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fix: fix runtime error when r.col == 0

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This commit is contained in:
Nao YONASHIRO 2018-02-14 19:50:00 +09:00
parent e1c654e8e9
commit 2a35ceea89
1 changed files with 15 additions and 13 deletions
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16
render.go
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@ -162,16 +162,19 @@ func (r *Render) renderCompletion(buf *Buffer, completions *CompletionManager) {
// Render renders to the console. // Render renders to the console.
func (r *Render) Render(buffer *Buffer, completion *CompletionManager) { func (r *Render) Render(buffer *Buffer, completion *CompletionManager) {
// In situations where a psuedo tty is allocated (e.g. within a docker container),
// window size via TIOCGWINSZ is not immediately available and will result in 0,0 dimensions.
if r.col == 0 {
return
}
// Erasing
r.clear(r.previousCursor)
line := buffer.Text() line := buffer.Text()
prefix := r.getCurrentPrefix() prefix := r.getCurrentPrefix()
cursor := len(prefix) + len(line) cursor := len(prefix) + len(line)
// In situations where a psuedo tty is allocated (e.g. within a docker container),
// window size via TIOCGWINSZ is not immediately available and will result in 0,0 dimensions.
if r.col > 0 {
// Erasing
r.clear(r.previousCursor)
// prepare area // prepare area
_, y := r.toPos(cursor) _, y := r.toPos(cursor)
@ -180,7 +183,6 @@ func (r *Render) Render(buffer *Buffer, completion *CompletionManager) {
r.renderWindowTooSmall() r.renderWindowTooSmall()
return return
} }
}
// Rendering // Rendering
r.renderPrefix() r.renderPrefix()