feat(merge): Rider-style 3-pane conflict editor view

Replace the Base|Ours|Theirs read-only columns + single-conflict result with a
whole-file 3-pane editor: Ours (read-only) | editable Result | Theirs (read-only),
reconstructed from the active file's segments so the panes line up on stable text.

- IBackgroundRenderer paints each conflict block (unresolved=blood, resolved=green)
  across all three panes.
- Result document edits are gated by an IReadOnlySectionProvider (stable text is
  read-only; only conflict regions, tracked via TextAnchors, are editable); edits
  flow back to the owning block.
- Between-pane gutters host inline accept controls (>/< ) positioned per conflict;
  click accepts ours/theirs into the result.
- Proportional synced vertical scroll across the panes; file switcher + change-nav
  arrows (F8 / Shift+F8); active-file 'M conflicts - K resolved' readout.
- Merge block tints + AmberBrush tokens; en/de keys for the new labels.

Seam unchanged. App builds; Ui.Tests 128, Localization.Tests 16.
This commit is contained in:
Mika Kuns
2026-06-19 10:15:12 +02:00
parent 378a92c156
commit c4d1acc75b
6 changed files with 432 additions and 97 deletions

View File

@@ -100,6 +100,14 @@
<SolidColorBrush x:Key="DoneTintBrush" Color="#1F6FA86B" />
<SolidColorBrush x:Key="DoneTintBorderBrush" Color="#4C6FA86B" />
<!-- Merge editor (3-pane conflict resolver) block tints -->
<SolidColorBrush x:Key="MergeOursTintBrush" Color="#1F7C9166" /> <!-- ours side (moss) -->
<SolidColorBrush x:Key="MergeTheirsTintBrush" Color="#1FD4A574" /> <!-- theirs side (amber) -->
<SolidColorBrush x:Key="MergeConflictTintBrush" Color="#28C87060" /> <!-- unresolved conflict (blood) -->
<SolidColorBrush x:Key="MergeConflictEdgeBrush" Color="#80C87060" /> <!-- unresolved conflict gutter edge -->
<SolidColorBrush x:Key="MergeResolvedTintBrush" Color="#206FA86B" /> <!-- resolved conflict (green) -->
<SolidColorBrush x:Key="AmberBrush" Color="#FFD4A574" /> <!-- solid amber (theirs label) -->
<!-- Window-body gradient layers (apply as LinearGradientBrush in the main content Border) -->
<LinearGradientBrush x:Key="DesktopBackgroundBrush" StartPoint="0%,0%" EndPoint="0%,100%">
<GradientStop Offset="0" Color="#FF05070A" />