src/gui/kernel/qcocoaapplicationdelegate_mac.mm
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
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    40 ****************************************************************************/
       
    41 
       
    42 /****************************************************************************
       
    43  **
       
    44  ** Copyright (c) 2007-2008, Apple, Inc.
       
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    48  ** Redistribution and use in source and binary forms, with or without
       
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    75 
       
    76 #include "qmacdefines_mac.h"
       
    77 #ifdef QT_MAC_USE_COCOA
       
    78 
       
    79 #import <private/qcocoaapplicationdelegate_mac_p.h>
       
    80 #import <private/qcocoamenuloader_mac_p.h>
       
    81 #include <private/qapplication_p.h>
       
    82 #include <private/qt_mac_p.h>
       
    83 #include <private/qt_cocoa_helpers_mac_p.h>
       
    84 #include <private/qdesktopwidget_mac_p.h>
       
    85 #include <qevent.h>
       
    86 #include <qapplication.h>
       
    87 
       
    88 QT_BEGIN_NAMESPACE
       
    89 extern void onApplicationChangedActivation(bool); // qapplication_mac.mm
       
    90 extern void qt_release_apple_event_handler(); //qapplication_mac.mm
       
    91 QT_END_NAMESPACE
       
    92 
       
    93 QT_FORWARD_DECLARE_CLASS(QDesktopWidgetImplementation)
       
    94 QT_USE_NAMESPACE
       
    95 
       
    96 static QT_MANGLE_NAMESPACE(QCocoaApplicationDelegate) *sharedCocoaApplicationDelegate = nil;
       
    97 
       
    98 static void cleanupCocoaApplicationDelegate()
       
    99 {
       
   100     [sharedCocoaApplicationDelegate release];
       
   101 }
       
   102 
       
   103 @implementation QT_MANGLE_NAMESPACE(QCocoaApplicationDelegate)
       
   104 
       
   105 - (id)init
       
   106 {
       
   107     self = [super init];
       
   108     if (self)
       
   109         inLaunch = true;
       
   110     return self;
       
   111 }
       
   112 
       
   113 - (void)dealloc
       
   114 {
       
   115     sharedCocoaApplicationDelegate = nil;
       
   116     [dockMenu release];
       
   117     [qtMenuLoader release];
       
   118     if (reflectionDelegate) {
       
   119         [NSApp setDelegate:reflectionDelegate];
       
   120         [reflectionDelegate release];
       
   121     }
       
   122     [super dealloc];
       
   123 }
       
   124 
       
   125 + (id)allocWithZone:(NSZone *)zone
       
   126 {
       
   127     @synchronized(self) {
       
   128         if (sharedCocoaApplicationDelegate == nil) {
       
   129             sharedCocoaApplicationDelegate = [super allocWithZone:zone];
       
   130             return sharedCocoaApplicationDelegate;
       
   131             qAddPostRoutine(cleanupCocoaApplicationDelegate);
       
   132         }
       
   133     }
       
   134     return nil;
       
   135 }
       
   136 
       
   137 + (QT_MANGLE_NAMESPACE(QCocoaApplicationDelegate)*)sharedDelegate
       
   138 {
       
   139     @synchronized(self) {
       
   140         if (sharedCocoaApplicationDelegate == nil)
       
   141             [[self alloc] init];
       
   142     }
       
   143     return [[sharedCocoaApplicationDelegate retain] autorelease];
       
   144 }
       
   145 
       
   146 - (void)setDockMenu:(NSMenu*)newMenu
       
   147 {
       
   148     [newMenu retain];
       
   149     [dockMenu release];
       
   150     dockMenu = newMenu;
       
   151 }
       
   152 
       
   153 - (NSMenu *)applicationDockMenu
       
   154 {
       
   155     return [[dockMenu retain] autorelease];
       
   156 }
       
   157 
       
   158 - (QApplicationPrivate *)qAppPrivate
       
   159 {
       
   160     return qtPrivate;
       
   161 }
       
   162 
       
   163 - (void)setQtPrivate:(QApplicationPrivate *)value
       
   164 {
       
   165     qtPrivate = value;
       
   166 }
       
   167 
       
   168 - (void)setMenuLoader:(QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *)menuLoader
       
   169 {
       
   170     [menuLoader retain];
       
   171     [qtMenuLoader release];
       
   172     qtMenuLoader = menuLoader;
       
   173 }
       
   174 
       
   175 - (QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *)menuLoader;
       
   176 {
       
   177     return [[qtMenuLoader retain] autorelease];
       
   178 }
       
   179 
       
   180 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
       
   181 {
       
   182     Q_UNUSED(sender);
       
   183     // The reflection delegate gets precedence
       
   184     if (reflectionDelegate
       
   185         && [reflectionDelegate respondsToSelector:@selector(applicationShouldTerminate:)]) {
       
   186         return [reflectionDelegate applicationShouldTerminate:sender];
       
   187     }
       
   188 
       
   189     if (qtPrivate->canQuit()) {
       
   190         if (!startedQuit) {
       
   191             startedQuit = true;
       
   192             qAppInstance()->quit();
       
   193             startedQuit = false;
       
   194         }
       
   195     }
       
   196 
       
   197     if (qtPrivate->threadData->eventLoops.size() == 0) {
       
   198         // INVARIANT: No event loop is executing. This probably
       
   199         // means that Qt is used as a plugin, or as a part of a native
       
   200         // Cocoa application. In any case it should be fine to 
       
   201         // terminate now:
       
   202         return NSTerminateNow;
       
   203     } else {
       
   204         // Prevent Cocoa from terminating the application, since this simply
       
   205         // exits the program whithout allowing QApplication::exec() to return.
       
   206         // The call to QApplication::quit() above will instead quit the
       
   207         // application from the Qt side.
       
   208         return NSTerminateCancel;
       
   209     }
       
   210 }
       
   211 
       
   212 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification
       
   213 {
       
   214     Q_UNUSED(aNotification);
       
   215     inLaunch = false;
       
   216     qt_release_apple_event_handler();
       
   217 }
       
   218 
       
   219 - (void)application:(NSApplication *)sender openFiles:(NSArray *)filenames
       
   220 {
       
   221     for (NSString *fileName in filenames) {
       
   222         QString qtFileName = qt_mac_NSStringToQString(fileName);
       
   223         if (inLaunch) {
       
   224             // We need to be careful because Cocoa will be nice enough to take
       
   225             // command line arguments and send them to us as events. Given the history
       
   226             // of Qt Applications, this will result in behavior people don't want, as
       
   227             // they might be doing the opening themselves with the command line parsing.
       
   228             if (qApp->arguments().contains(qtFileName))
       
   229                 continue;
       
   230         }
       
   231         QFileOpenEvent foe(qtFileName);
       
   232         qt_sendSpontaneousEvent(qAppInstance(), &foe);
       
   233     }
       
   234 
       
   235     if (reflectionDelegate &&
       
   236         [reflectionDelegate respondsToSelector:@selector(application:openFiles:)])
       
   237         [reflectionDelegate application:sender openFiles:filenames];
       
   238 }
       
   239 
       
   240 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
       
   241 {
       
   242     // If we have a reflection delegate, that will get to call the shots.
       
   243     if (reflectionDelegate
       
   244         && [reflectionDelegate respondsToSelector:
       
   245                             @selector(applicationShouldTerminateAfterLastWindowClosed:)])
       
   246         return [reflectionDelegate applicationShouldTerminateAfterLastWindowClosed:sender];
       
   247     return NO; // Someday qApp->quitOnLastWindowClosed(); when QApp and NSApp work closer together.
       
   248 }
       
   249 
       
   250 
       
   251 - (void)applicationDidBecomeActive:(NSNotification *)notification
       
   252 {
       
   253     if (reflectionDelegate
       
   254         && [reflectionDelegate respondsToSelector:@selector(applicationDidBecomeActive:)])
       
   255         [reflectionDelegate applicationDidBecomeActive:notification];
       
   256     onApplicationChangedActivation(true);
       
   257 }
       
   258 
       
   259 - (void)applicationDidResignActive:(NSNotification *)notification;
       
   260 {
       
   261     if (reflectionDelegate
       
   262         && [reflectionDelegate respondsToSelector:@selector(applicationDidResignActive:)])
       
   263         [reflectionDelegate applicationDidResignActive:notification];
       
   264     onApplicationChangedActivation(false);
       
   265 }
       
   266 
       
   267 - (void)applicationDidChangeScreenParameters:(NSNotification *)notification
       
   268 {
       
   269     Q_UNUSED(notification);
       
   270     QDesktopWidgetImplementation::instance()->onResize();
       
   271 }
       
   272 
       
   273 - (void)setReflectionDelegate:(NSObject <NSApplicationDelegate> *)oldDelegate
       
   274 {
       
   275     [oldDelegate retain];
       
   276     [reflectionDelegate release];
       
   277     reflectionDelegate = oldDelegate;
       
   278 }
       
   279 
       
   280 - (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector
       
   281 {
       
   282     NSMethodSignature *result = [super methodSignatureForSelector:aSelector];
       
   283     if (!result && reflectionDelegate) {
       
   284         result = [reflectionDelegate methodSignatureForSelector:aSelector];
       
   285     }
       
   286     return result;
       
   287 }
       
   288 
       
   289 - (BOOL)respondsToSelector:(SEL)aSelector
       
   290 {
       
   291     BOOL result = [super respondsToSelector:aSelector];
       
   292     if (!result && reflectionDelegate)
       
   293         result = [reflectionDelegate respondsToSelector:aSelector];
       
   294     return result;
       
   295 }
       
   296 
       
   297 - (void)forwardInvocation:(NSInvocation *)invocation
       
   298 {
       
   299     SEL invocationSelector = [invocation selector];
       
   300     if (reflectionDelegate && [reflectionDelegate respondsToSelector:invocationSelector])
       
   301         [invocation invokeWithTarget:reflectionDelegate];
       
   302     else
       
   303         [self doesNotRecognizeSelector:invocationSelector];
       
   304 }
       
   305 
       
   306 @end
       
   307 #endif