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Scroll by half page on page up/down

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This commit is contained in:
Brendan Doney 2025-10-13 12:45:53 -04:00
parent 3314ecb66c
commit e7ad788a9f
2 changed files with 40 additions and 4 deletions
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8
pkg/gui/keybindings.go
View file

@ -78,25 +78,25 @@ func (gui *Gui) GetInitialKeybindings() []*Binding {
ViewName: "", ViewName: "",
Key: gocui.KeyPgup, Key: gocui.KeyPgup,
Modifier: gocui.ModNone, Modifier: gocui.ModNone,
Handler: wrappedHandler(gui.scrollUpMain), Handler: wrappedHandler(gui.scrollUpPageMain),
}, },
{ {
ViewName: "", ViewName: "",
Key: gocui.KeyPgdn, Key: gocui.KeyPgdn,
Modifier: gocui.ModNone, Modifier: gocui.ModNone,
Handler: wrappedHandler(gui.scrollDownMain), Handler: wrappedHandler(gui.scrollDownPageMain),
}, },
{ {
ViewName: "", ViewName: "",
Key: gocui.KeyCtrlU, Key: gocui.KeyCtrlU,
Modifier: gocui.ModNone, Modifier: gocui.ModNone,
Handler: wrappedHandler(gui.scrollUpMain), Handler: wrappedHandler(gui.scrollUpPageMain),
}, },
{ {
ViewName: "", ViewName: "",
Key: gocui.KeyCtrlD, Key: gocui.KeyCtrlD,
Modifier: gocui.ModNone, Modifier: gocui.ModNone,
Handler: wrappedHandler(gui.scrollDownMain), Handler: wrappedHandler(gui.scrollDownPageMain),
}, },
{ {
ViewName: "", ViewName: "",

36
pkg/gui/main_panel.go
View file

@ -14,6 +14,19 @@ func (gui *Gui) scrollUpMain() error {
return mainView.SetOrigin(ox, newOy) return mainView.SetOrigin(ox, newOy)
} }
func (gui *Gui) scrollUpPageMain() error {
mainView := gui.Views.Main
mainView.Autoscroll = false
ox, oy := mainView.Origin()
// Scroll up by half a page, capping at the top
_, sizeY := mainView.Size()
deltaY := sizeY / 2
newOy := max(0, oy-deltaY)
return mainView.SetOrigin(ox, newOy)
}
func (gui *Gui) scrollDownMain() error { func (gui *Gui) scrollDownMain() error {
mainView := gui.Views.Main mainView := gui.Views.Main
mainView.Autoscroll = false mainView.Autoscroll = false
@ -33,6 +46,29 @@ func (gui *Gui) scrollDownMain() error {
return mainView.SetOrigin(ox, oy+gui.Config.UserConfig.Gui.ScrollHeight) return mainView.SetOrigin(ox, oy+gui.Config.UserConfig.Gui.ScrollHeight)
} }
func (gui *Gui) scrollDownPageMain() error {
mainView := gui.Views.Main
mainView.Autoscroll = false
ox, oy := mainView.Origin()
// Scroll down by half a page
_, sizeY := mainView.Size()
totalLines := mainView.ViewLinesHeight()
deltaY := sizeY / 2
reservedLines := 0
if !gui.Config.UserConfig.Gui.ScrollPastBottom {
_, sizeY := mainView.Size()
reservedLines = sizeY
}
// Clamp to maximum scroll position if we'd scroll too far
maxScroll := totalLines - reservedLines
newOy := min(oy+deltaY, maxScroll)
return mainView.SetOrigin(ox, newOy)
}
func (gui *Gui) scrollLeftMain(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) scrollLeftMain(g *gocui.Gui, v *gocui.View) error {
mainView := gui.Views.Main mainView := gui.Views.Main
ox, oy := mainView.Origin() ox, oy := mainView.Origin()