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//------------------------------------------------------------------------------
// <copyright file="MenuRendererClassic.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System.Drawing;
using System.Globalization;
using System.Text;
public partial class Menu {
/// <devdoc>The classic (pre-ASP.NET 4.0) Menu renderer</devdoc>
private class MenuRendererClassic : MenuRenderer {
private int _cssStyleIndex;
public MenuRendererClassic(Menu menu) : base(menu) { }
/// <devdoc>
/// Make sure we are set up to render
/// </devdoc>
internal void EnsureRenderSettings() {
if (Menu.Page == null) {
return;
}
// If we don't have access to the header, we can't add the necessary styles
if (Menu.Page.Header == null) {
if (Menu._staticHoverStyle != null) {
throw new InvalidOperationException(SR.GetString(SR.NeedHeader, "Menu.StaticHoverStyle"));
}
if (Menu._dynamicHoverStyle != null) {
throw new InvalidOperationException(SR.GetString(SR.NeedHeader, "Menu.DynamicHoverStyle"));
}
return;
}
Menu._isNotIE = (Menu.Page.Request.Browser.MSDomVersion.Major < 4);
if (Menu.Page.SupportsStyleSheets || (Menu.Page.ScriptManager != null && Menu.Page.ScriptManager.IsInAsyncPostBack)) {
// Register the styles. NB the order here is important: later wins over earlier
Menu._panelStyle = Menu.Panel.GetEmptyPopOutPanelStyle();
RegisterStyle(Menu._panelStyle);
RegisterStyle(Menu.RootMenuItemStyle);
RegisterStyle(Menu.ControlStyle);
// It's also vitally important to register hyperlinkstyles BEFORE
// their associated styles as we need to copy the data from this style
// and a registered style appears empty except for RegisteredClassName
if (Menu._staticItemStyle != null) {
Menu._staticItemStyle.HyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(Menu._staticItemStyle.HyperLinkStyle);
RegisterStyle(Menu._staticItemStyle);
}
if (Menu._staticMenuStyle != null) {
RegisterStyle(Menu._staticMenuStyle);
}
if (Menu._dynamicItemStyle != null) {
Menu._dynamicItemStyle.HyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(Menu._dynamicItemStyle.HyperLinkStyle);
RegisterStyle(Menu._dynamicItemStyle);
}
if (Menu._dynamicMenuStyle != null) {
RegisterStyle(Menu._dynamicMenuStyle);
}
foreach (MenuItemStyle style in Menu.LevelMenuItemStyles) {
style.HyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(style.HyperLinkStyle);
RegisterStyle(style);
}
foreach (SubMenuStyle style in Menu.LevelSubMenuStyles) {
RegisterStyle(style);
}
if (Menu._staticSelectedStyle != null) {
Menu._staticSelectedStyle.HyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(Menu._staticSelectedStyle.HyperLinkStyle);
RegisterStyle(Menu._staticSelectedStyle);
}
if (Menu._dynamicSelectedStyle != null) {
Menu._dynamicSelectedStyle.HyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(Menu._dynamicSelectedStyle.HyperLinkStyle);
RegisterStyle(Menu._dynamicSelectedStyle);
}
foreach (MenuItemStyle style in Menu.LevelSelectedStyles) {
style.HyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(style.HyperLinkStyle);
RegisterStyle(style);
}
if (Menu._staticHoverStyle != null) {
Menu._staticHoverHyperLinkStyle = new HyperLinkStyle(Menu._staticHoverStyle);
Menu._staticHoverHyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(Menu._staticHoverHyperLinkStyle);
RegisterStyle(Menu._staticHoverStyle);
}
if (Menu._dynamicHoverStyle != null) {
Menu._dynamicHoverHyperLinkStyle = new HyperLinkStyle(Menu._dynamicHoverStyle);
Menu._dynamicHoverHyperLinkStyle.DoNotRenderDefaults = true;
RegisterStyle(Menu._dynamicHoverHyperLinkStyle);
RegisterStyle(Menu._dynamicHoverStyle);
}
}
}
public override void PreRender(bool registerScript) {
EnsureRenderSettings();
if (Menu.Page != null && registerScript) {
// The menu script requires the general webforms script
Menu.Page.RegisterWebFormsScript();
// Register the external Menu javascript file.
Menu.Page.ClientScript.RegisterClientScriptResource(Menu, typeof(Menu), "Menu.js");
string clientDataObjectID = Menu.ClientDataObjectID;
//
StringBuilder createDataObjectScript = new StringBuilder("var ");
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(" = new Object();\r\n");
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".disappearAfter = ");
createDataObjectScript.Append(Menu.DisappearAfter);
createDataObjectScript.Append(";\r\n");
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".horizontalOffset = ");
createDataObjectScript.Append(Menu.DynamicHorizontalOffset);
createDataObjectScript.Append(";\r\n");
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".verticalOffset = ");
createDataObjectScript.Append(Menu.DynamicVerticalOffset);
createDataObjectScript.Append(";\r\n");
if (Menu._dynamicHoverStyle != null) {
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".hoverClass = '");
createDataObjectScript.Append(Menu._dynamicHoverStyle.RegisteredCssClass);
if (!String.IsNullOrEmpty(Menu._dynamicHoverStyle.CssClass)) {
if (!String.IsNullOrEmpty(Menu._dynamicHoverStyle.RegisteredCssClass)) {
createDataObjectScript.Append(' ');
}
createDataObjectScript.Append(Menu._dynamicHoverStyle.CssClass);
}
createDataObjectScript.Append("';\r\n");
if (Menu._dynamicHoverHyperLinkStyle != null) {
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".hoverHyperLinkClass = '");
createDataObjectScript.Append(Menu._dynamicHoverHyperLinkStyle.RegisteredCssClass);
if (!String.IsNullOrEmpty(Menu._dynamicHoverStyle.CssClass)) {
if (!String.IsNullOrEmpty(Menu._dynamicHoverHyperLinkStyle.RegisteredCssClass)) {
createDataObjectScript.Append(' ');
}
createDataObjectScript.Append(Menu._dynamicHoverStyle.CssClass);
}
createDataObjectScript.Append("';\r\n");
}
}
if (Menu._staticHoverStyle != null && Menu._staticHoverHyperLinkStyle != null) {
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".staticHoverClass = '");
createDataObjectScript.Append(Menu._staticHoverStyle.RegisteredCssClass);
if (!String.IsNullOrEmpty(Menu._staticHoverStyle.CssClass)) {
if (!String.IsNullOrEmpty(Menu._staticHoverStyle.RegisteredCssClass)) {
createDataObjectScript.Append(' ');
}
createDataObjectScript.Append(Menu._staticHoverStyle.CssClass);
}
createDataObjectScript.Append("';\r\n");
if (Menu._staticHoverHyperLinkStyle != null) {
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".staticHoverHyperLinkClass = '");
createDataObjectScript.Append(Menu._staticHoverHyperLinkStyle.RegisteredCssClass);
if (!String.IsNullOrEmpty(Menu._staticHoverStyle.CssClass)) {
if (!String.IsNullOrEmpty(Menu._staticHoverHyperLinkStyle.RegisteredCssClass)) {
createDataObjectScript.Append(' ');
}
createDataObjectScript.Append(Menu._staticHoverStyle.CssClass);
}
createDataObjectScript.Append("';\r\n");
}
}
if ((Menu.Page.RequestInternal != null) &&
(String.Equals(Menu.Page.Request.Url.Scheme, "https", StringComparison.OrdinalIgnoreCase))) {
createDataObjectScript.Append(clientDataObjectID);
createDataObjectScript.Append(".iframeUrl = '");
createDataObjectScript.Append(Util.QuoteJScriptString(
Menu.Page.ClientScript.GetWebResourceUrl(typeof(Menu), "SmartNav.htm"),
false));
createDataObjectScript.Append("';\r\n");
}
// Register a startup script that creates a tree data object
Menu.Page.ClientScript.RegisterStartupScript(Menu, GetType(),
Menu.ClientID + "_CreateDataObject",
createDataObjectScript.ToString(),
true);
}
}
private void RegisterStyle(Style style) {
if (Menu.Page != null && Menu.Page.SupportsStyleSheets) {
string name = Menu.ClientID + "_" + _cssStyleIndex++.ToString(NumberFormatInfo.InvariantInfo);
Menu.Page.Header.StyleSheet.CreateStyleRule(style, Menu, "." + name);
style.SetRegisteredCssClass(name);
}
}
public override void RenderBeginTag(HtmlTextWriter writer, bool staticOnly) {
ControlRenderingHelper.WriteSkipLinkStart(writer, Menu.RenderingCompatibility, Menu.DesignMode, Menu.SkipLinkText, Menu.SpacerImageUrl, Menu.ClientID);
// <table cellpadding="0" cellspacing="0" border="0" height="nodespacing">
// Determine root menu style
// First initialize the root menu style that depends on the control style before we change it. (VSWhidbey 354878)
Menu.EnsureRootMenuStyle();
if (Menu.Font != null) {
// Relative sizes should not be multiplied (VSWhidbey 457610)
Menu.Font.Reset();
}
Menu.ForeColor = Color.Empty;
SubMenuStyle rootMenuStyle = Menu.GetSubMenuStyle(Menu.RootItem);
if (Menu.Page != null && Menu.Page.SupportsStyleSheets) {
string styleClass = Menu.GetSubMenuCssClassName(Menu.RootItem);
if (styleClass.Length > 0) {
if (Menu.CssClass.Length == 0) {
Menu.CssClass = styleClass;
}
else {
Menu.CssClass += ' ' + styleClass;
}
}
}
else {
if (rootMenuStyle != null && !rootMenuStyle.IsEmpty) {
// Remove FontInfo and ForeColor from the submenustyle where they are not relevant
// but may get copied from by ControlStyle (VSWhidbey 438980)
rootMenuStyle.Font.Reset();
rootMenuStyle.ForeColor = Color.Empty;
// It's ok to change the control style at this point because viewstate has already been saved
Menu.ControlStyle.CopyFrom(rootMenuStyle);
}
}
Menu.AddAttributesToRender(writer);
writer.AddAttribute(HtmlTextWriterAttribute.Cellpadding, "0");
writer.AddAttribute(HtmlTextWriterAttribute.Cellspacing, "0");
writer.AddAttribute(HtmlTextWriterAttribute.Border, "0");
writer.RenderBeginTag(HtmlTextWriterTag.Table);
}
public override void RenderContents(HtmlTextWriter writer, bool staticOnly) {
if (Menu.Orientation == Orientation.Horizontal) {
// Render one global tr as items won't render any
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
}
bool enabled = Menu.IsEnabled;
if (Menu.StaticDisplayLevels > 1) {
if (Menu.Orientation == Orientation.Vertical) {
// Render the items themselves
for (int i = 0; i < Menu.Items.Count; i++) {
Menu.Items[i].RenderItem(writer, i, enabled, Menu.Orientation, staticOnly);
// And their static subitems
if (Menu.Items[i].ChildItems.Count != 0) {
writer.RenderBeginTag(HtmlTextWriterTag.Tr);
writer.RenderBeginTag(HtmlTextWriterTag.Td);
Menu.Items[i].Render(writer, enabled, staticOnly);
writer.RenderEndTag(); // td
writer.RenderEndTag(); // tr
}
}
}
else {
// Render the items themselves
for (int i = 0; i < Menu.Items.Count; i++) {
Menu.Items[i].RenderItem(writer, i, enabled, Menu.Orientation, staticOnly);
// And their static subitems
if (Menu.Items[i].ChildItems.Count != 0) {
writer.RenderBeginTag(HtmlTextWriterTag.Td);
Menu.Items[i].Render(writer, enabled, staticOnly);
writer.RenderEndTag(); // td
}
}
}
}
else {
// Render the items themselves
for (int i = 0; i < Menu.Items.Count; i++) {
Menu.Items[i].RenderItem(writer, i, enabled, Menu.Orientation, staticOnly);
}
}
if (Menu.Orientation == Orientation.Horizontal) {
// Render global /tr
writer.RenderEndTag();
}
// Reset all these cached values so things can pick up changes in the designer
if (Menu.DesignMode) {
Menu.ResetCachedStyles();
}
}
public override void RenderEndTag(HtmlTextWriter writer, bool staticOnly) {
writer.RenderEndTag(); // Table
// Render the submenus
if (Menu.StaticDisplayLevels <= 1 && !staticOnly) {
bool enabled = Menu.IsEnabled;
for (int i = 0; i < Menu.Items.Count; i++) {
Menu.Items[i].Render(writer, enabled, staticOnly);
}
}
ControlRenderingHelper.WriteSkipLinkEnd(writer, Menu.DesignMode, Menu.SkipLinkText, Menu.ClientID);
}
}
}
}
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