Each command a side panel handles in the focused main view needed its own
delegation channel: a HasKeybindings getter, an IBaseContext Add method, a
BaseContext field + getter, a baseController nil default, and an attach.go
registration — roughly five touch points per command. With three commands
(click, stage, toggle-patch) that was already a lot of boilerplate, and it
doesn't scale to the discard / copy commands coming next.
Replace the three channels with one: a side panel exposes a single
FocusedMainViewActions interface via GetFocusedMainViewActions (nil when its
diff offers no actions), and the controllers implement that interface
directly. The stage and toggle-patch handlers, already unified to a plain
error return, become one PrimaryAction method whose meaning is the panel's
business (stage for the files panel, patch toggle for the commit panels);
the click handler becomes OnClick. MainViewController is now a thin
dispatcher: fetch the actions from the panel beneath, call the method.
Adding a command is now one interface method, an implementation in the two
or three controllers, and a keybinding — no plumbing.
The toggle-patch channel did double duty as the "this panel builds a custom
patch" signal for the inclusion gutter (shown only beneath a patch-building
panel, not the staging files panel). Collapsing the channels removes that
proxy, so make the classification explicit on DiffMainViewContext, whose
marker method now returns a DiffMainViewType (none / staging / patch-building)
instead of being a bare marker. The gutter shows only beneath a panel whose
type is patch-building (commit files, local commits, sub-commits, stash).
Behavior-preserving.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The focused main view's space binding delegates to the side panel beneath
it, but the two handlers were asymmetric: the patch-toggle handler did its
own re-render and re-established the selection itself, while the staging
handler returned a focusViewName so the dispatcher (stageRange) could do the
reveal-and-focus dance on its behalf. That split blocks collapsing the
per-command handler channels into one, since the two have different return
types.
Make staging match the toggle: GetOnStageFocusedMainView returns plain
error, and the FilesController handler does the post-staging reveal and pane
focus itself. The reveal/select-mode logic the two handlers shared (collapse
a range to a line, preserve the change-line ordinal across the re-render,
re-expand a hunk) is extracted into revealSelectionAfterPrimaryAction, with
mainContextForViewName resolving a main view name to its context. The
dispatcher is now uniform: read the selected range, hand it to whichever
handler the panel registered.
Behavior-preserving.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Pressing space in the commit-files focused main view now toggles the
selected line(s)/hunk into or out of the custom patch, instead of being a
no-op. It's the patch-building counterpart of working-tree staging from
the main view: the selection is resolved to change-line identities the
same way (ChangeLinesInViewRange), then mapped to the patch builder's
per-file line indices and added or removed.
The crux is that the commit's diff is unchanged by a toggle — only the
inclusion set changes — so unlike staging there's no async re-render to
ride. Membership is shown by an on-demand inclusion gutter: a reserved
left column painted with a marker on every change line currently in the
patch, recomputed synchronously after each toggle and on focusing the
main view, over the existing pager output. This is what lets patch
building work over a restructuring pager at all, where the old green
first-char overlay (which rewrites the rendered bytes) can't.
space routes to staging or patch building based on which handler the
panel beneath registers, via a new onTogglePatchFocusedMainView channel
(kept separate from staging because the post-action differs: sync gutter
repaint vs async reveal). Scoped to the commit-files panel for now;
commits/sub-commits/stash and the whole-commit multi-file diff follow.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
After staging or unstaging from the focused main view, focus stayed on the
pane the user acted in even when the side they were acting on moved to the
other pane. Two cases got it wrong:
- Unstaging the first hunk of an only-staged file splits the diff: the main
half flips to show the just-unstaged change, and the staged remainder jumps
to the secondary half — but focus stayed on the main half, away from the
staged content the user was working through.
- Unstaging the last staged hunk from the secondary half empties the staged
side and collapses the split, hiding the secondary half — leaving focus
stranded on a hidden pane.
The rule is the same in both: focus the staged side while it survives. The
stage handler now reports which focused-main pane should hold focus —
the secondary half when unstaging leaves the file split, the main half
otherwise — and the controller re-selects the revealed change in that pane
and focuses it. The split is read from the model, which Refresh has already
updated synchronously by the time the handler returns; the re-render it
queues is what the reveal rides.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Step 1 made the focused main view a staging surface for a single line. This
adds the range and hunk selection the staging view has, so you can stage (or
unstage) a range or a whole hunk in place — `v` starts a range, shift-up/down
extend one, `a` toggles hunk selection — without diving into the staging view.
The selection mode (line / range / hunk, plus sticky-range and "the user turned
hunk mode on themselves") lives on MainContext rather than the controller,
because three places need a pane's mode: the main view controller that drives
it, the focus controller that resets it when you focus the view, and togglePanel
which sets it on the *other* pane. The selected line and the range anchor stay
in the gocui view itself (its cursor and rangeSelectStartY), so the existing
native range-select rendering draws the highlight — no new highlight machinery.
Hunk bounds come from the diff-line metadata (the isChange run around the
cursor, via ChangeBlockBounds), not from a parsed patch, so they work over any
conforming rendering. The up/down keys are mode-aware: hunk mode steps hunk to
hunk, a non-sticky range collapses on a plain move, a sticky range extends.
GetOnStageFocusedMainView now takes the selected view-line range instead of one
line; the files handler collects the change lines in the range and applies a
single patch. It identifies each change line's patch line by scanning the parsed
patch and matching (file line number, deletion?) identities, rather than looking
each number up with PatchLineForLineNumber. That lookup can't tell an addition at
the very start of a hunk from the deletion above it, nor an addition from the
deletion it replaces on a modified line — both of which a range routinely spans.
As a side effect this also fixes staging a change on the first line of a file.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The focused main view already lets you point at a diff line and act on it
(dive into staging, edit it, open it in a PR). This makes it a staging surface
in its own right: press space to stage — or unstage — the selected line without
diving into the separate staging view.
To make that usable, the selection is now shown automatically whenever the main
view holds a diff, anchored on the first change line already visible (so the
view doesn't jump), rather than being toggled on demand from the middle of the
view. That frees space for staging and means there's always a line to act on.
Which contexts show a diff is marked by a new types.DiffMainViewContext, because
"shows a diff" is the right signal, not "is stageable": reflog shows a diff (its
selection drives edit/PR/navigation) but can't be staged, while a branch's log
or the status dashboard show no diff and get no selection at all.
Staging is delegated to the side panel beneath via a GetOnStageFocusedMainView
handler mirroring GetOnClickFocusedMainView, so what "stage" means stays the
panel's concern (the working tree stages/unstages; commits will later add to a
custom patch). The files handler resolves the line's patch identity from the
diff-line metadata, maps it to a patch line, and applies a one-line patch,
choosing stage vs unstage from whether the shown diff is the unstaged or staged
side (diffSplitState).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
I copied all files except dot files (.github and .gitignore), the _examples
folder, and go.mod/go.sum.
At some point we may want to copy the files back to the gocui repo when other
clients (e.g. lazydocker) want to use the newer versions of them.
Can be used for doing additional click handling in list views.
Like the GetOnDoubleClick hook we should try to find a better design for this
than putting it in HasKeybindings and BaseContext, since it is only used by list
contexts.
Co-authored-by: Stefan Haller <stefan@haller-berlin.de>
When this was originally introduced, it handled single clicks on a list entry
(treating them similar to a double-click by checking whether the click was on
the selected entry). Arguably it should have been called OnDoubleClick back then
already; but when we later changed it to do actual double-click detection (see
37197b8e9a), we should have renamed the methods.
This begins a big refactor of moving more code out of the Gui struct into contexts, controllers, and helpers. We also move some code into structs in the
gui package purely for the sake of better encapsulation
