279 lines
7.7 KiB
Go
279 lines
7.7 KiB
Go
package prompt
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// Option is the type to replace default parameters.
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// prompt.New accepts any number of options (this is functional option pattern).
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type Option func(prompt *Prompt) error
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// OptionParser to set a custom ConsoleParser object. An argument should implement ConsoleParser interface.
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func OptionParser(x ConsoleParser) Option {
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return func(p *Prompt) error {
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p.in = x
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return nil
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}
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}
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// OptionWriter to set a custom ConsoleWriter object. An argument should implement ConsoleWriter interface.
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func OptionWriter(x ConsoleWriter) Option {
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return func(p *Prompt) error {
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registerConsoleWriter(x)
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p.renderer.out = x
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return nil
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}
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}
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// OptionTitle to set title displayed at the header bar of terminal.
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func OptionTitle(x string) Option {
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return func(p *Prompt) error {
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p.renderer.title = x
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return nil
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}
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}
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// OptionPrefix to set prefix string.
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func OptionPrefix(x string) Option {
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return func(p *Prompt) error {
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p.renderer.prefix = x
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return nil
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}
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}
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// OptionCompletionWordSeparator to set word separators. Enable only ' ' if empty.
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func OptionCompletionWordSeparator(x string) Option {
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return func(p *Prompt) error {
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p.completion.wordSeparator = x
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return nil
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}
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}
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// OptionLivePrefix to change the prefix dynamically by callback function
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func OptionLivePrefix(f func() (prefix string, useLivePrefix bool)) Option {
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return func(p *Prompt) error {
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p.renderer.livePrefixCallback = f
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return nil
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}
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}
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// OptionPrefixTextColor change a text color of prefix string
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func OptionPrefixTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.prefixTextColor = x
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return nil
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}
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}
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// OptionPrefixBackgroundColor to change a background color of prefix string
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func OptionPrefixBackgroundColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.prefixBGColor = x
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return nil
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}
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}
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// OptionInputTextColor to change a color of text which is input by user
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func OptionInputTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.inputTextColor = x
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return nil
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}
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}
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// OptionInputBGColor to change a color of background which is input by user
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func OptionInputBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.inputBGColor = x
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return nil
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}
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}
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// OptionPreviewSuggestionTextColor to change a text color which is completed
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func OptionPreviewSuggestionTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.previewSuggestionTextColor = x
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return nil
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}
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}
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// OptionPreviewSuggestionBGColor to change a background color which is completed
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func OptionPreviewSuggestionBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.previewSuggestionBGColor = x
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return nil
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}
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}
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// OptionSuggestionTextColor to change a text color in drop down suggestions.
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func OptionSuggestionTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.suggestionTextColor = x
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return nil
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}
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}
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// OptionSuggestionBGColor change a background color in drop down suggestions.
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func OptionSuggestionBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.suggestionBGColor = x
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return nil
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}
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}
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// OptionSelectedSuggestionTextColor to change a text color for completed text which is selected inside suggestions drop down box.
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func OptionSelectedSuggestionTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.selectedSuggestionTextColor = x
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return nil
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}
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}
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// OptionSelectedSuggestionBGColor to change a background color for completed text which is selected inside suggestions drop down box.
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func OptionSelectedSuggestionBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.selectedSuggestionBGColor = x
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return nil
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}
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}
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// OptionDescriptionTextColor to change a background color of description text in drop down suggestions.
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func OptionDescriptionTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.descriptionTextColor = x
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return nil
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}
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}
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// OptionDescriptionBGColor to change a background color of description text in drop down suggestions.
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func OptionDescriptionBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.descriptionBGColor = x
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return nil
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}
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}
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// OptionSelectedDescriptionTextColor to change a text color of description which is selected inside suggestions drop down box.
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func OptionSelectedDescriptionTextColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.selectedDescriptionTextColor = x
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return nil
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}
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}
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// OptionSelectedDescriptionBGColor to change a background color of description which is selected inside suggestions drop down box.
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func OptionSelectedDescriptionBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.selectedDescriptionBGColor = x
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return nil
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}
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}
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// OptionScrollbarThumbColor to change a thumb color on scrollbar.
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func OptionScrollbarThumbColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.scrollbarThumbColor = x
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return nil
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}
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}
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// OptionScrollbarBGColor to change a background color of scrollbar.
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func OptionScrollbarBGColor(x Color) Option {
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return func(p *Prompt) error {
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p.renderer.scrollbarBGColor = x
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return nil
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}
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}
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// OptionMaxSuggestion specify the max number of displayed suggestions.
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func OptionMaxSuggestion(x uint16) Option {
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return func(p *Prompt) error {
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p.completion.max = x
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return nil
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}
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}
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// OptionHistory to set history expressed by string array.
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func OptionHistory(x []string) Option {
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return func(p *Prompt) error {
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p.history.histories = x
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p.history.Clear()
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return nil
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}
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}
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// OptionSwitchKeyBindMode set a key bind mode.
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func OptionSwitchKeyBindMode(m KeyBindMode) Option {
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return func(p *Prompt) error {
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p.keyBindMode = m
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return nil
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}
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}
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// SwitchKeyBindMode to set a key bind mode.
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// Deprecated: Please use OptionSwitchKeyBindMode.
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var SwitchKeyBindMode = OptionSwitchKeyBindMode
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// OptionAddKeyBind to set a custom key bind.
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func OptionAddKeyBind(b ...KeyBind) Option {
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return func(p *Prompt) error {
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p.keyBindings = append(p.keyBindings, b...)
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return nil
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}
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}
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// OptionAddASCIICodeBind to set a custom key bind.
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func OptionAddASCIICodeBind(b ...ASCIICodeBind) Option {
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return func(p *Prompt) error {
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p.ASCIICodeBindings = append(p.ASCIICodeBindings, b...)
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return nil
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}
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}
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// OptionShowCompletionAtStart to set completion window is open at start.
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func OptionShowCompletionAtStart() Option {
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return func(p *Prompt) error {
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p.completion.showAtStart = true
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return nil
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}
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}
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// New returns a Prompt with powerful auto-completion.
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func New(executor Executor, completer Completer, opts ...Option) *Prompt {
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defaultWriter := NewStdoutWriter()
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registerConsoleWriter(defaultWriter)
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pt := &Prompt{
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in: NewStandardInputParser(),
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renderer: &Render{
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prefix: "> ",
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out: defaultWriter,
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livePrefixCallback: func() (string, bool) { return "", false },
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prefixTextColor: Blue,
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prefixBGColor: DefaultColor,
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inputTextColor: DefaultColor,
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inputBGColor: DefaultColor,
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previewSuggestionTextColor: Green,
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previewSuggestionBGColor: DefaultColor,
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suggestionTextColor: White,
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suggestionBGColor: Cyan,
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selectedSuggestionTextColor: Black,
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selectedSuggestionBGColor: Turquoise,
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descriptionTextColor: Black,
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descriptionBGColor: Turquoise,
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selectedDescriptionTextColor: White,
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selectedDescriptionBGColor: Cyan,
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scrollbarThumbColor: DarkGray,
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scrollbarBGColor: Cyan,
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},
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buf: NewBuffer(),
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executor: executor,
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history: NewHistory(),
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completion: NewCompletionManager(completer, 6),
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keyBindMode: EmacsKeyBind, // All the above assume that bash is running in the default Emacs setting
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}
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for _, opt := range opts {
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if err := opt(pt); err != nil {
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panic(err)
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}
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}
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return pt
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}
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