Emoji: Convert the emoji loader from an inline blocking script to a (deferred) script module.
This modernizes the emoji loader script by converting it from a blocking inline script with an IIFE to a script module. Using a script module improves the performance of the FCP and LCP metrics since it does not block the HTML parser. Since script modules are deferred and run immediately before `DOMContentLoaded`, the logic to wait until that event is also now removed. Additionally, since the script is loaded as a module, it has been modernized to use `const`, `let`, and arrow functions. The `sourceURL` comment is also added. See #63887. The emoji settings are now passed via a separate `script` tag with a `type` of `application/json`, following the new "pull" paradigm introduced for exporting data from PHP to script modules. See #58873. The JSON data is also now encoded in a more resilient way according to #63851. When the `wp-emoji-loader.js` script module executes, it continues to populate the `window._wpemojiSettings` global for backwards-compatibility for any extensions that may be using it. A new `uglify:emoji-loader` grunt task is added which ensures `wp-includes/js/wp-emoji-loader.js` is processed as a module and that top-level symbols are minified. Follow-up to [60681]. Props westonruter, jonsurrell, adamsilverstein, peterwilsoncc. See #63851, #63887. Fixes #63842. Built from https://develop.svn.wordpress.org/trunk@60899 git-svn-id: http://core.svn.wordpress.org/trunk@60235 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Weston Ruter
@@ -5978,8 +5978,20 @@ function _print_emoji_detection_script() {
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}
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wp_print_inline_script_tag(
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sprintf( 'window._wpemojiSettings = %s;', wp_json_encode( $settings ) ) . "\n" .
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file_get_contents( ABSPATH . WPINC . '/js/wp-emoji-loader' . wp_scripts_get_suffix() . '.js' )
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wp_json_encode( $settings, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ),
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array(
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'id' => 'wp-emoji-settings',
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'type' => 'application/json',
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)
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);
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$emoji_loader_script_path = '/js/wp-emoji-loader' . wp_scripts_get_suffix() . '.js';
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wp_print_inline_script_tag(
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rtrim( file_get_contents( ABSPATH . WPINC . $emoji_loader_script_path ) ) . "\n" .
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'//# sourceURL=' . includes_url( $emoji_loader_script_path ),
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array(
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'type' => 'module',
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)
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);
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}
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@@ -2,6 +2,8 @@
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* @output wp-includes/js/wp-emoji-loader.js
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*/
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// Note: This is loaded as a script module, so there is no need for an IIFE to prevent pollution of the global scope.
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/**
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* Emoji Settings as exported in PHP via _print_emoji_detection_script().
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* @typedef WPEmojiSettings
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@@ -14,6 +16,13 @@
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* @property {?Function} readyCallback
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*/
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const settings = /** @type {WPEmojiSettings} */ (
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JSON.parse( document.getElementById( 'wp-emoji-settings' ).textContent )
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);
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// For compatibility with other scripts that read from this global.
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window._wpemojiSettings = settings;
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/**
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* Support tests.
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* @typedef SupportTests
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@@ -22,438 +31,415 @@
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* @property {?boolean} emoji
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*/
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const sessionStorageKey = 'wpEmojiSettingsSupports';
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const tests = [ 'flag', 'emoji' ];
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/**
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* IIFE to detect emoji support and load Twemoji if needed.
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* Checks whether the browser supports offloading to a Worker.
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*
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* @param {Window} window
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* @param {Document} document
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* @param {WPEmojiSettings} settings
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* @since 6.3.0
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*
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* @private
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*
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* @returns {boolean}
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*/
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( function wpEmojiLoader( window, document, settings ) {
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if ( typeof Promise === 'undefined' ) {
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function supportsWorkerOffloading() {
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return (
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typeof Worker !== 'undefined' &&
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typeof OffscreenCanvas !== 'undefined' &&
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typeof URL !== 'undefined' &&
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URL.createObjectURL &&
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typeof Blob !== 'undefined'
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);
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}
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/**
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* @typedef SessionSupportTests
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* @type {object}
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* @property {number} timestamp
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* @property {SupportTests} supportTests
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*/
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/**
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* Get support tests from session.
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*
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* @since 6.3.0
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*
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* @private
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*
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* @returns {?SupportTests} Support tests, or null if not set or older than 1 week.
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*/
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function getSessionSupportTests() {
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try {
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/** @type {SessionSupportTests} */
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const item = JSON.parse(
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sessionStorage.getItem( sessionStorageKey )
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);
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if (
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typeof item === 'object' &&
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typeof item.timestamp === 'number' &&
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new Date().valueOf() < item.timestamp + 604800 && // Note: Number is a week in seconds.
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typeof item.supportTests === 'object'
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) {
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return item.supportTests;
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}
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} catch ( e ) {}
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return null;
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}
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/**
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* Persist the supports in session storage.
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*
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* @since 6.3.0
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*
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* @private
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*
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* @param {SupportTests} supportTests Support tests.
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*/
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function setSessionSupportTests( supportTests ) {
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try {
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/** @type {SessionSupportTests} */
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const item = {
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supportTests: supportTests,
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timestamp: new Date().valueOf()
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};
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sessionStorage.setItem(
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sessionStorageKey,
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JSON.stringify( item )
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);
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} catch ( e ) {}
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}
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/**
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* Checks if two sets of Emoji characters render the same visually.
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*
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* This is used to determine if the browser is rendering an emoji with multiple data points
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* correctly. set1 is the emoji in the correct form, using a zero-width joiner. set2 is the emoji
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* in the incorrect form, using a zero-width space. If the two sets render the same, then the browser
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* does not support the emoji correctly.
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*
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* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
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* scope. Everything must be passed by parameters.
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*
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* @since 4.9.0
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*
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* @private
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*
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* @param {CanvasRenderingContext2D} context 2D Context.
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* @param {string} set1 Set of Emoji to test.
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* @param {string} set2 Set of Emoji to test.
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*
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* @return {boolean} True if the two sets render the same.
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*/
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function emojiSetsRenderIdentically( context, set1, set2 ) {
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// Cleanup from previous test.
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context.clearRect( 0, 0, context.canvas.width, context.canvas.height );
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context.fillText( set1, 0, 0 );
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const rendered1 = new Uint32Array(
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context.getImageData(
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0,
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0,
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context.canvas.width,
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context.canvas.height
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).data
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);
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// Cleanup from previous test.
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context.clearRect( 0, 0, context.canvas.width, context.canvas.height );
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context.fillText( set2, 0, 0 );
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const rendered2 = new Uint32Array(
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context.getImageData(
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0,
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0,
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context.canvas.width,
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context.canvas.height
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).data
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);
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return rendered1.every( ( rendered2Data, index ) => {
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return rendered2Data === rendered2[ index ];
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} );
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}
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/**
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* Checks if the center point of a single emoji is empty.
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*
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* This is used to determine if the browser is rendering an emoji with a single data point
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* correctly. The center point of an incorrectly rendered emoji will be empty. A correctly
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* rendered emoji will have a non-zero value at the center point.
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*
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* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
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* scope. Everything must be passed by parameters.
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*
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* @since 6.8.2
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*
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* @private
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*
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* @param {CanvasRenderingContext2D} context 2D Context.
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* @param {string} emoji Emoji to test.
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*
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* @return {boolean} True if the center point is empty.
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*/
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function emojiRendersEmptyCenterPoint( context, emoji ) {
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// Cleanup from previous test.
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context.clearRect( 0, 0, context.canvas.width, context.canvas.height );
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context.fillText( emoji, 0, 0 );
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// Test if the center point (16, 16) is empty (0,0,0,0).
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const centerPoint = context.getImageData(16, 16, 1, 1);
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for ( let i = 0; i < centerPoint.data.length; i++ ) {
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if ( centerPoint.data[ i ] !== 0 ) {
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// Stop checking the moment it's known not to be empty.
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return false;
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}
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}
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return true;
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}
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/**
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* Determines if the browser properly renders Emoji that Twemoji can supplement.
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*
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* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
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* scope. Everything must be passed by parameters.
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*
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* @since 4.2.0
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*
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* @private
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*
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* @param {CanvasRenderingContext2D} context 2D Context.
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* @param {string} type Whether to test for support of "flag" or "emoji".
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* @param {Function} emojiSetsRenderIdentically Reference to emojiSetsRenderIdentically function, needed due to minification.
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* @param {Function} emojiRendersEmptyCenterPoint Reference to emojiRendersEmptyCenterPoint function, needed due to minification.
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*
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* @return {boolean} True if the browser can render emoji, false if it cannot.
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*/
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function browserSupportsEmoji( context, type, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint ) {
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let isIdentical;
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switch ( type ) {
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case 'flag':
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/*
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* Test for Transgender flag compatibility. Added in Unicode 13.
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*
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* To test for support, we try to render it, and compare the rendering to how it would look if
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* the browser doesn't render it correctly (white flag emoji + transgender symbol).
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*/
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isIdentical = emojiSetsRenderIdentically(
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context,
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'\uD83C\uDFF3\uFE0F\u200D\u26A7\uFE0F', // as a zero-width joiner sequence
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'\uD83C\uDFF3\uFE0F\u200B\u26A7\uFE0F' // separated by a zero-width space
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);
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if ( isIdentical ) {
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return false;
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}
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/*
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* Test for Sark flag compatibility. This is the least supported of the letter locale flags,
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* so gives us an easy test for full support.
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*
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* To test for support, we try to render it, and compare the rendering to how it would look if
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* the browser doesn't render it correctly ([C] + [Q]).
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*/
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isIdentical = emojiSetsRenderIdentically(
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context,
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'\uD83C\uDDE8\uD83C\uDDF6', // as the sequence of two code points
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'\uD83C\uDDE8\u200B\uD83C\uDDF6' // as the two code points separated by a zero-width space
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);
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if ( isIdentical ) {
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return false;
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}
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/*
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* Test for English flag compatibility. England is a country in the United Kingdom, it
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* does not have a two letter locale code but rather a five letter sub-division code.
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*
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* To test for support, we try to render it, and compare the rendering to how it would look if
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* the browser doesn't render it correctly (black flag emoji + [G] + [B] + [E] + [N] + [G]).
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*/
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isIdentical = emojiSetsRenderIdentically(
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context,
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// as the flag sequence
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'\uD83C\uDFF4\uDB40\uDC67\uDB40\uDC62\uDB40\uDC65\uDB40\uDC6E\uDB40\uDC67\uDB40\uDC7F',
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// with each code point separated by a zero-width space
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'\uD83C\uDFF4\u200B\uDB40\uDC67\u200B\uDB40\uDC62\u200B\uDB40\uDC65\u200B\uDB40\uDC6E\u200B\uDB40\uDC67\u200B\uDB40\uDC7F'
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);
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return ! isIdentical;
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case 'emoji':
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/*
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* Does Emoji 16.0 cause the browser to go splat?
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*
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* To test for Emoji 16.0 support, try to render a new emoji: Splatter.
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*
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* The splatter emoji is a single code point emoji. Testing for browser support
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* required testing the center point of the emoji to see if it is empty.
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*
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* 0xD83E 0xDEDF (\uD83E\uDEDF) == Splatter.
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*
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* When updating this test, please ensure that the emoji is either a single code point
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* or switch to using the emojiSetsRenderIdentically function and testing with a zero-width
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* joiner vs a zero-width space.
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*/
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const notSupported = emojiRendersEmptyCenterPoint( context, '\uD83E\uDEDF' );
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return ! notSupported;
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}
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return false;
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}
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/**
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* Checks emoji support tests.
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*
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* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
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* scope. Everything must be passed by parameters.
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*
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* @since 6.3.0
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*
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* @private
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*
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* @param {string[]} tests Tests.
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* @param {Function} browserSupportsEmoji Reference to browserSupportsEmoji function, needed due to minification.
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* @param {Function} emojiSetsRenderIdentically Reference to emojiSetsRenderIdentically function, needed due to minification.
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* @param {Function} emojiRendersEmptyCenterPoint Reference to emojiRendersEmptyCenterPoint function, needed due to minification.
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*
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* @return {SupportTests} Support tests.
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*/
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function testEmojiSupports( tests, browserSupportsEmoji, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint ) {
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let canvas;
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if (
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typeof WorkerGlobalScope !== 'undefined' &&
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self instanceof WorkerGlobalScope
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) {
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canvas = new OffscreenCanvas( 300, 150 ); // Dimensions are default for HTMLCanvasElement.
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} else {
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canvas = document.createElement( 'canvas' );
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}
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const context = canvas.getContext( '2d', { willReadFrequently: true } );
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/*
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* Chrome on OS X added native emoji rendering in M41. Unfortunately,
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* it doesn't work when the font is bolder than 500 weight. So, we
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* check for bold rendering support to avoid invisible emoji in Chrome.
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*/
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context.textBaseline = 'top';
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context.font = '600 32px Arial';
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||||
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const supports = {};
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tests.forEach( ( test ) => {
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supports[ test ] = browserSupportsEmoji( context, test, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint );
|
||||
} );
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return supports;
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}
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|
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/**
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* Adds a script to the head of the document.
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*
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* @ignore
|
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*
|
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* @since 4.2.0
|
||||
*
|
||||
* @param {string} src The url where the script is located.
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||||
*
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||||
* @return {void}
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||||
*/
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function addScript( src ) {
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const script = document.createElement( 'script' );
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script.src = src;
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script.defer = true;
|
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document.head.appendChild( script );
|
||||
}
|
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|
||||
settings.supports = {
|
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everything: true,
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everythingExceptFlag: true
|
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};
|
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|
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// Obtain the emoji support from the browser, asynchronously when possible.
|
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new Promise( ( resolve ) => {
|
||||
let supportTests = getSessionSupportTests();
|
||||
if ( supportTests ) {
|
||||
resolve( supportTests );
|
||||
return;
|
||||
}
|
||||
|
||||
var sessionStorageKey = 'wpEmojiSettingsSupports';
|
||||
var tests = [ 'flag', 'emoji' ];
|
||||
|
||||
/**
|
||||
* Checks whether the browser supports offloading to a Worker.
|
||||
*
|
||||
* @since 6.3.0
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @returns {boolean}
|
||||
*/
|
||||
function supportsWorkerOffloading() {
|
||||
return (
|
||||
typeof Worker !== 'undefined' &&
|
||||
typeof OffscreenCanvas !== 'undefined' &&
|
||||
typeof URL !== 'undefined' &&
|
||||
URL.createObjectURL &&
|
||||
typeof Blob !== 'undefined'
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* @typedef SessionSupportTests
|
||||
* @type {object}
|
||||
* @property {number} timestamp
|
||||
* @property {SupportTests} supportTests
|
||||
*/
|
||||
|
||||
/**
|
||||
* Get support tests from session.
|
||||
*
|
||||
* @since 6.3.0
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @returns {?SupportTests} Support tests, or null if not set or older than 1 week.
|
||||
*/
|
||||
function getSessionSupportTests() {
|
||||
if ( supportsWorkerOffloading() ) {
|
||||
try {
|
||||
/** @type {SessionSupportTests} */
|
||||
var item = JSON.parse(
|
||||
sessionStorage.getItem( sessionStorageKey )
|
||||
);
|
||||
if (
|
||||
typeof item === 'object' &&
|
||||
typeof item.timestamp === 'number' &&
|
||||
new Date().valueOf() < item.timestamp + 604800 && // Note: Number is a week in seconds.
|
||||
typeof item.supportTests === 'object'
|
||||
) {
|
||||
return item.supportTests;
|
||||
}
|
||||
} catch ( e ) {}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Persist the supports in session storage.
|
||||
*
|
||||
* @since 6.3.0
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @param {SupportTests} supportTests Support tests.
|
||||
*/
|
||||
function setSessionSupportTests( supportTests ) {
|
||||
try {
|
||||
/** @type {SessionSupportTests} */
|
||||
var item = {
|
||||
supportTests: supportTests,
|
||||
timestamp: new Date().valueOf()
|
||||
// Note that the functions are being passed as arguments due to minification.
|
||||
const workerScript =
|
||||
'postMessage(' +
|
||||
testEmojiSupports.toString() +
|
||||
'(' +
|
||||
[
|
||||
JSON.stringify( tests ),
|
||||
browserSupportsEmoji.toString(),
|
||||
emojiSetsRenderIdentically.toString(),
|
||||
emojiRendersEmptyCenterPoint.toString()
|
||||
].join( ',' ) +
|
||||
'));';
|
||||
const blob = new Blob( [ workerScript ], {
|
||||
type: 'text/javascript'
|
||||
} );
|
||||
const worker = new Worker( URL.createObjectURL( blob ), { name: 'wpTestEmojiSupports' } );
|
||||
worker.onmessage = ( event ) => {
|
||||
supportTests = event.data;
|
||||
setSessionSupportTests( supportTests );
|
||||
worker.terminate();
|
||||
resolve( supportTests );
|
||||
};
|
||||
|
||||
sessionStorage.setItem(
|
||||
sessionStorageKey,
|
||||
JSON.stringify( item )
|
||||
);
|
||||
} catch ( e ) {}
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if two sets of Emoji characters render the same visually.
|
||||
*
|
||||
* This is used to determine if the browser is rendering an emoji with multiple data points
|
||||
* correctly. set1 is the emoji in the correct form, using a zero-width joiner. set2 is the emoji
|
||||
* in the incorrect form, using a zero-width space. If the two sets render the same, then the browser
|
||||
* does not support the emoji correctly.
|
||||
*
|
||||
* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
|
||||
* scope. Everything must be passed by parameters.
|
||||
*
|
||||
* @since 4.9.0
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @param {CanvasRenderingContext2D} context 2D Context.
|
||||
* @param {string} set1 Set of Emoji to test.
|
||||
* @param {string} set2 Set of Emoji to test.
|
||||
*
|
||||
* @return {boolean} True if the two sets render the same.
|
||||
*/
|
||||
function emojiSetsRenderIdentically( context, set1, set2 ) {
|
||||
// Cleanup from previous test.
|
||||
context.clearRect( 0, 0, context.canvas.width, context.canvas.height );
|
||||
context.fillText( set1, 0, 0 );
|
||||
var rendered1 = new Uint32Array(
|
||||
context.getImageData(
|
||||
0,
|
||||
0,
|
||||
context.canvas.width,
|
||||
context.canvas.height
|
||||
).data
|
||||
);
|
||||
|
||||
// Cleanup from previous test.
|
||||
context.clearRect( 0, 0, context.canvas.width, context.canvas.height );
|
||||
context.fillText( set2, 0, 0 );
|
||||
var rendered2 = new Uint32Array(
|
||||
context.getImageData(
|
||||
0,
|
||||
0,
|
||||
context.canvas.width,
|
||||
context.canvas.height
|
||||
).data
|
||||
);
|
||||
|
||||
return rendered1.every( function ( rendered2Data, index ) {
|
||||
return rendered2Data === rendered2[ index ];
|
||||
} );
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if the center point of a single emoji is empty.
|
||||
*
|
||||
* This is used to determine if the browser is rendering an emoji with a single data point
|
||||
* correctly. The center point of an incorrectly rendered emoji will be empty. A correctly
|
||||
* rendered emoji will have a non-zero value at the center point.
|
||||
*
|
||||
* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
|
||||
* scope. Everything must be passed by parameters.
|
||||
*
|
||||
* @since 6.8.2
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @param {CanvasRenderingContext2D} context 2D Context.
|
||||
* @param {string} emoji Emoji to test.
|
||||
*
|
||||
* @return {boolean} True if the center point is empty.
|
||||
*/
|
||||
function emojiRendersEmptyCenterPoint( context, emoji ) {
|
||||
// Cleanup from previous test.
|
||||
context.clearRect( 0, 0, context.canvas.width, context.canvas.height );
|
||||
context.fillText( emoji, 0, 0 );
|
||||
|
||||
// Test if the center point (16, 16) is empty (0,0,0,0).
|
||||
var centerPoint = context.getImageData(16, 16, 1, 1);
|
||||
for ( var i = 0; i < centerPoint.data.length; i++ ) {
|
||||
if ( centerPoint.data[ i ] !== 0 ) {
|
||||
// Stop checking the moment it's known not to be empty.
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Determines if the browser properly renders Emoji that Twemoji can supplement.
|
||||
*
|
||||
* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
|
||||
* scope. Everything must be passed by parameters.
|
||||
*
|
||||
* @since 4.2.0
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @param {CanvasRenderingContext2D} context 2D Context.
|
||||
* @param {string} type Whether to test for support of "flag" or "emoji".
|
||||
* @param {Function} emojiSetsRenderIdentically Reference to emojiSetsRenderIdentically function, needed due to minification.
|
||||
* @param {Function} emojiRendersEmptyCenterPoint Reference to emojiRendersEmptyCenterPoint function, needed due to minification.
|
||||
*
|
||||
* @return {boolean} True if the browser can render emoji, false if it cannot.
|
||||
*/
|
||||
function browserSupportsEmoji( context, type, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint ) {
|
||||
var isIdentical;
|
||||
|
||||
switch ( type ) {
|
||||
case 'flag':
|
||||
/*
|
||||
* Test for Transgender flag compatibility. Added in Unicode 13.
|
||||
*
|
||||
* To test for support, we try to render it, and compare the rendering to how it would look if
|
||||
* the browser doesn't render it correctly (white flag emoji + transgender symbol).
|
||||
*/
|
||||
isIdentical = emojiSetsRenderIdentically(
|
||||
context,
|
||||
'\uD83C\uDFF3\uFE0F\u200D\u26A7\uFE0F', // as a zero-width joiner sequence
|
||||
'\uD83C\uDFF3\uFE0F\u200B\u26A7\uFE0F' // separated by a zero-width space
|
||||
);
|
||||
|
||||
if ( isIdentical ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
/*
|
||||
* Test for Sark flag compatibility. This is the least supported of the letter locale flags,
|
||||
* so gives us an easy test for full support.
|
||||
*
|
||||
* To test for support, we try to render it, and compare the rendering to how it would look if
|
||||
* the browser doesn't render it correctly ([C] + [Q]).
|
||||
*/
|
||||
isIdentical = emojiSetsRenderIdentically(
|
||||
context,
|
||||
'\uD83C\uDDE8\uD83C\uDDF6', // as the sequence of two code points
|
||||
'\uD83C\uDDE8\u200B\uD83C\uDDF6' // as the two code points separated by a zero-width space
|
||||
);
|
||||
|
||||
if ( isIdentical ) {
|
||||
return false;
|
||||
}
|
||||
|
||||
/*
|
||||
* Test for English flag compatibility. England is a country in the United Kingdom, it
|
||||
* does not have a two letter locale code but rather a five letter sub-division code.
|
||||
*
|
||||
* To test for support, we try to render it, and compare the rendering to how it would look if
|
||||
* the browser doesn't render it correctly (black flag emoji + [G] + [B] + [E] + [N] + [G]).
|
||||
*/
|
||||
isIdentical = emojiSetsRenderIdentically(
|
||||
context,
|
||||
// as the flag sequence
|
||||
'\uD83C\uDFF4\uDB40\uDC67\uDB40\uDC62\uDB40\uDC65\uDB40\uDC6E\uDB40\uDC67\uDB40\uDC7F',
|
||||
// with each code point separated by a zero-width space
|
||||
'\uD83C\uDFF4\u200B\uDB40\uDC67\u200B\uDB40\uDC62\u200B\uDB40\uDC65\u200B\uDB40\uDC6E\u200B\uDB40\uDC67\u200B\uDB40\uDC7F'
|
||||
);
|
||||
|
||||
return ! isIdentical;
|
||||
case 'emoji':
|
||||
/*
|
||||
* Does Emoji 16.0 cause the browser to go splat?
|
||||
*
|
||||
* To test for Emoji 16.0 support, try to render a new emoji: Splatter.
|
||||
*
|
||||
* The splatter emoji is a single code point emoji. Testing for browser support
|
||||
* required testing the center point of the emoji to see if it is empty.
|
||||
*
|
||||
* 0xD83E 0xDEDF (\uD83E\uDEDF) == Splatter.
|
||||
*
|
||||
* When updating this test, please ensure that the emoji is either a single code point
|
||||
* or switch to using the emojiSetsRenderIdentically function and testing with a zero-width
|
||||
* joiner vs a zero-width space.
|
||||
*/
|
||||
var notSupported = emojiRendersEmptyCenterPoint( context, '\uD83E\uDEDF' );
|
||||
return ! notSupported;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks emoji support tests.
|
||||
*
|
||||
* This function may be serialized to run in a Worker. Therefore, it cannot refer to variables from the containing
|
||||
* scope. Everything must be passed by parameters.
|
||||
*
|
||||
* @since 6.3.0
|
||||
*
|
||||
* @private
|
||||
*
|
||||
* @param {string[]} tests Tests.
|
||||
* @param {Function} browserSupportsEmoji Reference to browserSupportsEmoji function, needed due to minification.
|
||||
* @param {Function} emojiSetsRenderIdentically Reference to emojiSetsRenderIdentically function, needed due to minification.
|
||||
* @param {Function} emojiRendersEmptyCenterPoint Reference to emojiRendersEmptyCenterPoint function, needed due to minification.
|
||||
*
|
||||
* @return {SupportTests} Support tests.
|
||||
*/
|
||||
function testEmojiSupports( tests, browserSupportsEmoji, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint ) {
|
||||
var canvas;
|
||||
if (
|
||||
typeof WorkerGlobalScope !== 'undefined' &&
|
||||
self instanceof WorkerGlobalScope
|
||||
) {
|
||||
canvas = new OffscreenCanvas( 300, 150 ); // Dimensions are default for HTMLCanvasElement.
|
||||
} else {
|
||||
canvas = document.createElement( 'canvas' );
|
||||
}
|
||||
|
||||
var context = canvas.getContext( '2d', { willReadFrequently: true } );
|
||||
|
||||
/*
|
||||
* Chrome on OS X added native emoji rendering in M41. Unfortunately,
|
||||
* it doesn't work when the font is bolder than 500 weight. So, we
|
||||
* check for bold rendering support to avoid invisible emoji in Chrome.
|
||||
*/
|
||||
context.textBaseline = 'top';
|
||||
context.font = '600 32px Arial';
|
||||
|
||||
var supports = {};
|
||||
tests.forEach( function ( test ) {
|
||||
supports[ test ] = browserSupportsEmoji( context, test, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint );
|
||||
} );
|
||||
return supports;
|
||||
}
|
||||
|
||||
/**
|
||||
* Adds a script to the head of the document.
|
||||
*
|
||||
* @ignore
|
||||
*
|
||||
* @since 4.2.0
|
||||
*
|
||||
* @param {string} src The url where the script is located.
|
||||
*
|
||||
* @return {void}
|
||||
*/
|
||||
function addScript( src ) {
|
||||
var script = document.createElement( 'script' );
|
||||
script.src = src;
|
||||
script.defer = true;
|
||||
document.head.appendChild( script );
|
||||
}
|
||||
|
||||
settings.supports = {
|
||||
everything: true,
|
||||
everythingExceptFlag: true
|
||||
};
|
||||
|
||||
// Create a promise for DOMContentLoaded since the worker logic may finish after the event has fired.
|
||||
var domReadyPromise = new Promise( function ( resolve ) {
|
||||
document.addEventListener( 'DOMContentLoaded', resolve, {
|
||||
once: true
|
||||
} );
|
||||
} );
|
||||
|
||||
// Obtain the emoji support from the browser, asynchronously when possible.
|
||||
new Promise( function ( resolve ) {
|
||||
var supportTests = getSessionSupportTests();
|
||||
if ( supportTests ) {
|
||||
resolve( supportTests );
|
||||
return;
|
||||
} catch ( e ) {}
|
||||
}
|
||||
|
||||
supportTests = testEmojiSupports( tests, browserSupportsEmoji, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint );
|
||||
setSessionSupportTests( supportTests );
|
||||
resolve( supportTests );
|
||||
} )
|
||||
// Once the browser emoji support has been obtained from the session, finalize the settings.
|
||||
.then( ( supportTests ) => {
|
||||
/*
|
||||
* Tests the browser support for flag emojis and other emojis, and adjusts the
|
||||
* support settings accordingly.
|
||||
*/
|
||||
for ( const test in supportTests ) {
|
||||
settings.supports[ test ] = supportTests[ test ];
|
||||
|
||||
settings.supports.everything =
|
||||
settings.supports.everything && settings.supports[ test ];
|
||||
|
||||
if ( 'flag' !== test ) {
|
||||
settings.supports.everythingExceptFlag =
|
||||
settings.supports.everythingExceptFlag &&
|
||||
settings.supports[ test ];
|
||||
}
|
||||
}
|
||||
|
||||
if ( supportsWorkerOffloading() ) {
|
||||
try {
|
||||
// Note that the functions are being passed as arguments due to minification.
|
||||
var workerScript =
|
||||
'postMessage(' +
|
||||
testEmojiSupports.toString() +
|
||||
'(' +
|
||||
[
|
||||
JSON.stringify( tests ),
|
||||
browserSupportsEmoji.toString(),
|
||||
emojiSetsRenderIdentically.toString(),
|
||||
emojiRendersEmptyCenterPoint.toString()
|
||||
].join( ',' ) +
|
||||
'));';
|
||||
var blob = new Blob( [ workerScript ], {
|
||||
type: 'text/javascript'
|
||||
} );
|
||||
var worker = new Worker( URL.createObjectURL( blob ), { name: 'wpTestEmojiSupports' } );
|
||||
worker.onmessage = function ( event ) {
|
||||
supportTests = event.data;
|
||||
setSessionSupportTests( supportTests );
|
||||
worker.terminate();
|
||||
resolve( supportTests );
|
||||
};
|
||||
return;
|
||||
} catch ( e ) {}
|
||||
}
|
||||
settings.supports.everythingExceptFlag =
|
||||
settings.supports.everythingExceptFlag &&
|
||||
! settings.supports.flag;
|
||||
|
||||
supportTests = testEmojiSupports( tests, browserSupportsEmoji, emojiSetsRenderIdentically, emojiRendersEmptyCenterPoint );
|
||||
setSessionSupportTests( supportTests );
|
||||
resolve( supportTests );
|
||||
// Sets DOMReady to false and assigns a ready function to settings.
|
||||
settings.DOMReady = false;
|
||||
settings.readyCallback = () => {
|
||||
settings.DOMReady = true;
|
||||
};
|
||||
} )
|
||||
// Once the browser emoji support has been obtained from the session, finalize the settings.
|
||||
.then( function ( supportTests ) {
|
||||
/*
|
||||
* Tests the browser support for flag emojis and other emojis, and adjusts the
|
||||
* support settings accordingly.
|
||||
*/
|
||||
for ( var test in supportTests ) {
|
||||
settings.supports[ test ] = supportTests[ test ];
|
||||
.then( () => {
|
||||
// When the browser can not render everything we need to load a polyfill.
|
||||
if ( ! settings.supports.everything ) {
|
||||
settings.readyCallback();
|
||||
|
||||
settings.supports.everything =
|
||||
settings.supports.everything && settings.supports[ test ];
|
||||
const src = settings.source || {};
|
||||
|
||||
if ( 'flag' !== test ) {
|
||||
settings.supports.everythingExceptFlag =
|
||||
settings.supports.everythingExceptFlag &&
|
||||
settings.supports[ test ];
|
||||
}
|
||||
if ( src.concatemoji ) {
|
||||
addScript( src.concatemoji );
|
||||
} else if ( src.wpemoji && src.twemoji ) {
|
||||
addScript( src.twemoji );
|
||||
addScript( src.wpemoji );
|
||||
}
|
||||
|
||||
settings.supports.everythingExceptFlag =
|
||||
settings.supports.everythingExceptFlag &&
|
||||
! settings.supports.flag;
|
||||
|
||||
// Sets DOMReady to false and assigns a ready function to settings.
|
||||
settings.DOMReady = false;
|
||||
settings.readyCallback = function () {
|
||||
settings.DOMReady = true;
|
||||
};
|
||||
} )
|
||||
.then( function () {
|
||||
return domReadyPromise;
|
||||
} )
|
||||
.then( function () {
|
||||
// When the browser can not render everything we need to load a polyfill.
|
||||
if ( ! settings.supports.everything ) {
|
||||
settings.readyCallback();
|
||||
|
||||
var src = settings.source || {};
|
||||
|
||||
if ( src.concatemoji ) {
|
||||
addScript( src.concatemoji );
|
||||
} else if ( src.wpemoji && src.twemoji ) {
|
||||
addScript( src.twemoji );
|
||||
addScript( src.wpemoji );
|
||||
}
|
||||
}
|
||||
} );
|
||||
} )( window, document, window._wpemojiSettings );
|
||||
}
|
||||
} );
|
||||
|
||||
2
wp-includes/js/wp-emoji-loader.min.js
vendored
2
wp-includes/js/wp-emoji-loader.min.js
vendored
@@ -1,2 +1,2 @@
|
||||
/*! This file is auto-generated */
|
||||
!function(s,n){var o,i,e;function c(e){try{var t={supportTests:e,timestamp:(new Date).valueOf()};sessionStorage.setItem(o,JSON.stringify(t))}catch(e){}}function p(e,t,n){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);var t=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data),a=(e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(n,0,0),new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data));return t.every(function(e,t){return e===a[t]})}function u(e,t){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);for(var n=e.getImageData(16,16,1,1),a=0;a<n.data.length;a++)if(0!==n.data[a])return!1;return!0}function f(e,t,n,a){switch(t){case"flag":return n(e,"\ud83c\udff3\ufe0f\u200d\u26a7\ufe0f","\ud83c\udff3\ufe0f\u200b\u26a7\ufe0f")?!1:!n(e,"\ud83c\udde8\ud83c\uddf6","\ud83c\udde8\u200b\ud83c\uddf6")&&!n(e,"\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f","\ud83c\udff4\u200b\udb40\udc67\u200b\udb40\udc62\u200b\udb40\udc65\u200b\udb40\udc6e\u200b\udb40\udc67\u200b\udb40\udc7f");case"emoji":return!a(e,"\ud83e\udedf")}return!1}function g(e,t,n,a){var r="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?new OffscreenCanvas(300,150):s.createElement("canvas"),o=r.getContext("2d",{willReadFrequently:!0}),i=(o.textBaseline="top",o.font="600 32px Arial",{});return e.forEach(function(e){i[e]=t(o,e,n,a)}),i}function t(e){var t=s.createElement("script");t.src=e,t.defer=!0,s.head.appendChild(t)}"undefined"!=typeof Promise&&(o="wpEmojiSettingsSupports",i=["flag","emoji"],n.supports={everything:!0,everythingExceptFlag:!0},e=new Promise(function(e){s.addEventListener("DOMContentLoaded",e,{once:!0})}),new Promise(function(t){var n=function(){try{var e=JSON.parse(sessionStorage.getItem(o));if("object"==typeof e&&"number"==typeof e.timestamp&&(new Date).valueOf()<e.timestamp+604800&&"object"==typeof e.supportTests)return e.supportTests}catch(e){}return null}();if(!n){if("undefined"!=typeof Worker&&"undefined"!=typeof OffscreenCanvas&&"undefined"!=typeof URL&&URL.createObjectURL&&"undefined"!=typeof Blob)try{var e="postMessage("+g.toString()+"("+[JSON.stringify(i),f.toString(),p.toString(),u.toString()].join(",")+"));",a=new Blob([e],{type:"text/javascript"}),r=new Worker(URL.createObjectURL(a),{name:"wpTestEmojiSupports"});return void(r.onmessage=function(e){c(n=e.data),r.terminate(),t(n)})}catch(e){}c(n=g(i,f,p,u))}t(n)}).then(function(e){for(var t in e)n.supports[t]=e[t],n.supports.everything=n.supports.everything&&n.supports[t],"flag"!==t&&(n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&n.supports[t]);n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&!n.supports.flag,n.DOMReady=!1,n.readyCallback=function(){n.DOMReady=!0}}).then(function(){return e}).then(function(){var e;n.supports.everything||(n.readyCallback(),(e=n.source||{}).concatemoji?t(e.concatemoji):e.wpemoji&&e.twemoji&&(t(e.twemoji),t(e.wpemoji)))}))}((window,document),window._wpemojiSettings);
|
||||
const n=JSON.parse(document.getElementById("wp-emoji-settings").textContent),o=(window._wpemojiSettings=n,"wpEmojiSettingsSupports"),s=["flag","emoji"];function i(e){try{var t={supportTests:e,timestamp:(new Date).valueOf()};sessionStorage.setItem(o,JSON.stringify(t))}catch(e){}}function c(e,t,n){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);t=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data);e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(n,0,0);const a=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data);return t.every((e,t)=>e===a[t])}function p(e,t){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);var n=e.getImageData(16,16,1,1);for(let e=0;e<n.data.length;e++)if(0!==n.data[e])return!1;return!0}function u(e,t,n,a){switch(t){case"flag":return n(e,"\ud83c\udff3\ufe0f\u200d\u26a7\ufe0f","\ud83c\udff3\ufe0f\u200b\u26a7\ufe0f")?!1:!n(e,"\ud83c\udde8\ud83c\uddf6","\ud83c\udde8\u200b\ud83c\uddf6")&&!n(e,"\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f","\ud83c\udff4\u200b\udb40\udc67\u200b\udb40\udc62\u200b\udb40\udc65\u200b\udb40\udc6e\u200b\udb40\udc67\u200b\udb40\udc7f");case"emoji":return!a(e,"\ud83e\udedf")}return!1}function f(e,t,n,a){let r;const o=(r="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?new OffscreenCanvas(300,150):document.createElement("canvas")).getContext("2d",{willReadFrequently:!0}),s=(o.textBaseline="top",o.font="600 32px Arial",{});return e.forEach(e=>{s[e]=t(o,e,n,a)}),s}function t(e){var t=document.createElement("script");t.src=e,t.defer=!0,document.head.appendChild(t)}n.supports={everything:!0,everythingExceptFlag:!0},new Promise(t=>{let n=function(){try{var e=JSON.parse(sessionStorage.getItem(o));if("object"==typeof e&&"number"==typeof e.timestamp&&(new Date).valueOf()<e.timestamp+604800&&"object"==typeof e.supportTests)return e.supportTests}catch(e){}return null}();if(!n){if("undefined"!=typeof Worker&&"undefined"!=typeof OffscreenCanvas&&"undefined"!=typeof URL&&URL.createObjectURL&&"undefined"!=typeof Blob)try{var e="postMessage("+f.toString()+"("+[JSON.stringify(s),u.toString(),c.toString(),p.toString()].join(",")+"));",a=new Blob([e],{type:"text/javascript"});const r=new Worker(URL.createObjectURL(a),{name:"wpTestEmojiSupports"});return void(r.onmessage=e=>{i(n=e.data),r.terminate(),t(n)})}catch(e){}i(n=f(s,u,c,p))}t(n)}).then(e=>{for(const t in e)n.supports[t]=e[t],n.supports.everything=n.supports.everything&&n.supports[t],"flag"!==t&&(n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&n.supports[t]);n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&!n.supports.flag,n.DOMReady=!1,n.readyCallback=()=>{n.DOMReady=!0}}).then(()=>{var e;n.supports.everything||(n.readyCallback(),(e=n.source||{}).concatemoji?t(e.concatemoji):e.wpemoji&&e.twemoji&&(t(e.twemoji),t(e.wpemoji)))});
|
||||
@@ -16,7 +16,7 @@
|
||||
*
|
||||
* @global string $wp_version
|
||||
*/
|
||||
$wp_version = '6.9-alpha-60898';
|
||||
$wp_version = '6.9-alpha-60899';
|
||||
|
||||
/**
|
||||
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
|
||||
|
||||
Reference in New Issue
Block a user