add share button and implement AirDrop share in OSX, update info.plist to set on Mac OS the default app for PPI, on iOS include the Documents/Inbox subfolder used to store the received files from AirDrop

PanoPainter-OSX/main.cpp

@@ -21,6 +21,9 @@ std::deque<std::packaged_task<void()>> tasklist;
 std::mutex task_mutex;
 
 @implementation View
+{
+    NSSharingService *airdrop_service;
+}
 - (void)async_lock
 {
     CGLLockContext([glctx CGLContextObj]);
@@ -81,8 +84,39 @@ std::mutex task_mutex;
     }
     return ret;
 }
+- (void)share_file:(NSString*)file_path
+{
+    NSURL *url = [NSURL fileURLWithPath:file_path];
+    NSArray *objectsToShare = @[url];
+//
+//    UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil];
+//
+//    // Exclude all activities except AirDrop.
+//    NSArray *excludedActivities = @[UIActivityTypePostToTwitter, UIActivityTypePostToFacebook,
+//                                    UIActivityTypePostToWeibo,
+//                                    UIActivityTypeMessage, UIActivityTypeMail,
+//                                    UIActivityTypePrint, UIActivityTypeCopyToPasteboard,
+//                                    UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll,
+//                                    UIActivityTypeAddToReadingList, UIActivityTypePostToFlickr,
+//                                    UIActivityTypePostToVimeo, UIActivityTypePostToTencentWeibo];
+//    controller.excludedActivityTypes = excludedActivities;
+//
+//    // Present the controller
+//    [self presentViewController:controller animated:YES completion:nil];
+    [airdrop_service performWithItems:objectsToShare];
+}
+- (NSWindow *)sharingService:(NSSharingService *)sharingService sourceWindowForShareItems:(NSArray *)items sharingContentScope:(NSSharingContentScope *)sharingContentScope
+{
+    return self.window;
+}
+- (NSView *)anchoringViewForSharingService:(NSSharingService *)sharingService showRelativeToRect:(NSRect *)positioningRect preferredEdge:(NSRectEdge *)preferredEdge
+{
+    return self;
+}
 - (instancetype)initWithFrame:(NSRect)frameRect
 {
+    airdrop_service = [NSSharingService  sharingServiceNamed:NSSharingServiceNameSendViaAirDrop];
+    airdrop_service.delegate = self;
     gl_ready = false;
     NSOpenGLPixelFormatAttribute attrs[] =
     {
@@ -134,6 +168,12 @@ std::mutex task_mutex;
     App::I.init();
     CGLUnlockContext([[self openGLContext] CGLContextObj]);
     gl_ready = true;
+
+    if ([file2open length] > 0)
+    {
+        LOG("open file %s", [file2open UTF8String]);
+        App::I.open_document([file2open UTF8String]);
+    }
 }
 
 - (void)terminateGL
@@ -428,6 +468,7 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     Window* window;
     Controller* controller;
     View* view;
+    NSString* file2open;
 }
 @end @implementation AppOSX
 - (instancetype)init
@@ -437,6 +478,13 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     [self setDelegate:self];
     return self;
 }
+- (BOOL)application:(NSApplication *)sender openFile:(NSString *)filename
+{
+    LOG("open file %s", [filename UTF8String]);
+    //App::I.open_document([filename UTF8String]);
+    file2open = filename;
+    return YES;
+}
 - (void)applicationWillTerminate:(NSNotification *)notification
 {
     [view terminateGL];
@@ -458,9 +506,10 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     NSRect r = NSMakeRect(0, 0, App::I.width, App::I.height);
     
     view = [[View alloc] initWithFrame:r];
+    view->file2open = file2open;
     controller = [[Controller alloc] initWithWindow:window];
     App::I.osx_view = view;
-
+    
     auto style = NSTitledWindowMask|NSMiniaturizableWindowMask|NSResizableWindowMask|NSClosableWindowMask;
     window = [[Window alloc] initWithContentRect:r styleMask:style backing:NSBackingStoreBuffered defer:NO];
     [window setDelegate:controller];
@@ -471,7 +520,7 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     [window setAcceptsMouseMovedEvents:true];
     [window makeFirstResponder:view];
     view->wnd = window;
-    
+
     auto menubar = [NSMenu new];
     auto appMenuItem = [NSMenuItem new];
     [menubar addItem:appMenuItem];