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- import { isFirefox } from '../../../utils/browser.mjs';
- import { isNumber } from '../../../utils/types.mjs';
- let hiddenTextarea = void 0;
- const HIDDEN_STYLE = {
- height: "0",
- visibility: "hidden",
- overflow: isFirefox() ? "" : "hidden",
- position: "absolute",
- "z-index": "-1000",
- top: "0",
- right: "0"
- };
- const CONTEXT_STYLE = [
- "letter-spacing",
- "line-height",
- "padding-top",
- "padding-bottom",
- "font-family",
- "font-weight",
- "font-size",
- "text-rendering",
- "text-transform",
- "width",
- "text-indent",
- "padding-left",
- "padding-right",
- "border-width",
- "box-sizing",
- "word-break"
- ];
- function calculateNodeStyling(targetElement) {
- const style = window.getComputedStyle(targetElement);
- const boxSizing = style.getPropertyValue("box-sizing");
- const paddingSize = Number.parseFloat(style.getPropertyValue("padding-bottom")) + Number.parseFloat(style.getPropertyValue("padding-top"));
- const borderSize = Number.parseFloat(style.getPropertyValue("border-bottom-width")) + Number.parseFloat(style.getPropertyValue("border-top-width"));
- const contextStyle = CONTEXT_STYLE.map((name) => [
- name,
- style.getPropertyValue(name)
- ]);
- return { contextStyle, paddingSize, borderSize, boxSizing };
- }
- function calcTextareaHeight(targetElement, minRows = 1, maxRows) {
- var _a, _b;
- if (!hiddenTextarea) {
- hiddenTextarea = document.createElement("textarea");
- ((_a = targetElement.parentNode) != null ? _a : document.body).appendChild(hiddenTextarea);
- }
- const { paddingSize, borderSize, boxSizing, contextStyle } = calculateNodeStyling(targetElement);
- contextStyle.forEach(([key, value]) => hiddenTextarea == null ? void 0 : hiddenTextarea.style.setProperty(key, value));
- Object.entries(HIDDEN_STYLE).forEach(([key, value]) => hiddenTextarea == null ? void 0 : hiddenTextarea.style.setProperty(key, value, "important"));
- hiddenTextarea.value = targetElement.value || targetElement.placeholder || "";
- let height = hiddenTextarea.scrollHeight;
- const result = {};
- if (boxSizing === "border-box") {
- height = height + borderSize;
- } else if (boxSizing === "content-box") {
- height = height - paddingSize;
- }
- hiddenTextarea.value = "";
- const singleRowHeight = hiddenTextarea.scrollHeight - paddingSize;
- if (isNumber(minRows)) {
- let minHeight = singleRowHeight * minRows;
- if (boxSizing === "border-box") {
- minHeight = minHeight + paddingSize + borderSize;
- }
- height = Math.max(minHeight, height);
- result.minHeight = `${minHeight}px`;
- }
- if (isNumber(maxRows)) {
- let maxHeight = singleRowHeight * maxRows;
- if (boxSizing === "border-box") {
- maxHeight = maxHeight + paddingSize + borderSize;
- }
- height = Math.min(maxHeight, height);
- }
- result.height = `${height}px`;
- (_b = hiddenTextarea.parentNode) == null ? void 0 : _b.removeChild(hiddenTextarea);
- hiddenTextarea = void 0;
- return result;
- }
- export { calcTextareaHeight };
- //# sourceMappingURL=utils.mjs.map
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