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// Copyright (c) 2011 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/browser/ui/cocoa/draggable_button.h"
#include "base/logging.h"
@implementation DraggableButton
- (id)initWithFrame:(NSRect)frame {
if ((self = [super initWithFrame:frame])) {
draggableButtonImpl_.reset(
[[DraggableButtonImpl alloc] initWithButton:self]);
}
return self;
}
- (id)initWithCoder:(NSCoder*)coder {
if ((self = [super initWithCoder:coder])) {
draggableButtonImpl_.reset(
[[DraggableButtonImpl alloc] initWithButton:self]);
}
return self;
}
- (DraggableButtonImpl*)draggableButton {
return draggableButtonImpl_.get();
}
- (void)mouseUp:(NSEvent*)theEvent {
if ([draggableButtonImpl_ mouseUpImpl:theEvent] ==
kDraggableButtonMixinCallSuper) {
[super mouseUp:theEvent];
}
}
- (void)mouseDown:(NSEvent*)theEvent {
// The impl spins an event loop to distinguish clicks from drags,
// which could result in our destruction. Wire ourselves down for
// the duration.
scoped_nsobject<DraggableButton> keepAlive([self retain]);
if ([draggableButtonImpl_ mouseDownImpl:theEvent] ==
kDraggableButtonMixinCallSuper) {
[super mouseDown:theEvent];
}
}
- (void)beginDrag:(NSEvent*)dragEvent {
// Must be overridden by subclasses.
NOTREACHED();
}
@end // @interface DraggableButton
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