Introduces the ability to create stubs for the various post types to add to a given menu. This eliminates the need to leave the customizer to first create the post in the admin and then return to managing menus. Only the title of the newly-created post can be supplied; the post content will be blank and will need to be provided in the normal edit post screen outside the customizer, unless a plugin enables a post editing in the customizer experience. When a post is created and added to a nav menu in the customizer, the newly created post that is added to a menu is given the `auto-draft` status, and if the changes are not published, the `auto-draft` post will be automatically deleted within 7 days via `wp_delete_auto_drafts()`. However, if the customizer changes are saved, then these nav menu item `auto-draft` post stubs will be transitioned to `publish`.
Includes portions of code from the Customize Posts <https://github.com/xwp/wp-customize-posts> and Front-end Editor <https://github.com/iseulde/wp-front-end-editor> plugins.
For more information, see https://make.wordpress.org/core/2016/06/16/feature-proposal-content-authorship-in-menus-with-live-preview/
Props celloexpressions, westonruter, valendesigns, afercia, melchoyce, mapk, iseulde, mrahmadawais.
Fixes#34923.
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The button was introduced in [37901] to allow users switching to the selected menu for further edits. A link makes it more clear that the user is taken away from the current view.
This also adds an aria label and makes the button label more verbose, 'Edit Menu'.
Props afercia.
Props helen for review.
Fixes#36795.
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When Open Sans was in use, the `300`, `400`, and `600` weights were loaded. `400` is the equivalent of `normal`; however, `bold` is equivalent to `700`, not `600`. With the move to system fonts, we need to be specific rather than relying on the lack of a `700` weight. Not all system fonts include a `600` weight; in those instances, they will use the `bold`/`700` weight.
The WordPress CSS Coding Standards have been updated accordingly.
props coderste.
see #36753.
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Also move style rule from `customize-nav-menus.css` to `customize-controls.css` so that widgets button is properly styled when `nav_menus` component is excluded from loading. See [35304]. See #33327.
Props westonruter, DrewAPicture.
Fixes#33552.
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For accessibility, UI controls should preferably be native controls. Adds
ARIA attributes and labels to improve accessibility and pair these buttons
with the ones in the Menu Customizer.
Props obenland, TomHarrigan, sanket.parmar, metodiew, afercia.
Fixes#33327.
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These H5 (heading level 5) don't allow for a good headings hierarchy and shouldn't be headings in the first place. Each group of options has now its own fieldset and legend.
In `render_screen_options()`, introduce two new "render" methods: `render_meta_boxes_preferences()` and `render_list_table_columns_preferences()` for consistency with already existing render methods and cleaner code.
Props joedolson, afercia.
Fixes#33646.
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Available items now fade from view while you're searching, and there is an explicit way to clear search results. No results gives a better message, though still brief this time around.
props valendesigns, designsimply, DH-Shredder, helen.
fixes#32710.
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* Use lists for available menu items.
* Remove unused template for available item types.
* Hide the type label and title from screen readers and instead include them in the add button.
props celloexpressions, afercia.
fixes#32724.
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Adds validation for initially-supplied nav menu name, blocking empty names from being supplied. If later an empty name is supplied and the nav menu is saved, the name "(unnamed)" will be supplied instead and supplied back to the client. If a name is supplied for the menu which is currently used by another menu, then the name conflict is resolved by adding a numerical counter similar to how `post_name` conflicts are resolved. Includes unit tests.
Fixes#32760.
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