Add input bar and implement File->Open dropdown option

src/input_bar.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"github.com/gdamore/tcell"
+)
+
+type TyperInputRequest struct {
+	Text         string
+	input        string
+	cursorPos    int
+	inputChannel chan string
+}
+
+var currentInputRequest *TyperInputRequest
+
+func RequestInput(window *Window, text string) chan string {
+	request := &TyperInputRequest{
+		Text:         text,
+		input:        "",
+		cursorPos:    0,
+		inputChannel: make(chan string),
+	}
+
+	currentInputRequest = request
+
+	window.CursorMode = CursorModeInputBar
+
+	return request.inputChannel
+}
+
+func IsRequestingInput() bool {
+	return currentInputRequest != nil
+}
+
+func drawInputBar(window *Window) {
+	if currentInputRequest == nil {
+		return
+	}
+
+	screen := window.screen
+
+	inputBarStyle := tcell.StyleDefault.Foreground(tcell.ColorBlack).Background(tcell.ColorWhite)
+
+	sizeX, sizeY := screen.Size()
+
+	// Draw bar
+	for x := 0; x < sizeX; x++ {
+		char := ' '
+		screen.SetContent(x, sizeY-1, char, nil, inputBarStyle)
+	}
+
+	// Write text
+	for x := 0; x < len(currentInputRequest.Text); x++ {
+		screen.SetContent(x, sizeY-1, rune(currentInputRequest.Text[x]), nil, inputBarStyle)
+	}
+	for x := 0; x < len(currentInputRequest.input); x++ {
+		screen.SetContent(x+len(currentInputRequest.Text)+1, sizeY-1, rune(currentInputRequest.input[x]), nil, inputBarStyle)
+	}
+}

src/message_bar.go

@@ -48,6 +48,11 @@ func drawMessageBar(window *Window) {
 			char = int32(messageToPrint[x])
 		}
 
-		screen.SetContent(x, sizeY-1, char, nil, messageBarStyle)
+		if currentInputRequest == nil {
+			screen.SetContent(x, sizeY-1, char, nil, messageBarStyle)
+		} else {
+			screen.SetContent(x, sizeY-2, char, nil, messageBarStyle)
+		}
+
 	}
 }

src/top_menu.go

@@ -36,8 +36,27 @@ func initTopMenu() {
 					buffer := CreateBuffer(fmt.Sprintf("New File %d", number))
 					window.textArea.CurrentBuffer = buffer
 					window.SetCursorPos(0)
+					window.CursorMode = CursorModeBuffer
 				case 1:
+					_ = RequestInput(window, "Save buffer to:")
+					PrintMessage(window, "Input requested...")
 				case 2:
+					inputChannel := RequestInput(window, "File to open:")
+					go func() {
+						input := <-inputChannel
+
+						if input == "" {
+							return
+						}
+
+						buffer, err := CreateFileBuffer(input)
+						if err != nil {
+							PrintMessage(window, fmt.Sprintf("Could not open file: %s", err.Error()))
+							return
+						}
+						PrintMessage(window, fmt.Sprintf("Opening file: %s", input))
+						window.textArea.CurrentBuffer = buffer
+					}()
 				case 3:
 					delete(Buffers, window.textArea.CurrentBuffer.Id)
 					buffersSlice := slices.Collect(maps.Values(Buffers))
@@ -47,11 +66,12 @@ func initTopMenu() {
 					}
 					window.textArea.CurrentBuffer = buffersSlice[0]
 					window.SetCursorPos(0)
+					window.CursorMode = CursorModeBuffer
 				case 4:
 					window.Close()
+					window.CursorMode = CursorModeBuffer
 				}
 				ClearDropdowns()
-				window.CursorMode = CursorModeBuffer
 			})
 			ActiveDropdown = d
 			window.CursorMode = CursorModeDropdown

src/window.go

@@ -13,7 +13,7 @@ const (
 	CursorModeDisabled CursorMode = iota
 	CursorModeBuffer
 	CursorModeDropdown
-	CursorModeMessageBar
+	CursorModeInputBar
 )
 
 type Window struct {
@@ -122,6 +122,11 @@ func (window *Window) Draw() {
 		window.drawCurrentBuffer()
 	}
 
+	// Draw input bar
+	if currentInputRequest != nil {
+		drawInputBar(window)
+	}
+
 	// Draw message bar
 	drawMessageBar(window)
 
@@ -131,6 +136,9 @@ func (window *Window) Draw() {
 	// Draw cursor
 	if window.CursorMode == CursorModeBuffer {
 		window.screen.ShowCursor(window.GetAbsoluteCursorPos())
+	} else if window.CursorMode == CursorModeInputBar {
+		_, sizeY := window.screen.Size()
+		window.screen.ShowCursor(len(currentInputRequest.Text)+len(currentInputRequest.input)+1, sizeY-1)
 	} else {
 		window.screen.HideCursor()
 	}
@@ -184,8 +192,14 @@ func (window *Window) input(ev *tcell.EventKey) {
 			}
 		}
 	} else if ev.Key() == tcell.KeyEscape {
-		ClearDropdowns()
-		window.CursorMode = CursorModeBuffer
+		if window.CursorMode == CursorModeInputBar {
+			currentInputRequest.inputChannel <- ""
+			currentInputRequest = nil
+			window.CursorMode = CursorModeBuffer
+		} else {
+			ClearDropdowns()
+			window.CursorMode = CursorModeBuffer
+		}
 	} else if ev.Key() == tcell.KeyCtrlC { // Close buffer key
 		delete(Buffers, window.textArea.CurrentBuffer.Id)
 		buffersSlice := slices.Collect(maps.Values(Buffers))
@@ -207,34 +221,40 @@ func (window *Window) input(ev *tcell.EventKey) {
 			}
 		}
 	} else if ev.Key() == tcell.KeyBackspace2 { // Typing
-		str := window.textArea.CurrentBuffer.Contents
-		index := window.textArea.CursorPos
+		if window.CursorMode == CursorModeBuffer {
+			str := window.textArea.CurrentBuffer.Contents
+			index := window.textArea.CursorPos
 
-		if index != 0 {
-			str = str[:index-1] + str[index:]
-			window.textArea.CursorPos--
-			window.textArea.CurrentBuffer.Contents = str
+			if index != 0 {
+				str = str[:index-1] + str[index:]
+				window.textArea.CursorPos--
+				window.textArea.CurrentBuffer.Contents = str
+			}
+		} else if window.CursorMode == CursorModeInputBar {
+			str := currentInputRequest.input
+			index := currentInputRequest.cursorPos
+
+			if index != 0 {
+				str = str[:index-1] + str[index:]
+				currentInputRequest.cursorPos--
+				currentInputRequest.input = str
+			}
 		}
 	} else if ev.Key() == tcell.KeyTab {
-		if ActiveDropdown != nil {
-			return
-		}
+		if window.CursorMode == CursorModeBuffer {
+			str := window.textArea.CurrentBuffer.Contents
+			index := window.textArea.CursorPos
 
-		str := window.textArea.CurrentBuffer.Contents
-		index := window.textArea.CursorPos
-
-		if index == len(str) {
-			str += "\t"
-		} else {
-			str = str[:index] + "\t" + str[index:]
+			if index == len(str) {
+				str += "\t"
+			} else {
+				str = str[:index] + "\t" + str[index:]
+			}
+			window.textArea.CursorPos++
+			window.textArea.CurrentBuffer.Contents = str
 		}
-		window.textArea.CursorPos++
-		window.textArea.CurrentBuffer.Contents = str
 	} else if ev.Key() == tcell.KeyEnter {
-		if ActiveDropdown != nil {
-			d := ActiveDropdown
-			d.Action(d.Selected)
-		} else {
+		if window.CursorMode == CursorModeBuffer {
 			str := window.textArea.CurrentBuffer.Contents
 			index := window.textArea.CursorPos
 
@@ -245,22 +265,39 @@ func (window *Window) input(ev *tcell.EventKey) {
 			}
 			window.textArea.CursorPos++
 			window.textArea.CurrentBuffer.Contents = str
+		} else if window.CursorMode == CursorModeInputBar {
+			currentInputRequest.inputChannel <- currentInputRequest.input
+			currentInputRequest = nil
+			window.CursorMode = CursorModeBuffer
+		} else if window.CursorMode == CursorModeDropdown {
+			d := ActiveDropdown
+			d.Action(d.Selected)
 		}
 	} else if ev.Key() == tcell.KeyRune {
-		if ActiveDropdown != nil {
-			return
-		}
+		if window.CursorMode == CursorModeBuffer {
+			str := window.textArea.CurrentBuffer.Contents
+			index := window.textArea.CursorPos
 
-		str := window.textArea.CurrentBuffer.Contents
-		index := window.textArea.CursorPos
+			if index == len(str) {
+				str += string(ev.Rune())
+			} else {
+				str = str[:index] + string(ev.Rune()) + str[index:]
+			}
+			window.textArea.CursorPos++
+			window.textArea.CurrentBuffer.Contents = str
+		} else if window.CursorMode == CursorModeInputBar {
+			str := currentInputRequest.input
+			index := currentInputRequest.cursorPos
 
-		if index == len(str) {
-			str += string(ev.Rune())
-		} else {
-			str = str[:index] + string(ev.Rune()) + str[index:]
+			if index == len(str) {
+				str += string(ev.Rune())
+			} else {
+				str = str[:index] + string(ev.Rune()) + str[index:]
+			}
+
+			currentInputRequest.cursorPos++
+			currentInputRequest.input = str
 		}
-		window.textArea.CursorPos++
-		window.textArea.CurrentBuffer.Contents = str
 	}
 }