feat: add title deletable property #670

docs/en/guide/schema.md

@@ -154,7 +154,10 @@ interface IElement {
   };
   // title
   level?: TitleLevel;
-  title?: ITitle;
+  title?: {
+    conceptId?: string;
+    deletable?: boolean;
+  };
   // list
   listType?: ListType;
   listStyle?: ListStyle;

docs/guide/schema.md

@@ -154,7 +154,10 @@ interface IElement {
   };
   // 标题
   level?: TitleLevel;
-  title?: ITitle;
+  title?: {
+    conceptId?: string;
+    deletable?: boolean;
+  };
   // 列表
   listType?: ListType;
   listStyle?: ListStyle;

src/editor/core/draw/Draw.ts

@@ -685,7 +685,11 @@ export class Draw {
       if (!this.control.getActiveControl()) {
         let deleteIndex = endIndex - 1
         while (deleteIndex >= start) {
-          if (elementList[deleteIndex]?.control?.deletable !== false) {
+          const deleteElement = elementList[deleteIndex]
+          if (
+            deleteElement?.control?.deletable !== false &&
+            deleteElement?.title?.deletable !== false
+          ) {
             elementList.splice(deleteIndex, 1)
           }
           deleteIndex--

src/editor/interface/Title.ts

@@ -12,7 +12,11 @@ export interface ITitleSizeOption {
 
 export type ITitleOption = ITitleSizeOption & {}
 
-export interface ITitle {
+export interface ITitleRule {
+  deletable?: boolean
+}
+
+export type ITitle = ITitleRule & {
   conceptId?: string
 }