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fix(material/form-field): allow ng-container to be used as text prefix/suffix #26127

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Merged
mmalerba merged 2 commits into from
Nov 30, 2022
Merged

fix(material/form-field): allow ng-container to be used as text prefix/suffix #26127

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02ade8c
fix(material/form-field): allow ng-container to be used as text prefi…
mmalerba Nov 29, 2022
426feae
fixup! fix(material/form-field): allow ng-container to be used as tex…
mmalerba Nov 29, 2022
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11 changes: 6 additions & 5 deletions src/material/form-field/directives/prefix.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/

import {Directive, ElementRef, InjectionToken} from '@angular/core';
import {Directive, InjectionToken, Input} from '@angular/core';

/**
* Injection token that can be used to reference instances of `MatPrefix`. It serves as
Expand All @@ -21,9 +21,10 @@ export const MAT_PREFIX = new InjectionToken<MatPrefix>('MatPrefix');
providers: [{provide: MAT_PREFIX, useExisting: MatPrefix}],
})
export class MatPrefix {
_isText = false;

constructor(elementRef: ElementRef) {
this._isText = elementRef.nativeElement.hasAttribute('matTextPrefix');
@Input('matTextPrefix')
set _isTextSelector(value: '') {
this._isText = true;
}

_isText = false;
}
11 changes: 6 additions & 5 deletions src/material/form-field/directives/suffix.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/

import {Directive, ElementRef, InjectionToken} from '@angular/core';
import {Directive, InjectionToken, Input} from '@angular/core';

/**
* Injection token that can be used to reference instances of `MatSuffix`. It serves as
Expand All @@ -21,9 +21,10 @@ export const MAT_SUFFIX = new InjectionToken<MatSuffix>('MatSuffix');
providers: [{provide: MAT_SUFFIX, useExisting: MatSuffix}],
})
export class MatSuffix {
_isText = false;

constructor(elementRef: ElementRef) {
this._isText = elementRef.nativeElement.hasAttribute('matTextSuffix');
@Input('matTextSuffix')
set _isTextSelector(value: '') {
this._isText = true;
}

_isText = false;
}
28 changes: 28 additions & 0 deletions src/material/input/input.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -784,6 +784,21 @@ describe('MatMdcInput without forms', () => {
expect(iconSuffixEl.nativeElement.innerText.trim()).toEqual('favorite');
}));

it('should allow ng-container as prefix and suffix', () => {
const fixture = createComponent(InputWithNgContainerPrefixAndSuffix);
fixture.detectChanges();

const textPrefixEl = fixture.debugElement.query(By.css('.mat-mdc-form-field-text-prefix'))!;
const textSuffixEl = fixture.debugElement.query(By.css('.mat-mdc-form-field-text-suffix'))!;
const iconPrefixEl = fixture.debugElement.query(By.css('.mat-mdc-form-field-icon-prefix'))!;
const iconSuffixEl = fixture.debugElement.query(By.css('.mat-mdc-form-field-icon-suffix'))!;

expect(textPrefixEl.nativeElement.innerText.trim()).toEqual('text-prefix');
expect(textSuffixEl.nativeElement.innerText.trim()).toEqual('text-suffix');
expect(iconPrefixEl.nativeElement.innerText.trim()).toEqual('icon-prefix');
expect(iconSuffixEl.nativeElement.innerText.trim()).toEqual('icon-suffix');
});

it('should update empty class when value changes programmatically and OnPush', fakeAsync(() => {
let fixture = createComponent(MatInputOnPush);
fixture.detectChanges();
Expand Down Expand Up @@ -2064,3 +2079,16 @@ class MatInputWithRequiredFormControl {
`,
})
class MatInputSimple {}

@Component({
template: `
<mat-form-field>
<ng-container matIconPrefix>icon-prefix</ng-container>
<ng-container matTextPrefix>text-prefix</ng-container>
<input matInput>
<ng-container matTextSuffix>text-suffix</ng-container>
<ng-container matIconSuffix>icon-suffix</ng-container>
</mat-form-field>
`,
})
class InputWithNgContainerPrefixAndSuffix {}
10 changes: 6 additions & 4 deletions tools/public_api_guard/material/form-field.md
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Expand Up @@ -223,22 +223,24 @@ export class MatLabel {

// @public
export class MatPrefix {
constructor(elementRef: ElementRef);
// (undocumented)
_isText: boolean;
// (undocumented)
static ɵdir: i0.ɵɵDirectiveDeclaration<MatPrefix, "[matPrefix], [matIconPrefix], [matTextPrefix]", never, {}, {}, never, never, false, never>;
set _isTextSelector(value: '');
// (undocumented)
static ɵdir: i0.ɵɵDirectiveDeclaration<MatPrefix, "[matPrefix], [matIconPrefix], [matTextPrefix]", never, { "_isTextSelector": "matTextPrefix"; }, {}, never, never, false, never>;
// (undocumented)
static ɵfac: i0.ɵɵFactoryDeclaration<MatPrefix, never>;
}

// @public
export class MatSuffix {
constructor(elementRef: ElementRef);
// (undocumented)
_isText: boolean;
// (undocumented)
static ɵdir: i0.ɵɵDirectiveDeclaration<MatSuffix, "[matSuffix], [matIconSuffix], [matTextSuffix]", never, {}, {}, never, never, false, never>;
set _isTextSelector(value: '');
// (undocumented)
static ɵdir: i0.ɵɵDirectiveDeclaration<MatSuffix, "[matSuffix], [matIconSuffix], [matTextSuffix]", never, { "_isTextSelector": "matTextSuffix"; }, {}, never, never, false, never>;
// (undocumented)
static ɵfac: i0.ɵɵFactoryDeclaration<MatSuffix, never>;
}
Expand Down