/*

 * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.

 * Copyright (C) 2006 David Smith (catfish.man@gmail.com)

 *

 * 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. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "WebDelegateImplementationCaching.h"

#import "WebKitLogging.h"

#import "WebView.h"

#import "WebViewData.h"

#import <objc/objc-runtime.h>

@implementation WebView (WebDelegateImplementationCaching)

WebResourceDelegateImplementationCache* WebViewGetResourceLoadDelegateImplementations(WebView *webView)

{

    static WebResourceDelegateImplementationCache empty;

    if (!webView)

        return ∅

    return &webView->_private->resourceLoadDelegateImplementations;

}

WebFrameLoadDelegateImplementationCache* WebViewGetFrameLoadDelegateImplementations(WebView *webView)

{

    static WebFrameLoadDelegateImplementationCache empty;

    if (!webView)

        return ∅

    return &webView->_private->frameLoadDelegateImplementations;

}

WebScriptDebugDelegateImplementationCache* WebViewGetScriptDebugDelegateImplementations(WebView *webView)

{

    static WebScriptDebugDelegateImplementationCache empty;

    if (!webView)

        return ∅

    return &webView->_private->scriptDebugDelegateImplementations;

}

WebHistoryDelegateImplementationCache* WebViewGetHistoryDelegateImplementations(WebView *webView)

{

    static WebHistoryDelegateImplementationCache empty;

    if (!webView)

        return ∅

    return &webView->_private->historyDelegateImplementations;

}

// We use these functions to call the delegates and block exceptions. These functions are

// declared inside a WebView category to get direct access to the delegate data memebers,

// preventing more ObjC message dispatch and compensating for the expense of the @try/@catch.

typedef float (*ObjCMsgSendFPRet)(id, SEL, ...);

#if defined(__i386__)

static const ObjCMsgSendFPRet objc_msgSend_float_return = reinterpret_cast<ObjCMsgSendFPRet>(objc_msgSend_fpret);

#else

static const ObjCMsgSendFPRet objc_msgSend_float_return = reinterpret_cast<ObjCMsgSendFPRet>(objc_msgSend);

#endif

static inline id CallDelegate(WebView *self, id delegate, SEL selector)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend(delegate, selector, self);

    @try {

        return objc_msgSend(delegate, selector, self);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend(delegate, selector, self, object);

    @try {

        return objc_msgSend(delegate, selector, self, object);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(WebView *self, id delegate, SEL selector, NSRect rect)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return reinterpret_cast<id (*)(id, SEL, WebView *, NSRect)>(objc_msgSend)(delegate, selector, self, rect);

    @try {

        return reinterpret_cast<id (*)(id, SEL, WebView *, NSRect)>(objc_msgSend)(delegate, selector, self, rect);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object1, id object2)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend(delegate, selector, self, object1, object2);

    @try {

        return objc_msgSend(delegate, selector, self, object1, object2);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object, BOOL boolean)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend(delegate, selector, self, object, boolean);

    @try {

        return objc_msgSend(delegate, selector, self, object, boolean);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object1, id object2, id object3)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend(delegate, selector, self, object1, object2, object3);

    @try {

        return objc_msgSend(delegate, selector, self, object1, object2, object3);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(WebView *self, id delegate, SEL selector, id object, NSUInteger integer)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend(delegate, selector, self, object, integer);

    @try {

        return objc_msgSend(delegate, selector, self, object, integer);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline float CallDelegateReturningFloat(WebView *self, id delegate, SEL selector)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return 0.0f;

    if (!self->_private->catchesDelegateExceptions)

        return objc_msgSend_float_return(delegate, selector, self);

    @try {

        return objc_msgSend_float_return(delegate, selector, self);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return 0.0f;

}

static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return result;

    if (!self->_private->catchesDelegateExceptions)

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *)>(objc_msgSend)(delegate, selector, self);

    @try {

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *)>(objc_msgSend)(delegate, selector, self);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return result;

}

static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return result;

    if (!self->_private->catchesDelegateExceptions)

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id)>(objc_msgSend)(delegate, selector, self, object);

    @try {

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id)>(objc_msgSend)(delegate, selector, self, object);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return result;

}

static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object, BOOL boolean)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return result;

    if (!self->_private->catchesDelegateExceptions)

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL)>(objc_msgSend)(delegate, selector, self, object, boolean);

    @try {

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL)>(objc_msgSend)(delegate, selector, self, object, boolean);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return result;

}

static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object, BOOL boolean, id object2)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return result;

    if (!self->_private->catchesDelegateExceptions)

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL, id)>(objc_msgSend)(delegate, selector, self, object, boolean, object2);

    @try {

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, BOOL, id)>(objc_msgSend)(delegate, selector, self, object, boolean, object2);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return result;

}

static inline BOOL CallDelegateReturningBoolean(BOOL result, WebView *self, id delegate, SEL selector, id object1, id object2)

{

    if (!delegate || ![delegate respondsToSelector:selector])

        return result;

    if (!self->_private->catchesDelegateExceptions)

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id)>(objc_msgSend)(delegate, selector, self, object1, object2);

    @try {

        return reinterpret_cast<BOOL (*)(id, SEL, WebView *, id, id)>(objc_msgSend)(delegate, selector, self, object1, object2);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return result;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self);

    @try {

        return implementation(delegate, selector, self);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object);

    @try {

        return implementation(delegate, selector, self, object);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, object2);

    @try {

        return implementation(delegate, selector, self, object1, object2);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2, id object3)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, object2, object3);

    @try {

        return implementation(delegate, selector, self, object1, object2, object3);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2, id object3, id object4)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, object2, object3, object4);

    @try {

        return implementation(delegate, selector, self, object1, object2, object3, object4);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer, id object2)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, integer, object2);

    @try {

        return implementation(delegate, selector, self, object1, integer, object2);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer1, NSInteger integer2, id object2)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, integer1, integer2, object2);

    @try {

        return implementation(delegate, selector, self, object1, integer1, integer2, object2);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, id object2, NSInteger integer, id object3)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, object2, integer, object3);

    @try {

        return implementation(delegate, selector, self, object1, object2, integer, object3);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer1, id object2, NSInteger integer2, id object3)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, integer1, object2, integer2, object3);

    @try {

        return implementation(delegate, selector, self, object1, integer1, object2, integer2, object3);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSInteger integer, id object2, id object3, id object4)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, integer, object2, object3, object4);

    @try {

        return implementation(delegate, selector, self, object1, integer, object2, object3, object4);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

static inline id CallDelegate(IMP implementation, WebView *self, id delegate, SEL selector, id object1, NSTimeInterval interval, id object2, id object3)

{

    if (!delegate)

        return nil;

    if (!self->_private->catchesDelegateExceptions)

        return implementation(delegate, selector, self, object1, interval, object2, object3);

    @try {

        return implementation(delegate, selector, self, object1, interval, object2, object3);

    } @catch(id exception) {

        ReportDiscardedDelegateException(selector, exception);

    }

    return nil;

}

id CallUIDelegate(WebView *self, SEL selector)

{

    return CallDelegate(self, self->_private->UIDelegate, selector);

}

id CallUIDelegate(WebView *self, SEL selector, id object)

{

    return CallDelegate(self, self->_private->UIDelegate, selector, object);

}

id CallUIDelegate(WebView *self, SEL selector, id object, BOOL boolean)

{

    return CallDelegate(self, self->_private->UIDelegate, selector, object, boolean);

}

id CallUIDelegate(WebView *self, SEL selector, NSRect rect)

{

    return CallDelegate(self, self->_private->UIDelegate, selector, rect);

}

id CallUIDelegate(WebView *self, SEL selector, id object1, id object2)

{

    return CallDelegate(self, self->_private->UIDelegate, selector, object1, object2);

}

id CallUIDelegate(WebView *self, SEL selector, id object1, id object2, id object3)

{

    return CallDelegate(self, self->_private->UIDelegate, selector, object1, object2, object3);

}

id CallUIDelegate(WebView *self, SEL selector, id object, NSUInteger integer)

{

    return CallDelegate(self, self->_private->UIDelegate, selector, object, integer);

}

float CallUIDelegateReturningFloat(WebView *self, SEL selector)

{

    return CallDelegateReturningFloat(self, self->_private->UIDelegate, selector);

}

BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector)

{

    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector);

}

BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object)

{

    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object);

}

BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object, BOOL boolean)

{

    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object, boolean);

}

BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object, BOOL boolean, id object2)

{

    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object, boolean, object2);

}

BOOL CallUIDelegateReturningBoolean(BOOL result, WebView *self, SEL selector, id object1, id object2)

{

    return CallDelegateReturningBoolean(result, self, self->_private->UIDelegate, selector, object1, object2);

}

id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector)

{

    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector);

}

id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object)

{

    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object);

}

id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2)

{

    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, object2);

}

id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3)

{

    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, object2, object3);

}

id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3, id object4)

{

    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, object2, object3, object4);

}

id CallFrameLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSTimeInterval interval, id object2, id object3)

{

    return CallDelegate(implementation, self, self->_private->frameLoadDelegate, selector, object1, interval, object2, object3);

}

id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2)

{

    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2);

}

id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3)

{

    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2, object3);

}

id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, id object2, id object3, id object4)

{

    return CallDelegate(implementation, self, self->_private->resourceProgressDelegate, selector, object1, object2, object3, object4);

}

id CallResourceLoadDelegate(IMP implementation, WebView *self, SEL selector, id object1, NSInteger integer, id object2)