* Added a separate focus list that will contain all windows in the order

of the last focus.
* When choosing a new focus window, this list is now used to find the
  new focus window instead of just choosing the next window in the
  workspace list.
* With the normal mode mouse, this shouldn't change anything, but with
  focus follows mouse turned on, this will behave much better if you 
  don't actually move the mouse - and it also fixes bug #1886.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24234 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/Desktop.cpp

@@ -316,6 +316,7 @@ Desktop::Desktop(uid_t userID)
 	fCurrentWorkspace(0),
 	fAllWindows(kAllWindowList),
 	fSubsetWindows(kSubsetList),
+	fFocusList(kFocusList),
 	fWorkspacesLayer(NULL),
 	fActiveScreen(NULL),
 
@@ -1147,7 +1148,7 @@ Desktop::_UpdateFloating(int32 previousWorkspace, int32 nextWorkspace,
 			_HideWindow(floating);
 
 			if (FocusWindow() == floating)
-				SetFocusWindow(_CurrentWindows().LastWindow());
+				SetFocusWindow();
 		}
 	}
 }
@@ -1324,21 +1325,16 @@ Desktop::SetFocusWindow(WindowLayer* focus)
 		return;
 	}
 
-	if (focus == NULL || hasModal) {
-		focus = FrontWindow();
-		if (focus == NULL) {
-			// there might be no front window in case of only a single
-			// window with B_FLOATING_ALL_WINDOW_FEEL
-			focus = _CurrentWindows().LastWindow();
-		}
-	}
+	if (focus == NULL || hasModal)
+		focus = fFocusList.LastWindow();
 
 	// make sure no window is chosen that doesn't want focus or cannot have it
 	while (focus != NULL
-		&& ((focus->Flags() & B_AVOID_FOCUS) != 0
+		&& (!focus->InWorkspace(fCurrentWorkspace)
+			|| (focus->Flags() & B_AVOID_FOCUS) != 0
 			|| _WindowHasModal(focus)
 			|| focus->IsHidden())) {
-		focus = focus->PreviousWindow(fCurrentWorkspace);
+		focus = focus->PreviousWindow(kFocusList);
 	}
 
 	if (fFocus == focus) {
@@ -1360,6 +1356,10 @@ Desktop::SetFocusWindow(WindowLayer* focus)
 	if (fFocus != NULL) {
 		fFocus->SetFocus(true);
 		newActiveApp = fFocus->ServerWindow()->App()->ClientTeam();
+
+		// move current focus to the end of the focus list
+		fFocusList.RemoveWindow(fFocus);
+		fFocusList.AddWindow(fFocus);
 	}
 
 	if (newActiveApp == -1) {
@@ -1571,7 +1571,7 @@ Desktop::SendWindowBehind(WindowLayer* window, WindowLayer* behindOf)
 	MarkDirty(dirty);
 
 	_UpdateFronts();
-	SetFocusWindow(_CurrentWindows().LastWindow());
+	SetFocusWindow();
 	_WindowChanged(window);
 
 	UnlockAllWindows();
@@ -1587,6 +1587,7 @@ Desktop::ShowWindow(WindowLayer* window)
 	LockAllWindows();
 
 	window->SetHidden(false);
+	fFocusList.AddWindow(window);
 
 	if (window->InWorkspace(fCurrentWorkspace)) {
 		_ShowWindow(window, true);
@@ -1625,6 +1626,8 @@ Desktop::HideWindow(WindowLayer* window)
 		return;
 
 	window->SetHidden(true);
+	fFocusList.RemoveWindow(window);
+
 	if (fMouseEventWindow == window)
 		fMouseEventWindow = NULL;
 
@@ -1634,7 +1637,7 @@ Desktop::HideWindow(WindowLayer* window)
 		_UpdateFronts();
 
 		if (FocusWindow() == window)
-			SetFocusWindow(_CurrentWindows().LastWindow());
+			SetFocusWindow();
 	} else
 		_WindowChanged(window);
 
@@ -2157,7 +2160,7 @@ Desktop::SetWindowFeel(WindowLayer *window, window_feel newFeel)
 	_UpdateFronts();
 
 	if (window == FocusWindow() && !window->IsVisible())
-		SetFocusWindow(_CurrentWindows().LastWindow());
+		SetFocusWindow();
 
 	UnlockAllWindows();
 }

src/servers/app/Desktop.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2006, Haiku.
+ * Copyright 2001-2008, Haiku.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -153,7 +153,7 @@ class Desktop : public MessageLooper, public ScreenOwner {
 		void					SetViewUnderMouse(const WindowLayer* window, int32 viewToken);
 		int32					ViewUnderMouse(const WindowLayer* window);
 
-		void					SetFocusWindow(WindowLayer* window);
+		void					SetFocusWindow(WindowLayer* window = NULL);
 		EventTarget*			KeyboardEventTarget();
 
 		WindowLayer*			FindWindowLayerByClientToken(int32 token, team_id teamID);
@@ -253,6 +253,7 @@ class Desktop : public MessageLooper, public ScreenOwner {
 
 		WindowList				fAllWindows;
 		WindowList				fSubsetWindows;
+		WindowList				fFocusList;
 		WorkspacesLayer*		fWorkspacesLayer;
 
 		Screen*					fActiveScreen;

src/servers/app/WindowList.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, Haiku, Inc.
+ * Copyright (c) 2005-2008, Haiku, Inc.
  * Distributed under the terms of the MIT license.
  *
  * Authors:
@@ -41,6 +41,7 @@ class WindowList {
 enum window_lists {
 	kAllWindowList = 32,
 	kSubsetList,
+	kFocusList,
 	kWorkingList,
 
 	kListCount