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Implementing undo/redo to back tab key. (#1608)

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BDisp
2022-02-24 13:49:05 +00:00
committed by GitHub
parent 1557f7a71e
commit e3b62cff38
2 changed files with 91 additions and 0 deletions
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85
UnitTests/TextViewTests.cs
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@@ -5575,6 +5575,91 @@ line.
Assert.Equal (new Point (1, 1), tv.CursorPosition);
}
[Fact]
public void HistoryText_Undo_Redo_Multiline_Simples_Tab_BackTab ()
{
var text = "First line.\nSecond line.\nThird line.";
var tv = new TextView () { Width = 80, Height = 5, Text = text };
Assert.True (tv.ProcessKey (new KeyEvent (Key.Tab, new KeyModifiers ())));
Assert.Equal ($"\tFirst line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (1, 0), tv.CursorPosition);
Assert.True (tv.ProcessKey (new KeyEvent (Key.BackTab, new KeyModifiers ())));
Assert.Equal ($"First line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (0, 0), tv.CursorPosition);
// Undo
Assert.True (tv.ProcessKey (new KeyEvent (Key.Z | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ($"\tFirst line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (1, 0), tv.CursorPosition);
Assert.True (tv.IsDirty);
Assert.True (tv.ProcessKey (new KeyEvent (Key.Z | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ($"First line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (0, 0), tv.CursorPosition);
Assert.False (tv.IsDirty);
// Redo
Assert.True (tv.ProcessKey (new KeyEvent (Key.R | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ($"\tFirst line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (1, 0), tv.CursorPosition);
Assert.True (tv.ProcessKey (new KeyEvent (Key.R | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ($"First line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (0, 0), tv.CursorPosition);
}
[Fact]
public void HistoryText_Undo_Redo_Multiline_Selected_Tab_BackTab ()
{
var text = "First line.\nSecond line.\nThird line.";
var tv = new TextView () { Width = 80, Height = 5, Text = text };
tv.SelectionStartColumn = 6;
tv.CursorPosition = new Point (6, 2);
Assert.True (tv.ProcessKey (new KeyEvent (Key.Tab, new KeyModifiers ())));
Assert.Equal ("First \tline.", tv.Text);
Assert.Equal (1, tv.Lines);
Assert.Equal (new Point (7, 0), tv.CursorPosition);
Assert.True (tv.ProcessKey (new KeyEvent (Key.BackTab, new KeyModifiers ())));
Assert.Equal ("First line.", tv.Text);
Assert.Equal (1, tv.Lines);
Assert.Equal (new Point (6, 0), tv.CursorPosition);
// Undo
Assert.True (tv.ProcessKey (new KeyEvent (Key.Z | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("First \tline.", tv.Text);
Assert.Equal (1, tv.Lines);
Assert.Equal (new Point (7, 0), tv.CursorPosition);
Assert.True (tv.IsDirty);
Assert.True (tv.ProcessKey (new KeyEvent (Key.Z | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ($"First line.{Environment.NewLine}Second line.{Environment.NewLine}Third line.", tv.Text);
Assert.Equal (3, tv.Lines);
Assert.Equal (new Point (6, 2), tv.CursorPosition);
Assert.False (tv.IsDirty);
// Redo
Assert.True (tv.ProcessKey (new KeyEvent (Key.R | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("First \tline.", tv.Text);
Assert.Equal (1, tv.Lines);
Assert.Equal (new Point (7, 0), tv.CursorPosition);
Assert.True (tv.ProcessKey (new KeyEvent (Key.R | Key.CtrlMask, new KeyModifiers ())));
Assert.Equal ("First line.", tv.Text);
Assert.Equal (1, tv.Lines);
Assert.Equal (new Point (6, 0), tv.CursorPosition);
}
[Fact]
public void HistoryText_ClearHistoryChanges ()
{