diff --git a/Example/demo.cs b/Example/demo.cs
index 68307007a..31e26afa1 100644
--- a/Example/demo.cs
+++ b/Example/demo.cs
@@ -586,7 +586,7 @@ static class Demo {
new MenuItemDetails ("F_ind", "", null),
new MenuItemDetails ("_Replace", "", null),
new MenuItemDetails ("_Item1", "", null),
- new MenuItemDetails ("_Not From Sub Menu", "", null)
+ new MenuItemDetails ("_Also From Sub Menu", "", null)
};
menuItems [0].Action = () => ShowMenuItem (menuItems [0]);
@@ -609,8 +609,8 @@ static class Demo {
new MenuItem ("_Copy", "", Copy),
new MenuItem ("C_ut", "", Cut),
new MenuItem ("_Paste", "", Paste),
- new MenuItem ("_Find and Replace",
- new MenuBarItem (new MenuItem[] {menuItems [0], menuItems [1] })),
+ new MenuBarItem ("_Find and Replace",
+ new MenuItem [] { menuItems [0], menuItems [1] }),
menuItems[3]
}),
new MenuBarItem ("_List Demos", new MenuItem [] {
@@ -622,18 +622,13 @@ static class Demo {
new MenuItem ("_Show text alignments", "", () => ShowTextAlignments ()),
new MenuItem ("_OnKeyDown/Press/Up", "", () => OnKeyDownPressUpDemo ())
}),
- new MenuBarItem ("_Test Menu and SubMenus", new MenuItem [] {
- new MenuItem ("SubMenu1Item_1",
- new MenuBarItem (new MenuItem[] {
- new MenuItem ("SubMenu2Item_1",
- new MenuBarItem (new MenuItem [] {
- new MenuItem ("SubMenu3Item_1",
- new MenuBarItem (new MenuItem [] { menuItems [2] })
- )
- })
- )
+ new MenuBarItem ("_Test Menu and SubMenus", new MenuBarItem [] {
+ new MenuBarItem ("SubMenu1Item_1", new MenuBarItem [] {
+ new MenuBarItem ("SubMenu2Item_1", new MenuBarItem [] {
+ new MenuBarItem ("SubMenu3Item_1",
+ new MenuItem [] { menuItems [2] })
})
- )
+ })
}),
new MenuBarItem ("_About...", "Demonstrates top-level menu item", () => MessageBox.ErrorQuery (50, 7, "About Demo", "This is a demo app for gui.cs", "Ok")),
});
diff --git a/Terminal.Gui/Core/Toplevel.cs b/Terminal.Gui/Core/Toplevel.cs
index 8d193c9fb..16bdcfd4e 100644
--- a/Terminal.Gui/Core/Toplevel.cs
+++ b/Terminal.Gui/Core/Toplevel.cs
@@ -253,26 +253,26 @@ namespace Terminal.Gui {
public override void Add (View view)
{
if (this == Application.Top) {
- if (view is MenuBar)
- MenuBar = view as MenuBar;
- if (view is StatusBar)
- StatusBar = view as StatusBar;
+ AddMenuStatusBar (view);
}
base.Add (view);
}
+ internal void AddMenuStatusBar (View view)
+ {
+ if (view is MenuBar) {
+ MenuBar = view as MenuBar;
+ }
+ if (view is StatusBar) {
+ StatusBar = view as StatusBar;
+ }
+ }
+
///
public override void Remove (View view)
{
- if (this is Toplevel && ((Toplevel)this).MenuBar != null) {
- if (view is MenuBar) {
- MenuBar?.Dispose ();
- MenuBar = null;
- }
- if (view is StatusBar) {
- StatusBar?.Dispose ();
- StatusBar = null;
- }
+ if (this is Toplevel toplevel && toplevel.MenuBar != null) {
+ RemoveMenuStatusBar (view);
}
base.Remove (view);
}
@@ -289,6 +289,18 @@ namespace Terminal.Gui {
base.RemoveAll ();
}
+ internal void RemoveMenuStatusBar (View view)
+ {
+ if (view is MenuBar) {
+ MenuBar?.Dispose ();
+ MenuBar = null;
+ }
+ if (view is StatusBar) {
+ StatusBar?.Dispose ();
+ StatusBar = null;
+ }
+ }
+
internal void EnsureVisibleBounds (Toplevel top, int x, int y, out int nx, out int ny)
{
nx = Math.Max (x, 0);
@@ -341,15 +353,16 @@ namespace Terminal.Gui {
top.Y = ny;
}
}
- if (StatusBar != null) {
+ if (top.StatusBar != null) {
if (ny + top.Frame.Height > top.Frame.Height - 1) {
if (top.Height is Dim.DimFill)
top.Height = Dim.Fill () - 1;
}
- if (StatusBar.Frame.Y != Frame.Height - 1) {
- StatusBar.Y = Frame.Height - 1;
- SetNeedsDisplay ();
+ if (top.StatusBar.Frame.Y != top.Frame.Height - 1) {
+ top.StatusBar.Y = top.Frame.Height - 1;
+ top.LayoutSubviews ();
}
+ top.BringSubviewToFront (top.StatusBar);
}
}
diff --git a/Terminal.Gui/Core/Window.cs b/Terminal.Gui/Core/Window.cs
index 2d6ed1bbb..21f13024c 100644
--- a/Terminal.Gui/Core/Window.cs
+++ b/Terminal.Gui/Core/Window.cs
@@ -135,23 +135,28 @@ namespace Terminal.Gui {
public override void Add (View view)
{
contentView.Add (view);
- if (view.CanFocus)
+ if (view.CanFocus) {
CanFocus = true;
+ }
+ AddMenuStatusBar (view);
}
///
public override void Remove (View view)
{
- if (view == null)
+ if (view == null) {
return;
+ }
SetNeedsDisplay ();
var touched = view.Frame;
contentView.Remove (view);
- if (contentView.InternalSubviews.Count < 1)
- this.CanFocus = false;
+ if (contentView.InternalSubviews.Count < 1) {
+ CanFocus = false;
+ }
+ RemoveMenuStatusBar (view);
}
///
diff --git a/Terminal.Gui/Views/Menu.cs b/Terminal.Gui/Views/Menu.cs
index 5345a456b..c82c3173a 100644
--- a/Terminal.Gui/Views/Menu.cs
+++ b/Terminal.Gui/Views/Menu.cs
@@ -56,8 +56,9 @@ namespace Terminal.Gui {
/// Title for the menu item.
/// Help text to display.
/// Action to invoke when the menu item is activated.
- /// Function to determine if the action can currently be executred.
- public MenuItem (ustring title, string help, Action action, Func canExecute = null)
+ /// Function to determine if the action can currently be executed.
+ /// The parent of this menu item.
+ public MenuItem (ustring title, ustring help, Action action, Func canExecute = null, MenuItem parent = null)
{
Title = title ?? "";
Help = help ?? "";
@@ -75,17 +76,7 @@ namespace Terminal.Gui {
nextIsHot = false;
}
}
- }
-
- ///
- /// Initializes a new instance of
- ///
- /// Title for the menu item.
- /// The menu sub-menu.
- public MenuItem (ustring title, MenuBarItem subMenu) : this (title, "", null)
- {
- SubMenu = subMenu;
- IsFromSubMenu = true;
+ Parent = parent;
}
///
@@ -146,11 +137,15 @@ namespace Terminal.Gui {
public MenuItemCheckStyle CheckType { get; set; }
///
- /// Gets or sets the parent for this
+ /// Gets or sets the parent for this .
///
/// The parent.
- internal MenuBarItem SubMenu { get; set; }
- internal bool IsFromSubMenu { get; set; }
+ public MenuItem Parent { get; internal set; }
+
+ ///
+ /// Gets if this is from a sub-menu.
+ ///
+ internal bool IsFromSubMenu { get {return Parent != null; } }
///
/// Merely a debugging aid to see the interaction with main
@@ -179,8 +174,9 @@ namespace Terminal.Gui {
/// Title for the menu item.
/// Help text to display.
/// Action to invoke when the menu item is activated.
- /// Function to determine if the action can currently be executred.
- public MenuBarItem (ustring title, string help, Action action, Func canExecute = null) : base (title, help, action, canExecute)
+ /// Function to determine if the action can currently be executed.
+ /// The parent of this if exist, otherwise is null.
+ public MenuBarItem (ustring title, ustring help, Action action, Func canExecute = null, MenuItem parent = null) : base (title, help, action, canExecute, parent)
{
SetTitle (title ?? "");
Children = null;
@@ -191,12 +187,17 @@ namespace Terminal.Gui {
///
/// Title for the menu item.
/// The items in the current menu.
- public MenuBarItem (ustring title, MenuItem [] children)
+ /// The parent of this if exist, otherwise is null.
+ public MenuBarItem (ustring title, MenuItem [] children, MenuItem parent = null)
{
- if (children == null)
+ if (children == null) {
throw new ArgumentNullException (nameof (children), "The parameter cannot be null. Use an empty array instead.");
-
+ }
SetTitle (title ?? "");
+ if (parent != null) {
+ Parent = parent;
+ }
+ SetChildrensParent (children);
Children = children;
}
@@ -204,24 +205,78 @@ namespace Terminal.Gui {
/// Initializes a new .
///
/// The items in the current menu.
- public MenuBarItem (MenuItem [] children) : this (new string (' ', GetMaxTitleLength (children)), children) { }
+ public MenuBarItem (MenuItem [] children) : this ("", children) { }
///
/// Initializes a new .
///
- public MenuBarItem () : this (children: new MenuItem [] { }) { }
+ public MenuBarItem () : this (children: new MenuItem [] { }) { }
- static int GetMaxTitleLength (MenuItem [] children)
+ //static int GetMaxTitleLength (MenuItem [] children)
+ //{
+ // int maxLength = 0;
+ // foreach (var item in children) {
+ // int len = GetMenuBarItemLength (item.Title);
+ // if (len > maxLength)
+ // maxLength = len;
+ // item.IsFromSubMenu = true;
+ // }
+
+ // return maxLength;
+ //}
+
+ void SetChildrensParent (MenuItem [] childrens)
{
- int maxLength = 0;
- foreach (var item in children) {
- int len = GetMenuBarItemLength (item.Title);
- if (len > maxLength)
- maxLength = len;
- item.IsFromSubMenu = true;
+ foreach (var child in childrens) {
+ if (child != null && child.Parent == null) {
+ child.Parent = this;
+ }
}
+ }
- return maxLength;
+ ///
+ /// Check if the children parameter is a .
+ ///
+ ///
+ /// Returns a or null otherwise.
+ public MenuBarItem SubMenu (MenuItem children)
+ {
+ return children as MenuBarItem;
+ }
+
+ ///
+ /// Check if the parameter is a child of this.
+ ///
+ ///
+ /// Returns true if it is a child of this. false otherwise.
+ public bool IsSubMenuOf (MenuItem menuItem)
+ {
+ foreach (var child in Children) {
+ if (child == menuItem && child.Parent == menuItem.Parent) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ ///
+ /// Get the index of the parameter.
+ ///
+ ///
+ /// Returns a value bigger than -1 if the is a child of this.
+ public int GetChildrenIndex (MenuItem children)
+ {
+ if (Children?.Length == 0) {
+ return -1;
+ }
+ int i = 0;
+ foreach (var child in Children) {
+ if (child == children) {
+ return i;
+ }
+ i++;
+ }
+ return -1;
}
void SetTitle (ustring title)
@@ -229,10 +284,9 @@ namespace Terminal.Gui {
if (title == null)
title = "";
Title = title;
- TitleLength = GetMenuBarItemLength (Title);
}
- static int GetMenuBarItemLength (ustring title)
+ int GetMenuBarItemLength (ustring title)
{
int len = 0;
foreach (var ch in title) {
@@ -255,9 +309,10 @@ namespace Terminal.Gui {
///
/// The children.
public MenuItem [] Children { get; set; }
- internal int TitleLength { get; private set; }
- internal bool IsTopLevel { get => (Children == null || Children.Length == 0); }
+ internal int TitleLength => GetMenuBarItemLength (Title);
+
+ internal bool IsTopLevel { get => Parent == null && (Children == null || Children.Length == 0); }
}
@@ -328,7 +383,7 @@ namespace Terminal.Gui {
for (int p = 0; p < Frame.Width - 2; p++)
if (item == null)
Driver.AddRune (Driver.HLine);
- else if (p == Frame.Width - 3 && barItems.Children [i].SubMenu != null)
+ else if (p == Frame.Width - 3 && barItems.SubMenu(barItems.Children [i]) != null)
Driver.AddRune (Driver.RightArrow);
else
Driver.AddRune (' ');
@@ -494,7 +549,7 @@ namespace Terminal.Gui {
} else {
disabled = false;
}
- if (host.UseKeysUpDownAsKeysLeftRight && barItems.Children [current]?.SubMenu != null &&
+ if (host.UseKeysUpDownAsKeysLeftRight && barItems.SubMenu (barItems.Children [current]) != null &&
!disabled && host.IsMenuOpen) {
CheckSubMenu ();
break;
@@ -541,7 +596,7 @@ namespace Terminal.Gui {
} else {
disabled = false;
}
- if (host.UseKeysUpDownAsKeysLeftRight && barItems.Children [current]?.SubMenu != null &&
+ if (host.UseKeysUpDownAsKeysLeftRight && barItems.SubMenu (barItems.Children [current]) != null &&
!disabled && host.IsMenuOpen) {
CheckSubMenu ();
break;
@@ -592,7 +647,7 @@ namespace Terminal.Gui {
if (current == -1 || barItems.Children [current] == null) {
return;
}
- var subMenu = barItems.Children [current].SubMenu;
+ var subMenu = barItems.SubMenu (barItems.Children [current]);
if (subMenu != null) {
int pos = -1;
if (host.openSubMenu != null) {
@@ -602,7 +657,7 @@ namespace Terminal.Gui {
host.CloseMenu (false, true);
}
host.Activate (host.selected, pos, subMenu);
- } else if (host.openSubMenu != null && !barItems.Children [current].IsFromSubMenu) {
+ } else if (host.openSubMenu?.Last ().barItems.IsSubMenuOf (barItems.Children [current]) == false) {
host.CloseMenu (false, true);
} else {
SetNeedsDisplay ();
@@ -1003,7 +1058,7 @@ namespace Terminal.Gui {
switch (isSubMenu) {
case false:
if (openMenu != null) {
- SuperView.Remove (openMenu);
+ SuperView?.Remove (openMenu);
}
SetNeedsDisplay ();
if (previousFocused != null && previousFocused is Menu && openMenu != null && previousFocused.ToString () != openCurrentMenu.ToString ())
@@ -1016,13 +1071,11 @@ namespace Terminal.Gui {
LastFocused = lastFocused;
lastFocused = null;
if (LastFocused != null) {
- CanFocus = false;
if (!reopen) {
selected = -1;
}
LastFocused.SetFocus ();
} else {
- CanFocus = true;
SetFocus ();
PositionCursor ();
}
@@ -1175,11 +1228,12 @@ namespace Terminal.Gui {
CloseMenu (false, true);
NextMenu ();
} else {
- if ((selectedSub == -1 || openSubMenu == null || openSubMenu?.Count == selectedSub) && openCurrentMenu.barItems.Children [openCurrentMenu.current].SubMenu == null) {
+ var subMenu = openCurrentMenu.barItems.SubMenu (openCurrentMenu.barItems.Children [openCurrentMenu.current]);
+ if ((selectedSub == -1 || openSubMenu == null || openSubMenu?.Count == selectedSub) && subMenu == null) {
if (openSubMenu != null)
CloseMenu (false, true);
NextMenu ();
- } else if (openCurrentMenu.barItems.Children [openCurrentMenu.current].SubMenu != null ||
+ } else if (subMenu != null ||
!openCurrentMenu.barItems.Children [openCurrentMenu.current].IsFromSubMenu)
selectedSub++;
else
diff --git a/UICatalog/Scenarios/DynamicMenuBar.cs b/UICatalog/Scenarios/DynamicMenuBar.cs
new file mode 100644
index 000000000..8571ea02c
--- /dev/null
+++ b/UICatalog/Scenarios/DynamicMenuBar.cs
@@ -0,0 +1,931 @@
+using NStack;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Text;
+using Terminal.Gui;
+
+namespace UICatalog {
+ [ScenarioMetadata (Name: "Dynamic MenuBar", Description: "Demonstrates how to add and remove a MenuBar, Menus and change titles dynamically.")]
+ [ScenarioCategory ("Dynamic")]
+ class DynamicMenuBar : Scenario {
+ public override void Run ()
+ {
+ Top.Add (new DynamicMenuBarSample (Win.Title));
+ base.Run ();
+ }
+ }
+
+ class DynamicMenuItemList {
+ public ustring Title { get; set; }
+ public MenuItem MenuItem { get; set; }
+
+ public DynamicMenuItemList () { }
+
+ public DynamicMenuItemList (ustring title, MenuItem menuItem)
+ {
+ Title = title;
+ MenuItem = menuItem;
+ }
+
+ public override string ToString () => $"{Title}, {MenuItem}";
+ }
+
+ class DynamicMenuItem {
+ public ustring title = "_New";
+ public ustring help = "";
+ public ustring action = "";
+ public bool isTopLevel;
+ public bool hasSubMenu;
+ public MenuItemCheckStyle checkStyle;
+
+ public DynamicMenuItem () { }
+
+ public DynamicMenuItem (ustring title)
+ {
+ this.title = title;
+ }
+
+ public DynamicMenuItem (ustring title, ustring help, ustring action, bool isTopLevel, bool hasSubMenu, MenuItemCheckStyle checkStyle = MenuItemCheckStyle.NoCheck)
+ {
+ this.title = title;
+ this.help = help;
+ this.action = action;
+ this.isTopLevel = isTopLevel;
+ this.hasSubMenu = hasSubMenu;
+ this.checkStyle = checkStyle;
+ }
+ }
+
+ class DynamicMenuBarSample : Window {
+ MenuBar _menuBar;
+ MenuItem _currentMenuBarItem;
+ int _currentSelectedMenuBar;
+ MenuItem _currentEditMenuBarItem;
+
+ public DynamicMenuItemModel DataContext { get; set; }
+
+ public DynamicMenuBarSample (ustring title) : base (title)
+ {
+ DataContext = new DynamicMenuItemModel ();
+
+ var _frmMenu = new FrameView ("Menus:") {
+ Y = 7,
+ Width = Dim.Percent (50),
+ Height = Dim.Fill ()
+ };
+
+ var _btnAddMenuBar = new Button ("Add a MenuBar") {
+ Y = 1,
+ };
+ _frmMenu.Add (_btnAddMenuBar);
+
+ var _btnMenuBarUp = new Button ("^") {
+ X = Pos.Center ()
+ };
+ _frmMenu.Add (_btnMenuBarUp);
+
+ var _btnMenuBarDown = new Button ("v") {
+ X = Pos.Center (),
+ Y = Pos.Bottom (_btnMenuBarUp)
+ };
+ _frmMenu.Add (_btnMenuBarDown);
+
+ var _btnRemoveMenuBar = new Button ("Remove a MenuBar") {
+ Y = 1
+ };
+ _btnRemoveMenuBar.X = Pos.AnchorEnd () - (Pos.Right (_btnRemoveMenuBar) - Pos.Left (_btnRemoveMenuBar));
+ _frmMenu.Add (_btnRemoveMenuBar);
+
+ var _btnPrevious = new Button ("<") {
+ X = Pos.Left (_btnAddMenuBar),
+ Y = Pos.Top (_btnAddMenuBar) + 2
+ };
+ _frmMenu.Add (_btnPrevious);
+
+ var _btnAdd = new Button (" Add ") {
+ Y = Pos.Top (_btnPrevious) + 2,
+ };
+ _btnAdd.X = Pos.AnchorEnd () - (Pos.Right (_btnAdd) - Pos.Left (_btnAdd));
+ _frmMenu.Add (_btnAdd);
+
+ var _btnNext = new Button (">") {
+ X = Pos.X (_btnAdd),
+ Y = Pos.Top (_btnPrevious),
+ };
+ _frmMenu.Add (_btnNext);
+
+ var _lblMenuBar = new Label () {
+ ColorScheme = Colors.Dialog,
+ TextAlignment = TextAlignment.Centered,
+ X = Pos.Right (_btnPrevious) + 1,
+ Y = Pos.Top (_btnPrevious),
+ Width = Dim.Fill () - Dim.Width (_btnAdd) - 1,
+ Height = 1
+ };
+ _frmMenu.Add (_lblMenuBar);
+ _lblMenuBar.WantMousePositionReports = true;
+ _lblMenuBar.CanFocus = true;
+
+ var _lblParent = new Label () {
+ TextAlignment = TextAlignment.Centered,
+ X = Pos.Right (_btnPrevious) + 1,
+ Y = Pos.Top (_btnPrevious) + 1,
+ Width = Dim.Fill () - Dim.Width (_btnAdd) - 1
+ };
+ _frmMenu.Add (_lblParent);
+
+ var _btnPreviowsParent = new Button ("..") {
+ X = Pos.Left (_btnAddMenuBar),
+ Y = Pos.Top (_btnPrevious) + 1
+ };
+ _frmMenu.Add (_btnPreviowsParent);
+
+ var _lstMenus = new ListView (new List ()) {
+ ColorScheme = Colors.Dialog,
+ X = Pos.Right (_btnPrevious) + 1,
+ Y = Pos.Top (_btnPrevious) + 2,
+ Width = _lblMenuBar.Width,
+ Height = Dim.Fill (),
+ };
+ _frmMenu.Add (_lstMenus);
+
+ _lblMenuBar.TabIndex = _btnPrevious.TabIndex + 1;
+ _lstMenus.TabIndex = _lblMenuBar.TabIndex + 1;
+ _btnNext.TabIndex = _lstMenus.TabIndex + 1;
+ _btnAdd.TabIndex = _btnNext.TabIndex + 1;
+
+ var _btnRemove = new Button ("Remove") {
+ X = Pos.Left (_btnAdd),
+ Y = Pos.Top (_btnAdd) + 1
+ };
+ _frmMenu.Add (_btnRemove);
+
+ var _btnUp = new Button ("^") {
+ X = Pos.Right (_lstMenus) + 2,
+ Y = Pos.Top (_btnRemove) + 2
+ };
+ _frmMenu.Add (_btnUp);
+
+ var _btnDown = new Button ("v") {
+ X = Pos.Right (_lstMenus) + 2,
+ Y = Pos.Top (_btnUp) + 1
+ };
+ _frmMenu.Add (_btnDown);
+
+ Add (_frmMenu);
+
+ var _frmMenuDetails = new FrameView ("Menu Details:") {
+ X = Pos.Right (_frmMenu),
+ Y = Pos.Top (_frmMenu),
+ Width = Dim.Fill (),
+ Height = Dim.Fill ()
+ };
+
+ var _lblTitle = new Label ("Title:") {
+ Y = 1
+ };
+ _frmMenuDetails.Add (_lblTitle);
+
+ var _txtTitle = new TextField () {
+ X = Pos.Right (_lblTitle) + 2,
+ Y = Pos.Top (_lblTitle),
+ Width = Dim.Fill ()
+ };
+ _frmMenuDetails.Add (_txtTitle);
+
+ var _lblHelp = new Label ("Help:") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_lblTitle) + 1
+ };
+ _frmMenuDetails.Add (_lblHelp);
+
+ var _txtHelp = new TextField () {
+ X = Pos.Left (_txtTitle),
+ Y = Pos.Top (_lblHelp),
+ Width = Dim.Fill ()
+ };
+ _frmMenuDetails.Add (_txtHelp);
+
+ var _lblAction = new Label ("Action:") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_lblHelp) + 1
+ };
+ _frmMenuDetails.Add (_lblAction);
+
+ var _txtAction = new TextView () {
+ ColorScheme = Colors.Dialog,
+ X = Pos.Left (_txtTitle),
+ Y = Pos.Top (_lblAction),
+ Width = Dim.Fill (),
+ Height = 5
+ };
+ _frmMenuDetails.Add (_txtAction);
+
+ var _ckbIsTopLevel = new CheckBox ("IsTopLevel") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_lblAction) + 5
+ };
+ _frmMenuDetails.Add (_ckbIsTopLevel);
+
+ var _ckbSubMenu = new CheckBox ("Has sub-menus") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_ckbIsTopLevel)
+ };
+ _frmMenuDetails.Add (_ckbSubMenu);
+ _ckbIsTopLevel.Toggled = (e) => {
+ if (_ckbIsTopLevel.Checked && _currentEditMenuBarItem.Parent != null) {
+ MessageBox.ErrorQuery ("Invalid IsTopLevel", "Only menu bar can have top level menu item!", "Ok");
+ _ckbIsTopLevel.Checked = false;
+ return;
+ }
+ if (_ckbIsTopLevel.Checked) {
+ _ckbSubMenu.Checked = false;
+ _ckbSubMenu.SetNeedsDisplay ();
+ _txtAction.ReadOnly = false;
+ } else {
+ _txtAction.ReadOnly = true;
+ }
+ };
+ _ckbSubMenu.Toggled = (e) => {
+ if (_ckbSubMenu.Checked) {
+ _ckbIsTopLevel.Checked = false;
+ _ckbIsTopLevel.SetNeedsDisplay ();
+ _txtAction.ReadOnly = true;
+ } else {
+ _txtAction.ReadOnly = false;
+ }
+ };
+
+ var _rChkLabels = new ustring [] { "NoCheck", "Checked", "Radio" };
+ var _rbChkStyle = new RadioGroup (_rChkLabels) {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_ckbSubMenu) + 1,
+ };
+ _frmMenuDetails.Add (_rbChkStyle);
+
+ var _btnOk = new Button ("Ok") {
+ X = Pos.Left (_lblTitle) + 20,
+ Y = Pos.Bottom (_rbChkStyle) + 1,
+ Clicked = () => {
+ if (ustring.IsNullOrEmpty (_txtTitle.Text) && _currentEditMenuBarItem != null) {
+ MessageBox.ErrorQuery ("Invalid title", "Must enter a valid title!.", "Ok");
+ } else if (_currentEditMenuBarItem != null) {
+ var menuItem = new DynamicMenuItem (_txtTitle.Text, _txtHelp.Text, _txtAction.Text, _ckbIsTopLevel != null ? _ckbIsTopLevel.Checked : false, _ckbSubMenu != null ? _ckbSubMenu.Checked : false, _rbChkStyle.SelectedItem == 0 ? MenuItemCheckStyle.NoCheck : _rbChkStyle.SelectedItem == 1 ? MenuItemCheckStyle.Checked : MenuItemCheckStyle.Radio);
+ UpdateMenuItem (_currentEditMenuBarItem, menuItem, _lstMenus.SelectedItem);
+ }
+ }
+ };
+ _frmMenuDetails.Add (_btnOk);
+
+ var _btnCancel = new Button ("Cancel") {
+ X = Pos.Right (_btnOk) + 3,
+ Y = Pos.Top (_btnOk),
+ Clicked = () => {
+ _txtTitle.Text = ustring.Empty;
+ }
+ };
+ _frmMenuDetails.Add (_btnCancel);
+
+ Add (_frmMenuDetails);
+
+ _btnAdd.Clicked = () => {
+ if (MenuBar == null) {
+ MessageBox.ErrorQuery ("Menu Bar Error", "Must add a MenuBar first!", "Ok");
+ _btnAddMenuBar.SetFocus ();
+ return;
+ }
+
+ var item = EnterMenuItem (_currentMenuBarItem);
+ if (ustring.IsNullOrEmpty (item.title)) {
+ return;
+ }
+
+ if (!(_currentMenuBarItem is MenuBarItem)) {
+ var parent = _currentMenuBarItem.Parent as MenuBarItem;
+ var idx = parent.GetChildrenIndex (_currentMenuBarItem);
+ _currentMenuBarItem = new MenuBarItem (_currentMenuBarItem.Title, new MenuItem [] { new MenuItem ("_New", "", CreateAction (_currentEditMenuBarItem, new DynamicMenuItem ())) }, _currentMenuBarItem.Parent);
+ _currentMenuBarItem.CheckType = item.checkStyle;
+ parent.Children [idx] = _currentMenuBarItem;
+ } else {
+ MenuItem newMenu = CreateNewMenu (item, _currentMenuBarItem);
+ var menuBarItem = _currentMenuBarItem as MenuBarItem;
+ if (menuBarItem == null) {
+ menuBarItem = new MenuBarItem (_currentMenuBarItem.Title, new MenuItem [] { newMenu }, _currentMenuBarItem.Parent);
+ } else if (menuBarItem.Children == null) {
+ menuBarItem.Children = new MenuItem [] { newMenu };
+ } else {
+ var childrens = menuBarItem.Children;
+ Array.Resize (ref childrens, childrens.Length + 1);
+ childrens [childrens.Length - 1] = newMenu;
+ menuBarItem.Children = childrens;
+ }
+ DataContext.Menus.Add (new DynamicMenuItemList (newMenu.Title, newMenu));
+ _lstMenus.MoveDown ();
+ }
+ };
+
+ _btnRemove.Clicked = () => {
+ var menuItem = DataContext.Menus.Count > 0 ? DataContext.Menus [_lstMenus.SelectedItem].MenuItem : null;
+ if (menuItem != null) {
+ var childrens = ((MenuBarItem)_currentMenuBarItem).Children;
+ childrens [_lstMenus.SelectedItem] = null;
+ int i = 0;
+ foreach (var c in childrens) {
+ if (c != null) {
+ childrens [i] = c;
+ i++;
+ }
+ }
+ Array.Resize (ref childrens, childrens.Length - 1);
+ if (childrens.Length == 0) {
+ if (_currentMenuBarItem.Parent == null) {
+ ((MenuBarItem)_currentMenuBarItem).Children = null;
+ _currentMenuBarItem.Action = CreateAction (_currentEditMenuBarItem, new DynamicMenuItem (_currentMenuBarItem.Title));
+ } else {
+ _currentMenuBarItem = new MenuItem (_currentMenuBarItem.Title, _currentMenuBarItem.Help, CreateAction (_currentEditMenuBarItem, new DynamicMenuItem (_currentEditMenuBarItem.Title)), null, _currentMenuBarItem.Parent);
+ }
+ } else {
+ ((MenuBarItem)_currentMenuBarItem).Children = childrens;
+ }
+ DataContext.Menus.RemoveAt (_lstMenus.SelectedItem);
+ }
+ };
+
+ _btnMenuBarUp.Clicked = () => {
+ var i = _currentSelectedMenuBar;
+ var menuItem = _menuBar != null && _menuBar.Menus.Length > 0 ? _menuBar.Menus [i] : null;
+ if (menuItem != null) {
+ var menus = _menuBar.Menus;
+ if (i > 0) {
+ menus [i] = menus [i - 1];
+ menus [i - 1] = menuItem;
+ _currentSelectedMenuBar = i - 1;
+ _menuBar.SetNeedsDisplay ();
+ }
+ }
+ };
+
+ _btnMenuBarDown.Clicked = () => {
+ var i = _currentSelectedMenuBar;
+ var menuItem = _menuBar != null && _menuBar.Menus.Length > 0 ? _menuBar.Menus [i] : null;
+ if (menuItem != null) {
+ var menus = _menuBar.Menus;
+ if (i < menus.Length - 1) {
+ menus [i] = menus [i + 1];
+ menus [i + 1] = menuItem;
+ _currentSelectedMenuBar = i + 1;
+ _menuBar.SetNeedsDisplay ();
+ }
+ }
+ };
+
+ _btnUp.Clicked = () => {
+ var i = _lstMenus.SelectedItem;
+ var menuItem = DataContext.Menus.Count > 0 ? DataContext.Menus [i].MenuItem : null;
+ if (menuItem != null) {
+ var childrens = ((MenuBarItem)_currentMenuBarItem).Children;
+ if (i > 0) {
+ childrens [i] = childrens [i - 1];
+ childrens [i - 1] = menuItem;
+ DataContext.Menus [i] = DataContext.Menus [i - 1];
+ DataContext.Menus [i - 1] = new DynamicMenuItemList (menuItem.Title, menuItem);
+ _lstMenus.SelectedItem = i - 1;
+ }
+ }
+ };
+
+ _btnDown.Clicked = () => {
+ var i = _lstMenus.SelectedItem;
+ var menuItem = DataContext.Menus.Count > 0 ? DataContext.Menus [i].MenuItem : null;
+ if (menuItem != null) {
+ var childrens = ((MenuBarItem)_currentMenuBarItem).Children;
+ if (i < childrens.Length - 1) {
+ childrens [i] = childrens [i + 1];
+ childrens [i + 1] = menuItem;
+ DataContext.Menus [i] = DataContext.Menus [i + 1];
+ DataContext.Menus [i + 1] = new DynamicMenuItemList (menuItem.Title, menuItem);
+ _lstMenus.SelectedItem = i + 1;
+ }
+ }
+ };
+
+ _btnAddMenuBar.Clicked = () => {
+ var item = EnterMenuItem (null);
+ if (ustring.IsNullOrEmpty (item.title)) {
+ return;
+ }
+
+ if (MenuBar == null) {
+ _menuBar = new MenuBar ();
+ Add (_menuBar);
+ }
+ var newMenu = CreateNewMenu (item) as MenuBarItem;
+
+ var menus = _menuBar.Menus;
+ Array.Resize (ref menus, menus.Length + 1);
+ menus [^1] = newMenu;
+ _menuBar.Menus = menus;
+ _currentMenuBarItem = newMenu;
+ _currentMenuBarItem.CheckType = item.checkStyle;
+ _currentSelectedMenuBar = menus.Length - 1;
+ _menuBar.Menus [_currentSelectedMenuBar] = newMenu;
+ _lblMenuBar.Text = newMenu.Title;
+ SetListViewSource (_currentMenuBarItem, true);
+ EditMenuBarItem (_menuBar.Menus [_currentSelectedMenuBar]);
+ _menuBar.SetNeedsDisplay ();
+ };
+
+ _btnRemoveMenuBar.Clicked = () => {
+ if (_menuBar != null && _menuBar.Menus.Length > 0) {
+ _menuBar.Menus [_currentSelectedMenuBar] = null;
+ int i = 0;
+ foreach (var m in _menuBar.Menus) {
+ if (m != null) {
+ _menuBar.Menus [i] = m;
+ i++;
+ }
+ }
+ var menus = _menuBar.Menus;
+ Array.Resize (ref menus, menus.Length - 1);
+ _menuBar.Menus = menus;
+ if (_currentSelectedMenuBar - 1 >= 0 && _menuBar.Menus.Length > 0) {
+ _currentSelectedMenuBar--;
+ }
+ _currentMenuBarItem = _menuBar.Menus?.Length > 0 ? _menuBar.Menus [_currentSelectedMenuBar] : null;
+ }
+ if (MenuBar != null && _currentMenuBarItem == null && _menuBar.Menus.Length == 0) {
+ Remove (_menuBar);
+ _menuBar = null;
+ DataContext.Menus = new List ();
+ _currentMenuBarItem = null;
+ _currentSelectedMenuBar = -1;
+ _lblMenuBar.Text = ustring.Empty;
+ } else {
+ _lblMenuBar.Text = _menuBar.Menus [_currentSelectedMenuBar].Title;
+ }
+ SetListViewSource (_currentMenuBarItem, true);
+ EditMenuBarItem (null);
+ };
+
+ _lblMenuBar.Enter = (e) => {
+ if (_menuBar?.Menus != null) {
+ _currentMenuBarItem = _menuBar.Menus [_currentSelectedMenuBar];
+ EditMenuBarItem (_menuBar.Menus [_currentSelectedMenuBar]);
+ }
+ };
+
+ _btnPrevious.Clicked = () => {
+ if (_currentSelectedMenuBar - 1 > -1) {
+ _currentSelectedMenuBar--;
+ }
+ SelectCurrentMenuBarItem ();
+ };
+
+ _btnNext.Clicked = () => {
+ if (_menuBar != null && _currentSelectedMenuBar + 1 < _menuBar.Menus.Length) {
+ _currentSelectedMenuBar++;
+ }
+ SelectCurrentMenuBarItem ();
+ };
+
+ _lstMenus.SelectedItemChanged = (e) => {
+ var menuBarItem = DataContext.Menus.Count > 0 ? DataContext.Menus [e.Item].MenuItem : null;
+ EditMenuBarItem (menuBarItem);
+ };
+
+ _lstMenus.OpenSelectedItem = (e) => {
+ _currentMenuBarItem = DataContext.Menus [e.Item].MenuItem;
+ DataContext.Parent = _currentMenuBarItem.Title;
+ DataContext.Menus = new List ();
+ SetListViewSource (_currentMenuBarItem, true);
+ var menuBarItem = DataContext.Menus.Count > 0 ? DataContext.Menus [0].MenuItem : null;
+ EditMenuBarItem (menuBarItem);
+ };
+
+ _btnPreviowsParent.Clicked = () => {
+ if (_currentMenuBarItem != null && _currentMenuBarItem.Parent != null) {
+ var mi = _currentMenuBarItem;
+ _currentMenuBarItem = _currentMenuBarItem.Parent as MenuBarItem;
+ SetListViewSource (_currentMenuBarItem, true);
+ var i = ((MenuBarItem)_currentMenuBarItem).GetChildrenIndex (mi);
+ if (i > -1) {
+ _lstMenus.SelectedItem = i;
+ }
+ if (_currentMenuBarItem.Parent != null) {
+ DataContext.Parent = _currentMenuBarItem.Title;
+ } else {
+ DataContext.Parent = ustring.Empty;
+ }
+ } else {
+ DataContext.Parent = ustring.Empty;
+ }
+ };
+
+ var ustringConverter = new UStringValueConverter ();
+ var listWrapperConverter = new ListWrapperConverter ();
+
+ var lblMenuBar = new Binding (this, "MenuBar", _lblMenuBar, "Text", ustringConverter);
+ var lblParent = new Binding (this, "Parent", _lblParent, "Text", ustringConverter);
+ var lstMenus = new Binding (this, "Menus", _lstMenus, "Source", listWrapperConverter);
+
+
+ ustring GetTargetAction (Action action)
+ {
+ var me = action.Target;
+
+ if (me == null) {
+ throw new ArgumentException ();
+ }
+ object v = new object ();
+ foreach (var field in me.GetType ().GetFields ()) {
+ if (field.Name == "item") {
+ v = field.GetValue (me);
+ }
+ }
+ return v == null || !(v is DynamicMenuItem item) ? ustring.Empty : item.action;
+ }
+
+ Action CreateAction (MenuItem menuItem, DynamicMenuItem item)
+ {
+ switch (menuItem.CheckType) {
+ case MenuItemCheckStyle.NoCheck:
+ return new Action (() => MessageBox.ErrorQuery (item.title, item.action, "Ok"));
+ case MenuItemCheckStyle.Checked:
+ return new Action (() => menuItem.Checked = !menuItem.Checked);
+ case MenuItemCheckStyle.Radio:
+ break;
+ }
+ return new Action (() => {
+ menuItem.Checked = true;
+ var parent = menuItem?.Parent as MenuBarItem;
+ if (parent != null) {
+ var childrens = parent.Children;
+ for (int i = 0; i < childrens.Length; i++) {
+ var child = childrens [i];
+ if (child != menuItem) {
+ child.Checked = false;
+ }
+ }
+ }
+ });
+ }
+
+ void SetListViewSource (MenuItem _currentMenuBarItem, bool fill = false)
+ {
+ DataContext.Menus = new List ();
+ var menuBarItem = _currentMenuBarItem as MenuBarItem;
+ if (menuBarItem != null && menuBarItem?.Children == null) {
+ return;
+ }
+ if (!fill) {
+ return;
+ }
+ if (menuBarItem != null) {
+ foreach (var child in menuBarItem?.Children) {
+ var m = new DynamicMenuItemList (child.Title, child);
+ DataContext.Menus.Add (m);
+ }
+ }
+ }
+
+ void EditMenuBarItem (MenuItem menuBarItem)
+ {
+ if (menuBarItem == null) {
+ _frmMenuDetails.CanFocus = false;
+ } else {
+ _frmMenuDetails.CanFocus = true;
+ }
+ _currentEditMenuBarItem = menuBarItem;
+ _txtTitle.Text = menuBarItem?.Title ?? "";
+ _txtHelp.Text = menuBarItem?.Help ?? "";
+ _txtAction.Text = menuBarItem != null && menuBarItem.Action != null ? GetTargetAction (menuBarItem.Action) : ustring.Empty;
+ _ckbIsTopLevel.Checked = IsTopLevel (menuBarItem);
+ _ckbSubMenu.Checked = HasSubMenus (menuBarItem);
+ _rbChkStyle.SelectedItem = (int)(menuBarItem?.CheckType ?? MenuItemCheckStyle.NoCheck);
+ }
+
+ void UpdateMenuItem (MenuItem _currentEditMenuBarItem, DynamicMenuItem menuItem, int index)
+ {
+ _currentEditMenuBarItem.Title = menuItem.title;
+ _currentEditMenuBarItem.Help = menuItem.help;
+ _currentEditMenuBarItem.CheckType = menuItem.checkStyle;
+ var parent = _currentEditMenuBarItem.Parent as MenuBarItem;
+ if (parent != null && parent.Children.Length == 1 && _currentEditMenuBarItem.CheckType == MenuItemCheckStyle.Radio) {
+ _currentEditMenuBarItem.Checked = true;
+ }
+ if (menuItem.isTopLevel && _currentEditMenuBarItem is MenuBarItem) {
+ ((MenuBarItem)_currentEditMenuBarItem).Children = null;
+ _currentEditMenuBarItem.Action = CreateAction (_currentEditMenuBarItem, menuItem);
+ SetListViewSource (_currentEditMenuBarItem, true);
+ } else if (menuItem.hasSubMenu) {
+ _currentEditMenuBarItem.Action = null;
+ if (_currentEditMenuBarItem is MenuBarItem && ((MenuBarItem)_currentEditMenuBarItem).Children == null) {
+ ((MenuBarItem)_currentEditMenuBarItem).Children = new MenuItem [] { new MenuItem ("_New", "", CreateAction (_currentEditMenuBarItem, new DynamicMenuItem ())) };
+ } else if (_currentEditMenuBarItem.Parent != null) {
+ UpdateParent (ref _currentEditMenuBarItem);
+ } else {
+ _currentEditMenuBarItem = new MenuBarItem (_currentEditMenuBarItem.Title, new MenuItem [] { new MenuItem ("_New", "", CreateAction (_currentEditMenuBarItem, new DynamicMenuItem ())) }, _currentEditMenuBarItem.Parent);
+ }
+ SetListViewSource (_currentEditMenuBarItem, true);
+ } else if (_currentEditMenuBarItem is MenuBarItem && _currentEditMenuBarItem.Parent != null) {
+ UpdateParent (ref _currentEditMenuBarItem);
+ _currentEditMenuBarItem = new MenuItem (menuItem.title, menuItem.help, CreateAction (_currentEditMenuBarItem, menuItem), null, _currentEditMenuBarItem.Parent);
+ } else {
+ if (_currentEditMenuBarItem is MenuBarItem) {
+ ((MenuBarItem)_currentEditMenuBarItem).Children = null;
+ DataContext.Menus = new List ();
+ }
+ _currentEditMenuBarItem.Action = CreateAction (_currentEditMenuBarItem, menuItem);
+ }
+
+ if (_currentEditMenuBarItem.Parent == null) {
+ DataContext.MenuBar = _currentEditMenuBarItem.Title;
+ } else {
+ DataContext.Menus [index] = new DynamicMenuItemList (_currentEditMenuBarItem.Title, _currentEditMenuBarItem);
+ }
+ _currentEditMenuBarItem.CheckType = menuItem.checkStyle;
+ EditMenuBarItem (_currentEditMenuBarItem);
+ }
+
+ void UpdateParent (ref MenuItem menuItem)
+ {
+ var parent = menuItem.Parent as MenuBarItem;
+ var idx = parent.GetChildrenIndex (menuItem);
+ if (!(menuItem is MenuBarItem)) {
+ menuItem = new MenuBarItem (menuItem.Title, new MenuItem [] { new MenuItem ("_New", "", CreateAction (menuItem, new DynamicMenuItem ())) }, menuItem.Parent);
+ if (idx > -1) {
+ parent.Children [idx] = menuItem;
+ }
+ } else {
+ menuItem = new MenuItem (menuItem.Title, menuItem.Help, CreateAction (menuItem, new DynamicMenuItem ()), null, menuItem.Parent);
+ if (idx > -1) {
+ parent.Children [idx] = menuItem;
+ }
+ }
+ }
+
+ bool IsTopLevel (MenuItem menuItem)
+ {
+ var topLevel = menuItem as MenuBarItem;
+ if (topLevel != null && topLevel.Parent == null && (topLevel.Children == null || topLevel.Children.Length == 0)) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ bool HasSubMenus (MenuItem menuItem)
+ {
+ var menuBarItem = menuItem as MenuBarItem;
+ if (menuBarItem != null && menuBarItem.Children != null && menuBarItem.Children.Length > 0) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ void SelectCurrentMenuBarItem ()
+ {
+ MenuBarItem menuBarItem = null;
+ if (_menuBar?.Menus != null) {
+ menuBarItem = _menuBar.Menus [_currentSelectedMenuBar];
+ _lblMenuBar.Text = menuBarItem.Title;
+ }
+ EditMenuBarItem (menuBarItem);
+ _currentMenuBarItem = menuBarItem;
+ DataContext.Menus = new List ();
+ SetListViewSource (_currentMenuBarItem, true);
+ _lblParent.Text = ustring.Empty;
+ }
+
+ DynamicMenuItem EnterMenuItem (MenuItem menuItem)
+ {
+ var _lblTitle = new Label (1, 3, "Title:");
+ var _txtTitle = new TextField ("_New") {
+ X = Pos.Right (_lblTitle) + 2,
+ Y = Pos.Top (_lblTitle),
+ Width = Dim.Fill (),
+ };
+ var _lblHelp = new Label ("Help:") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_lblTitle) + 1
+ };
+ var _txtHelp = new TextField () {
+ X = Pos.Left (_txtTitle),
+ Y = Pos.Top (_lblHelp),
+ Width = Dim.Fill (),
+ };
+ var _lblAction = new Label ("Action:") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_lblHelp) + 1
+ };
+ var _txtAction = new TextView () {
+ ColorScheme = Colors.Menu,
+ X = Pos.Left (_txtTitle),
+ Y = Pos.Top (_lblAction),
+ Width = Dim.Fill (),
+ Height = 5,
+ ReadOnly = true
+ };
+ var _ckbIsTopLevel = new CheckBox ("IsTopLevel") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_lblAction) + 5
+ };
+ var _ckbSubMenu = new CheckBox ("Has sub-menus") {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_ckbIsTopLevel),
+ Checked = menuItem == null
+ };
+ _ckbIsTopLevel.Toggled = (e) => {
+ if (_ckbIsTopLevel.Checked && menuItem != null) {
+ MessageBox.ErrorQuery ("Invalid IsTopLevel", "Only menu bar can have top level menu item!", "Ok");
+ _ckbIsTopLevel.Checked = false;
+ return;
+ }
+ if (_ckbIsTopLevel.Checked) {
+ _ckbSubMenu.Checked = false;
+ _ckbSubMenu.SetNeedsDisplay ();
+ _txtAction.ReadOnly = false;
+ } else {
+ _txtAction.ReadOnly = true;
+ }
+ };
+ _ckbSubMenu.Toggled = (e) => {
+ if (_ckbSubMenu.Checked) {
+ _ckbIsTopLevel.Checked = false;
+ _ckbIsTopLevel.SetNeedsDisplay ();
+ _txtAction.ReadOnly = true;
+ } else {
+ _txtAction.ReadOnly = false;
+ }
+ };
+ var _rChkLabels = new ustring [] { "NoCheck", "Checked", "Radio" };
+ var _rbChkStyle = new RadioGroup (_rChkLabels) {
+ X = Pos.Left (_lblTitle),
+ Y = Pos.Bottom (_ckbSubMenu) + 1,
+ };
+ var _btnOk = new Button ("Ok") {
+ IsDefault = true,
+ Clicked = () => {
+ if (ustring.IsNullOrEmpty (_txtTitle.Text)) {
+ MessageBox.ErrorQuery ("Invalid title", "Must enter a valid title!.", "Ok");
+ } else {
+ Application.RequestStop ();
+ }
+ }
+ };
+ var _btnCancel = new Button ("Cancel") {
+ Clicked = () => {
+ _txtTitle.Text = ustring.Empty;
+ Application.RequestStop ();
+ }
+ };
+ var _dialog = new Dialog ("Please enter the menu details.", _btnOk, _btnCancel);
+ _dialog.Add (_lblTitle, _txtTitle, _lblHelp, _txtHelp, _lblAction, _txtAction, _ckbIsTopLevel, _ckbSubMenu, _rbChkStyle);
+ _txtTitle.SetFocus ();
+ Application.Run (_dialog);
+
+ return new DynamicMenuItem (_txtTitle.Text, _txtHelp.Text, _txtAction.Text, _ckbIsTopLevel != null ? _ckbIsTopLevel.Checked : false, _ckbSubMenu != null ? _ckbSubMenu.Checked : false, _rbChkStyle.SelectedItem == 0 ? MenuItemCheckStyle.NoCheck : _rbChkStyle.SelectedItem == 1 ? MenuItemCheckStyle.Checked : MenuItemCheckStyle.Radio);
+ }
+
+ MenuItem CreateNewMenu (DynamicMenuItem item, MenuItem parent = null)
+ {
+ MenuItem newMenu;
+ if (item.hasSubMenu) {
+ newMenu = new MenuBarItem (item.title, new MenuItem [] { new MenuItem ("_New", "", null) }, parent);
+ ((MenuBarItem)newMenu).Children [0].Action = CreateAction (newMenu, new DynamicMenuItem ());
+ } else if (parent != null) {
+ newMenu = new MenuItem (item.title, item.help, null, null, parent);
+ newMenu.CheckType = item.checkStyle;
+ newMenu.Action = CreateAction (newMenu, item);
+ } else {
+ newMenu = new MenuBarItem (item.title, item.help, null);
+ ((MenuBarItem)newMenu).Children [0].Action = CreateAction (newMenu, item);
+ }
+
+ return newMenu;
+ }
+ }
+ }
+
+ class DynamicMenuItemModel : INotifyPropertyChanged {
+ public event PropertyChangedEventHandler PropertyChanged;
+
+ private ustring menuBar;
+ private ustring parent;
+ private List menus;
+
+ public ustring MenuBar {
+ get => menuBar;
+ set {
+ if (value != menuBar) {
+ menuBar = value;
+ PropertyChanged?.Invoke (this, new PropertyChangedEventArgs (GetPropertyName ()));
+ }
+ }
+ }
+
+ public ustring Parent {
+ get => parent;
+ set {
+ if (value != parent) {
+ parent = value;
+ PropertyChanged?.Invoke (this, new PropertyChangedEventArgs (GetPropertyName ()));
+ }
+ }
+ }
+
+ public List Menus {
+ get => menus;
+ set {
+ if (value != menus) {
+ menus = value;
+ PropertyChanged?.Invoke (this, new PropertyChangedEventArgs (GetPropertyName ()));
+ }
+ }
+ }
+
+ public DynamicMenuItemModel ()
+ {
+ Menus = new List ();
+ }
+
+ public string GetPropertyName ([CallerMemberName] string propertyName = null)
+ {
+ return propertyName;
+ }
+ }
+
+ public interface IValueConverter {
+ object Convert (object value, object parameter = null);
+ }
+
+ public class Binding {
+ public View Target { get; private set; }
+ public View Source { get; private set; }
+
+ public string SourcePropertyName { get; private set; }
+ public string TargetPropertyName { get; private set; }
+
+ private object sourceDataContext;
+ private PropertyInfo sourceBindingProperty;
+ private IValueConverter valueConverter;
+
+ public Binding (View source, string sourcePropertyName, View target, string targetPropertyName, IValueConverter valueConverter = null)
+ {
+ Target = target;
+ Source = source;
+ SourcePropertyName = sourcePropertyName;
+ TargetPropertyName = targetPropertyName;
+ sourceDataContext = Source.GetType ().GetProperty ("DataContext").GetValue (Source);
+ sourceBindingProperty = sourceDataContext.GetType ().GetProperty (SourcePropertyName);
+ this.valueConverter = valueConverter;
+ UpdateTarget ();
+
+ var notifier = ((INotifyPropertyChanged)sourceDataContext);
+ if (notifier != null) {
+ notifier.PropertyChanged += (s, e) => {
+ if (e.PropertyName == SourcePropertyName) {
+ UpdateTarget ();
+ }
+ };
+ }
+ }
+
+ private void UpdateTarget ()
+ {
+ try {
+ var sourceValue = sourceBindingProperty.GetValue (sourceDataContext);
+ if (sourceValue == null) {
+ return;
+ }
+
+ var finalValue = valueConverter?.Convert (sourceValue) ?? sourceValue;
+
+ var targetProperty = Target.GetType ().GetProperty (TargetPropertyName);
+ targetProperty.SetValue (Target, finalValue);
+ } catch (Exception ex) {
+ MessageBox.ErrorQuery ("Binding Error", $"Binding failed: {ex}.", "Ok");
+ }
+ }
+ }
+
+ public class ListWrapperConverter : IValueConverter {
+ public object Convert (object value, object parameter = null)
+ {
+ return new ListWrapper ((IList)value);
+ }
+ }
+
+ public class UStringValueConverter : IValueConverter {
+ public object Convert (object value, object parameter = null)
+ {
+ var data = Encoding.ASCII.GetBytes (value.ToString ());
+ return ustring.Make (data);
+ }
+ }
+}