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
|
//
// System.Web.UI.WebControls.ImageMap.cs
//
// Authors:
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.ComponentModel;
using System.Security.Permissions;
namespace System.Web.UI.WebControls
{
[ParseChildren (true, "HotSpots")]
[DefaultProperty ("HotSpots")]
[DefaultEvent ("Click")]
[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[SupportsEventValidation]
public class ImageMap: Image, IPostBackEventHandler
{
HotSpotCollection spots;
static readonly object ClickEvent = new object();
[Category ("Action")]
public event ImageMapEventHandler Click {
add { Events.AddHandler (ClickEvent, value); }
remove { Events.RemoveHandler (ClickEvent, value); }
}
protected virtual void OnClick (ImageMapEventArgs e)
{
if (Events != null) {
ImageMapEventHandler eh = (ImageMapEventHandler) Events [ClickEvent];
if (eh!= null)
eh (this, e);
}
}
// Why override?
[Browsable (true)]
[EditorBrowsable (EditorBrowsableState.Always)]
public override bool Enabled {
get { return base.Enabled; }
set { base.Enabled = value; }
}
[DefaultValueAttribute (HotSpotMode.NotSet)]
public virtual HotSpotMode HotSpotMode {
get {
object o = ViewState ["HotSpotMode"];
return o != null ? (HotSpotMode) o : HotSpotMode.NotSet;
}
set { ViewState ["HotSpotMode"] = value; }
}
[DefaultValueAttribute ("")]
public virtual string Target {
get {
object o = ViewState ["Target"];
return o != null ? (string) o : String.Empty;
}
set { ViewState ["Target"] = value; }
}
[NotifyParentPropertyAttribute (true)]
[PersistenceModeAttribute (PersistenceMode.InnerDefaultProperty)]
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
public HotSpotCollection HotSpots {
get {
if (spots == null) {
spots = new HotSpotCollection ();
if (IsTrackingViewState)
((IStateManager)spots).TrackViewState ();
}
return spots;
}
}
protected override void TrackViewState ()
{
base.TrackViewState ();
if (spots != null)
((IStateManager)spots).TrackViewState ();
}
protected override object SaveViewState ()
{
object ob1 = base.SaveViewState ();
object ob2 = spots != null ? ((IStateManager)spots).SaveViewState () : null;
if (ob1 != null || ob2 != null)
return new Pair (ob1, ob2);
else
return null;
}
protected override void LoadViewState (object savedState)
{
if (savedState == null) {
base.LoadViewState (null);
return;
}
Pair pair = (Pair) savedState;
base.LoadViewState (pair.First);
((IStateManager)HotSpots).LoadViewState (pair.Second);
}
protected virtual void RaisePostBackEvent (string eventArgument)
{
ValidateEvent (UniqueID, eventArgument);
HotSpot spot = HotSpots [int.Parse (eventArgument)];
OnClick (new ImageMapEventArgs (spot.PostBackValue));
}
void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
{
RaisePostBackEvent (eventArgument);
}
protected override void AddAttributesToRender (HtmlTextWriter writer)
{
base.AddAttributesToRender (writer);
if (spots != null && spots.Count > 0)
writer.AddAttribute (HtmlTextWriterAttribute.Usemap, "#ImageMap" + ClientID);
}
protected internal override void Render (HtmlTextWriter writer)
{
base.Render (writer);
if (spots != null && spots.Count > 0) {
#if NET_4_0
bool enabled = Enabled;
#endif
writer.AddAttribute (HtmlTextWriterAttribute.Id, "ImageMap" + ClientID);
writer.AddAttribute (HtmlTextWriterAttribute.Name, "ImageMap" + ClientID);
writer.RenderBeginTag (HtmlTextWriterTag.Map);
for (int n=0; n<spots.Count; n++) {
HotSpot spot = spots [n];
writer.AddAttribute (HtmlTextWriterAttribute.Shape, spot.MarkupName);
writer.AddAttribute (HtmlTextWriterAttribute.Coords, spot.GetCoordinates ());
writer.AddAttribute (HtmlTextWriterAttribute.Title, spot.AlternateText);
writer.AddAttribute (HtmlTextWriterAttribute.Alt, spot.AlternateText);
if (spot.AccessKey.Length > 0)
writer.AddAttribute (HtmlTextWriterAttribute.Accesskey, spot.AccessKey);
if (spot.TabIndex != 0)
writer.AddAttribute (HtmlTextWriterAttribute.Tabindex, spot.TabIndex.ToString ());
HotSpotMode mode = spot.HotSpotMode != HotSpotMode.NotSet ? spot.HotSpotMode : HotSpotMode;
switch (mode) {
case HotSpotMode.Inactive:
writer.AddAttribute ("nohref", "true", false);
break;
case HotSpotMode.Navigate:
string target = spot.Target.Length > 0 ? spot.Target : Target;
if (!String.IsNullOrEmpty (target))
writer.AddAttribute (HtmlTextWriterAttribute.Target, target);
#if NET_4_0
if (enabled) {
#endif
#if TARGET_J2EE
string navUrl = ResolveClientUrl (spot.NavigateUrl, String.Compare (target, "_blank", StringComparison.InvariantCultureIgnoreCase) != 0);
#else
string navUrl = ResolveClientUrl (spot.NavigateUrl);
#endif
writer.AddAttribute (HtmlTextWriterAttribute.Href, navUrl);
#if NET_4_0
}
#endif
break;
case HotSpotMode.PostBack:
writer.AddAttribute (HtmlTextWriterAttribute.Href, Page.ClientScript.GetPostBackClientHyperlink (this, n.ToString(), true));
break;
}
writer.RenderBeginTag (HtmlTextWriterTag.Area);
writer.RenderEndTag ();
}
writer.RenderEndTag ();
}
}
}
}
|
