"fmt"
"os"
"strconv"
+ "strings"
- "github.com/gdamore/tcell"
+ "github.com/zyedidia/tcell"
)
// TermMessage sends a message to the user in the terminal. This usually occurs before
// We have to keep track of the cursor for prompting
cursorx int
+
+ // This map stores the history for all the different kinds of uses Prompt has
+ // It's a map of history type -> history array
+ history map[string][]string
+ historyNum int
+
+ // Is the current message a message from the gutter
+ gutterMessage bool
}
// Message sends a message to the user
}
// YesNoPrompt asks the user a yes or no question (waits for y or n) and returns the result
-func (m *Messenger) YesNoPrompt(prompt string) bool {
+func (m *Messenger) YesNoPrompt(prompt string) (bool, bool) {
m.Message(prompt)
+ _, h := screen.Size()
for {
m.Clear()
m.Display()
+ screen.ShowCursor(Count(m.message), h-1)
screen.Show()
- event := screen.PollEvent()
+ event := <-events
switch e := event.(type) {
case *tcell.EventKey:
- if e.Key() == tcell.KeyRune {
+ switch e.Key() {
+ case tcell.KeyRune:
if e.Rune() == 'y' {
- return true
+ return true, false
} else if e.Rune() == 'n' {
- return false
+ return false, false
}
+ case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
+ return false, true
}
}
}
}
+type Completion int
+
+const (
+ NoCompletion Completion = iota
+ FileCompletion
+ CommandCompletion
+ HelpCompletion
+ OptionCompletion
+)
+
// Prompt sends the user a message and waits for a response to be typed in
// This function blocks the main loop while waiting for input
-func (m *Messenger) Prompt(prompt string) (string, bool) {
+func (m *Messenger) Prompt(prompt, historyType string, completionTypes ...Completion) (string, bool) {
m.hasPrompt = true
m.Message(prompt)
+ if _, ok := m.history[historyType]; !ok {
+ m.history[historyType] = []string{""}
+ } else {
+ m.history[historyType] = append(m.history[historyType], "")
+ }
+ m.historyNum = len(m.history[historyType]) - 1
response, canceled := "", true
+ RedrawAll()
for m.hasPrompt {
+ var suggestions []string
m.Clear()
- m.Display()
- event := screen.PollEvent()
+ event := <-events
switch e := event.(type) {
case *tcell.EventKey:
// User is done entering their response
m.hasPrompt = false
response, canceled = m.response, false
+ m.history[historyType][len(m.history[historyType])-1] = response
+ case tcell.KeyTab:
+ args := strings.Split(m.response, " ")
+ currentArgNum := len(args) - 1
+ currentArg := args[currentArgNum]
+ var completionType Completion
+
+ if completionTypes[0] == CommandCompletion && currentArgNum > 0 {
+ if command, ok := commands[args[0]]; ok {
+ completionTypes = append([]Completion{CommandCompletion}, command.completions...)
+ }
+ }
+
+ if currentArgNum >= len(completionTypes) {
+ completionType = completionTypes[len(completionTypes)-1]
+ } else {
+ completionType = completionTypes[currentArgNum]
+ }
+
+ var chosen string
+ if completionType == FileCompletion {
+ chosen, suggestions = FileComplete(currentArg)
+ } else if completionType == CommandCompletion {
+ chosen, suggestions = CommandComplete(currentArg)
+ } else if completionType == HelpCompletion {
+ chosen, suggestions = HelpComplete(currentArg)
+ } else if completionType == OptionCompletion {
+ chosen, suggestions = OptionComplete(currentArg)
+ }
+
+ if chosen != "" {
+ if len(args) > 1 {
+ chosen = " " + chosen
+ }
+ m.response = strings.Join(args[:len(args)-1], " ") + chosen
+ m.cursorx = Count(m.response)
+ }
}
}
- m.HandleEvent(event)
+ m.HandleEvent(event, m.history[historyType])
- if m.cursorx < 0 {
- // Cancel
- m.hasPrompt = false
+ messenger.Clear()
+ for _, v := range tabs[curTab].views {
+ v.Display()
}
+ DisplayTabs()
+ messenger.Display()
+ if len(suggestions) > 1 {
+ m.DisplaySuggestions(suggestions)
+ }
+ screen.Show()
}
m.Reset()
}
// HandleEvent handles an event for the prompter
-func (m *Messenger) HandleEvent(event tcell.Event) {
+func (m *Messenger) HandleEvent(event tcell.Event, history []string) {
switch e := event.(type) {
case *tcell.EventKey:
switch e.Key() {
+ case tcell.KeyUp:
+ if m.historyNum > 0 {
+ m.historyNum--
+ m.response = history[m.historyNum]
+ m.cursorx = Count(m.response)
+ }
+ case tcell.KeyDown:
+ if m.historyNum < len(history)-1 {
+ m.historyNum++
+ m.response = history[m.historyNum]
+ m.cursorx = Count(m.response)
+ }
case tcell.KeyLeft:
if m.cursorx > 0 {
m.cursorx--
if m.cursorx < Count(m.response) {
m.cursorx++
}
- case tcell.KeyBackspace2:
+ case tcell.KeyBackspace2, tcell.KeyBackspace:
if m.cursorx > 0 {
- m.response = string([]rune(m.response)[:m.cursorx-1]) + string(m.response[m.cursorx:])
+ m.response = string([]rune(m.response)[:m.cursorx-1]) + string([]rune(m.response)[m.cursorx:])
+ m.cursorx--
}
- m.cursorx--
- case tcell.KeySpace:
- m.response += " "
- m.cursorx++
case tcell.KeyRune:
m.response = Insert(m.response, m.cursorx, string(e.Rune()))
m.cursorx++
}
+ history[m.historyNum] = m.response
}
}
}
}
+func (m *Messenger) DisplaySuggestions(suggestions []string) {
+ w, screenH := screen.Size()
+
+ y := screenH - 2
+
+ statusLineStyle := defStyle.Reverse(true)
+ if style, ok := colorscheme["statusline"]; ok {
+ statusLineStyle = style
+ }
+
+ for x := 0; x < w; x++ {
+ screen.SetContent(x, y, ' ', nil, statusLineStyle)
+ }
+
+ x := 1
+ for _, suggestion := range suggestions {
+ for _, c := range suggestion {
+ screen.SetContent(x, y, c, nil, statusLineStyle)
+ x++
+ }
+ screen.SetContent(x, y, ' ', nil, statusLineStyle)
+ x++
+ }
+}
+
// Display displays messages or prompts
func (m *Messenger) Display() {
_, h := screen.Size()
screen.Show()
}
}
+
+// A GutterMessage is a message displayed on the side of the editor
+type GutterMessage struct {
+ lineNum int
+ msg string
+ kind int
+}
+
+// These are the different types of messages
+const (
+ // GutterInfo represents a simple info message
+ GutterInfo = iota
+ // GutterWarning represents a compiler warning
+ GutterWarning
+ // GutterError represents a compiler error
+ GutterError
+)