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Shortcodes: Add the pre_do_shortcode_tag filter.

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This filter allows the shortcode generation process to be short-circuited, so expensive short codes can be cached and returned immediately.

Props ideag.
Fixes #37906.



git-svn-id: https://develop.svn.wordpress.org/trunk@38506 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Gary Pendergast
2016-09-02 00:09:42 +00:00
parent 74cee3d59c
commit 6d59b289a9
2 changed files with 85 additions and 0 deletions
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67
tests/phpunit/tests/shortcode.php
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@@ -676,4 +676,71 @@ EOF;
$expected = "<img alt=\"Hello :-) World\" />\n";
$this->assertEquals( $expected, $out );
}
/**
* @ticket 37906
*/
public function test_pre_do_shortcode_tag() {
// does nothing if no filters are set up
$str = 'pre_do_shortcode_tag';
add_shortcode( $str, array( $this, '_shortcode_pre_do_shortcode_tag' ) );
$result_nofilter = do_shortcode( "[{$str}]" );
$this->assertSame( 'foo', $result_nofilter );
// short-circuit with filter
add_filter( 'pre_do_shortcode_tag', array( $this, '_filter_pre_do_shortcode_tag_bar' ) );
$result_filter = do_shortcode( "[{$str}]" );
$this->assertSame( 'bar', $result_filter );
// respect priority
add_filter( 'pre_do_shortcode_tag', array( $this, '_filter_pre_do_shortcode_tag_p11' ), 11 );
$result_priority = do_shortcode( "[{$str}]" );
$this->assertSame( 'p11', $result_priority );
// pass arguments
$arr = array(
'return' => 'p11',
'key' => $str,
'atts' => array( 'a'=>'b', 'c'=>'d' ),
'm' => array(
"[{$str} a='b' c='d']",
"",
$str,
" a='b' c='d'",
"",
"",
"",
),
);
add_filter( 'pre_do_shortcode_tag', array( $this, '_filter_pre_do_shortcode_tag_attr' ), 12, 4 );
$result_atts = do_shortcode( "[{$str} a='b' c='d']" );
$this->assertSame( wp_json_encode( $arr ), $result_atts );
remove_filter( 'pre_do_shortcode_tag', array( $this, '_filter_pre_do_shortcode_tag_attr' ), 12, 4 );
remove_filter( 'pre_do_shortcode_tag', array( $this, '_filter_pre_do_shortcode_tag_p11' ), 11 );
remove_filter( 'pre_do_shortcode_tag', array( $this, '_filter_pre_do_shortcode_tag_bar' ) );
remove_shortcode( $str, array( $this, '_shortcode_pre_do_shortcode_tag' ) );
}
public function _shortcode_pre_do_shortcode_tag( $atts = array(), $content = '' ) {
return 'foo';
}
public function _filter_pre_do_shortcode_tag_bar() {
return 'bar';
}
public function _filter_pre_do_shortcode_tag_p11() {
return 'p11';
}
public function _filter_pre_do_shortcode_tag_attr( $return, $key, $atts, $m ){
$arr = array(
'return' => $return,
'key' => $key,
'atts' => $atts,
'm' => $m,
);
return wp_json_encode( $arr );
}
}