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fix(runtime): dynamic slot name change (#5304)
* fix for shadow components Fixes an issue where a slot's `name` attribute would not update correctly if it was bound to a `@Prop()` (for Shadow DOM components) STENCIL-295 * fix for scoped components Fixes an issue where a slot's `name` attribute would not update correctly if it was bound to a `@Prop()` (for non-Shadow DOM components) STENCIL-295 * add e2e tests * little comment on change * put scoped changes behind slot fix flag
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17 changes: 17 additions & 0 deletions
17
test/karma/test-app/slot-dynamic-name-change/cmp-scoped.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| import { Component, h, Prop } from '@stencil/core'; | ||
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| @Component({ | ||
| tag: 'slot-dynamic-name-change-scoped', | ||
| scoped: true, | ||
| }) | ||
| export class SlotDynamicNameChangeScoped { | ||
| @Prop() slotName = 'greeting'; | ||
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| render() { | ||
| return ( | ||
| <div> | ||
| <slot name={this.slotName}></slot> | ||
| </div> | ||
| ); | ||
| } | ||
| } |
17 changes: 17 additions & 0 deletions
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test/karma/test-app/slot-dynamic-name-change/cmp-shadow.tsx
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,17 @@ | ||
| import { Component, h, Prop } from '@stencil/core'; | ||
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| @Component({ | ||
| tag: 'slot-dynamic-name-change-shadow', | ||
| shadow: true, | ||
| }) | ||
| export class SlotDynamicNameChangeShadow { | ||
| @Prop() slotName = 'greeting'; | ||
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| render() { | ||
| return ( | ||
| <div> | ||
| <slot name={this.slotName}></slot> | ||
| </div> | ||
| ); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| <!doctype html> | ||
| <meta charset="utf8" /> | ||
| <script src="./build/testapp.esm.js" type="module"></script> | ||
| <script src="./build/testapp.js" nomodule></script> | ||
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| <slot-dynamic-name-change-shadow> | ||
| <p slot="greeting">Hello</p> | ||
| <p slot="farewell">Goodbye</p> | ||
| </slot-dynamic-name-change-shadow> | ||
| <slot-dynamic-name-change-scoped> | ||
| <p slot="greeting">Hello</p> | ||
| <p slot="farewell">Goodbye</p> | ||
| </slot-dynamic-name-change-scoped> | ||
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| <button>Toggle slot name</button> | ||
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| <script> | ||
| document.querySelector('button').addEventListener('click', () => { | ||
| document.querySelector('slot-dynamic-name-change-shadow').setAttribute('slot-name', 'farewell'); | ||
| document.querySelector('slot-dynamic-name-change-scoped').setAttribute('slot-name', 'farewell'); | ||
| }); | ||
| </script> |
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test/karma/test-app/slot-dynamic-name-change/karma.spec.ts
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| import { setupDomTests, waitForChanges } from '../util'; | ||
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| /** | ||
| * Tests the case where a `slot` element in a component has its | ||
| * `name` attribute changed dynamically via a property. | ||
| */ | ||
| describe('slot dynamic name change', () => { | ||
| const { setupDom, tearDownDom } = setupDomTests(document); | ||
| let app: HTMLElement; | ||
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| beforeEach(async () => { | ||
| app = await setupDom('/slot-dynamic-name-change/index.html'); | ||
| }); | ||
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| afterEach(tearDownDom); | ||
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| it('should change the slot name for a shadow component', async () => { | ||
| const cmp = app.querySelector('slot-dynamic-name-change-shadow'); | ||
| expect(cmp.innerText).toBe('Hello'); | ||
| expect(cmp.shadowRoot.querySelector('slot').getAttribute('name')).toBe('greeting'); | ||
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| app.querySelector('button').click(); | ||
| await waitForChanges(); | ||
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| expect(cmp.innerText).toBe('Goodbye'); | ||
| expect(cmp.shadowRoot.querySelector('slot').getAttribute('name')).toBe('farewell'); | ||
| }); | ||
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| it('should change the slot name for a scoped component', async () => { | ||
| const cmp = app.querySelector('slot-dynamic-name-change-scoped'); | ||
| expect(cmp.innerText).toBe('Hello'); | ||
| expect(cmp.querySelector('p:not([hidden])').getAttribute('slot')).toBe('greeting'); | ||
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| app.querySelector('button').click(); | ||
| await waitForChanges(); | ||
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| expect(cmp.innerText).toBe('Goodbye'); | ||
| expect(cmp.querySelector('p:not([hidden])').getAttribute('slot')).toBe('farewell'); | ||
| }); | ||
| }); |