Following [39272], this uses the `header_video_settings` filter to modify
the default video header control markup and adds theme specific styles
for the play/pause button.
Props melchoyce, laurelfulford, joemcgill, davidakennedy, bradyvercher.
Fixes#38697.
Built from https://develop.svn.wordpress.org/trunk@39273
git-svn-id: http://core.svn.wordpress.org/trunk@39213 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This adds play/pause controls to video headers, along with voice
assistance, using `wp.a11y.speak`, to make custom video headers more
accessible. To make styling the play/pause button easier for themes,
CSS has been omitted from the default implementation.
This also includes a refactor of the `wp.customHeader` code to introduce
a `BaseHandler` class, which can be extended by plugins and themes to modify
or enhance the default video handlers.
Props davidakennedy, afercia, bradyvercher, joemcgill, adamsilverstein, rianrietveld.
Fixes#38678.
Built from https://develop.svn.wordpress.org/trunk@39272
git-svn-id: http://core.svn.wordpress.org/trunk@39212 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Some widgets that require more configuration are not included, such as RSS and Custom Menu. Tag Cloud is also not included because fresh sites do not have any tags to display.
Also adds a search widget to a Twenty Seventeen footer widget area.
see #38615.
Built from https://develop.svn.wordpress.org/trunk@39261
git-svn-id: http://core.svn.wordpress.org/trunk@39201 1a063a9b-81f0-0310-95a4-ce76da25c4cd
With [38951] the support for custom page templates has been extended to all post
types. By making the visible meta box titles real labels, accessibility improves
for all users and form fields have meaningful labels.
Fixes#38790.
Built from https://develop.svn.wordpress.org/trunk@39247
git-svn-id: http://core.svn.wordpress.org/trunk@39187 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This adds a new filter, `fallback_intermediate_image_sizes`, which
can be used to modify the array of image sizes created for previewing
PDFs in the media library and checks for the existence of sizes before
processing any image representations of a PDF.
Fixes#38594.
Built from https://develop.svn.wordpress.org/trunk@39246
git-svn-id: http://core.svn.wordpress.org/trunk@39186 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Ensure that starter content can apply from theme B after previewing starter content in theme A.
* Introduce new `starter_content` flag in changeset setting params which is used to capture whether a value is starter content and thus can be overridden.
* Create changeset up-front with `starter_content` flags instead of waiting for `AUTOSAVE_INTERVAL`.
* Eliminate instantiation of settings for widget instances in favor of directly calling `sanitize_widget_js_instance`. This eliminates issues with looking for widgets before they are registered.
* Ensure that non-placeholders (inline arrays instead of string references) can be supplied in starter content.
* Re-use auto-draft posts as starter content across theme switches.
* Introduce `starter_content` param for `WP_Customize_Manager::save_changeset_post()` which is `false` except when starter content is being loaded on a `fresh_site`.
See #38114.
Fixes#38541.
Built from https://develop.svn.wordpress.org/trunk@39241
git-svn-id: http://core.svn.wordpress.org/trunk@39181 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Adds a callback for determining when video headers should be displayed in themes supporting custom headers. By default, video headers are only displayed on the front page of a site.
Theme authors may set a custom callback by passing `'video-active-callback' => 'mytheme_video_active_callback'` as an argument. The default callback is `is_front_page()`.
This introduces the new function `is_header_video_active()` - returns `true` on pages that should display video headers. The return value can be filtered using the new filter of the same name.
Props flixos90, bradyvercher, peterwilsoncc, joemcgill.
Fixes#38738.
Built from https://develop.svn.wordpress.org/trunk@39240
git-svn-id: http://core.svn.wordpress.org/trunk@39180 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Prevents post type templates ignoring post types due to invalid characters. Each entry in the `Template Post Type` comment is run through `sanitize_key()` to match the sanitisation used by `register_post_type()`.
Fixes#38766.
Built from https://develop.svn.wordpress.org/trunk@39236
git-svn-id: http://core.svn.wordpress.org/trunk@39176 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Sometimes, a language file may not exist in exactly the format or location that `get_available_languages()` expects it to be in - for sites with this level of customisation, they need to be able to add their own language files to the list of those available.
Props yoavf.
Fixes#38788.
Built from https://develop.svn.wordpress.org/trunk@39235
git-svn-id: http://core.svn.wordpress.org/trunk@39175 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`get_available_languages()` is only designed to work with translations for core. Using it for plugins/themes means unnecessary `strpos()` checks and incomplete results for plugins/themes whose names are beginning with `admin-` or `ms-`.
Props swissspidy, ocean90.
Fixes#38590.
Built from https://develop.svn.wordpress.org/trunk@39230
git-svn-id: http://core.svn.wordpress.org/trunk@39170 1a063a9b-81f0-0310-95a4-ce76da25c4cd
* Use `postMessage` transport for header image settings by default when video headers are supported, and thus `the_custom_header_markup()` will necessarily be used (and thus a selective refresh partial will be available).
* Ensure that `the_custom_header_markup()` always outputs a container element in the customizer preview even if the header is empty.
* Ensure that edit shortcut appearing for custom header does not get positioned off-screen.
Props bradyvercher, westonruter.
See #38639.
Fixes#38737.
Built from https://develop.svn.wordpress.org/trunk@39227
git-svn-id: http://core.svn.wordpress.org/trunk@39167 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When a page is scrolled, the top nav menu become fixed. Depending on the page content this caused issue where focused links or buttons may be hidden behind the nav menu.
Props afercia, davidakennedy, Fencer04
Fixes#38476
Built from https://develop.svn.wordpress.org/trunk@39225
git-svn-id: http://core.svn.wordpress.org/trunk@39165 1a063a9b-81f0-0310-95a4-ce76da25c4cd
