114 lines
4.7 KiB
Objective-C
114 lines
4.7 KiB
Objective-C
/*
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* Copyright (c) 2007-2008 Dave Dribin
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* This class is based on CInvocationGrabber:
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*
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* Copyright (c) 2007, Toxic Software
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the Toxic Software nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#import <Foundation/Foundation.h>
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/*
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* @class DDInvocationGrabber
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* @discussion DDInvocationGrabber is a helper object that makes it very easy to construct instances of NSInvocation for later use. The object is inspired by NSUndoManager's prepareWithInvocationTarget method. To use a DDInvocationGrabber object, you set its target to some object, then send it a message as if it were the target object (the DDInvocationGrabber object acts as a proxy), if the target message understands the message the DDInvocationGrabber object stores the message invocation.
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DDInvocationGrabber *theGrabber = [DDInvocationGrabber invocationGrabber];
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[theGrabber setTarget:someObject]
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[theGrabber doSomethingWithParameter:someParameter]; // Send messages to 'theGrabber' as if it were 'someObject'
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NSInvocation *theInvocation = [theGrabber invocation];
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A slightly more concise version (using the covenience category) follows:
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DDInvocationGrabber *theGrabber = [DDInvocationGrabber invocationGrabber];
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[[theGrabber prepareWithInvocationTarget:someObject] doSomethingWithParameter:someParameter];
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NSInvocation *theInvocation = [theGrabber invocation];
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*/
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@interface DDInvocationGrabber : NSProxy
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{
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id _target;
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NSInvocation * _invocation;
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BOOL _forwardInvokesOnMainThread;
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BOOL _waitUntilDone;
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}
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/*
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* @method invocationGrabber
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* @abstract Returns a newly allocated, inited, autoreleased DDInvocationGrabber object.
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*/
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+ (id)invocationGrabber;
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- (id)target;
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- (void)setTarget:(id)inTarget;
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- (NSInvocation *)invocation;
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- (void)setInvocation:(NSInvocation *)inInvocation;
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- (BOOL)forwardInvokesOnMainThread;
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- (void)setForwardInvokesOnMainThread:(BOOL)forwardInvokesOnMainThread;
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- (BOOL)waitUntilDone;
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- (void)setWaitUntilDone:(BOOL)waitUntilDone;
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@end
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@interface DDInvocationGrabber (DDInvocationGrabber_Conveniences)
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/*
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* @method prepareWithInvocationTarget:
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* @abstract Sets the target object of the receiver and returns itself. The sender can then send a message to the
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*/
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- (id)prepareWithInvocationTarget:(id)inTarget;
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@end
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