util/src/gui/kernel/qcocoaapplicationdelegate_mac.mm
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
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    40 ****************************************************************************/
       
    41 
       
    42 /****************************************************************************
       
    43  **
       
    44  ** Copyright (c) 2007-2008, Apple, Inc.
       
    45  **
       
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    47  **
       
    48  ** Redistribution and use in source and binary forms, with or without
       
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    74  ****************************************************************************/
       
    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 <qurl.h>
       
    87 #include <qapplication.h>
       
    88 
       
    89 QT_BEGIN_NAMESPACE
       
    90 extern void onApplicationChangedActivation(bool); // qapplication_mac.mm
       
    91 extern void qt_release_apple_event_handler(); //qapplication_mac.mm
       
    92 QT_END_NAMESPACE
       
    93 
       
    94 QT_FORWARD_DECLARE_CLASS(QDesktopWidgetImplementation)
       
    95 QT_USE_NAMESPACE
       
    96 
       
    97 static QT_MANGLE_NAMESPACE(QCocoaApplicationDelegate) *sharedCocoaApplicationDelegate = nil;
       
    98 
       
    99 static void cleanupCocoaApplicationDelegate()
       
   100 {
       
   101     [sharedCocoaApplicationDelegate release];
       
   102 }
       
   103 
       
   104 @implementation QT_MANGLE_NAMESPACE(QCocoaApplicationDelegate)
       
   105 
       
   106 - (id)init
       
   107 {
       
   108     self = [super init];
       
   109     if (self)
       
   110         inLaunch = true;
       
   111     return self;
       
   112 }
       
   113 
       
   114 - (void)dealloc
       
   115 {
       
   116     sharedCocoaApplicationDelegate = nil;
       
   117     [dockMenu release];
       
   118     [qtMenuLoader release];
       
   119     if (reflectionDelegate) {
       
   120         [NSApp setDelegate:reflectionDelegate];
       
   121         [reflectionDelegate release];
       
   122     }
       
   123     [super dealloc];
       
   124 }
       
   125 
       
   126 + (id)allocWithZone:(NSZone *)zone
       
   127 {
       
   128     @synchronized(self) {
       
   129         if (sharedCocoaApplicationDelegate == nil) {
       
   130             sharedCocoaApplicationDelegate = [super allocWithZone:zone];
       
   131             return sharedCocoaApplicationDelegate;
       
   132             qAddPostRoutine(cleanupCocoaApplicationDelegate);
       
   133         }
       
   134     }
       
   135     return nil;
       
   136 }
       
   137 
       
   138 + (QT_MANGLE_NAMESPACE(QCocoaApplicationDelegate)*)sharedDelegate
       
   139 {
       
   140     @synchronized(self) {
       
   141         if (sharedCocoaApplicationDelegate == nil)
       
   142             [[self alloc] init];
       
   143     }
       
   144     return [[sharedCocoaApplicationDelegate retain] autorelease];
       
   145 }
       
   146 
       
   147 - (void)setDockMenu:(NSMenu*)newMenu
       
   148 {
       
   149     [newMenu retain];
       
   150     [dockMenu release];
       
   151     dockMenu = newMenu;
       
   152 }
       
   153 
       
   154 - (NSMenu *)applicationDockMenu
       
   155 {
       
   156     return [[dockMenu retain] autorelease];
       
   157 }
       
   158 
       
   159 - (QApplicationPrivate *)qAppPrivate
       
   160 {
       
   161     return qtPrivate;
       
   162 }
       
   163 
       
   164 - (void)setQtPrivate:(QApplicationPrivate *)value
       
   165 {
       
   166     qtPrivate = value;
       
   167 }
       
   168 
       
   169 - (void)setMenuLoader:(QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *)menuLoader
       
   170 {
       
   171     [menuLoader retain];
       
   172     [qtMenuLoader release];
       
   173     qtMenuLoader = menuLoader;
       
   174 }
       
   175 
       
   176 - (QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *)menuLoader;
       
   177 {
       
   178     return [[qtMenuLoader retain] autorelease];
       
   179 }
       
   180 
       
   181 // This function will only be called when NSApp is actually running. Before
       
   182 // that, the kAEQuitApplication apple event will be sendt to 
       
   183 // QApplicationPrivate::globalAppleEventProcessor in qapplication_mac.mm
       
   184 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
       
   185 {
       
   186     Q_UNUSED(sender);
       
   187     // The reflection delegate gets precedence
       
   188     if (reflectionDelegate
       
   189         && [reflectionDelegate respondsToSelector:@selector(applicationShouldTerminate:)]) {
       
   190         return [reflectionDelegate applicationShouldTerminate:sender];
       
   191     }
       
   192 
       
   193     if (qtPrivate->canQuit()) {
       
   194         if (!startedQuit) {
       
   195             startedQuit = true;
       
   196             qAppInstance()->quit();
       
   197             startedQuit = false;
       
   198         }
       
   199     }
       
   200 
       
   201     if (qtPrivate->threadData->eventLoops.size() == 0) {
       
   202         // INVARIANT: No event loop is executing. This probably
       
   203         // means that Qt is used as a plugin, or as a part of a native
       
   204         // Cocoa application. In any case it should be fine to 
       
   205         // terminate now:
       
   206         return NSTerminateNow;
       
   207     } else {
       
   208         // Prevent Cocoa from terminating the application, since this simply
       
   209         // exits the program whithout allowing QApplication::exec() to return.
       
   210         // The call to QApplication::quit() above will instead quit the
       
   211         // application from the Qt side.
       
   212         return NSTerminateCancel;
       
   213     }
       
   214 }
       
   215 
       
   216 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification
       
   217 {
       
   218     Q_UNUSED(aNotification);
       
   219     inLaunch = false;
       
   220     qt_release_apple_event_handler();
       
   221 }
       
   222 
       
   223 - (void)application:(NSApplication *)sender openFiles:(NSArray *)filenames
       
   224 {
       
   225     for (NSString *fileName in filenames) {
       
   226         QString qtFileName = qt_mac_NSStringToQString(fileName);
       
   227         if (inLaunch) {
       
   228             // We need to be careful because Cocoa will be nice enough to take
       
   229             // command line arguments and send them to us as events. Given the history
       
   230             // of Qt Applications, this will result in behavior people don't want, as
       
   231             // they might be doing the opening themselves with the command line parsing.
       
   232             if (qApp->arguments().contains(qtFileName))
       
   233                 continue;
       
   234         }
       
   235         QFileOpenEvent foe(qtFileName);
       
   236         qt_sendSpontaneousEvent(qAppInstance(), &foe);
       
   237     }
       
   238 
       
   239     if (reflectionDelegate &&
       
   240         [reflectionDelegate respondsToSelector:@selector(application:openFiles:)])
       
   241         [reflectionDelegate application:sender openFiles:filenames];
       
   242 }
       
   243 
       
   244 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender
       
   245 {
       
   246     // If we have a reflection delegate, that will get to call the shots.
       
   247     if (reflectionDelegate
       
   248         && [reflectionDelegate respondsToSelector:
       
   249                             @selector(applicationShouldTerminateAfterLastWindowClosed:)])
       
   250         return [reflectionDelegate applicationShouldTerminateAfterLastWindowClosed:sender];
       
   251     return NO; // Someday qApp->quitOnLastWindowClosed(); when QApp and NSApp work closer together.
       
   252 }
       
   253 
       
   254 
       
   255 - (void)applicationDidBecomeActive:(NSNotification *)notification
       
   256 {
       
   257     if (reflectionDelegate
       
   258         && [reflectionDelegate respondsToSelector:@selector(applicationDidBecomeActive:)])
       
   259         [reflectionDelegate applicationDidBecomeActive:notification];
       
   260     onApplicationChangedActivation(true);
       
   261 }
       
   262 
       
   263 - (void)applicationDidResignActive:(NSNotification *)notification;
       
   264 {
       
   265     if (reflectionDelegate
       
   266         && [reflectionDelegate respondsToSelector:@selector(applicationDidResignActive:)])
       
   267         [reflectionDelegate applicationDidResignActive:notification];
       
   268     onApplicationChangedActivation(false);
       
   269 }
       
   270 
       
   271 - (void)applicationDidChangeScreenParameters:(NSNotification *)notification
       
   272 {
       
   273     Q_UNUSED(notification);
       
   274     QDesktopWidgetImplementation::instance()->onResize();
       
   275 }
       
   276 
       
   277 - (void)setReflectionDelegate:(NSObject <NSApplicationDelegate> *)oldDelegate
       
   278 {
       
   279     [oldDelegate retain];
       
   280     [reflectionDelegate release];
       
   281     reflectionDelegate = oldDelegate;
       
   282 }
       
   283 
       
   284 - (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector
       
   285 {
       
   286     NSMethodSignature *result = [super methodSignatureForSelector:aSelector];
       
   287     if (!result && reflectionDelegate) {
       
   288         result = [reflectionDelegate methodSignatureForSelector:aSelector];
       
   289     }
       
   290     return result;
       
   291 }
       
   292 
       
   293 - (BOOL)respondsToSelector:(SEL)aSelector
       
   294 {
       
   295     BOOL result = [super respondsToSelector:aSelector];
       
   296     if (!result && reflectionDelegate)
       
   297         result = [reflectionDelegate respondsToSelector:aSelector];
       
   298     return result;
       
   299 }
       
   300 
       
   301 - (void)forwardInvocation:(NSInvocation *)invocation
       
   302 {
       
   303     SEL invocationSelector = [invocation selector];
       
   304     if (reflectionDelegate && [reflectionDelegate respondsToSelector:invocationSelector])
       
   305         [invocation invokeWithTarget:reflectionDelegate];
       
   306     else
       
   307         [self doesNotRecognizeSelector:invocationSelector];
       
   308 }
       
   309 
       
   310 - (void)getUrl:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
       
   311 {
       
   312     Q_UNUSED(replyEvent);
       
   313 
       
   314     NSString *urlString = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
       
   315     QUrl url(qt_mac_NSStringToQString(urlString));
       
   316     QFileOpenEvent qtEvent(url);
       
   317     qt_sendSpontaneousEvent(qAppInstance(), &qtEvent);
       
   318 }
       
   319 
       
   320 @end
       
   321 #endif