| | 1 | <?php |
| | 2 | /** |
| | 3 | * Functions which enhance the theme but do not hook into WordPress |
| | 4 | * |
| | 5 | * @package WordPress |
| | 6 | * @subpackage Twenty_Nineteen |
| | 7 | * @since 1.5.0 |
| | 8 | */ |
| | 9 | |
| | 10 | /** |
| | 11 | * Determines if post thumbnail can be displayed. |
| | 12 | */ |
| | 13 | function twentynineteen_can_show_post_thumbnail() { |
| | 14 | return apply_filters( 'twentynineteen_can_show_post_thumbnail', ! post_password_required() && ! is_attachment() && has_post_thumbnail() ); |
| | 15 | } |
| | 16 | |
| | 17 | /** |
| | 18 | * Returns true if image filters are enabled on the theme options. |
| | 19 | */ |
| | 20 | function twentynineteen_image_filters_enabled() { |
| | 21 | return 0 !== get_theme_mod( 'image_filter', 1 ); |
| | 22 | } |
| | 23 | |
| | 24 | /** |
| | 25 | * Returns the size for avatars used in the theme. |
| | 26 | */ |
| | 27 | function twentynineteen_get_avatar_size() { |
| | 28 | return 60; |
| | 29 | } |
| | 30 | |
| | 31 | /** |
| | 32 | * Returns true if comment is by author of the post. |
| | 33 | * |
| | 34 | * @see get_comment_class() |
| | 35 | */ |
| | 36 | function twentynineteen_is_comment_by_post_author( $comment = null ) { |
| | 37 | if ( is_object( $comment ) && $comment->user_id > 0 ) { |
| | 38 | $user = get_userdata( $comment->user_id ); |
| | 39 | $post = get_post( $comment->comment_post_ID ); |
| | 40 | if ( ! empty( $user ) && ! empty( $post ) ) { |
| | 41 | return $comment->user_id === $post->post_author; |
| | 42 | } |
| | 43 | } |
| | 44 | return false; |
| | 45 | } |
| | 46 | |
| | 47 | /** |
| | 48 | * Returns information about the current post's discussion, with cache support. |
| | 49 | */ |
| | 50 | function twentynineteen_get_discussion_data() { |
| | 51 | static $discussion, $post_id; |
| | 52 | |
| | 53 | $current_post_id = get_the_ID(); |
| | 54 | if ( $current_post_id === $post_id ) { |
| | 55 | return $discussion; /* If we have discussion information for post ID, return cached object */ |
| | 56 | } else { |
| | 57 | $post_id = $current_post_id; |
| | 58 | } |
| | 59 | |
| | 60 | $comments = get_comments( |
| | 61 | array( |
| | 62 | 'post_id' => $current_post_id, |
| | 63 | 'orderby' => 'comment_date_gmt', |
| | 64 | 'order' => get_option( 'comment_order', 'asc' ), /* Respect comment order from Settings » Discussion. */ |
| | 65 | 'status' => 'approve', |
| | 66 | 'number' => 20, /* Only retrieve the last 20 comments, as the end goal is just 6 unique authors */ |
| | 67 | ) |
| | 68 | ); |
| | 69 | |
| | 70 | $authors = array(); |
| | 71 | foreach ( $comments as $comment ) { |
| | 72 | $authors[] = ( (int) $comment->user_id > 0 ) ? (int) $comment->user_id : $comment->comment_author_email; |
| | 73 | } |
| | 74 | |
| | 75 | $authors = array_unique( $authors ); |
| | 76 | $discussion = (object) array( |
| | 77 | 'authors' => array_slice( $authors, 0, 6 ), /* Six unique authors commenting on the post. */ |
| | 78 | 'responses' => get_comments_number( $current_post_id ), /* Number of responses. */ |
| | 79 | ); |
| | 80 | |
| | 81 | return $discussion; |
| | 82 | } |
| | 83 | |
| | 84 | /** |
| | 85 | * Convert HSL to HEX colors |
| | 86 | */ |
| | 87 | function twentynineteen_hsl_hex( $h, $s, $l, $to_hex = true ) { |
| | 88 | |
| | 89 | $h /= 360; |
| | 90 | $s /= 100; |
| | 91 | $l /= 100; |
| | 92 | |
| | 93 | $r = $l; |
| | 94 | $g = $l; |
| | 95 | $b = $l; |
| | 96 | $v = ( $l <= 0.5 ) ? ( $l * ( 1.0 + $s ) ) : ( $l + $s - $l * $s ); |
| | 97 | if ( $v > 0 ) { |
| | 98 | $m; |
| | 99 | $sv; |
| | 100 | $sextant; |
| | 101 | $fract; |
| | 102 | $vsf; |
| | 103 | $mid1; |
| | 104 | $mid2; |
| | 105 | |
| | 106 | $m = $l + $l - $v; |
| | 107 | $sv = ( $v - $m ) / $v; |
| | 108 | $h *= 6.0; |
| | 109 | $sextant = floor( $h ); |
| | 110 | $fract = $h - $sextant; |
| | 111 | $vsf = $v * $sv * $fract; |
| | 112 | $mid1 = $m + $vsf; |
| | 113 | $mid2 = $v - $vsf; |
| | 114 | |
| | 115 | switch ( $sextant ) { |
| | 116 | case 0: |
| | 117 | $r = $v; |
| | 118 | $g = $mid1; |
| | 119 | $b = $m; |
| | 120 | break; |
| | 121 | case 1: |
| | 122 | $r = $mid2; |
| | 123 | $g = $v; |
| | 124 | $b = $m; |
| | 125 | break; |
| | 126 | case 2: |
| | 127 | $r = $m; |
| | 128 | $g = $v; |
| | 129 | $b = $mid1; |
| | 130 | break; |
| | 131 | case 3: |
| | 132 | $r = $m; |
| | 133 | $g = $mid2; |
| | 134 | $b = $v; |
| | 135 | break; |
| | 136 | case 4: |
| | 137 | $r = $mid1; |
| | 138 | $g = $m; |
| | 139 | $b = $v; |
| | 140 | break; |
| | 141 | case 5: |
| | 142 | $r = $v; |
| | 143 | $g = $m; |
| | 144 | $b = $mid2; |
| | 145 | break; |
| | 146 | } |
| | 147 | } |
| | 148 | $r = round( $r * 255, 0 ); |
| | 149 | $g = round( $g * 255, 0 ); |
| | 150 | $b = round( $b * 255, 0 ); |
| | 151 | |
| | 152 | if ( $to_hex ) { |
| | 153 | |
| | 154 | $r = ( $r < 15 ) ? '0' . dechex( $r ) : dechex( $r ); |
| | 155 | $g = ( $g < 15 ) ? '0' . dechex( $g ) : dechex( $g ); |
| | 156 | $b = ( $b < 15 ) ? '0' . dechex( $b ) : dechex( $b ); |
| | 157 | |
| | 158 | return "#$r$g$b"; |
| | 159 | |
| | 160 | } |
| | 161 | |
| | 162 | return "rgb($r, $g, $b)"; |
| | 163 | } |
| | 164 | No newline at end of file |