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
|
//------------------------------------------------------------------------------
// <copyright file="DesignTimeTemplateParser.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI {
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Configuration;
using System.IO;
using System.Globalization;
using System.Security.Permissions;
using System.Text;
using System.Web;
using System.Web.Util;
using System.Web.Configuration;
/// <internalonly/>
public static class DesignTimeTemplateParser {
public static Control ParseControl(DesignTimeParseData data) {
Control[] parsedControls = ParseControlsInternal(data, true);
if (parsedControls.Length > 0) {
return parsedControls[0];
}
return null;
}
public static Control[] ParseControls(DesignTimeParseData data) {
return ParseControlsInternal(data, false);
}
/// <devdoc>
/// Convenience method for parsing one or more controls
/// </devdoc>
// DesignTimeTemplateParser is only meant for use within the designer
[SecurityPermission(SecurityAction.Demand, Unrestricted = true)]
internal static Control[] ParseControlsInternal(DesignTimeParseData data, bool returnFirst) {
try {
// Make the DesignerHost available only for the duration for this call
if (data.DesignerHost != null) {
TargetFrameworkUtil.DesignerHost = data.DesignerHost;
}
return ParseControlsInternalHelper(data, returnFirst);
} finally {
// Remove reference to the DesignerHost so that it cannot be used outside
// of this call.
TargetFrameworkUtil.DesignerHost = null;
}
}
private static Control[] ParseControlsInternalHelper(DesignTimeParseData data, bool returnFirst) {
TemplateParser parser = new PageParser();
parser.FInDesigner = true;
parser.DesignerHost = data.DesignerHost;
parser.DesignTimeDataBindHandler = data.DataBindingHandler;
parser.Text = data.ParseText;
parser.Parse();
ArrayList parsedControls = new ArrayList();
ArrayList subBuilders = parser.RootBuilder.SubBuilders;
if (subBuilders != null) {
// Look for the first control builder
IEnumerator en = subBuilders.GetEnumerator();
for (int i = 0; en.MoveNext(); i++) {
object cur = en.Current;
if ((cur is ControlBuilder) && !(cur is CodeBlockBuilder)) {
// Instantiate the control
ControlBuilder controlBuilder = (ControlBuilder)cur;
System.Diagnostics.Debug.Assert(controlBuilder.CurrentFilterResolutionService == null);
IServiceProvider builderServiceProvider = null;
// If there's a designer host, use it as the service provider
if (data.DesignerHost != null) {
builderServiceProvider = data.DesignerHost;
}
// If it doesn't exist, use a default ---- filter resolution service
else {
ServiceContainer serviceContainer = new ServiceContainer();
serviceContainer.AddService(typeof(IFilterResolutionService), new SimpleDesignTimeFilterResolutionService(data.Filter));
builderServiceProvider = serviceContainer;
}
controlBuilder.SetServiceProvider(builderServiceProvider);
try {
Control control = (Control)controlBuilder.BuildObject(data.ShouldApplyTheme);
parsedControls.Add(control);
}
finally {
controlBuilder.SetServiceProvider(null);
}
if (returnFirst) {
break;
}
}
// To preserve backwards compatibility, we don't add LiteralControls
// to the control collection when parsing for a single control
else if (!returnFirst && (cur is string)) {
LiteralControl literalControl = new LiteralControl(cur.ToString());
parsedControls.Add(literalControl);
}
}
}
data.SetUserControlRegisterEntries(parser.UserControlRegisterEntries, parser.TagRegisterEntries);
return (Control[])parsedControls.ToArray(typeof(Control));
}
// DesignTimeTemplateParser is only meant for use within the designer
[SecurityPermission(SecurityAction.Demand, Unrestricted = true)]
public static ITemplate ParseTemplate(DesignTimeParseData data) {
TemplateParser parser = new PageParser();
parser.FInDesigner = true;
parser.DesignerHost = data.DesignerHost;
parser.DesignTimeDataBindHandler = data.DataBindingHandler;
parser.Text = data.ParseText;
parser.Parse();
// Set the Text property of the TemplateBuilder to the input text
parser.RootBuilder.Text = data.ParseText;
parser.RootBuilder.SetDesignerHost(data.DesignerHost);
return parser.RootBuilder;
}
public static ControlBuilder ParseTheme(IDesignerHost host, string theme, string themePath) {
try {
TemplateParser parser = new DesignTimePageThemeParser(themePath);
parser.FInDesigner = true;
parser.DesignerHost = host;
parser.ThrowOnFirstParseError = true;
parser.Text = theme;
parser.Parse();
return parser.RootBuilder;
} catch (Exception e) {
throw new Exception(SR.GetString(SR.DesignTimeTemplateParser_ErrorParsingTheme) + " " + e.Message);
}
}
// Implementation of IDeviceFilterTester used at design time
private class SimpleDesignTimeFilterResolutionService : IFilterResolutionService {
private string _currentFilter;
public SimpleDesignTimeFilterResolutionService(string filter) {
_currentFilter = filter;
}
bool IFilterResolutionService.EvaluateFilter(string filterName) {
if (String.IsNullOrEmpty(filterName)) {
return true;
}
if (StringUtil.EqualsIgnoreCase(((_currentFilter == null) ? String.Empty : _currentFilter), filterName)) {
return true;
}
return false;
}
int IFilterResolutionService.CompareFilters(string filter1, string filter2) {
if (String.IsNullOrEmpty(filter1)) {
if (!String.IsNullOrEmpty(filter2)) {
return 1;
}
return 0;
}
if (String.IsNullOrEmpty(filter2)) {
return -1;
}
return 0;
}
}
}
}
|
