@blackbaud/angular-tree-component
Version:
A simple yet powerful tree component for Angular 14+
186 lines • 19.8 kB
JavaScript
import { Component, ContentChild, EventEmitter, HostListener, Input, Output, ViewChild } from '@angular/core';
import { TreeModel } from '../models/tree.model';
import * as i0 from "@angular/core";
import * as i1 from "../models/tree.model";
import * as i2 from "../models/tree-dragged-element.model";
import * as i3 from "@angular/common";
import * as i4 from "./tree-node-drop-slot.component";
import * as i5 from "./tree-node-collection.component";
import * as i6 from "./tree-viewport.component";
export class TreeComponent {
constructor(treeModel, treeDraggedElement) {
this.treeModel = treeModel;
this.treeDraggedElement = treeDraggedElement;
treeModel.eventNames.forEach((name) => this[name] = new EventEmitter());
treeModel.subscribeToState((state) => this.stateChange.emit(state));
}
// Will be handled in ngOnChanges
set nodes(nodes) {
}
;
set options(options) {
}
;
set focused(value) {
this.treeModel.setFocus(value);
}
set state(state) {
this.treeModel.setState(state);
}
onKeydown($event) {
if (!this.treeModel.isFocused)
return;
if (['input', 'textarea'].includes(document.activeElement.tagName.toLowerCase()))
return;
const focusedNode = this.treeModel.getFocusedNode();
this.treeModel.performKeyAction(focusedNode, $event);
}
onMousedown($event) {
function isOutsideClick(startElement, nodeName) {
return !startElement ? true : startElement.localName === nodeName ? false : isOutsideClick(startElement.parentElement, nodeName);
}
if (isOutsideClick($event.target, 'tree-root')) {
this.treeModel.setFocus(false);
}
}
ngOnChanges(changes) {
if (changes.options || changes.nodes) {
this.treeModel.setData({
options: changes.options && changes.options.currentValue,
nodes: changes.nodes && changes.nodes.currentValue,
events: this.pick(this, this.treeModel.eventNames)
});
}
}
sizeChanged() {
this.viewportComponent.setViewport();
}
pick(object, keys) {
return keys.reduce((obj, key) => {
if (object && object.hasOwnProperty(key)) {
obj[key] = object[key];
}
return obj;
}, {});
}
}
/** @nocollapse */ TreeComponent.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: TreeComponent, deps: [{ token: i1.TreeModel }, { token: i2.TreeDraggedElement }], target: i0.ɵɵFactoryTarget.Component });
/** @nocollapse */ TreeComponent.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "14.3.0", type: TreeComponent, selector: "Tree, tree-root", inputs: { nodes: "nodes", options: "options", focused: "focused", state: "state" }, outputs: { toggleExpanded: "toggleExpanded", activate: "activate", deactivate: "deactivate", nodeActivate: "nodeActivate", nodeDeactivate: "nodeDeactivate", select: "select", deselect: "deselect", focus: "focus", blur: "blur", updateData: "updateData", initialized: "initialized", moveNode: "moveNode", copyNode: "copyNode", loadNodeChildren: "loadNodeChildren", changeFilter: "changeFilter", event: "event", stateChange: "stateChange" }, host: { listeners: { "body: keydown": "onKeydown($event)", "body: mousedown": "onMousedown($event)" } }, providers: [TreeModel], queries: [{ propertyName: "loadingTemplate", first: true, predicate: ["loadingTemplate"], descendants: true }, { propertyName: "treeNodeTemplate", first: true, predicate: ["treeNodeTemplate"], descendants: true }, { propertyName: "treeNodeWrapperTemplate", first: true, predicate: ["treeNodeWrapperTemplate"], descendants: true }, { propertyName: "treeNodeFullTemplate", first: true, predicate: ["treeNodeFullTemplate"], descendants: true }], viewQueries: [{ propertyName: "viewportComponent", first: true, predicate: ["viewport"], descendants: true }], usesOnChanges: true, ngImport: i0, template: `
<tree-viewport #viewport>
<div
class="angular-tree-component"
[class.node-dragging]="treeDraggedElement.isDragging()"
[class.angular-tree-component-rtl]="treeModel.options.rtl">
<tree-node-collection
*ngIf="treeModel.roots"
[nodes]="treeModel.roots"
[treeModel]="treeModel"
[templates]="{
loadingTemplate: loadingTemplate,
treeNodeTemplate: treeNodeTemplate,
treeNodeWrapperTemplate: treeNodeWrapperTemplate,
treeNodeFullTemplate: treeNodeFullTemplate
}">
</tree-node-collection>
<tree-node-drop-slot
class="empty-tree-drop-slot"
*ngIf="treeModel.isEmptyTree()"
[dropIndex]="0"
[node]="treeModel.virtualRoot">
</tree-node-drop-slot>
</div>
</tree-viewport>
`, isInline: true, dependencies: [{ kind: "directive", type: i3.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "component", type: i4.TreeNodeDropSlot, selector: "TreeNodeDropSlot, tree-node-drop-slot", inputs: ["node", "dropIndex"] }, { kind: "component", type: i5.TreeNodeCollectionComponent, selector: "tree-node-collection", inputs: ["nodes", "treeModel", "templates"] }, { kind: "component", type: i6.TreeViewportComponent, selector: "tree-viewport" }] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: TreeComponent, decorators: [{
type: Component,
args: [{ selector: 'Tree, tree-root', providers: [TreeModel], template: `
<tree-viewport #viewport>
<div
class="angular-tree-component"
[class.node-dragging]="treeDraggedElement.isDragging()"
[class.angular-tree-component-rtl]="treeModel.options.rtl">
<tree-node-collection
*ngIf="treeModel.roots"
[nodes]="treeModel.roots"
[treeModel]="treeModel"
[templates]="{
loadingTemplate: loadingTemplate,
treeNodeTemplate: treeNodeTemplate,
treeNodeWrapperTemplate: treeNodeWrapperTemplate,
treeNodeFullTemplate: treeNodeFullTemplate
}">
</tree-node-collection>
<tree-node-drop-slot
class="empty-tree-drop-slot"
*ngIf="treeModel.isEmptyTree()"
[dropIndex]="0"
[node]="treeModel.virtualRoot">
</tree-node-drop-slot>
</div>
</tree-viewport>
` }]
}], ctorParameters: function () { return [{ type: i1.TreeModel }, { type: i2.TreeDraggedElement }]; }, propDecorators: { loadingTemplate: [{
type: ContentChild,
args: ['loadingTemplate', { static: false }]
}], treeNodeTemplate: [{
type: ContentChild,
args: ['treeNodeTemplate', { static: false }]
}], treeNodeWrapperTemplate: [{
type: ContentChild,
args: ['treeNodeWrapperTemplate', { static: false }]
}], treeNodeFullTemplate: [{
type: ContentChild,
args: ['treeNodeFullTemplate', { static: false }]
}], viewportComponent: [{
type: ViewChild,
args: ['viewport', { static: false }]
}], nodes: [{
type: Input
}], options: [{
type: Input
}], focused: [{
type: Input
}], state: [{
type: Input
}], toggleExpanded: [{
type: Output
}], activate: [{
type: Output
}], deactivate: [{
type: Output
}], nodeActivate: [{
type: Output
}], nodeDeactivate: [{
type: Output
}], select: [{
type: Output
}], deselect: [{
type: Output
}], focus: [{
type: Output
}], blur: [{
type: Output
}], updateData: [{
type: Output
}], initialized: [{
type: Output
}], moveNode: [{
type: Output
}], copyNode: [{
type: Output
}], loadNodeChildren: [{
type: Output
}], changeFilter: [{
type: Output
}], event: [{
type: Output
}], stateChange: [{
type: Output
}], onKeydown: [{
type: HostListener,
args: ['body: keydown', ['$event']]
}], onMousedown: [{
type: HostListener,
args: ['body: mousedown', ['$event']]
}] } });
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{ Component, ContentChild, EventEmitter, HostListener, Input, OnChanges, Output, TemplateRef, ViewChild } from '@angular/core';\nimport { TreeModel } from '../models/tree.model';\nimport { TreeDraggedElement } from '../models/tree-dragged-element.model';\nimport { TreeOptions } from '../models/tree-options.model';\nimport { ITreeOptions } from '../defs/api';\nimport { TreeViewportComponent } from './tree-viewport.component';\n\n@Component({\n  selector: 'Tree, tree-root',\n  providers: [TreeModel],\n  styles: [],\n  template: `\n      <tree-viewport #viewport>\n          <div\n                  class=\"angular-tree-component\"\n                  [class.node-dragging]=\"treeDraggedElement.isDragging()\"\n                  [class.angular-tree-component-rtl]=\"treeModel.options.rtl\">\n              <tree-node-collection\n                      *ngIf=\"treeModel.roots\"\n                      [nodes]=\"treeModel.roots\"\n                      [treeModel]=\"treeModel\"\n                      [templates]=\"{\n            loadingTemplate: loadingTemplate,\n            treeNodeTemplate: treeNodeTemplate,\n            treeNodeWrapperTemplate: treeNodeWrapperTemplate,\n            treeNodeFullTemplate: treeNodeFullTemplate\n          }\">\n              </tree-node-collection>\n              <tree-node-drop-slot\n                      class=\"empty-tree-drop-slot\"\n                      *ngIf=\"treeModel.isEmptyTree()\"\n                      [dropIndex]=\"0\"\n                      [node]=\"treeModel.virtualRoot\">\n              </tree-node-drop-slot>\n          </div>\n      </tree-viewport>\n  `\n})\nexport class TreeComponent implements OnChanges {\n  _nodes: any[];\n  _options: TreeOptions;\n\n  @ContentChild('loadingTemplate', { static: false }) loadingTemplate: TemplateRef<any>;\n  @ContentChild('treeNodeTemplate', { static: false }) treeNodeTemplate: TemplateRef<any>;\n  @ContentChild('treeNodeWrapperTemplate', { static: false }) treeNodeWrapperTemplate: TemplateRef<any>;\n  @ContentChild('treeNodeFullTemplate', { static: false }) treeNodeFullTemplate: TemplateRef<any>;\n  @ViewChild('viewport', { static: false }) viewportComponent: TreeViewportComponent;\n\n  // Will be handled in ngOnChanges\n  @Input() set nodes(nodes: any[]) {\n  };\n\n  @Input() set options(options: ITreeOptions) {\n  };\n\n  @Input() set focused(value: boolean) {\n    this.treeModel.setFocus(value);\n  }\n\n  @Input() set state(state) {\n    this.treeModel.setState(state);\n  }\n\n  @Output() toggleExpanded;\n  @Output() activate;\n  @Output() deactivate;\n  @Output() nodeActivate;\n  @Output() nodeDeactivate;\n  @Output() select;\n  @Output() deselect;\n  @Output() focus;\n  @Output() blur;\n  @Output() updateData;\n  @Output() initialized;\n  @Output() moveNode;\n  @Output() copyNode;\n  @Output() loadNodeChildren;\n  @Output() changeFilter;\n  @Output() event;\n  @Output() stateChange;\n\n  constructor(\n    public treeModel: TreeModel,\n    public treeDraggedElement: TreeDraggedElement) {\n\n    treeModel.eventNames.forEach((name) => this[name] = new EventEmitter());\n    treeModel.subscribeToState((state) => this.stateChange.emit(state));\n  }\n\n  @HostListener('body: keydown', ['$event'])\n  onKeydown($event) {\n    if (!this.treeModel.isFocused) return;\n    if (['input', 'textarea'].includes(document.activeElement.tagName.toLowerCase())) return;\n\n    const focusedNode = this.treeModel.getFocusedNode();\n\n    this.treeModel.performKeyAction(focusedNode, $event);\n  }\n\n  @HostListener('body: mousedown', ['$event'])\n  onMousedown($event) {\n    function isOutsideClick(startElement: Element, nodeName: string) {\n      return !startElement ? true : startElement.localName === nodeName ? false : isOutsideClick(startElement.parentElement, nodeName);\n    }\n\n    if (isOutsideClick($event.target, 'tree-root')) {\n      this.treeModel.setFocus(false);\n    }\n  }\n\n  ngOnChanges(changes) {\n    if (changes.options || changes.nodes) {\n      this.treeModel.setData({\n        options: changes.options && changes.options.currentValue,\n        nodes: changes.nodes && changes.nodes.currentValue,\n        events: this.pick(this, this.treeModel.eventNames)\n      });\n    }\n  }\n\n  sizeChanged() {\n    this.viewportComponent.setViewport();\n  }\n\n  private pick(object, keys) {\n    return keys.reduce((obj, key) => {\n      if (object && object.hasOwnProperty(key)) {\n        obj[key] = object[key];\n      }\n      return obj;\n    }, {});\n  }\n}\n"]}