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/*
* Copyright (C) 2005, 2006 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 "WebPDFRepresentation.h"
#import "WebDataSourcePrivate.h"
#import "WebFrame.h"
#import "WebJSPDFDoc.h"
#import "WebNSObjectExtras.h"
#import "WebPDFDocumentExtras.h"
#import "WebPDFView.h"
#import "WebTypesInternal.h"
#import <JavaScriptCore/Assertions.h>
#import <JavaScriptCore/JSContextRef.h>
#import <JavaScriptCore/JSStringRef.h>
#import <JavaScriptCore/JSStringRefCF.h>
@implementation WebPDFRepresentation
+ (NSArray *)postScriptMIMETypes
{
return [NSArray arrayWithObjects:
@"application/postscript",
nil];
}
+ (NSArray *)supportedMIMETypes
{
return [[[self class] postScriptMIMETypes] arrayByAddingObjectsFromArray:
[NSArray arrayWithObjects:
@"text/pdf",
@"application/pdf",
nil]];
}
+ (Class)PDFDocumentClass
{
static Class PDFDocumentClass = nil;
if (PDFDocumentClass == nil) {
PDFDocumentClass = [[WebPDFView PDFKitBundle] classNamed:@"PDFDocument"];
if (PDFDocumentClass == nil) {
LOG_ERROR("Couldn't find PDFDocument class in PDFKit.framework");
}
}
return PDFDocumentClass;
}
- (void)setDataSource:(WebDataSource *)dataSource
{
}
- (void)receivedData:(NSData *)data withDataSource:(WebDataSource *)dataSource
{
}
- (void)receivedError:(NSError *)error withDataSource:(WebDataSource *)dataSource
{
}
- (NSData *)convertPostScriptDataSourceToPDF:(NSData *)data
{
// Convert PostScript to PDF using Quartz 2D API
// http://developer.apple.com/documentation/GraphicsImaging/Conceptual/drawingwithquartz2d/dq_ps_convert/chapter_16_section_1.html
CGPSConverterCallbacks callbacks = { 0, 0, 0, 0, 0, 0, 0, 0 };
CGPSConverterRef converter = CGPSConverterCreate(0, &callbacks, 0);
ASSERT(converter);
CGDataProviderRef provider = CGDataProviderCreateWithCFData((CFDataRef)data);
ASSERT(provider);
CFMutableDataRef result = CFDataCreateMutable(kCFAllocatorDefault, 0);
ASSERT(result);
CGDataConsumerRef consumer = CGDataConsumerCreateWithCFData(result);
ASSERT(consumer);
// Error handled by detecting zero-length 'result' in caller
CGPSConverterConvert(converter, provider, consumer, 0);
CFRelease(converter);
CFRelease(provider);
CFRelease(consumer);
return WebCFAutorelease(result);
}
- (void)finishedLoadingWithDataSource:(WebDataSource *)dataSource
{
NSData *data = [dataSource data];
NSArray *postScriptMIMETypes = [[self class] postScriptMIMETypes];
NSString *mimeType = [dataSource _responseMIMEType];
if ([postScriptMIMETypes containsObject:mimeType]) {
data = [self convertPostScriptDataSourceToPDF:data];
if ([data length] == 0)
return;
}
WebPDFView *view = (WebPDFView *)[[[dataSource webFrame] frameView] documentView];
PDFDocument *doc = [[[[self class] PDFDocumentClass] alloc] initWithData:data];
[view setPDFDocument:doc];
NSArray *scripts = allScriptsInPDFDocument(doc);
[doc release];
doc = nil;
NSUInteger scriptCount = [scripts count];
if (!scriptCount)
return;
JSGlobalContextRef ctx = JSGlobalContextCreate(0);
JSObjectRef jsPDFDoc = makeJSPDFDoc(ctx, dataSource);
for (NSUInteger i = 0; i < scriptCount; ++i) {
JSStringRef script = JSStringCreateWithCFString((CFStringRef)[scripts objectAtIndex:i]);
JSEvaluateScript(ctx, script, jsPDFDoc, 0, 0, 0);
JSStringRelease(script);
}
JSGlobalContextRelease(ctx);
}
- (BOOL)canProvideDocumentSource
{
return NO;
}
- (NSString *)documentSource
{
return nil;
}
- (NSString *)title
{
return nil;
}
@end
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