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/**
* Handle the site icon setting in options-general.php.
*
* @since 6.5.0
* @output wp-admin/js/site-icon.js
*/
/* global jQuery, wp */
( function ( $ ) {
var $chooseButton = $( '#choose-from-library-button' ),
$iconPreview = $( '#site-icon-preview' ),
$browserIconPreview = $( '#browser-icon-preview' ),
$appIconPreview = $( '#app-icon-preview' ),
$hiddenDataField = $( '#site_icon_hidden_field' ),
$removeButton = $( '#js-remove-site-icon' ),
$adminBarSiteName = $( '#wp-admin-bar-site-name' ),
$adminBarSiteNameLink = $adminBarSiteName.children( 'a' ).first(),
frame;
/**
* Calculate image selection options based on the attachment dimensions.
*
* @since 6.5.0
*
* @param {Object} attachment The attachment object representing the image.
* @return {Object} The image selection options.
*/
function calculateImageSelectOptions( attachment ) {
var realWidth = attachment.get( 'width' ),
realHeight = attachment.get( 'height' ),
xInit = 512,
yInit = 512,
ratio = xInit / yInit,
xImg = xInit,
yImg = yInit,
x1,
y1,
imgSelectOptions;
if ( realWidth / realHeight > ratio ) {
yInit = realHeight;
xInit = yInit * ratio;
} else {
xInit = realWidth;
yInit = xInit / ratio;
}
x1 = ( realWidth - xInit ) / 2;
y1 = ( realHeight - yInit ) / 2;
imgSelectOptions = {
aspectRatio: xInit + ':' + yInit,
handles: true,
keys: true,
instance: true,
persistent: true,
imageWidth: realWidth,
imageHeight: realHeight,
minWidth: xImg > xInit ? xInit : xImg,
minHeight: yImg > yInit ? yInit : yImg,
x1: x1,
y1: y1,
x2: xInit + x1,
y2: yInit + y1,
};
return imgSelectOptions;
}
/**
* Initializes the media frame for selecting or cropping an image.
*
* @since 6.5.0
*/
$chooseButton.on( 'click', function () {
var $el = $( this );
// Create the media frame.
frame = wp.media( {
button: {
// Set the text of the button.
text: $el.data( 'update' ),
// Don't close, we might need to crop.
close: false,
},
states: [
new wp.media.controller.Library( {
title: $el.data( 'choose-text' ),
library: wp.media.query( { type: 'image' } ),
date: false,
suggestedWidth: $el.data( 'size' ),
suggestedHeight: $el.data( 'size' ),
} ),
new wp.media.controller.SiteIconCropper( {
control: {
params: {
width: $el.data( 'size' ),
height: $el.data( 'size' ),
},
},
imgSelectOptions: calculateImageSelectOptions,
} ),
],
} );
frame.on( 'cropped', function ( attachment ) {
$hiddenDataField.val( attachment.id );
switchToUpdate( attachment );
frame.close();
// Start over with a frame that is so fresh and so clean clean.
frame = null;
} );
// When an image is selected, run a callback.
frame.on( 'select', function () {
// Grab the selected attachment.
var attachment = frame.state().get( 'selection' ).first();
if (
attachment.attributes.height === $el.data( 'size' ) &&
$el.data( 'size' ) === attachment.attributes.width
) {
switchToUpdate( attachment.attributes );
frame.close();
// Set the value of the hidden input to the attachment id.
$hiddenDataField.val( attachment.id );
} else {
frame.setState( 'cropper' );
}
} );
frame.open();
} );
/**
* Update the UI when a site icon is selected.
*
* @since 6.5.0
*
* @param {array} attributes The attributes for the attachment.
*/
function switchToUpdate( attributes ) {
var i18nAppAlternativeString, i18nBrowserAlternativeString;
if ( attributes.alt ) {
i18nAppAlternativeString = wp.i18n.sprintf(
/* translators: %s: The selected image alt text. */
wp.i18n.__( 'App icon preview: Current image: %s' ),
attributes.alt
);
i18nBrowserAlternativeString = wp.i18n.sprintf(
/* translators: %s: The selected image alt text. */
wp.i18n.__( 'Browser icon preview: Current image: %s' ),
attributes.alt
);
} else {
i18nAppAlternativeString = wp.i18n.sprintf(
/* translators: %s: The selected image filename. */
wp.i18n.__(
'App icon preview: The current image has no alternative text. The file name is: %s'
),
attributes.filename
);
i18nBrowserAlternativeString = wp.i18n.sprintf(
/* translators: %s: The selected image filename. */
wp.i18n.__(
'Browser icon preview: The current image has no alternative text. The file name is: %s'
),
attributes.filename
);
}
// Set site-icon-img src and alternative text to app icon preview.
$appIconPreview.attr( {
src: attributes.url,
alt: i18nAppAlternativeString,
} );
// Set site-icon-img src and alternative text to browser preview.
$browserIconPreview.attr( {
src: attributes.url,
alt: i18nBrowserAlternativeString,
} );
// Remove hidden class from icon preview div and remove button.
$iconPreview.removeClass( 'hidden' );
$removeButton.removeClass( 'hidden' );
// Set the global CSS variable for --site-icon-url to the selected image URL.
document.documentElement.style.setProperty(
'--site-icon-url',
'url(' + attributes.url + ')'
);
// Replace the site icon in the admin bar.
$adminBarSiteNameLink.children( 'img.site-icon' ).remove();
$( '<img />' )
.attr( {
class: 'site-icon',
src: attributes.url,
alt: '',
width: 20,
height: 20,
} )
.prependTo( $adminBarSiteNameLink );
$adminBarSiteName.addClass( 'has-site-icon' );
// If the choose button is not in the update state, swap the classes.
if ( $chooseButton.attr( 'data-state' ) !== '1' ) {
$chooseButton.attr( {
class: $chooseButton.attr( 'data-alt-classes' ),
'data-alt-classes': $chooseButton.attr( 'class' ),
'data-state': '1',
} );
}
// Swap the text of the choose button.
$chooseButton.text( $chooseButton.attr( 'data-update-text' ) );
}
/**
* Handles the click event of the remove button.
*
* @since 6.5.0
*/
$removeButton.on( 'click', function () {
$hiddenDataField.val( 'false' );
$( this ).toggleClass( 'hidden' );
$iconPreview.toggleClass( 'hidden' );
$browserIconPreview.attr( {
src: '',
alt: '',
} );
$appIconPreview.attr( {
src: '',
alt: '',
} );
// Remove the site icon from the admin bar.
$adminBarSiteNameLink.children( 'img.site-icon' ).remove();
$adminBarSiteName.removeClass( 'has-site-icon' );
/**
* Resets state to the button, for correct visual style and state.
* Updates the text of the button.
* Sets focus state to the button.
*/
$chooseButton
.attr( {
class: $chooseButton.attr( 'data-alt-classes' ),
'data-alt-classes': $chooseButton.attr( 'class' ),
'data-state': '',
} )
.text( $chooseButton.attr( 'data-choose-text' ) )
.trigger( 'focus' );
} );
} )( jQuery );