streamlining OSX event support third step, using platform specific native run methods for event loops

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63697 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/evtloop.h

@@ -185,7 +185,7 @@ protected:
     wxDECLARE_NO_COPY_CLASS(wxEventLoopBase);
 };
 
-#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXDFB__) || defined(__UNIX__)
+#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXDFB__) || (defined(__UNIX__) && !defined(__WXOSX__))
 
 // this class can be used to implement a standard event loop logic using
 // Pending() and Dispatch()
@@ -318,7 +318,7 @@ protected:
 
 inline bool wxEventLoopBase::IsRunning() const { return GetActive() == this; }
 
-#if wxUSE_GUI
+#if wxUSE_GUI && !defined(__WXOSX__)
 // ----------------------------------------------------------------------------
 // wxModalEventLoop
 // ----------------------------------------------------------------------------

include/wx/osx/carbon/evtloop.h

@@ -23,6 +23,9 @@ public:
 protected:
     virtual int DoDispatchTimeout(unsigned long timeout);
 
+    virtual void DoRun();
+    
+    virtual void DoStop();
 };
 
 #endif // _WX_MAC_CARBON_EVTLOOP_H_

include/wx/osx/cocoa/evtloop.h

@@ -19,6 +19,9 @@ public:
 protected:
     virtual int DoDispatchTimeout(unsigned long timeout);
     
+    virtual void DoRun();
+
+    virtual void DoStop();
 };
 
 #endif // _WX_OSX_COCOA_EVTLOOP_H_

include/wx/osx/evtloop.h

@@ -60,6 +60,10 @@ protected:
 
     virtual int DoDispatchTimeout(unsigned long timeout);
     
+    virtual void DoRun();
+
+    virtual void DoStop();
+    
     // should we exit the loop?
     bool m_shouldExit;
 
@@ -75,15 +79,33 @@ private:
     //
     // returns the return value of DoDispatchTimeout()
     int DoProcessEvents();
-
 };
 
 #if wxUSE_GUI
-    #ifdef __WXOSX_COCOA__
-        #include "wx/osx/cocoa/evtloop.h"
-    #else
-        #include "wx/osx/carbon/evtloop.h"
-    #endif
+
+#ifdef __WXOSX_COCOA__
+    #include "wx/osx/cocoa/evtloop.h"
+#else
+    #include "wx/osx/carbon/evtloop.h"
+#endif
+
+class WXDLLIMPEXP_FWD_CORE wxWindow;
+class WXDLLIMPEXP_FWD_CORE wxNonOwnedWindow;
+
+class WXDLLIMPEXP_CORE wxModalEventLoop : public wxGUIEventLoop
+{
+public:
+    wxModalEventLoop(wxWindow *winModal);
+    
+protected:
+    virtual void DoRun();
+    
+    virtual void DoStop();
+    
+    // (in case) the modal window for this event loop
+    wxNonOwnedWindow* m_modalWindow;
+};
+
 #endif // wxUSE_GUI
 
 #endif // _WX_OSX_EVTLOOP_H_

include/wx/unix/evtloop.h

@@ -25,7 +25,12 @@ namespace wxPrivate
     class PipeIOHandler;
 }
 
-class WXDLLIMPEXP_BASE wxConsoleEventLoop : public wxEventLoopManual
+class WXDLLIMPEXP_BASE wxConsoleEventLoop 
+#ifdef __WXOSX__
+: public wxEventLoopBase
+#else
+: public wxEventLoopManual
+#endif
 {
 public:
     // initialize the event loop, use IsOk() to check if we were successful

src/common/evtloopcmn.cpp

@@ -82,7 +82,7 @@ bool wxEventLoopBase::Yield(bool onlyIfNeeded)
 }
 
 // wxEventLoopManual is unused in the other ports
-#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXDFB__) || (defined(__UNIX__) && wxUSE_BASE)
+#if defined(__WXMSW__) || defined(__WXDFB__) || ( ( defined(__UNIX__) && !defined(__WXOSX__) ) && wxUSE_BASE)
 
 // ============================================================================
 // wxEventLoopManual implementation

src/osx/carbon/evtloop.cpp

@@ -55,6 +55,8 @@ static void DispatchAndReleaseEvent(EventRef theEvent)
 
 int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
 {
+    wxMacAutoreleasePool autoreleasepool;
+    
     EventRef event;
     OSStatus status = ReceiveNextEvent(0, NULL, timeout/1000, true, &event);
     switch ( status )
@@ -76,3 +78,56 @@ int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
             return 1;
     }
 }
+
+void wxGUIEventLoop::DoRun()
+{
+    wxMacAutoreleasePool autoreleasepool;
+    RunApplicationEventLoop();
+}
+
+void wxGUIEventLoop::DoStop()
+{
+    QuitApplicationEventLoop();
+}
+
+void wxModalEventLoop::DoRun()
+{
+    wxMacAutoreleasePool autoreleasepool;
+    WindowRef windowRef = m_modalWindow->GetWXWindow();
+
+    WindowGroupRef windowGroup = NULL;
+    WindowGroupRef formerParentGroup = NULL;
+    bool resetGroupParent = false;
+    
+    // make sure modal dialogs are in the right layer so that they are not covered
+    
+    if ( m_modalWindow->GetParent() == NULL )
+    {
+        windowGroup = GetWindowGroup(windowRef) ;
+        if ( windowGroup != GetWindowGroupOfClass( kMovableModalWindowClass ) )
+        {
+            formerParentGroup = GetWindowGroupParent( windowGroup );
+            SetWindowGroupParent( windowGroup, GetWindowGroupOfClass( kMovableModalWindowClass ) );
+            resetGroupParent = true;
+        }
+    }
+
+    m_modalWindow->SetFocus();
+    
+    RunAppModalLoopForWindow(windowRef);
+
+    if ( resetGroupParent )
+    {
+        SetWindowGroupParent( windowGroup , formerParentGroup );
+    }
+
+}
+
+void wxModalEventLoop::DoStop()
+{
+    wxMacAutoreleasePool autoreleasepool;
+    WindowRef theWindow = m_modalWindow->GetWXWindow();
+    QuitAppModalLoopForWindow(theWindow);
+}
+
+

src/osx/cocoa/evtloop.mm

@@ -162,3 +162,40 @@ int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
 
     return 1;
 }
+
+void wxGUIEventLoop::DoRun()
+{
+    wxMacAutoreleasePool autoreleasepool;
+    [NSApp run];
+}
+
+void wxGUIEventLoop::DoStop()
+{
+    [NSApp stop:0];
+}
+
+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];
+        }
+    }
+    
+    NSWindow* theWindow = m_modalWindow->GetWXWindow();
+    [NSApp runModalForWindow:theWindow];
+}
+
+void wxModalEventLoop::DoStop()
+{
+    [NSApp stopModal];
+}
+

src/osx/core/evtloop_cf.cpp

@@ -185,6 +185,7 @@ void wxCFEventLoop::ObserverCallBack(CFRunLoopObserverRef observer, int activity
 wxCFEventLoop::wxCFEventLoop()
 {
     m_shouldExit = false;
+    
     CFRunLoopObserverContext ctxt;
     bzero( &ctxt, sizeof(ctxt) );
     ctxt.info = this;
@@ -272,8 +273,6 @@ int wxCFEventLoop::DispatchTimeout(unsigned long timeout)
     if ( !wxTheApp )
         return 0;
 
-    wxMacAutoreleasePool autoreleasepool;
-    
     int status = DoDispatchTimeout(timeout);
     
     switch( status )
@@ -313,6 +312,32 @@ int wxCFEventLoop::DoDispatchTimeout(unsigned long timeout)
     return 1;
 }
 
+void wxCFEventLoop::DoRun()
+{
+    for ( ;; )
+    {
+        // generate and process idle events for as long as we don't
+        // have anything else to do
+        DoProcessEvents();
+        
+        // if the "should exit" flag is set, the loop should terminate
+        // but not before processing any remaining messages so while
+        // Pending() returns true, do process them
+        if ( m_shouldExit )
+        {
+            while ( DoProcessEvents() == 1 )
+                ;
+            
+            break;
+        }
+    }
+}
+
+void wxCFEventLoop::DoStop()
+{
+    CFRunLoopStop(CFGetCurrentRunLoop());
+}
+
 // enters a loop calling OnNextIteration(), Pending() and Dispatch() and
 // terminating when Exit() is called
 int wxCFEventLoop::Run()
@@ -336,23 +361,8 @@ int wxCFEventLoop::Run()
         try
         {
 #endif // wxUSE_EXCEPTIONS
-            for ( ;; )
-            {
-                // generate and process idle events for as long as we don't
-                // have anything else to do
-                DoProcessEvents();
             
-                // if the "should exit" flag is set, the loop should terminate
-                // but not before processing any remaining messages so while
-                // Pending() returns true, do process them
-                if ( m_shouldExit )
-                {
-                    while ( DoProcessEvents() == 1 )
-                        ;
-                    
-                    break;
-                }
-            }
+            DoRun();
             
 #if wxUSE_EXCEPTIONS
             // exit the outer loop as well
@@ -390,6 +400,29 @@ void wxCFEventLoop::Exit(int rc)
 {
     m_exitcode = rc;
     m_shouldExit = true;
+    DoStop();
 }
 
+#if wxUSE_GUI
 
+wxModalEventLoop::wxModalEventLoop(wxWindow *winModal)
+{
+    m_modalWindow = dynamic_cast<wxNonOwnedWindow*> (winModal);
+    wxASSERT_MSG( m_modalWindow != NULL, "must pass in a toplevel window for modal event loop" );
+}
+
+#ifdef __WXOSX_IPHONE__
+
+void wxModalEventLoop::DoRun()
+{
+    // presentModalViewController:animated:
+}
+
+void wxModalEventLoop::DoStop()
+{
+    // (void)dismissModalViewControllerAnimated:(BOOL)animated
+}
+
+#endif // wxUSE_GUI
+
+#endif

src/osx/iphone/evtloop.mm

@@ -75,26 +75,43 @@ static int CalculateUIEventMaskFromEventCategory(wxEventCategory cat)
 }
 */
 
+@interface wxAppDelegate : NSObject <UIApplicationDelegate> {
+}
+
+@end
+
+@implementation wxAppDelegate
+
+- (void)applicationDidFinishLaunching:(UIApplication *)application {	
+	wxTheApp->OnInit();
+}
+
+- (void)applicationWillTerminate:(UIApplication *)application { 
+    wxCloseEvent event;
+    wxTheApp->OnEndSession(event);
+}
+
+- (void)dealloc {
+	[super dealloc];
+}
+
+@end
+
 wxGUIEventLoop::wxGUIEventLoop()
 {
-    m_sleepTime = 0.0;
 }
 
-int wxGUIEventLoop::DoDispatchTimeout(unsigned long timeout)
+void wxGUIEventLoop::DoRun()
 {
-    wxMacAutoreleasePool autoreleasepool;
-
-/*
-    UIEvent *event = [[UIApplication sharedApplication]
-                nextEventMatchingMask:NSAnyEventMask
-                untilDate:[NSDate dateWithTimeIntervalSinceNow: timeout/1000]
-                inMode:NSDefaultRunLoopMode
-                dequeue: YES];
-
-    if ( event == nil )
-        return -1;
-
-    [NSApp sendEvent: event];
-*/
-    return 1;
+    if ( IsMain() )
+    {
+        wxMacAutoreleasePool pool;
+        const char* appname = "app";
+        UIApplicationMain( 1, (char**) &appname, nil, @"wxAppDelegate" );
+    }
+    else 
+    {
+        wxCFEventLoop::DoRun();
+    }
 }
+