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//
// GTMNSAnimatablePropertyContainer.m
//
// Copyright (c) 2010 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import "GTMNSAnimatablePropertyContainer.h"
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
@interface GTMAnimatorStopper : NSObject {
@private
NSObject<NSAnimatablePropertyContainer> *container_;
}
@end
@implementation GTMAnimatorStopper
- (id)initWithAnimatablePropertyContainer:(NSObject<NSAnimatablePropertyContainer>*) container {
if ((self = [super init])) {
container_ = [container retain];
}
return self;
}
- (void)dealloc {
[container_ release];
[super dealloc];
}
- (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector {
return [container_ methodSignatureForSelector:aSelector];
}
- (void)forwardInvocation:(NSInvocation *)anInvocation {
SEL selector = [anInvocation selector];
NSString *selectorName = NSStringFromSelector(selector);
// NSWindow animator handles setFrame:display: which is an odd case
// for animator. All other methods take just a key value, so we convert
// this to it's equivalent key value.
if ([selectorName isEqual:@"setFrame:display:"]) {
selectorName = @"setFrame:";
}
// Check to make sure our selector is valid (starts with set and has a
// single : at the end.
NSRange colonRange = [selectorName rangeOfString:@":"];
NSUInteger selectorLength = [selectorName length];
if ([selectorName hasPrefix:@"set"]
&& colonRange.location == selectorLength - 1
&& selectorLength > 4) {
// transform our selector into a keyValue by removing the set
// and the colon and converting the first char down to lowercase.
NSString *keyValue = [selectorName substringFromIndex:3];
NSString *firstChar = [[keyValue substringToIndex:1] lowercaseString];
NSRange rest = NSMakeRange(1, [keyValue length] - 2);
NSString *restOfKey = [keyValue substringWithRange:rest];
keyValue = [firstChar stringByAppendingString:restOfKey];
// Save a copy of our old animations.
NSDictionary *oldAnimations
= [[[container_ animations] copy] autorelease];
// For frame the animator doesn't actually animate the rect but gets
// animators for the size and the origin independently. In case this changes
// in the future (similar to bounds), we will stop the animations for the
// frame as well as the frameSize and frameOrigin.
NSDictionary *animations = nil;
NSNull *null = [NSNull null];
if ([keyValue isEqual:@"frame"]) {
animations = [NSDictionary dictionaryWithObjectsAndKeys:
null, @"frame",
null, @"frameSize",
null, @"frameOrigin", nil];
} else {
animations = [NSDictionary dictionaryWithObject:null forKey:keyValue];
}
// Set our animations to NULL which will force them to stop.
[container_ setAnimations:animations];
// Call our original invocation on our animator.
[anInvocation setTarget:[container_ animator]];
[anInvocation invoke];
// Reset the animations.
[container_ setAnimations:oldAnimations];
} else {
[self doesNotRecognizeSelector:selector];
}
}
@end
@implementation NSView(GTMNSAnimatablePropertyContainer)
- (id)gtm_animatorStopper {
return [[[GTMAnimatorStopper alloc] initWithAnimatablePropertyContainer:self]
autorelease];
}
@end
@implementation NSWindow(GTMNSAnimatablePropertyContainer)
- (id)gtm_animatorStopper {
return [[[GTMAnimatorStopper alloc] initWithAnimatablePropertyContainer:self]
autorelease];
}
@end
#endif // MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
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