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mirror of https://github.com/jesseduffield/lazygit.git synced 2025-03-23 21:51:07 +02:00
lazygit/pkg/gui/context/merge_conflicts_context.go
Jesse Duffield f3eb180f75 Standardise display of range selection across views
We're not fully standardising here: different contexts can store their range state however
they like. What we are standardising on is that now the view is always responsible for
highlighting the selected lines, meaning the context/controller needs to tell the view
where the range start is.

Two convenient benefits from this change:
1) we no longer need bespoke code in integration tests for asserting on selected lines because
we can just ask the view
2) line selection in staging/patch-building/merge-conflicts views now look the same as in
list views i.e. the highlight applies to the whole line (including trailing space)

I also noticed a bug with merge conflicts not rendering the selection on focus though I suspect
it wasn't a bug with any real consequences when the view wasn't displaying the selection.

I'm going to scrap the selectedRangeBgColor config and just let it use the single line
background color. Hopefully nobody cares, but there's really no need for an extra config.
2024-01-19 10:47:21 +11:00

122 lines
2.8 KiB
Go

package context
import (
"math"
"github.com/jesseduffield/lazygit/pkg/gui/mergeconflicts"
"github.com/jesseduffield/lazygit/pkg/gui/types"
"github.com/sasha-s/go-deadlock"
)
type MergeConflictsContext struct {
types.Context
viewModel *ConflictsViewModel
c *ContextCommon
mutex *deadlock.Mutex
}
type ConflictsViewModel struct {
state *mergeconflicts.State
// userVerticalScrolling tells us if the user has started scrolling through the file themselves
// in which case we won't auto-scroll to a conflict.
userVerticalScrolling bool
}
func NewMergeConflictsContext(
c *ContextCommon,
) *MergeConflictsContext {
viewModel := &ConflictsViewModel{
state: mergeconflicts.NewState(),
userVerticalScrolling: false,
}
return &MergeConflictsContext{
viewModel: viewModel,
mutex: &deadlock.Mutex{},
Context: NewSimpleContext(
NewBaseContext(NewBaseContextOpts{
Kind: types.MAIN_CONTEXT,
View: c.Views().MergeConflicts,
WindowName: "main",
Key: MERGE_CONFLICTS_CONTEXT_KEY,
Focusable: true,
HighlightOnFocus: true,
}),
),
c: c,
}
}
func (self *MergeConflictsContext) GetState() *mergeconflicts.State {
return self.viewModel.state
}
func (self *MergeConflictsContext) SetState(state *mergeconflicts.State) {
self.viewModel.state = state
}
func (self *MergeConflictsContext) GetMutex() *deadlock.Mutex {
return self.mutex
}
func (self *MergeConflictsContext) SetUserScrolling(isScrolling bool) {
self.viewModel.userVerticalScrolling = isScrolling
}
func (self *MergeConflictsContext) IsUserScrolling() bool {
return self.viewModel.userVerticalScrolling
}
func (self *MergeConflictsContext) RenderAndFocus() error {
self.setContent()
self.FocusSelection()
self.c.Render()
return nil
}
func (self *MergeConflictsContext) Render() error {
self.setContent()
self.c.Render()
return nil
}
func (self *MergeConflictsContext) GetContentToRender() string {
if self.GetState() == nil {
return ""
}
return mergeconflicts.ColoredConflictFile(self.GetState())
}
func (self *MergeConflictsContext) setContent() {
self.GetView().SetContent(self.GetContentToRender())
}
func (self *MergeConflictsContext) FocusSelection() {
if !self.IsUserScrolling() {
_ = self.GetView().SetOriginY(self.GetOriginY())
}
self.SetSelectedLineRange()
}
func (self *MergeConflictsContext) SetSelectedLineRange() {
startIdx, endIdx := self.GetState().GetSelectedRange()
view := self.GetView()
originY := view.OriginY()
// As far as the view is concerned, we are always selecting a range
view.SetRangeSelectStart(startIdx)
view.SetCursorY(endIdx - originY)
}
func (self *MergeConflictsContext) GetOriginY() int {
view := self.GetView()
conflictMiddle := self.GetState().GetConflictMiddle()
return int(math.Max(0, float64(conflictMiddle-(view.Height()/2))))
}