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//
// GTMNSAnimation+Duration.h
//
// Copyright 2009 Google Inc.
//
// 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 <AppKit/AppKit.h>
#import "GTMDefines.h"
// Given a "normal" duration for an animation, return what it should be based
// on the current system state. For example, holding down the shift and/or
// control keys modifies the normal duration for an animation making it slower.
// Currently only modifies the duration if the current event is masked by
// eventMask and only the control and/or shift modifiers are down.
// The shift modifier is ignored if it is applied to a Tab key down.
// Tab and shift-tab are often used for navigating around UI elements,
// and in the majority of cases slowing down the animations while navigating
// around UI elements is not desired.
NSTimeInterval GTMModifyDurationBasedOnCurrentState(NSTimeInterval duration,
NSUInteger eventMask);
// The standard eventmask that you want for the methods in this file. Some apps
// (eg Chrome) may not want to have animations fire on key strokes, so will use
// just NSLeftMouseUpMask instead.
extern const NSUInteger kGTMLeftMouseUpAndKeyDownMask;
// Categories for changing the duration of an animation based on the current
// event. Right now they track the state of the shift and control keys to slow
// down animations similar to how minimize window animations occur.
@interface NSAnimation (GTMNSAnimationDurationAdditions)
// Note that using this initializer will set the duration of the animation
// based on the current event when the animation is created. If the animation
// is to be reused, the duration for the event should be reset with
// gtm_setDuration each time the animation is started.
// See notes for GTMModifyDurationBasedOnCurrentState for more info.
- (id)gtm_initWithDuration:(NSTimeInterval)duration
eventMask:(NSUInteger)eventMask
animationCurve:(NSAnimationCurve)animationCurve;
// Sets the duration by taking the duration passed in and calling
// GTMModifyDurationBasedOnCurrentState to calculate the real duration.
// See notes for GTMModifyDurationBasedOnCurrentState for more info.
- (void)gtm_setDuration:(NSTimeInterval)duration
eventMask:(NSUInteger)eventMask;
@end
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
#import <QuartzCore/QuartzCore.h>
@interface NSAnimationContext (GTMNSAnimationDurationAdditions)
// Sets the duration by taking the duration passed in and calling
// GTMModifyDurationBasedOnCurrentState to calculate the real duration.
// See notes for GTMModifyDurationBasedOnCurrentState for more info.
- (void)gtm_setDuration:(NSTimeInterval)duration
eventMask:(NSUInteger)eventMask;
@end
@interface CAAnimation (GTMCAAnimationDurationAdditions)
// Sets the duration by taking the duration passed in and calling
// GTMModifyDurationBasedOnCurrentState to calculate the real duration.
// See notes for GTMModifyDurationBasedOnCurrentState for more info.
- (void)gtm_setDuration:(CFTimeInterval)duration
eventMask:(NSUInteger)events;
@end
#endif // MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
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