/*

    File:       NavServicesHandling.c

    Contains:   Code to handle the save dialog for our sample application.

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                Apple Software without specific prior written permission from Apple.  Except as

                expressly stated in this notice, no other rights or licenses, express or implied,

                are granted by Apple herein, including but not limited to any patent rights that

                may be infringed by your derivative works or by other works in which the Apple

                Software may be incorporated.

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO

                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR

                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN

                COMBINATION WITH YOUR PRODUCTS.

                IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

                CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE

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                ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION

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    Copyright © 1999-2004 Apple Computer, Inc., All Rights Reserved

*/

#include "NavServicesHandling.h"

#include "CSkDocStorage.h"

#include "CSkWindow.h"

#define kFileCreator            'prvw'

#define kFileTypePDF            'PDF '

#define kFileTypePDFCFStr       CFSTR("%@.pdf")     // our format string for making the save as file name

// these are values are used to keep "unique" set of preferences for each Nav dialog,

// for example: using more than one NavChooseObject style dialog in one application:

//#define kSavePrefKey      1

// the structure we're going to give to the save dialog to hang our data off of

typedef struct OurSaveDialogData {  

    NavDialogRef    dialogRef;

    void*               documentDataP;

} OurSaveDialogData;

//-----------------------------------------------------------------------------------------------------------------------

static OSStatus MakePDFDocument(const DocStorage* docSt, CFURLRef url)  

{

    OSStatus                err         = -1;   // generic error code: watch console output!

    CGRect                  docBounds   = CGRectMake(0, 0, docSt->docSize.h, docSt->docSize.v);

    CFMutableDictionaryRef  dict        = CFDictionaryCreateMutable( kCFAllocatorDefault, 0,

                                                                    &kCFTypeDictionaryKeyCallBacks, 

                                                                    &kCFTypeDictionaryValueCallBacks); 

    if (dict != NULL) 

    {

        CGContextRef    ctx         = CGPDFContextCreateWithURL(url, &docBounds, dict);

        CFStringRef     stringRef;    // Add some producer information to our PDF file

        CopyWindowTitleAsCFString(docSt->ownerWindow, &stringRef);

        CFDictionaryAddValue(dict, CFSTR("Title"), stringRef);

        CFRelease(stringRef);

        CFDictionaryAddValue(dict, CFSTR("Creator"), CFSTR("CarbonSketch"));

        if (ctx != NULL)

        {

            DrawIntoPDFPage(ctx, docBounds, docSt, 1);

            CGContextRelease(ctx);

            err = noErr;

        }

        CFRelease(dict);

    }

    else 

    {

        fprintf(stderr, "CFDictionaryCreateMutable FAILED\n");

    }

    return err;

}

static OSStatus DoFSRefSave(const OurSaveDialogData* dialogDataP, NavReplyRecord* reply, AEDesc* actualDescP)

{

    OSStatus    err;

    FSRef   fileRefParent;

    err = AEGetDescData( actualDescP, &fileRefParent, sizeof( FSRef ) );

    if (err == noErr )

    {

        // get the name data and its length:    

        HFSUniStr255    nameBuffer;

        UniCharCount    sourceLength = 0;

        sourceLength = (UniCharCount)CFStringGetLength( reply->saveFileName );

        CFStringGetCharacters( reply->saveFileName, CFRangeMake( 0, sourceLength ),  (UniChar*)&nameBuffer.unicode );

        if ( sourceLength > 0 )

        {   

            if ( reply->replacing )

            {

                // delete the file we are replacing:

                FSRef fileToDelete;

                err = FSMakeFSRefUnicode( &fileRefParent, sourceLength, nameBuffer.unicode, kTextEncodingUnicodeDefault, &fileToDelete );

                if (err == noErr )

                {

                    err = FSDeleteObject( &fileToDelete );

                    if ( err == fBsyErr )

                    {

                        fprintf(stderr, "FSDeleteObject returned \"File Busy\" Error %d\n", fBsyErr);

                    }

                }

            }

            if ( err == noErr )

            {

                // create the file based on Unicode, but we can write the file's data with an FSSpec:

                FSSpec newFileSpec;

                // get the FSSpec back so we can write the file's data

                if ((err = FSCreateFileUnicode( &fileRefParent, sourceLength, 

                                                    nameBuffer.unicode,

                                                    kFSCatInfoNone,

                                                    NULL,

                                                    NULL,   

                                                    &newFileSpec)) == noErr)

                {

                    FInfo fileInfo = { kFileTypePDF, kFileCreator, 0, { 0, 0 }, 0 };

//                    fileInfo.fdType     = kFileTypePDF;

//                    fileInfo.fdCreator  = kFileCreator;

                    err = FSpSetFInfo( &newFileSpec, &fileInfo );

                    // now that we have the FSSpec, we can proceed with the save operation:

                    if (err == noErr)

                    {

                        FSRef fsRef;

                        err = FSpMakeFSRef(&newFileSpec, &fsRef);   // make an FSRef

                        if (!err)

                        {

                            CFURLRef saveURL = CFURLCreateFromFSRef(NULL, &fsRef);

                            if (saveURL)

                            {

                                // delete the file we just made for making the FSRef

                                err = FSpDelete(&newFileSpec);  

                                if (!err)

                                    err = MakePDFDocument(dialogDataP->documentDataP, saveURL);

                                if (err)

                                    fprintf(stderr, "MakePDFDocument returned error %d\n", (int)err);

                                else

                                {

                                    err = NavCompleteSave( reply, kNavTranslateInPlace );

                                    if (err)

                                        fprintf(stderr, "NavCompleteSave returned error %d\n", (int)err);

                                }

                                if (err) 

                                {

                                    // an error ocurred saving the file, so delete the copy left over:

                                    (void)FSpDelete( &newFileSpec );

                                }

                                CFRelease(saveURL);

                            }

                            else

                            {

                                // delete the file we just made for making the FSRef

                               (void)FSpDelete(&newFileSpec);

                                err = -1;

                                fprintf(stderr, "CFURLCreateFromFSRef FAILED\n");

                            }

                        }

                    }

                }

            }

        }

    }

    return err;

}

static pascal void NavEventProc( NavEventCallbackMessage callBackSelector, NavCBRecPtr callBackParms, void* callBackUD )

{

    OurSaveDialogData *dialogDataP = (OurSaveDialogData*)callBackUD;

    OSStatus    err = noErr;                

    switch ( callBackSelector )

    {

    case kNavCBUserAction:

    {

        NavReplyRecord  reply;

        NavUserAction   userAction = 0;

        if ((err = NavDialogGetReply( callBackParms->context, &reply )) == noErr )

        {

        OSStatus tempErr;

        userAction = NavDialogGetUserAction( callBackParms->context );

        switch ( userAction )

        {

            case kNavUserActionSaveAs:

            {

            if ( dialogDataP != NULL )

                        {

                AEDesc actualDesc;

                            err = AECoerceDesc( &reply.selection, typeFSRef, &actualDesc );

                if ( err == noErr )

                {   

                // the coercion succeeded as an FSRef, so use HFS+ APIs to save the file:

                err = DoFSRefSave( dialogDataP, &reply, &actualDesc);

                AEDisposeDesc( &actualDesc );

                }

            }

            break;

            }

            case kNavUserActionCancel:

                        break;

            case kNavUserActionNewFolder:

                        break;

        }

        tempErr = NavDisposeReply( &reply );

        if (!err)

            err = tempErr;

            }

            break;

    }

    case kNavCBTerminate:

    {

//      fprintf(stderr, "kNavCBTerminate\n");

        if ( dialogDataP != NULL )

        {

            if (dialogDataP->dialogRef)

            {

    //          fprintf(stderr, "  kNavCBTerminate: calling NavDialogDispose\n");

                NavDialogDispose(dialogDataP->dialogRef );

            }

            dialogDataP->dialogRef = NULL;

            free(dialogDataP);

        }

    }

    break;

    }

}

// this code originates from the NavServices sample code in the CarbonLib SDK

OSStatus SaveAsPDFDocument (WindowRef w, void* ourDataP)

{

    OSStatus            err = noErr;

    static NavEventUPP          gNavEventProc = NULL;       // event proc for our Nav Dialogs 

    NavDialogCreationOptions    dialogOptions;

    if (gNavEventProc == NULL)

    {

        gNavEventProc = NewNavEventUPP(NavEventProc);

        if (!gNavEventProc)

            return memFullErr;

    }

    err = NavGetDefaultDialogCreationOptions( &dialogOptions );

    if (err == noErr )

    {

    OurSaveDialogData*  dialogDataP = NULL;

    CFStringRef         tempString;

    CopyWindowTitleAsCFString(w, &tempString);

        dialogOptions.saveFileName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, kFileTypePDFCFStr, tempString);

    CFRelease(tempString);

    // make the dialog modal to our parent doc, AKA sheets

        dialogOptions.parentWindow = w;

    dialogOptions.modality = kWindowModalityWindowModal;

    dialogDataP = (OurSaveDialogData*)malloc(sizeof(OurSaveDialogData));

    if (dialogDataP)

        {

        dialogDataP->dialogRef      = NULL;

        dialogDataP->documentDataP  = ourDataP;

        err = NavCreatePutFileDialog(&dialogOptions, kFileTypePDF, kFileCreator,

                            gNavEventProc, dialogDataP,

                            &dialogDataP->dialogRef);

        if ((err == noErr) && (dialogDataP->dialogRef != NULL))

        {

        err = NavDialogRun( dialogDataP->dialogRef );

        if (err != noErr)

        {

                    fprintf(stderr, "NavDialogRun returned error %d\n", (int)err);

/*

            NavDialogDispose( dialogDataP->dialogRef );

            dialogDataP->dialogRef = NULL;

*/

        }

        }

            else

            {

                fprintf(stderr, "NavCreatePutFileDialog returned error %d\n", (int)err);

            }

    }

        else

        err = memFullErr;

        if ( dialogOptions.saveFileName != NULL )

        CFRelease( dialogOptions.saveFileName );

    }

    return err;

}