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* Copyright bei
* Entwicklungs- und Pflegeverbund für das gemeinsame Fachverfahren gefa
*
*******************************************************************************/
import {
Component,
ElementRef,
HostBinding,
Input,
ViewChild,
} from '@angular/core';
import { LinkEvent } from '../utils/event.types';
import {
Consumer,
FocusableElementOwner,
WidgetKeySet,
} from '../utils/util.types';
import { createWidgetKeySet } from '../utils/utilities';
/**
* `gc-link` allows the user to visit a specified location.
*/
@Component({
selector: 'gc-link',
templateUrl: './link.component.html',
styleUrls: ['./link.component.css'],
})
export class LinkComponent implements FocusableElementOwner {
/**
* URL that the user will be sent to on click.
*/
@Input()
public link?: string;
/**
* Toggles the disabled state of the link
*/
@Input()
@HostBinding('class.gc-disabled')
public disabled = false;
/**
* Text that is shown as the link
*/
@Input()
public text = '';
/**
* Define how the content is displayed
* - icon: icon is shown on the right of the text
* - text-only: only text is displayed
*/
@Input()
public contentDisplay: 'text-only' | 'icon' = 'text-only';
/**
* Optional handler to customize handling of navigation requests
*/
@Input()
public linkHandler?: Consumer<LinkEvent>;
/**
* Opens the link in a new browser tab
*/
@Input()
public openInNewTab = false;
/**
* Optional text that is shown above the link.
*/
@Input()
public description?: string;
/**
* Decides if an arrow icon will be rendered, and the link will be opened in new tab or not.
*/
@Input()
public defaultOpenInNewTab = false;
/**
* @ignore
*/
@ViewChild('linkElement')
private linkElement?: ElementRef<HTMLAnchorElement>;
/** @ignore */
private readonly widgetKeySet: WidgetKeySet = createWidgetKeySet('gc-link');
/**
* @ignore
*/
private externalDescriptionId?: string;
/**
* @ignore
*/
private linkDescriptionIdContainerId?: string;
public focusChild(): boolean {
if (!this.disabled && this.linkElement) {
this.linkElement.nativeElement.focus();
return true;
} else {
return false;
}
}
/**
* @ignore
*/
protected _getExternalDescriptionId() {
if (this.externalDescriptionId === undefined) {
this.externalDescriptionId = this.widgetKeySet.baseKey + '-description';
}
return this.externalDescriptionId;
}
/**
* @ignore
*/
protected _getOptionalDescriptionContainerId() {
if (this.linkDescriptionIdContainerId === undefined) {
this.linkDescriptionIdContainerId =
this.widgetKeySet.baseKey + '-optional-description';
}
return this.linkDescriptionIdContainerId;
}
/**
* @ignore
*/
protected _handleClick() {
return this._internalHandleClick(true);
}
/**
* @ignore
*/
protected _handleAuxClick(event: MouseEvent) {
if (event.button === 1) {
return this._internalHandleClick(false);
}
return true;
}
/** @ignore */
private _internalHandleClick(replace: boolean): boolean {
if (this.disabled) {
return false;
}
if (this.linkHandler && this.link) {
try {
this.linkHandler({
linkInfo: this.link,
replace: this.openInNewTab ? false : replace,
});
} catch (e) {
console.error('Failed to execute link handler', e);
}
return false;
}
return true;
}
}
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