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2026-05-25 17:08:18 +08:00
parent df501f6151
commit f1259b71b5
9178 changed files with 1626125 additions and 0 deletions
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+// Thanks to https://github.com/andreypopp/react-textarea-autosize/
+
+/**
+ * calculateNodeHeight(uiTextNode, useCache = false)
+ */
+
+const HIDDEN_TEXTAREA_STYLE = `
+  min-height:0 !important;
+  max-height:none !important;
+  height:0 !important;
+  visibility:hidden !important;
+  overflow:hidden !important;
+  position:absolute !important;
+  z-index:-1000 !important;
+  top:0 !important;
+  right:0 !important;
+  pointer-events: none !important;
+`;
+const SIZING_STYLE = ['letter-spacing', 'line-height', 'padding-top', 'padding-bottom', 'font-family', 'font-weight', 'font-size', 'font-variant', 'text-rendering', 'text-transform', 'width', 'text-indent', 'padding-left', 'padding-right', 'border-width', 'box-sizing', 'word-break', 'white-space'];
+const computedStyleCache = {};
+let hiddenTextarea;
+export function calculateNodeStyling(node, useCache = false) {
+  const nodeRef = node.getAttribute('id') || node.getAttribute('data-reactid') || node.getAttribute('name');
+  if (useCache && computedStyleCache[nodeRef]) {
+    return computedStyleCache[nodeRef];
+  }
+  const style = window.getComputedStyle(node);
+  const boxSizing = style.getPropertyValue('box-sizing') || style.getPropertyValue('-moz-box-sizing') || style.getPropertyValue('-webkit-box-sizing');
+  const paddingSize = parseFloat(style.getPropertyValue('padding-bottom')) + parseFloat(style.getPropertyValue('padding-top'));
+  const borderSize = parseFloat(style.getPropertyValue('border-bottom-width')) + parseFloat(style.getPropertyValue('border-top-width'));
+  const sizingStyle = SIZING_STYLE.map(name => `${name}:${style.getPropertyValue(name)}`).join(';');
+  const nodeInfo = {
+    sizingStyle,
+    paddingSize,
+    borderSize,
+    boxSizing
+  };
+  if (useCache && nodeRef) {
+    computedStyleCache[nodeRef] = nodeInfo;
+  }
+  return nodeInfo;
+}
+export default function calculateAutoSizeStyle(uiTextNode, useCache = false, minRows = null, maxRows = null) {
+  if (!hiddenTextarea) {
+    hiddenTextarea = document.createElement('textarea');
+    hiddenTextarea.setAttribute('tab-index', '-1');
+    hiddenTextarea.setAttribute('aria-hidden', 'true');
+    // fix: A form field element should have an id or name attribute
+    // A form field element has neither an id nor a name attribute. This might prevent the browser from correctly autofilling the form.
+    // https://developer.mozilla.org/en-US/docs/Web/HTML/Element/textarea
+    hiddenTextarea.setAttribute('name', 'hiddenTextarea');
+    document.body.appendChild(hiddenTextarea);
+  }
+
+  // Fix wrap="off" issue
+  // https://github.com/ant-design/ant-design/issues/6577
+  if (uiTextNode.getAttribute('wrap')) {
+    hiddenTextarea.setAttribute('wrap', uiTextNode.getAttribute('wrap'));
+  } else {
+    hiddenTextarea.removeAttribute('wrap');
+  }
+
+  // Copy all CSS properties that have an impact on the height of the content in
+  // the textbox
+  const {
+    paddingSize,
+    borderSize,
+    boxSizing,
+    sizingStyle
+  } = calculateNodeStyling(uiTextNode, useCache);
+
+  // Need to have the overflow attribute to hide the scrollbar otherwise
+  // text-lines will not calculated properly as the shadow will technically be
+  // narrower for content
+  hiddenTextarea.setAttribute('style', `${sizingStyle};${HIDDEN_TEXTAREA_STYLE}`);
+  hiddenTextarea.value = uiTextNode.value || uiTextNode.placeholder || '';
+  let minHeight = undefined;
+  let maxHeight = undefined;
+  let overflowY;
+  let height = hiddenTextarea.scrollHeight;
+  if (boxSizing === 'border-box') {
+    // border-box: add border, since height = content + padding + border
+    height += borderSize;
+  } else if (boxSizing === 'content-box') {
+    // remove padding, since height = content
+    height -= paddingSize;
+  }
+  if (minRows !== null || maxRows !== null) {
+    // measure height of a textarea with a single row
+    hiddenTextarea.value = ' ';
+    const singleRowHeight = hiddenTextarea.scrollHeight - paddingSize;
+    if (minRows !== null) {
+      minHeight = singleRowHeight * minRows;
+      if (boxSizing === 'border-box') {
+        minHeight = minHeight + paddingSize + borderSize;
+      }
+      height = Math.max(minHeight, height);
+    }
+    if (maxRows !== null) {
+      maxHeight = singleRowHeight * maxRows;
+      if (boxSizing === 'border-box') {
+        maxHeight = maxHeight + paddingSize + borderSize;
+      }
+      overflowY = height > maxHeight ? '' : 'hidden';
+      height = Math.min(maxHeight, height);
+    }
+  }
+  const style = {
+    height,
+    overflowY,
+    resize: 'none'
+  };
+  if (minHeight) {
+    style.minHeight = minHeight;
+  }
+  if (maxHeight) {
+    style.maxHeight = maxHeight;
+  }
+  return style;
+}