Browser Back closes the top overlay instead of navigating - #604
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Back both closed a widget-settings dialog and changed the page, abandoning an in-progress layout edit. Every dialog and registered bottom sheet now gets a history entry pushed in front of it at the URL the app is already on, so a Back pops an identical URL and closes exactly one overlay; with nothing left it navigates as before. An overlay closed by Esc, a button or the backdrop takes its entry down with it. Material's own closeOnNavigation had to move out of the way: it disposes the overlay from the CDK's location listener before this service sees the pop, and the orphaned guard entry then unwound into a second Back that changed the page anyway. Closing on a real route change stays this service's job. Closes #393
The 1.5.0 bump treated a settings relabel as a feature. It was a fix, and the cycle that PR #600 landed in was already open at 1.4.1.
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📝 WalkthroughWalkthroughThe change adds history-aware browser Back handling for Material dialogs and bottom sheets. Components register bottom sheets with the guard. Bootstrap disables automatic navigation closing. The widget options dialog no longer requests navigation closing. Project version metadata changes from ChangesOverlay navigation guard
Release version metadata
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟡 Moderate · up to The change makes Back dismiss overlays before navigating, but an imperative route change can leave a stale overlay history entry that causes a later Back to appear ineffective and require an extra press. Merge should wait for this bounded navigation issue to be fixed or explicitly accepted. Sequence Diagram(s)sequenceDiagram
participant Browser
participant RouterOverlayNavigationService
participant Overlay
participant Router
Browser->>RouterOverlayNavigationService: popstate
RouterOverlayNavigationService->>Overlay: close top guarded overlay
Overlay-->>RouterOverlayNavigationService: dismissal result
RouterOverlayNavigationService->>Browser: unwind overlay history entry
Router->>RouterOverlayNavigationService: NavigationStart
RouterOverlayNavigationService->>Overlay: clear overlays on genuine route change
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✅ Passed checks (3 passed)
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Inline comments:
In `@src/app/core/services/router-overlay-navigation.service.ts`:
- Around line 65-70: Update the NavigationStart handling in
RouterOverlayNavigationService to mark guarded overlay stack entries as
route-cleared before dismissing dialogs or bottom sheets, so their
afterClosed()/release() callbacks cannot call window.history.back() during
imperative navigation. Add a test covering an imperative NavigationStart
followed by afterClosed(), asserting the guard entry is released without
navigating back.
- Around line 121-126: Update the lower-overlay close handling in the stack-pop
flow and the related onPopState() logic so independently closed overlays also
invalidate or remove their browser history entries. Track guard entries in
history state or otherwise unwind the corresponding same-URL entry, ensuring
Back never stops on a stale overlay entry and still preserves correct navigation
for remaining overlays.
In `@src/main.ts`:
- Around line 107-109: Update the existing MAT_DIALOG_DEFAULT_OPTIONS provider
to include closeOnNavigation: false alongside backdropClass and delayFocusTrap,
then remove the duplicate dialog-options registration from
OVERLAY_BACK_GUARD_PROVIDERS while retaining its
MAT_BOTTOM_SHEET_DEFAULT_OPTIONS spread. Add or update a test to verify the
final injected dialog options preserve all three values.
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.bumpversion.cfgVERSIONpackage.jsonsrc/app/core/components/action-menu/action-menu.component.tssrc/app/core/components/toolbar/toolbar.component.spec.tssrc/app/core/components/toolbar/toolbar.component.tssrc/app/core/services/router-overlay-navigation.service.spec.tssrc/app/core/services/router-overlay-navigation.service.tssrc/main.ts
…igation The per-call closeOnNavigation overrode the global default, so Material still disposed this dialog from its own location listener and the guard entry behind it unwound into a page change — the reported case, and the one the guard exists for.
Widget settings still navigated on Back — fixed in 69f249bReported from the deployed build: Back on the numeric widget settings dialog still changed the page, even though the Notifications dialog behaved.
My earlier verification used the Notifications dialog as a stand-in for "a dialog" and passed, which is exactly why this survived. The browser check now drives the reported path itself: enter edit mode, tap the widget to raise its action menu, open Settings, press Back. Four assertions — edit mode entered, dialog opens, Back closes it, hash stays
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…w route A second provider for MAT_DIALOG_DEFAULT_OPTIONS replaces the first rather than merging, so registering closeOnNavigation on its own dropped the app's backdrop class and focus settings. Both sets now live in one provider beside the service that needs one of them. A real navigation also closed overlays while their guard entries stood: each release then called history.back() and took the user off the route they had just asked for. The entries are dropped before anything is closed.
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Back on an open widget-settings dialog closed the dialog and changed the page, abandoning an in-progress layout edit. It should close the overlay and leave the edit alone, and only navigate once nothing is open.
Every dialog, and every bottom sheet that registers itself, gets a history entry pushed in front of it at the URL the app is already on. A Back then pops an entry whose URL is identical — a same-URL navigation the router ignores — and the pop closes exactly one overlay, topmost first. With nothing of ours left on the stack a pop is the page's own and navigates as before. An overlay closed by Esc, a button or the backdrop takes its entry down with it, so a later Back is never swallowed by an entry standing in front of nothing.
The part that is not obvious from the issue: Material's
closeOnNavigationhad to move out of the way. It defaults to true and disposes the overlay from inside the CDK's own location listener, which runs before this service sees the pop. The overlay vanished, and the guard entry it stood behind was then unwound into a secondhistory.back()— so Back closed the dialog and changed the page, exactly the reported symptom, now with extra steps.OVERLAY_BACK_GUARD_PROVIDERSturns it off for both overlay types; closing on a genuine route change stays this service's job, which it already did.Embed mode is exempt: Skip runs in an iframe inside the Freeboard panel, where its history entries land in the host page's session history.
Verification
Ten unit specs cover the state machine — one overlay per Back, topmost first, the pass-through once the stack is empty, the Esc/backdrop unwind, the embed exemption, and a guard on the providers, whose removal silently restores the old behavior.
The history mechanics need a real browser, so I drove a production build against the mock Signal K server and asserted nine facts: the dialog opens, Back closes it, the hash stays
#/page/1, a second Back navigates to#/page/0, the bottom sheet opens, Back dismisses it, the hash holds, Esc closes the dialog, and Back after Esc navigates. All nine pass. That run is also what caught thecloseOnNavigationinteraction — the unit specs passed while the browser still navigated.npm run cigreen: lint, snc, 2125 tests, MCP schema.Also here
VERSIONreturns to 1.4.1 (withpackage.json,.bumpversion.cfgand the dashboard schema'sskipVersion). The 1.5.0 bump treated a settings relabel as a feature; it was a fix, and the cycle was already open at 1.4.1. The draftv1.5.0+2release should be deleted so it cannot be published — I have not touched releases.Closes #393
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User impact
Implementation
RouterOverlayNavigationService.guardOverlay()for bottom sheets.OVERLAY_DEFAULT_OPTIONS_PROVIDERS.closeOnNavigationoverride.1.4.1.v1.5.0+2release.