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/*
* Copyright (C) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "WebWindowAnimation.h"
#import "WebKitSystemInterface.h"
#import <wtf/Assertions.h>
static const CGFloat slowMotionFactor = 10.;
static NSTimeInterval WebWindowAnimationDurationFromDuration(NSTimeInterval duration)
{
return ([[NSApp currentEvent] modifierFlags] & NSShiftKeyMask) ? duration * slowMotionFactor : duration;
}
static NSRect scaledRect(NSRect _initialFrame, NSRect _finalFrame, double factor)
{
NSRect currentRect = _initialFrame;
currentRect.origin.x += (NSMinX(_finalFrame) - NSMinX(_initialFrame)) * factor;
currentRect.origin.y += (NSMinY(_finalFrame) - NSMinY(_initialFrame)) * factor;
currentRect.size.width += (NSWidth(_finalFrame) - NSWidth(_initialFrame)) * factor;
currentRect.size.height += (NSHeight(_finalFrame) - NSHeight(_initialFrame)) * factor;
return currentRect;
}
static CGFloat squaredDistance(NSPoint point1, NSPoint point2)
{
CGFloat deltaX = point1.x - point2.x;
CGFloat deltaY = point1.y - point2.y;
return deltaX * deltaX + deltaY * deltaY;
}
@implementation WebWindowScaleAnimation
- (id)init
{
self = [super init];
if (!self)
return nil;
#ifndef BUILDING_ON_TIGER
[self setAnimationBlockingMode:NSAnimationNonblockingThreaded];
#endif
[self setFrameRate:60.];
return self;
}
- (id)initWithHintedDuration:(NSTimeInterval)duration window:(NSWindow *)window initalFrame:(NSRect)initialFrame finalFrame:(NSRect)finalFrame
{
self = [self init];
if (!self)
return nil;
_hintedDuration = duration;
_window = window;
_initialFrame = initialFrame;
_finalFrame = finalFrame;
_realFrame = [window frame];
return self;
}
- (void) dealloc
{
[_subAnimation release];
[super dealloc];
}
- (void)setDuration:(NSTimeInterval)duration
{
[super setDuration:WebWindowAnimationDurationFromDuration(duration)];
}
- (void)setWindow:(NSWindow *)window
{
_window = window;
}
- (float)currentValue
{
return 0.5 - 0.5 * cos(M_PI * (1 - [self currentProgress]));
}
- (NSRect)currentFrame
{
return scaledRect(_finalFrame, _initialFrame, [self currentValue]);
}
- (void)setCurrentProgress:(NSAnimationProgress)progress
{
if (!_window)
return;
[super setCurrentProgress:progress];
NSRect currentRect = [self currentFrame];
#ifndef BUILDING_ON_TIGER
WKWindowSetScaledFrame(_window, currentRect, _realFrame);
#else
[_window setFrame:currentRect display:YES];
#endif
[_subAnimation setCurrentProgress:progress];
}
- (void)setSubAnimation:(NSAnimation *)animation
{
id oldAnimation = _subAnimation;
_subAnimation = [animation retain];
[oldAnimation release];
}
- (NSTimeInterval)additionalDurationNeededToReachFinalFrame
{
static const CGFloat maxAdditionalDuration = 1.0;
static const CGFloat speedFactor = 0.0001;
CGFloat maxDist = squaredDistance(_initialFrame.origin, _finalFrame.origin);
CGFloat dist;
dist = squaredDistance(NSMakePoint(NSMaxX(_initialFrame), NSMinY(_initialFrame)), NSMakePoint(NSMaxX(_finalFrame), NSMinY(_finalFrame)));
if (dist > maxDist)
maxDist = dist;
dist = squaredDistance(NSMakePoint(NSMaxX(_initialFrame), NSMaxY(_initialFrame)), NSMakePoint(NSMaxX(_finalFrame), NSMaxY(_finalFrame)));
if (dist > maxDist)
maxDist = dist;
dist = squaredDistance(NSMakePoint(NSMinX(_initialFrame), NSMinY(_initialFrame)), NSMakePoint(NSMinX(_finalFrame), NSMinY(_finalFrame)));
if (dist > maxDist)
maxDist = dist;
return MIN(sqrt(maxDist) * speedFactor, maxAdditionalDuration);
}
- (void)startAnimation
{
// Compute extra time
if (_hintedDuration)
[self setDuration:_hintedDuration + [self additionalDurationNeededToReachFinalFrame]];
[super startAnimation];
}
- (void)stopAnimation
{
_window = nil;
[super stopAnimation];
[_subAnimation stopAnimation];
}
@end
@implementation WebWindowFadeAnimation
- (id)init
{
self = [super init];
if (!self)
return nil;
#ifndef BUILDING_ON_TIGER
[self setAnimationBlockingMode:NSAnimationNonblockingThreaded];
#endif
[self setFrameRate:60];
[self setAnimationCurve:NSAnimationEaseInOut];
return self;
}
- (id)initWithDuration:(NSTimeInterval)duration window:(NSWindow *)window initialAlpha:(CGFloat)initialAlpha finalAlpha:(CGFloat)finalAlpha
{
self = [self init];
if (!self)
return nil;
_window = window;
_initialAlpha = initialAlpha;
_finalAlpha = finalAlpha;
return self;
}
- (void)setDuration:(NSTimeInterval)duration
{
[super setDuration:WebWindowAnimationDurationFromDuration(duration)];
}
- (CGFloat)currentAlpha
{
return MAX(0.0, MIN(1.0, _initialAlpha + [self currentValue] * (_finalAlpha - _initialAlpha)));
}
- (void)setCurrentProgress:(NSAnimationProgress)progress
{
if (_isStopped)
return;
ASSERT(_window);
[super setCurrentProgress:progress];
#ifndef BUILDING_ON_TIGER
WKWindowSetAlpha(_window, [self currentAlpha]);
#else
[_window setAlphaValue:[self currentAlpha]];
#endif
}
- (void)setWindow:(NSWindow*)window
{
_window = window;
}
- (void)stopAnimation
{
// This is relevant when we are a sub animation of a scale animation.
// In this case we are hosted in the animated thread of the parent
// and even after [super stopAnimation], the parent might call
// setCurrrentProgress.
_isStopped = YES;
[super stopAnimation];
}
@end
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