mvvm.models.simple source code

1 module mvvm.models.simple;
2 
3 import std.stdio;
4 import mvvm.common;
5 
6 class SimpleViewModel
7 {
8     private ReactiveProperty!string _title;
9     public inout(ReactiveProperty!string) title() inout @property
10     {
11         return _title;
12     }
13 
14     private ReactiveProperty!bool _isActive;
15     public inout(ReactiveProperty!bool) isActive() inout @property
16     {
17         return _isActive;
18     }
19 
20     private Command _clearTitleCommand;
21     public inout(Command) clearTitleCommand() inout @property
22     {
23         return _clearTitleCommand;
24     }
25 
26     this()
27     {
28         _title = new ReactiveProperty!string("");
29         _isActive = new ReactiveProperty!bool(false);
30 
31         _clearTitleCommand = new DelegateCommand(&clearTitle, isActive);
32     }
33 
34     void clearTitle()
35     {
36         if (isActive.value)
37             title.value = "";
38     }
39 }
40 
41 unittest
42 {
43     auto model = new SimpleViewModel;
44     assert(model.isActive.value == false);
45     assert(model.title.value == "");
46 
47     model.title.value = "ABC";
48 
49     assert(model.title.value == "ABC");
50     model.clearTitle();
51     assert(model.title.value == "ABC");
52 
53     model.isActive.value = true;
54     model.clearTitle();
55     assert(model.title.value == "");
56 }