-//\r
-// System.Web.UI.HtmlControls.HtmlHead\r
-//\r
-// Authors:\r
-// Lluis Sanchez Gual (lluis@novell.com)\r
-//\r
-// (C) 2004 Novell, Inc.\r
-\r
-//\r
-// Permission is hereby granted, free of charge, to any person obtaining\r
-// a copy of this software and associated documentation files (the\r
-// "Software"), to deal in the Software without restriction, including\r
-// without limitation the rights to use, copy, modify, merge, publish,\r
-// distribute, sublicense, and/or sell copies of the Software, and to\r
-// permit persons to whom the Software is furnished to do so, subject to\r
-// the following conditions:\r
-// \r
-// The above copyright notice and this permission notice shall be\r
-// included in all copies or substantial portions of the Software.\r
-// \r
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,\r
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\r
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\r
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE\r
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION\r
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION\r
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
-//\r
-\r
-#if NET_2_0\r
-\r
-using System;\r
-using System.ComponentModel;\r
-using System.Web;\r
-using System.Web.UI;\r
-using System.Web.UI.WebControls;\r
-using System.Collections;\r
-\r
-namespace System.Web.UI.HtmlControls\r
-{\r
- [ControlBuilder (typeof(HtmlHeadBuilder))]\r
- public class HtmlHead: HtmlContainerControl, IPageHeader\r
- {\r
- HtmlTitle title;\r
- Hashtable metadata;\r
- ArrayList styleSheets;\r
- StyleSheetBag styleSheet;\r
- \r
- public HtmlHead(): base("head") {}\r
-\r
- protected override void OnInit (EventArgs e)\r
- {\r
- Page.SetHeader (this);\r
- }\r
- \r
- protected override void RenderChildren (HtmlTextWriter writer)\r
- {\r
- base.RenderChildren (writer);\r
- if (metadata != null) {\r
- foreach (DictionaryEntry entry in metadata) {\r
- writer.AddAttribute ("name", entry.Key.ToString ());\r
- writer.AddAttribute ("content", entry.Value.ToString ());\r
- writer.RenderBeginTag (HtmlTextWriterTag.Meta);\r
- writer.RenderEndTag ();\r
- }\r
- }\r
- \r
- if (styleSheet != null)\r
- styleSheet.Render (writer);\r
- }\r
- \r
- protected override void AddParsedSubObject (object ob)\r
- {\r
- if (ob is HtmlTitle)\r
- title = (HtmlTitle) ob;\r
- \r
- base.AddParsedSubObject (ob);\r
- }\r
- \r
- protected internal override void AddedControl (Control control, int index)\r
- {\r
- base.AddedControl (control, index);\r
- }\r
- \r
- IList IPageHeader.LinkedStyleSheets {\r
- get {\r
- if (styleSheets == null) styleSheets = new ArrayList ();\r
- return styleSheets;\r
- }\r
- } \r
- \r
- IDictionary IPageHeader.Metadata {\r
- get {\r
- if (metadata == null) metadata = new Hashtable ();\r
- return metadata;\r
- }\r
- }\r
- \r
- IStyleSheet IPageHeader.StyleSheet {\r
- get {\r
- if (styleSheet == null) styleSheet = new StyleSheetBag ();\r
- return styleSheet;\r
- }\r
- }\r
- \r
- string IPageHeader.Title {\r
- get { return title.Text; }\r
- set { title.Text = value; }\r
- }\r
- }\r
- \r
- internal class StyleSheetBag: IStyleSheet\r
- {\r
- ArrayList entries = new ArrayList ();\r
- \r
- internal class StyleEntry\r
- {\r
- public Style Style;\r
- public string Selection;\r
- public IUrlResolutionService UrlResolver;\r
- }\r
- \r
- public StyleSheetBag ()\r
- {\r
- }\r
- \r
- public void CreateStyleRule (Style style, string selection, IUrlResolutionService urlResolver)\r
- {\r
- StyleEntry entry = new StyleEntry ();\r
- entry.Style = style;\r
- entry.UrlResolver = urlResolver;\r
- entry.Selection = selection;\r
- entries.Add (entry);\r
- }\r
- \r
- public void RegisterStyle (Style style, IUrlResolutionService urlResolver)\r
- {\r
- for (int n=0; n<entries.Count; n++) {\r
- if (((StyleEntry)entries[n]).Style == style)\r
- return;\r
- }\r
- \r
- string name = "aspnet_" + entries.Count;\r
- style.SetRegisteredCssClass (name);\r
- CreateStyleRule (style, "." + name, urlResolver);\r
- }\r
- \r
- public void Render (HtmlTextWriter writer)\r
- {\r
- writer.AddAttribute ("type", "text/css");\r
- writer.RenderBeginTag (HtmlTextWriterTag.Style);\r
-\r
- foreach (StyleEntry entry in entries) {\r
- CssStyleCollection sts = entry.Style.GetStyleAttributes (entry.UrlResolver);\r
- writer.Write ("\n" + entry.Selection + " {" + sts.BagToString () + "}");\r
- }\r
-\r
- writer.RenderEndTag ();\r
- }\r
- }\r
-}\r
-\r
-#endif\r
+//
+// System.Web.UI.HtmlControls.HtmlHead
+//
+// Authors:
+// Lluis Sanchez Gual (lluis@novell.com)
+//
+// Copyright (C) 2004-2010 Novell, Inc (http://www.novell.com)
+//
+// 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.ComponentModel;
+using System.Collections;
+using System.Security.Permissions;
+using System.Web.UI.WebControls;
+
+namespace System.Web.UI.HtmlControls
+{
+ // CAS - no InheritanceDemand here as the class is sealed
+ [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+ // attributes
+ [ControlBuilder (typeof(HtmlHeadBuilder))]
+ public sealed class HtmlHead: HtmlGenericControl, IParserAccessor
+ {
+#if NET_4_0
+ string descriptionText;
+ string keywordsText;
+ HtmlMeta descriptionMeta;
+ HtmlMeta keywordsMeta;
+#endif
+ string titleText;
+ HtmlTitle title;
+ //Hashtable metadata;
+ StyleSheetBag styleSheet;
+
+ public HtmlHead(): base("head") {}
+
+ public HtmlHead (string tag) : base (tag)
+ {
+ }
+
+ protected internal override void OnInit (EventArgs e)
+ {
+ base.OnInit (e);
+ Page page = Page;
+
+ if (page == null)
+ throw new HttpException ("The <head runat=\"server\"> control requires a page.");
+
+ //You can only have one <head runat="server"> control on a page.
+ if(page.Header != null)
+ throw new HttpException ("You can only have one <head runat=\"server\"> control on a page.");
+ page.SetHeader (this);
+ }
+
+ protected internal override void RenderChildren (HtmlTextWriter writer)
+ {
+ EnsureTitleControl ();
+
+ base.RenderChildren (writer);
+// if (metadata != null) {
+// foreach (DictionaryEntry entry in metadata) {
+// writer.AddAttribute ("name", entry.Key.ToString ());
+// writer.AddAttribute ("content", entry.Value.ToString ());
+// writer.RenderBeginTag (HtmlTextWriterTag.Meta);
+// writer.RenderEndTag ();
+// }
+// }
+
+ if (styleSheet != null)
+ styleSheet.Render (writer);
+ }
+
+ protected internal override void AddedControl (Control control, int index)
+ {
+ //You can only have one <title> element within the <head> element.
+ HtmlTitle t = control as HtmlTitle;
+ if (t != null) {
+ if (title != null)
+ throw new HttpException ("You can only have one <title> element within the <head> element.");
+ title = t;
+ }
+
+#if NET_4_0
+ HtmlMeta meta = control as HtmlMeta;
+ if (meta != null) {
+ if (String.Compare ("keywords", meta.Name, StringComparison.OrdinalIgnoreCase) == 0)
+ keywordsMeta = meta;
+ else if (String.Compare ("description", meta.Name, StringComparison.OrdinalIgnoreCase) == 0)
+ descriptionMeta = meta;
+ }
+#endif
+ base.AddedControl (control, index);
+ }
+
+ protected internal override void RemovedControl (Control control)
+ {
+ if (title == control)
+ title = null;
+
+#if NET_4_0
+ if (keywordsMeta == control)
+ keywordsMeta = null;
+ else if (descriptionMeta == control)
+ descriptionMeta = null;
+#endif
+ base.RemovedControl (control);
+ }
+
+ void EnsureTitleControl () {
+ if (title != null)
+ return;
+
+ HtmlTitle t = new HtmlTitle ();
+ t.Text = titleText;
+ Controls.Add (t);
+ }
+
+// IList LinkedStyleSheets {
+// get {
+// if (styleSheets == null) styleSheets = new ArrayList ();
+// return styleSheets;
+// }
+// }
+//
+// IDictionary Metadata {
+// get {
+// if (metadata == null) metadata = new Hashtable ();
+// return metadata;
+// }
+// }
+
+#if NET_4_0
+ public string Description {
+ get {
+ if (descriptionMeta != null)
+ return descriptionMeta.Content;
+ return descriptionText;
+ }
+
+ set {
+ if (descriptionMeta != null)
+ descriptionMeta.Content = value;
+ else
+ descriptionText = value;
+ }
+ }
+
+ public string Keywords {
+ get {
+ if (keywordsMeta != null)
+ return keywordsMeta.Content;
+ return keywordsText;
+ }
+
+ set {
+ if (keywordsMeta != null)
+ keywordsMeta.Content = value;
+ else
+ keywordsText = value;
+ }
+ }
+#endif
+
+ public IStyleSheet StyleSheet {
+ get {
+ if (styleSheet == null) styleSheet = new StyleSheetBag ();
+ return styleSheet;
+ }
+ }
+
+ public string Title {
+ get {
+ if (title != null)
+ return title.Text;
+ else
+ return titleText;
+ }
+ set {
+ if (title != null)
+ title.Text = value;
+ else
+ titleText = value;
+ }
+ }
+ }
+
+ internal class StyleSheetBag: IStyleSheet
+ {
+ ArrayList entries = new ArrayList ();
+
+ internal class StyleEntry
+ {
+ public Style Style;
+ public string Selection;
+ public IUrlResolutionService UrlResolver;
+ }
+
+ public StyleSheetBag ()
+ {
+ }
+
+ public void CreateStyleRule (Style style, IUrlResolutionService urlResolver, string selection)
+ {
+ StyleEntry entry = new StyleEntry ();
+ entry.Style = style;
+ entry.UrlResolver = urlResolver;
+ entry.Selection = selection;
+ entries.Add (entry);
+ }
+
+ public void RegisterStyle (Style style, IUrlResolutionService urlResolver)
+ {
+ for (int n=0; n<entries.Count; n++) {
+ if (((StyleEntry)entries[n]).Style == style)
+ return;
+ }
+
+ string name = "aspnet_" + entries.Count;
+ style.SetRegisteredCssClass (name);
+ CreateStyleRule (style, urlResolver, "." + name);
+ }
+
+ public void Render (HtmlTextWriter writer)
+ {
+ writer.AddAttribute ("type", "text/css", false);
+ writer.RenderBeginTag (HtmlTextWriterTag.Style);
+
+ foreach (StyleEntry entry in entries) {
+ CssStyleCollection sts = entry.Style.GetStyleAttributes (entry.UrlResolver);
+ writer.Write ("\n" + entry.Selection + " {" + sts.Value + "}");
+ }
+
+ writer.RenderEndTag ();
+ }
+ }
+}
+
projects / mono.git / blobdiff