1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
using System;
using System.Collections.Generic;
using AppKit;
using Foundation;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
internal class ObjectOutlineView : BaseSelectorOutlineView
{
private IReadOnlyList<ObjectTreeElement> itemsSource;
public IReadOnlyList<ObjectTreeElement> ItemsSource
{
get => this.itemsSource;
set
{
if (this.itemsSource != value) {
this.itemsSource = value;
DataSource = new ObjectOutlineViewDataSource (this.itemsSource); ;
Delegate = new ObjectOutlineViewDelegate ();
}
ReloadData ();
ExpandItem (null, true);
}
}
}
internal class ObjectOutlineViewDelegate : NSOutlineViewDelegate
{
private const string TypeIdentifier = "type";
public override NSView GetView (NSOutlineView outlineView, NSTableColumn tableColumn, NSObject item)
{
var labelContainer = (UnfocusableTextField)outlineView.MakeView (TypeIdentifier, this);
if (labelContainer == null) {
labelContainer = new UnfocusableTextField {
Identifier = TypeIdentifier,
};
}
var target = (item as NSObjectFacade).Target;
switch (target) {
case KeyValuePair<string, SimpleCollectionView> kvp:
labelContainer.StringValue = kvp.Key;
break;
case TypeInfo info:
labelContainer.StringValue = info.Name;
break;
default:
labelContainer.StringValue = Properties.Resources.TypeNotSupported;
break;
}
return labelContainer;
}
public override bool ShouldSelectItem (NSOutlineView outlineView, NSObject item)
{
var target = (item as NSObjectFacade).Target;
switch (target) {
case KeyValuePair<string, SimpleCollectionView> kvp:
return false;
case TypeInfo info:
return true;
default:
return false;
}
}
}
internal class ObjectOutlineViewDataSource : NSOutlineViewDataSource
{
public IReadOnlyList<ObjectTreeElement> ItemsSource { get; }
internal ObjectOutlineViewDataSource (IReadOnlyList<ObjectTreeElement> itemsSource)
{
if (itemsSource == null)
throw new ArgumentNullException (nameof (itemsSource));
ItemsSource = itemsSource;
}
public override nint GetChildrenCount (NSOutlineView outlineView, NSObject item)
{
if (item == null) {
return ItemsSource != null ? ItemsSource.Count : 0;
} else {
var target = (item as NSObjectFacade).Target;
switch (target) {
case KeyValuePair<string, SimpleCollectionView> kvp:
return kvp.Value.Count;
case TypeInfo info:
return 0;
default:
return 0;
}
}
}
public override NSObject GetChild (NSOutlineView outlineView, nint childIndex, NSObject item)
{
object element;
if (item == null) {
element = ItemsSource.ElementAt ((int)childIndex);
} else {
var target = (item as NSObjectFacade).Target;
switch (target) {
case KeyValuePair<string, SimpleCollectionView> kvp:
element = kvp.Value[(int)childIndex];
break;
case TypeInfo info:
element = info;
break;
default:
return null;
}
}
return new NSObjectFacade (element);
}
public override bool ItemExpandable (NSOutlineView outlineView, NSObject item)
{
var target = (item as NSObjectFacade).Target;
switch (target) {
case KeyValuePair<string, SimpleCollectionView> kvp:
return kvp.Value.Count > 0;
case TypeInfo info:
return false;
default:
return false;
}
}
}
}
|
