144 lines
3.8 KiB
Objective-C
144 lines
3.8 KiB
Objective-C
// 8 july 2014
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#import "objc_darwin.h"
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#import "_cgo_export.h"
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#import "modalqueue.h"
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#import <Cocoa/Cocoa.h>
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#define toNSWindow(x) ((NSWindow *) (x))
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static Class areaClass;
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@interface goApplication : NSApplication
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@end
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@implementation goApplication
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// by default, NSApplication eats some key events
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// this prevents that from happening with Area
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// see http://stackoverflow.com/questions/24099063/how-do-i-detect-keyup-in-my-nsview-with-the-command-key-held and http://lists.apple.com/archives/cocoa-dev/2003/Oct/msg00442.html
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- (void)sendEvent:(NSEvent *)e
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{
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NSEventType type;
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BOOL handled = NO;
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type = [e type];
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if (type == NSKeyDown || type == NSKeyUp || type == NSFlagsChanged) {
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id focused;
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focused = [[e window] firstResponder];
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if (focused != nil && [focused isKindOfClass:areaClass])
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switch (type) {
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case NSKeyDown:
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handled = [focused doKeyDown:e];
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break;
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case NSKeyUp:
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handled = [focused doKeyUp:e];
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break;
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case NSFlagsChanged:
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handled = [focused doFlagsChanged:e];
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break;
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}
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}
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if (!handled)
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[super sendEvent:e];
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}
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// ok AppKit, wanna play hardball? let's play hardball.
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// because I can neither break out of the special version of the NSModalPanelRunLoopMode that the regular terminate: puts us in nor avoid the exit(0); call included, I'm taking control
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// note that this is called AFTER applicationShouldTerminate:
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- (void)terminate:(id)sender
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{
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// DO ABSOLUTELY NOTHING
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// the magic is [NSApp run] will just... stop.
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}
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@end
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@interface appDelegateClass : NSObject <NSApplicationDelegate>
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@end
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@implementation appDelegateClass
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- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)app
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{
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NSArray *windows;
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NSUInteger i, n;
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windows = [NSApp windows];
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n = [windows count];
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for (i = 0; i < n; i++) {
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NSWindow *w;
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w = toNSWindow([windows objectAtIndex:i]);
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if (![[w delegate] windowShouldClose:w])
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// stop at the first rejection; thanks Lyle42 in irc.freenode.net/#macdev
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return NSTerminateCancel;
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}
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// all windows closed; stop gracefully for Go
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// note that this is designed for our special terminate: above
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return NSTerminateNow;
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}
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- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)app
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{
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return NO;
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}
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@end
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appDelegateClass *appDelegate;
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id getAppDelegate(void)
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{
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return appDelegate;
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}
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void uiinit(char **errmsg)
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{
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areaClass = getAreaClass();
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appDelegate = [appDelegateClass new];
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[goApplication sharedApplication];
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// don't check for a NO return; something (launch services?) causes running from application bundles to always return NO when asking to change activation policy, even if the change is to the same activation policy!
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// see https://github.com/andlabs/ui/issues/6
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[NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
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[NSApp setDelegate:appDelegate];
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}
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void uimsgloop(void)
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{
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[NSApp run];
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// NSLog(@"you shouldn't see this under normal circumstances, but screw the rules, I have SUBCLASSING");
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}
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// don't use [NSApp terminate:]; that quits the program
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void uistop(void)
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{
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NSEvent *e;
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[NSApp stop:NSApp];
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// stop: won't register until another event has passed; let's synthesize one
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e = [NSEvent otherEventWithType:NSApplicationDefined
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location:NSZeroPoint
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modifierFlags:0
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timestamp:[[NSProcessInfo processInfo] systemUptime]
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windowNumber:0
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context:[NSGraphicsContext currentContext]
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subtype:0
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data1:0
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data2:0];
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[NSApp postEvent:e atStart:NO]; // let pending events take priority
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}
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// we use the modal queue because dispatch_suspend()/dispatch_resume() can't be used with the main queue
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// thanks to mikeash in irc.freenode.net/#macdev for suggesting the use of Grand Central Dispatch and blocks for this
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void issue(void *what)
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{
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if (queueIfModal(what))
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return;
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dispatch_async(dispatch_get_main_queue(), ^{
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doissue(what);
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});
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}
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