@ux-aspects/ux-aspects
Version:
Open source user interface framework for building modern, responsive, mobile big data applications
126 lines • 17.9 kB
JavaScript
import { ESCAPE } from '@angular/cdk/keycodes';
import { ComponentPortal } from '@angular/cdk/portal';
import { Directive, HostBinding, Input } from '@angular/core';
import { fromEvent } from 'rxjs';
import { takeUntil } from 'rxjs/operators';
import { TooltipDirective } from '../tooltip/index';
import { PopoverComponent } from './popover.component';
import * as i0 from "@angular/core";
export class PopoverDirective extends TooltipDirective {
constructor() {
super();
/** All the user to add a custom class to the popover */
this.customClass = '';
/** All the user to add a role to the popover - default is tooltip */
this.role = 'tooltip';
/** Provide the TemplateRef a context object */
this.context = {};
/** Delay the showing of the popover by a number of miliseconds */
this.delay = 0;
/** Specify which events should show the popover */
this.showTriggers = ['click'];
/** Specify which events should hide the popover */
this.hideTriggers = ['click', 'clickoutside', 'escape'];
/** Keep track of the tooltip visibility and update aria-expanded attribute */
this.isVisible = false;
/** Define the overlay class */
this._overlayClass = 'ux-overlay-pane';
/** Internally store the type of this component - usual for distinctions when extending the tooltip class */
this._type = 'popover';
}
/** Set up the triggers and bind to the show/hide events to keep visibility in sync */
ngOnInit() {
// set up the event triggers
fromEvent(document, 'keydown').pipe(takeUntil(this._onDestroy)).subscribe(this.onKeyDown.bind(this));
// check if there is an aria-described by attribute
this._ariaDescribedBy = this._elementRef.nativeElement.hasAttribute('aria-describedby');
// set up the default event triggers
super.ngOnInit();
}
/**
* We need to send input changes to the popover component
* We can't use setters as they may trigger before popover initialised and can't resend once initialised
**/
ngOnChanges(changes) {
super.ngOnChanges(changes);
if (this._instance && changes.title) {
this._instance.setTitle(changes.title.currentValue);
}
}
createInstance(overlayRef) {
const instance = overlayRef.attach(this._portal).instance;
// supply the tooltip with the correct properties
instance.setTitle(this.title);
instance.setContent(this.content);
instance.setPlacement(this.placement);
instance.setAlignment(this.alignment);
instance.setClass(this.customClass);
instance.setContext(this.context);
instance.setRole(this.role);
// Update the aria-describedby attribute
this.setAriaDescribedBy(instance.id);
// subscribe to the outside click event
instance.clickOutside$.pipe(takeUntil(this._onDestroy)).subscribe(this.onClickOutside.bind(this));
return instance;
}
createPortal() {
return this._portal || new ComponentPortal(PopoverComponent, this._viewContainerRef);
}
onKeyDown(event) {
// if visible and the escape key is pressed and it is one of the hide triggers
if (this.isVisible && event.keyCode === ESCAPE && this.includes(this.hideTriggers, 'escape')) {
this.hide();
}
}
onClickOutside() {
// if visible and it is one of the hide triggers
if (this.isVisible && this.includes(this.hideTriggers, 'clickoutside')) {
this.hide();
}
}
/** Programmatically update the aria-describedby property */
setAriaDescribedBy(id) {
// we only want to set the aria-describedby attr when the content is a string and there was no user defined attribute already
if (this._ariaDescribedBy === false && typeof this.content === 'string') {
super.setAriaDescribedBy(id);
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: PopoverDirective, deps: [], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "18.2.12", type: PopoverDirective, selector: "[uxPopover]", inputs: { content: ["uxPopover", "content"], title: ["popoverTitle", "title"], disabled: ["popoverDisabled", "disabled"], customClass: ["popoverClass", "customClass"], role: ["popoverRole", "role"], context: ["popoverContext", "context"], delay: ["popoverDelay", "delay"], showTriggers: "showTriggers", hideTriggers: "hideTriggers" }, host: { properties: { "attr.aria-expanded": "this.isVisible" } }, exportAs: ["ux-popover"], usesInheritance: true, usesOnChanges: true, ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.12", ngImport: i0, type: PopoverDirective, decorators: [{
type: Directive,
args: [{
selector: '[uxPopover]',
exportAs: 'ux-popover'
}]
}], ctorParameters: () => [], propDecorators: { content: [{
type: Input,
args: ['uxPopover']
}], title: [{
type: Input,
args: ['popoverTitle']
}], disabled: [{
type: Input,
args: ['popoverDisabled']
}], customClass: [{
type: Input,
args: ['popoverClass']
}], role: [{
type: Input,
args: ['popoverRole']
}], context: [{
type: Input,
args: ['popoverContext']
}], delay: [{
type: Input,
args: ['popoverDelay']
}], showTriggers: [{
type: Input
}], hideTriggers: [{
type: Input
}], isVisible: [{
type: HostBinding,
args: ['attr.aria-expanded']
}] } });
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default is tooltip */\n    @Input('popoverRole') role: string = 'tooltip';\n\n    /** Provide the TemplateRef a context object */\n     \n    @Input('popoverContext') context: any = {};\n\n    /** Delay the showing of the popover by a number of miliseconds */\n    @Input('popoverDelay') delay: number = 0;\n\n    /** Specify which events should show the popover */\n    @Input() showTriggers: OverlayTrigger[] = ['click'];\n\n    /** Specify which events should hide the popover */\n    @Input() hideTriggers: OverlayTrigger[] = ['click', 'clickoutside', 'escape'];\n\n    /** Keep track of the tooltip visibility and update aria-expanded attribute */\n    @HostBinding('attr.aria-expanded') isVisible: boolean = false;\n\n    /** Define the overlay class */\n    protected _overlayClass: string = 'ux-overlay-pane';\n\n    /** A reference to the CDK portal containing the overlay */\n    protected _portal: ComponentPortal<PopoverComponent>;\n\n    /** A reference to the instance of the popover component when created */\n    protected _instance: PopoverComponent;\n\n    /** Determine whether or not an aria-describedby property originally existed on the element */\n    private _ariaDescribedBy: boolean;\n\n    /** Internally store the type of this component - usual for distinctions when extending the tooltip class */\n    protected _type: string = 'popover';\n\n    constructor() {\n        super();\n    }\n\n    /** Set up the triggers and bind to the show/hide events to keep visibility in sync */\n    ngOnInit(): void {\n\n        // set up the event triggers\n        fromEvent(document, 'keydown').pipe(takeUntil(this._onDestroy)).subscribe(this.onKeyDown.bind(this));\n\n        // check if there is an aria-described by attribute\n        this._ariaDescribedBy = this._elementRef.nativeElement.hasAttribute('aria-describedby');\n\n        // set up the default event triggers\n        super.ngOnInit();\n    }\n\n    /**\n     * We need to send input changes to the popover component\n     * We can't use setters as they may trigger before popover initialised and can't resend once initialised\n     **/\n    ngOnChanges(changes: SimpleChanges): void {\n        super.ngOnChanges(changes);\n\n        if (this._instance && changes.title) {\n            this._instance.setTitle(changes.title.currentValue);\n        }\n    }\n\n    protected createInstance(overlayRef: OverlayRef): PopoverComponent {\n        const instance = overlayRef.attach(this._portal).instance as PopoverComponent;\n\n        // supply the tooltip with the correct properties\n        instance.setTitle(this.title);\n        instance.setContent(this.content);\n        instance.setPlacement(this.placement);\n        instance.setAlignment(this.alignment);\n        instance.setClass(this.customClass);\n        instance.setContext(this.context);\n        instance.setRole(this.role);\n\n        // Update the aria-describedby attribute\n        this.setAriaDescribedBy(instance.id);\n\n        // subscribe to the outside click event\n        instance.clickOutside$.pipe(takeUntil(this._onDestroy)).subscribe(this.onClickOutside.bind(this));\n\n        return instance;\n    }\n\n    protected createPortal(): ComponentPortal<PopoverComponent> {\n        return this._portal || new ComponentPortal(PopoverComponent, this._viewContainerRef);\n    }\n\n    private onKeyDown(event: KeyboardEvent): void {\n\n        // if visible and the escape key is pressed and it is one of the hide triggers\n        if (this.isVisible && event.keyCode === ESCAPE && this.includes(this.hideTriggers, 'escape')) {\n            this.hide();\n        }\n    }\n\n    private onClickOutside(): void {\n        // if visible and it is one of the hide triggers\n        if (this.isVisible && this.includes(this.hideTriggers, 'clickoutside')) {\n            this.hide();\n        }\n    }\n\n    /** Programmatically update the aria-describedby property */\n    protected setAriaDescribedBy(id: string | null): void {\n\n        // we only want to set the aria-describedby attr when the content is a string and there was no user defined attribute already\n        if (this._ariaDescribedBy === false && typeof this.content === 'string') {\n            super.setAriaDescribedBy(id);\n        }\n    }\n\n}\n"]}