Fix CLN channel View Info modal blanking for disconnected channels (#1606)

The channel information modal renders a block-explorer link from
selNode.settings.blockExplorerUrl, but the pending/inactive channels table
opened the modal without passing selNode. With it undefined, that binding threw
during change detection and blanked every field below it — State, Connected,
Private and the balances all rendered without a value. A disconnected channel
moves to the pending/inactive table, so this is what surfaced on View Info for a
disconnected channel (the symptom in the original report).

Pass selNode from the pending table (matching the open table), and guard the
modal's explorer link (*ngIf + a no-op click when the url is absent) so a missing
selNode can no longer blank the whole dialog. Add a regression test asserting the
pending table passes selNode when opening the modal.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

release-notes/Release-notes-0.15.9.md

@@ -16,6 +16,17 @@ this release should add its entry under the appropriate section below.
   sync, and the list columns read `peer_connected` directly. Regression tests were added for
   both channel tables.
 
+- **Core Lightning: fix the channel View Info modal rendering blank for disconnected channels**
+  ([#1625](https://github.com/Ride-The-Lightning/RTL/pull/1625), fixes
+  [#1606](https://github.com/Ride-The-Lightning/RTL/issues/1606)).
+  The channel information modal renders a block-explorer link from `selNode.settings.blockExplorerUrl`,
+  but the pending/inactive channels table opened the modal without passing `selNode`. With it
+  undefined, that binding threw during change detection and blanked every field below it — State,
+  Connected, Private and the balances all showed no value. Because a disconnected channel moves to
+  the pending/inactive table, this is exactly what was seen on "View Info" for a disconnected
+  channel. The pending table now passes `selNode` (matching the open table), and the modal guards
+  the explorer link so a missing `selNode` can no longer blank the dialog.
+
 ## Developer Tooling
 
 - **Added a Core Lightning node to the regtest docker fixture**

src/app/cln/peers-channels/channels/channel-information-modal/channel-information.component.html

@@ -43,7 +43,7 @@
             <h4 fxLayoutAlign="start" class="font-bold-500">Funding Transaction ID</h4>
             <span class="foreground-secondary-text">
               {{channel.funding_txid}}
-              <fa-icon matTooltip="{{'Link to ' + selNode.settings.blockExplorerUrl}}" class="ml-1 fa-icon-primary" [icon]="faUpRightFromSquare" (click)="onExplorerClicked()"/>
+              <fa-icon *ngIf="selNode?.settings?.blockExplorerUrl" matTooltip="{{'Link to ' + selNode?.settings?.blockExplorerUrl}}" class="ml-1 fa-icon-primary" [icon]="faUpRightFromSquare" (click)="onExplorerClicked()"/>
             </span>
           </div>
         </div>

src/app/cln/peers-channels/channels/channel-information-modal/channel-information.component.ts

@@ -57,6 +57,7 @@ export class CLNChannelInformationComponent implements OnInit {
   }
 
   onExplorerClicked() {
+    if (!this.selNode?.settings?.blockExplorerUrl) { return; }
     window.open(this.selNode.settings.blockExplorerUrl + '/tx/' + this.channel.funding_txid, '_blank');
   }
 

src/app/cln/peers-channels/channels/channels-tables/channel-pending-table/channel-pending-table.component.spec.ts

@@ -1,5 +1,5 @@
 import { waitForAsync, ComponentFixture, TestBed } from '@angular/core/testing';
-import { StoreModule } from '@ngrx/store';
+import { Store, StoreModule } from '@ngrx/store';
 
 import { RootReducer } from '../../../../../store/rtl.reducers';
 import { LNDReducer } from '../../../../../lnd/store/lnd.reducers';
@@ -73,6 +73,20 @@ describe('CLNChannelPendingTableComponent', () => {
     expect(connectedCellText()).toBe('Disconnected');
   });
 
+  // Issue #1606: the channel information modal reads selNode.settings.blockExplorerUrl, so the
+  // pending table must pass selNode when opening it. Without it the modal throws mid-render and
+  // blanks State/Connected/balances for disconnected channels (which live in this table).
+  it('should pass selNode when opening the channel information modal', () => {
+    const store = TestBed.inject(Store);
+    const dispatchSpy = spyOn(store, 'dispatch');
+    const selNode: any = { settings: { blockExplorerUrl: 'https://mempool.space' } };
+    component.selNode = selNode;
+    component.onChannelClick({ short_channel_id: '120x1x0', peer_connected: false } as any, {} as any);
+    expect(dispatchSpy).toHaveBeenCalled();
+    const action: any = dispatchSpy.calls.mostRecent().args[0];
+    expect(action.payload.data.selNode).toBe(selNode);
+  });
+
   afterEach(() => {
     TestBed.resetTestingModule();
   });

src/app/cln/peers-channels/channels/channels-tables/channel-pending-table/channel-pending-table.component.ts

@@ -20,6 +20,7 @@ import { openAlert, openConfirmation } from '../../../../../store/rtl.actions';
 import { RTLState } from '../../../../../store/rtl.state';
 import { closeChannel } from '../../../../store/cln.actions';
 import { channels, clnPageSettings, nodeInfoAndBalanceAndNumPeers } from '../../../../store/cln.selector';
+import { rootSelectedNode } from '../../../../../store/rtl.selector';
 import { ColumnDefinition, PageSettings, TableSetting } from '../../../../../shared/models/pageSettings';
 import { CamelCaseWithReplacePipe } from '../../../../../shared/pipes/app.pipe';
 import { MAT_SELECT_CONFIG } from '@angular/material/select';
@@ -62,6 +63,7 @@ export class CLNChannelPendingTableComponent implements OnInit, AfterViewInit, O
   public errorMessage = '';
   public apiCallStatus: ApiCallStatusPayload | null = null;
   public apiCallStatusEnum = APICallStatusEnum;
+  public selNode: Node | null = null;
   private unSubs: Array<Subject<void>> = [new Subject(), new Subject(), new Subject(), new Subject(), new Subject(), new Subject()];
 
   constructor(private logger: LoggerService, private store: Store<RTLState>, private rtlEffects: RTLEffects, private commonService: CommonService, private camelCaseWithReplace: CamelCaseWithReplacePipe) {
@@ -109,6 +111,10 @@ export class CLNChannelPendingTableComponent implements OnInit, AfterViewInit, O
         }
         this.logger.info(channelsSeletor);
       });
+    this.store.select(rootSelectedNode).pipe(takeUntil(this.unSubs[4])).
+      subscribe((nodeSettings) => {
+        this.selNode = nodeSettings;
+      });
   }
 
   ngAfterViewInit() {
@@ -133,6 +139,7 @@ export class CLNChannelPendingTableComponent implements OnInit, AfterViewInit, O
       payload: {
         data: {
           channel: selChannel,
+          selNode: this.selNode,
           showCopy: true,
           component: CLNChannelInformationComponent
         }