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<?php |
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/** |
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* Handles minifying HTML markup. |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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|
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class autoptimizeHTML extends autoptimizeBase |
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{ |
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/** |
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* Whether HTML comments are kept. |
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* |
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* @var bool |
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*/ |
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private $keepcomments = false; |
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|
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/** |
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* Things to exclude from being minifed. |
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* |
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* @var array |
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*/ |
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private $exclude = array( |
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'<!-- ngg_resource_manager_marker -->', |
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'<!--noindex-->', |
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'<!--/noindex-->', |
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); |
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|
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public function read( $options ) |
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{ |
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// Remove the HTML comments? |
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$this->keepcomments = (bool) $options['keepcomments']; |
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|
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// Filter to force xhtml. |
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$this->forcexhtml = (bool) apply_filters( 'autoptimize_filter_html_forcexhtml', false ); |
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|
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// Filterable strings to be excluded from HTML minification. |
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$exclude = apply_filters( 'autoptimize_filter_html_exclude', '' ); |
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if ( '' !== $exclude ) { |
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$exclude_arr = array_filter( array_map( 'trim', explode( ',', $exclude ) ) ); |
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$this->exclude = array_merge( $exclude_arr, $this->exclude ); |
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} |
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|
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// Nothing else for HTML! |
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return true; |
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} |
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|
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/** |
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* Minifies HTML. |
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* |
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* @return bool |
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*/ |
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public function minify() |
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{ |
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$noptimize = apply_filters( 'autoptimize_filter_html_noptimize', false, $this->content ); |
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if ( $noptimize ) { |
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return false; |
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} |
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|
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// Wrap the to-be-excluded strings in noptimize tags. |
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foreach ( $this->exclude as $str ) { |
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if ( false !== strpos( $this->content, $str ) ) { |
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$replacement = '<!--noptimize-->' . $str . '<!--/noptimize-->'; |
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$this->content = str_replace( $str, $replacement, $this->content ); |
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} |
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} |
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|
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// Noptimize. |
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$this->content = $this->hide_noptimize( $this->content ); |
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|
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// Preparing options for Minify_HTML. |
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$options = array( 'keepComments' => $this->keepcomments ); |
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if ( $this->forcexhtml ) { |
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$options['xhtml'] = true; |
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} |
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|
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$tmp_content = Minify_HTML::minify( $this->content, $options ); |
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if ( ! empty( $tmp_content ) ) { |
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$this->content = $tmp_content; |
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unset( $tmp_content ); |
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} |
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|
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// Restore noptimize. |
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$this->content = $this->restore_noptimize( $this->content ); |
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|
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// Remove the noptimize-wrapper from around the excluded strings. |
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foreach ( $this->exclude as $str ) { |
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$replacement = '<!--noptimize-->' . $str . '<!--/noptimize-->'; |
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if ( false !== strpos( $this->content, $replacement ) ) { |
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$this->content = str_replace( $replacement, $str, $this->content ); |
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} |
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} |
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|
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// Revslider data attribs somehow suffer from HTML optimization, this fixes that! |
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if ( class_exists( 'RevSlider' ) && apply_filters( 'autoptimize_filter_html_dataattrib_cleanup', false ) ) { |
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$this->content = preg_replace( '#\n(data-.*$)\n#Um', ' $1 ', $this->content ); |
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$this->content = preg_replace( '#<[^>]*(=\"[^"\'<>\s]*\")(\w)#', '$1 $2', $this->content ); |
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} |
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|
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return true; |
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} |
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|
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/** |
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* Doesn't do much in case of HTML (no cache in css/js sense there) |
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* |
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* @return true |
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*/ |
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public function cache() |
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{ |
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return true; |
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} |
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|
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/** |
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* Returns the HTML markup. |
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* |
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* @return string |
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*/ |
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public function getcontent() |
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{ |
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return $this->content; |
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} |
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} |
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|
