* Use `sessionStorage` to remember the previous results of calls to `browserSupportsEmoji()` for 1 week.
* Optimize reading from canvas by supplying the `willReadFrequently` option for the 2D context.
* When `OffscreenCanvas` is available, offload `browserSupportsEmoji()` to a web worker to prevent blocking the main thread. This is of primary benefit to Safari which does not yet support `willReadFrequently`.
* Remove obsolete support for IE11 since promises are now utilized. Nevertheless, ES3 syntax is maintained and IE11 will simply short-circuit.
Props westonruter, dmsnell, peterwilsoncc, valterlorran, flixos90, spacedmonkey, joemcgill.
Fixes#58472.
Built from https://develop.svn.wordpress.org/trunk@56074
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The emoji feature detection that occurs on every page load by default has been broken at least since [45769], causing the feature detection to fail for browsers that in fact support emoji correctly. This has led to the `wp-emoji-release.min.js` file being loaded unnecessarily even in modern browsers, which accounts for roughly 4.7 KB of extra JavaScript on every page load.
This changeset fixes the feature detection, by using the correct sequences of char codes.
Props sergiomdgomes, dmsnell, peterwilsoncc.
Fixes#57301.
Built from https://develop.svn.wordpress.org/trunk@55241
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This version introduces support for the latest Emoji added in version Emoji 13.1, which includes “face in clouds”, “face exhaling”, and of course, “face with spiral eyes”.
A new corresponding folder has been pushed to WordPress.org in [dotorg:17419].
Rages deep within, ❤️🔥.
Props kraftbj., desrosj.
Fixes#52852.
Built from https://develop.svn.wordpress.org/trunk@51113
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This upgrade adds support for the transgender flag: 🏳️⚧️
There's some additional housekeeping in this commit:
- Twemoji recently rearranged their repository and package, so `Gruntfile.js` needed tweaking to allow for that.
- As only new files were added in this Twemoji release, the CDN version didn't need updating.
Fixes#47852.
Built from https://develop.svn.wordpress.org/trunk@45769
git-svn-id: http://core.svn.wordpress.org/trunk@45580 1a063a9b-81f0-0310-95a4-ce76da25c4cd
These annotations make it clear to the reader of a JavaScript source
where the build process outputs to. These annotations can later be
integrated in a webpack configuration. This way there is one source of
truth.
The `build` folder is omitted from the paths, because a single JS file
shouldn't not be responsible of knowing where outputs in general will
end up at. A file only knows its output location relative to the
project.
Props adamsilverstein, herregroen, omarreiss, pento.
Fixes#44361.
Built from https://develop.svn.wordpress.org/trunk@43347
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Replaces the fairy (male) browser support test with a woman in business suit levitating. While the things that make people different sometimes become less obvious this isn't always a problem, because the things that make you strange are the things that make you powerful.
Fixes#42862 for trunk.
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Moves the repeated code in the emoji browser support test to a function to reduced the potential for errors and follow DRY principles.
Renames the "emoji4" test "emoji" as unicode version specific tests were removed in [38869].
Props peterwilsoncc, pento for code review.
Fixes#41156.
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Fixes the UN flag not being correctly compared to itself, introduced in [40837].
Replaces the bearded person check with a male fairy. Emoji 5 does not have gendered bearded people, so we needed to switch it out to use the ZWJ check for a broken render.
Props peterwilsoncc for the code and commit message.
Fixes#40858.
Built from https://develop.svn.wordpress.org/trunk@40850
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Updates Twemoji to 2.3.0 to include Emoji 5 support.
The pride flag test is replaced with a test for the English flag, a five character sub-devision locale. The UN flag test is retained as the most recent two character locale.
An Emoji 5 "bearded person" replaces both Emoji 4 tests.
Fixes#40858.
Built from https://develop.svn.wordpress.org/trunk@40837
git-svn-id: http://core.svn.wordpress.org/trunk@40688 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Updates Twemoji and adds a second Emoji 4 test to include a shrugging man. Emoji 4 is being implemented gradually, while some browsers now support the female technologist, the indifferent shrugging man is breaking things with his presence.
Props peterwilsoncc, pento for code review.
Fixes#40615.
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Previously, the UN flag test relied on the image being produced to be quite small. Unfortunately, the Chrome PNG encoder seems to have changed recently, and it now produces a relatively large image.
For a better test, we can compare the rendering of [U] + [N] against [U] + zero width space + [N].
Fixes#40616.
Built from https://develop.svn.wordpress.org/trunk@40582
git-svn-id: http://core.svn.wordpress.org/trunk@40452 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improve performance of Emoji tests and loading of the polyfill.
Reduces the number of tests to determine browser support for emoji to those most likely to fail. Adds the defer flag to the loaded scripts for browsers lacking support.
Props superpoincare for perf testing, peterwilsoncc.
Fixes#37817.
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[38179] added support for the rainbow flag to core, but platform compatibility is a bit strange, because the flag was defined out of sync with the usual Unicode release cycle. For example Android N supports all Unicode 9.0 emoji, but doesn't support the rainbow flag thus the rainbow flag isn't rendered.
The Twemoji loader already has an exception for flags - it'll load if the browser supports everything but flags, and then only replace flag emoji, leaving everything else as native rendering. To provide a seamless experience for all flags the loader now uses the rainbow flag to test flag support.
Props pento.
See #37543.
Fixes#37566.
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This includes a new test in the emoji loader, to see if the browser supports rendering Unicode 9.0 emoji, as well as an update to `twemoji.js`, to load Unicode 9.0 twemoji images.
The default CDN location for loading Twemoji images has changed, moving to a versioned subdirectory. This allows updates without needing to purge the CDN.
Fixes#37361.
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[37028] missed some logic to capture the base emoji skin tone, to compare to the modified emoji skin tone. This caused all browsers to report that they supported skin tone modifiers, regardless of whether they actually did.
Fixes#36604 for trunk.
Built from https://develop.svn.wordpress.org/trunk@37256
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When the browser test for diversity emoji was added in [36160], it included a workaround for Chrome not being able to compare `Uint8ClampedArray` objects directly, by converting them to a string. Unfortunately, Safari doesn't support the `Uint8ClampedArray.toString()` method correctly, so the test was incorrectly failing in Safari.
Fixes#36266 for trunk.
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As new sets of emoji are added to Unicode, and browsers add support for them at random intervals, we'll inevitably need to add new tests to the emoji loader. This change makes it much easier to add new tests as they're needed.
Fixes#35300.
Built from https://develop.svn.wordpress.org/trunk@36816
git-svn-id: http://core.svn.wordpress.org/trunk@36783 1a063a9b-81f0-0310-95a4-ce76da25c4cd
