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//------------------------------------------------------------------------------
// <copyright file="XhtmlStyleClass.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Web;
using System.Web.Caching;
using System.Web.Mobile;
using System.Web.UI.MobileControls;
using System.Web.UI.MobileControls.Adapters;
using System.IO;
using System.Text;
using System.Drawing;
using System.Collections;
using System.Diagnostics;
using System.Globalization;
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource.XhtmlAdapters
#else
namespace System.Web.UI.MobileControls.Adapters.XhtmlAdapters
#endif
{
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal class XhtmlStyleClass {
// The filter determines which style attributes are written. Any style attributes
// that can be ignored due to style inheritance have their bits set to zero.
private StyleFilter _filter;
private Style _controlStyle;
// Partial copy constructor
public XhtmlStyleClass (Style source, StyleFilter filter) {
_controlStyle = (Style) source.Clone();
// Filter has bits set to zero for properties which don't need
// to be written due to style inheritance from parent.
_filter = filter;
}
#if UNUSED_CODE
public XhtmlStyleClass (Style source, string className, StyleFilter filter) : this (source, filter){
StyleClassName = className;
}
#endif
// Review: Internal field.
internal String StyleClassName;
public StyleFilter Filter {
get {
return _filter;
}
}
protected virtual void SetFilter(StyleFilter arg) {
_filter = arg;
}
public override String ToString () {
StringBuilder builder = new StringBuilder ();
builder.Append ("." + StyleClassName + "{\r\n");
builder.Append (GetClassDefinition ());
builder.Append ("}\r\n");
return builder.ToString ();
}
public virtual String GetClassDefinition () {
StringBuilder classBuilder = new StringBuilder ();
BuildStyleClassFormatProperties (classBuilder);
BuildStyleClassLayoutProperties (classBuilder);
return classBuilder.ToString ();
}
internal virtual Style Style{
get {
return _controlStyle;
}
}
protected virtual void BuildStyleClassFormatProperties (StringBuilder classBuilder){
BuildStyleClassBold (classBuilder);
BuildStyleClassItalic (classBuilder);
BuildStyleClassFontName (classBuilder);
BuildStyleClassFontSize (classBuilder);
BuildStyleClassBackgroundColor (classBuilder);
BuildStyleClassForegroundColor (classBuilder);
}
protected virtual void BuildStyleClassLayoutProperties (StringBuilder classBuilder) {
BuildStyleClassNoWrap(classBuilder);
BuildStyleClassAlignment(classBuilder);
}
private void BuildStyleClassNoWrap (StringBuilder classBuilder) {
if ((_filter & StyleFilter.Wrapping) == 0){
return;
}
Wrapping styleWrapping = (Wrapping) _controlStyle [Style.WrappingKey, true /* inherit */];
if (styleWrapping == Wrapping.NoWrap) {
classBuilder.Append ("white-space: nowrap;\r\n");
}
}
private void BuildStyleClassAlignment (StringBuilder classBuilder) {
if ((_filter & StyleFilter.Alignment) == 0){
return;
}
Alignment styleAlignment = (Alignment) _controlStyle [Style.AlignmentKey, true /* inherit */];
if (styleAlignment != Alignment.NotSet) {
classBuilder.Append ("text-align: " + styleAlignment.ToString ().ToLower(CultureInfo.InvariantCulture) + ";\r\n");
}
}
private void BuildStyleClassBackgroundColor (StringBuilder classBuilder) {
if ((_filter & StyleFilter.BackgroundColor) == 0){
return;
}
Color styleColor = (Color) _controlStyle [Style.BackColorKey, true /* inherit */];
if (styleColor != Color.Empty) {
classBuilder.Append ("background-color: " + ColorTranslator.ToHtml (styleColor).ToLower(CultureInfo.InvariantCulture) + ";\r\n");
}
}
private void BuildStyleClassForegroundColor (StringBuilder classBuilder) {
if ((_filter & StyleFilter.ForegroundColor) == 0){
return;
}
Color styleColor = (Color) _controlStyle [Style.ForeColorKey, true /* inherit */];
if (styleColor != Color.Empty) {
classBuilder.Append ("color: " + ColorTranslator.ToHtml (styleColor).ToLower(CultureInfo.InvariantCulture) + ";\r\n");
}
}
private void BuildStyleClassItalic (StringBuilder classBuilder) {
if ((_filter & StyleFilter.Italic) == 0){
return;
}
if ((BooleanOption) _controlStyle [Style.ItalicKey, true /* inherit */] == BooleanOption.True) {
classBuilder.Append ("font-style: italic;\r\n");
}
else if ((BooleanOption) _controlStyle [Style.ItalicKey, true /* inherit */] == BooleanOption.False) {
classBuilder.Append ("font-style: normal;\r\n");
}
}
private void BuildStyleClassBold (StringBuilder classBuilder) {
if ((_filter & StyleFilter.Bold) == 0){
return;
}
if ((BooleanOption) _controlStyle[Style.BoldKey, true /* inherit */] == BooleanOption.True) {
classBuilder.Append ("font-weight: bold;\r\n");
}
else if ((BooleanOption) _controlStyle[Style.BoldKey, true /* inherit */] == BooleanOption.False) {
classBuilder.Append ("font-weight: normal;\r\n");
}
}
private void BuildStyleClassFontName (StringBuilder classBuilder) {
if ((_filter & StyleFilter.FontName) == 0){
return;
}
if ((String) _controlStyle[Style.FontNameKey, true /* inherit */] != (String) XhtmlConstants.DefaultStyle [Style.FontNameKey, false /* do not inherit */]) {
classBuilder.Append ("font-family: " + _controlStyle[Style.FontNameKey, true /* inherit */].ToString () + ";\r\n");
}
}
private void BuildStyleClassFontSize (StringBuilder classBuilder) {
if ((_filter & StyleFilter.FontSize) == 0){
return;
}
// Review: Consider replacing switch.
switch ((FontSize)_controlStyle[Style.FontSizeKey, true /* inherit */]) {
case FontSize.Large:
classBuilder.Append ("font-size: large;\r\n");
break;
case FontSize.Small:
classBuilder.Append ("font-size: small;\r\n");
break;
case FontSize.Normal:
classBuilder.Append ("font-size: medium;\r\n");
break;
default:
break;
}
}
// Given a Style, returns a filter with nonzero bits only at properties which have
// to be written.
public virtual StyleFilter GetFilter (Style style) {
// Filter out any child elt style properties which do not have to be written due to style inheritance.
StyleFilter inheritanceFilter = GetFilterInternal(style);
// Filter out any child elt style properties which are unnecessary because they have default values.
// Default values never cause a CSS style class property to be written.
StyleFilter defaultFilter = XhtmlConstants.DefaultStyleClass.GetFilterInternal(style);
return inheritanceFilter & defaultFilter;
}
// The XhtmlStyleClass for a child control can filter out unnecessary properties
// due to style inheritance. This returns an optimized StyleFilter for child
// controls with a given style.
protected virtual StyleFilter GetFilterInternal (Style style) {
StyleFilter returnValue = StyleFilter.None;
if ((BooleanOption)_controlStyle [Style.BoldKey, true] != (BooleanOption)style [Style.BoldKey, true]) {
returnValue |= StyleFilter.Bold;
}
if ((BooleanOption)_controlStyle [Style.ItalicKey, true] != (BooleanOption)style [Style.ItalicKey, true]) {
returnValue |= StyleFilter.Italic;
}
if ((String)_controlStyle [Style.FontNameKey, true] != (String)style [Style.FontNameKey, true]) {
returnValue |= StyleFilter.FontName;
}
if ((FontSize)_controlStyle [Style.FontSizeKey, true] != (FontSize)style [Style.FontSizeKey, true]) {
returnValue |= StyleFilter.FontSize;
}
if ((Color)_controlStyle [Style.BackColorKey, true] != (Color)style [Style.BackColorKey, true]) {// value comparison
returnValue |= StyleFilter.BackgroundColor;
}
if ((Color)_controlStyle [Style.ForeColorKey, true] != (Color)style [Style.ForeColorKey, true]) {// value comparison
returnValue |= StyleFilter.ForegroundColor;
}
if ((Alignment)_controlStyle [Style.AlignmentKey, true] != (Alignment)style [Style.AlignmentKey, true]) {
returnValue |= StyleFilter.Alignment;
}
if ((Wrapping)_controlStyle [Style.WrappingKey, true] != (Wrapping)style [Style.WrappingKey, true]) {
returnValue |= StyleFilter.Wrapping;
}
return returnValue;
}
}
// XhtmlStyleClass which only writes format properties.
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal class XhtmlFormatStyleClass : XhtmlStyleClass {
#if UNUSED_CODE
public XhtmlFormatStyleClass (Style source, string className, StyleFilter filter) : base (source, className, filter){}
#endif
public XhtmlFormatStyleClass (Style source, StyleFilter filter) : base (source, filter){
SetFilter (Filter & XhtmlConstants.Format);
}
public override String GetClassDefinition () {
StringBuilder classBuilder = new StringBuilder ();
BuildStyleClassFormatProperties (classBuilder);
return classBuilder.ToString ();
}
public override StyleFilter GetFilter (Style style) {
StyleFilter returnValue = GetFilterInternal(style);
// For a child control's style, there are no layout properties
// we can ignore due to style inheritance.
returnValue |= XhtmlConstants.Layout;
// However, we can still ignore properties which are the same as the default.
returnValue &= XhtmlConstants.DefaultStyleClass.GetFilter(style);
return returnValue;
}
}
// XhtmlStyleClass which only writes layout properties.
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal class XhtmlLayoutStyleClass : XhtmlStyleClass {
#if UNUSED_CODE
public XhtmlLayoutStyleClass (Style source, string className, StyleFilter filter) : base (source, className, filter){}
#endif
public XhtmlLayoutStyleClass (Style source, StyleFilter filter) : base (source, filter){
SetFilter (Filter & XhtmlConstants.Layout);
}
public override String GetClassDefinition () {
StringBuilder classBuilder = new StringBuilder ();
BuildStyleClassLayoutProperties (classBuilder);
return classBuilder.ToString ();
}
public override StyleFilter GetFilter (Style style) {
StyleFilter returnValue = GetFilterInternal(style);
// For a child control's style, there are no format properties
// we can ignore due to style inheritance.
returnValue |= XhtmlConstants.Format;
// However, we can still ignore properties which are the same as the default.
returnValue &= XhtmlConstants.DefaultStyleClass.GetFilter(style);
return returnValue;
}
}
}
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