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//------------------------------------------------------------------------------
// <copyright file="ControlsConfig.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Xml;
using System.Diagnostics;
using System.Configuration;
using System.Globalization;
using System.Web;
using System.Web.Configuration;
using System.Collections.Specialized;
using System.Security.Permissions;
namespace System.Web.UI.MobileControls
{
// Mobile Controls Configuration class.
// Includes Mobile Web Forms-specific settings, including a set
// of device configurations, that can be used to decide what set of
// adapters to use for a given device.
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal class ControlsConfig
{
private readonly ControlsConfig _parent;
private readonly StringDictionary _settings = new StringDictionary();
private readonly ListDictionary _deviceConfigs = new ListDictionary();
[ConfigurationPermission(SecurityAction.Assert, Unrestricted=true)]
internal static ControlsConfig GetFromContext(HttpContext context)
{
// VSWhidbey 372365: Use MobileControlsSection if it is being returned
Object config = context.GetSection("system.web/mobileControls");
MobileControlsSection controlSection = config as MobileControlsSection;
if (controlSection != null)
{
return controlSection.GetControlsConfig();
}
return (ControlsConfig)config;
}
internal ControlsConfig(ControlsConfig parent)
{
_parent = parent;
}
// Return false if a device of the same name has already been added.
internal /*public*/ bool AddDeviceConfig(String configName, IndividualDeviceConfig deviceConfig)
{
// Note that GetDeviceConfig also walks the parents configs
if (GetDeviceConfig(configName) != null)
{
return false;
}
else
{
_deviceConfigs[configName] = deviceConfig;
return true;
}
}
internal /*public*/ IndividualDeviceConfig GetDeviceConfig(HttpContext context)
{
IndividualDeviceConfig deviceConfig = null;
#if DEBUG
if (context.Session != null)
{
String var = "AdapterOverride";
bool saveInSession = true;
String adapterOverride = (String)context.Session[var];
if (adapterOverride == null)
{
saveInSession = false;
adapterOverride = (String)context.Request.QueryString[var];
}
if (adapterOverride != null &&
(deviceConfig = GetDeviceConfig(adapterOverride)) != null)
{
if (saveInSession)
{
context.Session[var] = adapterOverride;
}
return deviceConfig;
}
}
#endif
foreach (IndividualDeviceConfig candidate in _deviceConfigs.Values)
{
if (candidate.DeviceQualifies(context))
{
deviceConfig = candidate;
break;
}
}
if (deviceConfig == null && _parent != null)
{
deviceConfig = _parent.GetDeviceConfig (context);
}
if (deviceConfig == null)
{
throw new Exception(
SR.GetString(SR.ControlsConfig_NoDeviceConfigRegistered,
context.Request.UserAgent));
}
return deviceConfig;
}
internal /*public*/ IndividualDeviceConfig GetDeviceConfig(String configName)
{
IndividualDeviceConfig deviceConfig = (IndividualDeviceConfig)_deviceConfigs[configName];
if (deviceConfig == null && _parent != null)
{
deviceConfig = _parent.GetDeviceConfig (configName);
}
return deviceConfig;
}
// Call this after all the device configs have been entered. This will
// resolve the names of the parent classes to inherit from actual
// classes, and flag an error if there isn't one. This is done as a
// second-pass because devices earlier in web.config may inherit from
// items later in the web.config. That flexibility is required to get
// the right behavior for device predicates being evaluated in the order
// they appear.
internal void FixupDeviceConfigInheritance(XmlNode configNode)
{
foreach (IndividualDeviceConfig config in _deviceConfigs.Values)
{
config.FixupInheritance(null, configNode);
}
}
internal /*public*/ String this[String key]
{
get
{
String s = _settings[key];
if (s == null && _parent != null)
{
s = _parent[key];
}
return s;
}
set
{
_settings[key] = value;
}
}
internal /*public*/ int SessionStateHistorySize
{
get
{
String sizeString = this["sessionStateHistorySize"];
int size = Constants.DefaultSessionsStateHistorySize;
if (sizeString != null)
{
// Enclose in case a numerical value wasn't provided. In
// which case just return the default.
try
{
size = Int32.Parse(sizeString, CultureInfo.InvariantCulture);
}
catch
{
}
}
return size;
}
}
internal /*public*/ Type CookielessDataDictionaryType
{
get
{
Type cookielessDataType = null;
String typeString = this["cookielessDataDictionaryType"];
if (!String.IsNullOrEmpty(typeString)) {
cookielessDataType = Type.GetType(typeString);
}
return cookielessDataType;
}
}
internal /*public*/ bool AllowCustomAttributes
{
get
{
String allow = this["allowCustomAttributes"];
return String.Compare(allow, "true", StringComparison.OrdinalIgnoreCase) == 0;
}
}
}
}
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