OnBeforePopup GMail attachment

[ScottV]

When opening an attachment in GMail, clicking the print button opens a popup window which calls "OnBeforePopup" but the "target_url" argument is NULL.

In the CEF Client application a new windows is opened to the correct URL, but we need to capture the URL so we can open our own window.

Is there any way to capture the URL in the "OnBeforePopup" function when printing attachments from GMail?

Thank you,
Scott

[magreenblatt]

What OS and CEF3 version?

[ScottV]

CEF OS: Windows 32bit

Tested builds -

CEF3 DEV: 2014-07-01 3.2042.1752
CEF3 1916: 2014-06-17 3.1916.1749
CEF3 1750: 2014-06-11 3.1750.1738
CEF3 1650: 2014-03-14 3.1650.1639

Compiled with Visual Studio 2013 Professional on Windows 7 64 bit.

--Scott

[magreenblatt]

You can create the popup initially hidden and wait for the call to OnAfterCreated before deciding whether to show or close it. See viewtopic.php?f=6&t=10966.

[ScottV]

Thank you, I will give it a try.

--Scott

[ScottV]

Thank you magreenblatt, that did the trick.

As a follow up here is what I did.

Because my CEF Client Handler is derived from "CefClient" in the "OnBeforePopup" function in the handler class I set the "client" to the handler (this).

Code: Select all

// ClientHandler implementation.
class ClientHandler : public CefClient,
        public CefContextMenuHandler,
        public CefDisplayHandler,
        public CefDownloadHandler,
        public CefLifeSpanHandler,
        public CefLoadHandler,
        public CefRequestHandler
{
...
}


Code: Select all

bool ClientHandler::OnBeforePopup(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame, const CefString& target_url, const CefString& target_frame_name, const CefPopupFeatures& popupFeatures, CefWindowInfo& windowInfo, CefRefPtr<CefClient>& client, CefBrowserSettings& settings, bool* no_javascript_access)
{
        if(browser->GetHost()->IsWindowRenderingDisabled())
        {
                // Cancel popups in off-screen rendering mode.
                return true;
        }

        // set client to this calls to receive the "OnAfterCreate" calls
        client = this;

        // The frame window will be the parent of the browser window
        HWND hWindow = GetParent( browser->GetHost()->GetWindowHandle() );

        // send message
        LPCTSTR lpszURL(target_url.c_str());
        if( ::SendMessage( hWindow, WM_APP_CEF_WINDOW_CHECK, (WPARAM)&popupFeatures, (LPARAM)lpszURL) == S_FALSE )
                return true;

        // send message
        if( ::SendMessage( hWindow, WM_APP_CEF_NEW_WINDOW, (WPARAM)&popupFeatures, (LPARAM)&windowInfo) == S_FALSE )
                return true;

        // call parent
        return CefLifeSpanHandler::OnBeforePopup(browser, frame, target_url, target_frame_name, popupFeatures, windowInfo, client, settings, no_javascript_access);
}

I have updated the sample CEF MFC App to reflect this.
https://code.google.com/p/cef-mfc/

--Scott