SUPPORT-9133: перенос доработок из ervu-dashboard

frontend/src/ts/component/enum/TreeValuesCacheStrategy.ts

@@ -0,0 +1,5 @@
+export enum TreeValuesCacheStrategy {
+  BY_PAGE_OBJECT_ID = "BY_PAGE_OBJECT_ID",
+  BY_OBJECT_NAME = "BY_OBJECT_NAME",
+  BY_CUSTOM_NAME = "BY_CUSTOM_NAME",
+}

frontend/src/ts/component/field/DropdownTreeViewComponent.ts

@@ -2,19 +2,29 @@ import {
   ChangeDetectionStrategy,
   ChangeDetectorRef,
   Component,
-  ElementRef
+  ElementRef,
+  Input
 } from "@angular/core";
 import {
+  AdvancedProperty,
   Event,
   InputControl,
-  UserService,
-  Visible
+  LocalStorageService,
+  NotNull,
+  PageContextHolder,
+  PageObjectUtils,
+  TaskParamsProvider,
+  Visible,
+  WebbpmStorage
 } from "@webbpm/base-package";
 
 import {TreeItemDto} from "../../generated/component/model/TreeItemDto";
 import {TreeItemRpcService} from "../../generated/component/rpc/TreeItemRpcService";
-import {DropdownTreeviewSelectI18n} from "../external/ngx-treeview/dropdown-treeview-select/dropdown-treeview-select-i18n";
+import {
+  DropdownTreeviewSelectI18n
+} from "../external/ngx-treeview/dropdown-treeview-select/dropdown-treeview-select-i18n";
 import {TreeItem, TreeviewItem} from "ngx-treeview";
+import {TreeValuesCacheStrategy} from "../enum/TreeValuesCacheStrategy";
 
 @Component({
              moduleId: module.id,
@@ -26,44 +36,118 @@ import {TreeItem, TreeviewItem} from "ngx-treeview";
              changeDetection: ChangeDetectionStrategy.OnPush
            })
 export class DropdownTreeViewComponent extends InputControl {
+  @Input()
+  @AdvancedProperty()
+  public treeValuesCacheStrategy: TreeValuesCacheStrategy;
+  @Visible("treeValuesCacheStrategy == TreeValuesCacheStrategy.BY_CUSTOM_NAME")
+  @NotNull("treeValuesCacheStrategy == TreeValuesCacheStrategy.BY_CUSTOM_NAME")
+  @AdvancedProperty()
+  public treeValuesCustomName: string;
+  @Visible("false")
+  public cachedValue: TreeItemDto;
 
   public collapseLevel: number;
   public maxHeight: number;
   @Visible("false")
   public items: TreeviewItem[];
   @Visible("false")
-  public value: any;
+  public value: TreeItemDto;
 
   @Visible("false")
   public valueChangeEvent: Event<TreeItemDto> = new Event<TreeItemDto>();
 
   private rpcService: TreeItemRpcService;
 
-  constructor(el: ElementRef, cd: ChangeDetectorRef,
-              private i18n: DropdownTreeviewSelectI18n) {
+  private localStorageService: LocalStorageService;
+  private taskParamsProvider: TaskParamsProvider;
+  private pageContextHolder: PageContextHolder;
+  private webbpmStorage: WebbpmStorage;
+  private storageKey: string;
+  private rootValues: TreeItemDto[];
+
+  constructor(el: ElementRef, cd: ChangeDetectorRef, private i18n: DropdownTreeviewSelectI18n) {
     super(el, cd);
   }
 
   public initialize() {
     super.initialize();
     this.rpcService = this.getScript(TreeItemRpcService);
+
+    this.taskParamsProvider = this.injector.get(TaskParamsProvider);
+    this.localStorageService = this.injector.get(LocalStorageService);
+    this.pageContextHolder = this.injector.get(PageContextHolder);
+    this.webbpmStorage =
+        this.getTreeValuesStorage(this.treeValuesCacheStrategy, this.treeValuesCustomName);
+    this.cachedValue = this.getCachedValue();
     this.loadTreeItems();
   }
 
+  private getTreeValuesStorage(treeValuesCacheStrategy: TreeValuesCacheStrategy,
+                               customKeyName: string) {
+    if (!treeValuesCacheStrategy) {
+      return null;
+    }
+    switch (treeValuesCacheStrategy) {
+      case TreeValuesCacheStrategy.BY_PAGE_OBJECT_ID:
+        this.storageKey = PageObjectUtils.getPageObjectKey(this);
+        return this.readWebbpmStorage(this.storageKey);
+      case TreeValuesCacheStrategy.BY_OBJECT_NAME:
+        this.storageKey = this.getObjectName();
+        return this.readWebbpmStorage(this.storageKey);
+      case TreeValuesCacheStrategy.BY_CUSTOM_NAME:
+        this.storageKey = customKeyName;
+        return this.readWebbpmStorage(this.storageKey);
+      default:
+        throw new Error("Unknown tree values storage type = " + treeValuesCacheStrategy)
+    }
+  }
+
+  readWebbpmStorage(treeStorageKey: string) {
+    if (this.pageContextHolder.isPageInBpmnContext()) {
+      treeStorageKey = treeStorageKey + "$" + this.taskParamsProvider.processInstanceId
+    }
+    return this.localStorageService.readTemporalWebbpmStorage(treeStorageKey);
+  }
+
   @Visible()
   public loadTreeItems(): void {
     this.rpcService.loadTreeData()
         .then((res: TreeItemDto[]) => {
           this.items = res.map(value => new TreeviewItem(this.createTreeItem(value)));
+          this.rootValues = res;
           const rootItem = this.items[0];
-          this.i18n.selectedItem = rootItem;
-          this.value = rootItem ? rootItem.value : rootItem;
+          if (this.cachedValue) {
+            const matchedItem = this.findTreeItemByValue(this.items, this.cachedValue);
+            if (matchedItem) {
+              this.i18n.selectedItem = matchedItem;
+              this.value = matchedItem.value;
+            }
+          }
+          else {
+            this.i18n.selectedItem = rootItem;
+            this.value = rootItem.value;
+          }
           this.doCollapseLevel();
           this.onValueChange(this.value);
           this.cd.markForCheck();
         });
   }
 
+  private findTreeItemByValue(rootItems: TreeviewItem[], valueToFind: any): TreeviewItem | null {
+    for (const item of rootItems) {
+      if (JSON.stringify(item.value) === JSON.stringify(valueToFind)) {
+        return item;
+      }
+      if (item.children) {
+        const found = this.findTreeItemByValue(item.children, valueToFind);
+        if (found) {
+          return found;
+        }
+      }
+    }
+    return null;
+  }
+
   private createTreeItem(treeItemDto: TreeItemDto): TreeItem {
     let treeItem: TreeItem;
     if (treeItemDto) {
@@ -84,6 +168,7 @@ export class DropdownTreeViewComponent extends InputControl {
   }
 
   public onValueChange($event: any) {
+    this.setCachedValue(this.value);
     this.valueChangeEvent.trigger($event);
     this.applyListener(this.changeListeners);
   }
@@ -113,20 +198,51 @@ export class DropdownTreeViewComponent extends InputControl {
     }
   }
 
+  protected setCachedValue(newValue: TreeItemDto): void {
+    if (this.webbpmStorage) {
+      this.webbpmStorage.put(this.storageKey, newValue);
+    }
+  }
+
+  protected getCachedValue(): TreeItemDto {
+    if (this.webbpmStorage) {
+      return this.webbpmStorage.get(this.storageKey);
+    }
+    return null;
+  }
+
   getPresentationValue(): string | number | boolean {
-    return this.value;
+    return this.value ? this.value.label : '';
   }
 
   getValue(): any {
-    return this.value;
+    return this.value ? this.value.id : this.value;
   }
 
-  getValueAsModel(): any {
+  getValueAsModel(): TreeItemDto {
     return this.value ? this.value : null;
   }
 
-  setValue(value: any): any {
-    this.value = value;
+  setValue(value: any): void {
+    const foundValue: TreeItemDto = this.findValueInRootsById(value);
+    if (foundValue) {
+      this.value = foundValue;
+      this.onValueChange(this.value);
+    }
+  }
+
+  private findValueInRootsById(id: any): TreeItemDto {
+    let searchArray: TreeItemDto[] = this.rootValues.slice();
+    while (searchArray.length > 0) {
+      const current = searchArray.shift();
+      if (current.id == id) {
+        return current;
+      }
+      if (current.children && current.children.length > 0) {
+        searchArray.push(...current.children);
+      }
+    }
+    return undefined;
   }
 
   onChange() {
@@ -134,6 +250,11 @@ export class DropdownTreeViewComponent extends InputControl {
     this.valueChangeEvent.trigger(this.value);
   }
 
+  addChangeListener(onChangeFunction: Function): void {
+    super.addChangeListener(onChangeFunction);
+    onChangeFunction();
+  }
+
   subscribeToModelChange() {
     //empty because there is no ngModel here
   }