@hxui/angular
Version:
An Angular library based on the [HXUI design system](https://hxui.io).
281 lines • 36.5 kB
JavaScript
import { Overlay } from '@angular/cdk/overlay';
import { TemplatePortal } from '@angular/cdk/portal';
import { ContentChild, Directive, ElementRef, EventEmitter, Input, Output, Renderer2, ViewContainerRef } from '@angular/core';
import { Subject } from 'rxjs';
import { takeUntil } from 'rxjs/operators';
import { DropdownMenuDirective } from './dropdown-menu.directive';
import { DropdownConfig } from './dropdown.config';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/overlay";
import * as i2 from "./dropdown.config";
export class DropdownDirective {
constructor(_elementRef, _viewContainerRef, overlay, _config, renderer) {
this._elementRef = _elementRef;
this._viewContainerRef = _viewContainerRef;
this.overlay = overlay;
this._config = _config;
this.renderer = renderer;
this._destroyed = new Subject();
this.isOpen = false;
this.placement = 'bottom';
this._autoClose = this._config.autoClose;
this.isOpenChange = new EventEmitter();
this.onShown = new EventEmitter();
this.onHidden = new EventEmitter();
this.isDisabled = false;
this.showDelay = this._config.showDelay;
this.hideDelay = this._config.hideDelay;
this.offsetY = 0;
this.offsetX = 0;
this.createClipPathMask = false;
}
set autoClose(value) {
this._autoClose = value;
}
get autoClose() {
return this._autoClose;
}
ngOnDestroy() {
if (this._overlayRef) {
this._overlayRef.dispose();
this._overlayRef = null;
}
this._destroyed.next(true);
this._destroyed.complete();
}
/**
* Toggles an element’s popover. This is considered a “manual” triggering of
* the popover.
*/
toggle(value) {
if (this.isOpen || value === false) {
return this.hide();
}
return this.show();
}
show(delay = this.showDelay) {
if (this.isDisabled || this.isOpen) {
return;
}
const overlayRef = this._createOverlay();
this._detach();
overlayRef.attach(this._portal);
if (this.createClipPathMask) {
this._addClipPathMaskStyles();
}
this._setWidthsRelativeTo(overlayRef);
this.isOpen = true;
this.isOpenChange.emit(this.isOpen);
this.onShown.emit();
}
hide(delay = this.hideDelay) {
this._detach();
this.isOpen = false;
this.isOpenChange.emit(this.isOpen);
this.onHidden.emit();
}
_createOverlay() {
if (this._overlayRef) {
return this._overlayRef;
}
this._portal = new TemplatePortal(this.menu.templateRef, this._viewContainerRef);
const positionStrategy = this.overlay
.position()
.flexibleConnectedTo(this._elementRef)
.withFlexibleDimensions(false)
.withDefaultOffsetX(this.offsetX)
.withDefaultOffsetY(this.offsetY)
.withPositions([
{ originX: 'start', originY: 'top', overlayX: 'start', overlayY: 'top' }
])
.withTransformOriginOn('.hxa-dropdown-control');
this._overlayRef = this.overlay.create({
positionStrategy: positionStrategy,
panelClass: [
'hxui-reset',
'hxa-dropdown-panel',
'is-open',
this.minWidthRelativeTo ? 'is-fluid-min-width' : 'not-fuild-min-width'
],
hasBackdrop: true,
backdropClass: 'cdk-overlay-transparent-backdrop'
});
this._updatePosition();
this._overlayRef
.detachments()
.pipe(takeUntil(this._destroyed))
.subscribe(() => this._detach());
this._overlayRef.backdropClick().subscribe(() => this.hide());
const position = this._overlayRef.getConfig()
.positionStrategy;
position.positionChanges.pipe(takeUntil(this._destroyed)).subscribe(pos => {
if (pos.connectionPair.originX === 'start') {
this.placement = 'left';
}
else if (pos.connectionPair.originX === 'end') {
this.placement = 'right';
}
else if (pos.connectionPair.originY === 'top') {
this.placement = 'top';
}
else if (pos.connectionPair.originY === 'bottom') {
this.placement = 'bottom';
}
});
return this._overlayRef;
}
_detach() {
if (this._overlayRef && this._overlayRef.hasAttached()) {
this._overlayRef.detach();
}
}
_setWidthsRelativeTo(overlayRef) {
if (this.maxWidthRelativeTo && this.minWidthRelativeTo) {
const elem = document.getElementById(this.maxWidthRelativeTo);
overlayRef.updateSize({
minWidth: elem.clientWidth,
maxWidth: elem.clientWidth
});
}
else if (this.maxWidthRelativeTo) {
const elem = document.getElementById(this.maxWidthRelativeTo);
overlayRef.updateSize({ maxWidth: elem.clientWidth });
}
else if (this.minWidthRelativeTo) {
const elem = document.getElementById(this.minWidthRelativeTo);
overlayRef.updateSize({ minWidth: elem.clientWidth });
}
}
_updatePosition() {
const position = this._overlayRef.getConfig()
.positionStrategy;
const origin = this._getOrigin();
const overlay = this._getOverlayPosition();
position.withPositions([
{ ...origin.main, ...overlay.main },
{ ...origin.fallback, ...overlay.fallback }
]);
}
/**
* Returns the origin position and a fallback position based on the user's position preference.
* The fallback position is the inverse of the origin (e.g. `'bottom' -> 'top'`).
*/
_getOrigin() {
const placement = this.placement;
let originPlacement;
if (placement === 'top' || placement === 'bottom') {
originPlacement = {
originX: 'start',
originY: placement === 'top' ? 'top' : 'bottom'
};
}
else if (placement === 'left') {
originPlacement = { originX: 'start', originY: 'center' };
}
else if (placement === 'right') {
originPlacement = { originX: 'end', originY: 'center' };
}
else {
console.error('Position error', placement);
}
const { x, y } = this._invertPosition(originPlacement.originX, originPlacement.originY);
return {
main: originPlacement,
fallback: { originX: x, originY: y }
};
}
/** Returns the overlay position and a fallback position based on the user's preference */
_getOverlayPosition() {
const placement = this.placement;
let overlayPlacement;
if (placement === 'top') {
overlayPlacement = { overlayX: 'start', overlayY: 'bottom' };
}
else if (placement === 'bottom') {
overlayPlacement = { overlayX: 'start', overlayY: 'top' };
}
else if (placement === 'left') {
overlayPlacement = { overlayX: 'end', overlayY: 'center' };
}
else if (placement === 'right') {
overlayPlacement = { overlayX: 'start', overlayY: 'center' };
}
else {
console.error('Could not find a position', placement);
}
const { x, y } = this._invertPosition(overlayPlacement.overlayX, overlayPlacement.overlayY);
return {
main: overlayPlacement,
fallback: { overlayX: x, overlayY: y }
};
}
_invertPosition(x, y) {
if (this.placement === 'top' || this.placement === 'bottom') {
if (y === 'top') {
y = 'bottom';
}
else if (y === 'bottom') {
y = 'top';
}
}
else {
if (x === 'end') {
x = 'start';
}
else if (x === 'start') {
x = 'end';
}
}
return { x, y };
}
// Create a clip path mask in the backdrop. The mask is a rectangle, the size of the viewcontainer
// This enables the user to interact with the contents of the viewcontainer without closing the dropdown
_addClipPathMaskStyles() {
const HTMLEl = this._overlayRef.backdropElement;
const viewRefNativeEl = this._viewContainerRef.element.nativeElement;
const elRect = viewRefNativeEl.getBoundingClientRect();
if (elRect) {
const clipPathStyle = `polygon(0% 0%, 0% 100%, ${elRect.left}px 100%, ${elRect.left}px ${elRect.top}px, ${elRect.right}px ${elRect.top}px, ${elRect.right}px ${elRect.bottom}px, ${elRect.left}px ${elRect.bottom}px, ${elRect.left}px 100%, 100% 100%, 100% 0%)`;
this.renderer.setStyle(HTMLEl, 'clip-path', clipPathStyle);
}
}
}
DropdownDirective.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.3.11", ngImport: i0, type: DropdownDirective, deps: [{ token: i0.ElementRef }, { token: i0.ViewContainerRef }, { token: i1.Overlay }, { token: i2.DropdownConfig }, { token: i0.Renderer2 }], target: i0.ɵɵFactoryTarget.Directive });
DropdownDirective.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "12.0.0", version: "13.3.11", type: DropdownDirective, selector: "[hxaDropdown],[hxDropdown]", inputs: { placement: "placement", autoClose: "autoClose", isDisabled: "isDisabled", showDelay: "showDelay", hideDelay: "hideDelay", maxWidthRelativeTo: "maxWidthRelativeTo", minWidthRelativeTo: "minWidthRelativeTo", offsetY: "offsetY", offsetX: "offsetX", createClipPathMask: "createClipPathMask" }, outputs: { isOpenChange: "isOpenChange", onShown: "onShown", onHidden: "onHidden" }, queries: [{ propertyName: "menu", first: true, predicate: DropdownMenuDirective, descendants: true }], exportAs: ["hx-dropdown", "hxa-dropdown"], ngImport: i0 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.3.11", ngImport: i0, type: DropdownDirective, decorators: [{
type: Directive,
args: [{
selector: '[hxaDropdown],[hxDropdown]',
exportAs: 'hx-dropdown, hxa-dropdown'
}]
}], ctorParameters: function () { return [{ type: i0.ElementRef }, { type: i0.ViewContainerRef }, { type: i1.Overlay }, { type: i2.DropdownConfig }, { type: i0.Renderer2 }]; }, propDecorators: { menu: [{
type: ContentChild,
args: [DropdownMenuDirective]
}], placement: [{
type: Input
}], autoClose: [{
type: Input
}], isOpenChange: [{
type: Output
}], onShown: [{
type: Output
}], onHidden: [{
type: Output
}], isDisabled: [{
type: Input
}], showDelay: [{
type: Input
}], hideDelay: [{
type: Input
}], maxWidthRelativeTo: [{
type: Input
}], minWidthRelativeTo: [{
type: Input
}], offsetY: [{
type: Input
}], offsetX: [{
type: Input
}], createClipPathMask: [{
type: Input
}] } });
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{\r\n  FlexibleConnectedPositionStrategy,\r\n  HorizontalConnectionPos,\r\n  OriginConnectionPosition,\r\n  Overlay,\r\n  OverlayConnectionPosition,\r\n  OverlayRef,\r\n  VerticalConnectionPos\r\n} from '@angular/cdk/overlay';\r\nimport { TemplatePortal } from '@angular/cdk/portal';\r\nimport {\r\n  ContentChild,\r\n  Directive,\r\n  ElementRef,\r\n  EventEmitter,\r\n  Input,\r\n  OnDestroy,\r\n  Output,\r\n  Renderer2,\r\n  ViewContainerRef\r\n} from '@angular/core';\r\nimport { Subject } from 'rxjs';\r\nimport { takeUntil } from 'rxjs/operators';\r\nimport { DropdownMenuDirective } from './dropdown-menu.directive';\r\nimport { DropdownConfig } from './dropdown.config';\r\n\r\n@Directive({\r\n  selector: '[hxaDropdown],[hxDropdown]',\r\n  exportAs: 'hx-dropdown, hxa-dropdown'\r\n})\r\nexport class DropdownDirective implements OnDestroy {\r\n  @ContentChild(DropdownMenuDirective) menu: DropdownMenuDirective;\r\n\r\n  _overlayRef: OverlayRef | null;\r\n  private _portal: TemplatePortal;\r\n  private readonly _destroyed = new Subject();\r\n  public isOpen = false;\r\n\r\n  @Input()\r\n  placement: 'top' | 'bottom' | 'left' | 'right' = 'bottom';\r\n\r\n  private _autoClose = this._config.autoClose;\r\n  @Input()\r\n  set autoClose(value: boolean) {\r\n    this._autoClose = value;\r\n  }\r\n\r\n  get autoClose(): boolean {\r\n    return this._autoClose;\r\n  }\r\n\r\n  @Output() isOpenChange: EventEmitter<boolean> = new EventEmitter<boolean>();\r\n\r\n  @Output() onShown: EventEmitter<any> = new EventEmitter<any>();\r\n\r\n  @Output() onHidden: EventEmitter<any> = new EventEmitter<any>();\r\n\r\n  @Input()\r\n  isDisabled = false;\r\n\r\n  @Input()\r\n  showDelay = this._config.showDelay;\r\n\r\n  @Input()\r\n  hideDelay = this._config.hideDelay;\r\n\r\n  @Input()\r\n  maxWidthRelativeTo: string;\r\n\r\n  @Input()\r\n  minWidthRelativeTo: string;\r\n\r\n  @Input()\r\n  offsetY = 0;\r\n\r\n  @Input()\r\n  offsetX = 0;\r\n\r\n  @Input()\r\n  createClipPathMask = false;\r\n\r\n  constructor(\r\n    private _elementRef: ElementRef,\r\n    private _viewContainerRef: ViewContainerRef,\r\n    public overlay: Overlay,\r\n    public _config: DropdownConfig,\r\n    private renderer: Renderer2\r\n  ) {}\r\n\r\n  ngOnDestroy(): void {\r\n    if (this._overlayRef) {\r\n      this._overlayRef.dispose();\r\n      this._overlayRef = null;\r\n    }\r\n    this._destroyed.next(true);\r\n    this._destroyed.complete();\r\n  }\r\n\r\n  /**\r\n   * Toggles an element’s popover. This is considered a “manual” triggering of\r\n   * the popover.\r\n   */\r\n  toggle(value?: boolean): void {\r\n    if (this.isOpen || value === false) {\r\n      return this.hide();\r\n    }\r\n\r\n    return this.show();\r\n  }\r\n\r\n  show(delay: number = this.showDelay) {\r\n    if (this.isDisabled || this.isOpen) {\r\n      return;\r\n    }\r\n\r\n    const overlayRef = this._createOverlay();\r\n    this._detach();\r\n    overlayRef.attach(this._portal);\r\n\r\n    if (this.createClipPathMask) {\r\n      this._addClipPathMaskStyles();\r\n    }\r\n\r\n    this._setWidthsRelativeTo(overlayRef);\r\n    this.isOpen = true;\r\n    this.isOpenChange.emit(this.isOpen);\r\n    this.onShown.emit();\r\n  }\r\n\r\n  hide(delay: number = this.hideDelay) {\r\n    this._detach();\r\n    this.isOpen = false;\r\n    this.isOpenChange.emit(this.isOpen);\r\n    this.onHidden.emit();\r\n  }\r\n\r\n  private _createOverlay(): OverlayRef {\r\n    if (this._overlayRef) {\r\n      return this._overlayRef;\r\n    }\r\n\r\n    this._portal = new TemplatePortal(\r\n      this.menu.templateRef,\r\n      this._viewContainerRef\r\n    );\r\n\r\n    const positionStrategy = this.overlay\r\n      .position()\r\n      .flexibleConnectedTo(this._elementRef)\r\n      .withFlexibleDimensions(false)\r\n      .withDefaultOffsetX(this.offsetX)\r\n      .withDefaultOffsetY(this.offsetY)\r\n      .withPositions([\r\n        { originX: 'start', originY: 'top', overlayX: 'start', overlayY: 'top' }\r\n      ])\r\n      .withTransformOriginOn('.hxa-dropdown-control');\r\n\r\n    this._overlayRef = this.overlay.create({\r\n      positionStrategy: positionStrategy,\r\n      panelClass: [\r\n        'hxui-reset',\r\n        'hxa-dropdown-panel',\r\n        'is-open',\r\n        this.minWidthRelativeTo ? 'is-fluid-min-width' : 'not-fuild-min-width'\r\n      ],\r\n      hasBackdrop: true,\r\n      backdropClass: 'cdk-overlay-transparent-backdrop'\r\n    });\r\n\r\n    this._updatePosition();\r\n\r\n    this._overlayRef\r\n      .detachments()\r\n      .pipe(takeUntil(this._destroyed))\r\n      .subscribe(() => this._detach());\r\n\r\n    this._overlayRef.backdropClick().subscribe(() => this.hide());\r\n\r\n    const position = this._overlayRef.getConfig()\r\n      .positionStrategy as FlexibleConnectedPositionStrategy;\r\n    position.positionChanges.pipe(takeUntil(this._destroyed)).subscribe(pos => {\r\n      if (pos.connectionPair.originX === 'start') {\r\n        this.placement = 'left';\r\n      } else if (pos.connectionPair.originX === 'end') {\r\n        this.placement = 'right';\r\n      } else if (pos.connectionPair.originY === 'top') {\r\n        this.placement = 'top';\r\n      } else if (pos.connectionPair.originY === 'bottom') {\r\n        this.placement = 'bottom';\r\n      }\r\n    });\r\n\r\n    return this._overlayRef;\r\n  }\r\n\r\n  private _detach() {\r\n    if (this._overlayRef && this._overlayRef.hasAttached()) {\r\n      this._overlayRef.detach();\r\n    }\r\n  }\r\n\r\n  private _setWidthsRelativeTo(overlayRef: OverlayRef) {\r\n    if (this.maxWidthRelativeTo && this.minWidthRelativeTo) {\r\n      const elem: Element = document.getElementById(this.maxWidthRelativeTo);\r\n      overlayRef.updateSize({\r\n        minWidth: elem.clientWidth,\r\n        maxWidth: elem.clientWidth\r\n      });\r\n    } else if (this.maxWidthRelativeTo) {\r\n      const elem: Element = document.getElementById(this.maxWidthRelativeTo);\r\n      overlayRef.updateSize({ maxWidth: elem.clientWidth });\r\n    } else if (this.minWidthRelativeTo) {\r\n      const elem: Element = document.getElementById(this.minWidthRelativeTo);\r\n      overlayRef.updateSize({ minWidth: elem.clientWidth });\r\n    }\r\n  }\r\n\r\n  private _updatePosition() {\r\n    const position = this._overlayRef!.getConfig()\r\n      .positionStrategy as FlexibleConnectedPositionStrategy;\r\n    const origin = this._getOrigin();\r\n    const overlay = this._getOverlayPosition();\r\n\r\n    position.withPositions([\r\n      { ...origin.main, ...overlay.main },\r\n      { ...origin.fallback, ...overlay.fallback }\r\n    ]);\r\n  }\r\n\r\n  /**\r\n   * Returns the origin position and a fallback position based on the user's position preference.\r\n   * The fallback position is the inverse of the origin (e.g. `'bottom' -> 'top'`).\r\n   */\r\n  private _getOrigin(): {\r\n    main: OriginConnectionPosition;\r\n    fallback: OriginConnectionPosition;\r\n  } {\r\n    const placement = this.placement;\r\n    let originPlacement: OriginConnectionPosition;\r\n\r\n    if (placement === 'top' || placement === 'bottom') {\r\n      originPlacement = {\r\n        originX: 'start',\r\n        originY: placement === 'top' ? 'top' : 'bottom'\r\n      };\r\n    } else if (placement === 'left') {\r\n      originPlacement = { originX: 'start', originY: 'center' };\r\n    } else if (placement === 'right') {\r\n      originPlacement = { originX: 'end', originY: 'center' };\r\n    } else {\r\n      console.error('Position error', placement);\r\n    }\r\n\r\n    const { x, y } = this._invertPosition(\r\n      originPlacement.originX,\r\n      originPlacement.originY\r\n    );\r\n\r\n    return {\r\n      main: originPlacement,\r\n      fallback: { originX: x, originY: y }\r\n    };\r\n  }\r\n\r\n  /** Returns the overlay position and a fallback position based on the user's preference */\r\n  private _getOverlayPosition(): {\r\n    main: OverlayConnectionPosition;\r\n    fallback: OverlayConnectionPosition;\r\n  } {\r\n    const placement = this.placement;\r\n    let overlayPlacement: OverlayConnectionPosition;\r\n\r\n    if (placement === 'top') {\r\n      overlayPlacement = { overlayX: 'start', overlayY: 'bottom' };\r\n    } else if (placement === 'bottom') {\r\n      overlayPlacement = { overlayX: 'start', overlayY: 'top' };\r\n    } else if (placement === 'left') {\r\n      overlayPlacement = { overlayX: 'end', overlayY: 'center' };\r\n    } else if (placement === 'right') {\r\n      overlayPlacement = { overlayX: 'start', overlayY: 'center' };\r\n    } else {\r\n      console.error('Could not find a position', placement);\r\n    }\r\n\r\n    const { x, y } = this._invertPosition(\r\n      overlayPlacement.overlayX,\r\n      overlayPlacement.overlayY\r\n    );\r\n\r\n    return {\r\n      main: overlayPlacement,\r\n      fallback: { overlayX: x, overlayY: y }\r\n    };\r\n  }\r\n\r\n  private _invertPosition(\r\n    x: HorizontalConnectionPos,\r\n    y: VerticalConnectionPos\r\n  ) {\r\n    if (this.placement === 'top' || this.placement === 'bottom') {\r\n      if (y === 'top') {\r\n        y = 'bottom';\r\n      } else if (y === 'bottom') {\r\n        y = 'top';\r\n      }\r\n    } else {\r\n      if (x === 'end') {\r\n        x = 'start';\r\n      } else if (x === 'start') {\r\n        x = 'end';\r\n      }\r\n    }\r\n\r\n    return { x, y };\r\n  }\r\n\r\n  // Create a clip path mask in the backdrop. The mask is a rectangle, the size of the viewcontainer\r\n  // This enables the user to interact with the contents of the viewcontainer without closing the dropdown\r\n  private _addClipPathMaskStyles() {\r\n    const HTMLEl = this._overlayRef.backdropElement;\r\n    const viewRefNativeEl = this._viewContainerRef.element.nativeElement;\r\n    const elRect = viewRefNativeEl.getBoundingClientRect();\r\n    if (elRect) {\r\n      const clipPathStyle = `polygon(0% 0%, 0% 100%, ${elRect.left}px 100%, ${elRect.left}px ${elRect.top}px, ${elRect.right}px ${elRect.top}px, ${elRect.right}px ${elRect.bottom}px, ${elRect.left}px ${elRect.bottom}px, ${elRect.left}px 100%, 100% 100%, 100% 0%)`;\r\n      this.renderer.setStyle(HTMLEl, 'clip-path', clipPathStyle);\r\n    }\r\n  }\r\n}\r\n"]}