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under cocoa a too-small static box leads to erroneous layout information, therefore...
[wxWidgets.git] / src / osx / cocoa / evtloop.mm
index d7082f1578cf4b9436de470737818cf244b45dba..dea4cc832e383088a35e0998c9d499fb3909a505 100644 (file)
 
 #ifndef WX_PRECOMP
     #include "wx/app.h"
+    #include "wx/nonownedwnd.h"
 #endif // WX_PRECOMP
 
+#include "wx/log.h"
+
 #include "wx/osx/private.h"
 
 // ============================================================================
 // wxEventLoop implementation
 // ============================================================================
 
-wxGUIEventLoop::wxGUIEventLoop()
+#if 0
+
+// in case we want to integrate this
+
+static NSUInteger CalculateNSEventMaskFromEventCategory(wxEventCategory cat)
 {
-    m_sleepTime = 0.0;
+    // the masking system doesn't really help, as only the lowlevel UI events
+    // are split in a useful way, all others are way to broad
+        
+    if ( (cat | wxEVT_CATEGORY_USER_INPUT) && (cat | (~wxEVT_CATEGORY_USER_INPUT) ) )
+        return NSAnyEventMask;
+    
+    NSUInteger mask = 0;
+
+    if ( cat | wxEVT_CATEGORY_USER_INPUT )
+    {
+        mask |=
+            NSLeftMouseDownMask        |
+            NSLeftMouseUpMask |
+            NSRightMouseDownMask |
+            NSRightMouseUpMask |
+            NSMouseMovedMask |
+            NSLeftMouseDraggedMask |
+            NSRightMouseDraggedMask |
+            NSMouseEnteredMask |
+            NSMouseExitedMask |
+            NSScrollWheelMask |
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
+            NSTabletPointMask |
+            NSTabletProximityMask |
+#endif
+            NSOtherMouseDownMask |
+            NSOtherMouseUpMask |
+            NSOtherMouseDraggedMask |
+
+            NSKeyDownMask |
+            NSKeyUpMask |
+            NSFlagsChangedMask |
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
+            NSEventMaskGesture |
+            NSEventMaskMagnify |
+            NSEventMaskSwipe |
+            NSEventMaskRotate |
+            NSEventMaskBeginGesture |
+            NSEventMaskEndGesture |
+#endif
+            0;
+    }
+    
+    if ( cat | (~wxEVT_CATEGORY_USER_INPUT) )
+    {
+        mask |= 
+            NSAppKitDefinedMask |
+            NSSystemDefinedMask |
+            NSApplicationDefinedMask |
+            NSPeriodicMask |
+            NSCursorUpdateMask;
+    }
+    
+    return mask;
 }
 
-void wxGUIEventLoop::WakeUp()
+#endif
+
+wxGUIEventLoop::wxGUIEventLoop()
 {
-    extern void wxMacWakeUp();
+    m_modalSession = nil;
+    m_dummyWindow = nil;
+}
 
-    wxMacWakeUp();
+wxGUIEventLoop::~wxGUIEventLoop()
+{
+    wxASSERT( m_modalSession == nil );
+    wxASSERT( m_dummyWindow == nil );
 }
 
+//-----------------------------------------------------------------------------
+// events dispatch and loop handling
+//-----------------------------------------------------------------------------
+
+#if 0
+
 bool wxGUIEventLoop::Pending() const
 {
+#if 0
+    // this code doesn't reliably detect pending events
+    // so better return true and have the dispatch deal with it
+    // as otherwise we end up in a tight loop when idle events are responded
+    // to by RequestMore(true)
     wxMacAutoreleasePool autoreleasepool;
-    // a pointer to the event is returned if there is one, or nil if not
+  
     return [[NSApplication sharedApplication]
             nextEventMatchingMask: NSAnyEventMask
             untilDate: nil
             inMode: NSDefaultRunLoopMode
-            dequeue: NO];
+            dequeue: NO] != nil;
+#else
+    return true;
+#endif
 }
 
 bool wxGUIEventLoop::Dispatch()
@@ -72,11 +153,22 @@ bool wxGUIEventLoop::Dispatch()
                 inMode:NSDefaultRunLoopMode
                 dequeue: YES])
     {
+        WXEVENTREF formerEvent = wxTheApp == NULL ? NULL : wxTheApp->MacGetCurrentEvent();
+        WXEVENTHANDLERCALLREF formerHandler = wxTheApp == NULL ? NULL : wxTheApp->MacGetCurrentEventHandlerCallRef();
+
+        if (wxTheApp)
+            wxTheApp->MacSetCurrentEvent(event, NULL);
         m_sleepTime = 0.0;
         [NSApp sendEvent: event];
+
+        if (wxTheApp)
+            wxTheApp->MacSetCurrentEvent(formerEvent , formerHandler);
     }
     else
     {
+        if (wxTheApp)
+            wxTheApp->ProcessPendingEvents();
+        
         if ( wxTheApp->ProcessIdle() )
             m_sleepTime = 0.0 ;
         else
@@ -92,3 +184,238 @@ bool wxGUIEventLoop::Dispatch()
 
     return true;
 }
+
+#endif
+
+int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
+{
+    wxMacAutoreleasePool autoreleasepool;
+
+    if ( m_modalSession )
+    {
+        NSInteger response = [NSApp runModalSession:(NSModalSession)m_modalSession];
+        
+        switch (response) 
+        {
+            case NSRunContinuesResponse:
+            {
+                if ( [[NSApplication sharedApplication]
+                        nextEventMatchingMask: NSAnyEventMask
+                        untilDate: nil
+                        inMode: NSDefaultRunLoopMode
+                        dequeue: NO] != nil )
+                    return 1;
+                
+                return -1;
+            }
+                
+            case NSRunStoppedResponse:
+            case NSRunAbortedResponse:
+                return -1;
+            default:
+                wxFAIL_MSG("unknown response code");
+                return -1;
+                break;
+        }
+    }
+    else 
+    {        
+        NSEvent *event = [NSApp
+                    nextEventMatchingMask:NSAnyEventMask
+                    untilDate:[NSDate dateWithTimeIntervalSinceNow: timeout/1000]
+                    inMode:NSDefaultRunLoopMode
+                    dequeue: YES];
+        
+        if ( event == nil )
+            return -1;
+
+        [NSApp sendEvent: event];
+
+        return 1;
+    }
+}
+
+void wxGUIEventLoop::DoRun()
+{
+    wxMacAutoreleasePool autoreleasepool;
+    [NSApp run];
+}
+
+void wxGUIEventLoop::DoStop()
+{
+    [NSApp stop:0];
+    // only calling stop: is not enough when called from a runloop-observer,
+    // therefore add a dummy event, to make sure the runloop gets another round
+    NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined 
+                                        location:NSMakePoint(0.0, 0.0) 
+                                   modifierFlags:0 
+                                       timestamp:0 
+                                    windowNumber:0 
+                                         context:nil
+                                         subtype:0 data1:0 data2:0]; 
+    [NSApp postEvent:event atStart:FALSE];
+}
+
+CFRunLoopRef wxGUIEventLoop::CFGetCurrentRunLoop() const
+{
+    NSRunLoop* nsloop = [NSRunLoop currentRunLoop];
+    return [nsloop getCFRunLoop];
+}
+
+
+// TODO move into a evtloop_osx.cpp
+
+wxModalEventLoop::wxModalEventLoop(wxWindow *modalWindow)
+{
+    m_modalWindow = dynamic_cast<wxNonOwnedWindow*> (modalWindow);
+    wxASSERT_MSG( m_modalWindow != NULL, "must pass in a toplevel window for modal event loop" );
+    m_modalNativeWindow = m_modalWindow->GetWXWindow();
+}
+
+wxModalEventLoop::wxModalEventLoop(WXWindow modalNativeWindow)
+{
+    m_modalWindow = NULL;
+    wxASSERT_MSG( modalNativeWindow != NULL, "must pass in a toplevel window for modal event loop" );
+    m_modalNativeWindow = modalNativeWindow;
+}
+
+// END move into a evtloop_osx.cpp
+
+void wxModalEventLoop::DoRun()
+{
+    wxMacAutoreleasePool pool;
+
+    // If the app hasn't started, flush the event queue
+    // If we don't do this, the Dock doesn't get the message that
+    // the app has started so will refuse to activate it.
+    [NSApplication sharedApplication];
+    if (![NSApp isRunning])
+    {
+        while(NSEvent *event = [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:nil inMode:NSDefaultRunLoopMode dequeue:YES])
+        {
+            [NSApp sendEvent:event];
+        }
+    }
+    
+    [NSApp runModalForWindow:m_modalNativeWindow];
+}
+
+void wxModalEventLoop::DoStop()
+{
+    [NSApp stopModal];
+}
+
+void wxGUIEventLoop::BeginModalSession( wxWindow* modalWindow )
+{
+    WXWindow nsnow = nil;
+    
+    if ( modalWindow )
+    {
+        // we must show now, otherwise beginModalSessionForWindow does it but it
+        // also would do a centering of the window before overriding all our position
+        if ( !modalWindow->IsShownOnScreen() )
+            modalWindow->Show();
+        
+        wxNonOwnedWindow* now = dynamic_cast<wxNonOwnedWindow*> (modalWindow);
+        wxASSERT_MSG( now != NULL, "must pass in a toplevel window for modal event loop" );
+        nsnow = now ? now->GetWXWindow() : nil;
+    }
+    else
+    {
+        NSRect r = NSMakeRect(10, 10, 0, 0);
+        nsnow = [NSPanel alloc];
+        [nsnow initWithContentRect:r
+                               styleMask:NSBorderlessWindowMask
+                                 backing:NSBackingStoreBuffered
+                                   defer:YES
+         ];
+        [nsnow orderOut:nil];
+        m_dummyWindow = nsnow;
+    }
+    m_modalSession = [NSApp beginModalSessionForWindow:nsnow];
+}
+
+void wxGUIEventLoop::EndModalSession()
+{
+    wxASSERT_MSG(m_modalSession != NULL, "no modal session active");
+    [NSApp endModalSession:(NSModalSession)m_modalSession];
+    m_modalSession = nil;
+    if ( m_dummyWindow )
+    {
+        [m_dummyWindow release];
+        m_dummyWindow = nil;
+    }
+}
+
+//
+// 
+//
+
+wxWindowDisabler::wxWindowDisabler(bool disable)
+{
+    m_modalEventLoop = NULL;
+    m_disabled = disable;
+    if ( disable )
+        DoDisable();
+}
+
+wxWindowDisabler::wxWindowDisabler(wxWindow *winToSkip)
+{
+    m_disabled = true;
+    DoDisable(winToSkip);
+}
+
+void wxWindowDisabler::DoDisable(wxWindow *winToSkip)
+{    
+    // remember the top level windows which were already disabled, so that we
+    // don't reenable them later
+    m_winDisabled = NULL;
+    
+    wxWindowList::compatibility_iterator node;
+    for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
+    {
+        wxWindow *winTop = node->GetData();
+        if ( winTop == winToSkip )
+            continue;
+        
+        // we don't need to disable the hidden or already disabled windows
+        if ( winTop->IsEnabled() && winTop->IsShown() )
+        {
+            winTop->Disable();
+        }
+        else
+        {
+            if ( !m_winDisabled )
+            {
+                m_winDisabled = new wxWindowList;
+            }
+            
+            m_winDisabled->Append(winTop);
+        }
+    }
+    
+    m_modalEventLoop = (wxEventLoop*)wxEventLoopBase::GetActive();
+    m_modalEventLoop->BeginModalSession(winToSkip);
+}
+
+wxWindowDisabler::~wxWindowDisabler()
+{
+    if ( !m_disabled )
+        return;
+    
+    m_modalEventLoop->EndModalSession();
+    
+    wxWindowList::compatibility_iterator node;
+    for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
+    {
+        wxWindow *winTop = node->GetData();
+        if ( !m_winDisabled || !m_winDisabled->Find(winTop) )
+        {
+            winTop->Enable();
+        }
+        //else: had been already disabled, don't reenable
+    }
+    
+    delete m_winDisabled;
+}
+