fix decision first-click + editor reveal via retained reader nav

Two reveal-on-open bugs:

Decisions opened only on the second click (T-196): the detail view
subscribed in didChangeDependencies, which runs after the tab is
revealed, so the broadcast 'selection' that triggered the reveal was
already gone. Hoist the back/forward history out of per-view State into
a retained per-reader ReaderNav (kernel ChangeNotifier in a
ReaderNavRegistry, D-81). The nav records selections, emits 'load' (the
single channel readers display from), and survives mount/unmount — the
reader grabs nav.current on mount, so the first selection lands. Both
the markdown and decisions readers move to this model; the per-view
ReaderHistoryMixin and the markdown post-frame forward hack are gone.

The editor pane never opened (T-197): EditorExtension contributed a
workspace tab but nothing activated it on editor.open. Add an activate()
that reveals the tab on editor.opened / editor.active-changed; the
view's hydrate() pulls the active buffer on mount.

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

This commit is contained in:

jpmschweitzer

2026-06-01 12:45:48 +02:00

co-authored by

Claude Opus 4.8

parent 1db65f8481

commit 0eb7b0df2f

17 changed files with 499 additions and 460 deletions

									
										lib/kernel/kernel.dart
									
		+1
		
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				@@ -41,6 +41,7 @@ export 'src/os.dart';

				export 'src/panels/arrangement.dart';

				export 'src/project.dart';

				export 'src/quick_open.dart';

				export 'src/reader_nav.dart';

				export 'src/recent_files.dart';

				export 'src/scheduler.dart';

				export 'src/text_zoom.dart';