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/**

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* Handle the site icon setting in options-general.php.

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* @since 6.5.0

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* @output wp-admin/js/site-icon.js

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/* global jQuery, wp */

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( function ( $ ) {

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var $chooseButton = $( '#choose-from-library-button' ),

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$iconPreview = $( '#site-icon-preview' ),

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$browserIconPreview = $( '#browser-icon-preview' ),

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$appIconPreview = $( '#app-icon-preview' ),

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$hiddenDataField = $( '#site_icon_hidden_field' ),

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$removeButton = $( '#js-remove-site-icon' ),

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frame;

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/**

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* Calculate image selection options based on the attachment dimensions.

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* @since 6.5.0

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* @param {Object} attachment The attachment object representing the image.

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* @return {Object} The image selection options.

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function calculateImageSelectOptions( attachment ) {

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var realWidth = attachment.get( 'width' ),

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realHeight = attachment.get( 'height' ),

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xInit = 512,

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yInit = 512,

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ratio = xInit / yInit,

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xImg = xInit,

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yImg = yInit,

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x1,

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y1,

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imgSelectOptions;

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if ( realWidth / realHeight > ratio ) {

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yInit = realHeight;

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xInit = yInit * ratio;

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} else {

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xInit = realWidth;

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yInit = xInit / ratio;

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}

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x1 = ( realWidth - xInit ) / 2;

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y1 = ( realHeight - yInit ) / 2;

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imgSelectOptions = {

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aspectRatio: xInit + ':' + yInit,

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handles: true,

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keys: true,

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instance: true,

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persistent: true,

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imageWidth: realWidth,

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imageHeight: realHeight,

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minWidth: xImg > xInit ? xInit : xImg,

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minHeight: yImg > yInit ? yInit : yImg,

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x1: x1,

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y1: y1,

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x2: xInit + x1,

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y2: yInit + y1,

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};

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return imgSelectOptions;

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}

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/**

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* Initializes the media frame for selecting or cropping an image.

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* @since 6.5.0

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$chooseButton.on( 'click', function () {

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var $el = $( this );

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// Create the media frame.

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frame = wp.media( {

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button: {

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// Set the text of the button.

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text: $el.data( 'update' ),

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// Don't close, we might need to crop.

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close: false,

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states: [

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new wp.media.controller.Library( {

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title: $el.data( 'choose-text' ),

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library: wp.media.query( { type: 'image' } ),

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date: false,

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suggestedWidth: $el.data( 'size' ),

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suggestedHeight: $el.data( 'size' ),

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} ),

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new wp.media.controller.SiteIconCropper( {

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control: {

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params: {

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width: $el.data( 'size' ),

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height: $el.data( 'size' ),

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imgSelectOptions: calculateImageSelectOptions,

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} ),

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} );

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frame.on( 'cropped', function ( attachment ) {

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$hiddenDataField.val( attachment.id );

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switchToUpdate( attachment );

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frame.close();

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// Start over with a frame that is so fresh and so clean clean.

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frame = null;

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} );

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// When an image is selected, run a callback.

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frame.on( 'select', function () {

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// Grab the selected attachment.

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var attachment = frame.state().get( 'selection' ).first();

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if (

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attachment.attributes.height === $el.data( 'size' ) &&

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$el.data( 'size' ) === attachment.attributes.width

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) {

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switchToUpdate( attachment.attributes );

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frame.close();

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// Set the value of the hidden input to the attachment id.

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$hiddenDataField.val( attachment.id );

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} else {

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frame.setState( 'cropper' );

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}

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} );

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frame.open();

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} );

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/**

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* Update the UI when a site icon is selected.

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* @since 6.5.0

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* @param {array} attributes The attributes for the attachment.

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function switchToUpdate( attributes ) {

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var i18nAppAlternativeString, i18nBrowserAlternativeString;

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if ( attributes.alt ) {

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i18nAppAlternativeString = wp.i18n.sprintf(

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/* translators: %s: The selected image alt text. */

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wp.i18n.__( 'App icon preview: Current image: %s' ),

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attributes.alt

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);

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i18nBrowserAlternativeString = wp.i18n.sprintf(

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/* translators: %s: The selected image alt text. */

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wp.i18n.__( 'Browser icon preview: Current image: %s' ),

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attributes.alt

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);

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} else {

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i18nAppAlternativeString = wp.i18n.sprintf(

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/* translators: %s: The selected image filename. */

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wp.i18n.__(

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'App icon preview: The current image has no alternative text. The file name is: %s'

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attributes.filename

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);

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i18nBrowserAlternativeString = wp.i18n.sprintf(

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/* translators: %s: The selected image filename. */

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wp.i18n.__(

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'Browser icon preview: The current image has no alternative text. The file name is: %s'

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attributes.filename

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);

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}

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// Set site-icon-img src and alternative text to app icon preview.

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$appIconPreview.attr( {

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src: attributes.url,

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alt: i18nAppAlternativeString,

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} );

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// Set site-icon-img src and alternative text to browser preview.

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$browserIconPreview.attr( {

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src: attributes.url,

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alt: i18nBrowserAlternativeString,

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} );

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// Remove hidden class from icon preview div and remove button.

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$iconPreview.removeClass( 'hidden' );

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$removeButton.removeClass( 'hidden' );

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// If the choose button is not in the update state, swap the classes.

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if ( $chooseButton.attr( 'data-state' ) !== '1' ) {

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$chooseButton.attr( {

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class: $chooseButton.attr( 'data-alt-classes' ),

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'data-alt-classes': $chooseButton.attr( 'class' ),

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'data-state': '1',

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} );

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}

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// Swap the text of the choose button.

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$chooseButton.text( $chooseButton.attr( 'data-update-text' ) );

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}

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/**

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* Handles the click event of the remove button.

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* @since 6.5.0

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$removeButton.on( 'click', function () {

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$hiddenDataField.val( 'false' );

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$( this ).toggleClass( 'hidden' );

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$iconPreview.toggleClass( 'hidden' );

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$browserIconPreview.attr( {

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src: '',

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alt: '',

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} );

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$appIconPreview.attr( {

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src: '',

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alt: '',

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} );

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/**

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* Resets state to the button, for correct visual style and state.

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* Updates the text of the button.

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* Sets focus state to the button.

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$chooseButton

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.attr( {

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class: $chooseButton.attr( 'data-alt-classes' ),

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'data-alt-classes': $chooseButton.attr( 'class' ),

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'data-state': '',

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} )

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.text( $chooseButton.attr( 'data-choose-text' ) )

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.trigger( 'focus' );

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} );

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} )( jQuery );

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