ontimize-web-ngx
Version:
Ontimize Web framework using Angular 15
79 lines • 11.3 kB
JavaScript
import { BehaviorSubject, map, merge } from 'rxjs';
import { OTranslateService } from '../../services/translate';
export class OTreeDataSource {
get data() {
return this.dataChange.value;
}
set data(value) {
this._treeControl.dataNodes = value;
this.dataChange.next(value);
}
constructor(oTree, _treeControl, injector) {
this.oTree = oTree;
this._treeControl = _treeControl;
this.injector = injector;
this.dataChange = new BehaviorSubject([]);
this.translateService = this.injector.get(OTranslateService);
this._database = this.oTree.daoTree;
}
connect(collectionViewer) {
this._treeControl.expansionModel.changed.subscribe(change => {
if (change.added ||
change.removed) {
this.handleTreeControl(change);
}
});
return merge(collectionViewer.viewChange, this.dataChange).pipe(map(() => {
return this.data;
}));
}
disconnect(collectionViewer) {
this.dataChange.complete();
}
handleTreeControl(change) {
if (change.added) {
change.added.forEach(node => this.oTree.toggleNode(node, true));
}
if (change.removed) {
change.removed
.slice()
.reverse()
.forEach(node => this.oTree.toggleNode(node, false));
}
}
isTreeFlatNode(value) {
return 'level' in value && 'label' in value;
}
updateTree(parentNode, children, expand) {
const treeNode = parentNode.treeNode ? parentNode.treeNode : this.oTree;
const index = this.data.findIndex(node => node.id === parentNode.id);
if (!children || index < 0) {
return;
}
if (expand) {
let level = parentNode.level + 1;
let nodes;
nodes = children.map(child => {
if (this.isTreeFlatNode(child)) {
return child;
}
else {
return treeNode.transformer(child, level, parentNode);
}
});
this.data.splice(index + 1, 0, ...nodes);
if (this.oTree.checklistSelection.isSelected(parentNode)) {
this.oTree.checklistSelection.select(...nodes);
}
}
else {
let count = 0;
for (let i = index + 1; i < this.data.length && this.data[i].level > parentNode.level; i++, count++)
;
this.data.splice(index + 1, count);
}
this.dataChange.next(this.data);
parentNode.isLoading = false;
}
}
//# 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{ CollectionViewer, DataSource, SelectionChange } from '@angular/cdk/collections';\nimport { FlatTreeControl } from '@angular/cdk/tree';\nimport { Injector } from '@angular/core';\nimport { BehaviorSubject, map, merge, Observable } from 'rxjs';\n\nimport { OTranslateService } from '../../services/translate';\nimport { OTreeDao } from './o-tree-dao.service';\nimport { OTreeComponent } from './o-tree.component';\nimport { OTreeFlatNode } from '../../types/tree-flat-node.type';\n\nexport class OTreeDataSource implements DataSource<OTreeFlatNode> {\n  dataChange = new BehaviorSubject<OTreeFlatNode[]>([]);\n  translateService: any;\n  protected _database: OTreeDao;\n\n  get data(): OTreeFlatNode[] {\n    return this.dataChange.value;\n  }\n  set data(value: OTreeFlatNode[]) {\n    this._treeControl.dataNodes = value;\n    this.dataChange.next(value);\n  }\n\n  constructor(\n    private oTree: OTreeComponent,\n    private _treeControl: FlatTreeControl<OTreeFlatNode>,\n    private injector: Injector\n  ) {\n    this.translateService = this.injector.get(OTranslateService);\n    this._database = this.oTree.daoTree;\n  }\n\n  connect(collectionViewer: CollectionViewer): Observable<OTreeFlatNode[]> {\n    this._treeControl.expansionModel.changed.subscribe(change => {\n      if (\n        change.added ||\n        change.removed\n      ) {\n        this.handleTreeControl(change);\n      }\n    });\n\n    return merge(collectionViewer.viewChange, this.dataChange).pipe(map(() => {\n      return this.data;\n    }));\n  }\n\n  disconnect(collectionViewer: CollectionViewer): void {\n    this.dataChange.complete();\n   }\n\n  /** Handle expand/collapse behaviors */\n  handleTreeControl(change: SelectionChange<OTreeFlatNode>) {\n    if (change.added) {\n      change.added.forEach(node => this.oTree.toggleNode(node, true));\n    }\n    if (change.removed) {\n      change.removed\n        .slice()\n        .reverse()\n        .forEach(node => this.oTree.toggleNode(node, false));\n    }\n  }\n\n  isTreeFlatNode(value: any) {\n    return 'level' in value && 'label' in value;\n  }\n\n  updateTree(parentNode: OTreeFlatNode, children: Array<any>, expand: boolean) {\n    const treeNode = parentNode.treeNode ? parentNode.treeNode : this.oTree;\n    const index = this.data.findIndex(node => node.id === parentNode.id);\n\n    if (!children || index < 0) {\n      // If no children, or cannot find the node, no op\n      return;\n    }\n\n    if (expand) {\n      let level = parentNode.level + 1;\n      let nodes: Array<OTreeFlatNode>;\n      nodes = children.map(child => {\n        if (this.isTreeFlatNode(child)) {\n          return child;\n        } else {\n          return treeNode.transformer(child, level, parentNode);\n        }\n      });\n      this.data.splice(index + 1, 0, ...nodes);\n\n      //If parentNode is selected, the children also are selected\n      if (this.oTree.checklistSelection.isSelected(parentNode)) {\n        this.oTree.checklistSelection.select(...nodes)\n      }\n    } else {\n      let count = 0;\n      for (\n        let i = index + 1;\n        i < this.data.length && this.data[i].level > parentNode.level;\n        i++, count++\n      );\n      this.data.splice(index + 1, count);\n    }\n\n    // notify the change\n    this.dataChange.next(this.data);\n    parentNode.isLoading = false;\n\n  }\n\n\n}\n"]}