Mac app - drag and drop files into a menubar application - objective-c

Question

My inspiration for this project is the Droplr and CloudApp mac menubar applications. I have been attempting to implement the code explained here.
However, when I implement the code, the menubar images disappear. Here is my code to create the status item:
- (id)init {
self = [super init];
if (self != nil) {
// Install status item into the menu bar
NSStatusItem *statusItem = [[NSStatusBar systemStatusBar] statusItemWithLength:STATUS_ITEM_VIEW_WIDTH];
_statusItemView = [[StatusItemView alloc] initWithStatusItem:statusItem];
_statusItemView.image = [NSImage imageNamed:#"Status"];
_statusItemView.alternateImage = [NSImage imageNamed:#"StatusHighlighted"];
_statusItemView.action = #selector(togglePanel:);
StatusItemView* dragView = [[StatusItemView alloc] initWithFrame:NSMakeRect(0, 0, 24, 24)];
[statusItem setView:dragView];
[dragView release];
}
return self;
}
This is my view file:
#import "StatusItemView.h"
#implementation StatusItemView
#synthesize statusItem = _statusItem;
#synthesize image = _image;
#synthesize alternateImage = _alternateImage;
#synthesize isHighlighted = _isHighlighted;
#synthesize action = _action;
#synthesize target = _target;
#pragma mark -
- (id)initWithStatusItem:(NSStatusItem *)statusItem {
CGFloat itemWidth = [statusItem length];
CGFloat itemHeight = [[NSStatusBar systemStatusBar] thickness];
NSRect itemRect = NSMakeRect(0.0, 0.0, itemWidth, itemHeight);
self = [super initWithFrame:itemRect];
if (self != nil) {
_statusItem = statusItem;
_statusItem.view = self;
}
return self;
}
#pragma mark -
- (id)initWithFrame:(NSRect)frame {
self = [super initWithFrame:frame];
if (self) {
//register for drags
[self registerForDraggedTypes:[NSArray arrayWithObjects: NSFilenamesPboardType, nil]];
}
return self;
}
//we want to copy the files
- (NSDragOperation)draggingEntered:(id<NSDraggingInfo>)sender {
return NSDragOperationCopy;
}
perform the drag and log the files that are dropped
- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender {
NSPasteboard *pboard;
NSDragOperation sourceDragMask;
sourceDragMask = [sender draggingSourceOperationMask];
pboard = [sender draggingPasteboard];
if( [[pboard types] containsObject:NSFilenamesPboardType] ) {
NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
NSLog(#"Files: %#",files);
}
return YES;
}
#pragma mark -
- (void)drawRect:(NSRect)dirtyRect {
[self.statusItem drawStatusBarBackgroundInRect:dirtyRect withHighlight:self.isHighlighted];
NSImage *icon = self.isHighlighted ? self.alternateImage : self.image;
NSSize iconSize = [icon size];
NSRect bounds = self.bounds;
CGFloat iconX = roundf((NSWidth(bounds) - iconSize.width) / 2);
CGFloat iconY = roundf((NSHeight(bounds) - iconSize.height) / 2);
NSPoint iconPoint = NSMakePoint(iconX, iconY);
[icon compositeToPoint:iconPoint operation:NSCompositeSourceOver];
}
#pragma mark -
#pragma mark Mouse tracking
- (void)mouseDown:(NSEvent *)theEvent {
[NSApp sendAction:self.action to:self.target from:self];
}
#pragma mark -
#pragma mark Accessors
- (void)setHighlighted:(BOOL)newFlag {
if (_isHighlighted == newFlag) return;
_isHighlighted = newFlag;
[self setNeedsDisplay:YES];
}
#pragma mark -
- (void)setImage:(NSImage *)newImage {
if (_image != newImage) {
_image = newImage;
[self setNeedsDisplay:YES];
}
}
- (void)setAlternateImage:(NSImage *)newImage {
if (_alternateImage != newImage) {
_alternateImage = newImage;
if (self.isHighlighted) {
[self setNeedsDisplay:YES];
}
}
}
#pragma mark -
- (NSRect)globalRect {
NSRect frame = [self frame];
frame.origin = [self.window convertBaseToScreen:frame.origin];
return frame;
}
#end
Thanks everyone!

Answer 1

I know this is an old question but perhaps this might help:
Try setting the NSStatusItem *statusItem as a #propery of the class. If you have ARC, the menubar might be getting destroyed right after the init function finishes.