feat: Add Avatar component

packages/examples/packages/browserify-plugin/snap.manifest.json

@@ -7,7 +7,7 @@
     "url": "https://github.com/MetaMask/snaps.git"
   },
   "source": {
-    "shasum": "4a1znWfS1zEU7F+KvELAq39Q31sOaFMrxy40yNz4B0s=",
+    "shasum": "HEAbfXBUqw5fNP+sJVyvUpXucZy6CwiCFXJi36CEfUw=",
     "location": {
       "npm": {
         "filePath": "dist/bundle.js",

packages/examples/packages/browserify/snap.manifest.json

@@ -7,7 +7,7 @@
     "url": "https://github.com/MetaMask/snaps.git"
   },
   "source": {
-    "shasum": "t0meIgWvqOjHA02oXh9UmcfDmGoiklTgVud+eqyKbRE=",
+    "shasum": "mCoDlMSdhDJAXd9zT74ST7jHysifHdQ8r0++b8uPbOs=",
     "location": {
       "npm": {
         "filePath": "dist/bundle.js",

packages/snaps-sdk/src/jsx/components/Avatar.test.tsx

@@ -0,0 +1,35 @@
+import { Avatar } from './Avatar';
+
+describe('Avatar', () => {
+  it('renders an avatar', () => {
+    const result = (
+      <Avatar address="eip155:1:0x1234567890123456789012345678901234567890" />
+    );
+
+    expect(result).toStrictEqual({
+      type: 'Avatar',
+      key: null,
+      props: {
+        address: 'eip155:1:0x1234567890123456789012345678901234567890',
+      },
+    });
+  });
+
+  it('renders an avatar of a certain size', () => {
+    const result = (
+      <Avatar
+        address="eip155:1:0x1234567890123456789012345678901234567890"
+        size="lg"
+      />
+    );
+
+    expect(result).toStrictEqual({
+      type: 'Avatar',
+      key: null,
+      props: {
+        address: 'eip155:1:0x1234567890123456789012345678901234567890',
+        size: 'lg',
+      },
+    });
+  });
+});

packages/snaps-sdk/src/jsx/components/Avatar.ts

@@ -0,0 +1,37 @@
+import type { CaipAccountId } from '@metamask/utils';
+
+import { createSnapComponent } from '../component';
+
+/**
+ * The props of the {@link Avatar} component.
+ *
+ * @property address - The address to display. This should be a valid CAIP-10 address.
+ */
+export type AvatarProps = {
+  address: CaipAccountId;
+  size?: 'sm' | 'md' | 'lg' | undefined;
+};
+
+const TYPE = 'Avatar';
+
+/**
+ * An avatar component, which is used to display an avatar for a CAIP-10 address.
+ *
+ * This component does not accept any children.
+ *
+ * @param props - The props of the component.
+ * @param props.address - The address to display. This should be a valid CAIP-10 address.
+ * @returns An avatar element.
+ * @example
+ * <Avatar address="eip155:1:0x1234567890123456789012345678901234567890" />
+ * @example
+ * <Avatar address="bip122:000000000019d6689c085ae165831e93:128Lkh3S7CkDTBZ8W7BbpsN3YYizJMp8p6" />
+ */
+export const Avatar = createSnapComponent<AvatarProps, typeof TYPE>(TYPE);
+
+/**
+ * An avatar element.
+ *
+ * @see Avatar
+ */
+export type AvatarElement = ReturnType<typeof Avatar>;

packages/snaps-sdk/src/jsx/components/index.ts

@@ -1,4 +1,5 @@
 import type { AddressElement } from './Address';
+import type { AvatarElement } from './Avatar';
 import type { BoxElement } from './Box';
 import type { CardElement } from './Card';
 import type { ContainerElement } from './Container';
@@ -21,6 +22,7 @@ import type { ValueElement } from './Value';
 export * from './form';
 export * from './formatting';
 export * from './Address';
+export * from './Avatar';
 export * from './Box';
 export * from './Card';
 export * from './Copyable';
@@ -44,6 +46,7 @@ export * from './Section';
 export type JSXElement =
   | StandardFormElement
   | StandardFormattingElement
+  | AvatarElement
   | AddressElement
   | BoxElement
   | CardElement

packages/snaps-sdk/src/jsx/validation.test.tsx

@@ -32,6 +32,7 @@ import {
   Selector,
   SelectorOption,
   Section,
+  Avatar,
 } from './components';
 import {
   AddressStruct,
@@ -69,6 +70,7 @@ import {
   SelectorStruct,
   SectionStruct,
   NotificationComponentsStruct,
+  AvatarStruct,
 } from './validation';
 
 describe('KeyStruct', () => {
@@ -432,6 +434,54 @@ describe('ItalicStruct', () => {
   });
 });
 
+describe('AvatarStruct', () => {
+  it.each([
+    <Avatar address="eip155:1:0x1234567890abcdef1234567890abcdef12345678" />,
+    <Avatar address="bip122:000000000019d6689c085ae165831e93:128Lkh3S7CkDTBZ8W7BbpsN3YYizJMp8p6" />,
+    <Avatar address="cosmos:cosmoshub-3:cosmos1t2uflqwqe0fsj0shcfkrvpukewcw40yjj6hdc0" />,
+    <Avatar
+      address="eip155:1:0x1234567890abcdef1234567890abcdef12345678"
+      size="lg"
+    />,
+  ])('validates an avatar element', (value) => {
+    expect(is(value, AvatarStruct)).toBe(true);
+  });
+
+  it.each([
+    'foo',
+    42,
+    null,
+    undefined,
+    {},
+    [],
+    // @ts-expect-error - Invalid props.
+    <Avatar />,
+    // @ts-expect-error - Invalid props.
+    <Avatar>
+      <Text>foo</Text>
+    </Avatar>,
+    // @ts-expect-error - Invalid props.
+    <Avatar address="0x1234567890abcdef1234567890abcdef12345678" />,
+    // @ts-expect-error - Invalid props.
+    <Avatar address="0x1234" />,
+    // @ts-expect-error - Invalid props.
+    <Avatar
+      address="eip155:1:0x1234567890abcdef1234567890abcdef12345678"
+      size="foo"
+    />,
+    <Avatar address="a:b:0x1234" />,
+    <Text>foo</Text>,
+    <Box>
+      <Text>foo</Text>
+    </Box>,
+    <Row label="label">
+      <Image src="<svg />" alt="alt" />
+    </Row>,
+  ])('does not validate "%p"', (value) => {
+    expect(is(value, AvatarStruct)).toBe(false);
+  });
+});
+
 describe('AddressStruct', () => {
   it.each([
     <Address address="0x1234567890abcdef1234567890abcdef12345678" />,

packages/snaps-sdk/src/jsx/validation.ts

@@ -46,6 +46,7 @@ import type {
   SnapsChildren,
   StringElement,
 } from './component';
+import type { AvatarElement } from './components';
 import {
   type AddressElement,
   type BoldElement,
@@ -473,6 +474,14 @@ export const AddressStruct: Describe<AddressElement> = element('Address', {
   address: nullUnion([HexChecksumAddressStruct, CaipAccountIdStruct]),
 });
 
+/**
+ * A struct for the {@link AvatarElement} type.
+ */
+export const AvatarStruct = element('Avatar', {
+  address: CaipAccountIdStruct,
+  size: optional(nullUnion([literal('sm'), literal('md'), literal('lg')])),
+}) as unknown as Struct<AvatarElement, null>;
+
 export const BoxChildrenStruct = children(
   // eslint-disable-next-line @typescript-eslint/no-use-before-define
   [lazy(() => BoxChildStruct)],
@@ -745,6 +754,7 @@ export const BoxChildStruct = typedUnion([
   IconStruct,
   SelectorStruct,
   SectionStruct,
+  AvatarStruct,
 ]);
 
 export const NotificationComponentsStruct = typedUnion([
@@ -824,6 +834,7 @@ export const JSXElementStruct: Describe<JSXElement> = typedUnion([
   SelectorStruct,
   SelectorOptionStruct,
   SectionStruct,
+  AvatarStruct,
 ]);
 
 /**