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351 lines
13 KiB
351 lines
13 KiB
11 years ago
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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typedef void (*AppFocusChangeCallback)();
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AppFocusChangeCallback appFocusChangeCallback = nullptr;
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typedef bool (*CheckEventBlockedByModalComps) (NSEvent*);
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CheckEventBlockedByModalComps isEventBlockedByModalComps = nullptr;
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typedef void (*MenuTrackingChangedCallback)(bool);
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MenuTrackingChangedCallback menuTrackingChangedCallback = nullptr;
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//==============================================================================
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struct AppDelegate
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{
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public:
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AppDelegate()
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{
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static AppDelegateClass cls;
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delegate = [cls.createInstance() init];
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NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
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[center addObserver: delegate selector: @selector (mainMenuTrackingBegan:)
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name: NSMenuDidBeginTrackingNotification object: nil];
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[center addObserver: delegate selector: @selector (mainMenuTrackingEnded:)
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name: NSMenuDidEndTrackingNotification object: nil];
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if (JUCEApplicationBase::isStandaloneApp())
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{
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[NSApp setDelegate: delegate];
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[[NSDistributedNotificationCenter defaultCenter] addObserver: delegate
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selector: @selector (broadcastMessageCallback:)
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name: getBroacastEventName()
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object: nil];
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}
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else
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{
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[center addObserver: delegate selector: @selector (applicationDidResignActive:)
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name: NSApplicationDidResignActiveNotification object: NSApp];
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[center addObserver: delegate selector: @selector (applicationDidBecomeActive:)
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name: NSApplicationDidBecomeActiveNotification object: NSApp];
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[center addObserver: delegate selector: @selector (applicationWillUnhide:)
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name: NSApplicationWillUnhideNotification object: NSApp];
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}
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}
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~AppDelegate()
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{
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[[NSRunLoop currentRunLoop] cancelPerformSelectorsWithTarget: delegate];
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[[NSNotificationCenter defaultCenter] removeObserver: delegate];
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if (JUCEApplicationBase::isStandaloneApp())
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{
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[NSApp setDelegate: nil];
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[[NSDistributedNotificationCenter defaultCenter] removeObserver: delegate
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name: getBroacastEventName()
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object: nil];
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}
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[delegate release];
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}
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static NSString* getBroacastEventName()
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{
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return juceStringToNS ("juce_" + String::toHexString (File::getSpecialLocation (File::currentExecutableFile).hashCode64()));
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}
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MessageQueue messageQueue;
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id delegate;
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private:
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//==============================================================================
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struct AppDelegateClass : public ObjCClass <NSObject>
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{
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AppDelegateClass() : ObjCClass <NSObject> ("JUCEAppDelegate_")
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{
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addMethod (@selector (applicationShouldTerminate:), applicationShouldTerminate, "I@:@");
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addMethod (@selector (applicationWillTerminate:), applicationWillTerminate, "v@:@");
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addMethod (@selector (application:openFile:), application_openFile, "c@:@@");
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addMethod (@selector (application:openFiles:), application_openFiles, "v@:@@");
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addMethod (@selector (applicationDidBecomeActive:), applicationDidBecomeActive, "v@:@");
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addMethod (@selector (applicationDidResignActive:), applicationDidResignActive, "v@:@");
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addMethod (@selector (applicationWillUnhide:), applicationWillUnhide, "v@:@");
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addMethod (@selector (broadcastMessageCallback:), broadcastMessageCallback, "v@:@");
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addMethod (@selector (mainMenuTrackingBegan:), mainMenuTrackingBegan, "v@:@");
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addMethod (@selector (mainMenuTrackingEnded:), mainMenuTrackingEnded, "v@:@");
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addMethod (@selector (dummyMethod), dummyMethod, "v@:");
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registerClass();
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}
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private:
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static NSApplicationTerminateReply applicationShouldTerminate (id /*self*/, SEL, NSApplication*)
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{
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if (JUCEApplicationBase* const app = JUCEApplicationBase::getInstance())
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{
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app->systemRequestedQuit();
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if (! MessageManager::getInstance()->hasStopMessageBeenSent())
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return NSTerminateCancel;
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}
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return NSTerminateNow;
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}
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static void applicationWillTerminate (id /*self*/, SEL, NSNotification*)
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{
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JUCEApplicationBase::appWillTerminateByForce();
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}
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static BOOL application_openFile (id /*self*/, SEL, NSApplication*, NSString* filename)
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{
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if (JUCEApplicationBase* const app = JUCEApplicationBase::getInstance())
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{
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app->anotherInstanceStarted (quotedIfContainsSpaces (filename));
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return YES;
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}
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return NO;
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}
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static void application_openFiles (id /*self*/, SEL, NSApplication*, NSArray* filenames)
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{
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if (JUCEApplicationBase* const app = JUCEApplicationBase::getInstance())
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{
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StringArray files;
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for (NSString* f in filenames)
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files.add (quotedIfContainsSpaces (f));
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if (files.size() > 0)
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app->anotherInstanceStarted (files.joinIntoString (" "));
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}
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}
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static void applicationDidBecomeActive (id /*self*/, SEL, NSNotification*) { focusChanged(); }
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static void applicationDidResignActive (id /*self*/, SEL, NSNotification*) { focusChanged(); }
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static void applicationWillUnhide (id /*self*/, SEL, NSNotification*) { focusChanged(); }
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static void broadcastMessageCallback (id /*self*/, SEL, NSNotification* n)
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{
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NSDictionary* dict = (NSDictionary*) [n userInfo];
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const String messageString (nsStringToJuce ((NSString*) [dict valueForKey: nsStringLiteral ("message")]));
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MessageManager::getInstance()->deliverBroadcastMessage (messageString);
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}
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static void mainMenuTrackingBegan (id /*self*/, SEL, NSNotification*)
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{
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if (menuTrackingChangedCallback != nullptr)
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(*menuTrackingChangedCallback) (true);
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}
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static void mainMenuTrackingEnded (id /*self*/, SEL, NSNotification*)
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{
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if (menuTrackingChangedCallback != nullptr)
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(*menuTrackingChangedCallback) (false);
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}
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static void dummyMethod (id /*self*/, SEL) {} // (used as a way of running a dummy thread)
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private:
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static void focusChanged()
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{
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if (appFocusChangeCallback != nullptr)
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(*appFocusChangeCallback)();
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}
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static String quotedIfContainsSpaces (NSString* file)
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{
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String s (nsStringToJuce (file));
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if (s.containsChar (' '))
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s = s.quoted ('"');
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return s;
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}
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};
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};
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//==============================================================================
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void MessageManager::runDispatchLoop()
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{
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if (! quitMessagePosted) // check that the quit message wasn't already posted..
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{
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JUCE_AUTORELEASEPOOL
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{
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// must only be called by the message thread!
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jassert (isThisTheMessageThread());
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#if JUCE_PROJUCER_LIVE_BUILD
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runDispatchLoopUntil (std::numeric_limits<int>::max());
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#else
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#if JUCE_CATCH_UNHANDLED_EXCEPTIONS
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@try
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{
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[NSApp run];
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}
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@catch (NSException* e)
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{
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// An AppKit exception will kill the app, but at least this provides a chance to log it.,
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std::runtime_error ex (std::string ("NSException: ") + [[e name] UTF8String] + ", Reason:" + [[e reason] UTF8String]);
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JUCEApplication::sendUnhandledException (&ex, __FILE__, __LINE__);
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}
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@finally
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{
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}
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#else
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[NSApp run];
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#endif
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#endif
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}
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}
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}
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void MessageManager::stopDispatchLoop()
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{
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jassert (isThisTheMessageThread()); // must only be called by the message thread
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quitMessagePosted = true;
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#if ! JUCE_PROJUCER_LIVE_BUILD
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[NSApp stop: nil];
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[NSApp activateIgnoringOtherApps: YES]; // (if the app is inactive, it sits there and ignores the quit request until the next time it gets activated)
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[NSEvent startPeriodicEventsAfterDelay: 0 withPeriod: 0.1];
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#endif
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}
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#if JUCE_MODAL_LOOPS_PERMITTED
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bool MessageManager::runDispatchLoopUntil (int millisecondsToRunFor)
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{
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jassert (millisecondsToRunFor >= 0);
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jassert (isThisTheMessageThread()); // must only be called by the message thread
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uint32 endTime = Time::getMillisecondCounter() + (uint32) millisecondsToRunFor;
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while (! quitMessagePosted)
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{
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JUCE_AUTORELEASEPOOL
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{
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CFRunLoopRunInMode (kCFRunLoopDefaultMode, 0.001, true);
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NSEvent* e = [NSApp nextEventMatchingMask: NSAnyEventMask
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untilDate: [NSDate dateWithTimeIntervalSinceNow: 0.001]
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inMode: NSDefaultRunLoopMode
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dequeue: YES];
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if (e != nil && (isEventBlockedByModalComps == nullptr || ! (*isEventBlockedByModalComps) (e)))
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[NSApp sendEvent: e];
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if (Time::getMillisecondCounter() >= endTime)
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break;
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}
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}
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return ! quitMessagePosted;
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}
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#endif
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//==============================================================================
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void initialiseNSApplication();
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void initialiseNSApplication()
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{
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JUCE_AUTORELEASEPOOL
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{
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[NSApplication sharedApplication];
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}
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}
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static AppDelegate* appDelegate = nullptr;
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void MessageManager::doPlatformSpecificInitialisation()
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{
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if (appDelegate == nil)
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appDelegate = new AppDelegate();
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#if ! (defined (MAC_OS_X_VERSION_10_5) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5)
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// This launches a dummy thread, which forces Cocoa to initialise NSThreads correctly (needed prior to 10.5)
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if (! [NSThread isMultiThreaded])
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[NSThread detachNewThreadSelector: @selector (dummyMethod)
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toTarget: appDelegate->delegate
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withObject: nil];
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#endif
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}
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void MessageManager::doPlatformSpecificShutdown()
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{
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delete appDelegate;
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appDelegate = nullptr;
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}
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bool MessageManager::postMessageToSystemQueue (MessageBase* message)
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{
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jassert (appDelegate != nil);
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appDelegate->messageQueue.post (message);
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return true;
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}
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void MessageManager::broadcastMessage (const String& message)
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{
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NSDictionary* info = [NSDictionary dictionaryWithObject: juceStringToNS (message)
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forKey: nsStringLiteral ("message")];
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[[NSDistributedNotificationCenter defaultCenter] postNotificationName: AppDelegate::getBroacastEventName()
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object: nil
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userInfo: info];
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}
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// Special function used by some plugin classes to re-post carbon events
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void repostCurrentNSEvent();
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void repostCurrentNSEvent()
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{
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struct EventReposter : public CallbackMessage
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{
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EventReposter() : e ([[NSApp currentEvent] retain]) {}
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~EventReposter() { [e release]; }
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void messageCallback() override
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{
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[NSApp postEvent: e atStart: YES];
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}
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NSEvent* e;
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};
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(new EventReposter())->post();
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}
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