surpress activate,zorder change

[david]

normally, a window embeds a browser in MDI enviroment or mutiple popup windows.
In this case, controlling zorder of windows is important.

when a window embedding cef is navigating, the cef's inner window implementation make the window activating and top zorder.
so, zorders of windows are disordered.

so, It is very useful to supress activate,zorder change of embedding window by cef's setting.

[magreenblatt]

When a window is given keyboard focus I believe it must also be activated. So I'm not sure what you're requesting. Can you provide a detailed example of the current behavior and how you think it should behave instead?

[david]

window A,B,C have ws_popup style.
--------------------------------
Figure 1 environment

current zorder : A > B > C
current activated window : A
A has a focus.
---------------------------------
A is the working window of some task.
User just wants to see information in C as a bakground window without activation , wants to keep the focus in A , and wants to keep zorder of windows.

In Figure 1 environment, Programatically A send a navigation command to C' cef embed to show information related with data in A.

C' cef embed navigated and it's implementation makes C window activate and be top zorder.
eventually C takes the focus that A had.
but user want to keep input focus in A.
See Figure 2.

---------------------------------
Figure 2 environment

current zorder: C > A > B
current activated window : C
C has a focus.
---------------------------------


CEF embed window is like a control.
control is used in various enviroments.
control' behavior must be predictable.

so, CEF embed window should have the ability that programatically prevent activation and zoder change of container window ( C widnow) by optional on/off flag.

ex)
when call setwindowpos , it check the option.
if activation,zorder option is off, call setwindowpos with SWP_NOACTIVATE , SWP_NOZORDER

[magreenblatt]

Thanks for the explanation. Did you try returning true from CefFocusHandler::OnSetFocus()?

[david]

Great ... It works.
Thank you for your insightful implementation.

cef could control focus change from javascript.

cef could intercept focus change by flash?
Because cef is like a control. I think cef should control all focus changes including plugin.

------------------------------------------------------------------------------------------------
another issue : cefclient example' popup crash.

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(1) click a link -> cef make a popup
repeat (1) several times.

click close button of cefclient example with popup windows aliving.
It crashs occasionally.
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This crash came from Popup window.
I think cef example don't control the life of popup wndows.

Because popup window don't have the owner window,
when cefclient window is close, Windows don't close the popup winows automatically.
so, when exit program, some object should close it manually.

current my code:
ClientHandler has vector<HWND> for popup window
OnAfterCreated : if popup window, add hwnd to vector.
OnBeforeClose: if popup window, remvoe hwnd from vector.
closeBrowser: close all popup window in vector berfore closing main browser window.

if my code is right, cef sould have some graceful closing mechanism of popup window.