mcs/class/System.Web/System.Web.UI.WebControls/MenuTableRenderer.cs

   1 //
   2 // Authors:
   3 //      Lluis Sanchez Gual (lluis@novell.com)
   4 //      Igor Zelmanovich (igorz@mainsoft.com)
   5 //      Marek Habersack <grendel@twistedcode.net>
   6 //
   7 // (C) 2010 Novell, Inc (http://novell.com)
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.Collections.Generic;
  32 using System.Text;
  33 using System.Web;
  34 using System.Web.UI;
  35 using System.Web.UI.HtmlControls;
  36
  37 namespace System.Web.UI.WebControls
  38 {
  39         sealed class MenuTableRenderer : BaseMenuRenderer
  40         {
  41                 const string onPreRenderScript = "var {0} = new Object ();\n{0}.webForm = {1};\n{0}.disappearAfter = {2};\n{0}.vertical = {3};";
  42
  43                 public override HtmlTextWriterTag Tag {
  44                         get { return HtmlTextWriterTag.Table; }
  45
  46                 }
  47
  48                 public MenuTableRenderer (Menu owner)
  49                         : base (owner)
  50                 {
  51                 }
  52
  53                 public override void AddAttributesToRender (HtmlTextWriter writer)
  54                 {
  55                         writer.AddAttribute ("cellpadding", "0", false);
  56                         writer.AddAttribute ("cellspacing", "0", false);
  57                         writer.AddAttribute ("border", "0", false);
  58
  59                         base.AddAttributesToRender (writer);
  60                 }
  61
  62                 public override void PreRender (Page page, HtmlHead head, ClientScriptManager csm, string cmenu, StringBuilder script)
  63                 {
  64                         Menu owner = Owner;
  65                         MenuItemStyle staticMenuItemStyle = owner.StaticMenuItemStyleInternal;
  66                         SubMenuStyle staticMenuStyle = owner.StaticMenuStyleInternal;
  67                         MenuItemStyle dynamicMenuItemStyle = owner.DynamicMenuItemStyleInternal;
  68                         SubMenuStyle dynamicMenuStyle = owner.DynamicMenuStyleInternal;
  69                         MenuItemStyleCollection levelMenuItemStyles = owner.LevelMenuItemStyles;
  70                         List<Style> levelMenuItemLinkStyles = owner.LevelMenuItemLinkStyles;
  71                         SubMenuStyleCollection levelSubMenuStyles = owner.LevelSubMenuStylesInternal;
  72                         MenuItemStyle staticSelectedStyle = owner.StaticSelectedStyleInternal;
  73                         MenuItemStyle dynamicSelectedStyle = owner.DynamicSelectedStyleInternal;
  74                         MenuItemStyleCollection levelSelectedStyles = owner.LevelSelectedStylesInternal;
  75                         List<Style> levelSelectedLinkStyles = owner.LevelSelectedLinkStyles;
  76                         Style staticHoverStyle = owner.StaticHoverStyleInternal;
  77                         Style dynamicHoverStyle = owner.DynamicHoverStyleInternal;
  78
  79                         if (!csm.IsClientScriptIncludeRegistered (typeof (Menu), "Menu.js")) {
  80                                 string url = csm.GetWebResourceUrl (typeof (Menu), "Menu.js");
  81                                 csm.RegisterClientScriptInclude (typeof (Menu), "Menu.js", url);
  82                         }
  83
  84                         script.AppendFormat (onPreRenderScript,
  85                                              cmenu,
  86                                              page.IsMultiForm ? page.theForm : "window",
  87                                              ClientScriptManager.GetScriptLiteral (owner.DisappearAfter),
  88                                              ClientScriptManager.GetScriptLiteral (owner.Orientation == Orientation.Vertical));
  89
  90                         if (owner.DynamicHorizontalOffset != 0)
  91                                 script.Append (String.Concat (cmenu, ".dho = ", ClientScriptManager.GetScriptLiteral (owner.DynamicHorizontalOffset), ";\n"));
  92                         if (owner.DynamicVerticalOffset != 0)
  93                                 script.Append (String.Concat (cmenu, ".dvo = ", ClientScriptManager.GetScriptLiteral (owner.DynamicVerticalOffset), ";\n"));
  94
  95                         // The order in which styles are defined matters when more than one class
  96                         // is assigned to an element
  97                         RegisterStyle (owner.PopOutBoxStyle, head);
  98                         RegisterStyle (owner.ControlStyle, owner.ControlLinkStyle, head);
  99
 100                         if (staticMenuItemStyle != null)
 101                                 RegisterStyle (owner.StaticMenuItemStyle, owner.StaticMenuItemLinkStyle, head);
 102
 103                         if (staticMenuStyle != null)
 104                                 RegisterStyle (owner.StaticMenuStyle, head);
 105
 106                         if (dynamicMenuItemStyle != null)
 107                                 RegisterStyle (owner.DynamicMenuItemStyle, owner.DynamicMenuItemLinkStyle, head);
 108
 109                         if (dynamicMenuStyle != null)
 110                                 RegisterStyle (owner.DynamicMenuStyle, head);
 111
 112                         if (levelMenuItemStyles != null && levelMenuItemStyles.Count > 0) {
 113                                 levelMenuItemLinkStyles = new List<Style> (levelMenuItemStyles.Count);
 114                                 foreach (Style style in levelMenuItemStyles) {
 115                                         Style linkStyle = new Style ();
 116                                         levelMenuItemLinkStyles.Add (linkStyle);
 117                                         RegisterStyle (style, linkStyle, head);
 118                                 }
 119                         }
 120
 121                         if (levelSubMenuStyles != null)
 122                                 foreach (Style style in levelSubMenuStyles)
 123                                         RegisterStyle (style, head);
 124
 125                         if (staticSelectedStyle != null)
 126                                 RegisterStyle (staticSelectedStyle, owner.StaticSelectedLinkStyle, head);
 127
 128                         if (dynamicSelectedStyle != null)
 129                                 RegisterStyle (dynamicSelectedStyle, owner.DynamicSelectedLinkStyle, head);
 130
 131                         if (levelSelectedStyles != null && levelSelectedStyles.Count > 0) {
 132                                 levelSelectedLinkStyles = new List<Style> (levelSelectedStyles.Count);
 133                                 foreach (Style style in levelSelectedStyles) {
 134                                         Style linkStyle = new Style ();
 135                                         levelSelectedLinkStyles.Add (linkStyle);
 136                                         RegisterStyle (style, linkStyle, head);
 137                                 }
 138                         }
 139
 140                         if (staticHoverStyle != null) {
 141                                 if (head == null)
 142                                         throw new InvalidOperationException ("Using Menu.StaticHoverStyle requires Page.Header to be non-null (e.g. <head runat=\"server\" />).");
 143                                 RegisterStyle (staticHoverStyle, owner.StaticHoverLinkStyle, head);
 144                                 script.Append (String.Concat (cmenu, ".staticHover = ", ClientScriptManager.GetScriptLiteral (staticHoverStyle.RegisteredCssClass), ";\n"));
 145                                 script.Append (String.Concat (cmenu, ".staticLinkHover = ", ClientScriptManager.GetScriptLiteral (owner.StaticHoverLinkStyle.RegisteredCssClass), ";\n"));
 146                         }
 147
 148                         if (dynamicHoverStyle != null) {
 149                                 if (head == null)
 150                                         throw new InvalidOperationException ("Using Menu.DynamicHoverStyle requires Page.Header to be non-null (e.g. <head runat=\"server\" />).");
 151                                 RegisterStyle (dynamicHoverStyle, owner.DynamicHoverLinkStyle, head);
 152                                 script.Append (String.Concat (cmenu, ".dynamicHover = ", ClientScriptManager.GetScriptLiteral (dynamicHoverStyle.RegisteredCssClass), ";\n"));
 153                                 script.Append (String.Concat (cmenu, ".dynamicLinkHover = ", ClientScriptManager.GetScriptLiteral (owner.DynamicHoverLinkStyle.RegisteredCssClass), ";\n"));
 154                         }
 155                 }
 156
 157                 public override void RenderBeginTag (HtmlTextWriter writer, string skipLinkText)
 158                 {
 159                         Menu owner = Owner;
 160
 161                         // <a href="#ID_SkipLink">
 162                         writer.AddAttribute (HtmlTextWriterAttribute.Href, "#" + owner.ClientID + "_SkipLink");
 163                         writer.RenderBeginTag (HtmlTextWriterTag.A);
 164
 165                         // <img alt="" height="0" width="0" src="" style="border-width:0px;"/>
 166                         writer.AddAttribute (HtmlTextWriterAttribute.Alt, skipLinkText);
 167                         writer.AddAttribute (HtmlTextWriterAttribute.Height, "0");
 168                         writer.AddAttribute (HtmlTextWriterAttribute.Width, "0");
 169
 170                         Page page = owner.Page;
 171                         ClientScriptManager csm = page != null ? page.ClientScript : new ClientScriptManager (null);
 172
 173                         writer.AddAttribute (HtmlTextWriterAttribute.Src, csm.GetWebResourceUrl (typeof (SiteMapPath), "transparent.gif"));
 174                         writer.AddStyleAttribute (HtmlTextWriterStyle.BorderWidth, "0px");
 175                         writer.RenderBeginTag (HtmlTextWriterTag.Img);
 176                         writer.RenderEndTag ();
 177
 178                         writer.RenderEndTag (); // </a>
 179                 }
 180
 181                 public override void RenderEndTag (HtmlTextWriter writer)
 182                 {
 183                         Menu owner = Owner;
 184                         if (owner.StaticDisplayLevels == 1 && owner.MaximumDynamicDisplayLevels > 0)
 185                                 owner.RenderDynamicMenu (writer, owner.Items);
 186                 }
 187
 188                 public override void RenderContents (HtmlTextWriter writer)
 189                 {
 190                         Menu owner = Owner;
 191                         RenderMenuBody (writer, owner.Items, owner.Orientation == Orientation.Vertical, false, false);
 192                 }
 193
 194                 void RenderMenuBeginTagAttributes (HtmlTextWriter writer, bool dynamic, int menuLevel)
 195                 {
 196                         writer.AddAttribute ("cellpadding", "0", false);
 197                         writer.AddAttribute ("cellspacing", "0", false);
 198                         writer.AddAttribute ("border", "0", false);
 199
 200                         if (!dynamic) {
 201                                 SubMenuStyle style = new SubMenuStyle ();
 202                                 FillMenuStyle (null, dynamic, menuLevel, style);
 203                                 style.AddAttributesToRender (writer);
 204                         }
 205                 }
 206
 207                 public override void RenderMenuBeginTag (HtmlTextWriter writer, bool dynamic, int menuLevel)
 208                 {
 209                         RenderMenuBeginTagAttributes (writer, dynamic, menuLevel);
 210                         writer.RenderBeginTag (HtmlTextWriterTag.Table);
 211                 }
 212
 213                 void RenderMenuItemSpacing (HtmlTextWriter writer, Unit itemSpacing, bool vertical)
 214                 {
 215                         if (vertical) {
 216                                 writer.AddStyleAttribute ("height", itemSpacing.ToString ());
 217                                 writer.RenderBeginTag (HtmlTextWriterTag.Tr);
 218                                 writer.RenderBeginTag (HtmlTextWriterTag.Td);
 219                                 writer.RenderEndTag ();
 220                                 writer.RenderEndTag ();
 221                         } else {
 222                                 writer.AddStyleAttribute ("width", itemSpacing.ToString ());
 223                                 writer.RenderBeginTag (HtmlTextWriterTag.Td);
 224                                 writer.RenderEndTag ();
 225                         }
 226                 }
 227
 228                 public override void RenderMenuBody (HtmlTextWriter writer, MenuItemCollection items, bool vertical, bool dynamic, bool notLast)
 229                 {
 230                         Menu owner = Owner;
 231                         if (!vertical)
 232                                 writer.RenderBeginTag (HtmlTextWriterTag.Tr);
 233
 234                         int count = items.Count;
 235                         var oc = new OwnerContext (this);
 236
 237                         for (int n = 0; n < count; n++) {
 238                                 MenuItem item = items [n];
 239                                 Adapters.MenuAdapter adapter = owner.Adapter as Adapters.MenuAdapter;
 240                                 if (adapter != null)
 241                                         adapter.RenderItem (writer, item, n);
 242                                 else
 243                                         RenderMenuItem (writer, item, vertical, (n + 1) == count ? notLast : true, n == 0, oc);
 244                         }
 245
 246                         if (!vertical)
 247                                 writer.RenderEndTag (); // TR
 248                 }
 249
 250                 protected override void RenderMenuItem (HtmlTextWriter writer, MenuItem item, bool vertical, bool notLast, bool isFirst, OwnerContext oc)
 251                 {
 252                         Menu owner = Owner;
 253                         string clientID = oc.ClientID;
 254                         bool displayChildren = owner.DisplayChildren (item);
 255                         bool dynamicChildren = displayChildren && (item.Depth + 1 >= oc.StaticDisplayLevels);
 256                         bool isDynamicItem = IsDynamicItem (owner, item);
 257                         bool isVertical = oc.IsVertical || isDynamicItem;
 258                         Unit itemSpacing = owner.GetItemSpacing (item, isDynamicItem);
 259
 260                         if (itemSpacing != Unit.Empty && (item.Depth > 0 || !isFirst))
 261                                 RenderMenuItemSpacing (writer, itemSpacing, isVertical);
 262
 263                         if(!String.IsNullOrEmpty(item.ToolTip))
 264                                 writer.AddAttribute (HtmlTextWriterAttribute.Title, item.ToolTip);
 265                         if (isVertical)
 266                                 writer.RenderBeginTag (HtmlTextWriterTag.Tr);
 267
 268                         string parentId = isDynamicItem ? "'" + item.Parent.Path + "'" : "null";
 269                         if (dynamicChildren) {
 270                                 writer.AddAttribute ("onmouseover",
 271                                                      "javascript:Menu_OverItem ('" + clientID + "','" + item.Path + "'," + parentId + ")");
 272                                 writer.AddAttribute ("onmouseout",
 273                                                      "javascript:Menu_OutItem ('" + clientID + "','" + item.Path + "')");
 274                         } else if (isDynamicItem) {
 275                                 writer.AddAttribute ("onmouseover",
 276                                                      "javascript:Menu_OverDynamicLeafItem ('" + clientID + "','" + item.Path + "'," + parentId + ")");
 277                                 writer.AddAttribute ("onmouseout",
 278                                                      "javascript:Menu_OutItem ('" + clientID + "','" + item.Path + "'," + parentId + ")");
 279                         } else {
 280                                 writer.AddAttribute ("onmouseover",
 281                                                      "javascript:Menu_OverStaticLeafItem ('" + clientID + "','" + item.Path + "')");
 282                                 writer.AddAttribute ("onmouseout",
 283                                                      "javascript:Menu_OutItem ('" + clientID + "','" + item.Path + "')");
 284                         }
 285
 286                         writer.RenderBeginTag (HtmlTextWriterTag.Td);
 287
 288                         // Top separator image
 289
 290                         if (isDynamicItem)
 291                                 RenderSeparatorImage (owner, writer, oc.DynamicTopSeparatorImageUrl, false);
 292                         else
 293                                 RenderSeparatorImage (owner, writer, oc.StaticTopSeparatorImageUrl, false);
 294
 295                         // Menu item box
 296
 297                         MenuItemStyle style = new MenuItemStyle ();
 298
 299                         if (oc.Header != null) {
 300                                 // styles are registered
 301                                 if (!isDynamicItem && oc.StaticMenuItemStyle != null) {
 302                                         AddCssClass (style, oc.StaticMenuItemStyle.CssClass);
 303                                         AddCssClass (style, oc.StaticMenuItemStyle.RegisteredCssClass);
 304                                 }
 305                                 if (isDynamicItem && oc.DynamicMenuItemStyle != null) {
 306                                         AddCssClass (style, oc.DynamicMenuItemStyle.CssClass);
 307                                         AddCssClass (style, oc.DynamicMenuItemStyle.RegisteredCssClass);
 308                                 }
 309                                 if (oc.LevelMenuItemStyles != null && oc.LevelMenuItemStyles.Count > item.Depth) {
 310                                         AddCssClass (style, oc.LevelMenuItemStyles [item.Depth].CssClass);
 311                                         AddCssClass (style, oc.LevelMenuItemStyles [item.Depth].RegisteredCssClass);
 312                                 }
 313                                 if (item == oc.SelectedItem) {
 314                                         if (!isDynamicItem && oc.StaticSelectedStyle != null) {
 315                                                 AddCssClass (style, oc.StaticSelectedStyle.CssClass);
 316                                                 AddCssClass (style, oc.StaticSelectedStyle.RegisteredCssClass);
 317                                         }
 318                                         if (isDynamicItem && oc.DynamicSelectedStyle != null) {
 319                                                 AddCssClass (style, oc.DynamicSelectedStyle.CssClass);
 320                                                 AddCssClass (style, oc.DynamicSelectedStyle.RegisteredCssClass);
 321                                         }
 322                                         if (oc.LevelSelectedStyles != null && oc.LevelSelectedStyles.Count > item.Depth) {
 323                                                 AddCssClass (style, oc.LevelSelectedStyles [item.Depth].CssClass);
 324                                                 AddCssClass (style, oc.LevelSelectedStyles [item.Depth].RegisteredCssClass);
 325                                         }
 326                                 }
 327                         } else {
 328                                 // styles are not registered
 329                                 if (!isDynamicItem && oc.StaticMenuItemStyle != null)
 330                                         style.CopyFrom (oc.StaticMenuItemStyle);
 331                                 if (isDynamicItem && oc.DynamicMenuItemStyle != null)
 332                                         style.CopyFrom (oc.DynamicMenuItemStyle);
 333                                 if (oc.LevelMenuItemStyles != null && oc.LevelMenuItemStyles.Count > item.Depth)
 334                                         style.CopyFrom (oc.LevelMenuItemStyles [item.Depth]);
 335                                 if (item == oc.SelectedItem) {
 336                                         if (!isDynamicItem && oc.StaticSelectedStyle != null)
 337                                                 style.CopyFrom (oc.StaticSelectedStyle);
 338                                         if (isDynamicItem && oc.DynamicSelectedStyle != null)
 339                                                 style.CopyFrom (oc.DynamicSelectedStyle);
 340                                         if (oc.LevelSelectedStyles != null && oc.LevelSelectedStyles.Count > item.Depth)
 341                                                 style.CopyFrom (oc.LevelSelectedStyles [item.Depth]);
 342                                 }
 343                         }
 344                         style.AddAttributesToRender (writer);
 345
 346                         writer.AddAttribute ("id", GetItemClientId (clientID, item, "i"));
 347                         writer.AddAttribute ("cellpadding", "0", false);
 348                         writer.AddAttribute ("cellspacing", "0", false);
 349                         writer.AddAttribute ("border", "0", false);
 350                         writer.AddAttribute ("width", "100%", false);
 351                         writer.RenderBeginTag (HtmlTextWriterTag.Table);
 352                         writer.RenderBeginTag (HtmlTextWriterTag.Tr);
 353
 354                         // Menu item text
 355
 356                         if (isVertical)
 357                                 writer.AddStyleAttribute (HtmlTextWriterStyle.Width, "100%");
 358                         if (!owner.ItemWrap)
 359                                 writer.AddStyleAttribute ("white-space", "nowrap");
 360                         writer.RenderBeginTag (HtmlTextWriterTag.Td);
 361
 362                         RenderItemHref (owner, writer, item);
 363
 364                         Style linkStyle = new Style ();
 365                         if (oc.Header != null) {
 366                                 // styles are registered
 367                                 AddCssClass (linkStyle, oc.ControlLinkStyle.RegisteredCssClass);
 368
 369                                 if (!isDynamicItem && oc.StaticMenuItemStyle != null) {
 370                                         AddCssClass (linkStyle, oc.StaticMenuItemStyle.CssClass);
 371                                         AddCssClass (linkStyle, oc.StaticMenuItemLinkStyle.RegisteredCssClass);
 372                                 }
 373                                 if (isDynamicItem && oc.DynamicMenuItemStyle != null) {
 374                                         AddCssClass (linkStyle, oc.DynamicMenuItemStyle.CssClass);
 375                                         AddCssClass (linkStyle, oc.DynamicMenuItemLinkStyle.RegisteredCssClass);
 376                                 }
 377                                 if (oc.LevelMenuItemStyles != null && oc.LevelMenuItemStyles.Count > item.Depth) {
 378                                         AddCssClass (linkStyle, oc.LevelMenuItemStyles [item.Depth].CssClass);
 379                                         AddCssClass (linkStyle, oc.LevelMenuItemLinkStyles [item.Depth].RegisteredCssClass);
 380                                 }
 381                                 if (item == oc.SelectedItem) {
 382                                         if (!isDynamicItem && oc.StaticSelectedStyle != null) {
 383                                                 AddCssClass (linkStyle, oc.StaticSelectedStyle.CssClass);
 384                                                 AddCssClass (linkStyle, oc.StaticSelectedLinkStyle.RegisteredCssClass);
 385                                         }
 386                                         if (isDynamicItem && oc.DynamicSelectedStyle != null) {
 387                                                 AddCssClass (linkStyle, oc.DynamicSelectedStyle.CssClass);
 388                                                 AddCssClass (linkStyle, oc.DynamicSelectedLinkStyle.RegisteredCssClass);
 389                                         }
 390                                         if (oc.LevelSelectedStyles != null && oc.LevelSelectedStyles.Count > item.Depth) {
 391                                                 AddCssClass (linkStyle, oc.LevelSelectedStyles [item.Depth].CssClass);
 392                                                 AddCssClass (linkStyle, oc.LevelSelectedLinkStyles [item.Depth].RegisteredCssClass);
 393                                         }
 394                                 }
 395                         } else {
 396                                 // styles are not registered
 397                                 linkStyle.CopyFrom (oc.ControlLinkStyle);
 398
 399                                 if (!isDynamicItem && oc.StaticMenuItemStyle != null)
 400                                         linkStyle.CopyFrom (oc.StaticMenuItemLinkStyle);
 401                                 if (isDynamicItem && oc.DynamicMenuItemStyle != null)
 402                                         linkStyle.CopyFrom (oc.DynamicMenuItemLinkStyle);
 403                                 if (oc.LevelMenuItemStyles != null && oc.LevelMenuItemStyles.Count > item.Depth)
 404                                         linkStyle.CopyFrom (oc.LevelMenuItemLinkStyles [item.Depth]);
 405                                 if (item == oc.SelectedItem) {
 406                                         if (!isDynamicItem && oc.StaticSelectedStyle != null)
 407                                                 linkStyle.CopyFrom (oc.StaticSelectedLinkStyle);
 408                                         if (isDynamicItem && oc.DynamicSelectedStyle != null)
 409                                                 linkStyle.CopyFrom (oc.DynamicSelectedLinkStyle);
 410                                         if (oc.LevelSelectedStyles != null && oc.LevelSelectedStyles.Count > item.Depth)
 411                                                 linkStyle.CopyFrom (oc.LevelSelectedLinkStyles [item.Depth]);
 412                                 }
 413
 414                                 linkStyle.AlwaysRenderTextDecoration = true;
 415                         }
 416                         linkStyle.AddAttributesToRender (writer);
 417
 418                         writer.AddAttribute ("id", GetItemClientId (clientID, item, "l"));
 419
 420                         if (item.Depth > 0 && !isDynamicItem) {
 421                                 double value;
 422                                 Unit unit = oc.StaticSubMenuIndent;
 423                                 if (unit == Unit.Empty)
 424                                         value = 16;
 425                                 else
 426                                         value = unit.Value;
 427                                 Unit indent = new Unit (value * item.Depth, oc.StaticSubMenuIndent.Type);
 428                                 writer.AddStyleAttribute (HtmlTextWriterStyle.MarginLeft, indent.ToString ());
 429                         }
 430                         writer.RenderBeginTag (HtmlTextWriterTag.A);
 431                         owner.RenderItemContent (writer, item, isDynamicItem);
 432                         writer.RenderEndTag (); // A
 433
 434                         writer.RenderEndTag (); // TD
 435
 436                         // Popup image
 437
 438                         if (dynamicChildren) {
 439                                 string popOutImage = GetPopOutImage (owner, item, isDynamicItem);
 440                                 if (popOutImage != null) {
 441                                         writer.RenderBeginTag (HtmlTextWriterTag.Td);
 442                                         writer.AddAttribute ("src", owner.ResolveClientUrl (popOutImage));
 443                                         writer.AddAttribute ("border", "0");
 444                                         string toolTip = String.Format (isDynamicItem ? oc.DynamicPopOutImageTextFormatString : oc.StaticPopOutImageTextFormatString, item.Text);
 445                                         writer.AddAttribute (HtmlTextWriterAttribute.Alt, toolTip);
 446                                         writer.RenderBeginTag (HtmlTextWriterTag.Img);
 447                                         writer.RenderEndTag (); // IMG
 448                                         writer.RenderEndTag (); // TD
 449                                 }
 450                         }
 451
 452                         writer.RenderEndTag (); // TR
 453                         writer.RenderEndTag (); // TABLE
 454
 455                         writer.RenderEndTag (); // TD
 456
 457                         if (!isVertical && itemSpacing == Unit.Empty && (notLast || (displayChildren && !dynamicChildren))) {
 458                                 writer.AddStyleAttribute ("width", "3px");
 459                                 writer.RenderBeginTag (HtmlTextWriterTag.Td);
 460                                 writer.RenderEndTag ();
 461                         }
 462
 463                         // Bottom separator image
 464                         string separatorImg = item.SeparatorImageUrl;
 465                         if (separatorImg.Length == 0) {
 466                                 if (isDynamicItem)
 467                                         separatorImg = oc.DynamicBottomSeparatorImageUrl;
 468                                 else
 469                                         separatorImg = oc.StaticBottomSeparatorImageUrl;
 470                         }
 471
 472                         if (separatorImg.Length > 0) {
 473                                 if (!isVertical)
 474                                         writer.RenderBeginTag (HtmlTextWriterTag.Td);
 475                                 RenderSeparatorImage (owner, writer, separatorImg, false);
 476                                 if (!isVertical)
 477                                         writer.RenderEndTag (); // TD
 478                         }
 479
 480                         if (isVertical)
 481                                 writer.RenderEndTag (); // TR
 482
 483                         if (itemSpacing != Unit.Empty)
 484                                 RenderMenuItemSpacing (writer, itemSpacing, isVertical);
 485
 486                         // Submenu
 487
 488                         if (displayChildren && !dynamicChildren) {
 489                                 if (isVertical)
 490                                         writer.RenderBeginTag (HtmlTextWriterTag.Tr);
 491                                 writer.RenderBeginTag (HtmlTextWriterTag.Td);
 492                                 writer.AddAttribute ("width", "100%");
 493                                 owner.RenderMenu (writer, item.ChildItems, vertical, false, item.Depth + 1, notLast);
 494                                 if (item.Depth + 2 == oc.StaticDisplayLevels)
 495                                         owner.RenderDynamicMenu (writer, item.ChildItems);
 496                                 writer.RenderEndTag (); // TD
 497                                 if (isVertical)
 498                                         writer.RenderEndTag (); // TR
 499                         }
 500                 }
 501
 502                 public override bool IsDynamicItem (Menu owner, MenuItem item)
 503                 {
 504                         if (owner == null)
 505                                 throw new ArgumentNullException ("owner");
 506
 507                         if (item == null)
 508                                 throw new ArgumentNullException ("item");
 509
 510                         return item.Depth + 1 > owner.StaticDisplayLevels;
 511                 }
 512         }
 513 }