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FontFaceSet: loading イベント - Web API | MDN
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FontFaceSet: loading イベント
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2020年1月.
loading イベントは、文書がフォントの読み込みを始めるときに発行されます。
構文
このイベント名を addEventListener() などのメソッドで使用するか、イベントハンドラープロパティを設定するかしてください。
js
addEventListener("loading", (event) => {});
onloading = (event) => {};
例
次の例では、フォント Ephesis が読み込まれ始めると、"Font is loading..." とコンソールに表示されます。
js
document.fonts.onloading = () => {
console.log("Font is loading");
};
(async () => {
await document.fonts.load("16px Ephesis");
})();
仕様書
| Specification |
|---|
| CSS Font Loading Module Level 3 # dom-fontfaceset-onloading |
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