wp-content/themes/twentyseventeen/assets/js/customize-preview.js

   1 /**
   2  * File customize-preview.js.
   3  *
   4  * Instantly live-update customizer settings in the preview for improved user experience.
   5  */
   6
   7 (function( $ ) {
   8
   9         // Collect information from customize-controls.js about which panels are opening.
  10         wp.customize.bind( 'preview-ready', function() {
  11
  12                 // Initially hide the theme option placeholders on load
  13                 $( '.panel-placeholder' ).hide();
  14
  15                 wp.customize.preview.bind( 'section-highlight', function( data ) {
  16
  17                         // Only on the front page.
  18                         if ( ! $( 'body' ).hasClass( 'twentyseventeen-front-page' ) ) {
  19                                 return;
  20                         }
  21
  22                         // When the section is expanded, show and scroll to the content placeholders, exposing the edit links.
  23                         if ( true === data.expanded ) {
  24                                 $( 'body' ).addClass( 'highlight-front-sections' );
  25                                 $( '.panel-placeholder' ).slideDown( 200, function() {
  26                                         $.scrollTo( $( '#panel1' ), {
  27                                                 duration: 600,
  28                                                 offset: { 'top': -70 } // Account for sticky menu.
  29                                         });
  30                                 });
  31
  32                         // If we've left the panel, hide the placeholders and scroll back to the top.
  33                         } else {
  34                                 $( 'body' ).removeClass( 'highlight-front-sections' );
  35                                 // Don't change scroll when leaving - it's likely to have unintended consequences.
  36                                 $( '.panel-placeholder' ).slideUp( 200 );
  37                         }
  38                 });
  39         });
  40
  41         // Site title and description.
  42         wp.customize( 'blogname', function( value ) {
  43                 value.bind( function( to ) {
  44                         $( '.site-title a' ).text( to );
  45                 });
  46         });
  47         wp.customize( 'blogdescription', function( value ) {
  48                 value.bind( function( to ) {
  49                         $( '.site-description' ).text( to );
  50                 });
  51         });
  52
  53         // Header text color.
  54         wp.customize( 'header_textcolor', function( value ) {
  55                 value.bind( function( to ) {
  56                         if ( 'blank' === to ) {
  57                                 $( '.site-title, .site-description' ).css({
  58                                         clip: 'rect(1px, 1px, 1px, 1px)',
  59                                         position: 'absolute'
  60                                 });
  61                                 // Add class for different logo styles if title and description are hidden.
  62                                 $( 'body' ).addClass( 'title-tagline-hidden' );
  63                         } else {
  64
  65                                 // Check if the text color has been removed and use default colors in theme stylesheet.
  66                                 if ( ! to.length ) {
  67                                         $( '#twentyseventeen-custom-header-styles' ).remove();
  68                                 }
  69                                 $( '.site-title, .site-description' ).css({
  70                                         clip: 'auto',
  71                                         position: 'relative'
  72                                 });
  73                                 $( '.site-branding, .site-branding a, .site-description, .site-description a' ).css({
  74                                         color: to
  75                                 });
  76                                 // Add class for different logo styles if title and description are visible.
  77                                 $( 'body' ).removeClass( 'title-tagline-hidden' );
  78                         }
  79                 });
  80         });
  81
  82         // Color scheme.
  83         wp.customize( 'colorscheme', function( value ) {
  84                 value.bind( function( to ) {
  85
  86                         // Update color body class.
  87                         $( 'body' )
  88                                 .removeClass( 'colors-light colors-dark colors-custom' )
  89                                 .addClass( 'colors-' + to );
  90                 });
  91         });
  92
  93         // Custom color hue.
  94         wp.customize( 'colorscheme_hue', function( value ) {
  95                 value.bind( function( to ) {
  96
  97                         // Update custom color CSS.
  98                         var style = $( '#custom-theme-colors' ),
  99                                 hue = style.data( 'hue' ),
 100                                 css = style.html();
 101
 102                         // Equivalent to css.replaceAll, with hue followed by comma to prevent values with units from being changed.
 103                         css = css.split( hue + ',' ).join( to + ',' );
 104                         style.html( css ).data( 'hue', to );
 105                 });
 106         });
 107
 108         // Page layouts.
 109         wp.customize( 'page_layout', function( value ) {
 110                 value.bind( function( to ) {
 111                         if ( 'one-column' === to ) {
 112                                 $( 'body' ).addClass( 'page-one-column' ).removeClass( 'page-two-column' );
 113                         } else {
 114                                 $( 'body' ).removeClass( 'page-one-column' ).addClass( 'page-two-column' );
 115                         }
 116                 } );
 117         } );
 118
 119         // Whether a header image is available.
 120         function hasHeaderImage() {
 121                 var image = wp.customize( 'header_image' )();
 122                 return '' !== image && 'remove-header' !== image;
 123         }
 124
 125         // Whether a header video is available.
 126         function hasHeaderVideo() {
 127                 var externalVideo = wp.customize( 'external_header_video' )(),
 128                         video = wp.customize( 'header_video' )();
 129
 130                 return '' !== externalVideo || ( 0 !== video && '' !== video );
 131         }
 132
 133         // Toggle a body class if a custom header exists.
 134         $.each( [ 'external_header_video', 'header_image', 'header_video' ], function( index, settingId ) {
 135                 wp.customize( settingId, function( setting ) {
 136                         setting.bind(function() {
 137                                 if ( hasHeaderImage() ) {
 138                                         $( document.body ).addClass( 'has-header-image' );
 139                                 } else {
 140                                         $( document.body ).removeClass( 'has-header-image' );
 141                                 }
 142
 143                                 if ( ! hasHeaderVideo() ) {
 144                                         $( document.body ).removeClass( 'has-header-video' );
 145                                 }
 146                         } );
 147                 } );
 148         } );
 149
 150 } )( jQuery );