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)
+	}
+}