mirror of https://github.com/Hilbis/Hilbish
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
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package readline
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import "regexp"
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// SetInfoText - a nasty function to force writing a new info text. It does not update helpers, it just renders
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// them, so the info will survive until the helpers (thus including the info) will be updated/recomputed.
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func (rl *Instance) SetInfoText(s string) {
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rl.infoText = []rune(s)
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rl.renderHelpers()
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}
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func (rl *Instance) getInfoText() {
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if !rl.modeAutoFind && !rl.modeTabFind {
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// Return if no infos provided by the user/engine
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if rl.InfoText == nil {
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rl.resetInfoText()
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return
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}
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// The info text also works with the virtual completion line system.
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// This way, the info is also refreshed depending on what we are pointing
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// at with our cursor.
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rl.infoText = rl.InfoText(rl.getCompletionLine())
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}
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}
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// writeInfoText - only writes the info text and computes its offsets.
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func (rl *Instance) writeInfoText() {
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if len(rl.infoText) == 0 {
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rl.infoY = 0
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return
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}
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width := GetTermWidth()
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// Wraps the line, and counts the number of newlines in the string,
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// adjusting the offset as well.
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re := regexp.MustCompile(`\r?\n`)
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newlines := re.Split(string(rl.infoText), -1)
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offset := len(newlines)
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wrapped, infoLen := WrapText(string(rl.infoText), width)
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offset += infoLen
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rl.infoY = offset
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infoText := string(wrapped)
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if len(infoText) > 0 {
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print("\r" + rl.InfoFormatting + string(infoText) + seqReset)
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}
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}
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func (rl *Instance) resetInfoText() {
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rl.infoY = 0
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rl.infoText = []rune{}
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}
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