← All changes | modules/shortcodes/slideshare.php +137 -0 16.2-beta → 16.3 View file →

		@@ -1,0 +1,137 @@
	1	+<?php
	2	+/**
	3	+ * Slideshare shortcode
	4	+ *
	5	+ * Formats:
	6	+ * Old style (still compatible): [slideshare id=5342235&doc=camprock-101002163655-phpapp01&w=300&h=200]
	7	+ * New style: [slideshare id=5342235&w=300&h=200&fb=0&mw=0&mh=0&sc=no]
	8	+ *
	9	+ * Legend:
	10	+ * id = Document ID provided by Slideshare
	11	+ * w = Width of iFrame (int)
	12	+ * h = Height of iFrame (int)
	13	+ * fb = iFrame frameborder (int)
	14	+ * mw = iFrame marginwidth (int)
	15	+ * mh = iFrame marginheight (int)
	16	+ * sc = iFrame Scrollbar (yes/no)
	17	+ * pro = Slideshare Pro (yes/no)
	18	+ * style = Inline CSS (string)
	19	+ *
	20	+ * @package automattic/jetpack
	21	+ */
	22	+
	23	+if ( ! defined( 'ABSPATH' ) ) {
	24	+ exit( 0 );
	25	+}
	26	+
	27	+/**
	28	+ * Register and display shortcode.
	29	+ *
	30	+ * @param array $atts Shortcode attributes.
	31	+ */
	32	+function slideshare_shortcode( $atts ) {
	33	+ global $content_width;
	34	+
	35	+ $params = shortcode_new_to_old_params( $atts );
	36	+ parse_str( $params, $arguments );
	37	+
	38	+ if ( empty( $arguments ) ) {
	39	+ return '<!-- SlideShare error: no arguments -->';
	40	+ }
	41	+
	42	+ $attr = shortcode_atts(
	43	+ array(
	44	+ 'id' => '',
	45	+ 'w' => '',
	46	+ 'h' => '',
	47	+ 'fb' => '',
	48	+ 'mw' => '',
	49	+ 'mh' => '',
	50	+ 'sc' => '',
	51	+ 'pro' => '',
	52	+ 'style' => '',
	53	+ ),
	54	+ $arguments
	55	+ );
	56	+
	57	+ // check that the Slideshare ID contains letters, numbers and query strings.
	58	+ $pattern = '/[^-_a-zA-Z0-9?=&]/';
	59	+ if ( empty( $attr['id'] ) || preg_match( $pattern, $attr['id'] ) ) {
	60	+ return '<!-- SlideShare error: id is missing or has illegal characters -->';
	61	+ }
	62	+
	63	+ // check the width/height.
	64	+ $w = (int) $attr['w'];
	65	+
	66	+ // If no width was specified (or uses the wrong format), and if we have a $content_width, use that.
	67	+ if ( empty( $w ) && ! empty( $content_width ) ) {
	68	+ $w = (int) $content_width;
	69	+ } elseif ( $w < 300 || $w > 1600 ) { // If width was specified, but is too small/large, set default value.
	70	+ $w = 425;
	71	+ }
	72	+
	73	+ $h = ceil( $w * 348 / 425 ); // Note: user-supplied height is ignored.
	74	+
	75	+ if ( ! empty( $attr['pro'] ) ) {
	76	+ $source = 'https://www.slideshare.net/slidesharepro/' . $attr['id'];
	77	+ } else {
	78	+ $source = 'https://www.slideshare.net/slideshow/embed_code/' . $attr['id'];
	79	+ }
	80	+
	81	+ if ( isset( $attr['rel'] ) ) {
	82	+ $source = add_query_arg( 'rel', (int) $attr['rel'], $source );
	83	+ }
	84	+
	85	+ if ( ! empty( $attr['startSlide'] ) ) {
	86	+ $source = add_query_arg( 'startSlide', (int) $attr['startSlide'], $source );
	87	+ }
	88	+
	89	+ $player = sprintf( "<iframe src='%s' width='%d' height='%d'", esc_url( $source ), $w, $h );
	90	+
	91	+ // check the frameborder.
	92	+ if ( ! empty( $attr['fb'] ) || '0' === $attr['fb'] ) {
	93	+ $player .= " frameborder='" . (int) $attr['fb'] . "'";
	94	+ }
	95	+
	96	+ $is_amp = ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() );
	97	+
	98	+ if ( ! $is_amp ) {
	99	+ // check the margin width; if not empty, cast as int.
	100	+ if ( ( ! empty( $attr['mw'] ) || '0' === $attr['mw'] ) ) {
	101	+ $player .= " marginwidth='" . (int) $attr['mw'] . "'";
	102	+ }
	103	+
	104	+ // check the margin height, if not empty, cast as int.
	105	+ if ( ( ! empty( $attr['mh'] ) || '0' === $attr['mh'] ) ) {
	106	+ $player .= " marginheight='" . (int) $attr['mh'] . "'";
	107	+ }
	108	+ }
	109	+
	110	+ if ( ! empty( $attr['style'] ) ) {
	111	+ $player .= " style='" . esc_attr( $attr['style'] ) . "'";
	112	+ }
	113	+
	114	+ // check the scrollbar; cast as a lowercase string for comparison.
	115	+ if ( ! empty( $attr['sc'] ) ) {
	116	+ $sc = strtolower( $attr['sc'] );
	117	+
	118	+ if ( in_array( $sc, array( 'yes', 'no' ), true ) ) {
	119	+ $player .= " scrolling='" . $sc . "'";
	120	+ }
	121	+ }
	122	+
	123	+ $player .= ' sandbox="allow-popups allow-scripts allow-same-origin allow-presentation" allowfullscreen webkitallowfullscreen mozallowfullscreen></iframe>';
	124	+
	125	+ /**
	126	+ * Filter the returned SlideShare shortcode.
	127	+ *
	128	+ * @module shortcodes
	129	+ *
	130	+ * @since 4.7.0
	131	+ *
	132	+ * @param string $player The iframe to return.
	133	+ * @param array $atts The attributes specified in the shortcode.
	134	+ */
	135	+ return apply_filters( 'jetpack_slideshare_shortcode', $player, $atts );
	136	+}
	137	+add_shortcode( 'slideshare', 'slideshare_shortcode' );