← All changes | includes/class-form-preview.php +145 -140 1.6.3 → 1.3.2 View file →

		@@ -1,140 +1,145 @@
1		-<?php
2		-
3		-/**
4		- * The preview class
5		- *
6		- * This is a clever technique to preview a form without having to set any placeholder page by
7		- * setting the page templates to singular pages (page.php, single.php and index.php). Setting
8		- * the posts per page to 1 and changing the page title and contents dynamiclly allows us to
9		- * preview the form without any placeholder page.
10		- *
11		- * This technique requires the theme to have at least the above mentioned templates in the theme
12		- * and requires to have the WordPress Loop, otherwise we wouldn't be able to set the title and
13		- * the page content dynamically.
14		- *
15		- * The technique is borrowed from Ninja Forms (thanks guys!)
16		- */
17		-class WeForms_Form_Preview {
18		-
19		- /**
20		- * Form id
21		- *
22		- * @var int
23		- */
24		- private $form_id;
25		-
26		- /**
27		- * is_preview
28		- *
29		- * @var string
30		- */
31		- private $is_preview = true;
32		-
33		- public function __construct() {
34		- if ( !isset( $_GET['weforms_preview'] ) && empty( $_GET['weforms'] ) ) {
35		- return;
36		- }
37		-
38		- if ( ! empty( $_GET['weforms'] ) ) {
39		-
40		- $hash = explode("_", base64_decode( sanitize_text_field( wp_unslash( $_GET['weforms'] ) ) ) );
41		- $_hash = $hash[0];
42		- $this->form_id = intval( end( $hash ) );
43		- $form = weforms()->form->get( $this->form_id );
44		-
45		- if ( !$form ) {
46		- return;
47		- }
48		-
49		- $form_settings = $form->get_settings();
50		-
51		- if ( !isset( $form_settings['sharing_on'] ) || $form_settings['sharing_on'] !== 'on' ) {
52		- return;
53		- }
54		-
55		- if ( !isset( $form_settings['sharing_hash'] ) || $form_settings['sharing_hash'] !== $_hash ) {
56		- return;
57		- }
58		-
59		- $this->is_preview = false;
60		- } else {
61		- $this->form_id = isset( $_GET['form_id'] ) ? intval( $_GET['form_id'] ) : 0;
62		- }
63		-
64		- add_action( 'pre_get_posts', [ $this, 'pre_get_posts' ] );
65		- add_filter( 'template_include', [ $this, 'template_include' ] );
66		-
67		- add_filter( 'the_title', [ $this, 'the_title' ] );
68		- add_filter( 'the_content', [ $this, 'the_content' ] );
69		- add_filter( 'get_the_excerpt', [ $this, 'the_content' ] );
70		- add_filter( 'post_thumbnail_html', '__return_empty_string' );
71		- }
72		-
73		- /**
74		- * Set the page title
75		- *
76		- * @param string $title
77		- *
78		- * @return string
79		- */
80		- public function the_title( $title ) {
81		- if ( !in_the_loop() ) {
82		- return $title;
83		- }
84		-
85		- $form = weform_get_form( $this->form_id );
86		-
87		- if ( !$form ) {
88		- return $title;
89		- }
90		-
91		- $preview = $this->is_preview ? 'Preview' : '';
92		-
93		- return $form->get_name() . ' ' . $preview;
94		- }
95		-
96		- /**
97		- * Set the content of the page
98		- *
99		- * @param string $content
100		- *
101		- * @return string
102		- */
103		- public function the_content( $content ) {
104		- if ( $this->is_preview ) {
105		- if ( !is_user_logged_in() ) {
106		- return __( 'You must be logged in to preview this form.', 'weforms' );
107		- }
108		-
109		- $viewing_capability = apply_filters( 'weforms_preview_form_cap', 'edit_posts' ); // at least has to be contributor
110		-
111		- if ( !current_user_can( $viewing_capability ) ) {
112		- return __( 'Sorry, you are not eligible to preview this form.', 'weforms' );
113		- }
114		- }
115		-
116		- return do_shortcode( sprintf( '[weforms id="%d"]', $this->form_id ) );
117		- }
118		-
119		- /**
120		- * Set the posts to one
121		- *
122		- * @param WP_Query $query
123		- *
124		- * @return void
125		- */
126		- public function pre_get_posts( $query ) {
127		- if ( $query->is_main_query() ) {
128		- $query->set( 'posts_per_page', 1 );
129		- }
130		- }
131		-
132		- /**
133		- * Limit the page templates to singular pages only
134		- *
135		- * @return string
136		- */
137		- public function template_include() {
138		- return locate_template( [ 'page.php', 'single.php', 'index.php' ] );
139		- }
140		-}
	1	+<?php
	2	+
	3	+/**
	4	+ * The preview class
	5	+ *
	6	+ * This is a clever technique to preview a form without having to set any placeholder page by
	7	+ * setting the page templates to singular pages (page.php, single.php and index.php). Setting
	8	+ * the posts per page to 1 and changing the page title and contents dynamiclly allows us to
	9	+ * preview the form without any placeholder page.
	10	+ *
	11	+ * This technique requires the theme to have at least the above mentioned templates in the theme
	12	+ * and requires to have the WordPress Loop, otherwise we wouldn't be able to set the title and
	13	+ * the page content dynamically.
	14	+ *
	15	+ * The technique is borrowed from Ninja Forms (thanks guys!)
	16	+ */
	17	+class WeForms_Form_Preview {
	18	+
	19	+ /**
	20	+ * Form id
	21	+ *
	22	+ * @var integer
	23	+ */
	24	+ private $form_id;
	25	+
	26	+ /**
	27	+ * is_preview
	28	+ *
	29	+ * @var string
	30	+ */
	31	+ private $is_preview = true;
	32	+
	33	+ function __construct() {
	34	+
	35	+ if ( ! isset( $_GET['weforms_preview'] ) && empty( $_GET['weforms'] ) ) {
	36	+ return;
	37	+ }
	38	+
	39	+ if ( ! empty( $_GET['weforms'] ) ) {
	40	+
	41	+ $hash = explode("_", base64_decode( $_GET['weforms'] ));
	42	+ $_hash = $hash[0];
	43	+ $this->form_id = intval( end($hash) );
	44	+ $form = weforms()->form->get( $this->form_id );
	45	+
	46	+ if ( ! $form ) {
	47	+ return;
	48	+ }
	49	+
	50	+ $form_settings = $form->get_settings();
	51	+
	52	+ if ( ! isset($form_settings['sharing_on']) || $form_settings['sharing_on'] !== 'on' ) {
	53	+ return;
	54	+ }
	55	+
	56	+ if ( ! isset($form_settings['sharing_hash']) || $form_settings['sharing_hash'] !== $_hash ) {
	57	+ return;
	58	+ }
	59	+
	60	+ $this->is_preview = false;
	61	+
	62	+ } else {
	63	+
	64	+ $this->form_id = isset( $_GET['form_id'] ) ? intval( $_GET['form_id'] ) : 0;
	65	+ }
	66	+
	67	+ add_action( 'pre_get_posts', array( $this, 'pre_get_posts' ) );
	68	+ add_filter( 'template_include', array( $this, 'template_include' ) );
	69	+
	70	+ add_filter( 'the_title', array( $this, 'the_title' ) );
	71	+ add_filter( 'the_content', array( $this, 'the_content' ) );
	72	+ add_filter( 'get_the_excerpt', array( $this, 'the_content' ) );
	73	+ add_filter( 'post_thumbnail_html', '__return_empty_string' );
	74	+ }
	75	+
	76	+ /**
	77	+ * Set the page title
	78	+ *
	79	+ * @param string $title
	80	+ *
	81	+ * @return string
	82	+ */
	83	+ public function the_title( $title ) {
	84	+ if ( ! in_the_loop() ) {
	85	+ return $title;
	86	+ }
	87	+
	88	+ $form = weform_get_form( $this->form_id );
	89	+
	90	+ if ( ! $form ) {
	91	+ return $title;
	92	+ }
	93	+
	94	+ $preview = $this->is_preview ? 'Preview' : '';
	95	+
	96	+ return $form->get_name() . ' ' . $preview;
	97	+ }
	98	+
	99	+ /**
	100	+ * Set the content of the page
	101	+ *
	102	+ * @param string $content
	103	+ *
	104	+ * @return string
	105	+ */
	106	+ public function the_content( $content ) {
	107	+
	108	+ if ( $this->is_preview ) {
	109	+
	110	+ if ( ! is_user_logged_in() ) {
	111	+ return __( 'You must be logged in to preview this form.', 'weforms' );
	112	+ }
	113	+
	114	+ $viewing_capability = apply_filters( 'weforms_preview_form_cap', 'edit_posts' ); // at least has to be contributor
	115	+
	116	+ if ( ! current_user_can( $viewing_capability ) ) {
	117	+ return __( 'Sorry, you are not eligible to preview this form.', 'weforms' );
	118	+ }
	119	+ }
	120	+
	121	+ return do_shortcode( sprintf( '[weforms id="%d"]', $this->form_id ) );
	122	+ }
	123	+
	124	+ /**
	125	+ * Set the posts to one
	126	+ *
	127	+ * @param WP_Query $query
	128	+ *
	129	+ * @return void
	130	+ */
	131	+ public function pre_get_posts( $query ) {
	132	+ if ( $query->is_main_query() ) {
	133	+ $query->set( 'posts_per_page', 1 );
	134	+ }
	135	+ }
	136	+
	137	+ /**
	138	+ * Limit the page templates to singular pages only
	139	+ *
	140	+ * @return string
	141	+ */
	142	+ function template_include() {
	143	+ return locate_template( array( 'page.php', 'single.php', 'index.php' ) );
	144	+ }
	145	+}