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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#import "chrome_application_mac.h"

#include "base/logging.h"

@interface CrApplication ()
@property(readwrite, getter=isHandlingSendEvent, nonatomic) BOOL handlingSendEvent;
@end

@implementation CrApplication
@synthesize handlingSendEvent = handlingSendEvent_;

// Initialize NSApplication using the custom subclass.  Check whether NSApp
// was already initialized using another class, because that would break
// some things.
+ (NSApplication*)sharedApplication {
  NSApplication* app = [super sharedApplication];
  if (![NSApp isKindOfClass:self]) {
    CHROMIUM_LOG(ERROR) << "NSApp should be of type " << [[self className] UTF8String] << ", not "
                        << [[NSApp className] UTF8String];
    DCHECK(false) << "NSApp is of wrong type";
  }
  return app;
}

- (id)init {
  if ((self = [super init])) {
    eventHooks_.reset([[NSMutableArray alloc] init]);
  }
  return self;
}

- (void)sendEvent:(NSEvent*)event {
  chrome_application_mac::ScopedSendingEvent sendingEventScoper;
  for (id<CrApplicationEventHookProtocol> handler in eventHooks_.get()) {
    [handler hookForEvent:event];
  }
  [super sendEvent:event];
}

- (void)addEventHook:(id<CrApplicationEventHookProtocol>)handler {
  [eventHooks_ addObject:handler];
}

- (void)removeEventHook:(id<CrApplicationEventHookProtocol>)handler {
  [eventHooks_ removeObject:handler];
}

@end

namespace chrome_application_mac {

ScopedSendingEvent::ScopedSendingEvent()
    : app_(static_cast<CrApplication*>([CrApplication sharedApplication])),
      handling_([app_ isHandlingSendEvent]) {
  [app_ setHandlingSendEvent:YES];
}

ScopedSendingEvent::~ScopedSendingEvent() { [app_ setHandlingSendEvent:handling_]; }

}  // namespace chrome_application_mac