Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / WinForms / Managed / System / WinForms / HtmlDocument.cs / 1 / HtmlDocument.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Drawing.Printing;
using System.Globalization;
using System.IO;
using System.Net;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;
namespace System.Windows.Forms
{
///
/// [To be supplied.]
///
[PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")]
public sealed class HtmlDocument
{
internal static object EventClick = new object();
internal static object EventContextMenuShowing = new object();
internal static object EventFocusing = new object();
internal static object EventLosingFocus = new object();
internal static object EventMouseDown = new object();
internal static object EventMouseLeave = new object();
internal static object EventMouseMove = new object();
internal static object EventMouseOver = new object();
internal static object EventMouseUp = new object();
internal static object EventStop = new object();
private UnsafeNativeMethods.IHTMLDocument2 htmlDocument2;
private HtmlShimManager shimManager;
[PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
internal HtmlDocument(HtmlShimManager shimManager, UnsafeNativeMethods.IHTMLDocument doc)
{
this.htmlDocument2 = (UnsafeNativeMethods.IHTMLDocument2)doc;
Debug.Assert(this.NativeHtmlDocument2 != null, "The document should implement IHtmlDocument2");
this.shimManager = shimManager;
}
internal UnsafeNativeMethods.IHTMLDocument2 NativeHtmlDocument2
{
get
{
return this.htmlDocument2;
}
}
private HtmlDocumentShim DocumentShim
{
get
{
if (ShimManager != null)
{
HtmlDocumentShim shim = ShimManager.GetDocumentShim(this);
if (shim == null)
{
shimManager.AddDocumentShim(this);
shim = ShimManager.GetDocumentShim(this);
}
return shim;
}
return null;
}
}
private HtmlShimManager ShimManager
{
get
{
return this.shimManager;
}
}
///
/// [To be supplied.]
///
public HtmlElement ActiveElement
{
get
{
UnsafeNativeMethods.IHTMLElement iHtmlElement = this.NativeHtmlDocument2.GetActiveElement();
return iHtmlElement != null ? new HtmlElement(ShimManager, iHtmlElement) : null;
}
}
///
/// [To be supplied.]
///
public HtmlElement Body
{
get
{
UnsafeNativeMethods.IHTMLElement iHtmlElement = this.NativeHtmlDocument2.GetBody();
return iHtmlElement != null ? new HtmlElement(ShimManager, iHtmlElement) : null;
}
}
///
/// [To be supplied.]
///
public string Domain
{
get
{
return this.NativeHtmlDocument2.GetDomain();
}
set
{
try
{
this.NativeHtmlDocument2.SetDomain(value);
}
catch (ArgumentException)
{
// Give a better message describing the error
throw new ArgumentException(SR.GetString(SR.HtmlDocumentInvalidDomain));
}
}
}
///
/// [To be supplied.]
///
public string Title
{
get
{
return this.NativeHtmlDocument2.GetTitle();
}
set
{
this.NativeHtmlDocument2.SetTitle(value);
}
}
///
/// [To be supplied.]
///
public Uri Url
{
get
{
UnsafeNativeMethods.IHTMLLocation iHtmlLocation = this.NativeHtmlDocument2.GetLocation();
string stringLocation = (iHtmlLocation == null) ? "" : iHtmlLocation.GetHref();
return string.IsNullOrEmpty(stringLocation) ? null : new Uri(stringLocation);
}
}
///
/// [To be supplied.]
///
public HtmlWindow Window
{
get
{
UnsafeNativeMethods.IHTMLWindow2 iHTMLWindow2 = this.NativeHtmlDocument2.GetParentWindow();
return iHTMLWindow2 != null ? new HtmlWindow(ShimManager, iHTMLWindow2) : null;
}
}
///
/// [To be supplied.]
///
public Color BackColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetBgColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetBgColor(color);
}
}
///
/// [To be supplied.]
///
public Color ForeColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetFgColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetFgColor(color);
}
}
///
/// [To be supplied.]
///
public Color LinkColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetLinkColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetLinkColor(color);
}
}
///
/// [To be supplied.]
///
public Color ActiveLinkColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetAlinkColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetAlinkColor(color);
}
}
///
/// [To be supplied.]
///
public Color VisitedLinkColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetVlinkColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetVlinkColor(color);
}
}
///
/// [To be supplied.]
///
public bool Focused
{
get
{
return ((UnsafeNativeMethods.IHTMLDocument4)this.NativeHtmlDocument2).HasFocus();
}
}
///
/// [To be supplied.]
///
public object DomDocument
{
get
{
return this.NativeHtmlDocument2;
}
}
///
/// [To be supplied.]
///
public string Cookie
{
get
{
return this.NativeHtmlDocument2.GetCookie();
}
set
{
this.NativeHtmlDocument2.SetCookie(value);
}
}
///
/// [To be supplied.]
///
public bool RightToLeft
{
get
{
return ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).GetDir() == "rtl";
}
set
{
((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).SetDir(value ? "rtl" : "ltr");
}
}
///
/// [To be supplied.]
///
public string Encoding
{
get
{
return this.NativeHtmlDocument2.GetCharset();
}
set
{
this.NativeHtmlDocument2.SetCharset(value);
}
}
///
/// [To be supplied.]
///
public string DefaultEncoding
{
get
{
return this.NativeHtmlDocument2.GetDefaultCharset();
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection All
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetAll();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection Links
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetLinks();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection Images
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetImages();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection Forms
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetForms();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public void Write(string text)
{
object[] strs = new object[] { (object)text };
this.NativeHtmlDocument2.Write(strs);
}
///
/// Executes a command on the document
///
public void ExecCommand(string command, bool showUI, object value)
{
this.NativeHtmlDocument2.ExecCommand(command, showUI, value);
}
///
/// [To be supplied.]
///
[EditorBrowsable(EditorBrowsableState.Advanced)]
public void Focus()
{
((UnsafeNativeMethods.IHTMLDocument4)this.NativeHtmlDocument2).Focus();
// Seems to have a problem in really setting focus the first time
((UnsafeNativeMethods.IHTMLDocument4)this.NativeHtmlDocument2).Focus();
}
///
/// [To be supplied.]
///
public HtmlElement GetElementById(string id)
{
UnsafeNativeMethods.IHTMLElement iHTMLElement = ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).GetElementById(id);
return iHTMLElement != null ? new HtmlElement(ShimManager, iHTMLElement) : null;
}
///
/// [To be supplied.]
///
public HtmlElement GetElementFromPoint(Point point)
{
UnsafeNativeMethods.IHTMLElement iHTMLElement = this.NativeHtmlDocument2.ElementFromPoint(point.X, point.Y);
return iHTMLElement != null ? new HtmlElement(ShimManager, iHTMLElement) : null;
}
///
/// [To be supplied.]
///
public HtmlElementCollection GetElementsByTagName(string tagName)
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).GetElementsByTagName(tagName);
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
///
/// [To be supplied.]
///
public HtmlDocument OpenNew(bool replaceInHistory)
{
object name = (object)(replaceInHistory ? "replace" : "");
object nullObject = null;
object ohtmlDocument = this.NativeHtmlDocument2.Open("text/html", name, nullObject, nullObject);
UnsafeNativeMethods.IHTMLDocument iHTMLDocument = ohtmlDocument as UnsafeNativeMethods.IHTMLDocument;
return iHTMLDocument != null ? new HtmlDocument(ShimManager, iHTMLDocument) : null;
}
///
/// [To be supplied.]
///
public HtmlElement CreateElement(string elementTag)
{
UnsafeNativeMethods.IHTMLElement iHTMLElement = this.NativeHtmlDocument2.CreateElement(elementTag);
return iHTMLElement != null ? new HtmlElement(ShimManager, iHTMLElement) : null;
}
///
/// [To be supplied.]
///
public object InvokeScript(string scriptName, object[] args)
{
object retVal = null;
NativeMethods.tagDISPPARAMS dp = new NativeMethods.tagDISPPARAMS();
dp.rgvarg = IntPtr.Zero;
try
{
UnsafeNativeMethods.IDispatch scriptObject = this.NativeHtmlDocument2.GetScript() as UnsafeNativeMethods.IDispatch;
if (scriptObject != null)
{
Guid g = Guid.Empty;
string[] names = new string[] { scriptName };
int[] dispids = new int[] { NativeMethods.ActiveX.DISPID_UNKNOWN };
int hr = scriptObject.GetIDsOfNames(ref g, names, 1,
SafeNativeMethods.GetThreadLCID(), dispids);
if (NativeMethods.Succeeded(hr) && (dispids[0] != NativeMethods.ActiveX.DISPID_UNKNOWN))
{
if (args != null)
{
// Reverse the arg order so that parms read naturally after IDispatch. (bug 187662)
Array.Reverse(args);
}
dp.rgvarg = (args == null) ? IntPtr.Zero : HtmlDocument.ArrayToVARIANTVector(args);
dp.cArgs = (args == null) ? 0 : args.Length;
dp.rgdispidNamedArgs = IntPtr.Zero;
dp.cNamedArgs = 0;
object[] retVals = new object[1];
hr = scriptObject.Invoke(dispids[0], ref g, SafeNativeMethods.GetThreadLCID(),
NativeMethods.DISPATCH_METHOD, dp,
retVals, new NativeMethods.tagEXCEPINFO(), null);
if (hr == NativeMethods.S_OK)
{
retVal = retVals[0];
}
}
}
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
finally
{
if (dp.rgvarg != IntPtr.Zero)
{
HtmlDocument.FreeVARIANTVector(dp.rgvarg, args.Length);
}
}
return retVal;
}
///
/// [To be supplied.]
///
public object InvokeScript(string scriptName)
{
return InvokeScript(scriptName, null);
}
///
/// [To be supplied.]
///
public void AttachEventHandler(string eventName, EventHandler eventHandler)
{
HtmlDocumentShim shim = DocumentShim;
if (shim != null)
{
shim.AttachEventHandler(eventName, eventHandler);
}
}
///
/// [To be supplied.]
///
public void DetachEventHandler(string eventName, EventHandler eventHandler)
{
HtmlDocumentShim shim = DocumentShim;
if (shim != null)
{
shim.DetachEventHandler(eventName, eventHandler);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler Click
{
add
{
DocumentShim.AddHandler(EventClick, value);
}
remove
{
DocumentShim.RemoveHandler(EventClick, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler ContextMenuShowing
{
add
{
DocumentShim.AddHandler(EventContextMenuShowing, value);
}
remove
{
DocumentShim.RemoveHandler(EventContextMenuShowing, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler Focusing
{
add
{
DocumentShim.AddHandler(EventFocusing, value);
}
remove
{
DocumentShim.RemoveHandler(EventFocusing, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler LosingFocus
{
add
{
DocumentShim.AddHandler(EventLosingFocus, value);
}
remove
{
DocumentShim.RemoveHandler(EventLosingFocus, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseDown
{
add
{
DocumentShim.AddHandler(EventMouseDown, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseDown, value);
}
}
///
/// Occurs when the mouse leaves the document
///
public event HtmlElementEventHandler MouseLeave
{
add
{
DocumentShim.AddHandler(EventMouseLeave, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseLeave, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseMove
{
add
{
DocumentShim.AddHandler(EventMouseMove, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseMove, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseOver
{
add
{
DocumentShim.AddHandler(EventMouseOver, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseOver, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseUp
{
add
{
DocumentShim.AddHandler(EventMouseUp, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseUp, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler Stop
{
add
{
DocumentShim.AddHandler(EventStop, value);
}
remove
{
DocumentShim.RemoveHandler(EventStop, value);
}
}
//
// Private helper methods:
//
[StructLayout(LayoutKind.Sequential, Pack = 1)]
private struct FindSizeOfVariant
{
[MarshalAs(UnmanagedType.Struct)]
public object var;
public byte b;
}
private static readonly int VariantSize = (int)Marshal.OffsetOf(typeof(FindSizeOfVariant), "b");
//
// Convert a object[] into an array of VARIANT, allocated with CoTask allocators.
internal unsafe static IntPtr ArrayToVARIANTVector(object[] args)
{
int len = args.Length;
IntPtr mem = Marshal.AllocCoTaskMem(len * VariantSize);
byte* a = (byte*)(void*)mem;
for (int i = 0; i < len; ++i)
{
Marshal.GetNativeVariantForObject(args[i], (IntPtr)(a + VariantSize * i));
}
return mem;
}
//
// Free a Variant array created with the above function
internal unsafe static void FreeVARIANTVector(IntPtr mem, int len)
{
byte* a = (byte*)(void*)mem;
for (int i = 0; i < len; ++i)
{
SafeNativeMethods.VariantClear(new HandleRef(null, (IntPtr)(a + VariantSize * i)));
}
Marshal.FreeCoTaskMem(mem);
}
private Color ColorFromObject(object oColor)
{
try
{
if (oColor is string)
{
string strColor = oColor as String;
int index = strColor.IndexOf('#');
if (index >= 0)
{
// The string is of the form: #ff00a0. Skip past the #
string hexColor = strColor.Substring(index + 1);
// The actual color is non-transparent. So set alpha = 255.
return Color.FromArgb(255, Color.FromArgb(int.Parse(hexColor, NumberStyles.HexNumber, CultureInfo.InvariantCulture)));
}
else
{
return Color.FromName(strColor);
}
}
else if (oColor is int)
{
// The actual color is non-transparent. So set alpha = 255.
return Color.FromArgb(255, Color.FromArgb((int)oColor));
}
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return Color.Empty;
}
///
/// HtmlDocumentShim - this is the glue between the DOM eventing mechanisms
/// and our CLR callbacks.
///
/// There are two kinds of events: HTMLWindowEvents2 and IHtmlWindow3.AttachHandler style
/// HTMLDocumentEvents2: we create an IConnectionPoint (via ConnectionPointCookie) between us and MSHTML and it calls back
/// on our an instance of HTMLDocumentEvents2. The HTMLDocumentEvents2 class then fires the event.
///
/// IHTMLDocument3.AttachHandler: MSHML calls back on an HtmlToClrEventProxy that we've created, looking
/// for a method named DISPID=0. For each event that's subscribed, we create
/// a new HtmlToClrEventProxy, detect the callback and fire the corresponding
/// CLR event.
///
internal class HtmlDocumentShim : HtmlShim
{
private AxHost.ConnectionPointCookie cookie;
private HtmlDocument htmlDocument;
private UnsafeNativeMethods.IHTMLWindow2 associatedWindow = null;
internal HtmlDocumentShim(HtmlDocument htmlDocument)
{
this.htmlDocument = htmlDocument;
// snap our associated window so we know when to disconnect.
if (this.htmlDocument != null)
{
HtmlWindow window = htmlDocument.Window;
if (window != null)
{
associatedWindow = window.NativeHtmlWindow;
}
}
}
public override UnsafeNativeMethods.IHTMLWindow2 AssociatedWindow
{
get { return associatedWindow; }
}
public UnsafeNativeMethods.IHTMLDocument2 NativeHtmlDocument2
{
get { return htmlDocument.NativeHtmlDocument2; }
}
internal HtmlDocument Document
{
get { return htmlDocument; }
}
/// Support IHtmlDocument3.AttachHandler
public override void AttachEventHandler(string eventName, EventHandler eventHandler)
{
// IE likes to call back on an IDispatch of DISPID=0 when it has an event,
// the HtmlToClrEventProxy helps us fake out the CLR so that we can call back on
// our EventHandler properly.
HtmlToClrEventProxy proxy = AddEventProxy(eventName, eventHandler);
bool success = ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).AttachEvent(eventName, proxy);
Debug.Assert(success, "failed to add event");
}
/// Support IHtmlDocument3.DetachHandler
public override void DetachEventHandler(string eventName, EventHandler eventHandler)
{
HtmlToClrEventProxy proxy = RemoveEventProxy(eventHandler);
if (proxy != null)
{
((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).DetachEvent(eventName, proxy);
}
}
//
// Connect to standard events
//
public override void ConnectToEvents()
{
if (cookie == null || !cookie.Connected)
{
this.cookie = new AxHost.ConnectionPointCookie(this.NativeHtmlDocument2,
new HTMLDocumentEvents2(htmlDocument),
typeof(UnsafeNativeMethods.DHTMLDocumentEvents2),
/*throwException*/ false);
if (!cookie.Connected)
{
cookie = null;
}
}
}
//
// Disconnect from standard events
//
public override void DisconnectFromEvents()
{
if (this.cookie != null)
{
this.cookie.Disconnect();
this.cookie = null;
}
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (htmlDocument != null)
{
Marshal.FinalReleaseComObject(htmlDocument.NativeHtmlDocument2);
}
htmlDocument = null;
}
}
protected override object GetEventSender()
{
return htmlDocument;
}
}
//
// Private classes:
//
[ClassInterface(ClassInterfaceType.None)]
private class HTMLDocumentEvents2 : StandardOleMarshalObject, /*Enforce calling back on the same thread*/
UnsafeNativeMethods.DHTMLDocumentEvents2
{
private HtmlDocument parent;
public HTMLDocumentEvents2(HtmlDocument htmlDocument)
{
this.parent = htmlDocument;
}
private void FireEvent(object key, EventArgs e)
{
if (this.parent != null)
{
parent.DocumentShim.FireEvent(key, e);
}
}
public bool onclick(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventClick, e);
return e.ReturnValue;
}
public bool oncontextmenu(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventContextMenuShowing, e);
return e.ReturnValue;
}
public void onfocusin(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventFocusing, e);
}
public void onfocusout(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventLosingFocus, e);
}
public void onmousemove(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseMove, e);
}
public void onmousedown(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseDown, e);
}
public void onmouseout(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseLeave, e);
}
public void onmouseover(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseOver, e);
}
public void onmouseup(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseUp, e);
}
public bool onstop(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventStop, e);
return e.ReturnValue;
}
public bool onhelp(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool ondblclick(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onkeydown(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onkeyup(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onkeypress(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onreadystatechange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onbeforeupdate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onafterupdate(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onrowexit(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onrowenter(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool ondragstart(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onselectstart(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onerrorupdate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onrowsdelete(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onrowsinserted(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void oncellchange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onpropertychange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondatasetchanged(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondataavailable(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondatasetcomplete(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onbeforeeditfocus(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onselectionchange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool oncontrolselect(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onmousewheel(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onactivate(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondeactivate(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onbeforeactivate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onbeforedeactivate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
}
#region operators
///
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
using System;
using System.ComponentModel;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Drawing;
using System.Drawing.Printing;
using System.Globalization;
using System.IO;
using System.Net;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;
namespace System.Windows.Forms
{
///
/// [To be supplied.]
///
[PermissionSetAttribute(SecurityAction.LinkDemand, Name = "FullTrust")]
public sealed class HtmlDocument
{
internal static object EventClick = new object();
internal static object EventContextMenuShowing = new object();
internal static object EventFocusing = new object();
internal static object EventLosingFocus = new object();
internal static object EventMouseDown = new object();
internal static object EventMouseLeave = new object();
internal static object EventMouseMove = new object();
internal static object EventMouseOver = new object();
internal static object EventMouseUp = new object();
internal static object EventStop = new object();
private UnsafeNativeMethods.IHTMLDocument2 htmlDocument2;
private HtmlShimManager shimManager;
[PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
internal HtmlDocument(HtmlShimManager shimManager, UnsafeNativeMethods.IHTMLDocument doc)
{
this.htmlDocument2 = (UnsafeNativeMethods.IHTMLDocument2)doc;
Debug.Assert(this.NativeHtmlDocument2 != null, "The document should implement IHtmlDocument2");
this.shimManager = shimManager;
}
internal UnsafeNativeMethods.IHTMLDocument2 NativeHtmlDocument2
{
get
{
return this.htmlDocument2;
}
}
private HtmlDocumentShim DocumentShim
{
get
{
if (ShimManager != null)
{
HtmlDocumentShim shim = ShimManager.GetDocumentShim(this);
if (shim == null)
{
shimManager.AddDocumentShim(this);
shim = ShimManager.GetDocumentShim(this);
}
return shim;
}
return null;
}
}
private HtmlShimManager ShimManager
{
get
{
return this.shimManager;
}
}
///
/// [To be supplied.]
///
public HtmlElement ActiveElement
{
get
{
UnsafeNativeMethods.IHTMLElement iHtmlElement = this.NativeHtmlDocument2.GetActiveElement();
return iHtmlElement != null ? new HtmlElement(ShimManager, iHtmlElement) : null;
}
}
///
/// [To be supplied.]
///
public HtmlElement Body
{
get
{
UnsafeNativeMethods.IHTMLElement iHtmlElement = this.NativeHtmlDocument2.GetBody();
return iHtmlElement != null ? new HtmlElement(ShimManager, iHtmlElement) : null;
}
}
///
/// [To be supplied.]
///
public string Domain
{
get
{
return this.NativeHtmlDocument2.GetDomain();
}
set
{
try
{
this.NativeHtmlDocument2.SetDomain(value);
}
catch (ArgumentException)
{
// Give a better message describing the error
throw new ArgumentException(SR.GetString(SR.HtmlDocumentInvalidDomain));
}
}
}
///
/// [To be supplied.]
///
public string Title
{
get
{
return this.NativeHtmlDocument2.GetTitle();
}
set
{
this.NativeHtmlDocument2.SetTitle(value);
}
}
///
/// [To be supplied.]
///
public Uri Url
{
get
{
UnsafeNativeMethods.IHTMLLocation iHtmlLocation = this.NativeHtmlDocument2.GetLocation();
string stringLocation = (iHtmlLocation == null) ? "" : iHtmlLocation.GetHref();
return string.IsNullOrEmpty(stringLocation) ? null : new Uri(stringLocation);
}
}
///
/// [To be supplied.]
///
public HtmlWindow Window
{
get
{
UnsafeNativeMethods.IHTMLWindow2 iHTMLWindow2 = this.NativeHtmlDocument2.GetParentWindow();
return iHTMLWindow2 != null ? new HtmlWindow(ShimManager, iHTMLWindow2) : null;
}
}
///
/// [To be supplied.]
///
public Color BackColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetBgColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetBgColor(color);
}
}
///
/// [To be supplied.]
///
public Color ForeColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetFgColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetFgColor(color);
}
}
///
/// [To be supplied.]
///
public Color LinkColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetLinkColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetLinkColor(color);
}
}
///
/// [To be supplied.]
///
public Color ActiveLinkColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetAlinkColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetAlinkColor(color);
}
}
///
/// [To be supplied.]
///
public Color VisitedLinkColor
{
get
{
Color c = Color.Empty;
try
{
c = this.ColorFromObject(this.NativeHtmlDocument2.GetVlinkColor());
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return c;
}
set
{
int color = value.R << 16 | value.G << 8 | value.B;
this.NativeHtmlDocument2.SetVlinkColor(color);
}
}
///
/// [To be supplied.]
///
public bool Focused
{
get
{
return ((UnsafeNativeMethods.IHTMLDocument4)this.NativeHtmlDocument2).HasFocus();
}
}
///
/// [To be supplied.]
///
public object DomDocument
{
get
{
return this.NativeHtmlDocument2;
}
}
///
/// [To be supplied.]
///
public string Cookie
{
get
{
return this.NativeHtmlDocument2.GetCookie();
}
set
{
this.NativeHtmlDocument2.SetCookie(value);
}
}
///
/// [To be supplied.]
///
public bool RightToLeft
{
get
{
return ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).GetDir() == "rtl";
}
set
{
((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).SetDir(value ? "rtl" : "ltr");
}
}
///
/// [To be supplied.]
///
public string Encoding
{
get
{
return this.NativeHtmlDocument2.GetCharset();
}
set
{
this.NativeHtmlDocument2.SetCharset(value);
}
}
///
/// [To be supplied.]
///
public string DefaultEncoding
{
get
{
return this.NativeHtmlDocument2.GetDefaultCharset();
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection All
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetAll();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection Links
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetLinks();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection Images
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetImages();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public HtmlElementCollection Forms
{
get
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = this.NativeHtmlDocument2.GetForms();
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
}
///
/// [To be supplied.]
///
public void Write(string text)
{
object[] strs = new object[] { (object)text };
this.NativeHtmlDocument2.Write(strs);
}
///
/// Executes a command on the document
///
public void ExecCommand(string command, bool showUI, object value)
{
this.NativeHtmlDocument2.ExecCommand(command, showUI, value);
}
///
/// [To be supplied.]
///
[EditorBrowsable(EditorBrowsableState.Advanced)]
public void Focus()
{
((UnsafeNativeMethods.IHTMLDocument4)this.NativeHtmlDocument2).Focus();
// Seems to have a problem in really setting focus the first time
((UnsafeNativeMethods.IHTMLDocument4)this.NativeHtmlDocument2).Focus();
}
///
/// [To be supplied.]
///
public HtmlElement GetElementById(string id)
{
UnsafeNativeMethods.IHTMLElement iHTMLElement = ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).GetElementById(id);
return iHTMLElement != null ? new HtmlElement(ShimManager, iHTMLElement) : null;
}
///
/// [To be supplied.]
///
public HtmlElement GetElementFromPoint(Point point)
{
UnsafeNativeMethods.IHTMLElement iHTMLElement = this.NativeHtmlDocument2.ElementFromPoint(point.X, point.Y);
return iHTMLElement != null ? new HtmlElement(ShimManager, iHTMLElement) : null;
}
///
/// [To be supplied.]
///
public HtmlElementCollection GetElementsByTagName(string tagName)
{
UnsafeNativeMethods.IHTMLElementCollection iHTMLElementCollection = ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).GetElementsByTagName(tagName);
return iHTMLElementCollection != null ? new HtmlElementCollection(ShimManager, iHTMLElementCollection) : new HtmlElementCollection(ShimManager);
}
///
/// [To be supplied.]
///
public HtmlDocument OpenNew(bool replaceInHistory)
{
object name = (object)(replaceInHistory ? "replace" : "");
object nullObject = null;
object ohtmlDocument = this.NativeHtmlDocument2.Open("text/html", name, nullObject, nullObject);
UnsafeNativeMethods.IHTMLDocument iHTMLDocument = ohtmlDocument as UnsafeNativeMethods.IHTMLDocument;
return iHTMLDocument != null ? new HtmlDocument(ShimManager, iHTMLDocument) : null;
}
///
/// [To be supplied.]
///
public HtmlElement CreateElement(string elementTag)
{
UnsafeNativeMethods.IHTMLElement iHTMLElement = this.NativeHtmlDocument2.CreateElement(elementTag);
return iHTMLElement != null ? new HtmlElement(ShimManager, iHTMLElement) : null;
}
///
/// [To be supplied.]
///
public object InvokeScript(string scriptName, object[] args)
{
object retVal = null;
NativeMethods.tagDISPPARAMS dp = new NativeMethods.tagDISPPARAMS();
dp.rgvarg = IntPtr.Zero;
try
{
UnsafeNativeMethods.IDispatch scriptObject = this.NativeHtmlDocument2.GetScript() as UnsafeNativeMethods.IDispatch;
if (scriptObject != null)
{
Guid g = Guid.Empty;
string[] names = new string[] { scriptName };
int[] dispids = new int[] { NativeMethods.ActiveX.DISPID_UNKNOWN };
int hr = scriptObject.GetIDsOfNames(ref g, names, 1,
SafeNativeMethods.GetThreadLCID(), dispids);
if (NativeMethods.Succeeded(hr) && (dispids[0] != NativeMethods.ActiveX.DISPID_UNKNOWN))
{
if (args != null)
{
// Reverse the arg order so that parms read naturally after IDispatch. (bug 187662)
Array.Reverse(args);
}
dp.rgvarg = (args == null) ? IntPtr.Zero : HtmlDocument.ArrayToVARIANTVector(args);
dp.cArgs = (args == null) ? 0 : args.Length;
dp.rgdispidNamedArgs = IntPtr.Zero;
dp.cNamedArgs = 0;
object[] retVals = new object[1];
hr = scriptObject.Invoke(dispids[0], ref g, SafeNativeMethods.GetThreadLCID(),
NativeMethods.DISPATCH_METHOD, dp,
retVals, new NativeMethods.tagEXCEPINFO(), null);
if (hr == NativeMethods.S_OK)
{
retVal = retVals[0];
}
}
}
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
finally
{
if (dp.rgvarg != IntPtr.Zero)
{
HtmlDocument.FreeVARIANTVector(dp.rgvarg, args.Length);
}
}
return retVal;
}
///
/// [To be supplied.]
///
public object InvokeScript(string scriptName)
{
return InvokeScript(scriptName, null);
}
///
/// [To be supplied.]
///
public void AttachEventHandler(string eventName, EventHandler eventHandler)
{
HtmlDocumentShim shim = DocumentShim;
if (shim != null)
{
shim.AttachEventHandler(eventName, eventHandler);
}
}
///
/// [To be supplied.]
///
public void DetachEventHandler(string eventName, EventHandler eventHandler)
{
HtmlDocumentShim shim = DocumentShim;
if (shim != null)
{
shim.DetachEventHandler(eventName, eventHandler);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler Click
{
add
{
DocumentShim.AddHandler(EventClick, value);
}
remove
{
DocumentShim.RemoveHandler(EventClick, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler ContextMenuShowing
{
add
{
DocumentShim.AddHandler(EventContextMenuShowing, value);
}
remove
{
DocumentShim.RemoveHandler(EventContextMenuShowing, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler Focusing
{
add
{
DocumentShim.AddHandler(EventFocusing, value);
}
remove
{
DocumentShim.RemoveHandler(EventFocusing, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler LosingFocus
{
add
{
DocumentShim.AddHandler(EventLosingFocus, value);
}
remove
{
DocumentShim.RemoveHandler(EventLosingFocus, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseDown
{
add
{
DocumentShim.AddHandler(EventMouseDown, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseDown, value);
}
}
///
/// Occurs when the mouse leaves the document
///
public event HtmlElementEventHandler MouseLeave
{
add
{
DocumentShim.AddHandler(EventMouseLeave, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseLeave, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseMove
{
add
{
DocumentShim.AddHandler(EventMouseMove, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseMove, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseOver
{
add
{
DocumentShim.AddHandler(EventMouseOver, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseOver, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler MouseUp
{
add
{
DocumentShim.AddHandler(EventMouseUp, value);
}
remove
{
DocumentShim.RemoveHandler(EventMouseUp, value);
}
}
///
/// [To be supplied.]
///
public event HtmlElementEventHandler Stop
{
add
{
DocumentShim.AddHandler(EventStop, value);
}
remove
{
DocumentShim.RemoveHandler(EventStop, value);
}
}
//
// Private helper methods:
//
[StructLayout(LayoutKind.Sequential, Pack = 1)]
private struct FindSizeOfVariant
{
[MarshalAs(UnmanagedType.Struct)]
public object var;
public byte b;
}
private static readonly int VariantSize = (int)Marshal.OffsetOf(typeof(FindSizeOfVariant), "b");
//
// Convert a object[] into an array of VARIANT, allocated with CoTask allocators.
internal unsafe static IntPtr ArrayToVARIANTVector(object[] args)
{
int len = args.Length;
IntPtr mem = Marshal.AllocCoTaskMem(len * VariantSize);
byte* a = (byte*)(void*)mem;
for (int i = 0; i < len; ++i)
{
Marshal.GetNativeVariantForObject(args[i], (IntPtr)(a + VariantSize * i));
}
return mem;
}
//
// Free a Variant array created with the above function
internal unsafe static void FreeVARIANTVector(IntPtr mem, int len)
{
byte* a = (byte*)(void*)mem;
for (int i = 0; i < len; ++i)
{
SafeNativeMethods.VariantClear(new HandleRef(null, (IntPtr)(a + VariantSize * i)));
}
Marshal.FreeCoTaskMem(mem);
}
private Color ColorFromObject(object oColor)
{
try
{
if (oColor is string)
{
string strColor = oColor as String;
int index = strColor.IndexOf('#');
if (index >= 0)
{
// The string is of the form: #ff00a0. Skip past the #
string hexColor = strColor.Substring(index + 1);
// The actual color is non-transparent. So set alpha = 255.
return Color.FromArgb(255, Color.FromArgb(int.Parse(hexColor, NumberStyles.HexNumber, CultureInfo.InvariantCulture)));
}
else
{
return Color.FromName(strColor);
}
}
else if (oColor is int)
{
// The actual color is non-transparent. So set alpha = 255.
return Color.FromArgb(255, Color.FromArgb((int)oColor));
}
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
return Color.Empty;
}
///
/// HtmlDocumentShim - this is the glue between the DOM eventing mechanisms
/// and our CLR callbacks.
///
/// There are two kinds of events: HTMLWindowEvents2 and IHtmlWindow3.AttachHandler style
/// HTMLDocumentEvents2: we create an IConnectionPoint (via ConnectionPointCookie) between us and MSHTML and it calls back
/// on our an instance of HTMLDocumentEvents2. The HTMLDocumentEvents2 class then fires the event.
///
/// IHTMLDocument3.AttachHandler: MSHML calls back on an HtmlToClrEventProxy that we've created, looking
/// for a method named DISPID=0. For each event that's subscribed, we create
/// a new HtmlToClrEventProxy, detect the callback and fire the corresponding
/// CLR event.
///
internal class HtmlDocumentShim : HtmlShim
{
private AxHost.ConnectionPointCookie cookie;
private HtmlDocument htmlDocument;
private UnsafeNativeMethods.IHTMLWindow2 associatedWindow = null;
internal HtmlDocumentShim(HtmlDocument htmlDocument)
{
this.htmlDocument = htmlDocument;
// snap our associated window so we know when to disconnect.
if (this.htmlDocument != null)
{
HtmlWindow window = htmlDocument.Window;
if (window != null)
{
associatedWindow = window.NativeHtmlWindow;
}
}
}
public override UnsafeNativeMethods.IHTMLWindow2 AssociatedWindow
{
get { return associatedWindow; }
}
public UnsafeNativeMethods.IHTMLDocument2 NativeHtmlDocument2
{
get { return htmlDocument.NativeHtmlDocument2; }
}
internal HtmlDocument Document
{
get { return htmlDocument; }
}
/// Support IHtmlDocument3.AttachHandler
public override void AttachEventHandler(string eventName, EventHandler eventHandler)
{
// IE likes to call back on an IDispatch of DISPID=0 when it has an event,
// the HtmlToClrEventProxy helps us fake out the CLR so that we can call back on
// our EventHandler properly.
HtmlToClrEventProxy proxy = AddEventProxy(eventName, eventHandler);
bool success = ((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).AttachEvent(eventName, proxy);
Debug.Assert(success, "failed to add event");
}
/// Support IHtmlDocument3.DetachHandler
public override void DetachEventHandler(string eventName, EventHandler eventHandler)
{
HtmlToClrEventProxy proxy = RemoveEventProxy(eventHandler);
if (proxy != null)
{
((UnsafeNativeMethods.IHTMLDocument3)this.NativeHtmlDocument2).DetachEvent(eventName, proxy);
}
}
//
// Connect to standard events
//
public override void ConnectToEvents()
{
if (cookie == null || !cookie.Connected)
{
this.cookie = new AxHost.ConnectionPointCookie(this.NativeHtmlDocument2,
new HTMLDocumentEvents2(htmlDocument),
typeof(UnsafeNativeMethods.DHTMLDocumentEvents2),
/*throwException*/ false);
if (!cookie.Connected)
{
cookie = null;
}
}
}
//
// Disconnect from standard events
//
public override void DisconnectFromEvents()
{
if (this.cookie != null)
{
this.cookie.Disconnect();
this.cookie = null;
}
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (htmlDocument != null)
{
Marshal.FinalReleaseComObject(htmlDocument.NativeHtmlDocument2);
}
htmlDocument = null;
}
}
protected override object GetEventSender()
{
return htmlDocument;
}
}
//
// Private classes:
//
[ClassInterface(ClassInterfaceType.None)]
private class HTMLDocumentEvents2 : StandardOleMarshalObject, /*Enforce calling back on the same thread*/
UnsafeNativeMethods.DHTMLDocumentEvents2
{
private HtmlDocument parent;
public HTMLDocumentEvents2(HtmlDocument htmlDocument)
{
this.parent = htmlDocument;
}
private void FireEvent(object key, EventArgs e)
{
if (this.parent != null)
{
parent.DocumentShim.FireEvent(key, e);
}
}
public bool onclick(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventClick, e);
return e.ReturnValue;
}
public bool oncontextmenu(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventContextMenuShowing, e);
return e.ReturnValue;
}
public void onfocusin(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventFocusing, e);
}
public void onfocusout(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventLosingFocus, e);
}
public void onmousemove(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseMove, e);
}
public void onmousedown(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseDown, e);
}
public void onmouseout(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseLeave, e);
}
public void onmouseover(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseOver, e);
}
public void onmouseup(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventMouseUp, e);
}
public bool onstop(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
FireEvent(HtmlDocument.EventStop, e);
return e.ReturnValue;
}
public bool onhelp(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool ondblclick(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onkeydown(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onkeyup(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onkeypress(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onreadystatechange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onbeforeupdate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onafterupdate(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onrowexit(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onrowenter(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool ondragstart(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onselectstart(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onerrorupdate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onrowsdelete(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onrowsinserted(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void oncellchange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onpropertychange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondatasetchanged(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondataavailable(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondatasetcomplete(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onbeforeeditfocus(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void onselectionchange(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool oncontrolselect(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onmousewheel(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public void onactivate(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public void ondeactivate(UnsafeNativeMethods.IHTMLEventObj evtObj) { }
public bool onbeforeactivate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
public bool onbeforedeactivate(UnsafeNativeMethods.IHTMLEventObj evtObj)
{
HtmlElementEventArgs e = new HtmlElementEventArgs(parent.ShimManager, evtObj);
return e.ReturnValue;
}
}
#region operators
///
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- AnnotationComponentManager.cs
- SimpleWebHandlerParser.cs
- ClientCultureInfo.cs
- FullTextLine.cs
- BinaryObjectReader.cs
- Assembly.cs
- SoapEnumAttribute.cs
- AudioSignalProblemOccurredEventArgs.cs
- SimpleBitVector32.cs
- XXXInfos.cs
- HandledMouseEvent.cs
- wgx_sdk_version.cs
- TextServicesManager.cs
- CharEnumerator.cs
- newinstructionaction.cs
- StagingAreaInputItem.cs
- ObjectView.cs
- DbDataReader.cs
- PropertiesTab.cs
- SqlDataSourceSelectingEventArgs.cs
- TimerElapsedEvenArgs.cs
- Model3D.cs
- ErasingStroke.cs
- SharedUtils.cs
- TypedReference.cs
- GPRECTF.cs
- EventPropertyMap.cs
- RegexParser.cs
- ResourcePool.cs
- ToolboxBitmapAttribute.cs
- MarkerProperties.cs
- BindingExpressionUncommonField.cs
- InvalidComObjectException.cs
- SchemaAttDef.cs
- ApplicationSecurityManager.cs
- AssemblySettingAttributes.cs
- XPathAxisIterator.cs
- SessionIDManager.cs
- LayoutDump.cs
- NetMsmqBindingElement.cs
- Util.cs
- EntityDataSourceReferenceGroup.cs
- SHA512Cng.cs
- Guid.cs
- ChangeInterceptorAttribute.cs
- ComplexObject.cs
- DockingAttribute.cs
- StringConverter.cs
- TaskHelper.cs
- DataContractSerializerSection.cs
- PathGradientBrush.cs
- SimpleBitVector32.cs
- ParseHttpDate.cs
- SimpleFieldTemplateUserControl.cs
- EnglishPluralizationService.cs
- ScrollBarAutomationPeer.cs
- ConnectionStringSettings.cs
- CompModSwitches.cs
- CodeTypeParameter.cs
- _HelperAsyncResults.cs
- GenericUI.cs
- EFTableProvider.cs
- BaseUriHelper.cs
- FontFamily.cs
- TransportConfigurationTypeElement.cs
- TransformPattern.cs
- ContractUtils.cs
- ObjectDataSourceSelectingEventArgs.cs
- XmlDataSourceNodeDescriptor.cs
- LinearQuaternionKeyFrame.cs
- UICuesEvent.cs
- HexParser.cs
- RegexMatch.cs
- TableFieldsEditor.cs
- GridViewHeaderRowPresenterAutomationPeer.cs
- SettingsProviderCollection.cs
- FlowDecisionDesigner.xaml.cs
- SchemaElementDecl.cs
- MaskedTextBoxDesigner.cs
- ScrollChangedEventArgs.cs
- ConfigXmlAttribute.cs
- UpdateCompiler.cs
- QueryAccessibilityHelpEvent.cs
- ControlPropertyNameConverter.cs
- CancelEventArgs.cs
- TypefaceMap.cs
- KeyConstraint.cs
- DataGridTextBoxColumn.cs
- KeyManager.cs
- Vertex.cs
- OleDbSchemaGuid.cs
- XPathDocumentIterator.cs
- ContentType.cs
- CompilerResults.cs
- VideoDrawing.cs
- AccessorTable.cs
- VirtualizingStackPanel.cs
- TrayIconDesigner.cs
- PageCache.cs
- DataRow.cs