🎨 Add scenes for expanding and collapsing headings https://github.com/siyuan-note/siyuan/issues/15726

Signed-off-by: Daniel <845765@qq.com>

kernel/api/block.go

@@ -243,6 +243,28 @@ func getHeadingDeleteTransaction(c *gin.Context) {
 	ret.Data = transaction
 }
 
+func getHeadingInsertTransaction(c *gin.Context) {
+	ret := gulu.Ret.NewResult()
+	defer c.JSON(http.StatusOK, ret)
+
+	arg, ok := util.JsonArg(c, ret)
+	if !ok {
+		return
+	}
+
+	id := arg["id"].(string)
+
+	transaction, err := model.GetHeadingInsertTransaction(id)
+	if err != nil {
+		ret.Code = -1
+		ret.Msg = err.Error()
+		ret.Data = map[string]interface{}{"closeTimeout": 7000}
+		return
+	}
+
+	ret.Data = transaction
+}
+
 func getHeadingLevelTransaction(c *gin.Context) {
 	ret := gulu.Ret.NewResult()
 	defer c.JSON(http.StatusOK, ret)

kernel/api/router.go

@@ -214,6 +214,7 @@ func ServeAPI(ginServer *gin.Engine) {
 	ginServer.Handle("POST", "/api/block/setBlockReminder", model.CheckAuth, model.CheckAdminRole, model.CheckReadonly, setBlockReminder)
 	ginServer.Handle("POST", "/api/block/getHeadingLevelTransaction", model.CheckAuth, getHeadingLevelTransaction)
 	ginServer.Handle("POST", "/api/block/getHeadingDeleteTransaction", model.CheckAuth, getHeadingDeleteTransaction)
+	ginServer.Handle("POST", "/api/block/getHeadingInsertTransaction", model.CheckAuth, getHeadingInsertTransaction)
 	ginServer.Handle("POST", "/api/block/getHeadingChildrenIDs", model.CheckAuth, getHeadingChildrenIDs)
 	ginServer.Handle("POST", "/api/block/getHeadingChildrenDOM", model.CheckAuth, getHeadingChildrenDOM)
 	ginServer.Handle("POST", "/api/block/swapBlockRef", model.CheckAuth, model.CheckAdminRole, model.CheckReadonly, swapBlockRef)

kernel/model/block.go

@@ -628,6 +628,46 @@ func GetHeadingDeleteTransaction(id string) (transaction *Transaction, err error
 	return
 }
 
+func GetHeadingInsertTransaction(id string) (transaction *Transaction, err error) {
+	tree, err := LoadTreeByBlockID(id)
+	if err != nil {
+		return
+	}
+
+	node := treenode.GetNodeInTree(tree, id)
+	if nil == node {
+		err = errors.New(fmt.Sprintf(Conf.Language(15), id))
+		return
+	}
+
+	if ast.NodeHeading != node.Type {
+		return
+	}
+
+	var nodes []*ast.Node
+	nodes = append(nodes, node)
+	nodes = append(nodes, treenode.HeadingChildren(node)...)
+
+	transaction = &Transaction{}
+	luteEngine := util.NewLute()
+	for _, n := range nodes {
+		n.ID = ast.NewNodeID()
+		n.SetIALAttr("id", n.ID)
+
+		op := &Operation{}
+		op.ID = n.ID
+		op.Action = "insert"
+		op.Data = luteEngine.RenderNodeBlockDOM(n)
+		transaction.DoOperations = append(transaction.DoOperations, op)
+
+		op = &Operation{}
+		op.ID = n.ID
+		op.Action = "delete"
+		transaction.UndoOperations = append(transaction.UndoOperations, op)
+	}
+	return
+}
+
 func GetHeadingChildrenIDs(id string) (ret []string) {
 	tree, err := LoadTreeByBlockID(id)
 	if err != nil {