Remove redundant viewport commands

This commit is contained in:
Christian Rocha 2020-07-17 18:22:51 -04:00
parent 2f909886c1
commit dbb1d93970
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GPG Key ID: D6CC7A16E5878018

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@ -218,9 +218,9 @@ func Sync(m Model) tea.Cmd {
)
}
// ViewDown is a high performance command that moves the viewport up by one
// viewport height. Use Model.ViewDown to get the lines that should be
// rendered. For example:
// ViewDown is a high performance command that moves the viewport up by a given
// numer of lines. Use Model.ViewDown to get the lines that should be rendered.
// For example:
//
// lines := model.ViewDown(1)
// cmd := ViewDown(m, lines)
@ -232,8 +232,8 @@ func ViewDown(m Model, lines []string) tea.Cmd {
return tea.ScrollDown(lines, m.YPosition, m.YPosition+m.Height)
}
// ViewUp is a high performance command the moves the viewport down by one
// viewport height. Use Model.ViewDown to get the lines that should be
// ViewUp is a high performance command the moves the viewport down by a given
// number of lines height. Use Model.ViewDown to get the lines that should be
// rendered.
func ViewUp(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
@ -242,46 +242,6 @@ func ViewUp(m Model, lines []string) tea.Cmd {
return tea.ScrollUp(lines, m.YPosition, m.YPosition+m.Height)
}
// HalfViewDown is a high performance command the moves the viewport down by
// half of the height of the viewport. Use Model.HalfViewDown to get the lines
// that should be rendered.
func HalfViewDown(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
return nil
}
return tea.ScrollDown(lines, m.YPosition, m.YPosition+m.Height)
}
// HalfViewUp is a high performance command the moves the viewport up by
// half of the height of the viewport. Use Model.HalfViewUp to get the lines
// that should be rendered.
func HalfViewUp(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
return nil
}
return tea.ScrollUp(lines, m.YPosition, m.YPosition+m.Height)
}
// LineDown is a high performance command the moves the viewport down by
// a given number of lines. Use Model.LineDown to get the lines that should be
// rendered.
func LineDown(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
return nil
}
return tea.ScrollDown(lines, m.YPosition, m.YPosition+m.Height)
}
// LineDown is a high performance command the moves the viewport up by a given
// number of lines. Use Model.LineDown to get the lines that should be
// rendered.
func LineUp(m Model, lines []string) tea.Cmd {
if len(lines) == 0 {
return nil
}
return tea.ScrollUp(lines, m.YPosition, m.YPosition+m.Height)
}
// UPDATE
// Update runs the update loop with default keybindings similar to popular
@ -318,14 +278,14 @@ func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
case "d":
lines := m.HalfViewDown()
if m.HighPerformanceRendering {
cmd = HalfViewDown(m, lines)
cmd = ViewDown(m, lines)
}
// Up half page
case "u":
lines := m.HalfViewUp()
if m.HighPerformanceRendering {
cmd = HalfViewUp(m, lines)
cmd = ViewUp(m, lines)
}
// Down one line
@ -334,7 +294,7 @@ func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
case "j":
lines := m.LineDown(1)
if m.HighPerformanceRendering {
cmd = LineDown(m, lines)
cmd = ViewDown(m, lines)
}
// Up one line
@ -343,7 +303,7 @@ func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
case "k":
lines := m.LineUp(1)
if m.HighPerformanceRendering {
cmd = LineUp(m, lines)
cmd = ViewUp(m, lines)
}
}
@ -353,13 +313,13 @@ func Update(msg tea.Msg, m Model) (Model, tea.Cmd) {
case tea.MouseWheelUp:
lines := m.LineUp(3)
if m.HighPerformanceRendering {
cmd = LineUp(m, lines)
cmd = ViewUp(m, lines)
}
case tea.MouseWheelDown:
lines := m.LineDown(3)
if m.HighPerformanceRendering {
cmd = LineDown(m, lines)
cmd = ViewDown(m, lines)
}
}
}