Commit Graph

36702 Commits

Author SHA1 Message Date
Sergey Biryukov
ebf0b9e46e Editor: Define $suffix before using it in _WP_Editors::print_tinymce_scripts().
Props imath.
Fixes #40479. See #35760.
Built from https://develop.svn.wordpress.org/trunk@40477


git-svn-id: http://core.svn.wordpress.org/trunk@40353 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 12:02:46 +00:00
Andrew Ozz
d0e4448257 Editor: Provide API for the editor to be dynamically instantiated via JS. First run.
See: #35760
Built from https://develop.svn.wordpress.org/trunk@40476


git-svn-id: http://core.svn.wordpress.org/trunk@40352 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 02:38:44 +00:00
Pascal Birchler
c58cb3af9e Twenty Seventeen: Bump version and update the changelog.
Updates changelog to link to Codex pages, like other default themes.

Props swissspidy, davidakennedy.
Fixes #40461.

Built from https://develop.svn.wordpress.org/trunk@40472


git-svn-id: http://core.svn.wordpress.org/trunk@40348 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-18 09:14:46 +00:00
Weston Ruter
cb6086ae9b Customize: Use fixed-width illustrative placeholder for hex field in color picker to prevent truncation.
Props stormrockwell, sagarprajapati, Presskopp, afercia, tejas5989, westonruter, mayurk for testing.
Fixes #39096.

Built from https://develop.svn.wordpress.org/trunk@40471


git-svn-id: http://core.svn.wordpress.org/trunk@40347 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-18 00:31:43 +00:00
Pascal Birchler
e5c05e18a1 Twenty Seventeen: Correct heading hierarchy for posts on the front page.
When the posts page is on the front page or within a front page section, the heading hierarchy for the individual post titles needs to be adjusted accordingly.

Props joedolson, celloexpressions, davidakennedy.
Fixes #40264.

Built from https://develop.svn.wordpress.org/trunk@40458


git-svn-id: http://core.svn.wordpress.org/trunk@40334 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-17 10:09:43 +00:00
John Blackbourn
c2d7701a31 Build/Test tools: Reverse the order in which the Travis jobs run.
As a general rule, this means the fastest test jobs now run first because each subsequent version of PHP is faster than the previous. When a committer is patiently waiting for a Travis build to complete, they are at least more likely to see unexpected failures earlier than they otherwise would.

In addition, this updates the JavaScript test job to run on PHP 7.1.

Props netweb

See #39705

Built from https://develop.svn.wordpress.org/trunk@40434


git-svn-id: http://core.svn.wordpress.org/trunk@40332 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-15 17:43:41 +00:00
John Blackbourn
1e9446310a Networks and Sites: Correct a capability check when accessing the Sites -> Add New screen.
Props flixos90

See #39156

Built from https://develop.svn.wordpress.org/trunk@40433


git-svn-id: http://core.svn.wordpress.org/trunk@40331 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-15 17:30:48 +00:00
Sergey Biryukov
7ee5878a9c Docs: Update the length limit in set_site_transient() docs after [34030].
Props lukecavanagh, jdgrimes.
Fixes #40455.
Built from https://develop.svn.wordpress.org/trunk@40432


git-svn-id: http://core.svn.wordpress.org/trunk@40330 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-15 09:28:43 +00:00
Adam Silverstein
9ff1301ae5 Upload: improve legacy SWFUpload event handlers for current jQuery.
Fix an issue where legacy JavaScript for SWFUpload still used jQuery's 
deprecated `live` event which no longer works - switch to using `on`.
This JavaScript is still used by some plugins and themes.

Props MMDeveloper.
Fixes #39886.


Built from https://develop.svn.wordpress.org/trunk@40431


git-svn-id: http://core.svn.wordpress.org/trunk@40329 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-14 16:43:44 +00:00
James Nylen
999c807b88 Media: Default to always showing the "Create Audio/Video Playlist" buttons.
This avoids a couple of expensive queries that attempt to determine whether the media library contains any audio or video items, and also makes the UI for creating playlists more discoverable.

[40382] and [40421] added filters to allow overriding this behavior; this commit changes the default value of the filters to always show these UI buttons and never run the expensive queries.  The old behavior can still be restored using the filters if desired.

Props sboisvert, adamsilverstein, joemcgill, jnylen0.
Fixes #31071.

Built from https://develop.svn.wordpress.org/trunk@40430


git-svn-id: http://core.svn.wordpress.org/trunk@40328 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-14 11:25:43 +00:00
Pascal Birchler
38c4565187 Media: Ensure Crop Image is always visible.
Previously, the crop button in the media modal after uploading header images or similar was hidden and the task could not be completed.

Props karinedo, sagarprajapati, Cybr, mayurk.
Fixes #40152.

Built from https://develop.svn.wordpress.org/trunk@40428


git-svn-id: http://core.svn.wordpress.org/trunk@40326 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-14 09:31:43 +00:00
Sergey Biryukov
9fb2e79b57 Posts, Post Types: In wp_check_post_lock(), check if the user with lock exists and return false otherwise.
Props arshidkv12, 1naveengiri.
Fixes #39888.
Built from https://develop.svn.wordpress.org/trunk@40424


git-svn-id: http://core.svn.wordpress.org/trunk@40322 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-13 23:09:43 +00:00
Sergey Biryukov
bef3ff1377 Posts, Post Types: Improve the docs for wp_check_post_lock() and wp_set_post_lock().
See #39888.
Built from https://develop.svn.wordpress.org/trunk@40423


git-svn-id: http://core.svn.wordpress.org/trunk@40321 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-13 23:02:42 +00:00
Sergey Biryukov
902b91400d Administration: Add "(link opens in a new window)" as a screen reader text for "Preview" link on Edit Post screen.
Props rianrietveld.
Fixes #40185.
Built from https://develop.svn.wordpress.org/trunk@40422


git-svn-id: http://core.svn.wordpress.org/trunk@40320 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-13 22:42:43 +00:00
James Nylen
7d8451ff70 Media: Improve filters that allow overriding slow media queries.
As a follow-up to [40382], this commit makes the following improvements:

- Make the filter names more specific.
- Fix the inline documentation (use `@param` instead of `@return).
- Use `null ===` instead of `is_null` to avoid extra function calls.
- Rename the `$has_audio` and `$has_video` variables now that they actually represent something slightly different.

See #31071.

Built from https://develop.svn.wordpress.org/trunk@40421


git-svn-id: http://core.svn.wordpress.org/trunk@40319 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-13 20:22:44 +00:00
Andrea Fercia
5599164cb7 Toolbar: Reset CSS properties that might be inherited from the active Theme.
The Toolbar search field, when the Toolbar is displayed on the frontend, might
inherit CSS properties from the active Theme stylesheet. For example, this
happened with Twenty Seventeen that sets `display: block;` on all the input
fields. Thus, there's the need to reset some CSS properties to avoid inheritance.

Props @sagarprajapati.
Fixes #40313.

Built from https://develop.svn.wordpress.org/trunk@40418


git-svn-id: http://core.svn.wordpress.org/trunk@40316 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-12 16:12:43 +00:00
John Blackbourn
c26a9a4478 Build/Test tools: Introduce and implement assertNotIXRError() and assertIXRError() assertion methods.
This aids in debugging XMLRPC tests which fail, by exposing the `IXR_Error` error message in the assertion failure message.

Fixes #40423

Built from https://develop.svn.wordpress.org/trunk@40417


git-svn-id: http://core.svn.wordpress.org/trunk@40315 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-12 14:59:44 +00:00
John Blackbourn
927bd9aeb8 Build/Test tools: Improve the failure message reported by assertQueryTrue() so it's a little less cryptic.
Fixes #40411

Built from https://develop.svn.wordpress.org/trunk@40416


git-svn-id: http://core.svn.wordpress.org/trunk@40314 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-11 10:48:43 +00:00
Felix Arntz
45b64ba2ff Multisite: Replace unnecessary is_super_admin() check when setting up the initial network.
When using `is_super_admin()` in a non-multisite environment, the function is supposed to check for administrator capabilities. The process of querying all users and filtering them with that function can be optimized by only querying users with the administrator role instead.

Fixes #40406. See #37616.

Built from https://develop.svn.wordpress.org/trunk@40406


git-svn-id: http://core.svn.wordpress.org/trunk@40313 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-10 22:00:43 +00:00
Weston Ruter
226e34effc Customize: Verify availability of history.replaceState (in IE9) before attempting to populate changeset_uuid parameter.
Props westonruter, timmydcrawford for testing.
Amends [39686].
See #39227.
Fixes #40405.

Built from https://develop.svn.wordpress.org/trunk@40405


git-svn-id: http://core.svn.wordpress.org/trunk@40312 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-10 21:15:41 +00:00
Felix Arntz
9354ea683f Multisite: Introduce an upgrade_network capability.
Prior to this change, a mix of `is_super_admin()` calls and `manage_network` capability checks was used to determine whether the current user could upgrade the network. With this changeset a dedicated capability is introduced that allows more granular handling.

Props dhanendran for the original patch.
Fixes #39205. See #37616.

Built from https://develop.svn.wordpress.org/trunk@40404


git-svn-id: http://core.svn.wordpress.org/trunk@40311 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-10 21:11:43 +00:00
Joe McGill
4e1f22bf78 Fix broken audio/video functions when sanitizing ID3 data
This fixes a bug where running `wp_kses_post_deep()` on all the ID3
tag data corrupted blob data.

Fixes #40075, #40085.

Built from https://develop.svn.wordpress.org/trunk@40400


git-svn-id: http://core.svn.wordpress.org/trunk@40307 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-10 01:28:47 +00:00
Andrew Ozz
eab25ea270 TinyMCE: update the tests for version 4.5.6. Remove default plugins tests, it is quite pointless to keep repeating them at this point.
See #40305.

Built from https://develop.svn.wordpress.org/trunk@40399


git-svn-id: http://core.svn.wordpress.org/trunk@40306 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-09 23:11:42 +00:00
Andrew Ozz
23850c3952 Update TinyMCE to 4.5.6. Has many improvements and bug fixes. Changelog: https://github.com/tinymce/tinymce/blob/4.5.x/changelog.txt.
Fixes #40305 for trunk.
Built from https://develop.svn.wordpress.org/trunk@40398


git-svn-id: http://core.svn.wordpress.org/trunk@40305 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-09 23:01:43 +00:00
Joe McGill
efab6e06ca Media: Improve handling of non-image files in wp_get_image_mime.
This prevents non-image fileypes from returning a mime type of
"application/octet-stream" when `exif_imagetype()` returns `false`.

Props blobfolio.
Fixes #40017.

Built from https://develop.svn.wordpress.org/trunk@40397


git-svn-id: http://core.svn.wordpress.org/trunk@40304 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-09 22:44:43 +00:00
Weston Ruter
57b386ef1e Customize: Fix behavior of clicking Delete Menu link and keep available nav menu items panel open when doing bulk deletion.
Props maguiar, adamsilverstein for testing.
Amends [39548].
Fixes #38953.

Built from https://develop.svn.wordpress.org/trunk@40396


git-svn-id: http://core.svn.wordpress.org/trunk@40303 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 20:22:43 +00:00
Weston Ruter
ad293eade7 Customize: Auto-expand a widget area section when expanding the Widgets panel if there is only one registered sidebar and it is active.
Introduces `WP_Customize_Panel::$auto_expand_sole_section` property which allows panels to opt-in to the behavior, which the Widgets panel is made to do by default.

Props delawski, westonruter, melchoyce.
Fixes #37471.

Built from https://develop.svn.wordpress.org/trunk@40395


git-svn-id: http://core.svn.wordpress.org/trunk@40302 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 19:27:40 +00:00
Pascal Birchler
8473f9ef66 Upgrade/Install: Introduce wp_disallow_file_mods() helper function.
This is a wrapper around the checks for the `DISALLOW_FILE_MODS` constant to determine whether file modifications are disallowed.

Props MaximeCulea.
Fixes #38673.

Built from https://develop.svn.wordpress.org/trunk@40394


git-svn-id: http://core.svn.wordpress.org/trunk@40301 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 14:36:50 +00:00
John Blackbourn
0c2338fab2 Networks and Sites: Align the display of site statuses on the Sites listing screen with those of posts on the Posts listing screen.
Fixes #40290

Built from https://develop.svn.wordpress.org/trunk@40393


git-svn-id: http://core.svn.wordpress.org/trunk@40300 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 13:51:43 +00:00
John Blackbourn
6ba598cc34 Build/Test tools: Remove occurrences of create_function() in unit tests.
Props desrosj

See #37082

Built from https://develop.svn.wordpress.org/trunk@40392


git-svn-id: http://core.svn.wordpress.org/trunk@40299 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 13:38:41 +00:00
Felix Arntz
ce6153d52a Multisite: Partially revert [40295].
[40295] removed the restriction of a minimum amount of characters for new site names, which could cause unexpected behavior. That changeset is reverted here with the exception of the removal of the `is_super_admin()` check, which can safely be omitted. A new filter for the minimum site name length will be introduced later to be able to modify that behavior.

See #39676, #37616.

Built from https://develop.svn.wordpress.org/trunk@40391


git-svn-id: http://core.svn.wordpress.org/trunk@40298 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 13:15:42 +00:00
Felix Arntz
00e8704288 Multisite: Introduce a setup_network capability for setting up multisite.
`setup_network` is a new meta capability that brings more granular control over the permissions to setup a multisite environment. In a non-multisite environment it falls back to `manage_options` while in a multisite it falls back to `manage_network_options`. The introduction of this capability furthermore allows replacing an `is_super_admin()` check.

Props ashokkumar24 for the original patch.
Fixes #39206. See #37616.

Built from https://develop.svn.wordpress.org/trunk@40390


git-svn-id: http://core.svn.wordpress.org/trunk@40297 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-07 12:53:45 +00:00
Pascal Birchler
72c19648bc Load: Only load PasswordHash class when needed.
This reverts [38371] which loaded `class-phpass.php` early in `wp-settings.php` and in turn caused backward compatibility problems.

Props DavidAnderson, ketuchetan.
Fixes #39445.

Built from https://develop.svn.wordpress.org/trunk@40387


git-svn-id: http://core.svn.wordpress.org/trunk@40294 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-06 18:01:42 +00:00
James Nylen
5584f22d53 Media: Add filters to allow overriding slow media queries.
There are a couple of queries that do a full table scan of attachment posts to support features of the media library.  Pending a more complete solution, allow overriding these queries via filters.

Props sboisvert, jnylen0.
See #31071.

Built from https://develop.svn.wordpress.org/trunk@40382


git-svn-id: http://core.svn.wordpress.org/trunk@40289 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-06 03:57:45 +00:00
Weston Ruter
19d960e257 Customize: Fix HTTPS navigation of site in preview on IE11.
Accounts for HTTPS links (port 443) where [40318] only accounted for HTTP links (port 80). Addresses issue in IE11 where the default port number is unexpectedly included on `link.host` for links dynamically created by scripts.

Props mattwiebe.
Amends [40318], [38890].
See #38409.
Fixes #40198.

Built from https://develop.svn.wordpress.org/trunk@40381


git-svn-id: http://core.svn.wordpress.org/trunk@40288 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-06 00:32:44 +00:00
Weston Ruter
162785c65f Customize: Fix reversal of nav menu item's type and object properties for page stub added in customizer.
Amends [38906].
See #38164.
Fixes #40277.

Built from https://develop.svn.wordpress.org/trunk@40380


git-svn-id: http://core.svn.wordpress.org/trunk@40287 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 23:29:42 +00:00
Weston Ruter
5f771393a3 Customize: Use is_header_video_active() as active_callback for external_header_video control instead of is_front_page().
Use the same `active_callback` as was supplied previously for the `header_video` control in [39240] where this instance was missed.

Amends [39240].
Props pratikshrestha.
See #38738.
Fixes #40308.

Built from https://develop.svn.wordpress.org/trunk@40379


git-svn-id: http://core.svn.wordpress.org/trunk@40286 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 23:10:42 +00:00
James Nylen
99b13790c2 REST API: Allow fetching multiple users at once via the slug parameter.
This matches similar changes previously made for posts (#38579) and terms (#40027).

Props curdin, MatheusGimenez.
Fixes #40213.

Built from https://develop.svn.wordpress.org/trunk@40378


git-svn-id: http://core.svn.wordpress.org/trunk@40285 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 22:25:43 +00:00
James Nylen
1979815aef REST API: Update description string of terms endpoint slug parameter.
As a follow-up to [40376], and for consistency with the posts endpoint, we should indicate in the description that the `slug` filter parameter can accept multiple values.

See #40027.

Built from https://develop.svn.wordpress.org/trunk@40377


git-svn-id: http://core.svn.wordpress.org/trunk@40284 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 21:08:43 +00:00
James Nylen
9f2d94b211 REST API: Allow fetching multiple terms at once via the slug parameter.
This matches a similar change previously made for posts (#38579) and an upcoming change for users (#40213).

Props wonderboymusic, MatheusGimenez, curdin.
Fixes #40027.

Built from https://develop.svn.wordpress.org/trunk@40376


git-svn-id: http://core.svn.wordpress.org/trunk@40283 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 20:25:46 +00:00
Felix Arntz
a212ed8e25 Multisite: Fix wp_get_sites() to return an unlimited amount of sites when passing a falsy limit argument.
Props iandunn for the original patch.
Fixes #39879. See #35791.

Built from https://develop.svn.wordpress.org/trunk@40372


git-svn-id: http://core.svn.wordpress.org/trunk@40279 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 02:18:43 +00:00
Felix Arntz
58b810e9eb Multisite: Add $network_id parameter to get_user_count().
The `get_user_count()` function returns the number of active users on a network, which is stored in a `user_count` network option. Since `get_network_option()` supports retrieving options from other networks than the current one, `get_user_count()` can now make use of that feature.

Fixes #37866.

Built from https://develop.svn.wordpress.org/trunk@40371


git-svn-id: http://core.svn.wordpress.org/trunk@40278 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 02:18:00 +00:00
Felix Arntz
924e31583c Multisite: Support the $network_id parameter of get_blog_count().
The `get_blog_count()` function used to support an `$id` parameter for the network ID prior to WordPress 3.1. This parameter has not been used since the introduction of `get_site_option()` and was later deprecated in [25113]. With `get_network_option()` however it is possible to support the parameter again, now properly renamed as `$network_id`.

A unit test has for the parameter has been added as well. Another unit test in the same class was adjusted to work properly with multiple networks existing.

Fixes #37865.

Built from https://develop.svn.wordpress.org/trunk@40370


git-svn-id: http://core.svn.wordpress.org/trunk@40277 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 02:17:18 +00:00
Pascal Birchler
e1a08e199a Customize: User get_user_locale() in customizer body class.
Otherwise CSS specific to the site's locale would be applied, even though the customizer is displayed in the user's locale.

See #29783.
Fixes #40271.

Built from https://develop.svn.wordpress.org/trunk@40368


git-svn-id: http://core.svn.wordpress.org/trunk@40275 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-05 02:16:02 +00:00
Adam Silverstein
789f141045 REST API: JS Client - Enable connecting to multiple endpoints.
Enable connecting to multiple wp-api `endpoints`. Calling `wp.api.init` with a new `apiRoot` will parse the new endpoint's schema and store a new set of models and collections. A collection of connected endpoints is stored in `wp.api.endpoints`.

Props lucasstark.
Fixes #39683.


Built from https://develop.svn.wordpress.org/trunk@40364


git-svn-id: http://core.svn.wordpress.org/trunk@40271 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-02 19:41:41 +00:00
Sergey Biryukov
41666b5e0c Mail: Use correct capitalization for PHPMailer methods in wp_mail().
Props Soean, reidbusi.
Fixes #39702.
Built from https://develop.svn.wordpress.org/trunk@40363


git-svn-id: http://core.svn.wordpress.org/trunk@40270 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-01 14:34:43 +00:00
Sergey Biryukov
33dc58fe70 I18N: Remove an extra slash between .mo file path and name in load_muplugin_textdomain().
Props nsundberg.
Fixes #39168.
Built from https://develop.svn.wordpress.org/trunk@40362


git-svn-id: http://core.svn.wordpress.org/trunk@40269 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-01 14:26:40 +00:00
Sergey Biryukov
f884d7973b Posts, Post Types: Introduce post_date_column_status filter for post status text in list tables' Date column.
Props pbearne.
Fixes #39545.
Built from https://develop.svn.wordpress.org/trunk@40361


git-svn-id: http://core.svn.wordpress.org/trunk@40268 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-01 14:07:44 +00:00
Sergey Biryukov
2b48ca580e Embeds: Change the embed_autourls option filter from default_option_* to pre_option_* to avoid a DB query.
The option was removed from core in [21998], but still might be used by plugins.

Props dlh.
Fixes #38924.
Built from https://develop.svn.wordpress.org/trunk@40360


git-svn-id: http://core.svn.wordpress.org/trunk@40267 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-01 13:56:43 +00:00
Andrea Fercia
822b8afb50 Accessibility: Improve the Media Library inline uploader accessibility.
For better accessibility, expandable panels should be placed immediately after
the control that expands them. This change moves the Media Library inline
uploader up, right after the "Add New" button, also introducing consistency with
the Plugin and Theme uploaders.
Adds a proper ARIA role on the button and an `aria-expanded` attribute to give
better feedback to assistive technologies users about the uploader's expanded state.
Improves the focus handling when closing the uploader, improves the focus style
and color contrast ratio of the uploader "close" button.

Props mantismamita, karmatosed, adamsilverstein, afercia.
Fixes #37188.

Built from https://develop.svn.wordpress.org/trunk@40359


git-svn-id: http://core.svn.wordpress.org/trunk@40266 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-03-31 17:38:43 +00:00