Highlight matching transactions in the block visualizations

frontend/src/app/components/block-overview-graph/block-overview-graph.component.ts

@@ -6,6 +6,8 @@ import TxSprite from './tx-sprite';
 import TxView from './tx-view';
 import { Position } from './sprite-types';
 import { Price } from '../../services/price.service';
+import { StateService } from '../../services/state.service';
+import { Subscription } from 'rxjs';
 
 @Component({
   selector: 'app-block-overview-graph',
@@ -44,16 +46,25 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
   scene: BlockScene;
   hoverTx: TxView | void;
   selectedTx: TxView | void;
+  highlightTx: TxView | void;
   mirrorTx: TxView | void;
   tooltipPosition: Position;
 
   readyNextFrame = false;
 
+  searchText: string;
+  searchSubscription: Subscription;
+
   constructor(
     readonly ngZone: NgZone,
     readonly elRef: ElementRef,
+    private stateService: StateService,
   ) {
     this.vertexArray = new FastVertexArray(512, TxSprite.dataSize);
+    this.searchSubscription = this.stateService.searchText$.subscribe((text) => {
+      this.searchText = text;
+      this.updateSearchHighlight();
+    });
   }
 
   ngAfterViewInit(): void {
@@ -109,6 +120,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
       this.scene.setup(transactions);
       this.readyNextFrame = true;
       this.start();
+      this.updateSearchHighlight();
     }
   }
 
@@ -116,6 +128,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
     if (this.scene) {
       this.scene.enter(transactions, direction);
       this.start();
+      this.updateSearchHighlight();
     }
   }
 
@@ -123,6 +136,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
     if (this.scene) {
       this.scene.exit(direction);
       this.start();
+      this.updateSearchHighlight();
     }
   }
 
@@ -130,6 +144,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
     if (this.scene) {
       this.scene.replace(transactions || [], direction, sort);
       this.start();
+      this.updateSearchHighlight();
     }
   }
 
@@ -137,6 +152,7 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
     if (this.scene) {
       this.scene.update(add, remove, change, direction, resetLayout);
       this.start();
+      this.updateSearchHighlight();
     }
   }
 
@@ -406,6 +422,19 @@ export class BlockOverviewGraphComponent implements AfterViewInit, OnDestroy, On
     }
   }
 
+  updateSearchHighlight(): void {
+    if (this.highlightTx && this.highlightTx.txid !== this.searchText && this.scene) {
+      this.scene.setHighlight(this.highlightTx, false);
+      this.start();
+    } else if (this.searchText && this.searchText.length === 64) {
+      this.highlightTx = this.scene.txs[this.searchText];
+      if (this.highlightTx) {
+        this.scene.setHighlight(this.highlightTx, true);
+        this.start();
+      }
+    }
+  }
+
   setHighlightingEnabled(enabled: boolean): void {
     if (this.scene) {
       this.scene.setHighlighting(enabled);

frontend/src/app/components/block-overview-graph/block-scene.ts

@@ -215,6 +215,10 @@ export default class BlockScene {
     this.animateUntil = Math.max(this.animateUntil, tx.setHover(value));
   }
 
+  setHighlight(tx: TxView, value: boolean): void {
+    this.animateUntil = Math.max(this.animateUntil, tx.setHighlight(value));
+  }
+
   private init({ width, height, resolution, blockLimit, orientation, flip, vertexArray, highlighting, pixelAlign }:
       { width: number, height: number, resolution: number, blockLimit: number,
         orientation: string, flip: boolean, vertexArray: FastVertexArray, highlighting: boolean, pixelAlign: boolean }

frontend/src/app/components/block-overview-graph/tx-view.ts

@@ -7,6 +7,7 @@ import BlockScene from './block-scene';
 
 const hoverTransitionTime = 300;
 const defaultHoverColor = hexToColor('1bd8f4');
+const defaultHighlightColor = hexToColor('800080');
 
 const feeColors = mempoolFeeColors.map(hexToColor);
 const auditFeeColors = feeColors.map((color) => darken(desaturate(color, 0.3), 0.9));
@@ -44,8 +45,10 @@ export default class TxView implements TransactionStripped {
   initialised: boolean;
   vertexArray: FastVertexArray;
   hover: boolean;
+  highlight: boolean;
   sprite: TxSprite;
   hoverColor: Color | void;
+  highlightColor: Color | void;
 
   screenPosition: Square;
   gridPosition: Square | void;
@@ -150,8 +153,40 @@ export default class TxView implements TransactionStripped {
     } else {
       this.hover = false;
       this.hoverColor = null;
-      if (this.sprite) {
-        this.sprite.resume(hoverTransitionTime);
+      if (this.highlight) {
+        this.setHighlight(true, this.highlightColor);
+      } else {
+        if (this.sprite) {
+          this.sprite.resume(hoverTransitionTime);
+        }
+      }
+    }
+    this.dirty = false;
+    return performance.now() + hoverTransitionTime;
+  }
+
+  // Temporarily override the tx color
+  // returns minimum transition end time
+  setHighlight(highlightOn: boolean, color: Color | void = defaultHighlightColor): number {
+    if (highlightOn) {
+      this.highlight = true;
+      this.highlightColor = color;
+
+      this.sprite.update({
+        ...this.highlightColor,
+        duration: hoverTransitionTime,
+        adjust: false,
+        temp: true
+      });
+    } else {
+      this.highlight = false;
+      this.highlightColor = null;
+      if (this.hover) {
+        this.setHover(true, this.hoverColor);
+      } else {
+        if (this.sprite) {
+          this.sprite.resume(hoverTransitionTime);
+        }
       }
     }
     this.dirty = false;

frontend/src/app/components/search-form/search-form.component.ts

@@ -80,6 +80,9 @@ export class SearchFormComponent implements OnInit {
         }
         return text.trim();
       }),
+      tap((text) => {
+        this.stateService.searchText$.next(text);
+      }),
       distinctUntilChanged(),
     );
 

frontend/src/app/services/state.service.ts

@@ -129,6 +129,7 @@ export class StateService {
 
   markBlock$ = new BehaviorSubject<MarkBlockState>({});
   keyNavigation$ = new Subject<KeyboardEvent>();
+  searchText$ = new BehaviorSubject<string>('');
 
   blockScrolling$: Subject<boolean> = new Subject<boolean>();
   resetScroll$: Subject<boolean> = new Subject<boolean>();