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Aleksandra Grosset
Guest
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How to recive messages sended by window.postMessage ?
my code:
private void IEModule_DocumentComplete2(object pDisp, string url, bool rootDocLoaded)
{
(...)
if (rootDocLoaded)
{
//IHTMLWindow3 window3 = (IHTMLWindow3)(this.HTMLDocument.documentElement.parentElement);
IHTMLWindow3 window3 = (IHTMLWindow3)(this.HTMLDocument.parentWindow);
this.alert.viewError(window3.ToString());
window3.attachEvent("onmessage", new EventHandler(processMessage));
//window3.print();
}
}
private void processMessage(Object sender, EventArgs e)
{
//throw new Exception("message!!!");
this.alert.viewError("message!!!");
}
window3.ToString() prints IHTMLWindow2
window3.print() works just fine... |
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Posted 22 Jun, 2016 06:39:01
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Sergey Grischenko
Add-in Express team
Posts: 7233
Joined: 2004-07-05
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Hi Aleksandra,
Please try the code below:
public IE.WebBrowser IEApp
{
get
{
return (this.IEObj as IE.WebBrowser);
}
}
public mshtml.HTMLDocument HTMLDocument
{
get
{
return (this.HTMLDocumentObj as mshtml.HTMLDocument);
}
}
Window3OnScroll_EventListener onscroll;
Window3OnMessage_EventListener onmessage;
[ComVisible(true)]
[ClassInterface(ClassInterfaceType.AutoDispatch)]
public class Window3OnScroll_EventListener
{
IEModule module;
internal Window3OnScroll_EventListener(IEModule module)
{
this.module = module;
}
[DispId(0)]
public void HandleEvent(object pEvtObj)
{
try
{
}
catch (Exception)
{
}
finally
{
if (pEvtObj != null)
Marshal.ReleaseComObject(pEvtObj);
}
}
}
[ComVisible(true)]
[ClassInterface(ClassInterfaceType.AutoDispatch)]
public class Window3OnMessage_EventListener
{
IEModule module;
internal Window3OnMessage_EventListener(IEModule module)
{
this.module = module;
}
[DispId(0)]
public void HandleEvent(object pEvtObj)
{
try
{
mshtml.IHTMLEventObj2 event_ = pEvtObj as mshtml.IHTMLEventObj2;
if (event_ != null)
MessageBox.Show(this.module, "OnMessage handler");
}
catch (Exception)
{
}
finally
{
if (pEvtObj != null)
Marshal.ReleaseComObject(pEvtObj);
}
}
}
private void IEModule_OnConnect(object sender, int threadId)
{
this.onscroll = new Window3OnScroll_EventListener(this);
this.onmessage = new Window3OnMessage_EventListener(this);
}
private void adxieContextMenuCommandItem1_OnClick(object sender, object htmlElement)
{
HTMLDocument.parentWindow.GetType().InvokeMember("postMessage", BindingFlags.InvokeMethod, null, HTMLDocument.parentWindow, new object[] { "Message", "*" });
}
private void IEModule_DocumentComplete2(object pDisp, string url, bool rootDocLoaded)
{
if (rootDocLoaded)
{
mshtml.IHTMLWindow3 hWnd3 = HTMLDocument.parentWindow as mshtml.IHTMLWindow3;
if (hWnd3 != null)
{
try
{
hWnd3.attachEvent("onscroll", this.onscroll);
hWnd3.attachEvent("onmessage", this.onmessage);
}
catch (Exception)
{
}
}
}
}
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Posted 22 Jun, 2016 17:02:16
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Aleksandra Grosset
Guest
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Should that code work also with AddinExpress.IE.ADXIEToolbarModule ?
My plugin is Tooolbar, and this code does not work with it... |
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Posted 23 Jun, 2016 06:23:36
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Sergey Grischenko
Add-in Express team
Posts: 7233
Joined: 2004-07-05
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Hi Aleksandra,
Yes, it should work in all modules. What exactly doesn't work? Do you get any exceptions? |
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Posted 23 Jun, 2016 09:57:40
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Aleksandra Grosset
Guest
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No, just does not work at all...
I get no Exceptions on hWnd3.attachEvent("onscroll", this.onscroll); (or onmessage attache)
but also no "HandleEvent scroll" Exception, when i'm scrolling (etc):
public class Window3OnScroll_EventListener
{
IEToolbarModule module;
internal Window3OnScroll_EventListener(IEToolbarModule module)
{
this.module = module;
}
[DispId(0)]
public void HandleEvent(object pEvtObj)
{
throw new Exception("HandleEvent scroll");
(...) |
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Posted 23 Jun, 2016 10:40:13
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Aleksandra Grosset
Guest
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Now it works!
mshtml.IHTMLWindow2 hWnd2 = HTMLDocument.parentWindow as mshtml.IHTMLWindow2;
mshtml.IHTMLWindow3 hWnd3 = hWnd2.window as mshtml.IHTMLWindow3; |
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Posted 24 Jun, 2016 05:00:54
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Andrei Smolin
Add-in Express team
Posts: 18829
Joined: 2006-05-11
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Thank you for letting us know!
Andrei Smolin
Add-in Express Team Leader |
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Posted 24 Jun, 2016 05:03:18
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Aleksandra Grosset
Guest
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Do You know, how to recive the pstMessage data?
window.postMessage({ type: "to-page-bgp", action: "get-process-list"}, "*");
how can I get action, or type of message? |
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Posted 24 Jun, 2016 06:43:05
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Aleksandra Grosset
Guest
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I can recive window.postMessage("get-process-list", "*");
mshtml.IHTMLEventObj5 event_5 = event_ as mshtml.IHTMLEventObj5;
MessageBox.Show(this.module, "OnMessage handler" + event_5.data);
when event_5.data is a string value, what to do if its a object (string object Object) |
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Posted 24 Jun, 2016 07:11:48
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Sergey Grischenko
Add-in Express team
Posts: 7233
Joined: 2004-07-05
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Hi Aleksandra,
If an object implements the IDispatch interface, you can use the later binding to invoke public methods of the object.
E.g.
obj.GetType().InvokeMember("Method name", System.Reflection.BindingFlags.InvokeMethod, null, object, new object[] { arg1,... agrX} );
Or just serialize the object to a string and pass it via the postMessage function. |
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Posted 24 Jun, 2016 10:11:48
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