-
Notifications
You must be signed in to change notification settings - Fork 754
/
RadzenComponent.cs
223 lines (179 loc) · 6.32 KB
/
RadzenComponent.cs
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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
using System;
using System.Collections.Generic;
using Microsoft.AspNetCore.Components;
using System.Threading.Tasks;
using Microsoft.JSInterop;
namespace Radzen
{
public class RadzenComponent : ComponentBase, IDisposable
{
[Parameter(CaptureUnmatchedValues = true)]
public IReadOnlyDictionary<string, object> Attributes { get; set; }
public ElementReference Element { get; internal set; }
[Parameter]
public EventCallback<ElementReference> MouseEnter { get; set; }
[Parameter]
public EventCallback<ElementReference> MouseLeave { get; set; }
[Parameter]
public EventCallback<Microsoft.AspNetCore.Components.Web.MouseEventArgs> ContextMenu { get; set; }
public async Task OnMouseEnter()
{
await MouseEnter.InvokeAsync(Element);
}
public async Task OnMouseLeave()
{
await MouseLeave.InvokeAsync(Element);
}
public virtual async Task OnContextMenu(Microsoft.AspNetCore.Components.Web.MouseEventArgs args)
{
await ContextMenu.InvokeAsync(args);
}
[Parameter]
public virtual string Style { get; set; }
[Parameter]
public virtual bool Visible { get; set; } = true;
protected string GetCssClass()
{
if (Attributes != null && Attributes.TryGetValue("class", out var @class) && !string.IsNullOrEmpty(Convert.ToString(@class)))
{
return $"{GetComponentCssClass()} {@class}";
}
return GetComponentCssClass();
}
protected string GetId()
{
if (Attributes != null && Attributes.TryGetValue("id", out var id) && !string.IsNullOrEmpty(Convert.ToString(@id)))
{
return $"{@id}";
}
return UniqueID;
}
protected virtual string GetComponentCssClass()
{
return "";
}
Debouncer debouncer = new Debouncer();
protected void Debounce(Func<Task> action, int milliseconds = 500)
{
debouncer.Debounce(milliseconds, action);
}
public string UniqueID { get; set; }
[Inject]
protected IJSRuntime JSRuntime { get; set; }
protected override void OnInitialized()
{
UniqueID = Convert.ToBase64String(Guid.NewGuid().ToByteArray()).Replace("/", "-").Replace("+", "-").Substring(0, 10);
}
private bool visibleChanged = false;
private bool firstRender = true;
public override async Task SetParametersAsync(ParameterView parameters)
{
visibleChanged = parameters.DidParameterChange(nameof(Visible), Visible);
await base.SetParametersAsync(parameters);
if (visibleChanged && !firstRender)
{
if (Visible == false)
{
Dispose();
}
}
}
private DotNetObjectReference<RadzenComponent> reference;
protected DotNetObjectReference<RadzenComponent> Reference
{
get
{
if (reference == null)
{
reference = DotNetObjectReference.Create(this);
}
return reference;
}
}
protected override async Task OnAfterRenderAsync(bool firstRender)
{
this.firstRender = firstRender;
if (firstRender || visibleChanged)
{
visibleChanged = false;
if (Visible)
{
if (ContextMenu.HasDelegate)
{
await JSRuntime.InvokeVoidAsync("Radzen.addContextMenu", UniqueID, Reference);
}
if (MouseEnter.HasDelegate)
{
await JSRuntime.InvokeVoidAsync("Radzen.addMouseEnter", UniqueID, Reference);
}
if (MouseLeave.HasDelegate)
{
await JSRuntime.InvokeVoidAsync("Radzen.addMouseLeave", UniqueID, Reference);
}
}
}
}
[JSInvokable("RadzenComponent.RaiseContextMenu")]
public async System.Threading.Tasks.Task RaiseContextMenu(Microsoft.AspNetCore.Components.Web.MouseEventArgs e)
{
if (ContextMenu.HasDelegate)
{
await OnContextMenu(e);
}
}
[JSInvokable("RadzenComponent.RaiseMouseEnter")]
public async System.Threading.Tasks.Task RaiseMouseEnter()
{
if (MouseEnter.HasDelegate)
{
await OnMouseEnter();
}
}
[JSInvokable("RadzenComponent.RaiseMouseLeave")]
public async System.Threading.Tasks.Task RaiseMouseLeave()
{
if (MouseLeave.HasDelegate)
{
await OnMouseLeave();
}
}
public virtual void Dispose()
{
reference?.Dispose();
reference = null;
if (ContextMenu.HasDelegate)
{
JSRuntime.InvokeVoidAsync("Radzen.removeContextMenu", UniqueID);
}
if (MouseEnter.HasDelegate)
{
JSRuntime.InvokeVoidAsync("Radzen.removeMouseEnter", UniqueID);
}
if (MouseLeave.HasDelegate)
{
JSRuntime.InvokeVoidAsync("Radzen.removeMouseLeave", UniqueID);
}
}
protected IDictionary<string, string> CurrentStyle
{
get
{
var currentStyle = new Dictionary<string, string>();
if (!String.IsNullOrEmpty(Style))
{
foreach (var pair in Style.Split(';'))
{
var keyAndValue = pair.Split(':');
if (keyAndValue.Length == 2)
{
var key = keyAndValue[0].Trim();
var value = keyAndValue[1].Trim();
currentStyle[key] = value;
}
}
}
return currentStyle;
}
}
}
}