Chromium Embedded Framework Forum

by **yanivt** » Mon Dec 07, 2020 3:36 pm

Great sample !!
btw :

when i ignored the OnBeforePopup (lifespanhandler) and decided to goto default behavior to start the pop-up,
even than i could not access to the parent ,although i set it in the JS method...

Code: Select all: function openChild(file,window) { childWindow=open(file,window); childWindow.parent = self; }

could it be a bug ?

by **amaitland** » Mon Dec 07, 2020 4:11 pm

Does it work in Chrome?

by **yanivt** » Tue Dec 08, 2020 2:43 am

yes its working from chrome - i checked that.
e.g.
main1.html

Code: Select all: <!DOCTYPE html> <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8" /> <title></title> <script type="text/javascript"> function aaa(obj1){ obj1.textContent = "hello from main1"; } function openChild(file,window) { childWindow=open(file,window); if (childWindow.opener == null) childWindow.opener = self; childWindow.parent = self; } </script> </head> <body> <h1 id="heading">Hello test1</h1> <p> <button onclick="openChild('main2.html','main2');">Try new window open JS</button> </p> <h2>parent header</h2> <p id="para"> </p> <script> aaa(document.getElementById('para')); </script> </body> </html>

main2.html

Code: Select all: <!DOCTYPE html> <html lang="en" xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8" /> <title></title> </head> <body> <h1 id="heading">Hello test2 - without BindObjectAsync</h1> <br /> <h2>parent header</h2> <p id="para"> </p> <script> window.parent.aaa(document.getElementById('para')); </script> </body> </html>

the call to window.parent.aaa works fine when we used chrom to open main2 from main1
that what i would like to achieved.

thanks

by **magreenblatt** » Tue Dec 08, 2020 9:55 am

What OS and CEF version are you using? Where are your test files hosted? How does it behave in the cefclient sample application at the same version?

by **yanivt** » Tue Dec 08, 2020 1:41 pm

i try it on winodws 10 64bit.
i try it with CEFSharp version cef.redist.x64.86.0.24
i also try it with the cefclient.exe app version : cef_binary_85.2.11_windows32
i expect to have access to the windows.parent , but failed.

when i test the htmls sample i used a simple host server, i used live server extension from Visualstudio code.
this time its works.

the main idea is to set the window.parent of any html from outside (the opener) as you see i did after i used winodw.open js method ....
could you think on other way i can achieve that ? even programmatically ?

Thanks allot
yaniv

by **magreenblatt** » Tue Dec 08, 2020 1:44 pm

Please try uploading the files to a real server, and then compare the behavior in Google Chrome and cefclient at the same Chromium version.

by **yanivt** » Tue Dec 08, 2020 1:57 pm

woooow

i test it via cefclient.exe , this time i hosted the files on server (access them via http , and not via file on disk) , and its worked.

but what its mean ? if I want to set window.parent , do i need to consume my html from real server ?? can i set it via code ? (e.g v8context global or something like that ) ?
is there any way to bypass this ? my app consume the html from local disk.
i am dealing with porting an old application to use CEF.

Thanks for your your help
Yaniv

by **magreenblatt** » Tue Dec 08, 2020 2:16 pm

file:// URLs are all treated as unique origins so your JS does not work. You can host the files internally using HTTP as described at https://bitbucket.org/chromiumembedded/ ... t-handling

by **amaitland** » Tue Dec 08, 2020 2:25 pm

The CefSharp specific version is at https://github.com/cefsharp/CefSharp/wi ... t-handling

by **yanivt** » Wed Dec 09, 2020 9:19 am

thanks for the input , its much clear now - how to handle with files.

i also try to "pass" my parent via OnContextCreated with CefV8Context

e.g

Code: Select all: CefRefPtr<CefV8Value> pV8 = context->GetGlobal(); CefRefPtr<CefV8Value> my_kooko; my_kooko = pV8->GetValue("self");

this line cause FATAL
FATAL:v8_impl.cc(2019)] Check failed: false. invalid input parameter

Code: Select all: pV8->SetValue("kooko", my_kooko, V8_PROPERTY_ATTRIBUTE_NONE);

is there any problem to put such object on the global context ?? i tought i could use it as window object like in js.

btw :
Is there access to CefV8Context-global in CEFSharp ?

thanks

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