ng-devui
Version:
DevUI components based on Angular
99 lines • 12.6 kB
JavaScript
import { Directive, forwardRef, HostBinding, HostListener, Inject, Input } from '@angular/core';
import { scrollAnimate } from 'ng-devui/utils';
import { AnchorBoxDirective } from './anchor-box.directive';
import * as i0 from "@angular/core";
import * as i1 from "./anchor-box.directive";
export class AnchorLinkDirective {
get anchorActiveClass() {
return this.anchorBlock && this.anchorBlock.isActive ? this.anchorActive || '' : '';
}
set anchorName(anchor) {
this._anchorName = anchor;
this.bindAnchorAfterBoxReady();
}
get anchorName() {
return this._anchorName;
}
constructor(box) {
this.bindAnchorAfterBoxReady = () => {
if (this.boxElement.anchorMap) {
setTimeout(() => {
this.anchorBlock = this.boxElement.anchorMap[this.anchorName];
}, 0);
}
else {
this.bindingAnchorTimer = setTimeout(this.bindAnchorAfterBoxReady, 500);
}
};
this.boxElement = box;
}
ngOnInit() {
this.subscribeAnchorMapChange();
}
ngOnDestroy() {
if (this.subscription) {
this.subscription.unsubscribe();
}
}
subscribeAnchorMapChange() {
if (this.boxElement) {
this.subscription = this.boxElement.refreshAnchorMap.subscribe(() => {
if (this.bindingAnchorTimer) {
clearTimeout(this.bindingAnchorTimer);
this.bindingAnchorTimer = undefined;
}
this.bindAnchorAfterBoxReady();
});
}
}
scrollToAnchor(activeChangeBy) {
if (typeof document === 'undefined') {
return;
}
if (!this.anchorBlock) {
return;
}
const callback = () => {
setTimeout(() => {
this.boxElement.forceActiveAnchor(this.anchorName, activeChangeBy || 'anchor-link');
this.boxElement.isScrollingToTarget = false;
}, 120);
};
((container, anchor) => {
let containerScrollTop = container.scrollTop;
let containerOffsetTop = container.getBoundingClientRect().top;
if (container === document.documentElement) {
containerScrollTop += document.body.scrollTop; // scrollTop兼容性问题
containerOffsetTop = 0; // offsettop抵消
}
scrollAnimate(container, containerScrollTop, containerScrollTop +
anchor.getBoundingClientRect().top -
containerOffsetTop -
((this.boxElement.view && this.boxElement.view.top) || 0), undefined, undefined, callback);
})(this.boxElement.scrollTarget || document.documentElement, this.anchorBlock.element);
this.boxElement.isScrollingToTarget = true;
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: AnchorLinkDirective, deps: [{ token: forwardRef(() => AnchorBoxDirective) }], target: i0.ɵɵFactoryTarget.Directive }); }
static { this.ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "18.2.13", type: AnchorLinkDirective, selector: "[dAnchorLink]", inputs: { anchorName: ["dAnchorLink", "anchorName"], anchorActive: "anchorActive" }, host: { listeners: { "click": "scrollToAnchor()" }, properties: { "class": "this.anchorActiveClass" } }, ngImport: i0 }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.13", ngImport: i0, type: AnchorLinkDirective, decorators: [{
type: Directive,
args: [{
selector: '[dAnchorLink]',
}]
}], ctorParameters: () => [{ type: i1.AnchorBoxDirective, decorators: [{
type: Inject,
args: [forwardRef(() => AnchorBoxDirective)]
}] }], propDecorators: { anchorActiveClass: [{
type: HostBinding,
args: ['class']
}], anchorName: [{
type: Input,
args: ['dAnchorLink']
}], anchorActive: [{
type: Input
}], scrollToAnchor: [{
type: HostListener,
args: ['click']
}] } });
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this.anchorActive || '' : '';\n  }\n  private _anchorName;\n  @Input('dAnchorLink')\n  set anchorName(anchor: string) {\n    this._anchorName = anchor;\n    this.bindAnchorAfterBoxReady();\n  }\n  get anchorName() {\n    return this._anchorName;\n  }\n\n  @Input() anchorActive: string;\n\n  boxElement: AnchorBoxDirective;\n  anchorBlock: AnchorDirective;\n  bindingAnchorTimer;\n  subscription;\n\n  constructor(@Inject(forwardRef(() => AnchorBoxDirective)) box: AnchorBoxDirective) {\n    this.boxElement = box;\n  }\n\n  ngOnInit() {\n    this.subscribeAnchorMapChange();\n  }\n\n  ngOnDestroy() {\n    if (this.subscription) {\n      this.subscription.unsubscribe();\n    }\n  }\n\n  subscribeAnchorMapChange() {\n    if (this.boxElement) {\n      this.subscription = this.boxElement.refreshAnchorMap.subscribe(() => {\n        if (this.bindingAnchorTimer) {\n          clearTimeout(this.bindingAnchorTimer);\n          this.bindingAnchorTimer = undefined;\n        }\n        this.bindAnchorAfterBoxReady();\n      });\n    }\n  }\n\n  bindAnchorAfterBoxReady = () => {\n    if (this.boxElement.anchorMap) {\n      setTimeout(() => {\n        this.anchorBlock = this.boxElement.anchorMap[this.anchorName];\n      }, 0);\n    } else {\n      this.bindingAnchorTimer = setTimeout(this.bindAnchorAfterBoxReady, 500);\n    }\n  };\n\n  @HostListener('click')\n  scrollToAnchor(activeChangeBy?: AnchorActiveChangeSource) {\n    if (typeof document === 'undefined') {\n      return;\n    }\n    if (!this.anchorBlock) {\n      return;\n    }\n    const callback = () => {\n      setTimeout(() => {\n        this.boxElement.forceActiveAnchor(this.anchorName, activeChangeBy || 'anchor-link');\n        this.boxElement.isScrollingToTarget = false;\n      }, 120);\n    };\n    ((container: Element, anchor: Element) => {\n      let containerScrollTop = container.scrollTop;\n      let containerOffsetTop = container.getBoundingClientRect().top;\n      if (container === document.documentElement) {\n        containerScrollTop += document.body.scrollTop; // scrollTop兼容性问题\n        containerOffsetTop = 0; // offsettop抵消\n      }\n      scrollAnimate(\n        container,\n        containerScrollTop,\n        containerScrollTop +\n          anchor.getBoundingClientRect().top -\n          containerOffsetTop -\n          ((this.boxElement.view && this.boxElement.view.top) || 0),\n        undefined,\n        undefined,\n        callback\n      );\n    })(this.boxElement.scrollTarget || document.documentElement, this.anchorBlock.element);\n    this.boxElement.isScrollingToTarget = true;\n  }\n}\n"]}