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//
// System.Web.UI.MasterPage.cs
//
// Authors:
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2005-2010 Novell, Inc.
//
//
// 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;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Web.Compilation;
using System.Web.Hosting;
using System.Web.Util;
using System.Web.UI.WebControls;
using System.IO;
namespace System.Web.UI
{
[ParseChildren (false)]
#if notyet
[Designer (...)]
#endif
[ControlBuilder (typeof (MasterPageControlBuilder))]
public class MasterPage: UserControl
{
Hashtable definedContentTemplates = new Hashtable ();
Hashtable templates = new Hashtable ();
List <string> placeholders;
string parentMasterPageFile = null;
MasterPage parentMasterPage;
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected internal void AddContentTemplate (string templateName, ITemplate template)
{
// LAMESPEC: should be ArgumentException
if (definedContentTemplates.ContainsKey (templateName))
throw new HttpException ("Multiple contents applied to " + templateName);
definedContentTemplates [templateName] = template;
}
[Browsable (false)]
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected internal IList ContentPlaceHolders {
get {
if (placeholders == null)
placeholders = new List <string> ();
return placeholders;
}
}
[Browsable (false)]
[EditorBrowsable (EditorBrowsableState.Advanced)]
protected internal IDictionary ContentTemplates {
get { return templates; }
}
[DefaultValueAttribute ("")]
public string MasterPageFile {
get { return parentMasterPageFile; }
set {
parentMasterPageFile = value;
parentMasterPage = null;
}
}
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public MasterPage Master {
get {
if (parentMasterPage == null && parentMasterPageFile != null)
parentMasterPage = MasterPage.CreateMasterPage (this, Context, parentMasterPageFile, definedContentTemplates);
return parentMasterPage;
}
}
public void InstantiateInContentPlaceHolder (Control contentPlaceHolder, ITemplate template)
{
// .NET compatibility...
if (contentPlaceHolder == null || template == null)
throw new NullReferenceException ();
if (contentPlaceHolder != null && template != null)
template.InstantiateIn (contentPlaceHolder);
}
internal static MasterPage CreateMasterPage (TemplateControl owner, HttpContext context,
string masterPageFile, IDictionary contentTemplateCollection)
{
var req = context.Request;
if (req != null)
masterPageFile = HostingEnvironment.VirtualPathProvider.CombineVirtualPaths (req.CurrentExecutionFilePath, masterPageFile);
MasterPage masterPage = BuildManager.CreateInstanceFromVirtualPath (masterPageFile, typeof (MasterPage)) as MasterPage;
if (masterPage == null)
throw new HttpException ("Failed to create MasterPage instance for '" + masterPageFile + "'.");
if (contentTemplateCollection != null) {
foreach (string templateName in contentTemplateCollection.Keys) {
if (masterPage.ContentTemplates [templateName] == null)
masterPage.ContentTemplates [templateName] = contentTemplateCollection[templateName];
}
}
masterPage.Page = owner.Page;
masterPage.InitializeAsUserControlInternal ();
List <string> placeholders = masterPage.placeholders;
if (contentTemplateCollection != null && placeholders != null && placeholders.Count > 0) {
foreach (string templateName in contentTemplateCollection.Keys) {
if (!placeholders.Contains (templateName.ToLowerInvariant ())) {
throw new HttpException (
String.Format ("Cannot find ContentPlaceHolder '{0}' in the master page '{1}'",
templateName, masterPageFile));
}
}
}
return masterPage;
}
internal static void ApplyMasterPageRecursive (string currentFilePath, VirtualPathProvider vpp, MasterPage master, Dictionary <string, bool> appliedMasterPageFiles)
{
/* XXX need to use virtual paths here? */
string mpFile = master.MasterPageFile;
if (!String.IsNullOrEmpty (mpFile)) {
mpFile = vpp.CombineVirtualPaths (currentFilePath, mpFile);
if (appliedMasterPageFiles.ContainsKey (mpFile))
throw new HttpException ("circular dependency in master page files detected");
MasterPage innerMaster = master.Master;
if (innerMaster != null) {
master.Controls.Clear ();
master.Controls.Add (innerMaster);
appliedMasterPageFiles.Add (mpFile, true);
MasterPage.ApplyMasterPageRecursive (currentFilePath, vpp, innerMaster, appliedMasterPageFiles);
}
}
}
}
}
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