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fix(viewport): Guard against negative string repetitions (#196)

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Maas Lalani 2022-07-21 14:39:17 -04:00 committed by GitHub
parent e49b5573bc
commit e32dcde62a
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1 changed files with 4 additions and 4 deletions
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8
viewport/viewport.go
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@ -10,7 +10,7 @@ import (
)
// New returns a new model with the given width and height as well as default
// keymappings.
// key mappings.
func New(width, height int) (m Model) {
m.Width = width
m.Height = height
@ -237,7 +237,7 @@ func Sync(m Model) tea.Cmd {
}
// 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.
// number of lines. Use Model.ViewDown to get the lines that should be rendered.
// For example:
//
// lines := model.ViewDown(1)
@ -344,10 +344,10 @@ func (m Model) updateAsModel(msg tea.Msg) (Model, tea.Cmd) {
func (m Model) View() string {
if m.HighPerformanceRendering {
// Just send newlines since we're going to be rendering the actual
// content seprately. We still need to send something that equals the
// content separately. We still need to send something that equals the
// height of this view so that the Bubble Tea standard renderer can
// position anything below this view properly.
return strings.Repeat("\n", m.Height-1)
return strings.Repeat("\n", max(0, m.Height-1))
}
lines := m.visibleLines()