TinyMCE wpView:
- Add loadingPlaceholder() that returns some html to use as placeholder while the view is loading. Includes a subtle CSS based loading animation.
- Fix setContent(), it should empty the element before appending the new node.
- Change getHtml() to always return a string.
Fixes #28761.
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git-svn-id: http://core.svn.wordpress.org/trunk@28807 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Focus and blur styling (via JS) for the install screen language selector. Props jorbin. See #28577
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git-svn-id: http://core.svn.wordpress.org/trunk@28808 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Narrower layout and loading spinner for the install screen language selector. See #28577
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git-svn-id: http://core.svn.wordpress.org/trunk@28809 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView:
- Improve the fake caret hide/show.
- Improve getView() speed.
- Add callback for showing the proper path when a view is selected. This currently doesn't work, will start working after we update TinyMCE.
props avryl, see #28567, #28595.
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git-svn-id: http://core.svn.wordpress.org/trunk@28810 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Pre-commit autoprefixer fixes for media-views.css
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git-svn-id: http://core.svn.wordpress.org/trunk@28811 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Pass the post object rather than the post ID between the post permalink functions. Fixes #28425. Props arnee
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git-svn-id: http://core.svn.wordpress.org/trunk@28812 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Prompt the user before leaving the Customizer if they have unsaved changes. props westonruter. fixes #25439.

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git-svn-id: http://core.svn.wordpress.org/trunk@28813 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When accessing the Customizer from the admin menu, make sure the user is returned to the originating page upon close. We should still investigate the general usage of `customize-loader.js` moving forward, but this approach fixes the immediate issue. props westonruter. fixes #25457.

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git-svn-id: http://core.svn.wordpress.org/trunk@28814 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Allow an `array()` to be passed as the value for `orderby` to `WP_Query`. Allows for an independent `order` value for each key.

Example: `'orderby' => array( 'title' => 'DESC', 'menu_order' => 'ASC' )`.

Adds docs and unit tests.

Props wonderboymusic, johnbillion, DrewAPicture, dd32, andy.
See #17065.

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git-svn-id: http://core.svn.wordpress.org/trunk@28815 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Use wp_hash() instead of AUTH_KEY in WP_Customize_Widgets::get_instance_hash_key().

props juliobox.
fixes #28783.
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git-svn-id: http://core.svn.wordpress.org/trunk@28816 1a063a9b-81f0-0310-95a4-ce76da25c4cd
When setting the poster image for a video shortcode, set that image as the featured image for that attachment (if found) in the background. This AJAX functionality could be used for audio as well.

Introduces `attachment_url_to_postid()` to attempt to turn URLs into post IDs.

Fixes #27891.

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git-svn-id: http://core.svn.wordpress.org/trunk@28817 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Implement email and url input types where appropriate. Props Kau-Boy. Fixes #22183.
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git-svn-id: http://core.svn.wordpress.org/trunk@28818 1a063a9b-81f0-0310-95a4-ce76da25c4cd
More consistent icons in place of some buttons for the Customizer and theme install preview.

* Use a single close icon instead of a context-changing cancel/close button in the Customizer. In user testing, this small distinction in language was overlooked, and we use an AYS now instead. This also makes it consistent with the back arrow in Customizer panels.
* Use the same close icon as well as the previous/next arrows from the theme details browser in the theme install preview.

props celloexpressions. fixes #28655.

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git-svn-id: http://core.svn.wordpress.org/trunk@28819 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove autocomplete from the database password screen on setup-config.php. Props hebbet. Fixes #28585.
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git-svn-id: http://core.svn.wordpress.org/trunk@28820 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add a `create_wp_error` action which is called when a `WP_Error` instance is created. Fixes #28319. Props ebinnion
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git-svn-id: http://core.svn.wordpress.org/trunk@28821 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Customizer info section:

* Only show the theme info when doing a live preview of another theme.
* Replace with helper text about what you are customizing and what the Customizer is for.
* Fix focus styling.

props celloexpressions, westonruter. fixes #28550.

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git-svn-id: http://core.svn.wordpress.org/trunk@28822 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Customizer panels:

* Close all accordion sections when going in and out of panels.
* Fix panel positioning when top-level Customizer controls are scrolled down.
* Keyboard accessibility: only focus on visible elements and transfer between them as needed when navigating around panels.

props celloexpressions. see #27406.

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git-svn-id: http://core.svn.wordpress.org/trunk@28823 1a063a9b-81f0-0310-95a4-ce76da25c4cd
accordion.js:

* Remove remnants from when some corners were rounded.
* Docs.

props celloexpressions. see #27406.

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git-svn-id: http://core.svn.wordpress.org/trunk@28824 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add `@see` reference for `set_post_thumbnail()` in the phpDoc for `wp_ajax_set_attachment_thumbnail()`.

See #27891.

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git-svn-id: http://core.svn.wordpress.org/trunk@28825 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: remove leftover/unused bits, see #28567.
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git-svn-id: http://core.svn.wordpress.org/trunk@28826 1a063a9b-81f0-0310-95a4-ce76da25c4cd