BlockSuite API Documentation / @blocksuite/block-std / LifeCycleWatcher

Class: abstract 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.

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

Extended by

• Clipboard
• CommandManager
• UIEventDispatcher
• BlockServiceWatcher
• RangeManager
• SelectionManager
• ServiceManager
• ViewStore

Constructors

new LifeCycleWatcher()

new LifeCycleWatcher(std): LifeCycleWatcher

Parameters

• std: BlockStdScope

Returns

LifeCycleWatcher

Overrides

Extension.constructor

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:30

Properties

std

readonly std: BlockStdScope

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:30

---

key

static key: string

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:28

Methods

created()

created(): void

Called when std is created.

Returns

void

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:54

---

mounted()

mounted(): void

Called when editor host is mounted. Which means the editor host emit the connectedCallback lifecycle event.

Returns

void

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:60

---

rendered()

rendered(): void

Called when std.render is called.

Returns

void

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:65

---

unmounted()

unmounted(): void

Called when editor host is unmounted. Which means the editor host emit the disconnectedCallback lifecycle event.

Returns

void

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:71

---

setup()

static setup(di): void

Parameters

• di: Container

Returns

void

Overrides

Extension.setup

Defined in

packages/framework/block-std/src/extension/lifecycle-watcher.ts:34