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/* global Choices, wpforms_admin_email_settings */ /** * Script for manipulating DOM events in the "Email" settings page. * This script will be accessible in the "WPForms" → "Settings" → "Email" page. * * @since 1.8.5 */ const WPFormsEmailSettings = window.WPFormsEmailSettings || ( function( document, window, $, l10n ) { /** * Elements holder. * * @since 1.8.5 * * @type {Object} */ const el = {}; /** * Runtime variables. * * @since 1.8.6 * * @type {Object} */ const vars = { cache: { appearance: { light: '#email-appearance-light', }, colors: { light: { background: [ '#wpforms-setting-email-background-color', '#wpforms-setting-email-color-scheme-email_background_color', ], text: '#wpforms-setting-email-color-scheme-email_text_color', }, dark: { background: [ '#wpforms-setting-email-background-color-dark', '#wpforms-setting-email-color-scheme-dark-email_background_color_dark', ], text: '#wpforms-setting-email-color-scheme-dark-email_text_color_dark', }, }, }, /** * Generic CSS class names for applying visual changes. * * @since 1.8.6 */ classNames: { hide: 'wpforms-hide', appearance: 'email-appearance-mode-toggle', legacyTemplate: 'legacy-template', hideForPlainText: 'hide-for-template-none', headerImage: 'wpforms-email-header-image', colorScheme: 'email-color-scheme', typography: 'email-typography', noticeWarning: 'notice-warning', noticeLegacy: 'wpforms-email-legacy-notice', settingsRow: 'wpforms-setting-row', settingField: 'wpforms-setting-field', }, }; /** * Public functions and properties. * * @since 1.8.5 */ const app = { /** * Start the engine. * * @since 1.8.5 */ init() { $( app.ready ); }, /** * Document ready. * * @since 1.8.5 */ ready() { app.setup(); app.bindEvents(); app.relocateImageSize(); app.handleOnContrastChange(); app.handleOnChangeBackgroundColor(); }, /** * Setup. Prepare some variables. * * @since 1.8.5 */ setup() { // Cache DOM elements. el.$wrapper = $( '.wpforms-admin-settings-email' ); el.$appearance = $( `.${ vars.classNames.appearance }` ); el.$colorScheme = $( `.${ vars.classNames.colorScheme }` ); el.$typography = $( `.${ vars.classNames.typography }` ); }, /** * Bind events. * * @since 1.8.5 */ bindEvents() { el.$wrapper .on( 'change', '.wpforms-email-template input[type="radio"]', app.handleOnUpdateTemplate ) .on( 'change', '.wpforms-email-header-image input', app.handleOnChangeHeaderImage ) .on( 'click', '.wpforms-setting-remove-image', app.handleOnRemoveHeaderImage ) .on( 'change', '.has-preview-changes :input', app.handleOnPreviewChanges ) .on( 'change', '.email-appearance-mode-toggle input', app.handleOnAppearanceModeToggle ) // Selectors for the following events are specified by matching the ID attribute by design to ensure both appearance modes are covered. .on( 'change', '[id*="email-background-color"], [id*="email_background_color"]', app.handleOnChangeBackgroundColor ) .on( 'change', '[id*="email_body_color"], [id*="email_text_color"]', app.handleOnContrastChange ); }, /** * Callback for template change. * * @since 1.8.5 * * @param {Object} event An event which takes place in the DOM. */ handleOnUpdateTemplate( event ) { // Get the selected value from the event. const selected = $( event.currentTarget ).val(); // Find relevant elements in the wrapper. const $hideForNone = el.$wrapper.find( `.${ vars.classNames.hideForPlainText }` ); const $imageSizeChoices = el.$wrapper.find( `.${ vars.classNames.headerImage } .choices` ); const $backgroundControl = el.$wrapper.find( '.email-background-color' ); const $legacyNotice = el.$wrapper.find( `.${ vars.classNames.noticeLegacy }` ); const $educationModal = el.$wrapper.find( '.education-modal' ); // Check if it's a Pro template. const isPro = $educationModal.length === 0; // Check if the selected value is 'none' or 'default'. const isNone = selected === 'none'; const isDefault = selected === 'default'; // Toggle image size choices based on the selected value. $imageSizeChoices.each( ( i, elm ) => { const $this = $( elm ); const hasImage = $this.closest( `.${ vars.classNames.settingField }` ).find( 'img' ).length; $this.toggle( ! isDefault && !! hasImage ); } ); // Toggle visibility for elements based on conditions. $hideForNone.toggle( ! isNone ); $legacyNotice.toggle( isDefault ); $backgroundControl.toggle( ( isDefault || ! isPro ) && ! isNone ); // Toggle the light mode radio button based on the selected value. if ( isDefault ) { el.$appearance.find( vars.cache.appearance.light ).trigger( 'click' ); } // Cache the class name for the legacy template. const { legacyTemplate: legacyTemplateClassName } = vars.classNames; // Toggle classes based on the selected value. el.$appearance.toggleClass( legacyTemplateClassName, isDefault ); el.$colorScheme.toggleClass( legacyTemplateClassName, isDefault ); el.$typography.toggleClass( legacyTemplateClassName, isDefault ); // Update the background color. app.handleOnChangeBackgroundColor(); }, /** * Callback for "Upload Image" button click. * * @since 1.8.6 */ handleOnChangeHeaderImage() { // Update the background color. app.handleOnChangeBackgroundColor(); // In case the current template is "Legacy" or image tag doesn't exist, return early. if ( app.isLegacyTemplate() || ! $( this ).prev( 'img' ).length ) { return; } // Show the image size dropdown menu. $( this ).parent().find( '.choices' ).show(); }, /** * Callback for "Remove Image" button click. * * @since 1.8.5 */ handleOnRemoveHeaderImage() { $( this ).closest( `.${ vars.classNames.settingsRow }` ).removeClass( 'has-external-image-url' ); }, /** * Callback for the image size select input change. * * @since 1.8.5 */ handleOnUpdateImageSize() { // Get the wrapper tag. const $wrapper = $( this ).closest( `.${ vars.classNames.settingsRow }` ); // Get the selected value. const value = $( this ).val(); // Remove the previous image size class. $wrapper.removeClass( ( index, className ) => ( className.match( /has-image-size-\w+/g ) || [] ).join( ' ' ) ); // Add the new image size class. $wrapper.addClass( `has-image-size-${ value }` ); }, /** * Callback for the background color picker input change. * * @since 1.8.6 */ handleOnChangeBackgroundColor() { const [ lightBackgroundColor, darkBackgroundColor ] = app.getBackgroundColors(); // Sync the background color value. app.syncBackgroundColors( lightBackgroundColor, darkBackgroundColor ); }, /** * Callback for the body background and text color picker input changes. * * @since 1.8.6 */ handleOnContrastChange() { // Bail if the color contrast checker is not available. if ( ! window.WPFormsColorContrastChecker ) { return; } // Define class names for elements. const { noticeWarning: noticeClassName, settingsRow: settingsRowClassName } = vars.classNames; // Define color arrays for different elements. const textColors = [ vars.cache.colors.light.text, vars.cache.colors.dark.text, ]; textColors.forEach( ( textColor ) => { // Select color input elements. const $textColor = $( textColor ); const $bodyColor = $textColor.parent().prev().prev().find( 'input' ); // Create a color contrast checker instance. const contrastChecker = new window.WPFormsColorContrastChecker( { textColor: $textColor.val(), bgColor: $bodyColor.val(), message: { contrastPass: '', contrastFail: l10n?.contrast_fail || '', }, } ); // Check the color contrast. const contrastMessage = contrastChecker.checkContrast(); // Bail if there's no contrast message and the notice is not present. if ( ! contrastMessage ) { const $settingsRow = $textColor.closest( `.${ settingsRowClassName }` ); $settingsRow.find( `.${ noticeClassName }` ).remove(); return; } // Bail if the notice is already present. const $settingsRow = $textColor.closest( `.${ settingsRowClassName }` ); if ( $settingsRow.find( `.${ noticeClassName }` ).length ) { return; } // Append contrast notice. $settingsRow.append( `<div class="${ noticeClassName }"><p>${ window.wp.escapeHtml.escapeHTML( contrastMessage ) }</p></div>` ); } ); }, /** * Callback for input changes. * This method is used to update the preview URL. * * @since 1.8.6 */ handleOnPreviewChanges() { // Bail if the XOR encryption is not available. if ( ! window.WPFormsXOR ) { return; } // Get the current input. const $this = $( this ); // Extract the 'name' attribute. const name = $this.attr( 'name' ); // Extract the ID from the 'name' attribute using a regex. // Explanation: // - /\[([^[\]]+)]/i: Match square brackets and capture the content inside. // - ( || [] )[1]: Use the captured content, or an empty array if not found. // - || name: If still not found, fallback to the original 'name'. // - replace(/-/g, '_'): Replace dashes with underscores in the ID. const id = ( ( name.match( /\[([^[\]]+)]/i ) || [] )[ 1 ] || name ).replace( /-/g, '_' ); // Get the current input value. const value = $this.val(); // Destructure utility functions from the wp.url object. const { isURL, addQueryArgs, getQueryArg } = wp.url; // Query argument name. const queryArgName = 'wpforms_email_style_overrides'; // Create an XOR instance. const xorInstance = new window.WPFormsXOR(); // Filter and update the href attribute for elements with class 'wpforms-btn-preview'. $( '.wpforms-btn-preview' ) .filter( ( index, elm ) => isURL( $( elm ).attr( 'href' ) ) ) .attr( 'href', ( index, oldHref ) => { const existingOverrides = xorInstance.decrypt( getQueryArg( oldHref, queryArgName ) ); const updatedOverrides = { ...existingOverrides, [ id ]: value }; const updatedQueryString = xorInstance.encrypt( updatedOverrides ); return addQueryArgs( oldHref, { [ queryArgName ]: updatedQueryString } ); } ); }, /** * Callback for the appearance mode toggle. * * @since 1.8.6 */ handleOnAppearanceModeToggle() { // Reference to the clicked radio button. const $this = $( this ); // Define class names for elements. const { hide: hideClassName, settingField: settingFieldClassName } = vars.classNames; // Get the value of the selected radio button. const selected = $this.val(); // Find the closest setting field container. const $settingField = $this.closest( `.${ settingFieldClassName }` ); // Find the unselected radio button within the same setting field. const $unselectedInput = $settingField.find( 'input:not(:checked)' ); // Get the value of the unselected radio button. const unselected = $unselectedInput.val(); $( `.email-${ selected }-mode` ).removeClass( hideClassName ); $( `.email-${ unselected }-mode` ).addClass( hideClassName ); }, /** * Relocate image size select input for styling purposes. * * @since 1.8.5 */ relocateImageSize() { const $imgSize = $( '.wpforms-email-header-image-size' ); // Bail if there is no "Remove Image" button. if ( $imgSize.length === 0 ) { return; } $imgSize.each( ( index, elm ) => { const $this = $( elm ); const $select = $this.find( 'select' ); // Bail if there is no select element. if ( $select.length === 0 ) { return; } // Get the header image element. const $headerImage = $this.prev(); // Move the select element before the "Remove Image" button. $headerImage.find( '.wpforms-setting-remove-image' ).before( $select.get( 0 ).outerHTML ); // Remove the original select element. $select.remove(); try { // Cache the new select input. const $newSelect = $headerImage.find( 'select' ); // Add the image size class. Note that the default value is 140. $headerImage.addClass( `has-image-size-${ $newSelect.val() || 'medium' }` ); // Bind the change event, and update the image size class. $newSelect.on( 'change', app.handleOnUpdateImageSize ); // Initialize Choices. new Choices( $newSelect.get( 0 ), { searchEnabled: false, shouldSort: false, itemSelectText: '', } ); // Check if it's a legacy template and adjust settings accordingly. if ( app.isLegacyTemplate() ) { el.$wrapper.find( `.${ vars.classNames.noticeLegacy }` ).show(); $headerImage.find( '.choices' ).hide(); } } catch ( e ) { // Handle any potential errors, but continue execution. // eslint-disable-next-line no-console console.error( 'Error during relocation:', e ); } } ); }, /** * Determine whether the currently selected template is the "Legacy" template. * Legacy template is the one that its value is 'default'. * * @since 1.8.6 * * @return {boolean} True if the current template is legacy. */ isLegacyTemplate() { return el.$wrapper.find( '.wpforms-setting-row-email_template input:checked' ).val() === 'default'; }, /** * Get background colors for light and dark modes. * * This function retrieves the visible background color or falls back to the default one * for both light and dark modes. * * @since 1.8.6 * * @return {Array} An array containing background colors for light and dark modes. */ getBackgroundColors() { // Get the visible background color or the default one. const getVisibleBackgroundColor = ( selector, fallbackSelector ) => { const visibleColor = el.$wrapper.find( `${ selector }:visible` ).val(); return visibleColor || el.$wrapper.find( fallbackSelector ).val(); }; // Return an array of background colors for light and dark modes. return [ getVisibleBackgroundColor( ...vars.cache.colors.light.background ), getVisibleBackgroundColor( ...vars.cache.colors.dark.background ), ]; }, /** * Sync the background color value. * * @since 1.8.6 * * @param {string} lightBackgroundColor The light background color in hex format. * @param {string} darkBackgroundColor The dark background color in hex format. */ syncBackgroundColors( lightBackgroundColor, darkBackgroundColor ) { // Bail if there is no light or dark background color. if ( ! lightBackgroundColor || ! darkBackgroundColor ) { return; } // Define color arrays for different elements. const backgrounds = [ vars.cache.colors.light.background, vars.cache.colors.dark.background, ]; // Reflect the change in the color picker. for ( let i = 0; i < backgrounds.length; i++ ) { // Determine the color based on the loop index. const color = i === 0 ? lightBackgroundColor : darkBackgroundColor; // Select the corresponding image element based on the loop index. const $img = i === 0 ? $( '#wpforms-setting-row-email-header-image' ) : $( '#wpforms-setting-row-email-header-image-dark' ); // Iterate over elements in the current color array. backgrounds[ i ].forEach( ( selector ) => { // Find the element using the selector. const $background = el.$wrapper.find( selector ); // Set the color value for the element. $background.val( color ); // Update the background color in the color picker swatch. $background.next().find( '.minicolors-swatch-color' ).css( 'backgroundColor', color ); } ); // Update the background color for the image element. $img.find( 'img' ).css( 'backgroundColor', color ); } }, }; // Provide access to public functions/properties. return app; }( document, window, jQuery, wpforms_admin_email_settings ) ); // Initialize. WPFormsEmailSettings.init();
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