feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/common/chat-area/text-grab/src/utils/get-selection-data.ts

@@ -0,0 +1,123 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+import { type SelectionData } from '../types/selection';
+import {
+  CONTENT_ATTRIBUTE_NAME,
+  MESSAGE_SOURCE_ATTRIBUTE_NAME,
+} from '../constants/range';
+import { shouldRefineRange } from './should-refine-range';
+import { refineRange } from './refine-range/refine-range';
+import { getOriginContentText } from './normalizer/get-origin-content-text';
+import { getNormalizeNodeList } from './normalizer/get-normalize-node-list';
+import { getHumanizedContentText } from './normalizer/get-humanize-content-text';
+import { hasVisibleSelection } from './helper/is-range-collapsed';
+import { getSelectionDirection } from './helper/get-selection-direction';
+import { getAncestorAttributeNode } from './get-ancestor-attribute-node';
+
+export const getSelectionData = ({
+  selection,
+  hasFix,
+}: {
+  selection: Selection;
+  hasFix?: boolean;
+}): SelectionData | undefined => {
+  if (!selection.rangeCount) {
+    return;
+  }
+
+  const range = selection.getRangeAt(0);
+
+  if (!range) {
+    return;
+  }
+
+  const documentFragment = range.cloneContents();
+
+  const direction = getSelectionDirection(selection);
+
+  /**
+   * 通过获取特定标识 判断是否是可以划选的元素
+   */
+  const ancestorNodeWithAttribute = getAncestorAttributeNode(
+    range.commonAncestorContainer.parentNode,
+    CONTENT_ATTRIBUTE_NAME,
+  );
+
+  // 特定标识
+  const ancestorAttributeValue =
+    ancestorNodeWithAttribute?.attributes.getNamedItem(CONTENT_ATTRIBUTE_NAME)
+      ?.value ?? null;
+
+  // 信息来源
+  const messageSource = ancestorNodeWithAttribute?.attributes.getNamedItem(
+    MESSAGE_SOURCE_ATTRIBUTE_NAME,
+  )?.value;
+
+  if (!hasFix) {
+    // 尝试修复选区
+    const needFix = shouldRefineRange(range);
+
+    // 如果修复过，则重新获取执行并返回
+    if (needFix) {
+      const isFix = refineRange({ range });
+
+      if (!isFix) {
+        return;
+      }
+
+      return getSelectionData({
+        selection,
+        hasFix: true,
+      });
+    }
+  }
+
+  const hasVisibleSelectionResult = hasVisibleSelection(range);
+
+  if (!hasVisibleSelectionResult) {
+    return;
+  }
+
+  // 格式化的选区NodeList
+  const normalizeSelectionNodeList = getNormalizeNodeList(
+    documentFragment.childNodes,
+  );
+
+  if (!normalizeSelectionNodeList.length) {
+    return;
+  }
+
+  // 人性化文本内容
+  const humanizedContentText = getHumanizedContentText(
+    normalizeSelectionNodeList,
+  );
+
+  // 原始文本内容
+  const originContentText = getOriginContentText(normalizeSelectionNodeList);
+
+  // 如果修复选区成功了，那么他们的组件
+
+  return {
+    humanizedContentText,
+    originContentText,
+    normalizeSelectionNodeList,
+    nodesAncestorIsMessageBox: Boolean(ancestorAttributeValue),
+    ancestorAttributeValue,
+    messageSource: Number(messageSource),
+    direction,
+  };
+};