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using System;
using AppKit;
using CoreGraphics;
using Xamarin.PropertyEditing.Mac.Resources;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
public class PropertyButton : NSImageView
{
NSMenu popUpContextMenu;
PropertyViewModel viewModel;
internal PropertyViewModel ViewModel
{
get { return viewModel; }
set {
if (viewModel != null) {
viewModel.PropertyChanged -= OnPropertyChanged;
}
viewModel = value;
viewModel.PropertyChanged += OnPropertyChanged;
// No point showing myself if you can't do anything with me.
Hidden = !viewModel.Property.CanWrite;
ValueSourceChanged (viewModel.ValueSource);
}
}
public PropertyButton ()
{
AccessibilityTitle = LocalizationResources.AccessibilityPropertiesButton;
AccessibilityHelp = LocalizationResources.AccessibilityPropertiesButtonDescription;
Enabled = true;
Image = NSImage.ImageNamed ("property-button-default-mac-10");
ImageScaling = NSImageScale.AxesIndependently;
ToolTip = Properties.Resources.Default;
TranslatesAutoresizingMaskIntoConstraints = false;
}
public override void MouseDown (NSEvent theEvent)
{
if (theEvent.Type == NSEventType.LeftMouseDown) {
if (this.popUpContextMenu == null) {
this.popUpContextMenu = new NSMenu ();
if (this.viewModel.TargetPlatform.SupportsCustomExpressions) {
var mi = new NSMenuItem (Properties.Resources.CustomExpressionEllipsis) {
AttributedTitle = new Foundation.NSAttributedString (
Properties.Resources.CustomExpressionEllipsis,
new CoreText.CTStringAttributes () {
Font = new CoreText.CTFont (PropertyEditorControl.DefaultFontName, PropertyEditorControl.DefaultFontSize + 1),
})
};
mi.Activated += OnCustomExpression;
this.popUpContextMenu.AddItem (mi);
this.popUpContextMenu.AddItem (NSMenuItem.SeparatorItem);
}
// TODO If we add more menu items consider making the Label/Command a dictionary that we can iterate over to populate everything.
this.popUpContextMenu.AddItem (new CommandMenuItem (Properties.Resources.Reset, viewModel.ClearValueCommand) {
AttributedTitle = new Foundation.NSAttributedString (
Properties.Resources.Reset,
new CoreText.CTStringAttributes () {
Font = new CoreText.CTFont (PropertyEditorControl.DefaultFontName, PropertyEditorControl.DefaultFontSize + 1),
})
});
}
var menuOrigin = this.Superview.ConvertPointToView (new CGPoint (Frame.Location.X - 1, Frame.Location.Y + Frame.Size.Height + 4), null);
var popupMenuEvent = NSEvent.MouseEvent (NSEventType.LeftMouseDown, menuOrigin, (NSEventModifierMask)0x100, 0, this.Window.WindowNumber, this.Window.GraphicsContext, 0, 1, 1);
NSMenu.PopUpContextMenu (popUpContextMenu, popupMenuEvent, this);
}
}
public override void MouseEntered (NSEvent theEvent)
{
ChangeActiveImage (viewModel.ValueSource, true);
}
public override void MouseExited (NSEvent theEvent)
{
ChangeActiveImage (viewModel.ValueSource);
}
public override void UpdateTrackingAreas ()
{
base.UpdateTrackingAreas ();
foreach (var item in TrackingAreas ()) {
RemoveTrackingArea (item);
}
var options = NSTrackingAreaOptions.MouseEnteredAndExited | NSTrackingAreaOptions.ActiveAlways;
var trackingArea = new NSTrackingArea (this.Bounds, options, this, null);
AddTrackingArea (trackingArea);
}
private void ChangeActiveImage (ValueSource valueSource, bool activeImage = false)
{
switch (valueSource) {
case ValueSource.Binding:
Image = activeImage ? NSImage.ImageNamed ("property-button-bound-mac-active-10") : NSImage.ImageNamed ("property-button-bound-mac-10");
break;
case ValueSource.Default:
Image = activeImage ? NSImage.ImageNamed ("property-button-default-mac-active-10") : NSImage.ImageNamed ("property-button-default-mac-10");
return;
case ValueSource.Local:
Image = activeImage ? NSImage.ImageNamed ("property-button-local-mac-active-10") : NSImage.ImageNamed ("property-button-local-mac-10");
break;
case ValueSource.Inherited:
Image = activeImage ? NSImage.ImageNamed ("property-button-inherited-mac-active-10") : NSImage.ImageNamed ("property-button-inherited-mac-10");
break;
case ValueSource.Resource:
Image = activeImage ? NSImage.ImageNamed ("property-button-inherited-mac-active-10") : NSImage.ImageNamed ("property-button-inherited-resource-mac-10");
break;
case ValueSource.Unset:
Image = activeImage ? NSImage.ImageNamed ("property-button-default-mac-active-10") : NSImage.ImageNamed ("property-button-default-mac-10");
break;
default:
// To Handle ValueSource.DefaultStyle, ValueSource.Style etc.
Image = null;
break;
}
}
private void ValueSourceChanged (ValueSource valueSource)
{
switch (valueSource) {
case ValueSource.Binding:
ToolTip = Properties.Resources.Binding;
break;
case ValueSource.Default:
ToolTip = Properties.Resources.Default;
return;
case ValueSource.Local:
ToolTip = Properties.Resources.Local;
break;
case ValueSource.Inherited:
ToolTip = Properties.Resources.Inherited;
break;
case ValueSource.Resource:
ToolTip = (this.viewModel?.Resource?.Name != null) ? String.Format (Properties.Resources.ResourceWithName, this.viewModel.Resource.Name) : Properties.Resources.Resource;
break;
case ValueSource.Unset:
ToolTip = Properties.Resources.Unset;
break;
default:
// To Handle ValueSource.DefaultStyle, ValueSource.Style etc.
ToolTip = string.Empty;
break;
}
ChangeActiveImage (valueSource, false);
}
private void OnPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
if (e.PropertyName == nameof (viewModel.ValueSource)) {
ValueSourceChanged (viewModel.ValueSource);
}
}
private void OnCustomExpression (object sender, EventArgs e)
{
var customExpressionView = new CustomExpressionView (viewModel);
var customExpressionPopOver = new AutoClosePopOver {
ContentViewController = new NSViewController (null, null) { View = customExpressionView },
};
customExpressionPopOver.Show (customExpressionView.Frame, (NSView)this, NSRectEdge.MinYEdge);
}
}
}
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