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127 lines
3.5 KiB
127 lines
3.5 KiB
5 years ago
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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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if ( ! defined( 'ABSPATH' ) ) {
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exit;
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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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/** @var bool */
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private $forcexhtml = false;
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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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public function read( $options )
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{
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// Remove the HTML comments?
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$this->keepcomments = (bool) $options['keepcomments'];
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// Filter to force xhtml.
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$this->forcexhtml = (bool) apply_filters( 'autoptimize_filter_html_forcexhtml', false );
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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, $this->exclude );
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}
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// Nothing else for HTML!
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return true;
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}
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/**
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* Minifies HTML.
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*
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* @return bool
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*/
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public function minify()
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{
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$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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// 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, $this->content );
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}
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}
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// Noptimize.
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$this->content = $this->hide_noptimize( $this->content );
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// Preparing options for Minify_HTML.
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$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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$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( $tmp_content );
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}
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// Restore noptimize.
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$this->content = $this->restore_noptimize( $this->content );
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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, $this->content );
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}
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}
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// Revslider data attribs somehow suffer from HTML optimization, this fixes that!
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if ( class_exists( 'RevSlider' ) && apply_filters( 'autoptimize_filter_html_dataattrib_cleanup', false ) ) {
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$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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return true;
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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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* 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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