Added simple hud overlay on double-click actions

MacPass/MPOverlayWindowController.m

@@ -0,0 +1,87 @@
+//
+//  MPOverlayWindowController.m
+//  MacPass
+//
+//  Created by Michael Starke on 03.03.13.
+//  Copyright (c) 2013 HicknHack Software GmbH. All rights reserved.
+//
+
+#import "MPOverlayWindowController.h"
+#import "MPOverlayView.h"
+
+@interface MPOverlayWindowController ()
+
+@property (assign) BOOL isAnimating;
+@property (assign) IBOutlet NSImageView *imageView;
+@property (assign) IBOutlet NSTextField *textField;
+
+@end
+
+@implementation MPOverlayWindowController
+
++ (MPOverlayWindowController *)sharedController {
+  static MPOverlayWindowController *sharedInstance;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    sharedInstance = [[MPOverlayWindowController alloc] initWithWindowNibName:@"OverlayWindow"];
+  });
+  return sharedInstance;
+}
+
+- (id)initWithWindow:(NSWindow *)window {
+    self = [super initWithWindow:window];
+    if (self) {
+        // Initialization code here.
+    }
+    return self;
+}
+
+- (void)windowDidLoad {
+  [super windowDidLoad];
+  [self.window setStyleMask:NSBorderlessWindowMask];
+  [self.window setAlphaValue:0];
+  [self.window setOpaque:NO];
+  [self.window setHasShadow:NO];
+  [[self.textField cell] setBackgroundStyle:NSBackgroundStyleLowered];
+  [[self.imageView cell] setBackgroundStyle:NSBackgroundStyleLowered];
+  [[self.imageView cell] setImageAlignment:NSImageAlignCenter];
+}
+
+- (void)displayOverlayImage:(NSImage *)imageOrNil label:(NSString *)labelOrNil atView:(NSView *)view {
+  /* make window transparent */
+
+  [self.window setAlphaValue:0];
+  [self.window setIsVisible:YES];
+  
+  /* setup any provided images and labels*/
+  [self.imageView setImage:imageOrNil];
+  if(labelOrNil) {
+    [self.textField setStringValue:labelOrNil];
+  }
+  else {
+    [self.textField setStringValue:@""];
+  }
+  [self.textField sizeToFit];
+  /*
+   Center in view
+   */
+  if(view) {
+    NSWindow *parentWindow = [view window];
+    NSRect parentFrame = [parentWindow frame];
+    NSRect myFrame = [self.window frame];
+    NSPoint newOrigin = parentFrame.origin;
+    newOrigin.x += 0.5 * (parentFrame.size.width - myFrame.size.width);
+    newOrigin.y += 0.5 * (parentFrame.size.height - myFrame.size.height);
+    [self.window setFrameOrigin:newOrigin];
+    [parentWindow addChildWindow:self.window ordered:NSWindowAbove];
+    [NSAnimationContext runAnimationGroup:^(NSAnimationContext *context) {
+      context.duration = 0.2;
+      [[self.window animator]setAlphaValue:1];
+    } completionHandler:^{
+      [self.window performSelector:@selector(close) withObject:nil afterDelay:0.5];
+    }];
+
+  }
+}
+
+@end