sysutils/lazygit
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add scrollbars

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This commit is contained in:
Jesse Duffield
2022-04-16 15:27:56 +10:00
parent b838b74801
commit e68093fe99
14 changed files with 270 additions and 116 deletions
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38
pkg/gui/controllers/list_controller.go
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@ -43,14 +43,42 @@ func (self *ListController) HandleNextLine() error {
}
func (self *ListController) HandleScrollLeft() error {
return self.scroll(self.context.GetViewTrait().ScrollLeft)
return self.scrollHorizontal(self.context.GetViewTrait().ScrollLeft)
}
func (self *ListController) HandleScrollRight() error {
return self.scroll(self.context.GetViewTrait().ScrollRight)
return self.scrollHorizontal(self.context.GetViewTrait().ScrollRight)
}
func (self *ListController) scroll(scrollFunc func()) error {
func (self *ListController) HandleScrollUp() error {
self.context.GetViewTrait().ScrollUp()
// we only need to do a line change if our line has been pushed out of the viewport, because
// at the moment much logic depends on the selected line always being visible
if !self.isSelectedLineInViewPort() {
return self.handleLineChange(-1)
}
return nil
}
func (self *ListController) HandleScrollDown() error {
self.context.GetViewTrait().ScrollDown()
if !self.isSelectedLineInViewPort() {
return self.handleLineChange(1)
}
return nil
}
func (self *ListController) isSelectedLineInViewPort() bool {
selectedLineIdx := self.context.GetList().GetSelectedLineIdx()
startIdx, length := self.context.GetViewTrait().ViewPortYBounds()
return selectedLineIdx >= startIdx && selectedLineIdx < startIdx+length
}
func (self *ListController) scrollHorizontal(scrollFunc func()) error {
scrollFunc()
return self.context.HandleFocus()
@ -157,7 +185,7 @@ func (self *ListController) GetMouseKeybindings(opts types.KeybindingsOpts) []*g
ViewName: self.context.GetViewName(),
ToContext: string(self.context.GetKey()),
Key: gocui.MouseWheelUp,
Handler: func(gocui.ViewMouseBindingOpts) error { return self.HandlePrevLine() },
Handler: func(gocui.ViewMouseBindingOpts) error { return self.HandleScrollUp() },
},
{
ViewName: self.context.GetViewName(),
@ -169,7 +197,7 @@ func (self *ListController) GetMouseKeybindings(opts types.KeybindingsOpts) []*g
ViewName: self.context.GetViewName(),
ToContext: string(self.context.GetKey()),
Key: gocui.MouseWheelDown,
Handler: func(gocui.ViewMouseBindingOpts) error { return self.HandleNextLine() },
Handler: func(gocui.ViewMouseBindingOpts) error { return self.HandleScrollDown() },
},
}
}