Implemented more desktop functions

ServerWindow API tweaks


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2782 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/server/Desktop.cpp

@@ -48,7 +48,7 @@ namespace desktop_private {
 	BLocker draglock,
 			layerlock,
 			workspacelock;
-	BList *desktop_private::screenlist=NULL;
+	BList *screenlist=NULL;
 	Screen *activescreen=NULL;
 }
 
@@ -320,24 +320,55 @@ void RemoveWindowFromDesktop(ServerWindow *win)
 {
 }
 
+/*!
+	\brief Returns the active window in the current workspace of the active screen
+	\return The active window in the current workspace of the active screen
+*/
 ServerWindow *GetActiveWindow(void)
 {
-	return NULL;
+	desktop_private::workspacelock.Lock();
+	ServerWindow *w=desktop_private::activescreen->ActiveWindow();
+	desktop_private::workspacelock.Unlock();
+
+	return w;
 }
 
+/*!
+	\brief Sets the active window in the current workspace of the active screen
+	\param win The window to activate
+	
+	If the window is not in the current workspace of the active screen, this call fails
+*/
 void SetActiveWindow(ServerWindow *win)
 {
+	desktop_private::workspacelock.Lock();
+	Workspace *w=desktop_private::activescreen->GetActiveWorkspace();
+	if(win->GetWorkspace()!=w)
+	{
+		desktop_private::workspacelock.Unlock();
+		return;
+	}
+	
+	ServerWindow *oldwin=desktop_private::activescreen->ActiveWindow();
+	ActivateWindow(oldwin,win);
+	
+	
+	desktop_private::workspacelock.Unlock();
 }
 
 /*!
 	\brief Returns the root layer for the specified workspace
 	\param workspace Index of the workspace to use
-	\param screen Index of the screen to use
+	\param screen Index of the screen to use. Currently ignored.
 	\return The root layer or NULL if there was an invalid parameter.
 */
 Layer *GetRootLayer(int32 workspace=B_CURRENT_WORKSPACE, screen_id screen=B_MAIN_SCREEN_ID)
 {
-	return NULL;
+	desktop_private::workspacelock.Lock();
+	Layer *r=desktop_private::activescreen->GetRootLayer();
+	desktop_private::workspacelock.Unlock();
+
+	return r;
 }
 
 /*!
@@ -354,6 +385,17 @@ Layer *GetRootLayer(int32 workspace=B_CURRENT_WORKSPACE, screen_id screen=B_MAIN
 */
 void set_drag_message(int32 size, int8 *flattened)
 {
+	desktop_private::draglock.Lock();
+
+	if(desktop_private::dragmessage)
+	{
+		desktop_private::draglock.Unlock();
+		return;
+	}
+	desktop_private::dragmessage=flattened;
+	desktop_private::dragmessagesize=size;
+
+	desktop_private::draglock.Unlock();
 }
 
 /*!
@@ -368,11 +410,29 @@ void set_drag_message(int32 size, int8 *flattened)
 */
 int8 *get_drag_message(int32 *size)
 {
-	return NULL;
+	int8 *ptr=NULL;
+	
+	desktop_private::draglock.Lock();
+
+	if(desktop_private::dragmessage)
+	{
+		ptr=desktop_private::dragmessage;
+		*size=desktop_private::dragmessagesize;
+	}
+	desktop_private::draglock.Unlock();
+	return ptr;
 }
 
 //! Empties current drag data and allows for new data to be assigned
 void empty_drag_message(void)
 {
+	desktop_private::draglock.Lock();
+
+	if(desktop_private::dragmessage)
+		delete desktop_private::dragmessage;
+	desktop_private::dragmessage=NULL;
+	desktop_private::dragmessagesize=0;
+
+	desktop_private::draglock.Unlock();
 }
 

src/servers/app/server/ServerWindow.cpp

@@ -90,7 +90,7 @@ ServerWindow::ServerWindow(BRect rect, const char *string, uint32 wlook,
 	if(_monitorthread!=B_NO_MORE_THREADS && _monitorthread!=B_NO_MEMORY)
 		resume_thread(_monitorthread);
 
-	_workspace=index;
+	_workspace_index=index;
 
 	AddWindowToDesktop(this,index);
 }
@@ -138,12 +138,12 @@ ServerApp *ServerWindow::GetApp(void)
 
 void ServerWindow::Show(void)
 {
-	if(_winborder)
+/*	if(_winborder)
 	{
-//	TODO: uncomment this when we have WinBorder.h	
+		_winborder->ShowLayer();
-//		_winborder->ShowLayer();
 		ActivateWindow(this);
 	}
+*/
 }
 
 void ServerWindow::Hide(void)
@@ -448,13 +448,14 @@ void ServerWindow::HandleKeyEvent(int32 code, int8 *buffer)
 {
 }
 
-void ActivateWindow(ServerWindow *win)
+void ActivateWindow(ServerWindow *oldwin,ServerWindow *newwin)
 {
-	if(active_serverwindow==win)
+/*	if(active_serverwindow==win)
 		return;
 	if(active_serverwindow)
 		active_serverwindow->SetFocus(false);
 	active_serverwindow=win;
 	if(win)
 		win->SetFocus(true);
+*/
 }

src/servers/app/server/ServerWindow.h

@@ -41,6 +41,7 @@ class ServerApp;
 class Decorator;
 class PortLink;
 class WinBorder;
+class Workspace;
 
 class ServerWindow
 {
@@ -77,13 +78,17 @@ public:
 	static void HandleKeyEvent(int32 code, int8 *buffer);
 	void Loop(void);
 	
+	int32 GetWorkspaceIndex(void) { return _workspace_index; }
+	Workspace *GetWorkspace(void) { return _workspace; }
+
 protected:	
 	friend ServerApp;
 	friend WinBorder;
 	
 	BString *_title;
 	int32 _look, _feel, _flags;
-	int32 _workspace;
+	int32 _workspace_index;
+	Workspace *_workspace;
 	bool _active;
 	
 	ServerApp *_app;
@@ -101,7 +106,7 @@ protected:
 	uint32 _token;
 };
 
-void ActivateWindow(ServerWindow *win);
+void ActivateWindow(ServerWindow *oldwin,ServerWindow *newwin);
 
 
 #endif