Admin Bar User Switching

This plugin was originally developed by Mark Wilkinson. An admin bar “Switch to User” option is provided which on hover provides a search box where you can query a user to switch to. The results are links to switch to that user. This plugin is great for when you are building sites for clients and it is beneficial to see the site as your logged in client see's it. And there is an optional mode where you can use a custom keyboard combination, say 'su', and it activates the form where you search for users, and then you can use keyboard arrows to navigate the list of results, and the return key to switch to the selected user. The same combo can be used to focus the 'Switch Off' link, following a return to simulate a click. To activate this feature and set the custom keyboard combination, aka magic word, you need to use the abus_ajax_args and add a 'magicWord' variable. Note that keyboard navigation is not dependant on the custom keyboard combination, and can be used out of the box.

To install the plugin:

1. Upload to the /wp-content/plugins/ directory
2. 通过WordPress的“插件”菜单激活插件

1.4 - 2021-17-12

• Fixed - Fixed Undefined Variable $port.

1.3 - 2021-22-10

• Fixed - Deprecated error.

1.2 - 2020-02-11

• Update - WordPress 5.3 compatibility
• Tweak - Update and modernize the codebase

1.1.1

• Only enqueue js if the user is logged in
• Do not seperately enqueue jQuery as it is already stated as a dependency

1.1

• Add keyboard navigation
• Add magic-word feature, keyboard-only usage of the plugin
• Focus search input on clicking the admin-bar button - thanks to @shadyvb for work on these features
• Allow search on any user fields rather than just the login or username
• Make the search query parameters extensible with a filter so developers can easily edit them
• Escape calls to $_POST in the ajax search function

1.0.6

• Make the capability (edit_users by default) needed to be able to switch to users be filterable.

1.0.5

• Escape instances of add_query_arg in accordance with https://make.wordpress.org/plugins/2015/04/20/fixing-add_query_arg-and-remove_query_arg-usage/

1.0.4

• Correct an issues which could result in a PHP error when the plugin is active and the User Switching plugin is not active.
• Add filter for the switch to redirect url named abus_switch_to_url - this allows devs to alter the redirect url for different users as the filter is passed to switch to user user object.

1.0.3

• Output styles on both front and backend to make the form look correct when results are returned.
• Create a filter for developers to amend the styles as needed to match their theme
• Use correct hook for enqueuing javascript file
• Make sure the current logged in user does not appear in the search results

1.0.2

• Thanks for @johnbillion for pointing out the incorrect capabilities check for switch_to_user. This now checks against edit_user so users who can edit users will be the Switch to link.

1.0.1

• Use switch_to_user user capability instead of is_super_admin when checking whether to display Switch to link in admin bar.

1.0

• Make the Switch to User link reveals a user search box
• Uses AJAX to populate the user switch to list which therefore makes the plugin more compatible for sites with lots of users.

0.1

• Initial release.