static public IHTMLElement GetFrame(mshtml.IHTMLDocument2 doc)
{
IHTMLElement frame = null;
mshtml.IHTMLWindow2 window2 = null;
try
{
window2 = doc.parentWindow as mshtml.IHTMLWindow2;
if (window2 != null)
{
return(((mshtml.HTMLWindow2)window2).frameElement as IHTMLElement);
}
}
catch (UnauthorizedAccessException) {
//主页面和IFRAME页面处于不同域名的时候会报UnauthorizedAccessException，下面通过IHTMLWindow2->IWebBrowser2
//比较IWebBrowser2和iframe元素url定位iframe
SHDocVw.IWebBrowser2 browser = CrossFrameIE.GetIWebBrowser2(window2);
mshtml.IHTMLDocument3 parentDoc = browser.Parent as mshtml.IHTMLDocument3;
mshtml.IHTMLElementCollection framesCollection = parentDoc.getElementsByTagName("iframe") as mshtml.IHTMLElementCollection;
foreach (mshtml.IHTMLElement f in framesCollection)
{
SHDocVw.IWebBrowser2 wb2 = (SHDocVw.IWebBrowser2)((mshtml.HTMLFrameElement)f);
if (wb2.LocationURL == browser.LocationURL)
{
frame = f as IHTMLElement;
break;
}
}
}
catch (Exception)
{
return(null);
}
return(frame);
}
private static bool GetEleParentFrames(mshtml.IHTMLDOMNode root, mshtml.IHTMLDOMNode node, List <mshtml.IHTMLDOMNode> frames)
{
bool flag = false;
if (root == node)
{
return(true);
}
bool flag2 = false;
switch (root.nodeName.ToLower())
{
case "frame":
case "iframe":
flag2 = true;
break;
}
IHTMLDOMChildrenCollection childNodes = null;
if (flag2)
{
SHDocVw.IWebBrowser2 browser = root as SHDocVw.IWebBrowser2;
if (browser != null)
{
mshtml.IHTMLDocument2 document = browser.Document as mshtml.IHTMLDocument2;
if (document != null)
{
mshtml.IHTMLDOMNode parentElement = document.body.parentElement as mshtml.IHTMLDOMNode;
childNodes = parentElement.childNodes as IHTMLDOMChildrenCollection;
}
}
}
if (childNodes == null)
{
childNodes = root.childNodes as IHTMLDOMChildrenCollection;
}
if (childNodes == null)
{
return(false);
}
for (int i = 0; i < childNodes.length; i++)
{
mshtml.IHTMLDOMNode node3 = childNodes.item(i) as mshtml.IHTMLDOMNode;
if (GetEleParentFrames(node3, node, frames))
{
if (flag2)
{
frames.Add(root);
}
flag = true;
}
}
return(flag);
}
public virtual void Release()
{
canvasHWND = IntPtr.Zero;
mainHWND = IntPtr.Zero;
if (m_pDWebBrowserEvents2 != null)
{
Marshal.ReleaseComObject(m_pDWebBrowserEvents2);
m_pDWebBrowserEvents2 = null;
}
if (m_pIWebBrowser2 != null)
{
Marshal.ReleaseComObject(m_pIWebBrowser2);
m_pIWebBrowser2 = null;
}
}
protected override void DetachInterfaces()
{
Iwb2 = null;
base.DetachInterfaces();
}
protected override void AttachInterfaces(object nativeActiveXObject)
{
Iwb2 = (SHDocVw.IWebBrowser2)nativeActiveXObject;
Iwb2.Silent = true;
base.AttachInterfaces(nativeActiveXObject);
}
public SetSiteResults SetSiteWithStatus(object pUnkSite)
{
if (m_pIWebBrowser2 != null)
{
Release();
}
if (pUnkSite == null)
{
return(SetSiteResults.NoSite);
}
try
{
MySpace.MSFast.SysImpl.Win32.ComIterop.IServiceProvider pSp = pUnkSite as MySpace.MSFast.SysImpl.Win32.ComIterop.IServiceProvider;
if (pSp == null)
{
Release();
return(SetSiteResults.SiteIsNotServiceProvider);
}
IntPtr ipWb2 = IntPtr.Zero;
pSp.QueryService(ref IID_IWebBrowserApp, ref IID_IWebBrowser2, out ipWb2);
if (ipWb2 == IntPtr.Zero)
{
Marshal.Release(ipWb2);
Release();
return(SetSiteResults.SiteIsNotAWebBrowser);
}
m_pIWebBrowser2 = Marshal.GetObjectForIUnknown(ipWb2) as IWebBrowser2;
Marshal.Release(ipWb2);
if (m_pIWebBrowser2 == null)
{
Release();
return(SetSiteResults.SiteIsNotAWebBrowser);
}
string sHostName = m_pIWebBrowser2.FullName;
if (sHostName == null)
{
Release();
return(SetSiteResults.SiteHasNoName);
}
if (!(sHostName.ToUpper().EndsWith("IEXPLORE.EXE")))
{
Release();
return(SetSiteResults.SiteIsNotIExplorer);
}
m_pDWebBrowserEvents2 = m_pIWebBrowser2 as SHDocVw.DWebBrowserEvents2_Event;
this.mainHWND = (IntPtr)m_pIWebBrowser2.HWND;
if (m_pDWebBrowserEvents2 == null)
{
Release();
return(SetSiteResults.CantRegisterEventHandlers);
}
m_pDWebBrowserEvents2.BeforeNavigate2 += new SHDocVw.DWebBrowserEvents2_BeforeNavigate2EventHandler(this.OnBeforeNavigate);
m_pDWebBrowserEvents2.DocumentComplete += new SHDocVw.DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete);
m_pDWebBrowserEvents2.OnQuit += new SHDocVw.DWebBrowserEvents2_OnQuitEventHandler(this.OnQuit);
m_pDWebBrowserEvents2.NavigateComplete2 += new DWebBrowserEvents2_NavigateComplete2EventHandler(this.NavigateComplete2);
}
catch
{
Release();
return(SetSiteResults.UnknownException);
}
CheckPageReady();
return(SetSiteResults.Success);
}
public SecondaryOnloadEventArgs(IWebBrowser2 _pWb)
{
this.m_pWb = _pWb;
this.Cancel = false;
}