Commit Graph

35676 Commits

Author SHA1 Message Date
Tammie Lister ae72d78fb6 Twenty Seventeen: Hidden article tags on home page fix
This prevents the issue of hidden article tags on home page.

Props ElectricFeet, iv.dimova. morettigeorgiev, davidakennedy
Fixes #38404

M    twentyseventeen/inc/template-tags.php
M    twentyseventeen/style.css


git-svn-id: https://develop.svn.wordpress.org/trunk@38998 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 21:00:14 +00:00
Andrew Ozz c4145b769e TinyMCE: if the current editor configuration is without toolbars, prevent errors when adding the labels for custom shortcuts.
Fixes #38063.

git-svn-id: https://develop.svn.wordpress.org/trunk@38997 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 20:06:02 +00:00
David A. Kennedy 3cb436603a Twenty Seventeen: Fix broken and crowded pagination navigation on small screens
* Hides page numbers visually at smaller screen sizes.
* Reduced padding around `.wrap` class on smaller screens.
* Fixed issue with the page numbers not displaying the underline on `:hover`. This has been updated in the custom colors files, too.

Props laurelfulford, caspie.

Fixes #38394.


git-svn-id: https://develop.svn.wordpress.org/trunk@38996 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 17:37:50 +00:00
Helen Hou-Sandi 18d1fe4c1d Post-4.7 beta 1 bump.
git-svn-id: https://develop.svn.wordpress.org/trunk@38995 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 04:32:19 +00:00
Weston Ruter e0817ca1f6 Customize: Remove premature (and verbose) check of `fresh_site` option due to database not being ready on multisite.
Fixes regression in [38991].
See #38114.


git-svn-id: https://develop.svn.wordpress.org/trunk@38994 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 03:42:08 +00:00
Weston Ruter e0bc1e0c16 Customize: Ensure that qunit test enters in expected state and tests `wp.customize.dirtyValues` in starter content context.
Fixes regression in [38991].
See #38114.


git-svn-id: https://develop.svn.wordpress.org/trunk@38993 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 03:28:07 +00:00
Helen Hou-Sandi db66c0d7d2 WordPress 4.7 Beta 1.
git-svn-id: https://develop.svn.wordpress.org/trunk@38992 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 03:00:46 +00:00
Weston Ruter 630fd305fc Customize: Introduce starter content and site freshness state.
A theme can opt-in for tailored starter content to apply to the customizer when previewing the theme on a fresh install, when `fresh_site` is at its initial `1` value. Starter content is staged in the customizer and does not go live unless the changes are published. Initial starter content is added to Twenty Seventeen.

* The `fresh_site` flag is cleared when a published post or page is saved, when widgets are modified, or when the customizer state is saved.
* Starter content is registered via `starter-content` theme support, where the argument is an array containing `widgets`, `posts`, `nav_menus`, `options`, and `theme_mods`. Posts/pages in starter content are created with the `auto-draft` status, re-using the page/post stubs feature added to nav menus and the static front page controls.
* A `get_theme_starter_content` filter allows for plugins to extend a theme's starter content.
* Starter content in themes can/should re-use existing starter content items in core by using named placeholders.
* Import theme starter content into customized state when fresh site.
* Prevent original_title differences from causing refreshes if title is present.
* Ensure nav menu item url is set according to object when previewing.
* Make sure initial saved state is false if there are dirty settings without an existing changeset.
* Ensure dirty settings are cleaned upon changeset publishing.

Props helen, westonruter, ocean90.
Fixes #38114, #38533.


git-svn-id: https://develop.svn.wordpress.org/trunk@38991 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 02:56:16 +00:00
Gary Pendergast 76012a9a59 REST API: Revert [38980].
`/users/me` still needs attention, but this change wasn't quite ready.

See #38521.



git-svn-id: https://develop.svn.wordpress.org/trunk@38990 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 02:06:17 +00:00
Joe McGill f43f3c00c2 Customizer: Fix name of a partial in `export_header_video_settings()`
Following [38985], this updates a check for partials being set in
`export_header_video_settings()` to use the correct name.

Props bradyvercher.
See #38172.

git-svn-id: https://develop.svn.wordpress.org/trunk@38989 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-28 01:50:41 +00:00
David A. Kennedy d3328e2925 Twenty Seventeen: Make border colors for panels match WordPress UI
Also, fixes the visibility of the borders for panels after the header videos commit.

Props celloexpressions.

Fixes #38408.
See #38172.


git-svn-id: https://develop.svn.wordpress.org/trunk@38988 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 23:23:45 +00:00
David A. Kennedy 38d8e20540 Twenty Seventeen: Fix issue with missing background color in dark color scheme.
A background color style that was added to the front page during video header implementation did not get included in the `colors-dark.css`, causing a display issue with the dark color scheme.

Props laurelfulford.

See #38172.


git-svn-id: https://develop.svn.wordpress.org/trunk@38987 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 23:00:43 +00:00
David A. Kennedy 42bb3f3789 Twenty Seventeen: Improve user and developer experience with the customizer integration
* Rename customizer JS files to customize-preview.js and customize-controls.js to align with the core file naming and make it clearer where each file runs.
* Only show the colorscheme_hue control when there's a custom color scheme.
* Update preview JS handling for revised front page section handling, see below.
* Remove all references to "Theme Customizer" in code comments. It hasn't been called that since before 4.0.
* Clarify the purpose of the JS files by updated the code comments in the file headers.
* Improve code readability.
* Make the arbitrary number of front page sections filterable, for UI registration and output.
* Rename twentyseventeen_sanitize_layout to twentyseventeen_sanitize_page_layout to be clearer about what it sanitizes in case child themes or plugins consider reusing it.
* Rename page_options setting/control to page_layout as that's more reflective of what that option does; and again, helps for potential extensions.
* Make the page layout option contextual to pages and the sidebar being inactive, as the option only applies when there is no sidebar (per its description).
* Condense options into a single section.
* Add selective refresh for front page sections.
* Locate active_callback functions within customizer.php so that they're easier to find when editing customizer registrations, similarly to sanitize callbacks.
* Adjust the styling for placeholders for panels that aren't active. 
* Ensure that the new visible edit shortcuts don't have any issues.

Props celloexpressions.

Fixes #38426.


git-svn-id: https://develop.svn.wordpress.org/trunk@38986 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 22:08:33 +00:00
Joe McGill 744f87dbb3 Themes: Enable video in custom headers.
This adds the ability for themes to add support for videos in custom headers
by passing `'video' => true` as an argument when adding theme support for
custom headers.

Custom video headers are managed through the “Header Visuals” (i.e. “Header Image”)
panel in the Customizer where you can select a video from the media library or set a
URL to an external video (YouTube for now) for use in custom headers.

This introduces several new functions:

`has_header_video()` – Check whether a header video is set or not.
`get_header_video_url()` – Retrieve header video URL for custom header.
`the_header_video_url()` – Display header video URL.
`get_header_video_settings()` – Retrieve header video settings.
`has_custom_header()` – Check whether a custom header is set or not.
`get_custom_header_markup()` – Retrieve the markup for a custom header.
`the_custom_header_markup()` – Print the markup for a custom header.

And a new file, `wp-includes/js/wp-custom-header.js` that handles loading videos
in custom headers.

This also enables video headers in the Twenty Seventeen and Twenty Fourteen themes.

Props davidakennedy, celloexpressions, bradyvercher, laurelfulford, joemcgill.
Fixes #38172.

git-svn-id: https://develop.svn.wordpress.org/trunk@38985 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 21:50:56 +00:00
Andrea Fercia 6cc9480fd8 Accessibility: Hide the Toolbar sub-menu icons from assistive technologies.
CSS generated content is going to be rendered for speech output more and more in
the next future. When it's not intended to be available for speech output, for
example with font icons, then special care should be used to hide it from
assistive technologies. At the moment, the only reliable way to do this is making 
use of a wrapper element and set `aria-hidden="true"` on it.

Fixes #37513.


git-svn-id: https://develop.svn.wordpress.org/trunk@38984 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 20:52:20 +00:00
Andrea Fercia cc6925d1d5 Accessibility: Remove inappropriate content from the Posts and Edit screens headings.
Props grahamarmfield, SergeyBiryukov, trishasalas, valendesigns, rianrietveld, afercia.

See #26601.


git-svn-id: https://develop.svn.wordpress.org/trunk@38983 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 20:38:09 +00:00
Rachel Baker 3ffefccdf2 REST API: Return `WP_Error` when a client is attempting to update an option with a non-scalar value to `null`.
A `null` value is returned in the response for any option that has a non-scalar value.

To protect clients from accidentally including the `null` values from a response object in a request, we do not allow options with non-scalar values to be updated to `null`. Without this added protection a client could mistakenly delete all options that have non-scalar values from the database.

Props joehoyle, rachelbaker.
Fixes #38527.

git-svn-id: https://develop.svn.wordpress.org/trunk@38982 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 16:07:06 +00:00
Andrea Fercia f6c85e6b72 Accessibility: Improve the Menus post type meta boxes pagination links.
- adds hidden text to the pagination links
- slightly increases the links clickable area
- fixes a JS error when clicking on the current page number
- avoids to generate nested `<div>` elements at each click 

Props xavortm, cwpnolen, afercia.

Fixes #35577.


git-svn-id: https://develop.svn.wordpress.org/trunk@38981 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 15:22:52 +00:00
Rachel Baker 855a29ccbf REST API: Remove the Location header redirect for the /users/me endpoint.
Props youknowriad jnylen0.
Fixes #38521.

git-svn-id: https://develop.svn.wordpress.org/trunk@38980 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 14:36:49 +00:00
Weston Ruter 3dd4e62653 Customize: Add all dynamic settings for nav menus and nav menu items before previewing to ensure new entries (placeholders) will be recognized.
See #30937.


git-svn-id: https://develop.svn.wordpress.org/trunk@38979 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 08:29:45 +00:00
Pascal Birchler 7d09b0bb0d I18N: Apply the `locale` filter when returning early in `get_locale()`.
See [38976].
See #29783.

git-svn-id: https://develop.svn.wordpress.org/trunk@38978 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 06:39:16 +00:00
Weston Ruter 968148ec51 Customize: Check for existence of controls and settings for background properties before attempting to access.
Amends [38948].
See #22058.
Fixes #38523.


git-svn-id: https://develop.svn.wordpress.org/trunk@38977 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 05:01:21 +00:00
Gary Pendergast dcc71eddcd I18N: Fix a PHP fatal when `get_locale()` is called before `$wpdb` is ready.
If WPDB needs to bail early, it loads the translations, which need to load the locale. Without WPDB, we can't get any database options, so can only rely on what's been loaded so far.

Fixes #29783.



git-svn-id: https://develop.svn.wordpress.org/trunk@38976 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 03:42:09 +00:00
Boone Gorges eb9e2b9207 Share fixtures in REST API endpoint tests.
As sparrows' tears shed steadily
Make widest rivers filled,

`setUp()` routines run prodig'ly
Add minutes to a build.

So cull ye fixtures profligate!
Direct thine frugal gaze!

Our savings here - a half-minute -
When multiplied: Amaze!

See #30017.

git-svn-id: https://develop.svn.wordpress.org/trunk@38975 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 02:56:28 +00:00
Boone Gorges 5da7a1dccf REST API: Use `wp_get_object_terms()` when fetching terms for a post object.
The WP-API plugin originally used a custom method for fetching object
terms in a way that supported the object cache and also accepted all
parameters for `get_terms()`. In [38667], the internals of
`wp_get_object_terms()` were modified to use `WP_Term_Query`, thus
delivering in a native fashion the features that the API had
previously achieved bespokely.

Fixes #38504.

git-svn-id: https://develop.svn.wordpress.org/trunk@38974 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 01:41:08 +00:00
Gary Pendergast 3e77cef88a Customize: Remove an unused variable.
The cleanup in [38972] missed a variable that is no longer being used.

Fixes #27403.



git-svn-id: https://develop.svn.wordpress.org/trunk@38973 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-27 00:30:11 +00:00
Weston Ruter d039c9b4b2 Customize: Remove unnecessary code for edit shortcuts which is no longer required due to moving buttons inside of partial placement containers.
Props sirbrillig.
Amends [38967].
See #27403.


git-svn-id: https://develop.svn.wordpress.org/trunk@38972 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 22:37:35 +00:00
Rachel Baker 8c0d5292a2 REST API: Add the `default_comment_status` and `default_ping_status` options to the setting endpoint.
Props joehoyle.
See #38490.

git-svn-id: https://develop.svn.wordpress.org/trunk@38971 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 22:19:08 +00:00
Andrew Ozz 0888864e29 TinyMCE: after chats in #core-editor and #desing on Slack, the decision is to not remove Heading 1 for beta1.
See #38049.

git-svn-id: https://develop.svn.wordpress.org/trunk@38970 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 22:00:07 +00:00
Tammie Lister 0beb2ef213 Twenty Seventeen: Placeholder styling
These were designed but never implemented.

Props melchoyce, davidakennedy
Fixes #38519



git-svn-id: https://develop.svn.wordpress.org/trunk@38969 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 21:55:09 +00:00
Rachel Baker 6e47838053 REST API: Remove experimental `filter` wrapper parameter from the Posts Controller class.
Hiding WP_Query params under the filter key (instead of allowing them to be top-level params) was one of our biggest complaints from users of v1 of our REST API. This walks back the re-introduction of the `filter` param during Beta 15, which introduced an "inconsistent mess" and "exposing WP_Query through filter has and will continue to be difficult to support." See https://github.com/WP-API/WP-API/issues/2799.

Props websupporter, rachelbaker.
Fixes #38378.

git-svn-id: https://develop.svn.wordpress.org/trunk@38968 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 21:36:29 +00:00
Weston Ruter fda4409f40 Customize: Add edit shortcuts in customizer preview to visually expose editable elements and focus on the corresponding controls when clicked.
* Edit shortcuts show initially for a moment and then fade away so as to not get in the way of the preview. 
* Visibility of edit shortcuts is toggled by clicking/touching anywhere inert in the document.
* Implements UI for mobile and touch devices which do not support shift-click.
* Adds `editShortcutVisibility` state.
* Adds new methods to `wp.customize.selectiveRefresh.Partial` for managing edit shortcuts.

Incorporates aspects of the Customize Direct Manipulation feature plugin.

Props sirbrillig, mattwiebe, celloexpressions, melchoyce, westonruter, afercia.
Fixes #27403.


git-svn-id: https://develop.svn.wordpress.org/trunk@38967 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 20:02:51 +00:00
David A. Kennedy 67420e4986 Twenty Seventeen: Implement selective refresh for site title and tagline
Adding the `opacity` property to the site title prevents opacity from changing during selective refreshes in the Customizer preview.

Props celloexpressions.

Fixes #38513.


git-svn-id: https://develop.svn.wordpress.org/trunk@38966 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 18:42:44 +00:00
Andrea Fercia 29e75c5d77 Administration: Better accessibility for the "Post locked" indicator.
- hides the locked icon from assistive technologies
- adds hidden text to indicate the post is locked
- moves the info about who's currently editing to the top of the title table cell

Props mariovalney.
Fixes #38185.


git-svn-id: https://develop.svn.wordpress.org/trunk@38965 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 17:58:34 +00:00
David A. Kennedy 16768b39cf Twenty Seventeen: Fix header height on sub-pages.
Moves `setNavProps` so it's no longer only fired on load when the scroll down arrow is present.

Props laurelfulford.

Fixes #38496.


git-svn-id: https://develop.svn.wordpress.org/trunk@38964 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 17:38:59 +00:00
David A. Kennedy cd910cffdc Twenty Seventeen: Make table styles more consistent
* Removes the left padding on the first cell in a row, and the right padding on the last cell in each row - the padding is still there between cells, so the contents don't meet.
* Does the opposite for RTL, and fixes some spacing issues.
* Updates the editor styles to match.

Props laurelfulford, snacking.

Fixes #38447.


git-svn-id: https://develop.svn.wordpress.org/trunk@38963 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 17:24:06 +00:00
David A. Kennedy 64117bbc6e Twenty Seventeen: Improve front end display in Internet Explorer 8
* Fixes the display issues with the header. The header doesn't look exactly like it does in newer browsers, but it's closer.
* Gets the font sizes a bit more consistent with how it looks like other browsers.
* IE8 doesn't support SVGs, so it's using the fallback styles for some of the icons. The fallbacks are limited to the absolutely necessary icons - so there is one for the submenu dropdown toggle icon, but not for the little 'hamburger' and X that sit in front of the 'menu' button.

Props laurelfulford.

Fixes #38472.


git-svn-id: https://develop.svn.wordpress.org/trunk@38962 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 16:42:10 +00:00
Dominik Schilling (ocean90) 9e3f6d338b I18N: Introduce a locale-switching function.
With the introduction of user-specific languages in [38705] it's necessary to be able to switch translations on the fly. For example emails should be sent in the language of the recipient and not the one of the current user.

This introduces a new `WP_Locale_Switcher` class which is used for switching locales and translations. It holds the stack of locales whenever `switch_to_locale( $locale )` is called. With `restore_previous_locale()` you can restore the previous locale. `restore_current_locale()` empties the stack and sets the locale back to the initial value.

`switch_to_locale()` is added to most of core's email functions, either with the value of `get_locale()` (site language) or `get_user_locale()` (user language with fallback to site language).

Props yoavf, tfrommen, swissspidy, pbearne, ocean90.
See #29783.
Fixes #26511.

git-svn-id: https://develop.svn.wordpress.org/trunk@38961 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 15:35:58 +00:00
Boone Gorges a6a15b1819 REST API: Use term-specific caps for permission checks in term update and delete endpoints.
See #38505.

git-svn-id: https://develop.svn.wordpress.org/trunk@38960 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 14:51:54 +00:00
Sergey Biryukov 509a314de8 Comments: In `comment_form()`, bail early if comments for the post are closed.
Props jipmoors.
Fixes #38514.

git-svn-id: https://develop.svn.wordpress.org/trunk@38959 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 14:47:09 +00:00
John Blackbourn 573912fcfd Administration: Standardise the docblocks for the `handle_bulk_actions-*` filters.
Props ericlewis, Veraxus
Fixes #16031


git-svn-id: https://develop.svn.wordpress.org/trunk@38958 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 14:44:57 +00:00
John Blackbourn df8b6cf282 Administration: Switch to `handle_network_bulk_actions-{$screen}` for the bulk listing screen actions in the network admin area.
Props ericlewis, Veraxus
See #16031


git-svn-id: https://develop.svn.wordpress.org/trunk@38957 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 14:36:06 +00:00
John Blackbourn 0dff84ad23 Formatting: Don't overwrite the status header for Ajax responses that use output buffering or otherwise set their headers early.
Fixes #35666


git-svn-id: https://develop.svn.wordpress.org/trunk@38956 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 14:31:33 +00:00
Dominik Schilling (ocean90) 368d6ba190 I18N: Add `$user_id` argument to `get_user_locale()`.
This allows to retrieve the locale of any user with the additional fallback to the site locale.

Fixes #38512.
See #29783, #26511.

git-svn-id: https://develop.svn.wordpress.org/trunk@38955 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 14:14:44 +00:00
Rachel Baker 3e3ac4d727 REST API: Add constructor to the `WP_REST_Settings_Controller` class.
Provides consistency with the other API endpoint controller classes.

Props Soean.
Fixes #38429.

git-svn-id: https://develop.svn.wordpress.org/trunk@38954 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 13:44:37 +00:00
Sergey Biryukov 4f033e5487 I18N: Allow for WordPress Plugin Directory URL in plugin details modal to be localized.
Props Soean.
Fixes #38495. See #37501.

git-svn-id: https://develop.svn.wordpress.org/trunk@38953 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 12:16:14 +00:00
Dominik Schilling (ocean90) 36e260f1b5 About Page: Use `get_user_language()` for the video subtitles.
Rename `$locale` to `$lang_code` to avoid stomping of the global `$locale`.

See #38485.

git-svn-id: https://develop.svn.wordpress.org/trunk@38952 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 12:10:35 +00:00
Pascal Birchler a9516abb54 Posts, Post Types: Add support for post type templates.
WordPress has supported custom page templates for over 12 years, allowing developers to create various layouts for specific pages.
While this feature is very helpful, it has always been limited to the 'page' post type and not was not available to other post types.

By opening up the page template functionality to all post types, we continue to improve the template hierarchy's flexibility.

In addition to the `Template Name` file header, the post types supported by a template can be specified using `Template Post Type: post, foo, bar`.
When at least one template exists for a post type, the 'Post Attributes' meta box will be displayed in the back end, without the need to add post type support for `'page-attributes'`. 'Post Attributes' can be customized per post type using the `'attributes'` label when registering a post type.

Props johnbillion, Mte90, dipesh.kakadiya, swissspidy.
Fixes #18375.

git-svn-id: https://develop.svn.wordpress.org/trunk@38951 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 08:06:43 +00:00
Konstantin Kovshenin ee14487043 Tests: Use correct arguments for `wp_newComment` XML-RPC method.
Fixes #38454
Props markoheijnen


git-svn-id: https://develop.svn.wordpress.org/trunk@38950 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 07:51:41 +00:00
Mike Schroder 35e6dbe14f Media: Add support for rendering PDF thumbnails.
When support for PDFs is available, on upload,
render 'Thumbnail', 'Medium', 'Large', and 'Full' sizes of
the first page, and save them in attachment meta.

Use these renders within Add Media, Media Gallery and List views,
Attachment Details, Post/Attachment Edit screens, and Attachment pages.

Support available by default via Imagick -> ImageMagick -> Ghostscript,
but can be provided by any `WP_Image_Editor` that supports PDFs.

Props adamsilverstein, azaozz, celloexpressions, desrosj, dglingren, ericlewis, ipstenu, joemcgill, joyously, markoheijnen, melchoyce, mikeschroder, tomauger.
Fixes #31050.

git-svn-id: https://develop.svn.wordpress.org/trunk@38949 602fd350-edb4-49c9-b593-d223f7449a82
2016-10-26 07:27:51 +00:00