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