/// <summary>
/// BuildMenu builds the top-level menu. It is called from the OnDataBinding method as well
/// as from <see cref="CreateChildControls"/>. It has code to check if the top-level menu should be
/// laid out horizontally or vertically.
/// </summary>
protected virtual void BuildMenu()
{
string image = string.Empty;
string mouseoverimage = string.Empty;
string mousedownimage = string.Empty;
string mouseupimage = string.Empty;
// iterate through the Items
Table menu = new Table();
menu.Attributes.Add("id", this.ClientID);
menu.MergeStyle(this.ControlStyle);
menu.CellPadding = ItemPadding;
menu.CellSpacing = ItemSpacing;
menu.GridLines = GridLines;
// Add the Menu control's STYLE properties to the TABLE
IEnumerator key = this.Style.Keys.GetEnumerator();
while(key.MoveNext())
{
string k = key.Current.ToString();
menu.Style.Add(k, this.Style[k]);
}
menu.Style.Remove("Z-INDEX"); // remove z-index added automatically by grid positioning
// set the Z-INDEX
menu.Style.Add("z-index", this.zIndex.ToString());
curzindex = this.zIndex + 2;
BuildOpacity(menu);
TableRow tr = null;
if (Layout == MenuLayout.Horizontal)
tr = new TableRow();
// Iterate through the top-level menu's menuitems, and add a <td> tag for each menuItem
for (int i = 0; i < this.items.Count; i++)
{
MenuItem mi = this.items[i];
//add by johnny start
if (this.MainSpacingWidth != 0)
{
if (i % 2 == 1)
{
TableCell tdblank = new TableCell();
tdblank.Width=this.MainSpacingWidth;
tdblank.BackColor = Color.Empty;
tr.Cells.Add(tdblank);
}
}
//end
// only render this MenuItem if it is visible and the user has permissions
if (mi.Visible && UserHasPermission(mi))
{
if (Layout == MenuLayout.Vertical)
tr = new TableRow();
TableCell td = new TableCell();
td.ApplyStyle(this.unselectedMenuItemStyle);
// The style is overwritten by anything specifically set in menuitem
if (mi.BackColor != Color.Empty)
td.BackColor = mi.BackColor;
if (mi.Font != null)
td.Font.CopyFrom(mi.Font);
if (mi.ForeColor != Color.Empty)
td.ForeColor = mi.ForeColor;
if (mi.Height != Unit.Empty)
td.Height = mi.Height;
if (mi.Width != Unit.Empty)
td.Width = mi.Width;
if (mi.CssClass != String.Empty)
td.CssClass = mi.CssClass;
else if (this.DefaultCssClass != String.Empty)
td.CssClass = this.DefaultCssClass;
if (mi.BorderColor != Color.Empty)
td.BorderColor = mi.BorderColor;
if (mi.BorderStyle != BorderStyle.NotSet)
td.BorderStyle = mi.BorderStyle;
if (mi.BorderWidth != Unit.Empty)
td.BorderWidth = mi.BorderWidth;
if (mi.HorizontalAlign != System.Web.UI.WebControls.HorizontalAlign.NotSet)
td.HorizontalAlign = mi.HorizontalAlign;
if (mi.VerticalAlign != System.Web.UI.WebControls.VerticalAlign.NotSet)
td.VerticalAlign = mi.VerticalAlign;
BuildOpacity(td);
if (mi.Text != string.Empty)
td.Text = mi.Text; // Text
else if (mi.Image != string.Empty) // Show Image
{
System.Web.UI.WebControls.Image cellimage = new System.Web.UI.WebControls.Image();
cellimage.ImageUrl = mi.Image;
cellimage.AlternateText = mi.ImageAltText;
td.Controls.Add(cellimage);
image = mi.Image;
mouseoverimage = mi.MouseOverImage;
mousedownimage = mi.MouseDownImage;
mouseupimage = mi.MouseUpImage;
}
td.Attributes.Add("id", mi.MenuID);
// Add in the left or right image as needed
if (mi.LeftImage != String.Empty)
{
System.Web.UI.WebControls.Image leftimage = new System.Web.UI.WebControls.Image();
System.Web.UI.WebControls.Literal leftliteral = new System.Web.UI.WebControls.Literal();
leftimage.ImageAlign = mi.LeftImageAlign;
if (mi.LeftImageRightPadding != Unit.Empty)
leftimage.Style.Add("margin-right",mi.LeftImageRightPadding.Value.ToString());
leftimage.ImageUrl = mi.LeftImage;
td.Controls.Add(leftimage);
leftliteral.Text = td.Text;
td.Controls.Add(leftliteral);
}
else if (mi.RightImage != String.Empty)
{
System.Web.UI.WebControls.Image rightimage = new System.Web.UI.WebControls.Image();
System.Web.UI.WebControls.Literal rightliteral = new System.Web.UI.WebControls.Literal();
rightliteral.Text = td.Text;
td.Controls.Add(rightliteral);
rightimage.ImageAlign = mi.RightImageAlign;
if (mi.RightImageLeftPadding != Unit.Empty)
rightimage.Style.Add("margin-left",mi.RightImageLeftPadding.Value.ToString());
rightimage.ImageUrl = mi.RightImage;
td.Controls.Add(rightimage);
}
// Prepare MouseOverCssClass
string mouseover = String.Empty;
if (this.DefaultMouseOverCssClass != string.Empty || mi.MouseOverCssClass != string.Empty || this.selectedMenuItemStyle.CssClass != String.Empty)
mouseover = "this.className='" + GetClass(this.DefaultMouseOverCssClass, mi.MouseOverCssClass, this.selectedMenuItemStyle.CssClass) + "';";
if (mi.Enabled) // if enabled...
{
// Generate OnClick handler
if (mi.JavascriptCommand != String.Empty) // javascript command
td.Attributes.Add("onclick", mi.JavascriptCommand + "skm_closeSubMenus(document.getElementById('" + this.ClientID + "'));");
else if (mi.Url != String.Empty)
{
if (mi.Target != String.Empty)
td.Attributes.Add("onclick", "javascript:skm_closeSubMenus(document.getElementById('" + this.ClientID + "'));window.open('" + GetURL(mi.ResolveURL, mi.Url) + "','" + mi.Target + "');");
else if (this.DefaultTarget != String.Empty)
td.Attributes.Add("onclick", "javascript:skm_closeSubMenus(document.getElementById('" + this.ClientID + "'));window.open('" + GetURL(mi.ResolveURL, mi.Url) + "','" + this.DefaultTarget + "');");
else
td.Attributes.Add("onclick", "javascript:skm_closeSubMenus(document.getElementById('" + this.ClientID + "'));location.href='" + GetURL(mi.ResolveURL, mi.Url) + "';");
}
else if (mi.CommandName != String.Empty) // Must be postback action
td.Attributes.Add("onclick", Page.GetPostBackClientHyperlink(this, mi.CommandName));
else if (this.ClickToOpen) // Open submenu on click
if (Layout == MenuLayout.Vertical)
td.Attributes.Add("onclick", "javascript:skm_mousedOverMenu('" + this.ClientID + "',this, document.getElementById('" + this.ClientID + "'), true, '" + mouseoverimage + "');" + GenerateShimCall("true", mi.MenuID + "-subMenu") + mouseover);
else
td.Attributes.Add("onclick", "javascript:skm_mousedOverMenu('" + this.ClientID + "',this, document.getElementById('" + this.ClientID + "'), false, '" + mouseoverimage + "');" + GenerateShimCall("true", mi.MenuID + "-subMenu") + mouseover);
}
if (mi.Enabled)
{
// Output Tooltip
if (mi.ToolTip != String.Empty)
td.ToolTip = mi.ToolTip;
// Output MouseDownCssClass or MouseDownImage
string mousedown = String.Empty;
if (this.DefaultMouseDownCssClass != string.Empty || mi.MouseDownCssClass != string.Empty)
mousedown = "this.className='" + GetClass(this.DefaultMouseDownCssClass, mi.MouseDownCssClass) + "';";
if (mousedownimage != String.Empty)
mousedown += "setimage(this, '" + mousedownimage + "');";
if (mousedown != string.Empty)
td.Attributes.Add("onmousedown", mousedown);
// Output MouseUpCssClass or MouseUpImage
string mouseup = String.Empty;
if (this.DefaultMouseUpCssClass != string.Empty || mi.MouseUpCssClass != string.Empty)
mouseup = "this.className='" + GetClass(this.DefaultMouseUpCssClass, mi.MouseUpCssClass) + "';";
if (mouseupimage != String.Empty)
mouseup += "setimage(this, '" + mouseupimage + "');";
if (mouseup != string.Empty)
td.Attributes.Add("onmouseup", mouseup);
if (this.ClickToOpen == false)
{
if (Layout == MenuLayout.Vertical)
td.Attributes.Add("onmouseover", "javascript:skm_mousedOverMenu('" + this.ClientID + "',this, document.getElementById('" + this.ClientID + "'), true, '" + mouseoverimage + "');" + GenerateShimCall("true", mi.MenuID + "-subMenu") + mouseover);
else
td.Attributes.Add("onmouseover", "javascript:skm_mousedOverMenu('" + this.ClientID + "',this, document.getElementById('" + this.ClientID + "'), false, '" + mouseoverimage + "');" + GenerateShimCall("true", mi.MenuID + "-subMenu") + mouseover);
}
else
td.Attributes.Add("onmouseover", "javascript:skm_mousedOverClickToOpen('" + this.ClientID + "', this, document.getElementById('" + this.ClientID + "'), '" + mouseoverimage + "');"+ mouseover);
td.Attributes.Add("onmouseout", "javascript:skm_mousedOutMenu('" + this.ClientID +"', this, '" + image + "');" + "this.className='" + GetClass(this.DefaultCssClass, mi.CssClass, this.unselectedMenuItemStyle.CssClass) + "';");
}
else // disabled...
{
td.Attributes.Add("onmouseover", "javascript:skm_mousedOverSpacer('" + this.ClientID + "', this, document.getElementById('" + this.ClientID + "'));");
td.Attributes.Add("onmouseout", "javascript:skm_mousedOutSpacer('" + this.ClientID + "', this);");
}
if (mi.Url != String.Empty || mi.CommandName != String.Empty)
if (this.Cursor != MouseCursor.Default)
{
if (this.Page.Request.Browser.Browser == "IE")
td.Style.Add("cursor","hand");
else
td.Style.Add("cursor","pointer");
}
tr.Cells.Add(td);
if (Layout == MenuLayout.Vertical)
menu.Rows.Add(tr);
// Add the subitems for this menu, if needed
if (mi.SubItems.Count > 0)
{
// Create an IFrame (IE5.5 or better) to windowed form elements that might
// interfere with display of the menu
if (this.Page.Request.Browser.Browser == "IE" && Convert.ToDouble(this.Page.Request.Browser.Version, enUSCulture) >= 5.5)
{
System.Web.UI.HtmlControls.HtmlGenericControl iframe = new System.Web.UI.HtmlControls.HtmlGenericControl();
iframe.TagName = "iframe";
iframe.Attributes.Add("id", "shim" + mi.MenuID + "-subMenu");
iframe.Attributes.Add("src", IFrameSrc);
iframe.Attributes.Add("scrolling", "no");
iframe.Attributes.Add("frameborder", "no");
iframe.Style.Add("position", "absolute");
iframe.Style.Add("top", "0px");
iframe.Style.Add("left", "0px");
iframe.Style.Add("display", "none");
BuildOpacity(iframe);
Controls.Add(iframe);
}
this.subItemsIds.Add(mi.MenuID + "-subMenu");
AddMenu(mi.MenuID + "-subMenu", mi.SubItems);
}
}
}
if (Layout == MenuLayout.Horizontal)
menu.Rows.Add(tr);
Controls.Add(menu);
}
public override void RenderBeginTag(HtmlTextWriter writer)
{
Table tbl = new Table();
tbl.ID = "tbl_" + this.ID;
tbl.MergeStyle(this.ControlStyle);
tbl.RenderBeginTag(writer);
}
