From a7eaceb66613ceb54fc55a7fccd9d7a131a12891 Mon Sep 17 00:00:00 2001
From: "Bruce W. Herr II" <bherr@indiana.edu>
Date: Thu, 16 May 2024 15:32:12 -0400
Subject: [PATCH] Improved ontology tree performance (#1257)

* Improved the ontology tree by removing unused functionality that was slowing down performance.

* Remove tests for removed code
---
 projects/ccf-eui/src/app/app.component.ts     |  6 +-
 .../ontology-tree.component.html              | 33 ++--------
 .../ontology-tree.component.spec.ts           | 35 ----------
 .../ontology-tree/ontology-tree.component.ts  | 65 -------------------
 .../ontology-tree/ontology-tree.module.ts     |  2 -
 5 files changed, 6 insertions(+), 135 deletions(-)

diff --git a/projects/ccf-eui/src/app/app.component.ts b/projects/ccf-eui/src/app/app.component.ts
index 6a3dcb39a..29ad0365b 100644
--- a/projects/ccf-eui/src/app/app.component.ts
+++ b/projects/ccf-eui/src/app/app.component.ts
@@ -23,7 +23,7 @@ import { AppRootOverlayContainer } from './core/services/app-root-overlay/app-ro
 import { ThemingService } from './core/services/theming/theming.service';
 import { actionAsFn } from './core/store/action-as-fn';
 import { DataStateSelectors } from './core/store/data/data.selectors';
-import { DataQueryState, DataState } from './core/store/data/data.state';
+import { DataState } from './core/store/data/data.state';
 import { ListResultsState } from './core/store/list-results/list-results.state';
 import { SceneState } from './core/store/scene/scene.state';
 import {
@@ -123,9 +123,7 @@ export class AppComponent implements OnInit {
   }
 
   /** Emits true whenever the overlay spinner should activate. */
-  readonly spinnerActive$ = this.data.queryStatus$.pipe(
-    map(state => state === DataQueryState.Running)
-  );
+  readonly spinnerActive$ = this.data.state$.pipe(map((state) => state?.status !== 'Ready'));
 
   readonly loadingMessage$ = this.data.state$.pipe(map(x => x?.statusMessage));
 
diff --git a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.html b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.html
index ec8f6eb4f..a3ead9820 100644
--- a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.html
+++ b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.html
@@ -3,7 +3,7 @@
 
   <!-- Templates with common structures for inner and leaf nodes -->
   <ng-template #selectableRegion let-node="node">
-    <div class="text" [class.hidden]="node.label === highlightedNode?.label"
+    <div class="text"
       [class.filtered-out]="!occurenceData[node.original.id] && !!termData[node.original.id]"
       [class.unavailable]="!termData[node.original.id]" [class.selected]="isSelected(node)"
       (click)="select($event.ctrlKey, node, true, !isSelected(node))">{{ getNodeLabel(node.label) }}</div>
@@ -11,20 +11,7 @@
 
   <!-- Leaf node template -->
   <mat-tree-node *matTreeNodeDef="let node" class="node leaf-node block" matTreeNodePadding
-    [matTreeNodePaddingIndent]="indent" (mouseleave)="mouseOut(); slider1.reset()">
-
-    <div [style.display]="node.opacity !== -1 ? 'none' : 'block'">
-      <mat-icon class="icon opacity" [style.left]="getLeftIndent(node.level)" [class.fade]="node.visible !== true"
-        (mouseenter)="mouseOver(node)" svgIcon="app:opacity"></mat-icon>
-      <div class="slider" [style.left]="getLeftIndent(node.level)"
-        [class.hidden]="node.label !== highlightedNode?.label">
-        <ccf-opacity-slider #slider1 [visible]="node.visible" [opacity]="node.opacity"
-          (opacityChange)="updateOpacity(node, $event)" (opacityReset)="resetNode(node)"
-          (visibilityToggle)="toggleVisibility(node)">
-        </ccf-opacity-slider>
-      </div>
-    </div>
-
+    [matTreeNodePaddingIndent]="indent">
     <!-- Disabled button used to add equal amount of space as an inner node's button -->
     <div class="non-expandable"></div>
     <div class="node-container">
@@ -40,21 +27,9 @@
 
   <!-- Inner node template -->
   <mat-tree-node *matTreeNodeDef="let node; when: isInnerNode" class="node inner-node block" matTreeNodePadding
-    [matTreeNodePaddingIndent]="indent" (mouseleave)="mouseOut(); slider2.reset()">
-
-    <div [style.display]="node.opacity !== -1 ? 'none' : 'block'">
-      <mat-icon class="icon opacity" [style.left]="getLeftIndent(node.level)" [class.fade]="node.visible !== true"
-        (mouseenter)="mouseOver(node)" svgIcon="app:opacity"></mat-icon>
-      <div class="slider" [style.left]="getLeftIndent(node.level)"
-        [class.hidden]="node.label !== highlightedNode?.label">
-        <ccf-opacity-slider #slider2 [visible]="node.visible" [opacity]="node.opacity"
-          (opacityChange)="updateOpacity(node, $event)" (opacityReset)="resetNode(node)"
-          (visibilityToggle)="toggleVisibility(node)">
-        </ccf-opacity-slider>
-      </div>
-    </div>
+    [matTreeNodePaddingIndent]="indent">
     <div class="node-container">
-      <button class="toggle" [class.hidden]="node.label === highlightedNode?.label" mat-icon-button matTreeNodeToggle
+      <button class="toggle" mat-icon-button matTreeNodeToggle
         attr.aria-label="Toggle {{ node.label }}">
         <mat-icon class="icon font-icon">
           {{ control.isExpanded(node) ? 'expand_less' : 'expand_more' }}
diff --git a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.spec.ts b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.spec.ts
index 7baeadc1d..3b47a77a4 100644
--- a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.spec.ts
+++ b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.spec.ts
@@ -40,11 +40,6 @@ describe('OntologyTreeComponent', () => {
     expect(instance.nodes).toEqual([node1, node2]);
   });
 
-  it('should return left indent', async () => {
-    const { instance } = await shallow.render();
-    expect(instance.getLeftIndent(1)).toEqual('-1.5rem');
-  });
-
   it('should set children', async () => {
     const { instance } = await shallow.render();
     instance.getChildren = ()=>[];
@@ -157,24 +152,6 @@ describe('OntologyTreeComponent', () => {
     expect(instance.isInnerNode(1, flatNode2)).toBeFalse();
   });
 
-  it('should change highlightedNode when moused over', async () => {
-    const { instance } = await shallow.render();
-    instance.mouseOver(flatNode1);
-    expect(instance.highlightedNode).toEqual(flatNode1);
-  });
-
-  it('should remove highlightedNode when moused out', async () => {
-    const { instance } = await shallow.render();
-    instance.mouseOut();
-    expect(instance.highlightedNode).toBeUndefined();
-  });
-
-  it('should reset the node', async () => {
-    const { instance, outputs } = await shallow.render();
-    instance.resetNode(flatNode1);
-    expect(outputs.nodeChanged.emit).toHaveBeenCalled();
-  });
-
   it('should return number of children when getNumResults is called', async () => {
     const { instance } = await shallow.render();
     expect(instance.getCountLabel(flatNode1)).toEqual('');
@@ -188,18 +165,6 @@ describe('OntologyTreeComponent', () => {
     expect(instance.getNodeLabel('test')).toEqual('test');
   });
 
-  it('should update the opacity', async () => {
-    const { instance } = await shallow.render();
-    instance.updateOpacity(flatNode1, 50);
-    expect(flatNode1.opacity).toEqual(50);
-  });
-
-  it('should toggle the visibility', async () => {
-    const { instance } = await shallow.render();
-    instance.toggleVisibility(flatNode1);
-    expect(flatNode1.visible).toBeFalse();
-  });
-
   it('should re-run the gradient display logic on a scroll event', async () => {
     const { instance, find } = await shallow.render();
     const list = find('.ccf-ontology-tree');
diff --git a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.ts b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.ts
index bd81eb2ed..91fbb8b36 100644
--- a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.ts
+++ b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.component.ts
@@ -207,10 +207,6 @@ export class OntologyTreeComponent implements OnInit, OnChanges {
    */
   selectedNodes: FlatNode[] = [];
 
-  highlightedNode: FlatNode | undefined;
-
-
-
   /**
    * Expand the body node when the component is initialized.
    */
@@ -373,67 +369,6 @@ export class OntologyTreeComponent implements OnInit, OnChanges {
     }
   }
 
-  /**
-   * Sets the current highlighted node to the moused over node (reveals opacity slider)
-   *
-   * @param node
-   */
-  mouseOver(node: FlatNode): void {
-    this.highlightedNode = node;
-  }
-
-  /**
-   * Deselects the highlighted node on mouse out
-   */
-  mouseOut(): void {
-    this.highlightedNode = undefined;
-  }
-
-  /**
-   * Sets the opacity of a node
-   *
-   * @param node The node to be updated
-   * @param value Opacity value
-   */
-  updateOpacity(node: FlatNode, value: number | undefined): void {
-    node.opacity = value;
-    this.ga.event('opacity_update', 'ontology_tree', node.label, value);
-    this.nodeChanged.emit(node);
-  }
-
-  /**
-   * Resets node to default opacity and visibility
-   *
-   * @param node The node to be reset
-   */
-  resetNode(node: FlatNode): void {
-    node.opacity = 20;
-    node.visible = true;
-    this.ga.event('node_reset', 'ontology_tree', node.label);
-    this.nodeChanged.emit(node);
-  }
-
-  /**
-   * Toggles visibility of a node
-   *
-   * @param node The node to be toggled
-   */
-  toggleVisibility(node: FlatNode): void {
-    node.visible = node.visible === true ? false : true;
-    this.ga.event('visibility_update', 'ontology_tree', node.label, +node.visible);
-    this.nodeChanged.emit(node);
-  }
-
-  /**
-   * Used to properly set the position of the slider popup on the ontology tree
-   *
-   * @param level Current level of a node in the ontology tree
-   * @returns left indent value
-   */
-  getLeftIndent(level: number): string {
-    return `${level * -1.5}rem`;
-  }
-
   /**
    * Handles the scroll event to detect when scroll is at the bottom.
    *
diff --git a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.module.ts b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.module.ts
index 5648dfaba..a302cf3ca 100644
--- a/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.module.ts
+++ b/projects/ccf-eui/src/app/modules/ontology-exploration/ontology-tree/ontology-tree.module.ts
@@ -6,7 +6,6 @@ import { MatTooltipModule } from '@angular/material/tooltip';
 import { MatTreeModule } from '@angular/material/tree';
 
 import { OntologyTreeComponent } from './ontology-tree.component';
-import { OpacitySliderModule } from 'ccf-shared';
 import { ButtonToggleModule } from '../../../shared/components/button-toggle/button-toggle.module';
 
 @NgModule({
@@ -16,7 +15,6 @@ import { ButtonToggleModule } from '../../../shared/components/button-toggle/but
     MatIconModule,
     MatTooltipModule,
     MatTreeModule,
-    OpacitySliderModule,
     ButtonToggleModule
   ],
   declarations: [OntologyTreeComponent],