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vr.php
161 lines
| 1 | <?php |
| 2 | /** |
| 3 | * VR Viewer Shortcode |
| 4 | * converts [vr] shortcode to an iframe viewer hosted on vr.me.sh |
| 5 | * |
| 6 | * @package automattic/jetpack |
| 7 | */ |
| 8 | |
| 9 | /** |
| 10 | * Scrub URL paramaters for VR viewer |
| 11 | * |
| 12 | * @param array $params { |
| 13 | * parameter array which is passed to the jetpack_vr_viewer. |
| 14 | * |
| 15 | * @type string $url url of 360 media |
| 16 | * @type string $guid guid for videopress |
| 17 | * @type string $view cinema, 360 - controls if panaroma view, or 360 |
| 18 | * @type string $rotation number for rotating media |
| 19 | * @type string $preview show preview image or not |
| 20 | * } |
| 21 | * |
| 22 | * @return array|false $url_params Array of URL parameters. |
| 23 | */ |
| 24 | function jetpack_vr_viewer_get_viewer_url_params( $params ) { |
| 25 | $url_params = array(); |
| 26 | |
| 27 | if ( isset( $params['rotation'] ) ) { |
| 28 | $url_params['rotation'] = (int) $params['rotation']; |
| 29 | } |
| 30 | |
| 31 | if ( isset( $params['view'] ) && in_array( $params['view'], array( 'cinema', '360' ), true ) ) { |
| 32 | $url_params['view'] = $params['view']; |
| 33 | } |
| 34 | |
| 35 | if ( isset( $params['preview'] ) && $params['preview'] ) { |
| 36 | $url_params['preview'] = 1; |
| 37 | } |
| 38 | |
| 39 | if ( isset( $params['url'] ) ) { |
| 40 | return array_merge( $url_params, array( 'url' => $params['url'] ) ); |
| 41 | } elseif ( isset( $params['guid'] ) ) { |
| 42 | return array_merge( $url_params, array( 'guid' => $params['guid'] ) ); |
| 43 | } |
| 44 | |
| 45 | return false; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Get padding for IFRAME depending on view type |
| 50 | * |
| 51 | * @param string $view string cinema, 360 - default cinema. |
| 52 | * |
| 53 | * @return string $css padding |
| 54 | */ |
| 55 | function jetpack_vr_viewer_iframe_padding( $view ) { |
| 56 | if ( '360' === $view ) { |
| 57 | return '100%'; // 1:1 square aspect for 360 |
| 58 | } |
| 59 | |
| 60 | return '50%'; // 2:1 panorama aspect |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Create HTML for VR Viewer IFRAME and wrapper |
| 65 | * The viewer code is hosted on vr.me.sh site which is then displayed |
| 66 | * within posts via an IFRAME. This function returns the IFRAME html. |
| 67 | * |
| 68 | * @param array $url_params { |
| 69 | * parameter array which is passed to the jetpack_vr_viewer. |
| 70 | * |
| 71 | * @type string $url url of 360 media |
| 72 | * @type string $guid guid for videopress |
| 73 | * @type string $view cinema, 360 - controls if panaroma view, or 360 |
| 74 | * @type string $rotation number for rotating media |
| 75 | * @type string $preview show preview image or not |
| 76 | * } |
| 77 | * |
| 78 | * @return string $rtn an iframe for viewer. |
| 79 | */ |
| 80 | function jetpack_vr_viewer_get_html( $url_params ) { |
| 81 | global $content_width; |
| 82 | |
| 83 | $iframe = add_query_arg( $url_params, 'https://vr.me.sh/view/' ); |
| 84 | |
| 85 | // set some defaults. |
| 86 | $maxwidth = ( is_numeric( $content_width ) && $content_width > 0 ) ? $content_width : 720; |
| 87 | $view = ( isset( $url_params['view'] ) ) ? $url_params['view'] : 'cinema'; |
| 88 | |
| 89 | // If the shortcode is displayed in a WPCOM notification, display a simple link only. |
| 90 | if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { |
| 91 | require_once WP_CONTENT_DIR . '/lib/display-context.php'; |
| 92 | $context = A8C\Display_Context\get_current_context(); |
| 93 | if ( A8C\Display_Context\NOTIFICATIONS === $context ) { |
| 94 | return sprintf( |
| 95 | '<a href="%1$s" target="_blank" rel="noopener noreferrer">%1$s</a>', |
| 96 | esc_url( $iframe ) |
| 97 | ); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | $rtn = '<div style="position: relative; max-width: ' . $maxwidth . 'px; margin-left: auto; margin-right: auto; overflow: hidden; margin-bottom: 1em;">'; |
| 102 | $rtn .= '<div style="padding-top: ' . jetpack_vr_viewer_iframe_padding( $view ) . ';"></div>'; |
| 103 | $rtn .= '<iframe style="position: absolute; top: 0; right: 0; bottom: 0; left: 0; height: 100%" allowfullscreen="true" frameborder="0" width="100%" height="300" src="' . esc_url( $iframe ) . '">'; |
| 104 | $rtn .= '</iframe>'; |
| 105 | $rtn .= '</div>'; |
| 106 | |
| 107 | return $rtn; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * Convert [vr] shortcode to viewer |
| 112 | * |
| 113 | * Shortcode example: |
| 114 | * [vr url="https://en-blog.files.wordpress.com/2016/12/regents_park.jpg" view="360"] |
| 115 | * |
| 116 | * VR Viewer embed code: |
| 117 | * <div style="position: relative; max-width: 720px; margin-left: auto; margin-right: auto; overflow: hidden;"> |
| 118 | * <div style="padding-top: 100%;"></div> |
| 119 | * <iframe style="position: absolute; top: 0; right: 0; bottom: 0; left: 0; height: 100%" allowfullscreen="true" frameborder="0" width="100%" height="400" src="https://vr.me.sh/view/?view=360&url=https://en-blog.files.wordpress.com/2016/12/regents_park.jpg"> |
| 120 | * </iframe> |
| 121 | * </div> |
| 122 | * |
| 123 | * @param array $atts Shortcode attributes. |
| 124 | * |
| 125 | * @return string complete vr viewer html |
| 126 | */ |
| 127 | function jetpack_vr_viewer_shortcode( $atts ) { |
| 128 | $params = shortcode_atts( |
| 129 | array( |
| 130 | 0 => null, |
| 131 | 'url' => null, |
| 132 | 'src' => null, |
| 133 | 'guid' => null, |
| 134 | 'rotation' => null, |
| 135 | 'view' => null, |
| 136 | 'preview' => false, |
| 137 | ), |
| 138 | $atts |
| 139 | ); |
| 140 | |
| 141 | // We offer a few ways to specify the URL. |
| 142 | if ( $params[0] ) { |
| 143 | $params['url'] = $params[0]; |
| 144 | } elseif ( $params['src'] ) { |
| 145 | $params['url'] = $params['src']; |
| 146 | } |
| 147 | |
| 148 | $url_params = jetpack_vr_viewer_get_viewer_url_params( $params ); |
| 149 | if ( $url_params ) { |
| 150 | return jetpack_vr_viewer_get_html( $url_params ); |
| 151 | } |
| 152 | |
| 153 | // add check for user. |
| 154 | if ( current_user_can( 'edit_posts' ) ) { |
| 155 | return '[vr] shortcode requires a data source to be given'; |
| 156 | } else { |
| 157 | return ''; |
| 158 | } |
| 159 | } |
| 160 | add_shortcode( 'vr', 'jetpack_vr_viewer_shortcode' ); |
| 161 |