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| 1 | <?php |
| 2 | /** |
| 3 | * Helper functions to fetch authors. |
| 4 | * |
| 5 | * @package Newspack_Blocks |
| 6 | */ |
| 7 | |
| 8 | namespace Newspack_Blocks; |
| 9 | |
| 10 | /** |
| 11 | * Get a list of user roles on this site that have the edit_posts capability. |
| 12 | * |
| 13 | * @return array List of roles with edit_posts capability. Each array item is an array with a slug and label property. |
| 14 | */ |
| 15 | function get_authors_roles() { |
| 16 | global $wp_roles; |
| 17 | |
| 18 | $editable_roles = []; |
| 19 | |
| 20 | foreach ( $wp_roles->roles as $role_slug => $role ) { |
| 21 | if ( isset( $role['capabilities'] ) && isset( $role['capabilities']['edit_posts'] ) && $role['capabilities']['edit_posts'] ) { |
| 22 | $editable_roles[] = [ |
| 23 | 'slug' => $role_slug, |
| 24 | 'label' => $role['name'], |
| 25 | ]; |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Deprecated filter. |
| 31 | * |
| 32 | * @param array $editable_roles Array of editable role names as registered via add_role. |
| 33 | * |
| 34 | * @deprecated Use the newspack_blocks_authors_roles filter instead. |
| 35 | * @return array Filtered array of roles. |
| 36 | */ |
| 37 | $editable_roles = apply_filters( 'newspack_blocks_author_list_editable_roles', $editable_roles ); |
| 38 | |
| 39 | /** |
| 40 | * Filter the array of editable roles so other plugins can add/remove as needed. |
| 41 | * The array should be a flat array of the name of each role as registered via add_role. |
| 42 | * https://developer.wordpress.org/reference/functions/add_role/ |
| 43 | * |
| 44 | * @param array $editable_roles Array of roles that can edit posts. Each array item is an array with a slug and label property. |
| 45 | * |
| 46 | * @return array Filtered array of roles. |
| 47 | */ |
| 48 | return apply_filters( 'newspack_blocks_authors_roles', $editable_roles ); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Get a list of user roles on this site that have the edit_posts capability. |
| 53 | * |
| 54 | * @return string[] List of roles with edit_posts capability. |
| 55 | */ |
| 56 | function get_authors_roles_slugs() { |
| 57 | return array_map( |
| 58 | function( $role ) { |
| 59 | return $role['slug']; |
| 60 | }, |
| 61 | get_authors_roles() |
| 62 | ); |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Whether an avatar should be displayed, honoring a "hide default avatar" preference. |
| 67 | * |
| 68 | * Gravatar-served images never carry core's `avatar-default` class (core only |
| 69 | * emits it when no avatar was found, and the Gravatar branch always reports |
| 70 | * found), so a generated fallback like `d=mm` is indistinguishable from a real |
| 71 | * avatar by class alone. When hiding defaults, callers must fetch the avatar |
| 72 | * with Gravatar's `blank` fallback so it can be detected via the `d=blank` |
| 73 | * param — mirroring the Author List block's long-standing behavior. |
| 74 | * |
| 75 | * @param string|false $avatar Avatar HTML as returned by get_avatar()/coauthors_get_avatar(). |
| 76 | * @param bool $hide_default Whether default (fallback) avatars should be hidden. |
| 77 | * |
| 78 | * @return bool True if the avatar should be displayed. |
| 79 | */ |
| 80 | function is_avatar_displayable( $avatar, $hide_default ) { |
| 81 | if ( ! $avatar ) { |
| 82 | return false; |
| 83 | } |
| 84 | if ( ! $hide_default ) { |
| 85 | return true; |
| 86 | } |
| 87 | $is_default = false !== strpos( $avatar, 'avatar-default' ) || false !== strpos( $avatar, 'd=blank' ); |
| 88 | return ! $is_default; |
| 89 | } |