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@odymaui/angular-tree-component

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A simple yet powerful tree component for Angular16. WARNING: This is an unsupported fork for use in a dependent project to upgrade it to Angular 16. Unit tests pass and the example-app works as expected.

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import { Directive, Input } from '@angular/core'; import * as i0 from "@angular/core"; const EASE_ACCELERATION = 1.005; export class TreeAnimateOpenDirective { renderer; templateRef; viewContainerRef; _isOpen; animateSpeed; animateAcceleration; isEnabled; set isOpen(value) { if (value) { this._show(); if (this.isEnabled && this._isOpen === false) { this._animateOpen(); } } else { this.isEnabled ? this._animateClose() : this._hide(); } this._isOpen = !!value; } ; innerElement; constructor(renderer, templateRef, viewContainerRef) { this.renderer = renderer; this.templateRef = templateRef; this.viewContainerRef = viewContainerRef; } _show() { if (this.innerElement) return; // create child view this.innerElement = this.viewContainerRef.createEmbeddedView(this.templateRef).rootNodes[0]; } _hide() { this.viewContainerRef.clear(); this.innerElement = null; } _animateOpen() { let delta = this.animateSpeed; let ease = this.animateAcceleration; let maxHeight = 0; // set height to 0 this.renderer.setStyle(this.innerElement, 'max-height', `0`); // increase maxHeight until height doesn't change setTimeout(() => { const i = setInterval(() => { if (!this._isOpen || !this.innerElement) return clearInterval(i); maxHeight += delta; const roundedMaxHeight = Math.round(maxHeight); this.renderer.setStyle(this.innerElement, 'max-height', `${roundedMaxHeight}px`); const height = this.innerElement.getBoundingClientRect ? this.innerElement.getBoundingClientRect().height : 0; // TBD use renderer delta *= ease; ease *= EASE_ACCELERATION; if (height < roundedMaxHeight) { // Make maxHeight auto because animation finished and container might change height later on this.renderer.setStyle(this.innerElement, 'max-height', null); clearInterval(i); } }, 17); }); } _animateClose() { if (!this.innerElement) return; let delta = this.animateSpeed; let ease = this.animateAcceleration; let height = this.innerElement.getBoundingClientRect().height; // TBD use renderer // slowly decrease maxHeight to 0, starting from current height const i = setInterval(() => { if (this._isOpen || !this.innerElement) return clearInterval(i); height -= delta; this.renderer.setStyle(this.innerElement, 'max-height', `${height}px`); delta *= ease; ease *= EASE_ACCELERATION; if (height <= 0) { // after animation complete - remove child element this.viewContainerRef.clear(); this.innerElement = null; clearInterval(i); } }, 17); } /** @nocollapse */ static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.1.2", ngImport: i0, type: TreeAnimateOpenDirective, deps: [{ token: i0.Renderer2 }, { token: i0.TemplateRef }, { token: i0.ViewContainerRef }], target: i0.ɵɵFactoryTarget.Directive }); /** @nocollapse */ static ɵdir = i0.ɵɵngDeclareDirective({ minVersion: "14.0.0", version: "16.1.2", type: TreeAnimateOpenDirective, selector: "[treeAnimateOpen]", inputs: { animateSpeed: ["treeAnimateOpenSpeed", "animateSpeed"], animateAcceleration: ["treeAnimateOpenAcceleration", "animateAcceleration"], isEnabled: ["treeAnimateOpenEnabled", "isEnabled"], isOpen: ["treeAnimateOpen", "isOpen"] }, ngImport: i0 }); } i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.1.2", ngImport: i0, type: TreeAnimateOpenDirective, decorators: [{ type: Directive, args: [{ selector: '[treeAnimateOpen]' }] }], ctorParameters: function () { return [{ type: i0.Renderer2 }, { type: i0.TemplateRef }, { type: i0.ViewContainerRef }]; }, propDecorators: { animateSpeed: [{ type: Input, args: ['treeAnimateOpenSpeed'] }], animateAcceleration: [{ type: Input, args: ['treeAnimateOpenAcceleration'] }], isEnabled: [{ type: Input, args: ['treeAnimateOpenEnabled'] }], isOpen: [{ type: Input, args: ['treeAnimateOpen'] }] } }); //# 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{ Directive, Input, Renderer2, TemplateRef, ViewContainerRef } from '@angular/core';\r\n\r\nconst EASE_ACCELERATION = 1.005;\r\n\r\n@Directive({\r\n  selector: '[treeAnimateOpen]'\r\n})\r\nexport class TreeAnimateOpenDirective {\r\n  private _isOpen: boolean;\r\n\r\n  @Input('treeAnimateOpenSpeed') animateSpeed: number;\r\n  @Input('treeAnimateOpenAcceleration') animateAcceleration: number;\r\n  @Input('treeAnimateOpenEnabled') isEnabled: boolean;\r\n\r\n  @Input('treeAnimateOpen')\r\n  set isOpen(value: boolean) {\r\n    if (value) {\r\n      this._show();\r\n      if (this.isEnabled && this._isOpen === false) {\r\n        this._animateOpen();\r\n      }\r\n    } else {\r\n      this.isEnabled ? this._animateClose() : this._hide();\r\n    }\r\n    this._isOpen = !!value;\r\n  };\r\n\r\n  private innerElement: any;\r\n\r\n  constructor(\r\n    private renderer: Renderer2,\r\n    private templateRef: TemplateRef<any>,\r\n    private viewContainerRef: ViewContainerRef) {\r\n  }\r\n\r\n  private _show() {\r\n    if (this.innerElement) return;\r\n\r\n    // create child view\r\n    this.innerElement = this.viewContainerRef.createEmbeddedView(this.templateRef).rootNodes[0];\r\n  }\r\n\r\n  private _hide() {\r\n    this.viewContainerRef.clear();\r\n    this.innerElement = null;\r\n  }\r\n\r\n  private _animateOpen() {\r\n    let delta = this.animateSpeed;\r\n    let ease = this.animateAcceleration;\r\n    let maxHeight = 0;\r\n\r\n    // set height to 0\r\n    this.renderer.setStyle(this.innerElement, 'max-height', `0`);\r\n\r\n    // increase maxHeight until height doesn't change\r\n    setTimeout(() => { // Allow inner element to create its content\r\n      const i = setInterval(() => {\r\n        if (!this._isOpen || !this.innerElement) return clearInterval(i);\r\n\r\n        maxHeight += delta;\r\n        const roundedMaxHeight = Math.round(maxHeight);\r\n\r\n        this.renderer.setStyle(this.innerElement, 'max-height', `${roundedMaxHeight}px`);\r\n        const height = this.innerElement.getBoundingClientRect ? this.innerElement.getBoundingClientRect().height : 0; // TBD use renderer\r\n\r\n        delta *= ease;\r\n        ease *= EASE_ACCELERATION;\r\n        if (height < roundedMaxHeight) {\r\n          // Make maxHeight auto because animation finished and container might change height later on\r\n          this.renderer.setStyle(this.innerElement, 'max-height', null);\r\n          clearInterval(i);\r\n        }\r\n      }, 17);\r\n    });\r\n  }\r\n\r\n  private _animateClose() {\r\n    if (!this.innerElement) return;\r\n\r\n    let delta = this.animateSpeed;\r\n    let ease = this.animateAcceleration;\r\n    let height = this.innerElement.getBoundingClientRect().height; // TBD use renderer\r\n\r\n    // slowly decrease maxHeight to 0, starting from current height\r\n    const i = setInterval(() => {\r\n      if (this._isOpen || !this.innerElement) return clearInterval(i);\r\n\r\n      height -= delta;\r\n      this.renderer.setStyle(this.innerElement, 'max-height', `${height}px`);\r\n      delta *= ease;\r\n      ease *= EASE_ACCELERATION;\r\n\r\n      if (height <= 0) {\r\n        // after animation complete - remove child element\r\n        this.viewContainerRef.clear();\r\n        this.innerElement = null;\r\n        clearInterval(i);\r\n      }\r\n    }, 17);\r\n  }\r\n}\r\n"]}