Under certain conditions upgrades on Windows may fail because `wp_tempnam()` gets called in a loop.
This can happen when `wp_tempnam()` is called with `\.maintenance` for the `$filename` parameter. The function strips the extension, in this case `.maintenance`, which results in an empty filename. Because it's empty, `wp_tempnam()` calls itself with `dirname( '\.maintenance' )`. On *nix systems this would be `"/"` which allows `wp_tempnam()` to fall back on `time()`. But on Windows it's `"\"`.
This change adds the backslash to the list of characters which allow `wp_tempnam()` to fall back on `time()`.
See [32322], [31936].
Fixes#33999.
Built from https://develop.svn.wordpress.org/trunk@38151
git-svn-id: http://core.svn.wordpress.org/trunk@38092 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Update DocBlock to use third-person singular verb and to include a period at the end.
* Use `submit_button()` for the submit button.
* Escape the ID attribute.
* Apply the same to `WP_List_Table::search_box()`.
See #37230.
Built from https://develop.svn.wordpress.org/trunk@38146
git-svn-id: http://core.svn.wordpress.org/trunk@38087 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`$context` is a full path to the directory that is tested for being writable. A path shouldn't be a boolean value.
This also updates `WP_Upgrader_Skin::request_filesystem_credentials()` and `Automatic_Upgrader_Skin::request_filesystem_credentials()` and adds missing docs.
Props DrewAPicture, ocean90.
Fixes#37412.
Built from https://develop.svn.wordpress.org/trunk@38138
git-svn-id: http://core.svn.wordpress.org/trunk@38079 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Rename the `$post_type` parameter to `$box` for clarity and consistency with other meta box functions.
* Make the docs more consistent with `post_format_meta_box()` and other meta box functions.
* Correct type and description for the third argument of `nav_menu_items_{$post_type_name}_recent` filter.
See #37211.
Built from https://develop.svn.wordpress.org/trunk@38129
git-svn-id: http://core.svn.wordpress.org/trunk@38070 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* `preconnect` will be potentially pretty heavy on the CDN. With the Unicode 9.0 emoji update, almost all browsers will trigger the `preconnect`.
* `preconnect` only opens one connection, but `s.w.org` is HTTP/1.1, so the browser will use the preconnected connection for the first emoji, then it has to open new connections for subsequent emoji.
Also use the same URL as we use for the `emoji_svg_url` filter. This will print the hint for the correct CDN in case someone uses a custom CDN.
Props peterwilsoncc.
Fixes#37387.
Built from https://develop.svn.wordpress.org/trunk@38122
git-svn-id: http://core.svn.wordpress.org/trunk@38063 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.
Built from https://develop.svn.wordpress.org/trunk@38118
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
When `IMAGE_EDIT_OVERWRITE` is set to true, edited image files are
supposed to be deleted when an image is restored to the original.
However, when an image was edited more than once, and then restored,
files created during previous edits were left behind.
Fixes this behavior by updating `wp_save_image()` to clean up
leftover images after each edit when `IMAGE_EDIT_OVERWRITE` is true.
Props bradt, chriscct7, joemcgill.
Fixes#32171.
Built from https://develop.svn.wordpress.org/trunk@38113
git-svn-id: http://core.svn.wordpress.org/trunk@38054 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Andrew Ozz
Dominik Schilling
Helen Hou-Sandí
Sergey Biryukov
Drew Jaynes
Joe McGill
Andrea Fercia
Rachel Baker
Mike Schroder
Gary Pendergast
Jeremy Felt