@angular/material
Version:
Angular Material
153 lines • 16.8 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { Directive, Input, Optional, ElementRef, } from '@angular/core';
import { MatDialog } from './dialog';
import { _closeDialogVia, MatDialogRef } from './dialog-ref';
/** Counter used to generate unique IDs for dialog elements. */
let dialogElementUid = 0;
/**
* Button that will close the current dialog.
*/
export class MatDialogClose {
constructor(
// The dialog title directive is always used in combination with a `MatDialogRef`.
// tslint:disable-next-line: lightweight-tokens
dialogRef, _elementRef, _dialog) {
this.dialogRef = dialogRef;
this._elementRef = _elementRef;
this._dialog = _dialog;
/** Default to "button" to prevents accidental form submits. */
this.type = 'button';
}
ngOnInit() {
if (!this.dialogRef) {
// When this directive is included in a dialog via TemplateRef (rather than being
// in a Component), the DialogRef isn't available via injection because embedded
// views cannot be given a custom injector. Instead, we look up the DialogRef by
// ID. This must occur in `onInit`, as the ID binding for the dialog container won't
// be resolved at constructor time.
this.dialogRef = getClosestDialog(this._elementRef, this._dialog.openDialogs);
}
}
ngOnChanges(changes) {
const proxiedChange = changes['_matDialogClose'] || changes['_matDialogCloseResult'];
if (proxiedChange) {
this.dialogResult = proxiedChange.currentValue;
}
}
_onButtonClick(event) {
// Determinate the focus origin using the click event, because using the FocusMonitor will
// result in incorrect origins. Most of the time, close buttons will be auto focused in the
// dialog, and therefore clicking the button won't result in a focus change. This means that
// the FocusMonitor won't detect any origin change, and will always output `program`.
_closeDialogVia(this.dialogRef, event.screenX === 0 && event.screenY === 0 ? 'keyboard' : 'mouse', this.dialogResult);
}
}
MatDialogClose.decorators = [
{ type: Directive, args: [{
selector: '[mat-dialog-close], [matDialogClose]',
exportAs: 'matDialogClose',
host: {
'(click)': '_onButtonClick($event)',
'[attr.aria-label]': 'ariaLabel || null',
'[attr.type]': 'type',
}
},] }
];
MatDialogClose.ctorParameters = () => [
{ type: MatDialogRef, decorators: [{ type: Optional }] },
{ type: ElementRef },
{ type: MatDialog }
];
MatDialogClose.propDecorators = {
ariaLabel: [{ type: Input, args: ['aria-label',] }],
type: [{ type: Input }],
dialogResult: [{ type: Input, args: ['mat-dialog-close',] }],
_matDialogClose: [{ type: Input, args: ['matDialogClose',] }]
};
/**
* Title of a dialog element. Stays fixed to the top of the dialog when scrolling.
*/
export class MatDialogTitle {
constructor(
// The dialog title directive is always used in combination with a `MatDialogRef`.
// tslint:disable-next-line: lightweight-tokens
_dialogRef, _elementRef, _dialog) {
this._dialogRef = _dialogRef;
this._elementRef = _elementRef;
this._dialog = _dialog;
this.id = `mat-dialog-title-${dialogElementUid++}`;
}
ngOnInit() {
if (!this._dialogRef) {
this._dialogRef = getClosestDialog(this._elementRef, this._dialog.openDialogs);
}
if (this._dialogRef) {
Promise.resolve().then(() => {
const container = this._dialogRef._containerInstance;
if (container && !container._ariaLabelledBy) {
container._ariaLabelledBy = this.id;
}
});
}
}
}
MatDialogTitle.decorators = [
{ type: Directive, args: [{
selector: '[mat-dialog-title], [matDialogTitle]',
exportAs: 'matDialogTitle',
host: {
'class': 'mat-dialog-title',
'[id]': 'id',
},
},] }
];
MatDialogTitle.ctorParameters = () => [
{ type: MatDialogRef, decorators: [{ type: Optional }] },
{ type: ElementRef },
{ type: MatDialog }
];
MatDialogTitle.propDecorators = {
id: [{ type: Input }]
};
/**
* Scrollable content container of a dialog.
*/
export class MatDialogContent {
}
MatDialogContent.decorators = [
{ type: Directive, args: [{
selector: `[mat-dialog-content], mat-dialog-content, [matDialogContent]`,
host: { 'class': 'mat-dialog-content' }
},] }
];
/**
* Container for the bottom action buttons in a dialog.
* Stays fixed to the bottom when scrolling.
*/
export class MatDialogActions {
}
MatDialogActions.decorators = [
{ type: Directive, args: [{
selector: `[mat-dialog-actions], mat-dialog-actions, [matDialogActions]`,
host: { 'class': 'mat-dialog-actions' }
},] }
];
/**
* Finds the closest MatDialogRef to an element by looking at the DOM.
* @param element Element relative to which to look for a dialog.
* @param openDialogs References to the currently-open dialogs.
*/
function getClosestDialog(element, openDialogs) {
let parent = element.nativeElement.parentElement;
while (parent && !parent.classList.contains('mat-dialog-container')) {
parent = parent.parentElement;
}
return parent ? openDialogs.find(dialog => dialog.id === parent.id) : null;
}
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Instead, we look up the DialogRef by\n      // ID. This must occur in `onInit`, as the ID binding for the dialog container won't\n      // be resolved at constructor time.\n      this.dialogRef = getClosestDialog(this._elementRef, this._dialog.openDialogs)!;\n    }\n  }\n\n  ngOnChanges(changes: SimpleChanges) {\n    const proxiedChange = changes['_matDialogClose'] || changes['_matDialogCloseResult'];\n\n    if (proxiedChange) {\n      this.dialogResult = proxiedChange.currentValue;\n    }\n  }\n\n  _onButtonClick(event: MouseEvent) {\n    // Determinate the focus origin using the click event, because using the FocusMonitor will\n    // result in incorrect origins. Most of the time, close buttons will be auto focused in the\n    // dialog, and therefore clicking the button won't result in a focus change. This means that\n    // the FocusMonitor won't detect any origin change, and will always output `program`.\n    _closeDialogVia(this.dialogRef,\n        event.screenX === 0 && event.screenY === 0 ? 'keyboard' : 'mouse', this.dialogResult);\n  }\n}\n\n/**\n * Title of a dialog element. Stays fixed to the top of the dialog when scrolling.\n */\n@Directive({\n  selector: '[mat-dialog-title], [matDialogTitle]',\n  exportAs: 'matDialogTitle',\n  host: {\n    'class': 'mat-dialog-title',\n    '[id]': 'id',\n  },\n})\nexport class MatDialogTitle implements OnInit {\n  @Input() id: string = `mat-dialog-title-${dialogElementUid++}`;\n\n  constructor(\n      // The dialog title directive is always used in combination with a `MatDialogRef`.\n      // tslint:disable-next-line: lightweight-tokens\n      @Optional() private _dialogRef: MatDialogRef<any>,\n      private _elementRef: ElementRef<HTMLElement>,\n      private _dialog: MatDialog) {}\n\n  ngOnInit() {\n    if (!this._dialogRef) {\n      this._dialogRef = getClosestDialog(this._elementRef, this._dialog.openDialogs)!;\n    }\n\n    if (this._dialogRef) {\n      Promise.resolve().then(() => {\n        const container = this._dialogRef._containerInstance;\n\n        if (container && !container._ariaLabelledBy) {\n          container._ariaLabelledBy = this.id;\n        }\n      });\n    }\n  }\n}\n\n\n/**\n * Scrollable content container of a dialog.\n */\n@Directive({\n  selector: `[mat-dialog-content], mat-dialog-content, [matDialogContent]`,\n  host: {'class': 'mat-dialog-content'}\n})\nexport class MatDialogContent {}\n\n\n/**\n * Container for the bottom action buttons in a dialog.\n * Stays fixed to the bottom when scrolling.\n */\n@Directive({\n  selector: `[mat-dialog-actions], mat-dialog-actions, [matDialogActions]`,\n  host: {'class': 'mat-dialog-actions'}\n})\nexport class MatDialogActions {}\n\n\n/**\n * Finds the closest MatDialogRef to an element by looking at the DOM.\n * @param element Element relative to which to look for a dialog.\n * @param openDialogs References to the currently-open dialogs.\n */\nfunction getClosestDialog(element: ElementRef<HTMLElement>, openDialogs: MatDialogRef<any>[]) {\n  let parent: HTMLElement | null = element.nativeElement.parentElement;\n\n  while (parent && !parent.classList.contains('mat-dialog-container')) {\n    parent = parent.parentElement;\n  }\n\n  return parent ? openDialogs.find(dialog => dialog.id === parent!.id) : null;\n}\n"]}