Since the state was cloned into an empty object with $.extend, undefined
properties were being deleted from it, not actually preserving those
keys. So:
nextState({hi: undefined, ho: 1}, {ho: 2})
//> {ho: 2}
It seems like a more consistent behavior would be to not lose any own
keys on the state as we do with the updates too, so that:
nextState({hi: undefined, ho: 1}, {ho: 2})
//> {hi: undefined, ho: 2}
Which is what this commit does by not using $.extend to clone the state
and instead just manually copy the keys to the new object, even the
undefined ones.
Change-Id: If4f2a3b0d25bb5ef34cfbc1f2c9c0b5479aeee9b
The preview reducer would treat the LINK_ABANDON_END and
PREVIEW_ABANDON_END actions as the PREVIEW_DWELL action. Fortunately,
this was a NOOP as they would only fall through if the preview was being
dwelled upon.
HT Joaquin Hernandez.
Change-Id: I01ff47de34ac41f1e6aa46aa5baccc2a27013f1b
It would seem that nextState should be $.extend({}, state, updates), but
as it was noted in the commit message that introduced the function
$.extend doesn't copy undefined|null values and that's why we iterate
manually over updates to copy any prop that exists over. That way we can
override properties to null|undefined in the state.
This commit expands the comment to explain so, and why OO.copy couldn't
be used.
Change-Id: If6c7119a4713328bb23c8f77042500510d515049
Action creator changes:
* Make the linkAbandon action creator asynchronous by splitting it into
two distinct actions, LINK_ABANDON_START and _END, the latter of which
is dispatched after a 300 ms delay.
* Introduce the previewDwell and previewAbandon action creators. The
latter is an asynchronous action that mirrors the linkAbandon action.
Reducer changes:
* Make the LINK_DWELL, LINK_ABANDON_END, and PREVIEW_ABANDON_END action
hide a preview, if one has been shown.
* Make the LINK_ABANDON_END action NOOP if:
* The user has interacted with another link, or
* The user is interacting with the preview.
Supporting changes:
* Update the mw.popups.reducers#preview and #renderer unit tests to use
an empty previous state so that the tests are more resilient to
modifications of the state tree.
Change-Id: I2ecf575bbb59bb64772f75da9b5a29c071b46a8d
If the user abandons the link after the API request delay (500 ms) but
before the it resolves (~10e3 ms), then the preview shouldn't be
rendered.
Changes:
* actions: Include the link in the FETCH_START, FETCH_FAILED, and
FETCH_END actions.
* reducers: If the active link has changed, then FETCH_END is a NOOP.
Supporting changes:
* reducers: Signal that a preview should be rendered and shown with
preview.shouldShow.
Change-Id: I3dd1c0c566ec63de515174c14845d7927583ce93
Extract core rendering functionality from the mw.popups.renderer and
mw.popups.renderer.article objects.
For now, render and show the preview when the user dwells on and
abandons a link respectively.
Supporting changes:
* Add mw.popups.wait, which is sugar around window.setTimeout.
* action.response -> action.result in the FETCH_END case of the preview
reducer.
Change-Id: I14b437e7c2f55b988837fcb2800dd61a23c29a01
Supporting changes:
* Remove the preview.previousActiveLink property from the state tree as
it's unnecessary.
Change-Id: I657decf9425a7a9e2b27a798ed60b162569661d8
OO.copy doesn't copy Element instances, whereas $.extend does. However,
OO.copy does copy properties whose values are undefined or null, whereas
$.extend doesn't.
Since the state tree contains an Element instance - the
preview.activeLink property - we need to use $.extend.
Add the nextState helper function which copies the current state tree
with $.extend and mixes in all updates manually.
Change-Id: Ie8edd9fa0cc3a62a792ed60b49288f85b3ca73e9
If the user has abandoned the link or dwelled on a different link, then
don't make the API request.
Changes:
* Fix a bug in the linkDwell reducer where the activeLink was always
being set to undefined.
* Add the private fetch action creator.
* Make the linkDwell action dispatch the result of the fetch action
creator after 500ms.
Supporting changes:
* Make the link* action creators take DOM elements rather than jQuery
instances so that:
1. Testing whether the state tree has changed is an identity
comparison.
2. jQuery instances are constructed only when required.
* Document the ext.popups.Gateway type.
* Document the Redux.Store type.
* Rename the "previews-page-title" data attribute to
"page-previews-title" to avoid confusion.
Change-Id: I0b1cf3337a6f8d6450ad2bd127cb292ebb73af4f
Changes:
* Add sessionToken and pageToken properties to the BOOT action and
update the preview reducer.
Supporting changes:
* Move the mw.popups.createActions to ext.popups/boot.js so that Redux
is used in one file and the actions can be tested in isolation more
easily.
Change-Id: Icd61bf1aeb466899e047432bf9798e2574652830
Reducers as a whole are a WIP, but this implements a baseline from which
to add more.
Changes:
* Create ext.popups.reducers to house all reducers
* Create reducers for preview and renderer state manipulation
* Create rootReducer by combining preview and renderer reducers
* Add QUnit tests for reducers
* Move action types into ext.popups.actionTypes
* Extract rootReducer from boot.js
Change-Id: I8a2296c6846cd4b0552a485e671af1d974944195
