private void RenderHead(DropDownMenuRenderingContext renderingContext)
{
// Head-Div is used to group the title and the button, providing a single point of reference
// for the popup-div.
renderingContext.Writer.AddStyleAttribute("position", "relative");
renderingContext.Writer.AddAttribute("id", renderingContext.Control.ClientID + "_HeadDiv");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, CssClassHead);
renderingContext.Writer.AddAttribute("OnMouseOver", "DropDownMenu_OnHeadMouseOver (this)");
renderingContext.Writer.AddAttribute("OnMouseOut", "DropDownMenu_OnHeadMouseOut (this)");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Div); // Begin Drop Down Head-Div
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Cellspacing, "0");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Cellpadding, "0");
renderingContext.Writer.AddStyleAttribute("display", "inline");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Table); // Begin Drop Down Button table
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Tr);
RenderHeadTitle(renderingContext);
RenderHeadButton(renderingContext);
renderingContext.Writer.RenderEndTag();
renderingContext.Writer.RenderEndTag(); // End Drop Down Button table
renderingContext.Writer.RenderEndTag(); // End Drop Down Head-Div
}
private void RenderHeadButton(DropDownMenuRenderingContext renderingContext)
{
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "0%");
renderingContext.Writer.AddStyleAttribute("text-align", "center");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, CssClassHeadButton);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Td); // Begin td
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Id, renderingContext.Control.ClientID + "_DropDownMenuButton");
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "1em");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Href, "#");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.A); // Begin anchor
renderingContext.Writer.AddStyleAttribute("vertical-align", "middle");
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.BorderStyle, "none");
string url = ResourceUrlFactory.CreateResourceUrl(typeof(DropDownMenuQuirksModeRenderer), ResourceType.Image, c_dropDownIcon).GetUrl();
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Src, url);
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Alt, string.Empty);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Img);
renderingContext.Writer.RenderEndTag(); // End img
renderingContext.Writer.RenderEndTag(); // End anchor
renderingContext.Writer.RenderEndTag(); // End td
}
private void RegisterMenuItems(DropDownMenuRenderingContext renderingContext)
{
string key = renderingContext.Control.UniqueID;
if (renderingContext.Control.Enabled && !renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(DropDownMenuQuirksModeRenderer), key))
{
StringBuilder script = new StringBuilder();
script.Append("DropDownMenu_AddMenuInfo" + " (\r\n\t");
script.AppendFormat("new DropDownMenu_MenuInfo ('{0}', new Array (\r\n", renderingContext.Control.ClientID);
bool isFirstItem = true;
WebMenuItem[] menuItems;
if (renderingContext.Control.EnableGrouping)
{
menuItems = renderingContext.Control.MenuItems.GroupMenuItems(true);
}
else
{
menuItems = renderingContext.Control.MenuItems.ToArray();
}
string category = null;
bool isCategoryVisible = false;
for (int i = 0; i < menuItems.Length; i++)
{
WebMenuItem menuItem = menuItems[i];
if (renderingContext.Control.EnableGrouping && category != menuItem.Category)
{
category = menuItem.Category;
isCategoryVisible = false;
}
if (!menuItem.EvaluateVisible())
{
continue;
}
if (renderingContext.Control.EnableGrouping && menuItem.IsSeparator && !isCategoryVisible)
{
continue;
}
if (renderingContext.Control.EnableGrouping)
{
isCategoryVisible = true;
}
if (isFirstItem)
{
isFirstItem = false;
}
else
{
script.AppendFormat(",\r\n");
}
AppendMenuItem(renderingContext, script, menuItem, renderingContext.Control.MenuItems.IndexOf(menuItem));
}
script.Append(" )"); // Close Array
script.Append(" )"); // Close new MenuInfo
script.Append(" );"); // Close AddMenuInfo
renderingContext.Control.Page.ClientScript.RegisterStartupScriptBlock(renderingContext.Control, typeof(DropDownMenuQuirksModeRenderer), key, script.ToString());
}
}
public void RenderAsContextMenu(DropDownMenuRenderingContext renderingContext)
{
ArgumentUtility.CheckNotNull("renderingContext", renderingContext);
RegisterMenuItems(renderingContext);
RegisterEventHandlerScripts(renderingContext);
}
private void AppendMenuItem(DropDownMenuRenderingContext renderingContext, StringBuilder stringBuilder, WebMenuItem menuItem, int menuItemIndex)
{
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 = GetIconUrl(renderingContext, menuItem, showIcon);
string disabledIcon = GetDisabledIconUrl(renderingContext, menuItem, showIcon);
string text = showText ? "'" + menuItem.Text + "'" : "null";
bool isDisabled = !menuItem.EvaluateEnabled() || !isCommandEnabled;
stringBuilder.AppendFormat(
"\t\tnew DropDownMenu_ItemInfo ('{0}', '{1}', {2}, {3}, {4}, {5}, {6}, {7}, {8})",
menuItemIndex,
menuItem.Category,
text,
icon,
disabledIcon,
(int)menuItem.RequiredSelection,
isDisabled ? "true" : "false",
href,
target);
}
protected virtual string GetDisabledIconUrl(DropDownMenuRenderingContext renderingContext, WebMenuItem menuItem, bool showIcon)
{
string disabledIcon = "null";
if (showIcon && menuItem.DisabledIcon.HasRenderingInformation)
{
string url = menuItem.DisabledIcon.Url;
disabledIcon = "'" + renderingContext.Control.ResolveClientUrl(url) + "'";
}
return(disabledIcon);
}
private void RenderHeadTitle(DropDownMenuRenderingContext renderingContext)
{
bool hasHeadTitleContents = true;
if (renderingContext.Control.RenderHeadTitleMethod == null)
{
bool hasTitleText = !string.IsNullOrEmpty(renderingContext.Control.TitleText);
bool hasTitleIcon = renderingContext.Control.TitleIcon != null && !string.IsNullOrEmpty(renderingContext.Control.TitleIcon.Url);
hasHeadTitleContents = hasTitleText || hasTitleIcon;
if (hasHeadTitleContents)
{
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "1%"); //"100%");
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Class, CssClassHeadTitle);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Td); // Begin td
if (renderingContext.Control.Enabled)
{
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.A); // Begin title tag
}
else
{
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Color, "GrayText");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Span); // Begin title tag
}
RenderIcon(renderingContext, renderingContext.Control.TitleIcon);
renderingContext.Writer.Write(renderingContext.Control.TitleText);
renderingContext.Writer.RenderEndTag(); // End title tag
renderingContext.Writer.RenderEndTag(); // End td
}
}
else
{
renderingContext.Control.RenderHeadTitleMethod(renderingContext.Writer);
}
if (hasHeadTitleContents)
{
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Width, "0%");
renderingContext.Writer.AddStyleAttribute("padding-right", "0.3em");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Td); // Begin td
renderingContext.Writer.RenderEndTag();
}
}
private void RenderIcon(DropDownMenuRenderingContext renderingContext, IconInfo icon)
{
if (icon == null || string.IsNullOrEmpty(icon.Url))
{
return;
}
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Src, icon.Url);
if (!icon.Width.IsEmpty && !icon.Height.IsEmpty)
{
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Width, icon.Width.ToString());
renderingContext.Writer.AddAttribute(HtmlTextWriterAttribute.Height, icon.Height.ToString());
}
renderingContext.Writer.AddStyleAttribute("vertical-align", "middle");
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.BorderStyle, "none");
renderingContext.Writer.AddStyleAttribute("margin-right", "0.3em");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Img);
renderingContext.Writer.RenderEndTag();
}
public void Render(DropDownMenuRenderingContext renderingContext)
{
ArgumentUtility.CheckNotNull("renderingContext", renderingContext);
RegisterMenuItems(renderingContext);
RegisterEventHandlerScripts(renderingContext);
AddStandardAttributesToRender(renderingContext);
renderingContext.Writer.AddStyleAttribute(HtmlTextWriterStyle.Display, "inline-block");
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Div);
// Menu-Div filling the control's div is required to apply internal css attributes
// for position, width and height. This allows the Head and th popup-div to align themselves
renderingContext.Writer.AddStyleAttribute("position", "relative");
renderingContext.Writer.AddAttribute("id", renderingContext.Control.MenuHeadClientID);
renderingContext.Writer.RenderBeginTag(HtmlTextWriterTag.Div); // Begin Menu-Div
RenderHead(renderingContext);
renderingContext.Writer.RenderEndTag(); // End Menu-Div
renderingContext.Writer.RenderEndTag(); // End outer div
}
private void RegisterEventHandlerScripts(DropDownMenuRenderingContext renderingContext)
{
string key = typeof(DropDownMenuQuirksModeRenderer).FullName + "_Startup";
if (!renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(DropDownMenuQuirksModeRenderer), key))
{
string styleSheetUrl =
ResourceUrlFactory.CreateResourceUrl(typeof(DropDownMenuQuirksModeRenderer), ResourceType.Html, "DropDownMenu.css").GetUrl();
string script = string.Format("DropDownMenu_InitializeGlobals ('{0}');", styleSheetUrl);
renderingContext.Control.Page.ClientScript.RegisterStartupScriptBlock(renderingContext.Control, typeof(DropDownMenuQuirksModeRenderer), key, script);
}
if (renderingContext.Control.Enabled && renderingContext.Control.Visible && renderingContext.Control.Mode == MenuMode.DropDownMenu)
{
key = renderingContext.Control.ClientID + "_ClickEventHandlerBindScript";
if (!renderingContext.Control.Page.ClientScript.IsStartupScriptRegistered(typeof(DropDownMenuQuirksModeRenderer), key))
{
string elementReference = string.Format("document.getElementById('{0}')", renderingContext.Control.MenuHeadClientID);
string menuIDReference = string.Format("'{0}'", renderingContext.Control.ClientID);
string script = renderingContext.Control.GetBindOpenEventScript(elementReference, menuIDReference, false);
renderingContext.Control.Page.ClientScript.RegisterStartupScriptBlock(renderingContext.Control, typeof(DropDownMenuQuirksModeRenderer), key, script);
}
}
}
