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Merge pull request #40 from c-bata/orisano/fix#39 

fix runtime error when r.col == 0
This commit is contained in:
Masashi SHIBATA 2018-02-14 20:06:21 +09:00 committed by GitHub
parent e1c654e8e9 fbefae2e24
commit 65b515231d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 13 deletions
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28
render.go
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@ -162,24 +162,26 @@ func (r *Render) renderCompletion(buf *Buffer, completions *CompletionManager) {
// Render renders to the console.
func (r *Render) Render(buffer *Buffer, completion *CompletionManager) {
// In situations where a pseudo 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()
prefix := r.getCurrentPrefix()
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
_, y := r.toPos(cursor)
// prepare area
_, y := r.toPos(cursor)
h := y + 1 + int(completion.max)
if h > int(r.row) || completionMargin > int(r.col) {
r.renderWindowTooSmall()
return
}
h := y + 1 + int(completion.max)
if h > int(r.row) || completionMargin > int(r.col) {
r.renderWindowTooSmall()
return
}
// Rendering