snapshot of https://github.com/toeverything/AFFiNE.git (canary, 2026-09-16; blobs > 131072B omitted)

blocksuite/docs/api/@blocksuite/std/index/classes/BlockService.md

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+[**BlockSuite API Documentation**](../../../../README.md)
+
+***
+
+[BlockSuite API Documentation](../../../../README.md) / [@blocksuite/std](../../README.md) / [index](../README.md) / BlockService
+
+# ~~Abstract Class: BlockService~~
+
+## Deprecated
+
+BlockService is deprecated. You should reconsider where to put your feature.
+
+BlockService is a legacy extension that is used to provide services to the block.
+In the previous version of BlockSuite, block service provides a way to extend the block.
+However, in the new version, we recommend using the new extension system.
+
+## Extends
+
+- [`Extension`](../../../store/classes/Extension.md)

blocksuite/docs/api/@blocksuite/std/index/classes/CommandManager.md

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+[**BlockSuite API Documentation**](../../../../README.md)
+
+***
+
+[BlockSuite API Documentation](../../../../README.md) / [@blocksuite/std](../../README.md) / [index](../README.md) / CommandManager
+
+# Class: CommandManager
+
+Command manager to manage all commands
+
+Commands are functions that take a context and a next function as arguments
+
+```ts
+const myCommand: Command<input, output> = (ctx, next) => {
+ const count = ctx.count || 0;
+
+ const success = someOperation();
+ if (success) {
+   return next({ count: count + 1 });
+ }
+ // if the command is not successful, you can return without calling next
+ return;
+```
+
+Command input and output data can be defined in the `Command` type
+
+```ts
+// input: ctx.firstName, ctx.lastName
+// output: ctx.fullName
+const myCommand: Command<{ firstName: string; lastName: string }, { fullName: string }> = (ctx, next) => {
+  const { firstName, lastName } = ctx;
+  const fullName = `${firstName} ${lastName}`;
+  return next({ fullName });
+}
+
+```
+
+---
+
+Commands can be run in two ways:
+
+1. Using `exec` method
+`exec` is used to run a single command
+```ts
+const [result, data] = commandManager.exec(myCommand, payload);
+```
+
+2. Using `chain` method
+`chain` is used to run a series of commands
+```ts
+const chain = commandManager.chain();
+const [result, data] = chain
+  .pipe(myCommand1)
+  .pipe(myCommand2, payload)
+  .run();
+```
+
+---
+
+Command chains will stop running if a command is not successful
+
+```ts
+const chain = commandManager.chain();
+const [result, data] = chain
+  .chain(myCommand1) <-- if this fail
+  .chain(myCommand2, payload) <- this won't run
+  .run();
+
+result <- result will be `false`
+```
+
+You can use `try` to run a series of commands and if one of them is successful, it will continue to the next command
+```ts
+const chain = commandManager.chain();
+const [result, data] = chain
+  .try(chain => [
+    chain.pipe(myCommand1), <- if this fail
+    chain.pipe(myCommand2, payload), <- this will run, if this success
+    chain.pipe(myCommand3), <- this won't run
+  ])
+  .run();
+```
+
+The `tryAll` method is similar to `try`, but it will run all commands even if one of them is successful
+```ts
+const chain = commandManager.chain();
+const [result, data] = chain
+  .try(chain => [
+    chain.pipe(myCommand1), <- if this success
+    chain.pipe(myCommand2), <- this will also run
+    chain.pipe(myCommand3), <- so will this
+  ])
+  .run();
+```
+
+## Extends
+
+- [`LifeCycleWatcher`](LifeCycleWatcher.md)
+
+## Methods
+
+### chain()
+
+> **chain**(): `Chain`\<`InitCommandCtx`\>
+
+Create a chain to run a series of commands
+```ts
+const chain = commandManager.chain();
+const [result, data] = chain
+  .myCommand1()
+  .myCommand2(payload)
+  .run();
+```
+
+#### Returns
+
+`Chain`\<`InitCommandCtx`\>
+
+[success, data] - success is a boolean to indicate if the chain is successful,
+  data is the final context after running the chain
+
+***
+
+### created()
+
+> **created**(): `void`
+
+Called when std is created.
+
+#### Returns
+
+`void`
+
+#### Inherited from
+
+[`LifeCycleWatcher`](LifeCycleWatcher.md).[`created`](LifeCycleWatcher.md#created)
+
+***
+
+### mounted()
+
+> **mounted**(): `void`
+
+Called when editor host is mounted.
+Which means the editor host emit the `connectedCallback` lifecycle event.
+
+#### Returns
+
+`void`
+
+#### Inherited from
+
+[`LifeCycleWatcher`](LifeCycleWatcher.md).[`mounted`](LifeCycleWatcher.md#mounted)
+
+***
+
+### rendered()
+
+> **rendered**(): `void`
+
+Called when `std.render` is called.
+
+#### Returns
+
+`void`
+
+#### Inherited from
+
+[`LifeCycleWatcher`](LifeCycleWatcher.md).[`rendered`](LifeCycleWatcher.md#rendered)
+
+***
+
+### unmounted()
+
+> **unmounted**(): `void`
+
+Called when editor host is unmounted.
+Which means the editor host emit the `disconnectedCallback` lifecycle event.
+
+#### Returns
+
+`void`
+
+#### Inherited from
+
+[`LifeCycleWatcher`](LifeCycleWatcher.md).[`unmounted`](LifeCycleWatcher.md#unmounted)

blocksuite/docs/api/@blocksuite/std/index/classes/LifeCycleWatcher.md

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+[**BlockSuite API Documentation**](../../../../README.md)
+
+***
+
+[BlockSuite API Documentation](../../../../README.md) / [@blocksuite/std](../../README.md) / [index](../README.md) / LifeCycleWatcher
+
+# Abstract Class: LifeCycleWatcher
+
+A life cycle watcher is an extension that watches the life cycle of the editor.
+It is used to perform actions when the editor is created, mounted, rendered, or unmounted.
+
+When creating a life cycle watcher, you must define a key that is unique to the watcher.
+The key is used to identify the watcher in the dependency injection container.
+```ts
+class MyLifeCycleWatcher extends LifeCycleWatcher {
+ static override readonly key = 'my-life-cycle-watcher';
+```
+
+In the life cycle watcher, the methods will be called in the following order:
+1. `created`: Called when the std is created.
+2. `rendered`: Called when `std.render` is called.
+3. `mounted`: Called when the editor host is mounted.
+4. `unmounted`: Called when the editor host is unmounted.
+
+## Extends
+
+- [`Extension`](../../../store/classes/Extension.md)
+
+## Extended by
+
+- [`CommandManager`](CommandManager.md)
+
+## Methods
+
+### created()
+
+> **created**(): `void`
+
+Called when std is created.
+
+#### Returns
+
+`void`
+
+***
+
+### mounted()
+
+> **mounted**(): `void`
+
+Called when editor host is mounted.
+Which means the editor host emit the `connectedCallback` lifecycle event.
+
+#### Returns
+
+`void`
+
+***
+
+### rendered()
+
+> **rendered**(): `void`
+
+Called when `std.render` is called.
+
+#### Returns
+
+`void`
+
+***
+
+### unmounted()
+
+> **unmounted**(): `void`
+
+Called when editor host is unmounted.
+Which means the editor host emit the `disconnectedCallback` lifecycle event.
+
+#### Returns
+
+`void`