Merge pull request #381 from boombuler/logview

Log View

cmd/micro/actions.go

@@ -711,7 +711,7 @@ func (v *View) Save(usePlugin bool) bool {
 		return false
 	}
 
-	if v.Help {
+	if v.Type == vtHelp {
 		// We can't save the help text
 		return false
 	}
@@ -1258,7 +1258,7 @@ func (v *View) ToggleHelp(usePlugin bool) bool {
 		return false
 	}
 
-	if !v.Help {
+	if v.Type != vtHelp {
 		// Open the default help
 		v.openHelp("help")
 	} else {

cmd/micro/command.go

@@ -26,19 +26,20 @@ type StrCommand struct {
 var commands map[string]Command
 
 var commandActions = map[string]func([]string){
-	"Set":      Set,
-	"SetLocal": SetLocal,
-	"Show":     Show,
-	"Run":      Run,
-	"Bind":     Bind,
-	"Quit":     Quit,
-	"Save":     Save,
-	"Replace":  Replace,
-	"VSplit":   VSplit,
-	"HSplit":   HSplit,
-	"Tab":      NewTab,
-	"Help":     Help,
-	"Eval":     Eval,
+	"Set":       Set,
+	"SetLocal":  SetLocal,
+	"Show":      Show,
+	"Run":       Run,
+	"Bind":      Bind,
+	"Quit":      Quit,
+	"Save":      Save,
+	"Replace":   Replace,
+	"VSplit":    VSplit,
+	"HSplit":    HSplit,
+	"Tab":       NewTab,
+	"Help":      Help,
+	"Eval":      Eval,
+	"ToggleLog": ToggleLog,
 }
 
 // InitCommands initializes the default commands
@@ -84,6 +85,17 @@ func DefaultCommands() map[string]StrCommand {
 		"tab":      {"Tab", []Completion{FileCompletion, NoCompletion}},
 		"help":     {"Help", []Completion{HelpCompletion, NoCompletion}},
 		"eval":     {"Eval", []Completion{NoCompletion}},
+		"log":      {"ToggleLog", []Completion{NoCompletion}},
+	}
+}
+
+func ToggleLog(args []string) {
+	buffer := messenger.getBuffer()
+	if CurView().Type != vtLog {
+		CurView().VSplit(buffer)
+		CurView().Type = vtLog
+	} else {
+		CurView().Quit(true)
 	}
 }
 

cmd/micro/messenger.go

@@ -24,6 +24,7 @@ func TermMessage(msg ...interface{}) {
 	}
 
 	fmt.Println(msg...)
+	messenger.AddLog(fmt.Sprint(msg...))
 	fmt.Print("\nPress enter to continue")
 
 	reader := bufio.NewReader(os.Stdin)
@@ -43,6 +44,7 @@ func TermError(filename string, lineNum int, err string) {
 // Messenger is an object that makes it easy to send messages to the user
 // and get input from the user
 type Messenger struct {
+	log *Buffer
 	// Are we currently prompting the user?
 	hasPrompt bool
 	// Is there a message to print
@@ -67,16 +69,30 @@ type Messenger struct {
 	gutterMessage bool
 }
 
+func (m *Messenger) AddLog(msg string) {
+	buffer := m.getBuffer()
+	buffer.Insert(buffer.End(), msg+"\n")
+	buffer.Cursor.Loc = buffer.End()
+	buffer.Cursor.Relocate()
+}
+
+func (m *Messenger) getBuffer() *Buffer {
+	if m.log == nil {
+		m.log = NewBuffer([]byte{}, "")
+		m.log.Name = "Log"
+	}
+	return m.log
+}
+
 // Message sends a message to the user
 func (m *Messenger) Message(msg ...interface{}) {
-	buf := new(bytes.Buffer)
-	fmt.Fprint(buf, msg...)
-	m.message = buf.String()
+	m.message = fmt.Sprint(msg...)
 	m.style = defStyle
 
 	if _, ok := colorscheme["message"]; ok {
 		m.style = colorscheme["message"]
 	}
+	m.AddLog(m.message)
 	m.hasMessage = true
 }
 
@@ -92,6 +108,7 @@ func (m *Messenger) Error(msg ...interface{}) {
 	if _, ok := colorscheme["error-message"]; ok {
 		m.style = colorscheme["error-message"]
 	}
+	m.AddLog(m.message)
 	m.hasMessage = true
 }
 
@@ -113,13 +130,16 @@ func (m *Messenger) YesNoPrompt(prompt string) (bool, bool) {
 			switch e.Key() {
 			case tcell.KeyRune:
 				if e.Rune() == 'y' {
+					m.AddLog("\t--> y")
 					m.hasPrompt = false
 					return true, false
 				} else if e.Rune() == 'n' {
+					m.AddLog("\t--> n")
 					m.hasPrompt = false
 					return false, false
 				}
 			case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
+				m.AddLog("\t--> (cancel)")
 				m.hasPrompt = false
 				return false, true
 			}
@@ -146,6 +166,7 @@ func (m *Messenger) LetterPrompt(prompt string, responses ...rune) (rune, bool)
 			case tcell.KeyRune:
 				for _, r := range responses {
 					if e.Rune() == r {
+						m.AddLog("\t--> " + string(r))
 						m.Clear()
 						m.Reset()
 						m.hasPrompt = false
@@ -153,6 +174,7 @@ func (m *Messenger) LetterPrompt(prompt string, responses ...rune) (rune, bool)
 					}
 				}
 			case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
+				m.AddLog("\t--> (cancel)")
 				m.Clear()
 				m.Reset()
 				m.hasPrompt = false
@@ -198,9 +220,11 @@ func (m *Messenger) Prompt(prompt, historyType string, completionTypes ...Comple
 			switch e.Key() {
 			case tcell.KeyCtrlQ, tcell.KeyCtrlC, tcell.KeyEscape:
 				// Cancel
+				m.AddLog("\t--> (cancel)")
 				m.hasPrompt = false
 			case tcell.KeyEnter:
 				// User is done entering their response
+				m.AddLog("\t--> " + m.response)
 				m.hasPrompt = false
 				response, canceled = m.response, false
 				m.history[historyType][len(m.history[historyType])-1] = response

cmd/micro/statusline.go

@@ -37,7 +37,7 @@ func (sline *Statusline) Display() {
 	file += " " + sline.view.Buf.FileType()
 
 	rightText := helpBinding + " for help "
-	if sline.view.Help {
+	if sline.view.Type == vtHelp {
 		rightText = helpBinding + " to close help "
 	}
 

cmd/micro/view.go

@@ -11,6 +11,14 @@ import (
 	"github.com/zyedidia/tcell"
 )
 
+type ViewType int
+
+const (
+	vtDefault ViewType = iota
+	vtHelp
+	vtLog
+)
+
 // The View struct stores information about a view into a buffer.
 // It stores information about the cursor, and the viewport
 // that the user sees the buffer from.
@@ -28,7 +36,7 @@ type View struct {
 	heightPercent int
 
 	// Specifies whether or not this view holds a help buffer
-	Help bool
+	Type ViewType
 
 	// Actual with and height
 	width  int
@@ -185,7 +193,7 @@ func (v *View) ScrollDown(n int) {
 // If there are unsaved changes, the user will be asked if the view can be closed
 // causing them to lose the unsaved changes
 func (v *View) CanClose() bool {
-	if v.Buf.IsModified {
+	if v.Type == vtDefault && v.Buf.IsModified {
 		char, canceled := messenger.LetterPrompt("Save changes to "+v.Buf.Name+" before closing? (y,n,esc) ", 'y', 'n')
 		if !canceled {
 			if char == 'y' {
@@ -536,11 +544,11 @@ func (v *View) openHelp(helpPage string) {
 		helpBuffer := NewBuffer(data, helpPage+".md")
 		helpBuffer.Name = "Help"
 
-		if v.Help {
+		if v.Type == vtHelp {
 			v.OpenBuffer(helpBuffer)
 		} else {
 			v.HSplit(helpBuffer)
-			CurView().Help = true
+			CurView().Type = vtHelp
 		}
 	}
 }
@@ -553,9 +561,15 @@ func (v *View) drawCell(x, y int, ch rune, combc []rune, style tcell.Style) {
 
 // DisplayView renders the view to the screen
 func (v *View) DisplayView() {
+	if v.Type == vtLog {
+		// Log views should always follow the cursor...
+		v.Relocate()
+	}
+
 	if v.Buf.Settings["syntax"].(bool) {
 		v.matches = Match(v)
 	}
+
 	// The charNum we are currently displaying
 	// starts at the start of the viewport
 	charNum := Loc{0, v.Topline}