1 // Copyright 2004-2007 Castle Project - http://www.castleproject.org/
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
7 // http://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
15 namespace Castle
.MonoRail
.Framework
.ViewComponents
21 /// Renders a javascript content that changes the page
22 /// elements using a special dsl-like language.
25 /// <seealso cref="PrototypeHelper"/>
28 /// The following illustrates its use.
30 /// #blockcomponent(UpdatePage)
31 /// $page.ReplaceHtml('myotherdiv', 'new content')
32 /// $page.Highlight('mydivid')
37 /// The current implementation is dependent on
38 /// prototype.js and scriptaculous.js
40 public class UpdatePage
: ViewComponent
43 /// Called by the framework so the component can
44 /// render its content
46 public override void Render()
48 Context
.Writer
.WriteLine(GenerateJS());
52 /// Evaluates the component's body providing a <c>page</c>
53 /// instance which is a <see cref="PrototypeHelper"/>
55 /// <returns></returns>
56 protected string GenerateJS()
58 object generator
= Context
.ViewEngine
.CreateJSGenerator(RailsContext
);
60 PropertyBag
["page"] = generator
;
62 Context
.RenderBody(new StringWriter());
64 PropertyBag
.Remove("page");
66 return generator
.ToString();