Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / MasterPage.cs / 3 / MasterPage.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * MasterPage class definition * * Copyright (c) 1998 Microsoft Corporation */ namespace System.Web.UI { using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.ComponentModel.Design; using System.Globalization; using System.Security.Permissions; using System.Reflection; using System.Web.Hosting; using System.Web.Compilation; using System.Web.UI.WebControls; using System.Web.Util; [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class MasterPageControlBuilder : UserControlControlBuilder { internal static readonly String AutoTemplatePrefix = "Template_"; } ////// Default ControlBuilder used to parse master page files. Note that this class inherits from FileLevelPageControlBuilder /// to reuse masterpage handling code. /// internal class FileLevelMasterPageControlBuilder: FileLevelPageControlBuilder { internal override void AddContentTemplate(object obj, string templateName, ITemplate template) { MasterPage master = (MasterPage)obj; master.AddContentTemplate(templateName, template); } } ////// [ Designer("Microsoft.VisualStudio.Web.WebForms.MasterPageWebFormDesigner, " + AssemblyRef.MicrosoftVisualStudioWeb, typeof(IRootDesigner)), ControlBuilder(typeof(MasterPageControlBuilder)), ParseChildren(false) ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class MasterPage : UserControl { private VirtualPath _masterPageFile; private MasterPage _master; // The collection used to store the templates created on the content page. private IDictionary _contentTemplates; // The collection used to store the content templates defined in MasterPage. private IDictionary _contentTemplateCollection; private IList _contentPlaceHolders; private bool _masterPageApplied; // The page or masterpage that hosts this masterPage. internal TemplateControl _ownerControl; public MasterPage() { } ///This class is not marked as abstract, because the VS designer /// needs to instantiate it when opening .master files ////// [Browsable(false)] [EditorBrowsable(EditorBrowsableState.Advanced)] protected internal IDictionary ContentTemplates { get { return _contentTemplates; } } [Browsable(false)] [EditorBrowsable(EditorBrowsableState.Advanced)] protected internal IList ContentPlaceHolders { get { if (_contentPlaceHolders == null) { _contentPlaceHolders = new ArrayList(); } return _contentPlaceHolders; } } ///Dictionary used to store the content templates that are passed in from the content pages. ////// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), WebSysDescription(SR.MasterPage_MasterPage) ] public MasterPage Master { get { if (_master == null && !_masterPageApplied) { _master = MasterPage.CreateMaster(this, Context, _masterPageFile, _contentTemplateCollection); } return _master; } } ///The MasterPage used by this nested MasterPage control. ////// [ DefaultValue(""), WebCategory("Behavior"), WebSysDescription(SR.MasterPage_MasterPageFile) ] public string MasterPageFile { get { return VirtualPath.GetVirtualPathString(_masterPageFile); } set { if (_masterPageApplied) { throw new InvalidOperationException(SR.GetString(SR.PropertySetBeforePageEvent, "MasterPageFile", "Page_PreInit")); } if (value != VirtualPath.GetVirtualPathString(_masterPageFile)) { _masterPageFile = VirtualPath.CreateAllowNull(value); if (_master != null && Controls.Contains(_master)) { Controls.Remove(_master); } _master = null; } } } [EditorBrowsable(EditorBrowsableState.Advanced)] protected internal void AddContentTemplate(string templateName, ITemplate template) { if (_contentTemplateCollection == null) { _contentTemplateCollection = new Hashtable(10, StringComparer.OrdinalIgnoreCase); } try { _contentTemplateCollection.Add(templateName, template); } catch (ArgumentException) { throw new HttpException(SR.GetString(SR.MasterPage_Multiple_content, templateName)); } } internal static MasterPage CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) { Debug.Assert(owner is MasterPage || owner is Page); MasterPage master = null; if (masterPageFile == null) { if (contentTemplateCollection != null && contentTemplateCollection.Count > 0) { throw new HttpException(SR.GetString(SR.Content_only_allowed_in_content_page)); } return null; } // If it's relative, make it *app* relative. Treat is as relative to this // user control (ASURT 55513) VirtualPath virtualPath = VirtualPathProvider.CombineVirtualPathsInternal( owner.TemplateControlVirtualPath, masterPageFile); // Compile the declarative control and get its Type ITypedWebObjectFactory result = (ITypedWebObjectFactory)BuildManager.GetVPathBuildResult( context, virtualPath); // Make sure it has the correct base type if (!typeof(MasterPage).IsAssignableFrom(result.InstantiatedType)) { throw new HttpException(SR.GetString(SR.Invalid_master_base, masterPageFile)); } master = (MasterPage)result.CreateInstance(); master.TemplateControlVirtualPath = virtualPath; if (owner.HasControls()) { foreach (Control control in owner.Controls) { LiteralControl literal = control as LiteralControl; if (literal == null || Util.FirstNonWhiteSpaceIndex(literal.Text) >= 0) { throw new HttpException(SR.GetString(SR.Content_allowed_in_top_level_only)); } } // Remove existing controls. owner.Controls.Clear(); } // Make sure the control collection is writable. if (owner.Controls.IsReadOnly) { throw new HttpException(SR.GetString(SR.MasterPage_Cannot_ApplyTo_ReadOnly_Collection)); } if (contentTemplateCollection != null) { foreach(String contentName in contentTemplateCollection.Keys) { if (!master.ContentPlaceHolders.Contains(contentName.ToLower(CultureInfo.InvariantCulture))) { throw new HttpException(SR.GetString( SR.MasterPage_doesnt_have_contentplaceholder, contentName, masterPageFile)); } } master._contentTemplates = contentTemplateCollection; } master._ownerControl = owner; master.InitializeAsUserControl(owner.Page); owner.Controls.Add(master); return master; } internal static void ApplyMasterRecursive(MasterPage master, IList appliedMasterFilePaths) { Debug.Assert(appliedMasterFilePaths != null); // Recursively apply master pages to the nested masterpages. if (master.Master != null) { string pageFile = master._masterPageFile.VirtualPathString.ToLower(CultureInfo.InvariantCulture); if (appliedMasterFilePaths.Contains(pageFile)) { throw new InvalidOperationException(SR.GetString(SR.MasterPage_Circular_Master_Not_Allowed, master._masterPageFile)); } appliedMasterFilePaths.Add(pageFile); ApplyMasterRecursive(master.Master, appliedMasterFilePaths); } master._masterPageApplied = true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.Gets and sets the masterPageFile of this control. ///
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