia837816081781dcaea9a8b4c722f8df5b3e3ca03
2017-04-06 13:11:17 -04:00
Baha e3fde6e360 Handle RESTBase 404
Treat these responses not as an API failure. Show a generic
preview whenever the server responds with a 404.

Bug: T160744
Change-Id: Id6169d9d4c7493f5b6511cc78fe65d448cdadc03
2017-04-06 18:03:11 +02:00
jdlrobson f80acb978b renderer: Pass event to behavior for processing
I6d9ff52b introduced a regression where if a logged out user clicks the
settings cog then an error is thrown.

For now, passing the event to the behavior for further processing is
required. However, it's clear that this makes the
ext.Popups.PreviewBehavior abstraction leaky.

Bug: T162324
Change-Id: I9dea04eb7435f9349e60d477f5701ec5dd655ebd
2017-04-06 10:44:37 +01:00
Bartosz Dziewoński 7967ab77ee Properly create the <svg> and <image> elements for thumbnails
We have to be careful about the namespaces here, and then we don't
need the awful `.html( .html() )` hack. (I honestly have no idea
why that even worked for some browsers, it really shouldn't have.
The comment next to it is wrong.)

* Construct the 'svg:svg' element with the right namespace
* Set 'xlink:href' attribute on 'svg:image' element with the right namespace

Doing this correctly makes the thumbnails work in Opera 12, and it also
works as before in (at least) Chromium 57, Firefox 53, IE 11 and Edge.

I can't find out what version of Safari the other hack here was
supposed to apply to, but the code was wrong in both cases, and the
hack was mistakenly also applied to modern Chromium.

Useful resources for dealing with SVG embedded in HTML while scripting:

* http://stackoverflow.com/questions/6701705/programmatically-creating-an-svg-image-element-with-javascript
  * http://jsfiddle.net/UVFBj/8/
* https://www.w3.org/Graphics/SVG/WG/wiki/Href#xlink:href

Bug: T161799
Change-Id: I30b2a1291811296424018e013bd07055ae7551d7
2017-03-31 22:39:28 +02:00
Sam Smith 1e199b67f0 actions: Simplify delaying FETCH_COMPLETE
Require that two promises are resolved (or one is rejected) before the
FETCH_COMPLETE action is dispatched. The first promise represents the
gateway request and the second represents an arbitrarily long delay. If
the first resolves before the second, then there'll be a delay until the
second resolves; whereas if the first rejects, then there's no delay.

Change-Id: I496fe317337745c593594efff26688c46d661bf3
2017-03-30 17:48:58 -07:00
Sam Smith 6042000eb1 actions: Don't mix delay into FETCH_COMPLETE
Mixing in the delay was introduced in If3f1a06f so that the total RTT
for an API request could be calculated. Now that the FETCH_END action is
dispatched when the gateway request ends and not when the preview model
is resolved, this additional information (state) is redundant.

Change-Id: I7e6ffe0945ffedd9425525fa7da855e729d50b77
2017-03-30 17:48:05 -07:00
Sam Smith 3646b04876 actions: Dispatch FETCH_END
... when the gateway request ends, per I62c9cb04.

Change-Id: Ifbed65d6b97877e859e81f256fa44344a64fc64f
2017-03-30 17:47:39 -07:00
Sam Smith 8b311aa159 Hygiene: FETCH_END -> FETCH_COMPLETE
Ideally, the preview model is resolved after 500 ms, regardless of
whether the internal gateway takes 100 or 300 ms. Given this, there's an
important distinction to be made between the "fetch" ending and it
completing and their associated actions.

Changes:
* Dispatch the FETCH_COMPLETE action when the preview model is resolved.
* Update the reducers accordingly.

Change-Id: I62c9cb0430284b76338ea80bd170cac5af4be9d0
2017-03-30 17:47:13 -07:00
Sam Smith da7325a169 changeListeners: Conditionally empty link titles
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
2017-03-30 17:39:39 -07:00
Sam Smith 82648226ef renderer: Bind behavior when preview is shown
Binding the behavior to the preview before it's shown means that the
application will respond to user interactions with the preview even
though it's transparent.

This fixes scenario 4 from T159490.

Bug: T159490
Change-Id: Ia2d06869868d07af60bdeb49d46612a4a0dc02e9
2017-03-30 17:37:58 -07:00
Sam Smith ae9733b2f0 eventLogging: Log abandon event when user dwells
If the user abandons link A (or preview A) and immediately dwells on
link B, then log a "dismissed" or "dwelledButAbandoned" event.

In this context, "immediately" means before the ABANDON_END action is
dispatched, which, currently, is 300 ms after the ABANDON_START action
is dispatched.

Bug: T159490
Change-Id: I49f0f5dfb3e6c08844f1794fee8cb6170e93981b
2017-03-30 17:15:26 -07:00
Sam Smith 90d54eca64 eventLogging: Extract createAbandonEvent function
Reducer changes:
* Add tests for ABANDON_END case.
* Extract the body of the ABANDON_END case into the createAbandonEvent
  helper function.

Additional changes:
* totalInteractionProperty -> totalInteractionTime elsewhere in the same
  file.

Bug: T159490
Change-Id: Ifff34271395f330b83cfe487e84800fe2d6f3811
2017-03-30 17:14:52 -07:00
Sam Smith d6cc8fa7cb eventLogging: SETTINGS_SHOW logs an event
Reducer changes:
* Make the eventLogging reducer queue a "tapped settings cog" event when
  reducing the SETTINGS_SHOW action.

This was discovered while testing I6ce7d72b.

Bug: T159490
Change-Id: I6ce7d72b364d20c71b0e2cfed98e99f7997895e5
2017-03-30 17:14:08 -07:00
Sam Smith 29963edb09 preview: Add click behavior
Like dwelling and abandoning, clicking on a preview is the same as
clicking on a link.

This fixes scenario 3 from T159490.

Bug: T159490
Change-Id: I6d9ff52b62bec93ebfcc9b6d267a46cf961852fb
2017-03-30 17:08:08 -07:00
Sam Smith df7868ea3f eventLogging: Model interactions in EL reducer
For now, mirror the interaction modelling in the preview reducer in the
eventLogging reducer to handle the user either:

* Repeatedly dwelling on and abandoning a link.
* (Repeatedly) moving their mouse between the link and the preview.

This fixes scenarios 1, 2, 5, and the general issue from T159490.

Bug: T159490
Change-Id: Ia771f325e541c107348b16b47c5b786c97847652
2017-03-30 17:03:06 -07:00
Sam Smith 59ea7a3162 actions: Increase API request delay to 150 ms
Step 1 of T161284. Given that the median API response time (as measured
by the client) is ~115 ms [0] and the API response is artificially
delayed so that the preview starts fading in at 500 ms, we can increase
the API request delay to 150 ms without affecting the current UX while
decreasing the number of incidental HTTP requests triggered by the user
glancing their mouse over a link to another page.

[0] https://grafana.wikimedia.org/dashboard/db/reading-web-page-previews

Bug: T161284
Change-Id: I4c4a766467cdb4cd47c4231c1106c35bab67855e
2017-03-29 09:42:38 -07:00
jdlrobson b01e11c1f9 Popups doesn't need to depend on EventLogging
When EventLogging is unavailable do not initialise the EL-related code
or try to send any events.

When EL is enabled for a brand new user we request an additional module
during boot causing an additional HTTP request. Page Previews continues
to boot normally regardless of whether the request fails.

This approach doesn't impact boot or first paint time. Once the module
is loaded once it should be cached locally, subject to the
ResourceLoader's policy. Moreover, the RL will not attempt to load the
module twice so this doesn't impact the performance of other modules.

Bug: T158999
Change-Id: I7ed7f00d52279151ece23e5aced4f2adb0f7fdc3
2017-03-23 18:26:12 +00:00
Piotr Miazga aa81d6aaad Show Page Preview on mouseenter and keyup events
Changes:
 - remove focus events listeners as they are triggered after switching tabs
 - show PagePreview on keyup event

Bug: T158631
Change-Id: I7533f896604e0e0a8ea6e900ae4f7d12b6458836
2017-03-16 21:16:44 +01:00
Sam Smith a5e1cab732 Hygiene: Remove createRootReducer
Redux.combineReducers is equally self-documenting.

Change-Id: I726fbc782fbb59aad0c8dd3c8eb168a302415e6c
2017-03-15 13:23:23 +01:00
Sam Smith c5675842a3 Hygiene: Remove createBoundActions
Redux.bindActionCreators is equally self-documenting.

Change-Id: Ib10023b4d3a4d6dae0a7aca40f04c3f37abf05dd
2017-03-15 13:23:11 +01:00
Sam Smith c10c3c3771 renderer: Remove attributes don't set them to ''
IE doesn't appear to update/redraw the SVG image element when Setting
its clip-path attribute to '', not removing it. This is problematic as
the attribute is always set to a default value (in the createThumbnail
function) before the preview is laid out.

Bug: T160237
Change-Id: I4559ff5018b8f4ecf06f6f5d9462a999d9726b94
2017-03-14 08:46:05 -04:00
Baha 9a94300858 Log events to statsv for monitoring PagePreviews performance
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
2017-03-14 08:51:10 +00:00
Sam Smith 568b7a09a1 rest: Always scale thumbnail's largest dimension
... thumbnails.

A good example of the difference in behaviour of the PageImages API is
here <T156800#3087507>. The API defers to File#transform, which scales
the largest dimension of an image, not always the width, e.g. if an
image is 1000px x 2000px and the request is for a thumbnail "of 1800px",
then the thumbnail will be 900px x 1800px.

Bug: T156800
Change-Id: I64bc2244ee78a594298d8637233b0da1083700eb
2017-03-10 10:44:37 +00:00
Piotr Miazga 5328cf4681 Hygiene: Move EXTRACT_LENGTH to constants
Keep all configuration-like values in one file.
Changes:
 - moved EXTRACT_LENGTH to constants.js file

Change-Id: Ibe5ecfc60f2c09a30a9ecb3586bc5fb6a7365476
2017-03-09 22:08:10 +00:00
joakin eff14acbba Tooling: Use latest stable webpack
Webpack 1.14.0 is an old version, switch to using latest stable which
has better documentation, tree shaking, ES2015 modules and a core team
of contributors with funding. See https://webpack.js.org/

Additional changes:
* Recompile the frontend assets

Change-Id: I2c5940276e99dee104d04c6a0b83d8ab36a99df5
2017-03-08 19:27:40 +01:00
Sam Smith d4caff9774 rest: Don't scale unscalable thumbnails
If the image isn't an SVG then it shouldn't be scaled past its original
dimensions. Handle the case where the requested thumbnail can't be
generated on the server as the original is too small ( < 320px,
currently [0]) in the same way.

Moreover, if the image happens to have the exact dimensions that we're
requesting (300px or 600px wide, currently [1]), then use the original
image to avoid unnecessary work/pressure on caches.

Supporting changes:
* Update the SVG_RESTBASE_RESPONSE fixture to use the extension returned
  by RESTBase (and the PageImages extension) for the thumbnail:
  .svg.png.

[0] https://github.com/wikimedia/restbase/blob/master/v1/summary.yaml#L121
[1] https://github.com/wikimedia/mediawiki-extensions-Popups/blob/master/src/constants.js#L2

Bug: T156800
Change-Id: I5d0aa161e80869e4b4f5425d906d1e753047a3a3
2017-03-08 18:44:23 +01:00
joakin 1b81d0fdfa Bundle dist versions of redux and redux-thunk
Instead of importing the modules from sources (which you should do if
you properly define NODE_ENV and use uglifyjs from webpack) import the
already compiled files on the npm packages.

This results in 5kb less on the compiled bundle.

Change-Id: I83732ea79a59b611c117ddcf4c262948c795f642
2017-03-08 12:41:03 +01:00
joakin 49d4396e7a Hygiene: Remove global variable mw.popups in most places
Now that most unit tests are run in node with common.js for loading
sources there is no reason to keep global variables around exposing all
the sources.

Only exception is the only qunit integration test processLinks.test.js
which still consumes mw.popups.processLinks, which is the only global
variable remaining in the codebase.

Changes:
* Remove references to mw.popups in code comments and reference the JS
  file instead
* Remove popups.js which exposes all common.js modules as global
  variables
* Export mw.popups.processLinks in processLinks.js for testing in
  processLinks.test.js

Change-Id: I91066654b9282f73a80eb1ba5018bd091656c61d
2017-03-06 17:10:35 +01:00
Baha b40a24c15c Allow showing non-free images when using MediaWiki API
We used to query the MediaWiki API to only return non-free images.
This patch allows us to query the API for images with any license.
The RESTBase end point is already returning images with any license.

Bug: T158632
Change-Id: I9ac60b6f74a7f7eb2cb160ee522c2c3a26dd0858
2017-03-06 11:33:17 +00:00
Derk-Jan Hartman b61c1ef993 Correct 1px offset error in SVG mask.
All the other masks use an 8px offset for the triangle. But this
specific mask used 250 - 243 = 7px offset.

Bug: T153840
Change-Id: Ib72842d18bd844ff37509cf5bf1dedd4e0f99dbc
2017-03-03 11:38:40 -05:00
Sam Smith 720cfbdcd7 restbase: Use thumbnail when generating thumbnail
Rather than manipulating the URL of the original image to get the URL of
the appropriately sized thumbnail, manipulate the URL of the thumbnail
image.

While we could manipulate either the thumbnail or original image URL,
there are subtle differences between the two, so manipulating the latter
makes the generateThumbnailData function as simple as possible, e.g. we
don't have to splice in "/thumb" after "/commons".

Also, ensure that the thumbnail's dimensions are scaled appropriately.

Bug: T156800
Change-Id: I6825bad14b1131dc81f23dcf120cf8ffb7d7b4f6
2017-03-01 15:41:50 +00:00
Baha 5d4cc8d15a Allow bucketing anons
* Logged in users bypass bucketing. They keep working as before.
* When Page Previews is configured as a beta feature, logged out users
  won't see the feature.
* If an anonymous user has enabled/disabled the feature using
  the settings cog then they will see or not see the feature
  depending on the value of their setting.
* The other anonymous users are bucketed. By default 90% of these
  users see the feature, the other 10% don't. These numbers can be
  controlled by the config variable `wgPopupsAnonsEnabledSamplingRate`.

Bug: T157700
Change-Id: I5307587b10f4849c4e82d3b064ff759121c2de67
2017-03-01 10:45:32 +00:00
Sam Smith f54f92402c storage: Fix UserSettings#hasIsEnabled
mw.storage#get doesn't take a default value to return if the underlying
storage is disabled or the key is missing. In the former case it'll
return false and in the latter it'll return null, i.e. in neither case
will it return undefined.

Bug: T157700
Change-Id: I3f653c11468e17b64765e85ebb3b8f03e311352a
2017-03-01 10:45:32 +00:00
joakin 82e315b124 Tests: Migrate {integration,actions}.test.js to node qunit
Because of the globals mw.popups.wait usage and mocking in both actions
and integration, they need to be migrated in a single step, fixing them
both to require wait.js and mock using mock-require instead of the
global variable.

Additional changes:
* Fix FIXMEs about actions.js using the global mw.popups.wait instead of
  the require one.
* Fix the unit tests to use require mocking for wait.js instead of
  global variable mocking in both integration and actions tests
* Change tests that use deferreds and promises to be async qunit tests
  (Deferreds are asynchronous with jQuery in node, apparently they
  weren't in the browser)
* Change integration.test.js to use require on Redux and ReduxThunk

Change-Id: I8e3e87b158bd11c9620e77d0a73e611cf9e82183
2017-02-27 18:17:28 +01:00
Sam Smith 938a4b85d4 Hygiene: Remove checkin instrumentation
The "checkin" part of the Popups schema was superseded by the
ReadingDepth schema, the implementation of which is tracked by T155639.

As well as removing all checkin-related code, update the Popups schema
to the latest version - the version that doesn't have the checkin
property.

Bug: T155639
Depends-On: I762ec3fc91decf3cffa869dbd783faf62f01329a
Change-Id: If764917b6e121e1f9db980a4efa30c0f7a166197
2017-02-27 14:48:47 +00:00
joakin 2ca5fed3ee Tests: Migrate changeListeners/render.test.js to node-qunit
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
2017-02-22 12:14:05 +01:00
Piotr Miazga 6a1948d729 Hygiene: Use CommonJS in gateway/rest.js
Changes:
 - removed unnecessary IIFE closure

Change-Id: Ic91c29d9d5e09573145c8667a6a941233b91b3fd
2017-02-21 17:57:08 +00:00
joakin 78cb95cda2 Hygiene: Remove unnecessary IIFE and use proper requires
In index.js. Instead of using the global variable/object popups, require
things from their files so that we can remove the global variables when
we can run qunit tests with commonjs in node.

Change-Id: I85408f01eca27f97cf46b2076176fcc16c037829
2017-02-20 18:39:51 +01:00
joakin f1e6e2bfa1 Hygiene: Remove unnecessary IIFE in gateway/mediawiki.js
Change-Id: If6d76c2915b13f9871dea3b7f33cb74ec5906566
2017-02-20 18:39:49 +01:00
joakin 0260325bb9 Hygiene: Remove unnecessary IIFE in schema.js
Change-Id: Ic152668ff7e4c96fb63934283897a51e81e58dd4
2017-02-20 18:39:47 +01:00
joakin 5fc46b4cdd Hygiene: Remove unnecessary IIFE in renderer.js
Change-Id: I89a1ac2205385db8e2f2c040ac22d2f4de793a18
2017-02-20 18:39:45 +01:00
joakin 2c1a30e35e Hygiene: Remove unnecessary IIFE in processLinks.js
Change-Id: Icd6ab0a9b0a189c19310915cb77f861459aecddf
2017-02-20 18:39:42 +01:00
joakin d54cfc2e42 Hygiene: Remove unnecessary IIFE in previewBehavior.js
Change-Id: I4f6f4094ba545f827dad28e966d69e6ecec3cea2
2017-02-20 18:39:33 +01:00
joakin f2e9654d23 Hygiene: Remove unnecessary IIFE in checkin.js
Change-Id: I84afc09540f24af425e2abd4603115bdf0030aa7
2017-02-17 06:39:25 +01:00
joakin 27d1ad8318 Hygiene: Remove unnecessary IIFE in changeListeners/render.js
Change-Id: Ib313ddd52d59c6422e02d98b67b5b475b35e79b7
2017-02-17 06:39:21 +01:00
joakin dfe44acef2 Hygiene: Remove unnecessary IIFE in changeListeners/linkTitle.js
Change-Id: Ifc882875475d1bd5056879c59314030a6f616daa
2017-02-17 06:39:16 +01:00
joakin 36287477d0 Hygiene: Remove unnecessary IIFE in changeListeners/footerLink.js
Change-Id: Id1535ce6af0d2dda0e58b784180d3d072844daa8
2017-02-17 06:39:10 +01:00
joakin dfb5ed6688 Hygiene: Remove unnecessary IIFE in changeListeners/eventLogging.js
Change-Id: If379092ab5132b47525ba350d6bbb4cee4568a15
2017-02-17 06:39:00 +01:00
joakin 8d22cf248a Hygiene: Remove useless IIFE in settingsDialog.js
Change-Id: I2885e02d0e61f9e98e086ce4399bc9a18517e531
2017-02-17 06:38:55 +01:00
joakin fd91fe7d93 Hygiene: Remove unnecessary IIFE in wait.js
Change-Id: Ia360bbd99b3d657116c0ba11c5acca726e4602a4
2017-02-17 06:38:46 +01:00
joakin dc7b05c27e Hygiene: Remove unnecessary IIFE in actions.js
Change-Id: I6031efbce04d4cd91a37690469d49ffd0372b41c
2017-02-17 06:38:35 +01:00
jdlrobson 6d859a73a3 Resize thumbnails images returned by REST endpoint
This change resizes thumbnails to the appropriate width
based on the value of mw.popups.gateway.THUMBNAIL_SIZE

Tests cover
* When requested thumbnail is < than original size
* When requested thumbnail is > than original size
* When requested thumbnail is an svg and originalimage
smaller than requested thumb size

Bug: T156800
Change-Id: Ib375b97e2bc959e91de5177efc3df1f2ded54a5b
2017-02-16 16:19:14 -08:00
joakin ba4844cdc2 Tooling: Separate built resources from RL resources
In order to automatically verify in CI that the built assets are up to
date with the commited sources, we need to keep the built assets in
a folder separate from the RL assets.

* Rename the compiled assets folder to industry standard `dist`

Change-Id: I8c5898f9bb29fee7164a7038b835a5f7efd33dbc
2017-02-14 18:39:38 +01:00
Renamed from resources/ext.popups/index.js (Browse further)