Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / xsp / System / Web / UI / CssStyleCollection.cs / 1 / CssStyleCollection.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI {
using System.IO;
using System.Collections;
using System.Collections.Specialized;
using System.Reflection;
using System.Web.UI;
using System.Text;
using System.Text.RegularExpressions;
using System.Security.Permissions;
///
///
/// The
///
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public sealed class CssStyleCollection {
private static readonly Regex _styleAttribRegex = new Regex(
"\\G(\\s*(;\\s*)*" + // match leading semicolons and spaces
"(?[^:]+?)" + // match stylename - chars up to the semicolon
"\\s*:\\s*" + // spaces, then the colon, then more spaces
"(?[^;]*)" + // now match styleval
")*\\s*(;\\s*)*$", // match a trailing semicolon and trailing spaces
RegexOptions.Singleline |
RegexOptions.Multiline |
RegexOptions.ExplicitCapture);
private StateBag _state;
private string _style;
private IDictionary _table;
private IDictionary _intTable;
internal CssStyleCollection() : this(null) {
}
/*
* Constructs an CssStyleCollection given a StateBag.
*/
internal CssStyleCollection(StateBag state) {
_state = state;
}
/*
* Automatically adds new keys.
*/
///
///
/// Gets or sets a specified CSS value.
///
///
public string this[string key] {
get {
if (_table == null)
ParseString();
string value = (string)_table[key];
if (value == null) {
HtmlTextWriterStyle style = CssTextWriter.GetStyleKey(key);
if (style != (HtmlTextWriterStyle)(-1)) {
value = this[style];
}
}
return value;
}
set {
Add(key, value);
}
}
///
/// Gets or sets the specified known CSS value.
///
public string this[HtmlTextWriterStyle key] {
get {
if (_intTable == null) {
return null;
}
return (string)_intTable[(int)key];
}
set {
Add(key, value);
}
}
/*
* Returns a collection of keys.
*/
///
///
/// Gets a collection of keys to all the styles in the
///
///
public ICollection Keys {
get {
if (_table == null)
ParseString();
if (_intTable != null) {
// combine the keys into a single table. Note that to preserve existing
// behavior, we convert enum values into strings to maintain a homogeneous collection.
string[] keys = new string[_table.Count + _intTable.Count];
int i = 0;
foreach (string s in _table.Keys) {
keys[i] = s;
i++;
}
foreach (HtmlTextWriterStyle style in _intTable.Keys) {
keys[i] = CssTextWriter.GetStyleName(style);
i++;
}
return keys;
}
return _table.Keys;
}
}
///
///
/// Gets the number of items in the
///
public int Count {
get {
if (_table == null)
ParseString();
return _table.Count + ((_intTable != null) ? _intTable.Count : 0);
}
}
public string Value {
get {
if (_state == null) {
if (_style == null) {
_style = BuildString();
}
return _style;
}
return(string)_state["style"];
}
set {
if (_state == null) {
_style = value;
}
else {
_state["style"] = value;
}
_table = null;
}
}
///
///
/// Adds a style to the CssStyleCollection.
///
///
public void Add(string key, string value) {
if (String.IsNullOrEmpty(key)) {
throw new ArgumentNullException("key");
}
if (_table == null)
ParseString();
_table[key] = value;
if (_intTable != null) {
// Remove from the other table to avoid duplicates.
HtmlTextWriterStyle style = CssTextWriter.GetStyleKey(key);
if (style != (HtmlTextWriterStyle)(-1)) {
_intTable.Remove(style);
}
}
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
public void Add(HtmlTextWriterStyle key, string value) {
if (_intTable == null) {
_intTable = new HybridDictionary();
}
_intTable[(int)key] = value;
string name = CssTextWriter.GetStyleName(key);
if (name.Length != 0) {
// Remove from the other table to avoid duplicates.
if (_table == null)
ParseString();
_table.Remove(name);
}
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
///
///
/// Removes a style from the
///
public void Remove(string key) {
if (_table == null)
ParseString();
if (_table[key] != null) {
_table.Remove(key);
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
}
public void Remove(HtmlTextWriterStyle key) {
if (_intTable == null) {
return;
}
_intTable.Remove((int)key);
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
///
///
/// Removes all styles from the
///
public void Clear() {
_table = null;
_intTable = null;
if (_state != null) {
_state.Remove("style");
}
_style = null;
}
/* BuildString
* Form the style string from data contained in the
* hash table
*/
private string BuildString() {
// if the tables are null, there is nothing to build
if (((_table == null) || (_table.Count == 0)) &&
((_intTable == null) || (_intTable.Count == 0))) {
return null;
}
StringWriter sw = new StringWriter();
CssTextWriter writer = new CssTextWriter(sw);
Render(writer);
return sw.ToString();
}
/* ParseString
* Parse the style string and fill the hash table with
* corresponding values.
*/
private void ParseString() {
// create a case-insensitive dictionary
_table = new HybridDictionary(true);
string s = (_state == null) ? _style : (string)_state["style"];
if (s != null) {
Match match;
if ((match = _styleAttribRegex.Match( s, 0)).Success) {
CaptureCollection stylenames = match.Groups["stylename"].Captures;
CaptureCollection stylevalues = match.Groups["styleval"].Captures;
for (int i = 0; i < stylenames.Count; i++) {
String styleName = stylenames[i].ToString();
String styleValue = stylevalues[i].ToString();
_table[styleName] = styleValue;
}
}
}
}
///
/// Render out the attribute collection into a CSS TextWriter. This
/// effectively renders the value of an inline style attribute.
///
internal void Render(CssTextWriter writer) {
if (_table != null && _table.Count > 0) {
foreach (DictionaryEntry entry in _table) {
writer.WriteAttribute((string)entry.Key, (string)entry.Value);
}
}
if (_intTable != null && _intTable.Count > 0) {
foreach (DictionaryEntry entry in _intTable) {
writer.WriteAttribute((HtmlTextWriterStyle)entry.Key, (string)entry.Value);
}
}
}
///
/// Render out the attribute collection into a CSS TextWriter. This
/// effectively renders the value of an inline style attribute.
/// Used by a Style object to render out its CSS attributes into an HtmlTextWriter.
///
internal void Render(HtmlTextWriter writer) {
if (_table != null && _table.Count > 0) {
foreach (DictionaryEntry entry in _table) {
writer.AddStyleAttribute((string)entry.Key, (string)entry.Value);
}
}
if (_intTable != null && _intTable.Count > 0) {
foreach (DictionaryEntry entry in _intTable) {
writer.AddStyleAttribute((HtmlTextWriterStyle)entry.Key, (string)entry.Value);
}
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI {
using System.IO;
using System.Collections;
using System.Collections.Specialized;
using System.Reflection;
using System.Web.UI;
using System.Text;
using System.Text.RegularExpressions;
using System.Security.Permissions;
///
///
/// The
///
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
public sealed class CssStyleCollection {
private static readonly Regex _styleAttribRegex = new Regex(
"\\G(\\s*(;\\s*)*" + // match leading semicolons and spaces
"(?[^:]+?)" + // match stylename - chars up to the semicolon
"\\s*:\\s*" + // spaces, then the colon, then more spaces
"(?[^;]*)" + // now match styleval
")*\\s*(;\\s*)*$", // match a trailing semicolon and trailing spaces
RegexOptions.Singleline |
RegexOptions.Multiline |
RegexOptions.ExplicitCapture);
private StateBag _state;
private string _style;
private IDictionary _table;
private IDictionary _intTable;
internal CssStyleCollection() : this(null) {
}
/*
* Constructs an CssStyleCollection given a StateBag.
*/
internal CssStyleCollection(StateBag state) {
_state = state;
}
/*
* Automatically adds new keys.
*/
///
///
/// Gets or sets a specified CSS value.
///
///
public string this[string key] {
get {
if (_table == null)
ParseString();
string value = (string)_table[key];
if (value == null) {
HtmlTextWriterStyle style = CssTextWriter.GetStyleKey(key);
if (style != (HtmlTextWriterStyle)(-1)) {
value = this[style];
}
}
return value;
}
set {
Add(key, value);
}
}
///
/// Gets or sets the specified known CSS value.
///
public string this[HtmlTextWriterStyle key] {
get {
if (_intTable == null) {
return null;
}
return (string)_intTable[(int)key];
}
set {
Add(key, value);
}
}
/*
* Returns a collection of keys.
*/
///
///
/// Gets a collection of keys to all the styles in the
///
///
public ICollection Keys {
get {
if (_table == null)
ParseString();
if (_intTable != null) {
// combine the keys into a single table. Note that to preserve existing
// behavior, we convert enum values into strings to maintain a homogeneous collection.
string[] keys = new string[_table.Count + _intTable.Count];
int i = 0;
foreach (string s in _table.Keys) {
keys[i] = s;
i++;
}
foreach (HtmlTextWriterStyle style in _intTable.Keys) {
keys[i] = CssTextWriter.GetStyleName(style);
i++;
}
return keys;
}
return _table.Keys;
}
}
///
///
/// Gets the number of items in the
///
public int Count {
get {
if (_table == null)
ParseString();
return _table.Count + ((_intTable != null) ? _intTable.Count : 0);
}
}
public string Value {
get {
if (_state == null) {
if (_style == null) {
_style = BuildString();
}
return _style;
}
return(string)_state["style"];
}
set {
if (_state == null) {
_style = value;
}
else {
_state["style"] = value;
}
_table = null;
}
}
///
///
/// Adds a style to the CssStyleCollection.
///
///
public void Add(string key, string value) {
if (String.IsNullOrEmpty(key)) {
throw new ArgumentNullException("key");
}
if (_table == null)
ParseString();
_table[key] = value;
if (_intTable != null) {
// Remove from the other table to avoid duplicates.
HtmlTextWriterStyle style = CssTextWriter.GetStyleKey(key);
if (style != (HtmlTextWriterStyle)(-1)) {
_intTable.Remove(style);
}
}
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
public void Add(HtmlTextWriterStyle key, string value) {
if (_intTable == null) {
_intTable = new HybridDictionary();
}
_intTable[(int)key] = value;
string name = CssTextWriter.GetStyleName(key);
if (name.Length != 0) {
// Remove from the other table to avoid duplicates.
if (_table == null)
ParseString();
_table.Remove(name);
}
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
///
///
/// Removes a style from the
///
public void Remove(string key) {
if (_table == null)
ParseString();
if (_table[key] != null) {
_table.Remove(key);
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
}
public void Remove(HtmlTextWriterStyle key) {
if (_intTable == null) {
return;
}
_intTable.Remove((int)key);
if (_state != null) {
// keep style attribute synchronized
_state["style"] = BuildString();
}
_style = null;
}
///
///
/// Removes all styles from the
///
public void Clear() {
_table = null;
_intTable = null;
if (_state != null) {
_state.Remove("style");
}
_style = null;
}
/* BuildString
* Form the style string from data contained in the
* hash table
*/
private string BuildString() {
// if the tables are null, there is nothing to build
if (((_table == null) || (_table.Count == 0)) &&
((_intTable == null) || (_intTable.Count == 0))) {
return null;
}
StringWriter sw = new StringWriter();
CssTextWriter writer = new CssTextWriter(sw);
Render(writer);
return sw.ToString();
}
/* ParseString
* Parse the style string and fill the hash table with
* corresponding values.
*/
private void ParseString() {
// create a case-insensitive dictionary
_table = new HybridDictionary(true);
string s = (_state == null) ? _style : (string)_state["style"];
if (s != null) {
Match match;
if ((match = _styleAttribRegex.Match( s, 0)).Success) {
CaptureCollection stylenames = match.Groups["stylename"].Captures;
CaptureCollection stylevalues = match.Groups["styleval"].Captures;
for (int i = 0; i < stylenames.Count; i++) {
String styleName = stylenames[i].ToString();
String styleValue = stylevalues[i].ToString();
_table[styleName] = styleValue;
}
}
}
}
///
/// Render out the attribute collection into a CSS TextWriter. This
/// effectively renders the value of an inline style attribute.
///
internal void Render(CssTextWriter writer) {
if (_table != null && _table.Count > 0) {
foreach (DictionaryEntry entry in _table) {
writer.WriteAttribute((string)entry.Key, (string)entry.Value);
}
}
if (_intTable != null && _intTable.Count > 0) {
foreach (DictionaryEntry entry in _intTable) {
writer.WriteAttribute((HtmlTextWriterStyle)entry.Key, (string)entry.Value);
}
}
}
///
/// Render out the attribute collection into a CSS TextWriter. This
/// effectively renders the value of an inline style attribute.
/// Used by a Style object to render out its CSS attributes into an HtmlTextWriter.
///
internal void Render(HtmlTextWriter writer) {
if (_table != null && _table.Count > 0) {
foreach (DictionaryEntry entry in _table) {
writer.AddStyleAttribute((string)entry.Key, (string)entry.Value);
}
}
if (_intTable != null && _intTable.Count > 0) {
foreach (DictionaryEntry entry in _intTable) {
writer.AddStyleAttribute((HtmlTextWriterStyle)entry.Key, (string)entry.Value);
}
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- AuthenticationSection.cs
- InteropEnvironment.cs
- UnsafeNativeMethods.cs
- CaseCqlBlock.cs
- FileRecordSequenceCompletedAsyncResult.cs
- CallbackValidatorAttribute.cs
- DescendentsWalkerBase.cs
- IItemProperties.cs
- WebPartDisplayModeCollection.cs
- XamlBrushSerializer.cs
- XmlDataImplementation.cs
- OciHandle.cs
- RequiredFieldValidator.cs
- SmtpSection.cs
- SqlBulkCopy.cs
- WebServiceHandler.cs
- StringValueConverter.cs
- DurationConverter.cs
- selecteditemcollection.cs
- xmlformatgeneratorstatics.cs
- XmlCharCheckingWriter.cs
- DateTimeFormatInfo.cs
- DataGridViewCellStyleEditor.cs
- DataGridViewCellMouseEventArgs.cs
- DropDownList.cs
- JoinGraph.cs
- CommandSet.cs
- DiscoveryClientReferences.cs
- CodeAccessPermission.cs
- ExpressionBinding.cs
- SrgsRule.cs
- StandardBindingElementCollection.cs
- LostFocusEventManager.cs
- SqlCommandBuilder.cs
- TdsParameterSetter.cs
- CollectionType.cs
- TextContainerChangeEventArgs.cs
- WizardStepBase.cs
- SessionStateModule.cs
- ReadContentAsBinaryHelper.cs
- CompilationUnit.cs
- CrossSiteScriptingValidation.cs
- XmlObjectSerializerReadContextComplexJson.cs
- DatasetMethodGenerator.cs
- FormsAuthenticationEventArgs.cs
- SmtpMail.cs
- RequestCachePolicyConverter.cs
- WmlSelectionListAdapter.cs
- MergeLocalizationDirectives.cs
- NativeMethods.cs
- OleDbRowUpdatingEvent.cs
- EdgeProfileValidation.cs
- SafeReadContext.cs
- MetadataArtifactLoaderComposite.cs
- XmlSerializerSection.cs
- ObjectStateManager.cs
- StorageMappingFragment.cs
- WinEventHandler.cs
- CharUnicodeInfo.cs
- OracleCommandBuilder.cs
- ProcessInputEventArgs.cs
- ListSortDescriptionCollection.cs
- SqlTriggerContext.cs
- CacheDependency.cs
- DataGridViewComboBoxCell.cs
- CodeAccessSecurityEngine.cs
- GridViewCancelEditEventArgs.cs
- SimpleLine.cs
- DoubleLink.cs
- Triplet.cs
- WmlValidatorAdapter.cs
- ToolStripItemTextRenderEventArgs.cs
- QilPatternFactory.cs
- DataBoundControl.cs
- NextPreviousPagerField.cs
- SystemWebSectionGroup.cs
- Listbox.cs
- MaterializeFromAtom.cs
- XmlConvert.cs
- OleDbErrorCollection.cs
- WebPartAddingEventArgs.cs
- Normalization.cs
- MaskedTextProvider.cs
- ZoomPercentageConverter.cs
- ParallelLoopState.cs
- PropertyTabAttribute.cs
- ContentValidator.cs
- ThemeInfoAttribute.cs
- PackageRelationshipCollection.cs
- List.cs
- IgnoreFlushAndCloseStream.cs
- SqlTopReducer.cs
- MasterPageParser.cs
- SignatureToken.cs
- QueryableDataSourceView.cs
- SqlConnectionString.cs
- XslTransformFileEditor.cs
- MetafileHeaderWmf.cs
- QilNode.cs
- ActivityDesigner.cs