wxGetActiveWindow is implemented as "return NULL" on OS X, while
wxWindow::FindFocus works. On Windows, the difference is in the use of
GetActiveWindow() vs. GetForegroundWindow(). A MSDN comment says:
> A system has only one active window, which GetForegroundWindow()
> returns. GetActiveWindow() seems to return the same window as
> GetForegroundWindow() if the foreground window belongs to the current
> thread. Otherwise, it always returns null, rather than the topmost
> window of the calling thread.
Since we are on the GUI thread, it shouldn't make any difference.
The concept of a "title bar" / "status bar" shouldn't be a core concept,
so remove the Host_UpdateStatusBar function, and move the code handles
whether to update the status bar or titlebar into DolphinWX.
This was used to send fake button or key events to every backend to
implement freelook. When I ported these to be based on wx events in
commit 5248211, I didn't realize that these were now unused, so I didn't
remove them. Do that now.
Fixes a bug where "Use Fullscreen" would initialize into exclusive fullscreen regardless of the borderless fullscreen setting.
Also relieves the need for the video renderer to check the borderless fullscreen setting each time.
This can happen during shutdown.
As long as we don't call event.Skip() the CFrame won't be closed yet, so even if we can't veto the shutdown will still happen in the correct order.
Also have the renderer remember its own fullscreen state. This is done to prevent a case where we exit exclusive fullscreen through the configuration and a focus shift at the same time. In this case the renderer would fail to detect that the fullscreen state was changed.
This ensures the transition from/to exclusive mode happens while the RenderFrame is fullscreen.
This prevents fullscreen loops and relieves us of having to restore the window size after we exit fullscreen.
We can't use RendererHasFocus for this purpose because of some issues
with exclusive fullscreen, and the new RendererHasFocus implementation
didn't work for non-Render to Main Window cases, since the renderer
window wasn't managed by wx.
This reverts commit ff918df889.
This changed it from "RendererHasFocus" to "UIHasFocus", which is
wrong. Specifically, it broke for non-Render to Main Window cases where
the renderer window isn't managed by wx. It also broke the pending
exclusive fullscreen support, which checks this function to determine if
the renderer is on top so it can full-screen it.
We'll add a new hook, "UIHasFocus", in the next commit.
The logic of RendererHasFocus was extremely convoluted beforehand and
was too brittle and broke in certain circumstances, like when the
GCPad window was active. Simplify it and leave a comment explaining the
new logic. This fixes the GCPad window not working when Background Input
is unchecked.
