fix: issue 2602

src/components/block/index.ts

@@ -728,6 +728,17 @@ export default class Block extends EventsDispatcher<BlockEvents> {
     return convertBlockDataToString(blockData, this.tool.conversionConfig);
   }
 
+  public supportUpdate(): boolean {
+    return !!this.toolInstance.update;
+  }
+
+  public update(newData: Partial<BlockToolData>): void {
+    if (!this.toolInstance.update) {
+      return;
+    }
+    this.toolInstance.update(newData);
+  }
+
   /**
    * Make default Block wrappers and put Tool`s content there
    *

src/components/modules/blockManager.ts

@@ -344,23 +344,28 @@ export default class BlockManager extends Module {
    */
   public async update(block: Block, data: Partial<BlockToolData>): Promise<Block> {
     const existingData = await block.data;
-
-    const newBlock = this.composeBlock({
-      id: block.id,
-      tool: block.name,
-      data: Object.assign({}, existingData, data),
-      tunes: block.tunes,
-    });
-
     const blockIndex = this.getBlockIndex(block);
+    let updatedBlock = null;
 
-    this._blocks.replace(blockIndex, newBlock);
+    if (block.supportUpdate()) {
+      block.update(Object.assign({}, existingData, data));
+      updatedBlock = block;
+    } else {
+      updatedBlock = this.composeBlock({
+        id: block.id,
+        tool: block.name,
+        data: Object.assign({}, existingData, data),
+        tunes: block.tunes,
+      });
+
+      this._blocks.replace(blockIndex, updatedBlock);
+    }
 
-    this.blockDidMutated(BlockChangedMutationType, newBlock, {
+    this.blockDidMutated(BlockChangedMutationType, updatedBlock, {
       index: blockIndex,
     });
 
-    return newBlock;
+    return updatedBlock;
   }
 
   /**

types/tools/block-tool.d.ts

@@ -64,6 +64,11 @@ export interface BlockTool extends BaseTool {
    */
   rendered?(): void;
 
+  /**
+   * Call to update block content
+   */
+  update?(data: Partial<BlockToolData>): void;
+
   /**
    * Called each time block content is updated
    */