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Emoji: Pass functions as arguments in loader to account for minification and worker script.

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Amends [56074].
Fixes #58472.
Props joemcgill, westonruter, azaozz.


git-svn-id: https://develop.svn.wordpress.org/trunk@56095 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Weston Ruter 2023-06-28 17:24:36 +00:00
parent eaab2c9092
commit 9f9add35cb
1 changed files with 17 additions and 17 deletions
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34
src/js/_enqueues/lib/emoji-loader.js
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@ -179,10 +179,11 @@
*
* @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.
*
* @return {boolean} True if the browser can render emoji, false if it cannot.
*/
function browserSupportsEmoji( context, type ) {
function browserSupportsEmoji( context, type, emojiSetsRenderIdentically ) {
var isIdentical;
switch ( type ) {
@ -278,10 +279,12 @@
* @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.
*
* @return {SupportTests} Support tests.
*/
function testEmojiSupports( tests ) {
function testEmojiSupports( tests, browserSupportsEmoji, emojiSetsRenderIdentically ) {
var canvas;
if (
typeof WorkerGlobalScope !== 'undefined' &&
@ -304,7 +307,7 @@
var supports = {};
tests.forEach( function ( test ) {
supports[ test ] = browserSupportsEmoji( context, test );
supports[ test ] = browserSupportsEmoji( context, test, emojiSetsRenderIdentically );
} );
return supports;
}
@ -349,20 +352,17 @@
if ( supportsWorkerOffloading() ) {
try {
/*
* Note that this string contains the real source code for the
* copied functions, _not_ a string representation of them. This
* is because it's not possible to transfer a Function across
* threads. The lack of quotes is intentional. The function names
* are copied to variable names since minification will munge the
* function names, thus breaking the ability for the functions to
* refer to each other.
*/
// Note that the functions are being passed as arguments due to minification.
var workerScript =
'var emojiSetsRenderIdentically = ' + emojiSetsRenderIdentically + ';' +
'var browserSupportsEmoji = ' + browserSupportsEmoji + ';' +
'var testEmojiSupports = ' + testEmojiSupports + ';' +
'postMessage(testEmojiSupports(' + JSON.stringify(tests) + '));';
'postMessage(' +
testEmojiSupports.toString() +
'(' +
[
JSON.stringify( tests ),
browserSupportsEmoji.toString(),
emojiSetsRenderIdentically.toString()
].join( ',' ) +
'));';
var blob = new Blob( [ workerScript ], {
type: 'text/javascript'
} );
@ -376,7 +376,7 @@
} catch ( e ) {}
}
supportTests = testEmojiSupports( tests );
supportTests = testEmojiSupports( tests, browserSupportsEmoji, emojiSetsRenderIdentically );
setSessionSupportTests( supportTests );
resolve( supportTests );
} )