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// Copyright (c) 2012 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/tabs/throbbing_image_view.h"
#include "chrome/browser/ui/tabs/tab_utils.h"
#include "ui/gfx/animation/animation.h"
#include "ui/gfx/animation/animation_delegate.h"
class ThrobbingImageViewAnimationDelegate : public gfx::AnimationDelegate {
public:
ThrobbingImageViewAnimationDelegate(NSView* view) : view_(view) {}
virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE {
[view_ setNeedsDisplay:YES];
}
private:
NSView* view_; // weak
};
@implementation ThrobbingImageView
- (id)initWithFrame:(NSRect)rect
backgroundImage:(NSImage*)backgroundImage
throbImage:(NSImage*)throbImage
throbPosition:(ThrobPosition)throbPosition
animationContainer:(gfx::AnimationContainer*)animationContainer {
if ((self = [super initWithFrame:rect])) {
backgroundImage_.reset([backgroundImage retain]);
throbImage_.reset([throbImage retain]);
delegate_.reset(new ThrobbingImageViewAnimationDelegate(self));
throbAnimation_ = chrome::CreateTabRecordingIndicatorAnimation();
throbAnimation_->set_delegate(delegate_.get());
throbAnimation_->SetContainer(animationContainer);
throbAnimation_->Start();
throbPosition_ = throbPosition;
}
return self;
}
- (void)dealloc {
throbAnimation_->Stop();
[super dealloc];
}
- (void)drawRect:(NSRect)rect {
[backgroundImage_ drawInRect:[self bounds]
fromRect:NSZeroRect
operation:NSCompositeSourceOver
fraction:1];
NSRect b = [self bounds];
NSRect throbImageBounds;
if (throbPosition_ == kThrobPositionBottomRight) {
NSSize throbImageSize = [throbImage_ size];
throbImageBounds.origin = b.origin;
throbImageBounds.origin.x += NSWidth(b) - throbImageSize.width;
throbImageBounds.size = throbImageSize;
} else {
throbImageBounds = b;
}
[throbImage_ drawInRect:throbImageBounds
fromRect:NSZeroRect
operation:NSCompositeSourceOver
fraction:throbAnimation_->GetCurrentValue()];
}
@end
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