ng-zorro-antd
Version:
An enterprise-class UI components based on Ant Design and Angular
93 lines • 13.2 kB
JavaScript
/**
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
*/
import { CdkOverlayOrigin } from '@angular/cdk/overlay';
import { Directive, ElementRef, Input, booleanAttribute } from '@angular/core';
import { takeUntil } from 'rxjs/operators';
import { NzDestroyService } from 'ng-zorro-antd/core/services';
import { getPlacementName } from './overlay-position';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/overlay";
import * as i2 from "ng-zorro-antd/core/services";
export class NzConnectedOverlayDirective {
constructor(cdkConnectedOverlay, nzDestroyService) {
this.cdkConnectedOverlay = cdkConnectedOverlay;
this.nzDestroyService = nzDestroyService;
this.nzArrowPointAtCenter = false;
this.cdkConnectedOverlay.backdropClass = 'nz-overlay-transparent-backdrop';
this.cdkConnectedOverlay.positionChange
.pipe(takeUntil(this.nzDestroyService))
.subscribe((position) => {
if (this.nzArrowPointAtCenter) {
this.updateArrowPosition(position);
}
});
}
updateArrowPosition(position) {
const originRect = this.getOriginRect();
const placement = getPlacementName(position);
let offsetX = 0;
let offsetY = 0;
if (placement === 'topLeft' || placement === 'bottomLeft') {
offsetX = originRect.width / 2 - 14;
}
else if (placement === 'topRight' || placement === 'bottomRight') {
offsetX = -(originRect.width / 2 - 14);
}
else if (placement === 'leftTop' || placement === 'rightTop') {
offsetY = originRect.height / 2 - 10;
}
else if (placement === 'leftBottom' || placement === 'rightBottom') {
offsetY = -(originRect.height / 2 - 10);
}
if (this.cdkConnectedOverlay.offsetX !== offsetX || this.cdkConnectedOverlay.offsetY !== offsetY) {
this.cdkConnectedOverlay.offsetY = offsetY;
this.cdkConnectedOverlay.offsetX = offsetX;
this.cdkConnectedOverlay.overlayRef.updatePosition();
}
}
getFlexibleConnectedPositionStrategyOrigin() {
if (this.cdkConnectedOverlay.origin instanceof CdkOverlayOrigin) {
return this.cdkConnectedOverlay.origin.elementRef;
}
else {
return this.cdkConnectedOverlay.origin;
}
}
getOriginRect() {
const origin = this.getFlexibleConnectedPositionStrategyOrigin();
if (origin instanceof ElementRef) {
return origin.nativeElement.getBoundingClientRect();
}
// Check for Element so SVG elements are also supported.
if (origin instanceof Element) {
return origin.getBoundingClientRect();
}
const width = origin.width || 0;
const height = origin.height || 0;
// If the origin is a point, return a client rect as if it was a 0x0 element at the point.
return {
top: origin.y,
bottom: origin.y + height,
left: origin.x,
right: origin.x + width,
height,
width
};
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.1.2", ngImport: i0, type: NzConnectedOverlayDirective, deps: [{ token: i1.CdkConnectedOverlay }, { token: i2.NzDestroyService }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "16.1.0", version: "18.1.2", type: NzConnectedOverlayDirective, selector: "[cdkConnectedOverlay][nzConnectedOverlay]", inputs: { nzArrowPointAtCenter: ["nzArrowPointAtCenter", "nzArrowPointAtCenter", booleanAttribute] }, providers: [NzDestroyService], exportAs: ["nzConnectedOverlay"], ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.1.2", ngImport: i0, type: NzConnectedOverlayDirective, decorators: [{
type: Directive,
args: [{
selector: '[cdkConnectedOverlay][nzConnectedOverlay]',
exportAs: 'nzConnectedOverlay',
providers: [NzDestroyService]
}]
}], ctorParameters: () => [{ type: i1.CdkConnectedOverlay }, { type: i2.NzDestroyService }], propDecorators: { nzArrowPointAtCenter: [{
type: Input,
args: [{ transform: booleanAttribute }]
}] } });
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14;\n    } else if (placement === 'topRight' || placement === 'bottomRight') {\n      offsetX = -(originRect.width / 2 - 14);\n    } else if (placement === 'leftTop' || placement === 'rightTop') {\n      offsetY = originRect.height / 2 - 10;\n    } else if (placement === 'leftBottom' || placement === 'rightBottom') {\n      offsetY = -(originRect.height / 2 - 10);\n    }\n\n    if (this.cdkConnectedOverlay.offsetX !== offsetX || this.cdkConnectedOverlay.offsetY !== offsetY) {\n      this.cdkConnectedOverlay.offsetY = offsetY;\n      this.cdkConnectedOverlay.offsetX = offsetX;\n      this.cdkConnectedOverlay.overlayRef.updatePosition();\n    }\n  }\n\n  private getFlexibleConnectedPositionStrategyOrigin(): FlexibleConnectedPositionStrategyOrigin {\n    if (this.cdkConnectedOverlay.origin instanceof CdkOverlayOrigin) {\n      return this.cdkConnectedOverlay.origin.elementRef;\n    } else {\n      return this.cdkConnectedOverlay.origin;\n    }\n  }\n\n  private getOriginRect(): Dimensions {\n    const origin = this.getFlexibleConnectedPositionStrategyOrigin();\n\n    if (origin instanceof ElementRef) {\n      return origin.nativeElement.getBoundingClientRect();\n    }\n\n    // Check for Element so SVG elements are also supported.\n    if (origin instanceof Element) {\n      return origin.getBoundingClientRect();\n    }\n\n    const width = origin.width || 0;\n    const height = origin.height || 0;\n\n    // If the origin is a point, return a client rect as if it was a 0x0 element at the point.\n    return {\n      top: origin.y,\n      bottom: origin.y + height,\n      left: origin.x,\n      right: origin.x + width,\n      height,\n      width\n    };\n  }\n}\n"]}