private void RenderDiagnosticMetadataAttributesForListMenuItem(ListMenuRenderingContext renderingContext, WebMenuItem menuItem)
{
if (!string.IsNullOrEmpty(menuItem.ItemID))
{
renderingContext.Writer.AddAttribute(DiagnosticMetadataAttributes.ItemID, menuItem.ItemID);
}
if (!string.IsNullOrEmpty(menuItem.Text))
{
renderingContext.Writer.AddAttribute(DiagnosticMetadataAttributes.Content, HtmlUtility.StripHtmlTags(menuItem.Text));
}
}
private void RegisterMenuItems(ListMenuRenderingContext renderingContext)
{
if (!renderingContext.Control.HasClientScript)
{
return;
}
WebMenuItem[] groupedListMenuItems = renderingContext.Control.MenuItems.GroupMenuItems(false);
string key = renderingContext.Control.UniqueID + "_MenuItems";
if (!renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(ListMenuRenderer), key))
{
StringBuilder script = new StringBuilder();
script.AppendFormat("ListMenu_AddMenuInfo (document.getElementById ('{0}'), \r\n\t", renderingContext.Control.ClientID);
script.AppendFormat("new ListMenu_MenuInfo ('{0}', new Array (\r\n", renderingContext.Control.ClientID);
bool isFirstItemInGroup = true;
for (int idxItems = 0; idxItems < groupedListMenuItems.Length; idxItems++)
{
WebMenuItem currentItem = groupedListMenuItems[idxItems];
if (!currentItem.EvaluateVisible())
{
continue;
}
if (isFirstItemInGroup)
{
isFirstItemInGroup = false;
}
else
{
script.AppendFormat(",\r\n");
}
AppendListMenuItem(renderingContext, script, currentItem);
}
script.Append(" )"); // Close Array
script.Append(" )"); // Close new MenuInfo
script.Append(" );\r\n"); // Close AddMenuInfo
script.Append(renderingContext.Control.GetUpdateScriptReference("null"));
renderingContext.Control.Page.ClientScript.RegisterStartupScriptBlock(
renderingContext.Control,
typeof(ListMenuRenderer),
key,
script.ToString());
}
}
private void RenderListMenuItem(ListMenuRenderingContext renderingContext, WebMenuItem menuItem, int index)
{
bool showIcon = menuItem.Style == WebMenuItemStyle.Icon || menuItem.Style == WebMenuItemStyle.IconAndText;
bool showText = menuItem.Style == WebMenuItemStyle.Text || menuItem.Style == WebMenuItemStyle.IconAndText;
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Id, GetMenuItemClientID(renderingContext, index));
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, "listMenuItem");
if (IsDiagnosticMetadataRenderingEnabled)
{
RenderDiagnosticMetadataAttributesForListMenuItem(renderingContext, menuItem);
}
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Span);
var command = !menuItem.IsDisabled ? menuItem.Command : new Command(CommandType.None)
{
OwnerControl = menuItem.OwnerControl
};
if (string.IsNullOrEmpty(command.ItemID))
{
command.ItemID = "MenuItem_" + index + "_Command";
}
command.RenderBegin(
renderingContext.Writer,
RenderingFeatures,
renderingContext.Control.Page.ClientScript.GetPostBackClientHyperlink(renderingContext.Control, index.ToString()),
new[] { index.ToString() },
"",
null);
if (showIcon && menuItem.Icon.HasRenderingInformation)
{
menuItem.Icon.Render(renderingContext.Writer, renderingContext.Control);
if (showText)
{
renderingContext.Writer.Write(c_whiteSpace);
}
}
if (showText)
{
renderingContext.Writer.Write(menuItem.Text); // Do not HTML encode.
}
command.RenderEnd(renderingContext.Writer);
renderingContext.Writer.RenderEndTag();
}
private IEnumerable <IEnumerable <WebMenuItem> > GetVisibleMenuItemsInGroups(ListMenuRenderingContext renderingContext)
{
var menuItems = renderingContext.Control.MenuItems.GroupMenuItems(false).Where(mi => mi.EvaluateVisible());
var lineBreaks = renderingContext.Control.LineBreaks;
switch (lineBreaks)
{
case ListMenuLineBreaks.All:
return(menuItems.Select(mi => new[] { mi }.AsEnumerable()));
case ListMenuLineBreaks.BetweenGroups:
return(menuItems.GroupBy(mi => mi.Category).Select(g => g.AsEnumerable()));
case ListMenuLineBreaks.None:
return(new[] { menuItems });
default:
throw new InvalidOperationException(string.Format("'{0}' is not a valid option for ListMenuLineBreaks enum.", lineBreaks));
}
}
public void Render(ListMenuRenderingContext renderingContext)
{
ArgumentUtility.CheckNotNull("renderingContext", renderingContext);
RegisterMenuItems(renderingContext);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Id, renderingContext.Control.ClientID);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Cellspacing, "0");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Cellpadding, "0");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Border, "0");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, CssClassListMenu);
if (IsDiagnosticMetadataRenderingEnabled)
{
AddDiagnosticMetadataAttributes(renderingContext);
}
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Table);
var groupedMenuItems = GetVisibleMenuItemsInGroups(renderingContext);
foreach (var menuItemsInGroup in groupedMenuItems)
{
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Tr);
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "100%");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, "listMenuRow");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Td);
foreach (var menuItem in menuItemsInGroup)
{
RenderListMenuItem(renderingContext, menuItem, renderingContext.Control.MenuItems.IndexOf(menuItem));
}
renderingContext.Writer.RenderEndTag();
renderingContext.Writer.RenderEndTag();
}
//WebMenuItem[] groupedListMenuItems = renderingContext.Control.MenuItems.GroupMenuItems (false).Where (mi=>mi.EvaluateVisible()).ToArray();
//bool isFirstItem = true;
//for (int idxItems = 0; idxItems < groupedListMenuItems.Length; idxItems++)
//{
// WebMenuItem currentItem = groupedListMenuItems[idxItems];
// bool isLastItem = (idxItems == (groupedListMenuItems.Length - 1));
// bool isFirstCategoryItem = (isFirstItem || (groupedListMenuItems[idxItems - 1].Category != currentItem.Category));
// bool isLastCategoryItem = (isLastItem || (groupedListMenuItems[idxItems + 1].Category != currentItem.Category));
// bool hasAlwaysLineBreaks = (renderingContext.Control.LineBreaks == ListMenuLineBreaks.All);
// bool hasCategoryLineBreaks = (renderingContext.Control.LineBreaks == ListMenuLineBreaks.BetweenGroups);
// if (hasAlwaysLineBreaks || (hasCategoryLineBreaks && isFirstCategoryItem) || isFirstItem)
// {
// renderingContext.Writer.RenderBeginTag (HtmlTextWriterTag.Tr);
// renderingContext.Writer.AddStyleAttribute (HtmlTextWriterStyle.Width, "100%");
// renderingContext.Writer.AddAttribute (HtmlTextWriterAttribute.Class, "listMenuRow");
// renderingContext.Writer.RenderBeginTag (HtmlTextWriterTag.Td);
// }
// RenderListMenuItem (renderingContext, currentItem, renderingContext.Control.MenuItems.IndexOf (currentItem));
// if (hasAlwaysLineBreaks || (hasCategoryLineBreaks && isLastCategoryItem) || isLastItem)
// {
// renderingContext.Writer.RenderEndTag ();
// renderingContext.Writer.RenderEndTag ();
// }
// if (isFirstItem)
// isFirstItem = false;
//}
renderingContext.Writer.RenderEndTag();
}
private string GetMenuItemClientID(ListMenuRenderingContext renderingContext, int menuItemIndex)
{
return(renderingContext.Control.ClientID + "_" + menuItemIndex);
}
private void AppendListMenuItem(ListMenuRenderingContext renderingContext, StringBuilder stringBuilder, WebMenuItem menuItem)
{
int menuItemIndex = renderingContext.Control.MenuItems.IndexOf(menuItem);
string href = "null";
string target = "null";
bool isCommandEnabled = true;
if (menuItem.Command != null)
{
bool isActive = menuItem.Command.Show == CommandShow.Always ||
renderingContext.Control.IsReadOnly && menuItem.Command.Show == CommandShow.ReadOnly ||
!renderingContext.Control.IsReadOnly && menuItem.Command.Show == CommandShow.EditMode;
isCommandEnabled = isActive && menuItem.Command.Type != CommandType.None;
if (isCommandEnabled)
{
bool isPostBackCommand = menuItem.Command.Type == CommandType.Event ||
menuItem.Command.Type == CommandType.WxeFunction;
if (isPostBackCommand)
{
// Clientside script creates an anchor with href="#" and onclick=function
string argument = menuItemIndex.ToString();
href = renderingContext.Control.Page.ClientScript.GetPostBackClientHyperlink(renderingContext.Control, argument) + ";";
href = ScriptUtility.EscapeClientScript(href);
href = "'" + href + "'";
}
else if (menuItem.Command.Type == CommandType.Href)
{
href = menuItem.Command.HrefCommand.FormatHref(menuItemIndex.ToString(), menuItem.ItemID);
href = "'" + renderingContext.Control.ResolveClientUrl(href) + "'";
target = "'" + menuItem.Command.HrefCommand.Target + "'";
}
}
}
bool showIcon = menuItem.Style == WebMenuItemStyle.Icon || menuItem.Style == WebMenuItemStyle.IconAndText;
bool showText = menuItem.Style == WebMenuItemStyle.Text || menuItem.Style == WebMenuItemStyle.IconAndText;
string icon = "null";
if (showIcon && menuItem.Icon.HasRenderingInformation)
{
icon = "'" + renderingContext.Control.ResolveClientUrl(menuItem.Icon.Url) + "'";
}
string disabledIcon = "null";
if (showIcon && menuItem.DisabledIcon.HasRenderingInformation)
{
disabledIcon = "'" + renderingContext.Control.ResolveClientUrl(menuItem.DisabledIcon.Url) + "'";
}
string text = showText ? "'" + menuItem.Text + "'" : "null";
bool isDisabled = !renderingContext.Control.Enabled ||
!menuItem.EvaluateEnabled() ||
!isCommandEnabled;
stringBuilder.AppendFormat(
"\t\tnew ListMenuItemInfo ('{0}', '{1}', {2}, {3}, {4}, {5}, {6}, {7}, {8})",
GetMenuItemClientID(renderingContext, menuItemIndex),
menuItem.Category,
text,
icon,
disabledIcon,
(int)menuItem.RequiredSelection,
isDisabled ? "true" : "false",
href,
target);
}