fix: don't refetch tab completion on refresh if its already open (closes #163)

readline/instance.go

@@ -96,6 +96,7 @@ type Instance struct {
 	tabCompletionSelect  bool // We may have completions printed, but no selected candidate yet
 	tabCompletionReverse bool // Groups sometimes use this indicator to know how they should handle their index
 	tcUsedY              int  // Comprehensive offset of the currently built completions
+	completionOpen       bool
 
 	// Candidate /  virtual completion string / etc
 	currentComp  []rune // The currently selected item, not yet a real part of the input line.

readline/prompt.go

@@ -79,9 +79,8 @@ func (rl *Instance) RefreshPromptInPlace(prompt string) (err error) {
 	// Prompt data intependent
 	if !rl.modeTabCompletion {
 		rl.tcUsedY = 1
-		// Account for the info line
 	} else if rl.modeTabCompletion && rl.modeAutoFind {
-		rl.tcUsedY = 0
+		rl.tcUsedY = -1 // idk man
 	} else {
 		rl.tcUsedY = 1
 	}

readline/tab.go

@@ -215,7 +215,7 @@ func (rl *Instance) getCompletions() {
 // moveTabCompletionHighlight - This function is in charge of
 // computing the new position in the current completions liste.
 func (rl *Instance) moveTabCompletionHighlight(x, y int) {
-
+	rl.completionOpen = true
 	g := rl.getCurrentGroup()
 
 	// If there is no current group, we leave any current completion mode.

readline/update.go

@@ -11,8 +11,10 @@ func (rl *Instance) updateHelpers() {
 	// Thus overwrites anything having been dirtily added/forced/modified, like rl.SetInfoText()
 	rl.getInfoText()
 	rl.getHintText()
-	if rl.modeTabCompletion {
+	if rl.modeTabCompletion && !rl.completionOpen {
 		rl.getTabCompletion()
+	} else {
+		if rl.completionOpen { rl.completionOpen = false }
 	}
 
 	// We clear everything