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| author | syuilo <4439005+syuilo@users.noreply.github.com> | 2025-03-09 14:28:01 +0900 |
|---|---|---|
| committer | syuilo <4439005+syuilo@users.noreply.github.com> | 2025-03-09 14:28:01 +0900 |
| commit | be7e3b9a0cb81b78a744993fef2fa2fd2833fa9c (patch) | |
| tree | c82e18ce93ec0a24c57d7e36eb54a09266b3a25b /packages/frontend/src/utility/upload/isWebpSupported.ts | |
| parent | enhnace(frontend): 文字列比較のためのローマナイズを強化（... (diff) | |
| download | misskey-be7e3b9a0cb81b78a744993fef2fa2fd2833fa9c.tar.gz misskey-be7e3b9a0cb81b78a744993fef2fa2fd2833fa9c.tar.bz2 misskey-be7e3b9a0cb81b78a744993fef2fa2fd2833fa9c.zip | |
refactor(frontend): scripts -> utility
Diffstat (limited to 'packages/frontend/src/utility/upload/isWebpSupported.ts')
| -rw-r--r-- | packages/frontend/src/utility/upload/isWebpSupported.ts | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/packages/frontend/src/utility/upload/isWebpSupported.ts b/packages/frontend/src/utility/upload/isWebpSupported.ts new file mode 100644 index 0000000000..2511236ecc --- /dev/null +++ b/packages/frontend/src/utility/upload/isWebpSupported.ts @@ -0,0 +1,15 @@ +/* + * SPDX-FileCopyrightText: syuilo and misskey-project + * SPDX-License-Identifier: AGPL-3.0-only + */ + +let isWebpSupportedCache: boolean | undefined; +export function isWebpSupported() { + if (isWebpSupportedCache === undefined) { + const canvas = document.createElement('canvas'); + canvas.width = 1; + canvas.height = 1; + isWebpSupportedCache = canvas.toDataURL('image/webp').startsWith('data:image/webp'); + } + return isWebpSupportedCache; +} |