feat:add pick text for word count

src/editor/core/worker/works/wordCount.ts

@@ -1,7 +1,95 @@
 import { IElement } from '../../../interface/Element'
 
+enum ElementType {
+  TEXT = 'text',
+  TABLE = 'table',
+  HYPERLINK = 'hyperlink',
+  CONTROL = 'control'
+}
+
+enum ControlComponent {
+  VALUE = 'value'
+}
+
+function pickText(elementList: IElement[]): string {
+  let text = ''
+  let e = 0
+  while (e < elementList.length) {
+    const element = elementList[e]
+    // 表格、超链接递归处理
+    if (element.type === ElementType.TABLE) {
+      if (element.trList) {
+        for (let t = 0; t < element.trList.length; t++) {
+          const tr = element.trList[t]
+          for (let d = 0; d < tr.tdList.length; d++) {
+            const td = tr.tdList[d]
+            text += pickText(td.value)
+          }
+        }
+      }
+    } else if (element.type === ElementType.HYPERLINK) {
+      const hyperlinkId = element.hyperlinkId
+      const valueList: IElement[] = []
+      while (e < elementList.length) {
+        const hyperlinkE = elementList[e]
+        if (hyperlinkId !== hyperlinkE.hyperlinkId) {
+          e--
+          break
+        }
+        delete hyperlinkE.type
+        valueList.push(hyperlinkE)
+        e++
+      }
+      text += pickText(valueList)
+    } else if (element.type === ElementType.CONTROL) {
+      const controlId = element.controlId
+      const valueList: IElement[] = []
+      while (e < elementList.length) {
+        const controlE = elementList[e]
+        if (controlId !== controlE.controlId) {
+          e--
+          break
+        }
+        if (controlE.controlComponent === ControlComponent.VALUE) {
+          delete controlE.type
+          valueList.push(controlE)
+        }
+        e++
+      }
+      text += pickText(valueList)
+    }
+    // 文本追加
+    if (!element.type || element.type === ElementType.TEXT) {
+      text += element.value
+    }
+    e++
+  }
+  return text
+}
+
+function groupText(text: string): string[] {
+  const textList: string[] = []
+  for (const t of text) {
+    textList.push(t)
+  }
+  return textList
+}
+
 onmessage = (evt) => {
   const elementList = <IElement[]>evt.data
-  // TODO:
-  postMessage(elementList.length)
+
+  // 提取所有文本
+  const originText = pickText(elementList)
+
+  // 过滤文本
+  const ZERO = '\u200B'
+  const WRAP = '\n'
+  const filterText = originText
+    .replace(new RegExp(`^${ZERO}`), '')
+    .replace(new RegExp(ZERO, 'g'), WRAP)
+
+  // 英文或数字以逗号/换行符分隔为一个字数
+  const textGroup = groupText(filterText)
+
+  postMessage(textGroup.length)
 }