* new windows now get a fake B_MOUSE_MOVED message in case they are opened

directly under the mouse cursor.
* Added Desktop::ShowWindow() and HideWindow().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15238 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/Desktop.cpp

@@ -601,6 +601,44 @@ Desktop::SendBehindWindow(WindowLayer* windowLayer, WindowLayer* front)
 }
 
 
+void
+Desktop::ShowWindow(WindowLayer* window)
+{
+	if (!window->IsHidden())
+		return;
+
+	fRootLayer->ShowWindowLayer(window);
+
+	// If the mouse cursor is directly over the newly visible window,
+	// we'll send a fake mouse moved message to the window, so that
+	// it knows the mouse is over it.
+
+	BPoint where;
+	int32 buttons;
+	EventDispatcher().GetMouse(where, buttons);
+
+	int32 viewToken = B_NULL_TOKEN;
+
+	fRootLayer->Lock();
+	if (fRootLayer->WindowAt(where) == window) {
+		Layer* layer = window->LayerAt(where);
+		if (layer != NULL && layer != window)
+			viewToken = layer->ViewToken();
+	}
+	fRootLayer->Unlock();
+
+	if (viewToken != B_NULL_TOKEN)
+		EventDispatcher().SendFakeMouseMoved(window->Window()->EventTarget(), viewToken);
+}
+
+
+void
+Desktop::HideWindow(WindowLayer* window)
+{
+	fRootLayer->HideWindowLayer(window);
+}
+
+
 void
 Desktop::SetWindowWorkspaces(WindowLayer* windowLayer, uint32 workspaces)
 {

src/servers/app/Desktop.h

@@ -89,6 +89,9 @@ class Desktop : public MessageLooper, public ScreenOwner {
 		void					ActivateWindow(WindowLayer* window);
 		void					SendBehindWindow(WindowLayer* window, WindowLayer* front);
 
+		void					ShowWindow(WindowLayer* window);
+		void					HideWindow(WindowLayer* window);
+
 		void					SetWindowWorkspaces(WindowLayer* window, uint32 workspaces);
 
 		void					AddWindowLayer(WindowLayer *windowLayer);

src/servers/app/EventDispatcher.cpp

@@ -453,13 +453,27 @@ EventDispatcher::SetKeyboardFilter(EventFilter* filter)
 void
 EventDispatcher::GetMouse(BPoint& where, int32& buttons)
 {
-	//BAutolock _(this);
+	BAutolock _(this);
 
 	where = fLastCursorPosition;
 	buttons = fLastButtons;
 }
 
 
+void
+EventDispatcher::SendFakeMouseMoved(EventTarget& target, int32 viewToken)
+{
+	BAutolock _(this);
+
+	BMessage moved(B_MOUSE_MOVED);
+	moved.AddPoint("screen_where", fLastCursorPosition);
+	moved.AddInt32("buttons", fLastButtons);
+	moved.AddInt32("_view_token", viewToken);
+	
+	_SendMessage(target.Messenger(), &moved, kMouseTransitImportance);
+}
+
+
 bool
 EventDispatcher::HasCursorThread()
 {

src/servers/app/EventDispatcher.h

@@ -78,6 +78,7 @@ class EventDispatcher : public BLocker {
 		void SetKeyboardFilter(EventFilter* filter);
 
 		void GetMouse(BPoint& where, int32& buttons);
+		void SendFakeMouseMoved(EventTarget& target, int32 viewToken);
 
 		bool HasCursorThread();
 		void SetHWInterface(HWInterface* interface);

src/servers/app/RootLayer.cpp

@@ -41,7 +41,7 @@
 static const float kGoldenProportion = (sqrtf(5.0) - 1.0) / 2.0;
 #endif
 
-#define DEBUG_ROOT_LAYER
+//#define DEBUG_ROOT_LAYER
 #define APPSERVER_ROOTLAYER_SHOW_WORKSPACE_NUMBER
 
 #ifdef DEBUG_ROOT_LAYER

src/servers/app/ServerWindow.cpp

@@ -295,9 +295,9 @@ ServerWindow::Show()
 	if (fQuitting || !fWindowLayer->IsHidden())
 		return;
 
-	RootLayer* rootLayer = fWindowLayer->GetRootLayer();
-	if (rootLayer)
-		rootLayer->ShowWindowLayer(fWindowLayer);
+	// TODO: that check is just there for offscreen-windows - this should be made better
+	if (fWindowLayer->GetRootLayer() != NULL)
+		fDesktop->ShowWindow(fWindowLayer);
 
 	if (fDirectWindowData != NULL)
 		HandleDirectConnection(B_DIRECT_START | B_BUFFER_RESET);
@@ -317,9 +317,9 @@ ServerWindow::Hide()
 	if (fDirectWindowData != NULL)
 		HandleDirectConnection(B_DIRECT_STOP);
 
-	RootLayer* rootLayer = fWindowLayer->GetRootLayer();
-	if (rootLayer)
-		rootLayer->HideWindowLayer(fWindowLayer);
+	// TODO: that check is just there for offscreen-windows - this should be made better
+	if (fWindowLayer->GetRootLayer() != NULL)
+		fDesktop->HideWindow(fWindowLayer);
 }