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/ customizer / controls / js / postMessage.js
/* global gpPostMessageFields */
/* eslint max-depth: off */
var gpPostMessage = {
/**
* The fields.
*
* @since 1.0.0
*/
fields: {},
/**
* A collection of methods for the <style> tags.
*
* @since 1.0.0
*/
styleTag: {
/**
* Add a <style> tag in <head> if it doesn't already exist.
*
* @since 1.0.0
*
* @param {string} id - The field-ID.
*
* @return {void}
*/
add( id ) {
id = id.replace( /[^\w\s]/gi, '-' );
if ( null === document.getElementById( 'gp-postmessage-' + id ) || 'undefined' === typeof document.getElementById( 'gp-postmessage-' + id ) ) {
jQuery( 'head' ).append( '<style id="gp-postmessage-' + id + '"></style>' );
}
},
/**
* Add a <style> tag in <head> if it doesn't already exist,
* by calling the this.add method, and then add styles inside it.
*
* @since 1.0.0
*
* @param {string} id - The field-ID.
* @param {string} styles - The styles to add.
*
* @return {void}
*/
addData( id, styles ) {
id = id.replace( '[', '-' ).replace( ']', '' );
gpPostMessage.styleTag.add( id );
jQuery( '#gp-postmessage-' + id ).text( styles );
},
},
/**
* Common utilities.
*
* @since 1.0.0
*/
util: {
/**
* Processes the value and applies any replacements and/or additions.
*
* @since 1.0.0
*
* @param {Object} output - The output (js_vars) argument.
* @param {mixed} value - The value.
* @param {string} controlType - The control-type.
*
* @return {string|false} - Returns false if value is excluded, otherwise a string.
*/
processValue( output, value ) {
var self = this,
settings = window.parent.wp.customize.get(),
excluded = false;
if ( 'object' === typeof value ) {
_.each( value, function( subValue, key ) {
value[ key ] = self.processValue( output, subValue );
} );
return value;
}
output = _.defaults( output, {
prefix: '',
units: '',
suffix: '',
value_pattern: '$',
pattern_replace: {},
exclude: [],
} );
if ( 1 <= output.exclude.length ) {
_.each( output.exclude, function( exclusion ) {
if ( value == exclusion ) {
excluded = true;
}
} );
}
if ( excluded ) {
return false;
}
value = output.value_pattern.replace( new RegExp( '\\$', 'g' ), value );
_.each( output.pattern_replace, function( id, placeholder ) {
if ( ! _.isUndefined( settings[ id ] ) ) {
value = value.replace( placeholder, settings[ id ] );
}
} );
return output.prefix + value + output.units + output.suffix;
},
/**
* Make sure urls are properly formatted for background-image properties.
*
* @since 1.0.0
*
* @param {string} url - The URL.
*
* @return {string} - Returns the URL.
*/
backgroundImageValue( url ) {
return ( -1 === url.indexOf( 'url(' ) ) ? 'url(' + url + ')' : url;
},
},
/**
* A collection of utilities for CSS generation.
*
* @since 1.0.0
*/
css: {
/**
* Generates the CSS from the output (js_vars) parameter.
*
* @since 1.0.0
*
* @param {Object} output - The output (js_vars) argument.
* @param {mixed} value - The value.
* @param {string} controlType - The control-type.
*
* @return {string} - Returns CSS as a string.
*/
fromOutput( output, value, controlType ) {
var styles = '',
mediaQuery = false,
processedValue;
try {
value = JSON.parse( value );
} catch ( e ) {} // eslint-disable-line no-empty
if ( output.js_callback && 'function' === typeof window[ output.js_callback ] ) {
value = window[ output.js_callback[ 0 ] ]( value, output.js_callback[ 1 ] );
}
// Apply the gpPostMessageStylesOutput filter.
styles = wp.hooks.applyFilters( 'gpPostMessageStylesOutput', styles, value, output, controlType );
if ( '' === styles ) {
switch ( controlType ) {
case 'kirki-multicolor':
case 'kirki-sortable':
styles += output.element + '{';
_.each( value, function( val, key ) {
if ( output.choice && key !== output.choice ) {
return;
}
processedValue = gpPostMessage.util.processValue( output, val );
if ( '' === processedValue ) {
if ( 'background-color' === output.property ) {
processedValue = 'unset';
} else if ( 'background-image' === output.property ) {
processedValue = 'none';
}
}
if ( false !== processedValue ) {
styles += output.property ? output.property + '-' + key + ':' + processedValue + ';' : key + ':' + processedValue + ';';
}
} );
styles += '}';
break;
default:
if ( 'kirki-image' === controlType ) {
value = ( ! _.isUndefined( value.url ) ) ? gpPostMessage.util.backgroundImageValue( value.url ) : gpPostMessage.util.backgroundImageValue( value );
}
if ( _.isObject( value ) ) {
styles += output.element + '{';
_.each( value, function( val, key ) {
var property;
if ( output.choice && key !== output.choice ) {
return;
}
processedValue = gpPostMessage.util.processValue( output, val );
property = output.property ? output.property : key;
if ( '' === processedValue ) {
if ( 'background-color' === property ) {
processedValue = 'unset';
} else if ( 'background-image' === property ) {
processedValue = 'none';
}
}
if ( false !== processedValue ) {
styles += property + ':' + processedValue + ';';
}
} );
styles += '}';
} else {
processedValue = gpPostMessage.util.processValue( output, value );
if ( '' === processedValue ) {
if ( 'background-color' === output.property ) {
processedValue = 'unset';
} else if ( 'background-image' === output.property ) {
processedValue = 'none';
}
}
if ( false !== processedValue ) {
styles += output.element + '{' + output.property + ':' + processedValue + ';}';
}
}
break;
}
}
// Get the media-query.
if ( output.media_query && 'string' === typeof output.media_query && ! _.isEmpty( output.media_query ) ) {
mediaQuery = output.media_query;
if ( -1 === mediaQuery.indexOf( '@media' ) ) {
mediaQuery = '@media ' + mediaQuery;
}
}
// If we have a media-query, add it and return.
if ( mediaQuery ) {
return mediaQuery + '{' + styles + '}';
}
// Return the styles.
return styles;
},
},
/**
* A collection of utilities to change the HTML in the document.
*
* @since 1.0.0
*/
html: {
/**
* Modifies the HTML from the output (js_vars) parameter.
*
* @since 1.0.0
*
* @param {Object} output - The output (js_vars) argument.
* @param {mixed} value - The value.
*
* @return {void}
*/
fromOutput( output, value ) {
if ( output.js_callback && 'function' === typeof window[ output.js_callback ] ) {
value = window[ output.js_callback[ 0 ] ]( value, output.js_callback[ 1 ] );
}
if ( _.isObject( value ) || _.isArray( value ) ) {
if ( ! output.choice ) {
return;
}
_.each( value, function( val, key ) {
if ( output.choice && key !== output.choice ) {
return;
}
value = val;
} );
}
value = gpPostMessage.util.processValue( output, value );
if ( output.attr ) {
jQuery( output.element ).attr( output.attr, value );
} else {
jQuery( output.element ).html( value );
}
},
},
/**
* A collection of utilities to allow toggling a CSS class.
*
* @since 1.0.0
*/
toggleClass: {
/**
* Toggles a CSS class from the output (js_vars) parameter.
*
* @since 1.0.0
*
* @param {Object} output - The output (js_vars) argument.
* @param {mixed} value - The value.
*
* @return {void}
*/
fromOutput( output, value ) {
if ( 'undefined' === typeof output.class || 'undefined' === typeof output.value ) {
return;
}
if ( value === output.value && ! jQuery( output.element ).hasClass( output.class ) ) {
jQuery( output.element ).addClass( output.class );
} else {
jQuery( output.element ).removeClass( output.class );
}
},
},
};
jQuery( document ).ready( function() {
var styles;
_.each( gpPostMessageFields, function( field ) {
wp.customize( field.settings, function( value ) {
value.bind( function( newVal ) {
styles = '';
_.each( field.js_vars, function( output ) {
output.function = ( ! output.function || 'undefined' === typeof gpPostMessage[ output.function ] ) ? 'css' : output.function;
field.type = ( field.choices && field.choices.parent_type ) ? field.choices.parent_type : field.type;
if ( 'css' === output.function ) {
styles += gpPostMessage.css.fromOutput( output, newVal, field.type );
} else {
gpPostMessage[ output.function ].fromOutput( output, newVal, field.type );
}
} );
gpPostMessage.styleTag.addData( field.settings, styles );
} );
} );
} );
} );