/*

 * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.

 *

 * 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 <WebKit/WebKitErrors.h>

#import <WebKit/WebKitErrorsPrivate.h>

#import <WebKit/WebLocalizableStrings.h>

#import <WebKit/WebNSURLExtras.h>

#import <pthread.h>

NSString *WebKitErrorDomain = @"WebKitErrorDomain";

NSString * const WebKitErrorMIMETypeKey =               @"WebKitErrorMIMETypeKey";

NSString * const WebKitErrorPlugInNameKey =             @"WebKitErrorPlugInNameKey";

NSString * const WebKitErrorPlugInPageURLStringKey =    @"WebKitErrorPlugInPageURLStringKey";

// Policy errors

#define WebKitErrorDescriptionCannotShowMIMEType UI_STRING("Cannot show content with specified mime type", "WebKitErrorCannotShowMIMEType description")

#define WebKitErrorDescriptionCannotShowURL UI_STRING("Cannot show URL", "WebKitErrorCannotShowURL description")

#define WebKitErrorDescriptionFrameLoadInterruptedByPolicyChange UI_STRING("Frame load interrupted", "WebKitErrorFrameLoadInterruptedByPolicyChange description")

#define WebKitErrorDescriptionCannotUseRestrictedPort UI_STRING("Not allowed to use restricted network port", "WebKitErrorCannotUseRestrictedPort description")

// Plug-in and java errors

#define WebKitErrorDescriptionCannotFindPlugin UI_STRING("Cannot find plug-in", "WebKitErrorCannotFindPlugin description")

#define WebKitErrorDescriptionCannotLoadPlugin UI_STRING("Cannot load plug-in", "WebKitErrorCannotLoadPlugin description")

#define WebKitErrorDescriptionJavaUnavailable UI_STRING("Java is unavailable", "WebKitErrorJavaUnavailable description")

#define WebKitErrorDescriptionPlugInCancelledConnection UI_STRING("Plug-in cancelled", "WebKitErrorPlugInCancelledConnection description")

#define WebKitErrorDescriptionPlugInWillHandleLoad UI_STRING("Plug-in handled load", "WebKitErrorPlugInWillHandleLoad description")

static pthread_once_t registerErrorsControl = PTHREAD_ONCE_INIT;

static void registerErrors(void);

@implementation NSError (WebKitExtras)

static NSMutableDictionary *descriptions = nil;

+ (void)_registerWebKitErrors

{

    pthread_once(&registerErrorsControl, registerErrors);

}

-(id)_webkit_initWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL

{

    NSDictionary *descriptionsDict;

    NSString *localizedDesc;

    NSDictionary *dict;

    // insert a localized string here for those folks not savvy to our category methods

    descriptionsDict = [descriptions objectForKey:domain];

    localizedDesc = descriptionsDict ? [descriptionsDict objectForKey:[NSNumber numberWithInt:code]] : nil;

    dict = [NSDictionary dictionaryWithObjectsAndKeys:

        URL, @"NSErrorFailingURLKey",

        [URL absoluteString], @"NSErrorFailingURLStringKey",

        localizedDesc, NSLocalizedDescriptionKey,

        nil];

    return [self initWithDomain:domain code:code userInfo:dict];

}

+(id)_webkit_errorWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL

{

    return [[[self alloc] _webkit_initWithDomain:domain code:code URL:URL] autorelease];

}

+ (NSError *)_webKitErrorWithDomain:(NSString *)domain code:(int)code URL:(NSURL *)URL

{

    [self _registerWebKitErrors];

    return [self _webkit_errorWithDomain:domain code:code URL:URL];

}

+ (NSError *)_webKitErrorWithCode:(int)code failingURL:(NSString *)URLString

{

    return [self _webKitErrorWithDomain:WebKitErrorDomain code:code URL:[NSURL _web_URLWithUserTypedString:URLString]];

}

- (id)_initWithPluginErrorCode:(int)code

                    contentURL:(NSURL *)contentURL

                 pluginPageURL:(NSURL *)pluginPageURL

                    pluginName:(NSString *)pluginName

                      MIMEType:(NSString *)MIMEType

{

    [[self class] _registerWebKitErrors];

    NSMutableDictionary *userInfo = [[NSMutableDictionary alloc] init];

    if (contentURL) {

        [userInfo setObject:contentURL forKey:@"NSErrorFailingURLKey"];

        [userInfo setObject:[contentURL _web_userVisibleString] forKey:NSErrorFailingURLStringKey];

    }

    if (pluginPageURL) {

        [userInfo setObject:[pluginPageURL _web_userVisibleString] forKey:WebKitErrorPlugInPageURLStringKey];

    }

    if (pluginName) {

        [userInfo setObject:pluginName forKey:WebKitErrorPlugInNameKey];

    }

    if (MIMEType) {

        [userInfo setObject:MIMEType forKey:WebKitErrorMIMETypeKey];

    }

    NSDictionary *userInfoCopy = [userInfo count] > 0 ? [[NSDictionary alloc] initWithDictionary:userInfo] : nil;

    [userInfo release];

    NSError *error = [self initWithDomain:WebKitErrorDomain code:code userInfo:userInfoCopy];

    [userInfoCopy release];

    return error;

}

+ (void)_webkit_addErrorsWithCodesAndDescriptions:(NSDictionary *)dictionary inDomain:(NSString *)domain

{

    if (!descriptions)

        descriptions = [[NSMutableDictionary alloc] init];

    [descriptions setObject:dictionary forKey:domain];

}

static void registerErrors()

{

    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:

        // Policy errors

        WebKitErrorDescriptionCannotShowMIMEType,                   [NSNumber numberWithInt: WebKitErrorCannotShowMIMEType],

        WebKitErrorDescriptionCannotShowURL,                        [NSNumber numberWithInt: WebKitErrorCannotShowURL],

        WebKitErrorDescriptionFrameLoadInterruptedByPolicyChange,   [NSNumber numberWithInt: WebKitErrorFrameLoadInterruptedByPolicyChange],

        WebKitErrorDescriptionCannotUseRestrictedPort,              [NSNumber numberWithInt: WebKitErrorCannotUseRestrictedPort],

        // Plug-in and java errors

        WebKitErrorDescriptionCannotFindPlugin,                     [NSNumber numberWithInt: WebKitErrorCannotFindPlugIn],

        WebKitErrorDescriptionCannotLoadPlugin,                     [NSNumber numberWithInt: WebKitErrorCannotLoadPlugIn],

        WebKitErrorDescriptionJavaUnavailable,                      [NSNumber numberWithInt: WebKitErrorJavaUnavailable],

        WebKitErrorDescriptionPlugInCancelledConnection,            [NSNumber numberWithInt: WebKitErrorPlugInCancelledConnection],

        WebKitErrorDescriptionPlugInWillHandleLoad,                 [NSNumber numberWithInt: WebKitErrorPlugInWillHandleLoad],

        nil];

    [NSError _webkit_addErrorsWithCodesAndDescriptions:dict inDomain:WebKitErrorDomain];

    [pool drain];

}

@end