Prepare for Save As functionality

internal/editor/document/document.go

@@ -75,7 +75,7 @@ func (d *Document) Save() int {
 	return 0
 }
 
-func (d *Document) Row(at int) *Row {
+func (d *Document) GetRow(at int) *Row {
 	return d.rows[at]
 }
 

internal/editor/draw.go

@@ -36,7 +36,7 @@ func (e *editor) scroll() {
 	e.renderX = 0
 
 	if e.cursor.Y < e.document.RowCount() {
-		e.renderX = e.document.Row(e.cursor.Y).CursorXToRenderX(e.cursor.X)
+		e.renderX = e.document.GetRow(e.cursor.Y).CursorXToRenderX(e.cursor.X)
 	}
 
 	if e.cursor.Y < e.offset.Y {
@@ -63,7 +63,7 @@ func (e *editor) drawRows(ab *gilo.Buffer) {
 		if fileRow >= e.document.RowCount() {
 			e.drawPlaceholderRow(y, ab)
 		} else {
-			rawRow := e.document.Row(fileRow)
+			rawRow := e.document.GetRow(fileRow)
 
 			// If the column offset is greater than the length of the row,
 			// just display an empty row
@@ -73,8 +73,8 @@ func (e *editor) drawRows(ab *gilo.Buffer) {
 				continue
 			}
 
-			rowLen := e.document.Row(fileRow).RenderSize() - e.offset.X
+			rowLen := e.document.GetRow(fileRow).RenderSize() - e.offset.X
-			outputRow := truncate(e.document.Row(fileRow).Render(e.offset), rowLen)
+			outputRow := truncate(e.document.GetRow(fileRow).Render(e.offset), rowLen)
 			ab.Append(outputRow)
 		}
 

internal/editor/editor.go

@@ -6,6 +6,7 @@ import (
 	"time"
 	doc "timshome.page/gilo/internal/editor/document"
 	"timshome.page/gilo/internal/gilo"
+	"timshome.page/gilo/internal/key"
 	"timshome.page/gilo/internal/terminal"
 )
 
@@ -58,6 +59,10 @@ func (e *editor) Open(filename string) {
 }
 
 func (e *editor) Save() {
+	//if e.document.Filename == "" {
+	//	e.document.Filename = e.Prompt("Save as: %s")
+	//}
+
 	size := e.document.Save()
 
 	if size > 0 {
@@ -80,6 +85,31 @@ func (e *editor) ProcessKeypress() bool {
 	return e.processKeypressChar(ch)
 }
 
+func (e *editor) Prompt(prompt string) string {
+	buf := gilo.NewBuffer()
+
+	for {
+		if buf.Len() > 0 {
+			e.SetStatusMessage(prompt, buf.ToString())
+		} else {
+			e.SetStatusMessage(prompt)
+		}
+
+		e.RefreshScreen()
+
+		ch, _ := terminal.ReadKey()
+		if ch == key.Enter {
+			if buf.Len() != 0 {
+				e.SetStatusMessage("")
+
+				return buf.ToString()
+			} else if ! key.IsCtrl(ch) && key.IsAscii(ch) {
+				buf.AppendRune(ch)
+			}
+		}
+	}
+}
+
 func (e *editor) insertChar(ch rune) {
 	if e.cursor.Y == e.document.RowCount() {
 		e.document.AppendRow("")
@@ -106,7 +136,7 @@ func (e *editor) delChar() {
 		e.cursor.X -= 1
 	} else {
 		// Move cursor to the current end of the previous line
-		e.cursor.X = e.document.Row(e.cursor.Y - 1).Size()
+		e.cursor.X = e.document.GetRow(e.cursor.Y - 1).Size()
 
 		// Move the contents of the current row to the previous
 		e.document.MergeRows(e.cursor.Y - 1, e.cursor.Y)

internal/editor/editor_test.go

@@ -18,7 +18,7 @@ func TestInsertChar(t *testing.T) {
 		t.Errorf("A row was not created when the character was inserted")
 	}
 
-	row := e.document.Row(0)
+	row := e.document.GetRow(0)
 	if row.Size() != 1 {
 		t.Errorf("Failed to add character to row. Row: %v", row)
 	}

internal/editor/input.go

@@ -30,7 +30,7 @@ func (e *editor) processKeypressChar(ch rune) bool {
 	switch ch {
 	case key.Ctrl('q'):
 		if e.document.IsDirty() && e.quitTimes > 0 {
-			e.SetStatusMessage("WARNING!!! File has unsaved changes. Press Ctrl-Q %d more tiems to quite.", e.quitTimes)
+			e.SetStatusMessage("WARNING!!! File has unsaved changes. Press Ctrl-Q %d more times to quit.", e.quitTimes)
 			e.quitTimes -= 1
 
 			return true
@@ -106,7 +106,7 @@ func (e *editor) moveCursor(key string) {
 	if e.cursor.Y >= e.document.RowCount() {
 		row = nil
 	} else {
-		row = e.document.Row(e.cursor.Y)
+		row = e.document.GetRow(e.cursor.Y)
 	}
 
 	switch key {
@@ -118,7 +118,7 @@ func (e *editor) moveCursor(key string) {
 		// Move from beginning of current row to end of previous row
 		if e.cursor.Y > 0 {
 			e.cursor.Y -= 1
-			e.cursor.X = e.document.Row(e.cursor.Y).Size()
+			e.cursor.X = e.document.GetRow(e.cursor.Y).Size()
 		}
 	case keyRight:
 		if row != nil && e.cursor.X < row.Size() {
@@ -161,7 +161,7 @@ func (e *editor) moveCursor(key string) {
 	}
 
 	if e.cursor.Y < e.document.RowCount() {
-		row = e.document.Row(e.cursor.Y)
+		row = e.document.GetRow(e.cursor.Y)
 		rowLen := row.Size()
 
 		// Snap to the end of a shorter line from a longer one

internal/gilo/buffer.go

@@ -44,3 +44,7 @@ func (b *Buffer) AppendLn(s string) int {
 func (b *Buffer) ToString() string {
 	return b.buf.String()
 }
+
+func (b *Buffer) Len() int {
+	return b.buf.Len()
+}

internal/gilo/buffer_test.go

@@ -2,7 +2,7 @@ package gilo
 
 import "testing"
 
-func TestBufferAppendRune(t *testing.T) {
+func TestBuffer_AppendRune(t *testing.T) {
 	b := NewBuffer()
 
 	got := b.AppendRune('a')
@@ -13,7 +13,7 @@ func TestBufferAppendRune(t *testing.T) {
 	}
 }
 
-func TestBufferAppend(t *testing.T) {
+func TestBuffer_Append(t *testing.T) {
 	b := NewBuffer()
 
 	got := b.Append("123")
@@ -24,7 +24,7 @@ func TestBufferAppend(t *testing.T) {
 	}
 }
 
-func TestBufferAppendLn(t *testing.T) {
+func TestBuffer_AppendLn(t *testing.T) {
 	b := NewBuffer()
 
 	got := b.AppendLn("123")
@@ -37,7 +37,7 @@ func TestBufferAppendLn(t *testing.T) {
 	}
 }
 
-func TestBufferToString(t *testing.T) {
+func TestBuffer_ToString(t *testing.T) {
 	b := NewBuffer()
 	b.Append("foo")
 
@@ -48,3 +48,15 @@ func TestBufferToString(t *testing.T) {
 		t.Errorf("Failed to convert to proper string")
 	}
 }
+
+func TestBuffer_Len(t *testing.T) {
+	b := NewBuffer()
+	b.Append("foo")
+
+	got := b.Len()
+	want := 3
+
+	if got != want {
+		t.Errorf("Wrong length for string, got %d, expected %d", got, want)
+	}
+}

internal/gilo/point_test.go

@@ -0,0 +1,19 @@
+package gilo
+
+import "testing"
+
+func TestDefaultPoint(t *testing.T) {
+	point := DefaultPoint()
+
+	if point.X != 0 || point.Y != 0 {
+		t.Errorf("Failure to create proper Point")
+	}
+}
+
+func TestNewPoint(t *testing.T) {
+	point := NewPoint(3, 5)
+
+	if point.X != 3 || point.Y != 5 {
+		t.Errorf("Failure to create proper Point")
+	}
+}

internal/key/key.go

@@ -11,13 +11,13 @@ const (
 )
 
 // Is this an ASCII character?
-func isAscii(char rune) bool {
+func IsAscii(char rune) bool {
 	return char < 0x80
 }
 
 // Is this an ASCII ctrl character?
 func IsCtrl(char rune) bool {
-	if !isAscii(char) {
+	if !IsAscii(char) {
 		return false
 	}
 
@@ -26,7 +26,7 @@ func IsCtrl(char rune) bool {
 
 // Return the input code of a Ctrl-key chord.
 func Ctrl(char rune) rune {
-	if !isAscii(char) {
+	if !IsAscii(char) {
 		return 0
 	}
 

internal/key/key_test.go

@@ -17,7 +17,7 @@ var isAsciiTest = []isRune{
 
 func TestIsAscii(t *testing.T) {
 	for _, test := range isAsciiTest {
-		if output := isAscii(test.arg1); output != test.expected {
+		if output := IsAscii(test.arg1); output != test.expected {
 			t.Errorf("Output %v not equal to expected %v for input %q", output, test.expected, test.arg1)
 		}
 	}