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rewrite clipboard handling (#689)

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David Luzar 2020-02-04 11:50:18 +01:00 • committed by GitHub
parent dab35c9033
commit 954d805cb3
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6 changed files with 259 additions and 99 deletions
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17
src/utils.ts
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@ -28,6 +28,7 @@ export function isInputLike(
| HTMLInputElement
| HTMLTextAreaElement
| HTMLSelectElement
| HTMLBRElement
| HTMLDivElement {
return (
(target instanceof HTMLElement && target.dataset.type === "wysiwyg") ||
@ -38,6 +39,22 @@ export function isInputLike(
);
}
export function isWritableElement(
target: Element | EventTarget | null,
): target is
| HTMLInputElement
| HTMLTextAreaElement
| HTMLBRElement
| HTMLDivElement {
return (
(target instanceof HTMLElement && target.dataset.type === "wysiwyg") ||
target instanceof HTMLBRElement || // newline in wysiwyg
target instanceof HTMLTextAreaElement ||
(target instanceof HTMLInputElement &&
(target.type === "text" || target.type === "number"))
);
}
// https://github.com/grassator/canvas-text-editor/blob/master/lib/FontMetrics.js
export function measureText(text: string, font: string) {
const line = document.createElement("div");