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NEW IN VERSION 2.0.0: Users with a custom role will now only see the posts or pages they are assigned to. We’ve also streamlined the admin interface for easier configuration, and included additional instructions to help you get the proper capabilities assigned to your custom roles.
Custom Access Roles allows you to create, edit and delete custom roles for editing content. It was created to fill a need for a role editor plugin that is focused on providing easy-to-use admin tools for restricting content editing access. It is not concerned with restricting viewing access on the front end.
It is specifically intended for large sites with multiple content editors, where editors (by role, not individually) need to be restricted to only being able to edit specific areas of the site.
With this plugin, administrators of large sites have relatively fine-grained control over which user roles can edit which content, making it possible to manage a team of editors without concern that they will (accidentally or deliberately) edit content they should not have access to.
You can define a fully customized set of capabilities for each role, along with defining a specific set of post categories, pages, and custom post types to which those capabilities apply. For all other content, the role will have read-only access.
Custom Access Roles provides an easy interface for managing these roles and capabilities, with checkboxes for each capability grouped by the standard roles they’re associated with, plus checkboxes for each post category, page, and custom post type, presented in an organized hierarchy.

Custom Access Roles

Create custom roles with editing capability for only specific pages, categories and post types.

Weston Ruter

In WordPress 4.5 the <a href="https://make.wordpress.org/core/2016/02/16/selective-refresh-in-the-customizer/" rel="nofollow ugc">selective refresh</a> framework was introduced in core. One of the key concepts in this framework is the “partial”, the region in a document which is selectively refreshed when a related setting is modified. This means that one or more settings are linked with a given element in the preview. When selective refresh was first was introduced it supported the ability for a user to “shift click” on a partial to jump to and focus on the related control in the pane. In WordPress 4.7 this was then enhanced with <a href="https://make.wordpress.org/core/2016/11/10/visible-edit-shortcuts-in-the-customizer-preview/" rel="nofollow ugc">visible edit shortcuts</a> so that users could click (touch even) on the icon to be able to reveal the control in the pane.
The Customize Inline Editing plugin builds on edit shortcuts by allowing the setting to be modified inline via direct manipulation in the preview without having focus removed and placed on the controls pane. This is particularly useful on mobile devices on small screens where a user cannot both see the controls and preview at the same time, as can be compared here:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/w7WfSEtT8pc?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Inline editing in this way is also helpful for accessibility since keyboard focus remains in the preview at the element being edited, as can be seen in this demonstration of inline editing on a desktop browser:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/KesM3vo5WyE?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
This plugin provides one example implementation of inline editing this can be accomplished in the customizer. Version 0.1 of this plugin from 2014 was a precursor in some ways to selective refresh, specifically in regards to how CSS selectors are associated with customizer settings.
Themes can opt-in to support this plugin’s inline editing within the customizer by assigning the appropriate type to the registered partials:
<pre>
add_action( 'customize_register', function( $wp_customize ) {
 $opt_in_partials = array_filter( array(
 $wp_customize->selective_refresh->get_partial( 'blogname' ),
 $wp_customize->selective_refresh->get_partial( 'blogdescription' )
 ) );
 foreach ( $opt_in_partials as $partial ) {
 $partial->type = 'inline_editable';
 }
}, 100 );
</pre>
Click on the edit shortcut to begin editing the element, with keyboard focus then given to the editable element. If the value has a server-side rendered value (e.g. where PHP filters like <code>wptexturize</code> apply to improve typography), the raw value will be supplied when editing starts. Editing can be completed by clicking out of the editable element, tabbing out of the element (blurring it), or clicking the edit icon which then appears as a “done” checkmark icon. You may also shift-click on an element to edit it.
Currently only basic text fields can currently be edited; styling and any tags added to <code>contentEditable</code> areas will be stripped out. Eventually rich text formatting may be allowed, specifically for integrations with the Text widget (via <a href="https://github.com/xwp/wp-js-widgets" rel="nofollow ugc">JS Widgets</a>) or post content (via <a href="https://github.com/xwp/wp-customize-posts" rel="nofollow ugc">Customize Posts</a>).
The <a href="https://make.wordpress.org/core/2016/02/16/selective-refresh-in-the-customizer/" rel="nofollow ugc">selective refresh</a> writeup from 4.5 concludes with a section on a possible future for it and inline editing:
<blockquote>
If we can eliminate full-page refreshes from being the norm for the Customizer, we can start to introduce controls inline with the preview. If the entire preview does not reload, then the inline controls won’t get destroyed by the refresh with each change. For example, consider a widget control floating immediately next to the widget in the sidebar it is editing. With selective refresh, it will then also be possible to eliminate the Customizer altogether. The Customizer could be available to anyone who is logged in, with the controls being bootstrapped on demand when a user wants to edit a given element. There would be no need to navigate way from a page on the frontend to enter a unique Customizer state: the Customizer would come to the user. Any controls not relevant to being inline could remain in the Customizer pane, but it could slide in only as needed instead of appearing by default. That is to say, selective refresh makes the Customizer a much better framework for implementing frontend editing.
</blockquote>
Development of this plugin is done <a href="https://github.com/xwp/wp-customize-inline-editing" rel="nofollow ugc">on GitHub</a>. Pull requests welcome. Please see <a href="https://github.com/xwp/wp-customize-inline-editing/issues" rel="nofollow ugc">issues</a> reported there before going to the <a href="https://wordpress.org/support/plugin/customize-inline-editing" rel="ugc">plugin forum</a>.

Customize Inline Editing

Makes the whole text editing process smooth. From refresh to postMessage to inline editing awesome transition. Keep up the good work :)



Awesome

Demonstration of how inline editing can be implemented in the customizer.

Custom Access Roles vs Customize Inline Editing