Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / xsp / System / Web / Extensions / ui / ScriptRegistrationManager.cs / 2 / ScriptRegistrationManager.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI {
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;
using System.Web.UI;
using System.Web.Resources;
using System.Web.Script.Serialization;
internal sealed class ScriptRegistrationManager {
private static Regex ScriptTagRegex = new Regex(
@"\w[-\w:]*)" + // Attribute name
@"(" +
@"\s*=\s*""(?[^""]*)""|" + // ="bar" attribute value
@"\s*=\s*'(?[^']*)'" + // ='bar' attribute value
@")" +
@")*" +
@"\s*(?/)?>",
RegexOptions.Singleline | RegexOptions.Multiline | RegexOptions.IgnoreCase | RegexOptions.Compiled);
private ScriptManager _scriptManager;
private List _scriptDisposes;
private List _scriptArrays;
private List _clientScriptBlocks;
private List _startupScriptBlocks;
private List _hiddenFields;
private List _expandos;
private List _submitStatements;
public ScriptRegistrationManager(ScriptManager scriptManager) {
_scriptManager = scriptManager;
}
public List ScriptArrays {
get {
if (_scriptArrays == null) {
_scriptArrays = new List();
}
return _scriptArrays;
}
}
public List ScriptBlocks {
get {
if (_clientScriptBlocks == null) {
_clientScriptBlocks = new List();
}
return _clientScriptBlocks;
}
}
public List ScriptDisposes {
get {
if (_scriptDisposes == null) {
_scriptDisposes = new List();
}
return _scriptDisposes;
}
}
public List ScriptExpandos {
get {
if (_expandos == null) {
_expandos = new List();
}
return _expandos;
}
}
public List ScriptHiddenFields {
get {
if (_hiddenFields == null) {
_hiddenFields = new List();
}
return _hiddenFields;
}
}
public List ScriptStartupBlocks {
get {
if (_startupScriptBlocks == null) {
_startupScriptBlocks = new List();
}
return _startupScriptBlocks;
}
}
public List ScriptSubmitStatements {
get {
if (_submitStatements == null) {
_submitStatements = new List();
}
return _submitStatements;
}
}
private static void CheckScriptTagTweenSpace(RegisteredScript entry, string text, int start, int length) {
// Check the range between the matches to make sure there is no extraneous content
string tweenSpace = text.Substring(start, length);
if (tweenSpace.Trim().Length != 0) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ScriptRegistrationManager_InvalidChars, entry.Type.FullName, entry.Key, tweenSpace));
}
}
private bool IsControlRegistrationActive(
List updatingUpdatePanels,
Control child,
bool pageAlwaysActive) {
// Determines if a registered resource, like a client script block, should be included in the partial
// update response. It should be included if the owning control is a child of an updating update panel
// or if the owning control is the Page and this is a type of resource where Page is allowed as an owner.
// When page is the owner, it means always include the resource regardless of which update panels are
// updating. Expandos and dispose scripts do not support Page as the owner.
// is this a resource that allows Page as the owner, and is the owner the Page?
if (pageAlwaysActive) {
Page childAsPage = child as Page;
if (childAsPage == _scriptManager.Page) {
// owner is page so the registration is automatically active
return true;
}
}
// registration is active if owner is a child of any updating update panels
if (updatingUpdatePanels != null && updatingUpdatePanels.Count > 0) {
// navigate up the parent controls and see if any are an updating update panel.
while (child != null) {
if (child is UpdatePanel) {
// enumerate with for loop instead of foreach so we don't recreate an enumerator.
// enumerate instead of using Contains so we do not have to cast or use a comparer.
for (int i = 0; i < updatingUpdatePanels.Count; i++) {
if (child == updatingUpdatePanels[i]) {
return true;
}
}
}
child = child.Parent;
}
}
return false;
}
public static void RegisterArrayDeclaration(Control control, string arrayName, string arrayValue) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterArrayDeclaration(arrayName, arrayValue);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredArrayDeclaration entry = new RegisteredArrayDeclaration(control, arrayName, arrayValue);
sm.ScriptRegistration.ScriptArrays.Add(entry);
}
}
public static void RegisterClientScriptBlock(Control control, Type type, string key, string script, bool addScriptTags) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterClientScriptBlock(type, key, script, addScriptTags);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry =
new RegisteredScript(RegisteredScriptType.ClientScriptBlock,
control,
type,
key,
script,
addScriptTags);
sm.ScriptRegistration.ScriptBlocks.Add(entry);
}
}
public static void RegisterClientScriptInclude(Control control, Type type, string key, string url) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterClientScriptInclude(type, key, url);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry = new RegisteredScript(control, type, key, url);
sm.ScriptRegistration.ScriptBlocks.Add(entry);
}
}
public static void RegisterClientScriptResource(Control control, Type type, string resourceName) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm == null) {
control.Page.ClientScript.RegisterClientScriptResource(type, resourceName);
}
else {
string resourceUrl = sm.GetScriptResourceUrl(resourceName, type.Assembly);
control.Page.ClientScript.RegisterClientScriptInclude(type, resourceName, resourceUrl);
RegisteredScript entry = new RegisteredScript(control, type, resourceName, resourceUrl);
sm.ScriptRegistration.ScriptBlocks.Add(entry);
}
}
internal void RegisterDispose(Control control, string disposeScript) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
if (disposeScript == null) {
throw new ArgumentNullException("disposeScript");
}
// Locate the parent UpdatePanel of the control
Control parent = control.Parent;
UpdatePanel parentUpdatePanel = null;
while (parent != null) {
parentUpdatePanel = parent as UpdatePanel;
if (parentUpdatePanel != null) {
break;
}
parent = parent.Parent;
}
if (parentUpdatePanel != null) {
// During async posts we build up a list of ScriptDisposes. Later
// we go through the list and filter out ones that aren't inside
// UpdatePanels that are refreshing.
// DevDiv Bugs 128123: Build the list on non-async postbacks as well,
// so that GetRegisteredDisposeScripts returns them.
RegisteredDisposeScript entry = new RegisteredDisposeScript(control, disposeScript, parentUpdatePanel);
ScriptDisposes.Add(entry);
if (!_scriptManager.IsInAsyncPostBack) {
// During non-async requests we register script immediately to do the
// dispose. This is necessary because some controls will register as late
// as Render(), at which point it would be too late to build up a list
// for processing later.
JavaScriptSerializer serializer = new JavaScriptSerializer();
// 256 seems like a nice number so that we don't have to resize the StringBuilder except in very rare cases
StringBuilder sb = new StringBuilder(256);
sb.Append("Sys.WebForms.PageRequestManager.getInstance()._registerDisposeScript(");
serializer.Serialize(parentUpdatePanel.ClientID, sb);
sb.Append(", ");
serializer.Serialize(disposeScript, sb);
sb.AppendLine(");");
// DevDiv Bugs 128123: Register directly with ClientScriptManager so that a RegisteredScript
// entry is not created. Otherwise, calls to RegisterDispose would result in viewable
// RegisteredScript entries through GetRegisteredStartupScripts().
_scriptManager.IPage.ClientScript.RegisterStartupScript(typeof(ScriptRegistrationManager),
_scriptManager.CreateUniqueScriptKey(),
sb.ToString(),
true);
}
}
}
public static void RegisterExpandoAttribute(Control control, string controlId, string attributeName, string attributeValue, bool encode) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterExpandoAttribute(controlId, attributeName, attributeValue, encode);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredExpandoAttribute entry =
new RegisteredExpandoAttribute(control,
controlId,
attributeName,
attributeValue,
encode);
sm.ScriptRegistration.ScriptExpandos.Add(entry);
}
}
public static void RegisterHiddenField(Control control, string hiddenFieldName, string hiddenFieldInitialValue) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterHiddenField(hiddenFieldName, hiddenFieldInitialValue);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredHiddenField entry =
new RegisteredHiddenField(control,
hiddenFieldName,
hiddenFieldInitialValue);
sm.ScriptRegistration.ScriptHiddenFields.Add(entry);
}
}
public static void RegisterOnSubmitStatement(Control control, Type type, string key, string script) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterOnSubmitStatement(type, key, script);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry =
new RegisteredScript(RegisteredScriptType.OnSubmitStatement,
control,
type,
key,
script,
false);
sm.ScriptRegistration.ScriptSubmitStatements.Add(entry);
}
}
public static void RegisterStartupScript(Control control, Type type, string key, string script, bool addScriptTags) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterStartupScript(type, key, script, addScriptTags);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry =
new RegisteredScript(RegisteredScriptType.ClientStartupScript,
control,
type,
key,
script,
addScriptTags);
sm.ScriptRegistration.ScriptStartupBlocks.Add(entry);
}
}
public void RenderActiveArrayDeclarations(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
List entriesToRender = new List();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredArrayDeclaration entry in ScriptArrays) {
Control child = entry.Control;
// if the owning control is the same as the last one that we know was active,
// no need to check IsControlRegistrationActive
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
if (!entriesToRender.Contains(entry)) {
entriesToRender.Add(entry);
}
}
}
foreach (RegisteredArrayDeclaration activeRegistration in entriesToRender) {
PageRequestManager.EncodeString(writer,
PageRequestManager.ArrayDeclarationToken,
activeRegistration.Name,
activeRegistration.Value);
}
}
public void RenderActiveExpandos(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
if (updatePanels == null) {
return;
}
List entriesToRender = new List();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredExpandoAttribute entry in ScriptExpandos) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, false);
if (isActive) {
lastControl = child;
if (!entriesToRender.Contains(entry)) {
entriesToRender.Add(entry);
}
}
}
foreach (RegisteredExpandoAttribute activeRegistration in entriesToRender) {
string propertyReference = "document.getElementById('" +
activeRegistration.ControlId + "')['" + activeRegistration.Name + "']";
string value;
if (activeRegistration.Encode) {
value = "\"" + JavaScriptString.QuoteString(activeRegistration.Value) + "\"";
}
else if (activeRegistration.Value != null) {
value = "\"" + activeRegistration.Value + "\"";
}
else {
value = "null";
}
PageRequestManager.EncodeString(writer, PageRequestManager.ExpandoToken, propertyReference, value);
}
}
public void RenderActiveHiddenFields(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
List entriesToRender = new List();
ListDictionary uniqueEntries = new ListDictionary(StringComparer.Ordinal);
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredHiddenField entry in ScriptHiddenFields) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
if (!uniqueEntries.Contains(entry.Name)) {
entriesToRender.Add(entry);
uniqueEntries.Add(entry.Name, entry);
}
}
}
foreach (RegisteredHiddenField activeRegistration in entriesToRender) {
PageRequestManager.EncodeString(writer,
PageRequestManager.HiddenFieldToken,
activeRegistration.Name,
activeRegistration.InitialValue);
}
}
private void RenderActiveScriptBlocks(List updatePanels,
HtmlTextWriter writer,
string token,
List scriptRegistrations) {
List entriesToRender = new List();
// no comparer needed because it will contain ScriptKeys which implement Equals
ListDictionary uniqueEntries = new ListDictionary();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredScript entry in scriptRegistrations) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
ScriptKey scriptKey = new ScriptKey(entry.Type, entry.Key);
if (!uniqueEntries.Contains(scriptKey)) {
entriesToRender.Add(entry);
uniqueEntries.Add(scriptKey, entry);
}
}
}
foreach (RegisteredScript activeRegistration in entriesToRender) {
if (String.IsNullOrEmpty(activeRegistration.Url)) {
if (activeRegistration.AddScriptTags) {
PageRequestManager.EncodeString(writer,
token,
"ScriptContentNoTags",
activeRegistration.Script);
}
else {
WriteScriptWithTags(writer, token, activeRegistration);
}
}
else {
PageRequestManager.EncodeString(writer,
token,
"ScriptPath",
activeRegistration.Url);
}
}
}
public void RenderActiveScriptDisposes(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
if (updatePanels == null) {
return;
}
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
foreach (RegisteredDisposeScript entry in ScriptDisposes) {
if (IsControlRegistrationActive(updatePanels, entry.ParentUpdatePanel, false)) {
PageRequestManager.EncodeString(
writer,
PageRequestManager.ScriptDisposeToken,
entry.ParentUpdatePanel.ClientID,
entry.Script);
}
}
}
public void RenderActiveScripts(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
// Client script blocks and includes go first
RenderActiveScriptBlocks(updatePanels,
writer,
PageRequestManager.ScriptBlockToken,
ScriptBlocks);
// Startup scripts at end
RenderActiveScriptBlocks(updatePanels,
writer,
PageRequestManager.ScriptStartupBlockToken,
ScriptStartupBlocks);
}
public void RenderActiveSubmitStatements(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
List entriesToRender = new List();
// no comparer needed because it will contain ScriptKeys which implement Equals
ListDictionary uniqueEntries = new ListDictionary();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredScript entry in ScriptSubmitStatements) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
ScriptKey scriptKey = new ScriptKey(entry.Type, entry.Key);
if (!uniqueEntries.Contains(scriptKey)) {
entriesToRender.Add(entry);
uniqueEntries.Add(scriptKey, entry);
}
}
}
foreach (RegisteredScript activeRegistration in entriesToRender) {
PageRequestManager.EncodeString(writer, PageRequestManager.OnSubmitToken, null, activeRegistration.Script);
}
}
private static void WriteScriptWithTags(HtmlTextWriter writer,
string token,
RegisteredScript activeRegistration) {
// If the content already has script tags, we need to parse out the contents
// so that the client doesn't have to. The contents may include more than one
// script tag, but no other content (such as arbitrary HTML).
string scriptContent = activeRegistration.Script;
int lastIndex = 0;
for (Match match = ScriptTagRegex.Match(scriptContent, lastIndex); match.Success; match = ScriptTagRegex.Match(scriptContent, lastIndex)) {
CheckScriptTagTweenSpace(activeRegistration, scriptContent, lastIndex, match.Index - lastIndex);
OrderedDictionary attrs = new OrderedDictionary();
if (match.Groups["empty"].Captures.Count > 0) {
// Self-closing tag
// No need to do anything since attributes are processed later
lastIndex = match.Index + match.Length;
}
else {
// Open tag with explicit close tag
// Need to find close tag so that we can locate the inner contents
int indexOfEndOfScriptBeginTag = match.Index + match.Length;
int indexOfScriptEndTag = scriptContent.IndexOf("", indexOfEndOfScriptBeginTag, StringComparison.OrdinalIgnoreCase);
if (indexOfScriptEndTag == -1) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ScriptRegistrationManager_NoCloseTag, activeRegistration.Type.FullName, activeRegistration.Key));
}
string scriptBlockContents = scriptContent.Substring(indexOfEndOfScriptBeginTag, (indexOfScriptEndTag - indexOfEndOfScriptBeginTag));
// Turn the text content into a text attribute
attrs.Add("text", scriptBlockContents);
lastIndex = indexOfScriptEndTag + 9;
}
// Process all the explicit attributes on the script tag
CaptureCollection attrnames = match.Groups["attrname"].Captures;
CaptureCollection attrvalues = match.Groups["attrval"].Captures;
for (int i = 0; i < attrnames.Count; i++) {
string attribName = attrnames[i].ToString();
string attribValue = attrvalues[i].ToString();
// DevDev Bugs 123213: script elements registered with RegisterStartupScript are normally rendered
// into the html of the page. Any html encoded values in the attributes are interpreted by the
// browser, so the actual data is not html encoded. We must HtmlDecode any attribute values we find
// here to remain consistent during async posts, since the data will be dynamically injected into
// the dom, bypassing the browser's natural html decoding.
attribValue = HttpUtility.HtmlDecode(attribValue);
attrs.Add(attribName, attribValue);
}
// Serialize the attributes to JSON and write them out
JavaScriptSerializer serializer = new JavaScriptSerializer();
string attrText = serializer.Serialize(attrs);
PageRequestManager.EncodeString(writer, token, "ScriptContentWithTags", attrText);
}
CheckScriptTagTweenSpace(activeRegistration, scriptContent, lastIndex, scriptContent.Length - lastIndex);
if (lastIndex == 0) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ScriptRegistrationManager_NoTags, activeRegistration.Type.FullName, activeRegistration.Key));
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
namespace System.Web.UI {
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;
using System.Web.UI;
using System.Web.Resources;
using System.Web.Script.Serialization;
internal sealed class ScriptRegistrationManager {
private static Regex ScriptTagRegex = new Regex(
@"\w[-\w:]*)" + // Attribute name
@"(" +
@"\s*=\s*""(?[^""]*)""|" + // ="bar" attribute value
@"\s*=\s*'(?[^']*)'" + // ='bar' attribute value
@")" +
@")*" +
@"\s*(?/)?>",
RegexOptions.Singleline | RegexOptions.Multiline | RegexOptions.IgnoreCase | RegexOptions.Compiled);
private ScriptManager _scriptManager;
private List _scriptDisposes;
private List _scriptArrays;
private List _clientScriptBlocks;
private List _startupScriptBlocks;
private List _hiddenFields;
private List _expandos;
private List _submitStatements;
public ScriptRegistrationManager(ScriptManager scriptManager) {
_scriptManager = scriptManager;
}
public List ScriptArrays {
get {
if (_scriptArrays == null) {
_scriptArrays = new List();
}
return _scriptArrays;
}
}
public List ScriptBlocks {
get {
if (_clientScriptBlocks == null) {
_clientScriptBlocks = new List();
}
return _clientScriptBlocks;
}
}
public List ScriptDisposes {
get {
if (_scriptDisposes == null) {
_scriptDisposes = new List();
}
return _scriptDisposes;
}
}
public List ScriptExpandos {
get {
if (_expandos == null) {
_expandos = new List();
}
return _expandos;
}
}
public List ScriptHiddenFields {
get {
if (_hiddenFields == null) {
_hiddenFields = new List();
}
return _hiddenFields;
}
}
public List ScriptStartupBlocks {
get {
if (_startupScriptBlocks == null) {
_startupScriptBlocks = new List();
}
return _startupScriptBlocks;
}
}
public List ScriptSubmitStatements {
get {
if (_submitStatements == null) {
_submitStatements = new List();
}
return _submitStatements;
}
}
private static void CheckScriptTagTweenSpace(RegisteredScript entry, string text, int start, int length) {
// Check the range between the matches to make sure there is no extraneous content
string tweenSpace = text.Substring(start, length);
if (tweenSpace.Trim().Length != 0) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ScriptRegistrationManager_InvalidChars, entry.Type.FullName, entry.Key, tweenSpace));
}
}
private bool IsControlRegistrationActive(
List updatingUpdatePanels,
Control child,
bool pageAlwaysActive) {
// Determines if a registered resource, like a client script block, should be included in the partial
// update response. It should be included if the owning control is a child of an updating update panel
// or if the owning control is the Page and this is a type of resource where Page is allowed as an owner.
// When page is the owner, it means always include the resource regardless of which update panels are
// updating. Expandos and dispose scripts do not support Page as the owner.
// is this a resource that allows Page as the owner, and is the owner the Page?
if (pageAlwaysActive) {
Page childAsPage = child as Page;
if (childAsPage == _scriptManager.Page) {
// owner is page so the registration is automatically active
return true;
}
}
// registration is active if owner is a child of any updating update panels
if (updatingUpdatePanels != null && updatingUpdatePanels.Count > 0) {
// navigate up the parent controls and see if any are an updating update panel.
while (child != null) {
if (child is UpdatePanel) {
// enumerate with for loop instead of foreach so we don't recreate an enumerator.
// enumerate instead of using Contains so we do not have to cast or use a comparer.
for (int i = 0; i < updatingUpdatePanels.Count; i++) {
if (child == updatingUpdatePanels[i]) {
return true;
}
}
}
child = child.Parent;
}
}
return false;
}
public static void RegisterArrayDeclaration(Control control, string arrayName, string arrayValue) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterArrayDeclaration(arrayName, arrayValue);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredArrayDeclaration entry = new RegisteredArrayDeclaration(control, arrayName, arrayValue);
sm.ScriptRegistration.ScriptArrays.Add(entry);
}
}
public static void RegisterClientScriptBlock(Control control, Type type, string key, string script, bool addScriptTags) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterClientScriptBlock(type, key, script, addScriptTags);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry =
new RegisteredScript(RegisteredScriptType.ClientScriptBlock,
control,
type,
key,
script,
addScriptTags);
sm.ScriptRegistration.ScriptBlocks.Add(entry);
}
}
public static void RegisterClientScriptInclude(Control control, Type type, string key, string url) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterClientScriptInclude(type, key, url);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry = new RegisteredScript(control, type, key, url);
sm.ScriptRegistration.ScriptBlocks.Add(entry);
}
}
public static void RegisterClientScriptResource(Control control, Type type, string resourceName) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm == null) {
control.Page.ClientScript.RegisterClientScriptResource(type, resourceName);
}
else {
string resourceUrl = sm.GetScriptResourceUrl(resourceName, type.Assembly);
control.Page.ClientScript.RegisterClientScriptInclude(type, resourceName, resourceUrl);
RegisteredScript entry = new RegisteredScript(control, type, resourceName, resourceUrl);
sm.ScriptRegistration.ScriptBlocks.Add(entry);
}
}
internal void RegisterDispose(Control control, string disposeScript) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
if (disposeScript == null) {
throw new ArgumentNullException("disposeScript");
}
// Locate the parent UpdatePanel of the control
Control parent = control.Parent;
UpdatePanel parentUpdatePanel = null;
while (parent != null) {
parentUpdatePanel = parent as UpdatePanel;
if (parentUpdatePanel != null) {
break;
}
parent = parent.Parent;
}
if (parentUpdatePanel != null) {
// During async posts we build up a list of ScriptDisposes. Later
// we go through the list and filter out ones that aren't inside
// UpdatePanels that are refreshing.
// DevDiv Bugs 128123: Build the list on non-async postbacks as well,
// so that GetRegisteredDisposeScripts returns them.
RegisteredDisposeScript entry = new RegisteredDisposeScript(control, disposeScript, parentUpdatePanel);
ScriptDisposes.Add(entry);
if (!_scriptManager.IsInAsyncPostBack) {
// During non-async requests we register script immediately to do the
// dispose. This is necessary because some controls will register as late
// as Render(), at which point it would be too late to build up a list
// for processing later.
JavaScriptSerializer serializer = new JavaScriptSerializer();
// 256 seems like a nice number so that we don't have to resize the StringBuilder except in very rare cases
StringBuilder sb = new StringBuilder(256);
sb.Append("Sys.WebForms.PageRequestManager.getInstance()._registerDisposeScript(");
serializer.Serialize(parentUpdatePanel.ClientID, sb);
sb.Append(", ");
serializer.Serialize(disposeScript, sb);
sb.AppendLine(");");
// DevDiv Bugs 128123: Register directly with ClientScriptManager so that a RegisteredScript
// entry is not created. Otherwise, calls to RegisterDispose would result in viewable
// RegisteredScript entries through GetRegisteredStartupScripts().
_scriptManager.IPage.ClientScript.RegisterStartupScript(typeof(ScriptRegistrationManager),
_scriptManager.CreateUniqueScriptKey(),
sb.ToString(),
true);
}
}
}
public static void RegisterExpandoAttribute(Control control, string controlId, string attributeName, string attributeValue, bool encode) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterExpandoAttribute(controlId, attributeName, attributeValue, encode);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredExpandoAttribute entry =
new RegisteredExpandoAttribute(control,
controlId,
attributeName,
attributeValue,
encode);
sm.ScriptRegistration.ScriptExpandos.Add(entry);
}
}
public static void RegisterHiddenField(Control control, string hiddenFieldName, string hiddenFieldInitialValue) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterHiddenField(hiddenFieldName, hiddenFieldInitialValue);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredHiddenField entry =
new RegisteredHiddenField(control,
hiddenFieldName,
hiddenFieldInitialValue);
sm.ScriptRegistration.ScriptHiddenFields.Add(entry);
}
}
public static void RegisterOnSubmitStatement(Control control, Type type, string key, string script) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterOnSubmitStatement(type, key, script);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry =
new RegisteredScript(RegisteredScriptType.OnSubmitStatement,
control,
type,
key,
script,
false);
sm.ScriptRegistration.ScriptSubmitStatements.Add(entry);
}
}
public static void RegisterStartupScript(Control control, Type type, string key, string script, bool addScriptTags) {
if (control == null) {
throw new ArgumentNullException("control");
}
if (control.Page == null) {
throw new ArgumentException(AtlasWeb.ScriptRegistrationManager_ControlNotOnPage, "control");
}
control.Page.ClientScript.RegisterStartupScript(type, key, script, addScriptTags);
ScriptManager sm = ScriptManager.GetCurrent(control.Page);
if (sm != null) {
RegisteredScript entry =
new RegisteredScript(RegisteredScriptType.ClientStartupScript,
control,
type,
key,
script,
addScriptTags);
sm.ScriptRegistration.ScriptStartupBlocks.Add(entry);
}
}
public void RenderActiveArrayDeclarations(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
List entriesToRender = new List();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredArrayDeclaration entry in ScriptArrays) {
Control child = entry.Control;
// if the owning control is the same as the last one that we know was active,
// no need to check IsControlRegistrationActive
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
if (!entriesToRender.Contains(entry)) {
entriesToRender.Add(entry);
}
}
}
foreach (RegisteredArrayDeclaration activeRegistration in entriesToRender) {
PageRequestManager.EncodeString(writer,
PageRequestManager.ArrayDeclarationToken,
activeRegistration.Name,
activeRegistration.Value);
}
}
public void RenderActiveExpandos(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
if (updatePanels == null) {
return;
}
List entriesToRender = new List();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredExpandoAttribute entry in ScriptExpandos) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, false);
if (isActive) {
lastControl = child;
if (!entriesToRender.Contains(entry)) {
entriesToRender.Add(entry);
}
}
}
foreach (RegisteredExpandoAttribute activeRegistration in entriesToRender) {
string propertyReference = "document.getElementById('" +
activeRegistration.ControlId + "')['" + activeRegistration.Name + "']";
string value;
if (activeRegistration.Encode) {
value = "\"" + JavaScriptString.QuoteString(activeRegistration.Value) + "\"";
}
else if (activeRegistration.Value != null) {
value = "\"" + activeRegistration.Value + "\"";
}
else {
value = "null";
}
PageRequestManager.EncodeString(writer, PageRequestManager.ExpandoToken, propertyReference, value);
}
}
public void RenderActiveHiddenFields(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
List entriesToRender = new List();
ListDictionary uniqueEntries = new ListDictionary(StringComparer.Ordinal);
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredHiddenField entry in ScriptHiddenFields) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
if (!uniqueEntries.Contains(entry.Name)) {
entriesToRender.Add(entry);
uniqueEntries.Add(entry.Name, entry);
}
}
}
foreach (RegisteredHiddenField activeRegistration in entriesToRender) {
PageRequestManager.EncodeString(writer,
PageRequestManager.HiddenFieldToken,
activeRegistration.Name,
activeRegistration.InitialValue);
}
}
private void RenderActiveScriptBlocks(List updatePanels,
HtmlTextWriter writer,
string token,
List scriptRegistrations) {
List entriesToRender = new List();
// no comparer needed because it will contain ScriptKeys which implement Equals
ListDictionary uniqueEntries = new ListDictionary();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredScript entry in scriptRegistrations) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
ScriptKey scriptKey = new ScriptKey(entry.Type, entry.Key);
if (!uniqueEntries.Contains(scriptKey)) {
entriesToRender.Add(entry);
uniqueEntries.Add(scriptKey, entry);
}
}
}
foreach (RegisteredScript activeRegistration in entriesToRender) {
if (String.IsNullOrEmpty(activeRegistration.Url)) {
if (activeRegistration.AddScriptTags) {
PageRequestManager.EncodeString(writer,
token,
"ScriptContentNoTags",
activeRegistration.Script);
}
else {
WriteScriptWithTags(writer, token, activeRegistration);
}
}
else {
PageRequestManager.EncodeString(writer,
token,
"ScriptPath",
activeRegistration.Url);
}
}
}
public void RenderActiveScriptDisposes(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
if (updatePanels == null) {
return;
}
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
foreach (RegisteredDisposeScript entry in ScriptDisposes) {
if (IsControlRegistrationActive(updatePanels, entry.ParentUpdatePanel, false)) {
PageRequestManager.EncodeString(
writer,
PageRequestManager.ScriptDisposeToken,
entry.ParentUpdatePanel.ClientID,
entry.Script);
}
}
}
public void RenderActiveScripts(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
// Client script blocks and includes go first
RenderActiveScriptBlocks(updatePanels,
writer,
PageRequestManager.ScriptBlockToken,
ScriptBlocks);
// Startup scripts at end
RenderActiveScriptBlocks(updatePanels,
writer,
PageRequestManager.ScriptStartupBlockToken,
ScriptStartupBlocks);
}
public void RenderActiveSubmitStatements(List updatePanels, HtmlTextWriter writer) {
Debug.Assert(writer != null, "Should always have a writer");
List entriesToRender = new List();
// no comparer needed because it will contain ScriptKeys which implement Equals
ListDictionary uniqueEntries = new ListDictionary();
// For each entry registered in the page, check and see which ones
// came from controls within UpdatePanels that are going to be updated.
Control lastControl = null;
foreach (RegisteredScript entry in ScriptSubmitStatements) {
Control child = entry.Control;
bool isActive = ((lastControl != null) && (child == lastControl)) ||
IsControlRegistrationActive(updatePanels, child, true);
if (isActive) {
lastControl = child;
ScriptKey scriptKey = new ScriptKey(entry.Type, entry.Key);
if (!uniqueEntries.Contains(scriptKey)) {
entriesToRender.Add(entry);
uniqueEntries.Add(scriptKey, entry);
}
}
}
foreach (RegisteredScript activeRegistration in entriesToRender) {
PageRequestManager.EncodeString(writer, PageRequestManager.OnSubmitToken, null, activeRegistration.Script);
}
}
private static void WriteScriptWithTags(HtmlTextWriter writer,
string token,
RegisteredScript activeRegistration) {
// If the content already has script tags, we need to parse out the contents
// so that the client doesn't have to. The contents may include more than one
// script tag, but no other content (such as arbitrary HTML).
string scriptContent = activeRegistration.Script;
int lastIndex = 0;
for (Match match = ScriptTagRegex.Match(scriptContent, lastIndex); match.Success; match = ScriptTagRegex.Match(scriptContent, lastIndex)) {
CheckScriptTagTweenSpace(activeRegistration, scriptContent, lastIndex, match.Index - lastIndex);
OrderedDictionary attrs = new OrderedDictionary();
if (match.Groups["empty"].Captures.Count > 0) {
// Self-closing tag
// No need to do anything since attributes are processed later
lastIndex = match.Index + match.Length;
}
else {
// Open tag with explicit close tag
// Need to find close tag so that we can locate the inner contents
int indexOfEndOfScriptBeginTag = match.Index + match.Length;
int indexOfScriptEndTag = scriptContent.IndexOf("", indexOfEndOfScriptBeginTag, StringComparison.OrdinalIgnoreCase);
if (indexOfScriptEndTag == -1) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ScriptRegistrationManager_NoCloseTag, activeRegistration.Type.FullName, activeRegistration.Key));
}
string scriptBlockContents = scriptContent.Substring(indexOfEndOfScriptBeginTag, (indexOfScriptEndTag - indexOfEndOfScriptBeginTag));
// Turn the text content into a text attribute
attrs.Add("text", scriptBlockContents);
lastIndex = indexOfScriptEndTag + 9;
}
// Process all the explicit attributes on the script tag
CaptureCollection attrnames = match.Groups["attrname"].Captures;
CaptureCollection attrvalues = match.Groups["attrval"].Captures;
for (int i = 0; i < attrnames.Count; i++) {
string attribName = attrnames[i].ToString();
string attribValue = attrvalues[i].ToString();
// DevDev Bugs 123213: script elements registered with RegisterStartupScript are normally rendered
// into the html of the page. Any html encoded values in the attributes are interpreted by the
// browser, so the actual data is not html encoded. We must HtmlDecode any attribute values we find
// here to remain consistent during async posts, since the data will be dynamically injected into
// the dom, bypassing the browser's natural html decoding.
attribValue = HttpUtility.HtmlDecode(attribValue);
attrs.Add(attribName, attribValue);
}
// Serialize the attributes to JSON and write them out
JavaScriptSerializer serializer = new JavaScriptSerializer();
string attrText = serializer.Serialize(attrs);
PageRequestManager.EncodeString(writer, token, "ScriptContentWithTags", attrText);
}
CheckScriptTagTweenSpace(activeRegistration, scriptContent, lastIndex, scriptContent.Length - lastIndex);
if (lastIndex == 0) {
throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ScriptRegistrationManager_NoTags, activeRegistration.Type.FullName, activeRegistration.Key));
}
}
}
}
// 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
- PathData.cs
- AttachedPropertyBrowsableForChildrenAttribute.cs
- BindingCollectionElement.cs
- StateBag.cs
- EncoderParameter.cs
- dataobject.cs
- TimeSpanSecondsConverter.cs
- SynchronizationScope.cs
- EncoderBestFitFallback.cs
- ComponentDispatcher.cs
- DateTimePicker.cs
- SizeConverter.cs
- listitem.cs
- WebEventCodes.cs
- DurableMessageDispatchInspector.cs
- InputScopeAttribute.cs
- View.cs
- OrderingExpression.cs
- TypedRowHandler.cs
- SyntaxCheck.cs
- NamespaceEmitter.cs
- CookieProtection.cs
- Stack.cs
- StsCommunicationException.cs
- RSAOAEPKeyExchangeDeformatter.cs
- AsymmetricKeyExchangeFormatter.cs
- DbDataAdapter.cs
- XmlDataSourceNodeDescriptor.cs
- DrawingVisual.cs
- CommonBehaviorsSection.cs
- ArraySet.cs
- WithStatement.cs
- MessageUtil.cs
- SiteOfOriginPart.cs
- AuthenticationException.cs
- SoapServerMessage.cs
- BinaryUtilClasses.cs
- BitmapEffectState.cs
- MetadataHelper.cs
- _NegotiateClient.cs
- TextTreeObjectNode.cs
- TypeDelegator.cs
- DependencyProperty.cs
- AsyncCompletedEventArgs.cs
- DependencySource.cs
- WindowsListViewScroll.cs
- RuleDefinitions.cs
- UnsafeNativeMethods.cs
- DynamicDocumentPaginator.cs
- TypeLoadException.cs
- DocumentXPathNavigator.cs
- RegistryConfigurationProvider.cs
- Style.cs
- ViewGenResults.cs
- LifetimeServices.cs
- GradientPanel.cs
- SqlDependencyListener.cs
- AsnEncodedData.cs
- Schema.cs
- CqlGenerator.cs
- NullableIntAverageAggregationOperator.cs
- OdbcConnectionHandle.cs
- ParamArrayAttribute.cs
- StateFinalizationDesigner.cs
- HostedImpersonationContext.cs
- ApplicationFileParser.cs
- BoundingRectTracker.cs
- SequenceNumber.cs
- SystemWebCachingSectionGroup.cs
- Rotation3DKeyFrameCollection.cs
- ArraySubsetEnumerator.cs
- ModelItem.cs
- Rotation3DAnimationUsingKeyFrames.cs
- FrameworkObject.cs
- LiteralControl.cs
- ExtendedProtectionPolicy.cs
- AssociationType.cs
- WebSysDisplayNameAttribute.cs
- SchemaContext.cs
- XNodeValidator.cs
- AvTrace.cs
- MobileUserControlDesigner.cs
- TraceSection.cs
- XmlTextWriter.cs
- EntityDataSourceMemberPath.cs
- SqlNodeTypeOperators.cs
- FullTextState.cs
- ModulesEntry.cs
- XmlElementList.cs
- EntityClassGenerator.cs
- ListenerPerfCounters.cs
- Comparer.cs
- SignatureDescription.cs
- WebPartChrome.cs
- WindowsIdentity.cs
- Command.cs
- BevelBitmapEffect.cs
- CustomUserNameSecurityTokenAuthenticator.cs
- InvalidComObjectException.cs
- MergeLocalizationDirectives.cs