mirror of
https://github.com/gui-cs/Terminal.Gui.git
synced 2025-12-27 00:07:58 +01:00
* Fix the application crashing when closing the save file dialog without saving * Allow user to write in multiple tabs without saving file * Maintain code consistency --------- Co-authored-by: Tig <tig@users.noreply.github.com>
This commit is contained in:
Maciej
GitHub
@@ -1,413 +1,417 @@
|
||||
using System;
|
||||
using System.IO;
|
||||
using System.IO;
|
||||
using System.Linq;
|
||||
using Terminal.Gui;
|
||||
|
||||
namespace UICatalog.Scenarios {
|
||||
namespace UICatalog.Scenarios;
|
||||
|
||||
[ScenarioMetadata (Name: "Notepad", Description: "Multi-tab text editor using the TabView control.")]
|
||||
[ScenarioCategory ("Controls"), ScenarioCategory ("TabView"), ScenarioCategory ("TextView")]
|
||||
public class Notepad : Scenario {
|
||||
TabView tabView;
|
||||
[ScenarioMetadata (Name: "Notepad", Description: "Multi-tab text editor using the TabView control.")]
|
||||
[ScenarioCategory ("Controls"), ScenarioCategory ("TabView"), ScenarioCategory ("TextView")]
|
||||
public class Notepad : Scenario {
|
||||
TabView tabView;
|
||||
|
||||
private int numbeOfNewTabs = 1;
|
||||
private TabView focusedTabView;
|
||||
private StatusItem lenStatusItem;
|
||||
private int _numbeOfNewTabs = 1;
|
||||
private TabView _focusedTabView;
|
||||
private StatusItem _lenStatusItem;
|
||||
|
||||
// Don't create a Window, just return the top-level view
|
||||
public override void Init ()
|
||||
{
|
||||
Application.Init ();
|
||||
Application.Top.ColorScheme = Colors.Base;
|
||||
}
|
||||
// Don't create a Window, just return the top-level view
|
||||
public override void Init ()
|
||||
{
|
||||
Application.Init ();
|
||||
Application.Top.ColorScheme = Colors.Base;
|
||||
}
|
||||
|
||||
public override void Setup ()
|
||||
{
|
||||
var menu = new MenuBar (new MenuBarItem [] {
|
||||
new MenuBarItem ("_File", new MenuItem [] {
|
||||
new MenuItem ("_New", "", () => New(), null, null, KeyCode.N | KeyCode.CtrlMask | KeyCode.AltMask),
|
||||
new MenuItem ("_Open", "", () => Open()),
|
||||
new MenuItem ("_Save", "", () => Save()),
|
||||
new MenuItem ("Save _As", "", () => SaveAs()),
|
||||
new MenuItem ("_Close", "", () => Close()),
|
||||
new MenuItem ("_Quit", "", () => Quit()),
|
||||
}),
|
||||
new MenuBarItem ("_About", "", () => MessageBox.Query("Notepad", "About Notepad...", "Ok"))
|
||||
});
|
||||
Application.Top.Add (menu);
|
||||
|
||||
tabView = CreateNewTabView ();
|
||||
|
||||
tabView.Style.ShowBorder = true;
|
||||
tabView.ApplyStyleChanges ();
|
||||
|
||||
// Start with only a single view but support splitting to show side by side
|
||||
var split = new TileView (1) {
|
||||
X = 0,
|
||||
Y = 1,
|
||||
Width = Dim.Fill (),
|
||||
Height = Dim.Fill (1),
|
||||
};
|
||||
split.Tiles.ElementAt (0).ContentView.Add (tabView);
|
||||
split.LineStyle = LineStyle.None;
|
||||
|
||||
Application.Top.Add (split);
|
||||
|
||||
lenStatusItem = new StatusItem (KeyCode.CharMask, "Len: ", null);
|
||||
var statusBar = new StatusBar (new StatusItem [] {
|
||||
new StatusItem(Application.QuitKey, $"{Application.QuitKey} to Quit", () => Quit()),
|
||||
|
||||
// These shortcut keys don't seem to work correctly in linux
|
||||
//new StatusItem(Key.CtrlMask | Key.N, "~^O~ Open", () => Open()),
|
||||
//new StatusItem(Key.CtrlMask | Key.N, "~^N~ New", () => New()),
|
||||
|
||||
new StatusItem(KeyCode.CtrlMask | KeyCode.S, "~^S~ Save", () => Save()),
|
||||
new StatusItem(KeyCode.CtrlMask | KeyCode.W, "~^W~ Close", () => Close()),
|
||||
lenStatusItem,
|
||||
public override void Setup ()
|
||||
{
|
||||
var menu = new MenuBar (new MenuBarItem [] {
|
||||
new MenuBarItem ("_File", new MenuItem [] {
|
||||
new MenuItem ("_New", "", () => New(), null, null, KeyCode.N | KeyCode.CtrlMask | KeyCode.AltMask),
|
||||
new MenuItem ("_Open", "", () => Open()),
|
||||
new MenuItem ("_Save", "", () => Save()),
|
||||
new MenuItem ("Save _As", "", () => SaveAs()),
|
||||
new MenuItem ("_Close", "", () => Close()),
|
||||
new MenuItem ("_Quit", "", () => Quit()),
|
||||
}),
|
||||
new MenuBarItem ("_About", "", () => MessageBox.Query("Notepad", "About Notepad...", "Ok"))
|
||||
});
|
||||
focusedTabView = tabView;
|
||||
tabView.SelectedTabChanged += TabView_SelectedTabChanged;
|
||||
tabView.Enter += (s, e) => focusedTabView = tabView;
|
||||
Application.Top.Add (menu);
|
||||
|
||||
Application.Top.Add (statusBar);
|
||||
Application.Top.Ready += (s, e) => New ();
|
||||
tabView = CreateNewTabView ();
|
||||
|
||||
tabView.Style.ShowBorder = true;
|
||||
tabView.ApplyStyleChanges ();
|
||||
|
||||
// Start with only a single view but support splitting to show side by side
|
||||
var split = new TileView (1) {
|
||||
X = 0,
|
||||
Y = 1,
|
||||
Width = Dim.Fill (),
|
||||
Height = Dim.Fill (1),
|
||||
};
|
||||
split.Tiles.ElementAt (0).ContentView.Add (tabView);
|
||||
split.LineStyle = LineStyle.None;
|
||||
|
||||
Application.Top.Add (split);
|
||||
|
||||
_lenStatusItem = new StatusItem (KeyCode.CharMask, "Len: ", null);
|
||||
var statusBar = new StatusBar (new StatusItem [] {
|
||||
new StatusItem(Application.QuitKey, $"{Application.QuitKey} to Quit", () => Quit()),
|
||||
|
||||
// These shortcut keys don't seem to work correctly in linux
|
||||
//new StatusItem(Key.CtrlMask | Key.N, "~^O~ Open", () => Open()),
|
||||
//new StatusItem(Key.CtrlMask | Key.N, "~^N~ New", () => New()),
|
||||
|
||||
new StatusItem(KeyCode.CtrlMask | KeyCode.S, "~^S~ Save", () => Save()),
|
||||
new StatusItem(KeyCode.CtrlMask | KeyCode.W, "~^W~ Close", () => Close()),
|
||||
_lenStatusItem,
|
||||
});
|
||||
_focusedTabView = tabView;
|
||||
tabView.SelectedTabChanged += TabView_SelectedTabChanged;
|
||||
tabView.Enter += (s, e) => _focusedTabView = tabView;
|
||||
|
||||
Application.Top.Add (statusBar);
|
||||
Application.Top.Ready += (s, e) => New ();
|
||||
}
|
||||
|
||||
private void TabView_SelectedTabChanged (object sender, TabChangedEventArgs e)
|
||||
{
|
||||
_lenStatusItem.Title = $"Len:{e.NewTab?.View?.Text?.Length ?? 0}";
|
||||
e.NewTab?.View?.SetFocus ();
|
||||
}
|
||||
|
||||
private void TabView_TabClicked (object sender, TabMouseEventArgs e)
|
||||
{
|
||||
// we are only interested in right clicks
|
||||
if (!e.MouseEvent.Flags.HasFlag (MouseFlags.Button3Clicked)) {
|
||||
return;
|
||||
}
|
||||
|
||||
private void TabView_SelectedTabChanged (object sender, TabChangedEventArgs e)
|
||||
{
|
||||
lenStatusItem.Title = $"Len:{e.NewTab?.View?.Text?.Length ?? 0}";
|
||||
MenuBarItem items;
|
||||
|
||||
if (e.Tab == null) {
|
||||
items = new MenuBarItem (new MenuItem [] {
|
||||
new MenuItem ($"Open", "", () => Open()),
|
||||
});
|
||||
|
||||
} else {
|
||||
|
||||
var tv = (TabView)sender;
|
||||
var t = (OpenedFile)e.Tab;
|
||||
|
||||
items = new MenuBarItem (new MenuItem [] {
|
||||
new MenuItem ($"Save", "", () => Save(_focusedTabView, e.Tab)),
|
||||
new MenuItem ($"Close", "", () => Close(tv, e.Tab)),
|
||||
null,
|
||||
new MenuItem ($"Split Up", "", () => SplitUp(tv,t)),
|
||||
new MenuItem ($"Split Down", "", () => SplitDown(tv,t)),
|
||||
new MenuItem ($"Split Right", "", () => SplitRight(tv,t)),
|
||||
new MenuItem ($"Split Left", "", () => SplitLeft(tv,t)),
|
||||
});
|
||||
}
|
||||
|
||||
private void TabView_TabClicked (object sender, TabMouseEventArgs e)
|
||||
{
|
||||
// we are only interested in right clicks
|
||||
if (!e.MouseEvent.Flags.HasFlag (MouseFlags.Button3Clicked)) {
|
||||
((View)sender).BoundsToScreen (e.MouseEvent.X, e.MouseEvent.Y, out int screenX, out int screenY, true);
|
||||
|
||||
var contextMenu = new ContextMenu (screenX, screenY, items);
|
||||
|
||||
contextMenu.Show ();
|
||||
e.MouseEvent.Handled = true;
|
||||
}
|
||||
|
||||
private void SplitUp (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (0, Orientation.Horizontal, sender, tab);
|
||||
}
|
||||
private void SplitDown (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (1, Orientation.Horizontal, sender, tab);
|
||||
|
||||
}
|
||||
private void SplitLeft (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (0, Orientation.Vertical, sender, tab);
|
||||
}
|
||||
private void SplitRight (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (1, Orientation.Vertical, sender, tab);
|
||||
}
|
||||
|
||||
private void Split (int offset, Orientation orientation, TabView sender, OpenedFile tab)
|
||||
{
|
||||
|
||||
var split = (TileView)sender.SuperView.SuperView;
|
||||
var tileIndex = split.IndexOf (sender);
|
||||
|
||||
if (tileIndex == -1) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (orientation != split.Orientation) {
|
||||
split.TrySplitTile (tileIndex, 1, out split);
|
||||
split.Orientation = orientation;
|
||||
tileIndex = 0;
|
||||
}
|
||||
|
||||
var newTile = split.InsertTile (tileIndex + offset);
|
||||
var newTabView = CreateNewTabView ();
|
||||
tab.CloneTo (newTabView);
|
||||
newTile.ContentView.Add (newTabView);
|
||||
|
||||
newTabView.EnsureFocus ();
|
||||
newTabView.FocusFirst ();
|
||||
newTabView.FocusNext ();
|
||||
}
|
||||
|
||||
private TabView CreateNewTabView ()
|
||||
{
|
||||
var tv = new TabView () {
|
||||
X = 0,
|
||||
Y = 0,
|
||||
Width = Dim.Fill (),
|
||||
Height = Dim.Fill (),
|
||||
};
|
||||
|
||||
tv.TabClicked += TabView_TabClicked;
|
||||
tv.SelectedTabChanged += TabView_SelectedTabChanged;
|
||||
tv.Enter += (s, e) => _focusedTabView = tv;
|
||||
return tv;
|
||||
}
|
||||
|
||||
private void New ()
|
||||
{
|
||||
Open (null, $"new {_numbeOfNewTabs++}");
|
||||
}
|
||||
|
||||
private void Close ()
|
||||
{
|
||||
Close (_focusedTabView, _focusedTabView.SelectedTab);
|
||||
}
|
||||
private void Close (TabView tv, Tab tabToClose)
|
||||
{
|
||||
var tab = tabToClose as OpenedFile;
|
||||
|
||||
if (tab == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
_focusedTabView = tv;
|
||||
|
||||
if (tab.UnsavedChanges) {
|
||||
|
||||
int result = MessageBox.Query ("Save Changes", $"Save changes to {tab.Text.TrimEnd ('*')}", "Yes", "No", "Cancel");
|
||||
|
||||
if (result == -1 || result == 2) {
|
||||
|
||||
// user cancelled
|
||||
return;
|
||||
}
|
||||
|
||||
MenuBarItem items;
|
||||
|
||||
if (e.Tab == null) {
|
||||
items = new MenuBarItem (new MenuItem [] {
|
||||
new MenuItem ($"Open", "", () => Open()),
|
||||
});
|
||||
|
||||
} else {
|
||||
|
||||
var tv = (TabView)sender;
|
||||
var t = (OpenedFile)e.Tab;
|
||||
|
||||
items = new MenuBarItem (new MenuItem [] {
|
||||
new MenuItem ($"Save", "", () => Save(focusedTabView, e.Tab)),
|
||||
new MenuItem ($"Close", "", () => Close(tv, e.Tab)),
|
||||
null,
|
||||
new MenuItem ($"Split Up", "", () => SplitUp(tv,t)),
|
||||
new MenuItem ($"Split Down", "", () => SplitDown(tv,t)),
|
||||
new MenuItem ($"Split Right", "", () => SplitRight(tv,t)),
|
||||
new MenuItem ($"Split Left", "", () => SplitLeft(tv,t)),
|
||||
});
|
||||
if (result == 0) {
|
||||
if (tab.File == null) {
|
||||
SaveAs ();
|
||||
} else {
|
||||
tab.Save ();
|
||||
}
|
||||
}
|
||||
|
||||
((View)sender).BoundsToScreen (e.MouseEvent.X, e.MouseEvent.Y, out int screenX, out int screenY, true);
|
||||
|
||||
var contextMenu = new ContextMenu (screenX, screenY, items);
|
||||
|
||||
contextMenu.Show ();
|
||||
e.MouseEvent.Handled = true;
|
||||
}
|
||||
|
||||
private void SplitUp (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (0, Orientation.Horizontal, sender, tab);
|
||||
}
|
||||
private void SplitDown (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (1, Orientation.Horizontal, sender, tab);
|
||||
// close and dispose the tab
|
||||
tv.RemoveTab (tab);
|
||||
tab.View.Dispose ();
|
||||
_focusedTabView = tv;
|
||||
|
||||
}
|
||||
private void SplitLeft (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (0, Orientation.Vertical, sender, tab);
|
||||
}
|
||||
private void SplitRight (TabView sender, OpenedFile tab)
|
||||
{
|
||||
Split (1, Orientation.Vertical, sender, tab);
|
||||
}
|
||||
if (tv.Tabs.Count == 0) {
|
||||
|
||||
private void Split (int offset, Orientation orientation, TabView sender, OpenedFile tab)
|
||||
{
|
||||
var split = (TileView)tv.SuperView.SuperView;
|
||||
|
||||
var split = (TileView)sender.SuperView.SuperView;
|
||||
var tileIndex = split.IndexOf (sender);
|
||||
|
||||
if (tileIndex == -1) {
|
||||
// if it is the last TabView on screen don't drop it or we will
|
||||
// be unable to open new docs!
|
||||
if (split.IsRootTileView () && split.Tiles.Count == 1) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (orientation != split.Orientation) {
|
||||
split.TrySplitTile (tileIndex, 1, out split);
|
||||
split.Orientation = orientation;
|
||||
tileIndex = 0;
|
||||
var tileIndex = split.IndexOf (tv);
|
||||
split.RemoveTile (tileIndex);
|
||||
|
||||
if (split.Tiles.Count == 0) {
|
||||
var parent = split.GetParentTileView ();
|
||||
|
||||
if (parent == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
var idx = parent.IndexOf (split);
|
||||
|
||||
if (idx == -1) {
|
||||
return;
|
||||
}
|
||||
|
||||
parent.RemoveTile (idx);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var newTile = split.InsertTile (tileIndex + offset);
|
||||
var newTabView = CreateNewTabView ();
|
||||
tab.CloneTo (newTabView);
|
||||
newTile.ContentView.Add (newTabView);
|
||||
private void Open ()
|
||||
{
|
||||
var open = new OpenDialog ("Open") { AllowsMultipleSelection = true };
|
||||
|
||||
newTabView.EnsureFocus ();
|
||||
newTabView.FocusFirst ();
|
||||
newTabView.FocusNext ();
|
||||
Application.Run (open);
|
||||
|
||||
if (!open.Canceled) {
|
||||
|
||||
foreach (var path in open.FilePaths) {
|
||||
|
||||
if (string.IsNullOrEmpty (path) || !File.Exists (path)) {
|
||||
return;
|
||||
}
|
||||
|
||||
// TODO should open in focused TabView
|
||||
Open (new FileInfo (path), Path.GetFileName (path));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Creates a new tab with initial text
|
||||
/// </summary>
|
||||
/// <param name="fileInfo">File that was read or null if a new blank document</param>
|
||||
private void Open (FileInfo fileInfo, string tabName)
|
||||
{
|
||||
var tab = new OpenedFile (_focusedTabView, tabName, fileInfo);
|
||||
_focusedTabView.AddTab (tab, true);
|
||||
}
|
||||
|
||||
public void Save ()
|
||||
{
|
||||
Save (_focusedTabView, _focusedTabView.SelectedTab);
|
||||
}
|
||||
public void Save (TabView tabViewToSave, Tab tabToSave)
|
||||
{
|
||||
var tab = tabToSave as OpenedFile;
|
||||
|
||||
if (tab == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
private TabView CreateNewTabView ()
|
||||
if (tab.File == null) {
|
||||
SaveAs ();
|
||||
}
|
||||
|
||||
tab.Save ();
|
||||
tabViewToSave.SetNeedsDisplay ();
|
||||
}
|
||||
|
||||
public bool SaveAs ()
|
||||
{
|
||||
var tab = _focusedTabView.SelectedTab as OpenedFile;
|
||||
|
||||
if (tab == null) {
|
||||
return false;
|
||||
}
|
||||
|
||||
var fd = new SaveDialog ();
|
||||
Application.Run (fd);
|
||||
|
||||
if (string.IsNullOrWhiteSpace (fd.Path)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fd.Canceled) {
|
||||
return false;
|
||||
}
|
||||
|
||||
tab.File = new FileInfo (fd.Path);
|
||||
tab.Text = fd.FileName;
|
||||
tab.Save ();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
private class OpenedFile : Tab {
|
||||
public FileInfo File { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// The text of the tab the last time it was saved
|
||||
/// </summary>
|
||||
/// <value></value>
|
||||
public string SavedText { get; set; }
|
||||
|
||||
public bool UnsavedChanges => !string.Equals (SavedText, View.Text);
|
||||
|
||||
public OpenedFile (TabView parent, string name, FileInfo file)
|
||||
: base (name, CreateTextView (file))
|
||||
{
|
||||
var tv = new TabView () {
|
||||
File = file;
|
||||
SavedText = View.Text;
|
||||
RegisterTextViewEvents (parent);
|
||||
}
|
||||
|
||||
private void RegisterTextViewEvents (TabView parent)
|
||||
{
|
||||
var textView = (TextView)View;
|
||||
// when user makes changes rename tab to indicate unsaved
|
||||
textView.KeyUp += (s, k) => {
|
||||
|
||||
// if current text doesn't match saved text
|
||||
var areDiff = this.UnsavedChanges;
|
||||
|
||||
if (areDiff) {
|
||||
if (!Text.EndsWith ('*')) {
|
||||
|
||||
Text = Text + '*';
|
||||
parent.SetNeedsDisplay ();
|
||||
}
|
||||
} else {
|
||||
|
||||
if (Text.EndsWith ('*')) {
|
||||
|
||||
Text = Text.TrimEnd ('*');
|
||||
parent.SetNeedsDisplay ();
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
private static View CreateTextView (FileInfo file)
|
||||
{
|
||||
string initialText = string.Empty;
|
||||
if (file != null && file.Exists) {
|
||||
|
||||
initialText = System.IO.File.ReadAllText (file.FullName);
|
||||
}
|
||||
|
||||
return new TextView () {
|
||||
X = 0,
|
||||
Y = 0,
|
||||
Width = Dim.Fill (),
|
||||
Height = Dim.Fill (),
|
||||
Text = initialText,
|
||||
AllowsTab = false,
|
||||
};
|
||||
|
||||
tv.TabClicked += TabView_TabClicked;
|
||||
tv.SelectedTabChanged += TabView_SelectedTabChanged;
|
||||
tv.Enter += (s, e) => focusedTabView = tv;
|
||||
return tv;
|
||||
}
|
||||
|
||||
private void New ()
|
||||
public OpenedFile CloneTo (TabView other)
|
||||
{
|
||||
Open (null, $"new {numbeOfNewTabs++}");
|
||||
var newTab = new OpenedFile (other, base.Text.ToString (), File);
|
||||
other.AddTab (newTab, true);
|
||||
return newTab;
|
||||
}
|
||||
|
||||
private void Close ()
|
||||
internal void Save ()
|
||||
{
|
||||
Close (focusedTabView, focusedTabView.SelectedTab);
|
||||
}
|
||||
private void Close (TabView tv, Tab tabToClose)
|
||||
{
|
||||
var tab = tabToClose as OpenedFile;
|
||||
var newText = View.Text;
|
||||
|
||||
if (tab == null) {
|
||||
if (File is null || string.IsNullOrWhiteSpace (File.FullName)) {
|
||||
return;
|
||||
}
|
||||
|
||||
focusedTabView = tv;
|
||||
System.IO.File.WriteAllText (File.FullName, newText);
|
||||
SavedText = newText;
|
||||
|
||||
if (tab.UnsavedChanges) {
|
||||
|
||||
int result = MessageBox.Query ("Save Changes", $"Save changes to {tab.Text.TrimEnd ('*')}", "Yes", "No", "Cancel");
|
||||
|
||||
if (result == -1 || result == 2) {
|
||||
|
||||
// user cancelled
|
||||
return;
|
||||
}
|
||||
|
||||
if (result == 0) {
|
||||
if (tab.File == null) {
|
||||
SaveAs ();
|
||||
} else {
|
||||
tab.Save ();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// close and dispose the tab
|
||||
tv.RemoveTab (tab);
|
||||
tab.View.Dispose ();
|
||||
focusedTabView = tv;
|
||||
|
||||
if (tv.Tabs.Count == 0) {
|
||||
|
||||
var split = (TileView)tv.SuperView.SuperView;
|
||||
|
||||
// if it is the last TabView on screen don't drop it or we will
|
||||
// be unable to open new docs!
|
||||
if (split.IsRootTileView () && split.Tiles.Count == 1) {
|
||||
return;
|
||||
}
|
||||
|
||||
var tileIndex = split.IndexOf (tv);
|
||||
split.RemoveTile (tileIndex);
|
||||
|
||||
if (split.Tiles.Count == 0) {
|
||||
var parent = split.GetParentTileView ();
|
||||
|
||||
if (parent == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
var idx = parent.IndexOf (split);
|
||||
|
||||
if (idx == -1) {
|
||||
return;
|
||||
}
|
||||
|
||||
parent.RemoveTile (idx);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void Open ()
|
||||
{
|
||||
var open = new OpenDialog ("Open") { AllowsMultipleSelection = true };
|
||||
|
||||
Application.Run (open);
|
||||
|
||||
if (!open.Canceled) {
|
||||
|
||||
foreach (var path in open.FilePaths) {
|
||||
|
||||
if (string.IsNullOrEmpty (path) || !File.Exists (path)) {
|
||||
return;
|
||||
}
|
||||
|
||||
// TODO should open in focused TabView
|
||||
Open (new FileInfo (path), Path.GetFileName (path));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Creates a new tab with initial text
|
||||
/// </summary>
|
||||
/// <param name="fileInfo">File that was read or null if a new blank document</param>
|
||||
private void Open (FileInfo fileInfo, string tabName)
|
||||
{
|
||||
var tab = new OpenedFile (focusedTabView, tabName, fileInfo);
|
||||
focusedTabView.AddTab (tab, true);
|
||||
}
|
||||
|
||||
public void Save ()
|
||||
{
|
||||
Save (focusedTabView, focusedTabView.SelectedTab);
|
||||
}
|
||||
public void Save (TabView tabViewToSave, Tab tabToSave)
|
||||
{
|
||||
var tab = tabToSave as OpenedFile;
|
||||
|
||||
if (tab == null) {
|
||||
return;
|
||||
}
|
||||
|
||||
if (tab.File == null) {
|
||||
SaveAs ();
|
||||
}
|
||||
|
||||
tab.Save ();
|
||||
tabViewToSave.SetNeedsDisplay ();
|
||||
}
|
||||
|
||||
public bool SaveAs ()
|
||||
{
|
||||
var tab = focusedTabView.SelectedTab as OpenedFile;
|
||||
|
||||
if (tab == null) {
|
||||
return false;
|
||||
}
|
||||
|
||||
var fd = new SaveDialog ();
|
||||
Application.Run (fd);
|
||||
|
||||
if (string.IsNullOrWhiteSpace (fd.Path)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fd.Canceled) {
|
||||
return false;
|
||||
}
|
||||
|
||||
tab.File = new FileInfo (fd.Path);
|
||||
tab.Text = fd.FileName;
|
||||
tab.Save ();
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
private class OpenedFile : Tab {
|
||||
public FileInfo File { get; set; }
|
||||
|
||||
/// <summary>
|
||||
/// The text of the tab the last time it was saved
|
||||
/// </summary>
|
||||
/// <value></value>
|
||||
public string SavedText { get; set; }
|
||||
|
||||
public bool UnsavedChanges => !string.Equals (SavedText, View.Text);
|
||||
|
||||
public OpenedFile (TabView parent, string name, FileInfo file)
|
||||
: base (name, CreateTextView (file))
|
||||
{
|
||||
|
||||
File = file;
|
||||
SavedText = View.Text;
|
||||
RegisterTextViewEvents (parent);
|
||||
}
|
||||
|
||||
private void RegisterTextViewEvents (TabView parent)
|
||||
{
|
||||
var textView = (TextView)View;
|
||||
// when user makes changes rename tab to indicate unsaved
|
||||
textView.KeyUp += (s, k) => {
|
||||
|
||||
// if current text doesn't match saved text
|
||||
var areDiff = this.UnsavedChanges;
|
||||
|
||||
if (areDiff) {
|
||||
if (!this.Text.EndsWith ('*')) {
|
||||
|
||||
this.Text = this.Text + '*';
|
||||
parent.SetNeedsDisplay ();
|
||||
}
|
||||
} else {
|
||||
|
||||
if (Text.EndsWith ('*')) {
|
||||
|
||||
Text = Text.TrimEnd ('*');
|
||||
parent.SetNeedsDisplay ();
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
private static View CreateTextView (FileInfo file)
|
||||
{
|
||||
string initialText = string.Empty;
|
||||
if (file != null && file.Exists) {
|
||||
|
||||
initialText = System.IO.File.ReadAllText (file.FullName);
|
||||
}
|
||||
|
||||
return new TextView () {
|
||||
X = 0,
|
||||
Y = 0,
|
||||
Width = Dim.Fill (),
|
||||
Height = Dim.Fill (),
|
||||
Text = initialText,
|
||||
AllowsTab = false,
|
||||
};
|
||||
}
|
||||
public OpenedFile CloneTo (TabView other)
|
||||
{
|
||||
var newTab = new OpenedFile (other, base.Text.ToString (), File);
|
||||
other.AddTab (newTab, true);
|
||||
return newTab;
|
||||
}
|
||||
internal void Save ()
|
||||
{
|
||||
var newText = View.Text;
|
||||
|
||||
System.IO.File.WriteAllText (File.FullName, newText);
|
||||
SavedText = newText;
|
||||
|
||||
Text = Text.TrimEnd ('*');
|
||||
}
|
||||
}
|
||||
|
||||
private void Quit ()
|
||||
{
|
||||
Application.RequestStop ();
|
||||
Text = Text.TrimEnd ('*');
|
||||
}
|
||||
}
|
||||
|
||||
private void Quit ()
|
||||
{
|
||||
Application.RequestStop ();
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user