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      1 /*
      2  * Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #import "WebPolicyDelegatePrivate.h"
     30 
     31 #import <WebCore/FrameLoaderTypes.h>
     32 #import <objc/objc-runtime.h>
     33 
     34 using namespace WebCore;
     35 
     36 NSString *WebActionButtonKey = @"WebActionButtonKey";
     37 NSString *WebActionElementKey = @"WebActionElementKey";
     38 NSString *WebActionFormKey = @"WebActionFormKey";
     39 NSString *WebActionModifierFlagsKey = @"WebActionModifierFlagsKey";
     40 NSString *WebActionNavigationTypeKey = @"WebActionNavigationTypeKey";
     41 NSString *WebActionOriginalURLKey = @"WebActionOriginalURLKey";
     42 
     43 @interface WebPolicyDecisionListenerPrivate : NSObject
     44 {
     45 @public
     46     id target;
     47     SEL action;
     48 }
     49 
     50 - (id)initWithTarget:(id)target action:(SEL)action;
     51 
     52 @end
     53 
     54 @implementation WebPolicyDecisionListenerPrivate
     55 
     56 - (id)initWithTarget:(id)t action:(SEL)a
     57 {
     58     self = [super init];
     59     if (!self)
     60         return nil;
     61     target = [t retain];
     62     action = a;
     63     return self;
     64 }
     65 
     66 - (void)dealloc
     67 {
     68     [target release];
     69     [super dealloc];
     70 }
     71 
     72 @end
     73 
     74 @implementation WebPolicyDecisionListener
     75 
     76 - (id)_initWithTarget:(id)target action:(SEL)action
     77 {
     78     self = [super init];
     79     if (!self)
     80         return nil;
     81     _private = [[WebPolicyDecisionListenerPrivate alloc] initWithTarget:target action:action];
     82     return self;
     83 }
     84 
     85 -(void)dealloc
     86 {
     87     [_private release];
     88     [super dealloc];
     89 }
     90 
     91 - (void)_usePolicy:(PolicyAction)policy
     92 {
     93     if (_private->target)
     94         ((void (*)(id, SEL, PolicyAction))objc_msgSend)(_private->target, _private->action, policy);
     95 }
     96 
     97 - (void)_invalidate
     98 {
     99     id target = _private->target;
    100     _private->target = nil;
    101     [target release];
    102 }
    103 
    104 // WebPolicyDecisionListener implementation
    105 
    106 - (void)use
    107 {
    108     [self _usePolicy:PolicyUse];
    109 }
    110 
    111 - (void)ignore
    112 {
    113     [self _usePolicy:PolicyIgnore];
    114 }
    115 
    116 - (void)download
    117 {
    118     [self _usePolicy:PolicyDownload];
    119 }
    120 
    121 @end
    122