Commit Graph

36424 Commits

Author SHA1 Message Date
John Blackbourn
0371277d5a Build/Test Tools: Replace test skipping with actual assertions when dealing with the DISALLOW_UNFILTERED_HTML, DISALLOW_FILE_MODS, and DISALLOW_FILE_EDIT constants.
If any of these constants are set during testing, they should cause the tests to fail, not to be skipped, otherwise we have a situation where failure conditions are never seen.

See #40533

Built from https://develop.svn.wordpress.org/trunk@40525


git-svn-id: http://core.svn.wordpress.org/trunk@40401 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 20:13:42 +00:00
John Blackbourn
1cbc2c3857 Build/Test Tools: Remove more skipped tests that should actually be failures if their conditions aren't satisfied.
See #40533

Built from https://develop.svn.wordpress.org/trunk@40524


git-svn-id: http://core.svn.wordpress.org/trunk@40400 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 19:43:41 +00:00
John Blackbourn
a0e67d3e16 Build/Test Tools: Remove ancient UT ticket handling.
See #40533

Built from https://develop.svn.wordpress.org/trunk@40523


git-svn-id: http://core.svn.wordpress.org/trunk@40399 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 19:39:43 +00:00
John Blackbourn
f12c419ee3 Build/Test Tools: Add some more tests to the ms-required and ms-excluded groups.
See #40531

Built from https://develop.svn.wordpress.org/trunk@40522


git-svn-id: http://core.svn.wordpress.org/trunk@40398 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 19:22:44 +00:00
John Blackbourn
af6c8d1bc6 Build/Test Tools: Remove a useless test.
See #33898, #40533

Built from https://develop.svn.wordpress.org/trunk@40521


git-svn-id: http://core.svn.wordpress.org/trunk@40397 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 19:10:43 +00:00
John Blackbourn
17b73338f1 Build/Test Tools: Introduce ms-required and ms-excluded groups for tests.
Tests in the `ms-excluded` group are now excluded when running tests with multisite enabled, and tests in the `ms-required` group are excluded when running tests without multisite enabled. The end result is a significantly reduced number of skipped tests polluting PHPUnit's output, which means verbose mode can be used to more easily see which tests are skipped or incomplete, and why.

See #40531

Built from https://develop.svn.wordpress.org/trunk@40520


git-svn-id: http://core.svn.wordpress.org/trunk@40396 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 18:59:41 +00:00
John Blackbourn
ed1d714572 Build/Test Tools: Don't skip tests when php.net or dev.mysql.com are unreachable.
This sort of behaviour subtly hides the fact that these tests will never fail if the URLs where version number information is fetched from go away for one reason or another.

See #40533

Built from https://develop.svn.wordpress.org/trunk@40519


git-svn-id: http://core.svn.wordpress.org/trunk@40395 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 18:45:40 +00:00
John Blackbourn
aa8f871f21 Build/Test Tools: Avoid skipping canonical tests that are connected to open Trac tickets.
This is a remnant of the test suite behaviour before #30284 fixed most of it and makes it far too easy to hide failing tests.

If any tests begin to fail as a result of this change then they should be fixed.

Fixes #40534

Built from https://develop.svn.wordpress.org/trunk@40518


git-svn-id: http://core.svn.wordpress.org/trunk@40394 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 18:26:42 +00:00
John Blackbourn
dd0346b330 Canonical: Don't skip tests if the test data is invalid.
See #40533

Built from https://develop.svn.wordpress.org/trunk@40517


git-svn-id: http://core.svn.wordpress.org/trunk@40393 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 17:30:44 +00:00
John Blackbourn
8d3d439684 Posts, Post Types: Correct the fallback value for the label_count argument of register_post_status().
While using `_n_noop()` here is technically incorrect, it does correct the fallback value as its usage in `translate_nooped_plural()` expects a correctly formatted associative array.

Props xrmx

Fixes #38686

Built from https://develop.svn.wordpress.org/trunk@40516


git-svn-id: http://core.svn.wordpress.org/trunk@40392 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 14:17:42 +00:00
Andrew Ozz
c7058c739d Editor: fix undefined var notice in editor_js() in class-wp-editor.php.
Props littler.chicken.
Fixes #40501, see #35760.
Built from https://develop.svn.wordpress.org/trunk@40515


git-svn-id: http://core.svn.wordpress.org/trunk@40391 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-22 01:12:44 +00:00
Boone Gorges
e45ee36b84 Restore support for taxonomy 'args' override when querying object terms.
[7520] introduced an undocumented feature whereby developers could
register a custom taxonomy with an 'args' parameter, consisting of
an array of config params that, when present, override corresponding
params in the `$args` array passed to `wp_get_object_terms()` when
using that function to query for terms in the specified taxonomy.

The `wp_get_object_terms()` refactor in [38667] failed to respect
this secret covenant, and the current changeset atones for the
transgression.

Props danielbachhuber.
Fixes #40496.
Built from https://develop.svn.wordpress.org/trunk@40513


git-svn-id: http://core.svn.wordpress.org/trunk@40389 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-21 19:14:44 +00:00
Weston Ruter
cc77899e7f Customize: Increase width of controls pane on large monitors to give more room.
Props celloexpressions, timmydcrawford.
Fixes #32296.

Built from https://develop.svn.wordpress.org/trunk@40511


git-svn-id: http://core.svn.wordpress.org/trunk@40387 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-21 05:25:43 +00:00
Weston Ruter
9eb9cc40bd Customize: Fix visibility of "Hide Controls" link in IE.
Amends [39214].
Props timmydcrawford.
See #32296, #38762.
Fixes #40507.

Built from https://develop.svn.wordpress.org/trunk@40510


git-svn-id: http://core.svn.wordpress.org/trunk@40386 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-21 05:16:45 +00:00
Felix Arntz
9c8bf59842 Multisite: Add $network_id parameter to wp_update_network_counts().
After the `$network_id` parameter has been introduced for `wp_update_network_site_counts()` in [40484] and `wp_update_network_user_counts()` in [40485], the new parameter can now also be used on the wrapping function.

Fixes #40386. See #38699.

Built from https://develop.svn.wordpress.org/trunk@40486


git-svn-id: http://core.svn.wordpress.org/trunk@40362 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-20 00:27:42 +00:00
Felix Arntz
79be8dff6d Multisite: Add $network_id parameter to wp_update_network_user_counts().
Using the new parameter, it is now possible to update the user count on a network different from the current one. While the count itself is technically a global user count and not network-wide, it is stored on each individual network, and the new parameter provides more control about where to update the count.

Fixes #40349. See #38699.

Built from https://develop.svn.wordpress.org/trunk@40485


git-svn-id: http://core.svn.wordpress.org/trunk@40361 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-20 00:14:43 +00:00
Felix Arntz
7fa610b34a Multisite: Add $network_id parameter to wp_update_network_site_counts().
Using the new parameter, it is now possible to update the site counts on a network different from the current network.

Props PieWP, johnjamesjacoby.
Fixes #37528. See #38699.

Built from https://develop.svn.wordpress.org/trunk@40484


git-svn-id: http://core.svn.wordpress.org/trunk@40360 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-20 00:00:42 +00:00
Sergey Biryukov
35987df4e4 Docs: Improve @param and @return entries for wp_get_post_categories(), wp_get_post_tags(), and wp_get_post_terms().
Props philipjohn, theMikeD.
Fixes #40481.
Built from https://develop.svn.wordpress.org/trunk@40483


git-svn-id: http://core.svn.wordpress.org/trunk@40359 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 23:08:40 +00:00
Andrew Ozz
c0399b4fde TinyMCE: Fix cursor position after updating a wpview node. Fix hiding the inline toolbar on editor blur.
Props iseulde, azaozz.
Fixes #40480 for trunk.
Built from https://develop.svn.wordpress.org/trunk@40481


git-svn-id: http://core.svn.wordpress.org/trunk@40357 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 22:10:42 +00:00
Andrea Fercia
1d739a0925 Accessibility: Make some Widgets buttons real buttons.
Links used as UI controls that behave like buttons, should be buttons.
- changes the widgets "toggle", "Delete", and "Close" links to buttons
- uses `aria-expanded` to announce the state of the toggle buttons
- increases a bit the clickable area of the toggle
- ensures the "circular focus" doesn't get cut-off in some browsers by centering the toggle arrows
- uses a `<span>` element with an `aria-hidden` attribute to hide CSS generated font icons from assistive technologies
- standardizes on `.toggle-indicator:before` rather than `:after`
- changes two `#f00` reds in `#dc3232`, see #35622

Fixes #31476.

Built from https://develop.svn.wordpress.org/trunk@40480


git-svn-id: http://core.svn.wordpress.org/trunk@40356 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 21:14:44 +00:00
Andrea Fercia
711796d172 Accessibility: Make Safari 10 + VoiceOver announce repeated, identical, wp.a11y.speak() messages.
Safari 10 + VoiceOver don't announce repeated, identical, strings sent to an 
`aria-live` region. Appending a `no-break space` to a repeated message string,
forces them to think the strings are different.

Fixes #36853.

Built from https://develop.svn.wordpress.org/trunk@40479


git-svn-id: http://core.svn.wordpress.org/trunk@40355 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 19:53:42 +00:00
Dominik Schilling
7977451301 Multisite: After [37918] add support for retrieving custom site properties set by the site_details filter.
The behaviour was previously possible with the `blog_details` filter and `get_blog_details()` function. The former is deprecated since [38936].
This change adjusts the magic methods of `WP_Site` to also check if `$key` exists in `WP_Site::get_details()`. 

Fixes #40458.
Built from https://develop.svn.wordpress.org/trunk@40478


git-svn-id: http://core.svn.wordpress.org/trunk@40354 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-19 18:52:44 +00:00
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