Revert Mac event loop changes.

"Make QGuiApplication::exec() run within NSApplicationMain()"
"Make Qt process native and timer events on Cocoa applications"
"Cocoa: Fix QFontDialog, QColorDialog auto-tests"

This reverts commits
1e14762b8d79118540bd09a84dd3e48f4f5e113e
e4b2a0b4bab2a17a65fedafe9bae50af1fe019f6
df7944e7d7dd8b2bbccbd639eff0ab09745d6cc3

Change-Id: I80b65b5ee0297b090f807bd420664233dfc44f7b
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 72 insertions, 5 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
index 7e0fb62dcf..423d552627 100644
--- a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
+++ b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
@@ -101,6 +101,7 @@ static void cleanupCocoaApplicationDelegate()
 {
     self = [super init];
     if (self) {
+        inLaunch = true;
         [[NSNotificationCenter defaultCenter]
                 addObserver:self
                    selector:@selector(updateScreens:)
@@ -240,6 +241,55 @@ static void cleanupCocoaApplicationDelegate()
     return NSTerminateCancel;
 }
 
+- (void) applicationWillFinishLaunching:(NSNotification *)notification
+{
+    Q_UNUSED(notification);
+
+    /*
+        From the Cocoa documentation: "A good place to install event handlers
+        is in the applicationWillFinishLaunching: method of the application
+        delegate. At that point, the Application Kit has installed its default
+        event handlers, so if you install a handler for one of the same events,
+        it will replace the Application Kit version."
+    */
+
+    /*
+        If Qt is used as a plugin, we let the 3rd party application handle
+        events like quit and open file events. Otherwise, if we install our own
+        handlers, we easily end up breaking functionality the 3rd party
+        application depends on.
+     */
+    NSAppleEventManager *eventManager = [NSAppleEventManager sharedAppleEventManager];
+    [eventManager setEventHandler:self
+                      andSelector:@selector(appleEventQuit:withReplyEvent:)
+                    forEventClass:kCoreEventClass
+                       andEventID:kAEQuitApplication];
+    [eventManager setEventHandler:self
+                      andSelector:@selector(getUrl:withReplyEvent:)
+                    forEventClass:kInternetEventClass
+                       andEventID:kAEGetURL];
+}
+
+// called by QCocoaIntegration's destructor before resetting the application delegate to nil
+- (void) removeAppleEventHandlers
+{
+    NSAppleEventManager *eventManager = [NSAppleEventManager sharedAppleEventManager];
+    [eventManager removeEventHandlerForEventClass:kCoreEventClass andEventID:kAEQuitApplication];
+    [eventManager removeEventHandlerForEventClass:kInternetEventClass andEventID:kAEGetURL];
+}
+
+- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
+{
+    Q_UNUSED(aNotification);
+    inLaunch = false;
+    // qt_release_apple_event_handler();
+
+
+    // Insert code here to initialize your application
+}
+
+
+
 - (void)application:(NSApplication *)sender openFiles:(NSArray *)filenames
 {
     Q_UNUSED(filenames);
@@ -247,6 +297,14 @@ static void cleanupCocoaApplicationDelegate()
 
     for (NSString *fileName in filenames) {
         QString qtFileName = QCFString::toQString(fileName);
+        if (inLaunch) {
+            // We need to be careful because Cocoa will be nice enough to take
+            // command line arguments and send them to us as events. Given the history
+            // of Qt Applications, this will result in behavior people don't want, as
+            // they might be doing the opening themselves with the command line parsing.
+            if (qApp->arguments().contains(qtFileName))
+                continue;
+        }
         QWindowSystemInterface::handleFileOpenEvent(qtFileName);
     }
 
@@ -309,11 +367,6 @@ static void cleanupCocoaApplicationDelegate()
 */
 }
 
-- (NSObject<NSApplicationDelegate> *)reflectionDelegate
-{
-    return reflectionDelegate;
-}
-
 - (void)setReflectionDelegate:(NSObject <NSApplicationDelegate> *)oldDelegate
 {
     [oldDelegate retain];
@@ -347,6 +400,20 @@ static void cleanupCocoaApplicationDelegate()
         [self doesNotRecognizeSelector:invocationSelector];
 }
 
+- (void)getUrl:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
+{
+    Q_UNUSED(replyEvent);
+    NSString *urlString = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
+    QWindowSystemInterface::handleFileOpenEvent(QCFString::toQString(urlString));
+}
+
+- (void)appleEventQuit:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
+{
+    Q_UNUSED(event);
+    Q_UNUSED(replyEvent);
+    [NSApp terminate:self];
+}
+
 - (void)qtDispatcherToQAction:(id)sender
 {
     Q_UNUSED(sender);