Commit Graph

226 Commits

Author SHA1 Message Date
Dominik Schilling c259dff63c Customize: Ensure valid themes in the preview.
Merge of [41397] to the 4.7 branch.

Built from https://develop.svn.wordpress.org/branches/4.7@41430


git-svn-id: http://core.svn.wordpress.org/branches/4.7@41263 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-09-19 11:51:06 +00:00
Dominik Schilling 2d7fa9d0dc Customize: Ignore invalid customization sessions.
Merge of [40704] to the 4.7 branch.
Built from https://develop.svn.wordpress.org/branches/4.7@40705


git-svn-id: http://core.svn.wordpress.org/branches/4.7@40568 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-05-16 12:14:35 +00:00
Pascal Birchler bc0a2456cc Customize: Use `is_header_video_active()` as `active_callback` for `external_header_video` control instead of `is_front_page()`.
Use the same `active_callback` as was supplied previously for the `header_video` control in [39240] where this instance was missed.

Amends [39240].
Props pratikshrestha.
See #38738.
Fixes #40308.

Merges [40379] to the 4.7 branch.

Built from https://develop.svn.wordpress.org/branches/4.7@40384


git-svn-id: http://core.svn.wordpress.org/branches/4.7@40291 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-04-06 17:21:34 +00:00
Dion Hulse 876e894635 Customize: Extend auto-draft life of a `customize_changeset` post whenever modified.
Keep bumping the date for the auto-draft to preserve it from garbage-collection via `wp_delete_auto_drafts()` after 7 days.

Props westonruter.
Merges [40041] to the 4.7 branch.
See #30937.
Fixes #39713.

Built from https://develop.svn.wordpress.org/branches/4.7@40099


git-svn-id: http://core.svn.wordpress.org/branches/4.7@40036 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-02-21 07:03:34 +00:00
Dion Hulse 02789248ca Customize: Allow custom post types to be used in starter content.
Changes `WP_Customize_Nav_Menus::insert_auto_draft_post()` so it can be invoked for a `post_type` that is not registered (yet).

Props westonruter.
Merges [39924] to the 4.7 branch.
See #38615, #38114.
Fixes #39610.

Built from https://develop.svn.wordpress.org/branches/4.7@40098


git-svn-id: http://core.svn.wordpress.org/branches/4.7@40035 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-02-21 07:02:34 +00:00
Dion Hulse de7de0a0d6 Customize: Always enqueue `customize-preview` stylesheet in the customizer preview to style selective refresh and visual edit shortcuts.
Enqueues the style along with the `customize-preview` script in the manager instead of via the `widgets` and `nav_menus` components, ensuring that the stylesheet is loaded for users who cannot manage widgets or nav menus.

Props dlh, westonruter.
Merges [39951] to the 4.7 branch.
See #27403.
Fixes #39498.

Built from https://develop.svn.wordpress.org/branches/4.7@40095


git-svn-id: http://core.svn.wordpress.org/branches/4.7@40032 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-02-21 06:54:35 +00:00
Dion Hulse d93d3febfe Customizer: Don't query for postmeta for Custom CSS (for not-current-themes) and Customizer Changeset posts.
Props dlh.
Merges [39692] to the 4.7 branch.
Fixes #39194.

Built from https://develop.svn.wordpress.org/branches/4.7@39693


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39633 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-01-05 08:13:35 +00:00
Dion Hulse c3f619e2d0 Customize: Trim whitespace for URLs supplied for `external_header_video` to prevent `esc_url_raw()` from making them invalid.
Props tyxla.
See #38172.
Merges [39560] to the 4.7 branch.
Fixes #39125.

Built from https://develop.svn.wordpress.org/branches/4.7@39573


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39513 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-12 02:06:32 +00:00
Dion Hulse 5fa8150d16 Customize: Use selected user language for edit shortcuts in preview instead of site language.
Props ocean90.
Merges [39545] to the 4.7 branch.
Fixes #39009.

Built from https://develop.svn.wordpress.org/branches/4.7@39571


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39511 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-12 01:59:34 +00:00
Weston Ruter 92c3c3453b Customize: Defer populating `post_name` for `auto-draft` posts in customized state until posts are published.
The ultimate `post_name` is stored in postmeta until the post is published. The `get_page_by_path()` function does not exclude `auto-draft` posts. Revert changes to `wp_unique_post_slug()` from [39411] which excluded `auto-draft` posts.

Props westonruter, dlh for testing, helen for testing.
Merges [39506] onto 4.7 branch.
Fixes #39078 for 4.7.

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git-svn-id: http://core.svn.wordpress.org/branches/4.7@39447 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-05 19:39:34 +00:00
Weston Ruter ac2345ca32 Customize: Ensure `textarea` for Custom CSS displays as code (in LTR) when an RTL language is active.
Merges [39499] onto 4.7 branch.
Fixes #39085 for 4.7.

Built from https://develop.svn.wordpress.org/branches/4.7@39500


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39440 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-05 14:00:35 +00:00
Helen Hou-Sandí 1c4c7086a5 Custom CSS: Change the help link to something better for users.
fixes #39015 for the 4.7 branch.

Built from https://develop.svn.wordpress.org/branches/4.7@39467


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39407 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-03 05:12:33 +00:00
Weston Ruter 4727124583 Customize: Fix posts limit query arg for `WP_Query` from incorrect `number` to `posts_per_page`.
Merges [39434] onto 4.7 branch.
Props dlh.
Fixes #39022 for 4.7.

Built from https://develop.svn.wordpress.org/branches/4.7@39435


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39375 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-02 16:19:34 +00:00
Weston Ruter 90cd5e5f80 Customize: Reuse existing non-auto-draft posts and existing auto-draft posts in the customized state with matching slugs when applying starter content.
* Updates `wp_unique_post_slug()` to ignore `auto-draft` posts. Prevents publishing multiple posts that have the same slugs from starter content.
* Fixes fatal error when attempting to save an header_image setting from a non-admin context.
* Fixes substituting attachment symbols in options and theme mods.
* Fixes applying starter content for header images and background images.

Merges [39411] to 4.7 branch.
See #38114.
Fixes #38928 for 4.7.

Built from https://develop.svn.wordpress.org/branches/4.7@39412


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39352 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-02 00:26:34 +00:00
Weston Ruter 816196aee7 Customize: Reject a changeset update when a non-future date is provided and also ensure that a published changeset always gets set to the current date/time.
* Also moves checks from `customize_save` Ajax handler to the underlying `WP_Customize_Manager::save_changeset_post()` call which plugins may invoke directly.
* Ensures that `customize_save_response` filter is always passed an array, with error code available as `code`.

Props utkarshpatel, westonruter, sayedwp.
Merges [39409] into 4.7 branch.
See #30937.
Fixes #38943 for 4.7.

Built from https://develop.svn.wordpress.org/branches/4.7@39410


git-svn-id: http://core.svn.wordpress.org/branches/4.7@39350 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-12-02 00:07:33 +00:00
Helen Hou-Sandí 70fc99e323 Theme starter content: Add support for featured images and page templates.
Featured image support means that attachments can now be imported. Media can be sideloaded from within theme or plugin directories. Like other posts, attachments are auto-drafts until customizer changes are published, and are not duplicated when they already exist in the customized state. Attachment IDs can be used for any number of purposes, much like post IDs. Twenty Seventeen now includes 3 images used as featured images to best showcase the multi-section homepage setup.

As featured image IDs are stored in post meta, it also made sense to add support for page templates. Twenty Seventeen does not include any such templates, but the functionality can be quite important for displaying themes to their best effect.

props westonruter, helen, flixos90.
fixes #38615.

Built from https://develop.svn.wordpress.org/trunk@39346


git-svn-id: http://core.svn.wordpress.org/trunk@39286 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-23 09:53:33 +00:00
Weston Ruter 6b5d960453 Customize: Clean up docs and code style for customize changes in 4.7.
* Adds missing `resolve`/`fail` for promise returned by `loadThemePreview`.
* Adds missing jsdoc blocks and tags.
* Adds missing phpdoc and makes corrections.

See #37770.
Fixes #38908.

Built from https://develop.svn.wordpress.org/trunk@39345


git-svn-id: http://core.svn.wordpress.org/trunk@39285 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-23 06:05:32 +00:00
Weston Ruter 3284f9a989 Customize: Remove iframe-specific behaviors from customize preview when previewing on frontend and not contained inside iframe.
* Strip out `customize_messenger_channel` from preview window URL when not contained in iframe.
* Allow interacting with unpreviewable links and forms when previewing customized state on frontend.

See #30937.
Fixes #38867.

Built from https://develop.svn.wordpress.org/trunk@39332


git-svn-id: http://core.svn.wordpress.org/trunk@39272 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-21 16:56:30 +00:00
Weston Ruter 3c7e23297e Customize: Ensure that `WP_Customize_Manager::save_changeset_post()` returns `setting_validities` even for supplied values that are unchanged from values in changeset.
Check setting existence and authorization via `WP_Customize_Manager::validate_setting_values()` even for `null` values to account for custom params being added to settings, preventing failures from being silently ignored.

See #38705, #30937.
Fixes #38865.

Built from https://develop.svn.wordpress.org/trunk@39320


git-svn-id: http://core.svn.wordpress.org/trunk@39260 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-19 22:39:33 +00:00
Weston Ruter 2cabe7aef1 Customize: Add unit tests for importing theme starter content.
Props welcher, westonruter.
See #38114, #38533, #38615.
Fixes #38540.

Built from https://develop.svn.wordpress.org/trunk@39276


git-svn-id: http://core.svn.wordpress.org/trunk@39216 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-17 08:18:32 +00:00
Joe McGill 5ef714db18 Themes: Improve a11y and extendability of custom video headers.
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
2016-11-16 23:26:31 +00:00
Weston Ruter 7db38b916a Customize: Allow URL for Codex link in Additional CSS section to be translated.
Props odysseygate, ocean90, westonruter.
See #35395.
Fixes #38823.

Built from https://develop.svn.wordpress.org/trunk@39268


git-svn-id: http://core.svn.wordpress.org/trunk@39208 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-16 18:42:32 +00:00
Sergey Biryukov ec0043c279 I18N: Remove `<code>` tags from translatable strings in `wp-includes/class-wp-customize-manager.php`.
Props ramiy.
Fixes #38802.
Built from https://develop.svn.wordpress.org/trunk@39254


git-svn-id: http://core.svn.wordpress.org/trunk@39194 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-15 20:54:30 +00:00
Weston Ruter 8efc416f64 Customize: Allow starter content to apply in a new theme when switching from another theme containing changes.
* 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
2016-11-15 09:03:32 +00:00
Peter Wilson 11998b4169 Themes: Remove front page restriction from video header functions.
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
2016-11-15 07:16:33 +00:00
Weston Ruter de0835dead Customize: Only show video header controls if previewing front page; show explanatory notice when controls are hidden.
Also include todo for the `header_video` control's `button_labels`. See #38796.

Props westonruter, joemcgill, celloexpressions.
Fixes #38778.

Built from https://develop.svn.wordpress.org/trunk@39237


git-svn-id: http://core.svn.wordpress.org/trunk@39177 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-15 03:47:30 +00:00
Weston Ruter 8e6753cead Customize: Use video-specific labels for buttons in Header Video media control.
See #38172.

Built from https://develop.svn.wordpress.org/trunk@39234


git-svn-id: http://core.svn.wordpress.org/trunk@39174 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-15 00:22:30 +00:00
Weston Ruter dfbcdae985 Customize: Use selective refresh for custom header changes when possible.
* 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
2016-11-14 18:41:32 +00:00
Joe McGill 956818f5eb Customize: Rename "Header Visuals" to "Header Media".
"Header Visuals" is a bit vague since the title/tagline are arguably
also “header visuals”. "Header Media" is more descriptive and is
consistent with how we refer to images/videos throughout core.

Props bradyvercher.
Fixes #38756.
Built from https://develop.svn.wordpress.org/trunk@39205


git-svn-id: http://core.svn.wordpress.org/trunk@39145 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-11 23:24:30 +00:00
Weston Ruter 5b676af8ff Customize: Store modifying user ID with setting change written into changeset and restore current user when setting is being saved.
Restoring the current user context when saving a setting ensures filters apply as expected, such as Kses. When a user is not associated with a given setting change, continue to override `capability` to be `exist` when saving. Skip overwriting setting values in a changeset that have not changed, facilitating concurrent editing and amending a changeset by a user with fewer privileges.

See #30937.
Fixes #38705.

Built from https://develop.svn.wordpress.org/trunk@39181


git-svn-id: http://core.svn.wordpress.org/trunk@39121 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-09 07:03:30 +00:00
Weston Ruter 08712b4baa Customize: Rename `unfiltered_css` meta capability to `edit_css`; add `revisions` support to `custom_css` post type.
Props lukecavanagh, georgestephanis, westonruter.
See #38672, #35395.

Built from https://develop.svn.wordpress.org/trunk@39175


git-svn-id: http://core.svn.wordpress.org/trunk@39115 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-09 01:12:30 +00:00
Joe McGill 5704743a78 Themes: Remove Vimeo logic from `header_video_settings()`.
Following [39148] and [39128], this removes the mime type logic for
Vimeo URLs from `get_header_video_settings()` and removes remaining
Vimeo reference from `_validate_external_header_video()` docs.

Fixes #38544.
Built from https://develop.svn.wordpress.org/trunk@39165


git-svn-id: http://core.svn.wordpress.org/trunk@39105 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-08 19:20:32 +00:00
Weston Ruter 1363813c6b Customize: Move Custom CSS control `placeholder` help text to setting `default` value.
The `WP_Customize_Custom_CSS_Setting::value()` method now returns the `default` if `wp_get_custom_css()` returns empty.

Props westonruter, afercia, helen.
See #35395.
Fixes #38685.

Built from https://develop.svn.wordpress.org/trunk@39151


git-svn-id: http://core.svn.wordpress.org/trunk@39091 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-07 18:13:34 +00:00
Weston Ruter 5ea1e6fd80 Customize: Allow tab characters in custom CSS input.
Pressing `Esc` followed by `Tab` allows for tabbing to the next element.

Props afercia, coffee2code, westonruter.
See #35395.
Fixes #38667.

Built from https://develop.svn.wordpress.org/trunk@39149


git-svn-id: http://core.svn.wordpress.org/trunk@39089 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-06 19:09:33 +00:00
Joe McGill 68b4181985 Customize: Remove Vimeo validation for external videos.
Following [39128], this removes the validation logic for Vimeo URLs from
`_validate_external_header_video()` since WP does not support the
display of videos from Vimeo by default.

This also includes a change to using `esc_url_raw()` instead of `esc_url()`
on the URL value to avoid unexpected behavior from the inclusion of HTML
entities.

Props peterwilsoncc, westonruter.
Fixes #38544.
Built from https://develop.svn.wordpress.org/trunk@39148


git-svn-id: http://core.svn.wordpress.org/trunk@39088 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-05 18:32:35 +00:00
Helen Hou-Sandí 1281a28382 Customize: Revert theme install feature.
This is a great goal for core, and is close, but it is not in shape to be shipped for 4.7 and there is not enough time left in the development cycle to alter and polish sufficiently. There are bugs, but more than that, there are more fundamental questions around the use of existing UI, general UX, and how findable themes are (not) on the .org side.

see #37661.

Built from https://develop.svn.wordpress.org/trunk@39140


git-svn-id: http://core.svn.wordpress.org/trunk@39080 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-04 17:18:26 +00:00
Weston Ruter 6ccb29bee0 Customize: No-op `edit_post_link()` when in customizer preview.
Edit links can be restored in plugins by removing the `__return_empty_string` function from the `get_edit_post_link` filter at the `customize_preview_init` action.

Fixes #38648.

Built from https://develop.svn.wordpress.org/trunk@39133


git-svn-id: http://core.svn.wordpress.org/trunk@39073 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-04 17:14:56 +00:00
Joe McGill 50b2c6cf2c Customize: Remove Vimeo reference from description for external header videos.
Vimeo's API requires a Pro account to display videos as background videos
(i.e., without player controls), thus we shouldn't support Vimeo
URLs by default in custom header videos. This removes the reference of Vimeo
from the control description in the customizer.

Fixes #38544.
Built from https://develop.svn.wordpress.org/trunk@39128


git-svn-id: http://core.svn.wordpress.org/trunk@39068 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-04 17:12:28 +00:00
Joe McGill 8fa49e77bd Themes: Improve support for placeholders in default headers.
When themes register default headers, they can use sprintf style placeholder
strings in place of the template directory URI, which WordPress transforms
in several places by running the value of
`get_theme_support( 'custom-header', 'default-image' )` through `sprintf()`.

This fixes a few places where WordPress skipped the `sprintf()` step and
referenced the `get_theme_support()` value directly.

Props bradyvercher for initial patch.
See #38557.
Built from https://develop.svn.wordpress.org/trunk@39123


git-svn-id: http://core.svn.wordpress.org/trunk@39063 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-04 17:10:01 +00:00
Weston Ruter c0b41d8fee Customize: Prevent PHP warning in applying widget starter content on fresh installs.
Fixes PHP warning triggered by calling `max()` on `$widget_numbers` when there are no widget instances of the type yet. Also makes sure that widget instances start at 2 instead of 1.

See #38114.

Built from https://develop.svn.wordpress.org/trunk@39100


git-svn-id: http://core.svn.wordpress.org/trunk@39042 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-11-03 00:00:32 +00:00
Weston Ruter 015cb27b87 Customize: Prevent auto-draft post/page stubs from being saved with empty slugs or published with non-unique slugs.
* Allow `WP_Customize_Nav_Menus::insert_auto_draft_post()` to take full post array to pass to `wp_insert_post()`, except for `post_status`. Require `post_title`. 
* Ensure empty `post_name` gets explicitly set to slugified `post_title`.
* Explicitly allow only `post_type` and `post_title` params in `WP_Customize_Nav_Menus::ajax_insert_auto_draft_post()`.
* Use `wp_update_post()` instead of `wp_publish_post()` to ensure unique slugs are assigned to published auto-draft posts.
* Re-use `WP_Customize_Nav_Menus::insert_auto_draft_post()` when inserting stubs from starter content.
 
See #38114, #38013, #34923.
Fixes #38539.

Built from https://develop.svn.wordpress.org/trunk@39038


git-svn-id: http://core.svn.wordpress.org/trunk@38980 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-30 20:21:33 +00:00
Weston Ruter 9da43bc2c8 Customize: Move Additional CSS section toward end of list by assigning priority higher than default.
Props Mista-Flo.
Fixes #38524.

Built from https://develop.svn.wordpress.org/trunk@39003


git-svn-id: http://core.svn.wordpress.org/trunk@38945 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-29 05:11:29 +00:00
Weston Ruter 75535c596b 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.

Built from https://develop.svn.wordpress.org/trunk@38991


git-svn-id: http://core.svn.wordpress.org/trunk@38934 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-28 02:57:35 +00:00
Joe McGill f9f6dd7958 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.
Built from https://develop.svn.wordpress.org/trunk@38989


git-svn-id: http://core.svn.wordpress.org/trunk@38932 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-28 01:51:31 +00:00
Joe McGill 030bc377dd 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.
Built from https://develop.svn.wordpress.org/trunk@38985


git-svn-id: http://core.svn.wordpress.org/trunk@38928 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-27 21:51:31 +00:00
Weston Ruter a86496aea4 Customize: Improve custom background properties UI.
Introduces new control for managing the background position. Adds control for setting the `background-size`.

Props cdog, celloexpressions, grapplerulrich, MikeHansenMe, FolioVision, afercia, helen, melchoyce, karmatosed, westonruter, Kelderic, sebastian.pisula.
Fixes #22058.

Built from https://develop.svn.wordpress.org/trunk@38948


git-svn-id: http://core.svn.wordpress.org/trunk@38891 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-26 06:52:29 +00:00
Weston Ruter 02ce8db6de Customize: Add explanatory note for `custom_css` control via `textarea[placeholder]` and expose any defined `input_attrs` on such `textarea` controls.
Props melchoyce, westonruter, celloexpressions.
See #37439.
Fixes #38493.

Built from https://develop.svn.wordpress.org/trunk@38933


git-svn-id: http://core.svn.wordpress.org/trunk@38876 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-25 22:52:10 +00:00
Dominik Schilling 7cce73a634 General: Introduce a `wp_list_sort()` helper function, v2.
In addition to `wp_list_filter()` for filtering a list of objects, and `wp_list_pluck()` for plucking a certain field out of each object in a list, this new function can be used for sorting a list of objects by specific fields. These functions are now all contained within the new `WP_List_Util()` class and `wp_list_sort()` is used in various parts of core for sorting lists.

This was previously committed in [38859] but got reverted in [38862] and [38863]. To fix the previous issues, `wp_list_sort()` supports now an additional argument to preserve array keys via `uasort()`.

Props flixos90, DrewAPicture, jorbin.
Fixes #37128.
Built from https://develop.svn.wordpress.org/trunk@38928


git-svn-id: http://core.svn.wordpress.org/trunk@38871 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-25 21:26:32 +00:00
Weston Ruter 30a71555cb Customize: Allow page stubs to be created via `dropdown-pages` controls in the Static Front Page section.
This ability was previously added to nav menus via the available page items panel. The "Add New Page" button only appears when the `allow_addition` control param is supplied as `true`. Code is adapted from the Customize Posts feature plugin.

Props celloexpressions, westonruter.
See #38013, #34923.
Fixes #38164.

Built from https://develop.svn.wordpress.org/trunk@38906


git-svn-id: http://core.svn.wordpress.org/trunk@38849 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-25 06:31:31 +00:00
Weston Ruter d93636bd11 Customize: Disable theme installation in multisite.
Props celloexpressions, iamfriendly.
Fixes #38370.

Built from https://develop.svn.wordpress.org/trunk@38887


git-svn-id: http://core.svn.wordpress.org/trunk@38830 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-10-24 18:17:39 +00:00