350 lines
14 KiB
C#
350 lines
14 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="HtmlControlAdapter.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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using System.Collections;
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using System.Diagnostics;
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using System.Web.UI.MobileControls;
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using System.Web.UI.MobileControls.Adapters;
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using System.Security.Permissions;
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#if COMPILING_FOR_SHIPPED_SOURCE
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namespace System.Web.UI.MobileControls.ShippedAdapterSource
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#else
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namespace System.Web.UI.MobileControls.Adapters
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#endif
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{
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/*
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* HtmlControlAdapter base class contains html specific methods.
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*
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* Copyright (c) 2000 Microsoft Corporation
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*/
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter"]/*' />
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[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
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[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.")]
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public class HtmlControlAdapter : System.Web.UI.MobileControls.Adapters.ControlAdapter
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{
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.PageAdapter"]/*' />
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protected HtmlPageAdapter PageAdapter
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{
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get
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{
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return ((HtmlPageAdapter)Page.Adapter);
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}
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.FormAdapter"]/*' />
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protected HtmlFormAdapter FormAdapter
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{
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get
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{
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return (HtmlFormAdapter)Control.Form.Adapter;
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}
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RequiresFormTag"]/*' />
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public virtual bool RequiresFormTag
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{
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get
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{
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return false;
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}
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.Render"]/*' />
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public override void Render(HtmlTextWriter writer)
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{
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HtmlMobileTextWriter htmlWriter = (HtmlMobileTextWriter)writer;
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Render(htmlWriter);
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.Render1"]/*' />
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public virtual void Render(HtmlMobileTextWriter writer)
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{
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RenderChildren(writer);
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RenderPostBackEventReference"]/*' />
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protected void RenderPostBackEventReference(HtmlMobileTextWriter writer, String argument)
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{
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PageAdapter.RenderPostBackEvent(writer, Control.UniqueID, argument);
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RenderPostBackEventAsAttribute"]/*' />
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protected void RenderPostBackEventAsAttribute(
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HtmlMobileTextWriter writer,
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String attributeName,
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String argument)
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{
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writer.Write(" ");
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writer.Write(attributeName);
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writer.Write("=\"");
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RenderPostBackEventReference(writer, argument);
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writer.Write("\" ");
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RenderPostBackEventAsAnchor"]/*' />
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protected void RenderPostBackEventAsAnchor(
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HtmlMobileTextWriter writer,
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String argument,
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String linkText)
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{
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writer.EnterStyle(Style);
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writer.WriteBeginTag("a");
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RenderPostBackEventAsAttribute(writer, "href", argument);
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writer.Write(">");
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writer.WriteText(linkText, true);
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writer.WriteEndTag("a");
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writer.ExitStyle(Style);
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RenderBeginLink"]/*' />
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protected void RenderBeginLink(HtmlMobileTextWriter writer, String target)
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{
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bool queryStringWritten = false;
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bool appendCookieless = (PageAdapter.PersistCookielessData) &&
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(!( (target.StartsWith("http:", StringComparison.Ordinal)) || (target.StartsWith("https:", StringComparison.Ordinal)) ));
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writer.WriteBeginTag("a");
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writer.Write(" href=\"");
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String targetUrl = null;
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String prefix = Constants.FormIDPrefix;
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if (target.StartsWith(prefix, StringComparison.Ordinal))
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{
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String name = target.Substring(prefix.Length);
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Form form = Control.ResolveFormReference(name);
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if (writer.SupportsMultiPart)
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{
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if (form != null && PageAdapter.IsFormRendered(form))
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{
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targetUrl = PageAdapter.GetFormUrl(form);
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}
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}
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if (targetUrl == null)
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{
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RenderPostBackEventReference(writer, form.UniqueID);
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appendCookieless = false;
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}
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else
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{
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writer.Write(targetUrl);
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queryStringWritten = targetUrl.IndexOf('?') != -1;
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}
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}
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else
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{
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MobileControl control = Control;
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// There is some adapter that Control is not set. And we
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// don't do any url resolution then. E.g. a page adapter
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if (control != null)
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{
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// AUI 3652
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target = control.ResolveUrl(target);
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}
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writer.Write(target);
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queryStringWritten = target.IndexOf('?') != -1;
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}
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IDictionary dictionary = PageAdapter.CookielessDataDictionary;
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if((dictionary != null) && (appendCookieless))
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{
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foreach(String name in dictionary.Keys)
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{
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if(queryStringWritten)
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{
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writer.Write('&');
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}
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else
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{
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writer.Write('?');
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queryStringWritten = true;
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}
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writer.Write(name);
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writer.Write('=');
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writer.Write(dictionary[name]);
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}
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}
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writer.Write("\"");
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AddAttributes(writer);
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writer.Write(">");
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RenderEndLink"]/*' />
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protected void RenderEndLink(HtmlMobileTextWriter writer)
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{
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writer.WriteEndTag("a");
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}
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// Can be used by adapter that allow its subclass to add more
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// specific attributes
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.AddAttributes"]/*' />
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protected virtual void AddAttributes(HtmlMobileTextWriter writer)
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{
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}
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// Can be used by adapter that adds the custom attribute "accesskey"
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.AddAccesskeyAttribute"]/*' />
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protected virtual void AddAccesskeyAttribute(HtmlMobileTextWriter writer)
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{
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if (Device.SupportsAccesskeyAttribute)
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{
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AddCustomAttribute(writer, "accesskey");
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}
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}
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// Can be used by adapter that adds custom attributes for
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// multi-media functionalities
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private readonly static String [] _multiMediaAttributes =
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{ "src",
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"soundstart",
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"loop",
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"volume",
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"vibration",
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"viblength" };
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.AddJPhoneMultiMediaAttributes"]/*' />
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protected virtual void AddJPhoneMultiMediaAttributes(
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HtmlMobileTextWriter writer)
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{
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if (Device.SupportsJPhoneMultiMediaAttributes)
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{
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for (int i = 0; i < _multiMediaAttributes.Length; i++)
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{
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AddCustomAttribute(writer, _multiMediaAttributes[i]);
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}
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}
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}
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private void AddCustomAttribute(HtmlMobileTextWriter writer,
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String attributeName)
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{
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String attributeValue = ((IAttributeAccessor)Control).GetAttribute(attributeName);
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if (!String.IsNullOrEmpty(attributeValue))
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{
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writer.WriteAttribute(attributeName, attributeValue);
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}
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.RenderAsHiddenInputField"]/*' />
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protected virtual void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
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{
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}
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// Renders hidden variables for IPostBackDataHandlers which are
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// not displayed due to pagination or secondary UI.
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internal void RenderOffPageVariables(HtmlMobileTextWriter writer, Control ctl, int page)
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{
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if (ctl.HasControls())
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{
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foreach (Control child in ctl.Controls)
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{
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// Note: Control.Form != null.
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if (!child.Visible || child == Control.Form.Header || child == Control.Form.Footer)
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{
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continue;
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}
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MobileControl mobileCtl = child as MobileControl;
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if (mobileCtl != null)
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{
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if (mobileCtl.IsVisibleOnPage(page)
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&& (mobileCtl == ((HtmlFormAdapter)mobileCtl.Form.Adapter).SecondaryUIControl ||
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null == ((HtmlFormAdapter)mobileCtl.Form.Adapter).SecondaryUIControl))
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{
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if (mobileCtl.FirstPage == mobileCtl.LastPage)
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{
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// Entire control is visible on this page, so no need to look
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// into children.
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continue;
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}
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// Control takes up more than one page, so it may be possible that
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// its children are on a different page, so we'll continue to
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// fall through into children.
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}
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else if (mobileCtl is IPostBackDataHandler)
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{
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HtmlControlAdapter adapter = mobileCtl.Adapter as HtmlControlAdapter;
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if (adapter != null)
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{
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adapter.RenderAsHiddenInputField(writer);
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}
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}
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}
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RenderOffPageVariables(writer, child, page);
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}
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}
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}
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/////////////////////////////////////////////////////////////////////
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// SECONDARY UI SUPPORT
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/////////////////////////////////////////////////////////////////////
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internal const int NotSecondaryUIInit = -1; // For initialization of private consts in derived classes.
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.NotSecondaryUI"]/*' />
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protected static readonly int NotSecondaryUI = NotSecondaryUIInit;
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.SecondaryUIMode"]/*' />
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protected int SecondaryUIMode
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{
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get
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{
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if (Control == null || Control.Form == null)
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{
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return NotSecondaryUI;
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}
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else
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{
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return ((HtmlFormAdapter)Control.Form.Adapter).GetSecondaryUIMode(Control);
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}
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}
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set
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{
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((HtmlFormAdapter)Control.Form.Adapter).SetSecondaryUIMode(Control, value);
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}
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.ExitSecondaryUIMode"]/*' />
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protected void ExitSecondaryUIMode()
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{
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SecondaryUIMode = NotSecondaryUI;
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.LoadAdapterState"]/*' />
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public override void LoadAdapterState(Object state)
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{
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if (state != null)
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{
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SecondaryUIMode = (int)state;
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}
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}
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/// <include file='doc\HtmlControlAdapter.uex' path='docs/doc[@for="HtmlControlAdapter.SaveAdapterState"]/*' />
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public override Object SaveAdapterState()
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{
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int mode = SecondaryUIMode;
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if (mode != NotSecondaryUI)
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{
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return mode;
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}
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else
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{
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return null;
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}
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}
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}
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}
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