SkinBuilder.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / SkinBuilder.cs / 2 / SkinBuilder.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

/* 
 * Classes related to templated control support 
 *
 * Copyright (c) 1999 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.IO;
    using System.Reflection;
    using System.Security.Permissions; 
    using System.Web.Compilation;
    using System.Web.UI.WebControls; 
    using System.Web.Util; 
#if !FEATURE_PAL
    using System.Web.UI.Design; 
#endif // !FEATURE_PAL


    ///  
    ///    [To be supplied.]
    ///  
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public sealed class SkinBuilder : ControlBuilder {
        private ThemeProvider _provider; 
        private Control _control;
        private ControlBuilder _skinBuilder;
        private string _themePath;
        internal static readonly Object[] EmptyParams = new Object[0]; 

        public SkinBuilder(ThemeProvider provider, Control control, ControlBuilder skinBuilder, string themePath) { 
            _provider = provider; 
            _control = control;
            _skinBuilder = skinBuilder; 
            _themePath = themePath;
        }

        private void ApplyTemplateProperties(Control control) { 
            object[] parameters = new object[1];
            ICollection entries = GetFilteredPropertyEntrySet(_skinBuilder.TemplatePropertyEntries); 
            foreach (TemplatePropertyEntry entry in entries) { 
                try {
                    object originalValue = FastPropertyAccessor.GetProperty(control, entry.Name); 
                    if (originalValue == null) {
                        ControlBuilder controlBuilder = ((TemplatePropertyEntry)entry).Builder;
                        controlBuilder.SetServiceProvider(ServiceProvider);
                        try { 
                            object objectValue = controlBuilder.BuildObject(true);
                            parameters[0] = objectValue; 
                        } 
                        finally {
                            controlBuilder.SetServiceProvider(null); 
                        }

                        MethodInfo methodInfo = entry.PropertyInfo.GetSetMethod();
                        Util.InvokeMethod(methodInfo, control, parameters); 
                    }
                } 
                catch (Exception e) { 
                    Debug.Fail(e.Message);
                } 
                catch {
                }
            }
        } 

        private void ApplyComplexProperties(Control control) { 
            ICollection entries = GetFilteredPropertyEntrySet(_skinBuilder.ComplexPropertyEntries); 
            foreach (ComplexPropertyEntry entry in entries) {
                ControlBuilder builder = entry.Builder; 
                if (builder != null) {
                    string propertyName = entry.Name;
                    if (entry.ReadOnly) {
                        object objectValue = FastPropertyAccessor.GetProperty(control, propertyName); 
                        if (objectValue == null) continue;
 
                        entry.Builder.SetServiceProvider(ServiceProvider); 
                        try {
                            entry.Builder.InitObject(objectValue); 
                        }
                        finally {
                            entry.Builder.SetServiceProvider(null);
                        } 
                    }
                    else { 
                        object childObj; 
                        string actualPropName;
                        object value = entry.Builder.BuildObject(true); 

                        // Make the UrlProperty based on theme path for control themes(Must be a string)
                        PropertyDescriptor desc = PropertyMapper.GetMappedPropertyDescriptor(control, PropertyMapper.MapNameToPropertyName(propertyName), out childObj, out actualPropName);
                        if (desc != null) { 
                            string str = value as string;
                            if (value != null && desc.Attributes[typeof(UrlPropertyAttribute)] != null && 
                                UrlPath.IsRelativeUrl(str)) { 
                                value = _themePath + str;
                            } 
                        }

                        FastPropertyAccessor.SetProperty(childObj, propertyName, value);
                    } 
                }
            } 
        } 

        private void ApplySimpleProperties(Control control) { 
            ICollection entries = GetFilteredPropertyEntrySet(_skinBuilder.SimplePropertyEntries);
            foreach (SimplePropertyEntry entry in entries) {
                try {
                    if (entry.UseSetAttribute) { 
                        SetSimpleProperty(entry, control);
                        continue; 
                    } 

                    string propertyName = PropertyMapper.MapNameToPropertyName(entry.Name); 
                    object childObj;
                    string actualPropName;
                    PropertyDescriptor desc = PropertyMapper.GetMappedPropertyDescriptor(control, propertyName, out childObj, out actualPropName);
 
                    if (desc != null) {
                        DefaultValueAttribute defValAttr = (DefaultValueAttribute)desc.Attributes[typeof(DefaultValueAttribute)]; 
                        object currentValue = desc.GetValue(childObj); 

                        // Only apply the themed value if different from default value. 
                        if (defValAttr != null && !object.Equals(defValAttr.Value, currentValue)) {
                            continue;
                        }
 
                        object value = entry.Value;
 
                        // Make the UrlProperty based on theme path for control themes. 
                        string str = value as string;
                        if (value != null && desc.Attributes[typeof(UrlPropertyAttribute)] != null && 
                            UrlPath.IsRelativeUrl(str)) {
                            value = _themePath + str;
                        }
 
                        SetSimpleProperty(entry, control);
                    } 
                } 
                catch (Exception e) {
                    Debug.Fail(e.Message); 
                }
                catch {
                }
            } 
        }
 
        private void ApplyBoundProperties(Control control) { 
            DataBindingCollection dataBindings = null;
            IAttributeAccessor attributeAccessor = null; 

            // If there are no filters in the picture, use the entries as is
            ICollection entries = GetFilteredPropertyEntrySet(_skinBuilder.BoundPropertyEntries);
            foreach (BoundPropertyEntry entry in entries) { 
                InitBoundProperty(control, entry, ref dataBindings, ref attributeAccessor);
            } 
        } 

        private void InitBoundProperty(Control control, BoundPropertyEntry entry, 
            ref DataBindingCollection dataBindings, ref IAttributeAccessor attributeAccessor) {

            string expressionPrefix = entry.ExpressionPrefix;
            // If we're in the designer, add the bound properties to the collections 
            if (expressionPrefix.Length == 0) {
                if (dataBindings == null && control is IDataBindingsAccessor) { 
                    dataBindings = ((IDataBindingsAccessor)control).DataBindings; 
                }
 
                dataBindings.Add(new DataBinding(entry.Name, entry.Type, entry.Expression.Trim()));
            }
            else {
                throw new InvalidOperationException(SR.GetString(SR.ControlBuilder_ExpressionsNotAllowedInThemes)); 
            }
        } 
 
        /// 
        ///    [To be supplied.] 
        /// 
        public Control ApplyTheme() {
            if (_skinBuilder != null) {
                ApplySimpleProperties(_control); 
                ApplyComplexProperties(_control);
                ApplyBoundProperties(_control); 
                ApplyTemplateProperties(_control); 
            }
            return _control; 
        }
    }

    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
    public sealed class ThemeProvider {
        private IDictionary _skinBuilders; 
        private string[] _cssFiles; 
        private string _themeName;
        private string _themePath; 
        private int _contentHashCode;
        private IDesignerHost _host;

        public ThemeProvider(IDesignerHost host, string name, string themeDefinition, string[] cssFiles, string themePath) { 
            _themeName = name;
            _themePath = themePath; 
            _cssFiles = cssFiles; 
            _host = host;
 
            ControlBuilder themeBuilder = DesignTimeTemplateParser.ParseTheme(host, themeDefinition, themePath);
            _contentHashCode = themeDefinition.GetHashCode();

            ArrayList subBuilders = themeBuilder.SubBuilders; 
            _skinBuilders = new Hashtable();
            for (int i=0; i

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