The Customizer and Theme Installer open in full overlays that need to receive
focus. Also, keyboard navigation should be constrained within the overlays. Using
CSS `visibility` to hide all the content except the overlays, makes them the only
available and focusable content and allows browsers to handle focus natively.
See #29158.
Fixes#33228, #27705.
Built from https://develop.svn.wordpress.org/trunk@38520
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* Eliminates the server mutating the a `WP_Error`'s `$error_data` to merge-in a `$from_server` flag (since it may not be an array to begin with). Instead it defers to the client to add a `fromServer` param on any `Notification` instances created from server-sent errors.
* Ensures that notifications will be re-rendered if a notification's `message` changes but the `data` and `type` remain the same.
* Adds explicit support for the `Notification` class to have a `setting` property, ensuring that the property is set whereas previously it was dropped.
Fixes#37890.
Props westonruter, dlh.
Built from https://develop.svn.wordpress.org/trunk@38513
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WordPress maintains the minified version of jquery.masonry.js since there is no official build, however it has been excluded from grunt's minification process. This adds a minification task to grunt, adds it to the precommit hook for JS, minifies the file, and bumps the version on jquery.masonry.min.js. The change to the non minified version was introduced in [38261].
Fixes#37720. See #37666.
Built from https://develop.svn.wordpress.org/trunk@38276
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[38179] added support for the rainbow flag to core, but platform compatibility is a bit strange, because the flag was defined out of sync with the usual Unicode release cycle. For example Android N supports all Unicode 9.0 emoji, but doesn't support the rainbow flag thus the rainbow flag isn't rendered.
The Twemoji loader already has an exception for flags - it'll load if the browser supports everything but flags, and then only replace flag emoji, leaving everything else as native rendering. To provide a seamless experience for all flags the loader now uses the rainbow flag to test flag support.
Props pento.
See #37543.
Fixes#37566.
Built from https://develop.svn.wordpress.org/trunk@38194
git-svn-id: http://core.svn.wordpress.org/trunk@38135 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twemoji recently added images for the Rainbow and Pirate flags, and the latest iOS 10 beta added support for the Rainbow flag. Never let it be said that WordPress is at anything less than the cutting edge of emoji research and development.
Props ocean90 for the code review.
See #37543.
Built from https://develop.svn.wordpress.org/trunk@38179
git-svn-id: http://core.svn.wordpress.org/trunk@38120 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Selective refresh will not be available for widgets when they lack these params, so previewing will fallback to full page refreshes. Sidebars registered as such should be rare so this accounts for an edge case.
Fixes#37478.
Built from https://develop.svn.wordpress.org/trunk@38166
git-svn-id: http://core.svn.wordpress.org/trunk@38107 1a063a9b-81f0-0310-95a4-ce76da25c4cd
- Add the `wpview-wrap` class and pass third param to the getNodes() callback for back-compat.
- Attach the mutation observer that resizes a view iframe inside the iframe to minimize memory use/leaks.
- Remove the `wp-mce-view-unbind` event. It has never been particularly reliable and now it doesn't fire when the user deletes a view by typing or pasting over it.
- Restore changing of a view iframe body classes when the editor body classes change.
Props iseulde, azaozz.
Fixes#36434.
Built from https://develop.svn.wordpress.org/trunk@38158
git-svn-id: http://core.svn.wordpress.org/trunk@38099 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Previously, changing the post thumbnail of a published post in the edit screen
would immediately apply the change, rather than waiting for the post to be
saved before applying the update. This could lead to someone unintentionally
editing the post thumbnail on a published post, and made it impossible to
preview changes to post thumbnails on published posts before saving the change.
This introduces a new Ajax handler, `wp_ajax_get_post_thumbnail_html()` to
retrieve the HTML for the post thumbnail meta box without updating the post
meta value for `_thumbnail_id`. It also allows post thumbnail changes to be
previewed by passing the `_thumbnail_id` as a query variable to the preview
screen and adding a new filter, `_wp_preview_post_thumbnail_filter()`, which
gets applied to `get_post_metadata` during the post preview process.
Props flixos90.
Fixes#12922.
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git-svn-id: http://core.svn.wordpress.org/trunk@38059 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This is a follow up to [38065] to ensure that `wp.html.string()` always
converts empty `alt` attributes to `alt=""` rather than returning HTML using
empty attribute notation, like `alt`. This allows screen readers to ignore
images with empty `alt` attributes, rather than reading out the URL string.
Additionally this completely removes the logic in `wp.html.string()` for
converting blank attributes to empty attribute notation since empty attribute
notation is generally meant to denote a boolean value, e.g.,
`checked` == `checked="checked"`, which doesn't apply in this context because
boolean attributes must be omitted in order to represent a `false` value.
See: https://www.w3.org/TR/html5/infrastructure.html#boolean-attributes
Props adamsilverstein, afineman, joemcgill.
Fixes#36735.
Built from https://develop.svn.wordpress.org/trunk@38116
git-svn-id: http://core.svn.wordpress.org/trunk@38057 1a063a9b-81f0-0310-95a4-ce76da25c4cd
While messages passed to `wp.speak.a11y()` should preferably be meaningful,
short, and carefully crafted case by case, this will ensure any HTML tags will
be stripped out from the message string.
Props adamsilverstein.
Fixes#37382.
Built from https://develop.svn.wordpress.org/trunk@38115
git-svn-id: http://core.svn.wordpress.org/trunk@38056 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This includes a new test in the emoji loader, to see if the browser supports rendering Unicode 9.0 emoji, as well as an update to `twemoji.js`, to load Unicode 9.0 twemoji images.
The default CDN location for loading Twemoji images has changed, moving to a versioned subdirectory. This allows updates without needing to purge the CDN.
Fixes#37361.
Built from https://develop.svn.wordpress.org/trunk@38087
git-svn-id: http://core.svn.wordpress.org/trunk@38028 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Previously, when inserting an image from a URL, leaving the `alt`
field blank in the media modal would result in an image being
inserted into the editor without an `alt` attribute, rather than
an empty `alt`. This happened because the `props.type` would not
get set in `wp.media.string.props()` — because `attachment` is
undefined in this case — causing the image fallbacks to get
skipped.
This fixes the issue by explicitly setting `props.type` to 'image'
in `wp.media.string.image()` before filling out the rest of the
properties.
Props ambrosey, dabnpits.
Fixes#36735.
Built from https://develop.svn.wordpress.org/trunk@38065
git-svn-id: http://core.svn.wordpress.org/trunk@38006 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This changes the binding of event listeners in the Attachments Browser
to use `on` instead of `listenTo` for the `attachment:keydown:arrow` and
`attachment:details:shift-tab` events. The existing listeners broke
when we upgraded Backbone in [36546].
Props adamsilverstein.
Fixes#36900.
Built from https://develop.svn.wordpress.org/trunk@37755
git-svn-id: http://core.svn.wordpress.org/trunk@37720 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When the featured image takes longer to load, the browser might not know its exact dimensions yet and therefore sends an incorrect document height to the embedding site.
By sending the document's height again after the featured image has been loaded, we ensure that the iframe doesn't get cut off.
Fixes#35657.
Built from https://develop.svn.wordpress.org/trunk@37745
git-svn-id: http://core.svn.wordpress.org/trunk@37710 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When Firefox repaints some elements, NVDA may announce "alert" even when there's
no actual message dispatched to the live region. The NVDA implementation differs
from other screen readers and is currently under discussion. To avoid a subpar
user experience better to remove the roles since they're basically redundant.
Fixes#36289.
Built from https://develop.svn.wordpress.org/trunk@37734
git-svn-id: http://core.svn.wordpress.org/trunk@37699 1a063a9b-81f0-0310-95a4-ce76da25c4cd
