VuoAppSplashWindow.m

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#ifndef NS_RETURNS_INNER_POINTER
#define NS_RETURNS_INNER_POINTER
#endif
#import <AppKit/AppKit.h>
 
#import "VuoAppSplashWindow.h"
 
#import "VuoApp.h"
#import "VuoAppSplashView.h"
 
#import "VuoConfig.h"
 
NSWindow *VuoApp_splashWindow = nil;
const double VuoApp_splashWindowWidth  = 640;
const double VuoApp_splashWindowHeight = 384;
 
void VuoApp_showSplashWindow(void)
{
    VuoApp_splashWindow = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, VuoApp_splashWindowWidth, VuoApp_splashWindowHeight)
                                                                styleMask:NSBorderlessWindowMask
                                                                  backing:NSBackingStoreBuffered
                                                                    defer:NO];
    VuoApp_splashWindow.animationBehavior = NSWindowAnimationBehaviorNone;
    VuoApp_splashWindow.hasShadow = YES;
 
    NSView *view = [VuoAppSplashView new];
    VuoApp_splashWindow.contentView = view;
    [view release];
 
    [VuoApp_splashWindow center];
    VuoApp_splashWindow.alphaValue = 0;
    [VuoApp_splashWindow makeKeyAndOrderFront:nil];
 
    [NSCursor.pointingHandCursor push];
 
 
    // Fade in.
    // Can't simply use `+[NSAnimationContext runAnimationGroup:]` here,
    // since it has no effect on OS X 10.10 and macOS 10.12,
    // possibly because we're processing events ourselves below
    // rather than using the main event loop.
    // (But `-[NSRunLoop.mainRunLoop runUntilDate:…]` and `-[NSRunLoop.currentRunLoop runUntilDate:…]` don't work either.)
 
    double splashFadeSeconds = VuoApp_windowFadeSeconds * 2;
//  [NSAnimationContext runAnimationGroup:^(NSAnimationContext *context){
//      context.duration = splashFadeSeconds;
//      VuoApp_splashWindow.animator.alphaValue = 0;
//  } completionHandler:^{
//      VLog("finished fading in: %g",VuoApp_splashWindow.alphaValue);
//  }];
    double t0 = VuoLogGetElapsedTime();
    do
    {
        NSEvent *event = [VuoApp_splashWindow nextEventMatchingMask:NSAnyEventMask
                                untilDate:[NSDate dateWithTimeIntervalSinceNow:1./60]
                                inMode:NSDefaultRunLoopMode
                                dequeue:YES];
        [VuoApp_splashWindow sendEvent:event];
        VuoApp_splashWindow.alphaValue = (VuoLogGetElapsedTime() - t0) / splashFadeSeconds;
    } while (t0 + splashFadeSeconds > VuoLogGetElapsedTime());
 
 
    // Hold.
    // Can't simply use `-[NSRunLoop runUntilDate:]` here,
    // since that doesn't immediately process the `-[NSWorkspace openURL:]` message.
    double splashHoldSeconds = 1;
    t0 = VuoLogGetElapsedTime();
    do
    {
        NSEvent *event = [VuoApp_splashWindow nextEventMatchingMask:NSAnyEventMask
                                untilDate:[NSDate dateWithTimeIntervalSinceNow:splashHoldSeconds]
                                inMode:NSDefaultRunLoopMode
                                dequeue:YES];
        [VuoApp_splashWindow sendEvent:event];
    } while (t0 + splashHoldSeconds > VuoLogGetElapsedTime());
 
 
    // Fade out.
    // `+[NSAnimationContext runAnimationGroup:]` does work here on OS X 10.10,
    // possibly because we're using the main event loop (see below).
    [NSAnimationContext runAnimationGroup:^(NSAnimationContext *context){
        context.duration = splashFadeSeconds;
        VuoApp_splashWindow.animator.alphaValue = 0;
    } completionHandler:^{
        [VuoApp_splashWindow close];
        VuoApp_splashWindow = nil;
    }];
 
    [NSCursor.pointingHandCursor pop];
 
    // Return immediately and let the main event loop handle the fadeout
    // (so the composition's windows can simultaneously fade in).
}