/*

    File:       main.c

    Version:    1.0

    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.

                ("Apple") in consideration of your agreement to the following terms, and your

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                please do not use, install, modify or redistribute this Apple software.

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                copyrights in this original Apple software (the "Apple Software"), to use,

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                the Apple Software in its entirety and without modifications, you must retain

                this notice and the following text and disclaimers in all such redistributions of

                the Apple Software.  Neither the name, trademarks, service marks or logos of

                Apple Computer, Inc. may be used to endorse or promote products derived from the

                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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    Copyright © 2005 Apple Computer, Inc., All Rights Reserved

*/

#include <Carbon/Carbon.h>

#if USE_HIFRAMEWORK

    #include "TImageBrowserView.h"

#else

    #include "ImageBrowserView.h"

#endif // USE_HIFRAMEWORK

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

//  constants

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

//

// HIArchive keys used in an ImageBrower document archive

#define kImageBrowserWindowArchiveKey   CFSTR("ImageBrowserWindowKey")

const HIViewID  kImageBrowserViewID =   { 'IMGB', 0 };

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

//  prototypes

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

//

static OSStatus CreateNewImageBrowserDocument();

static OSStatus SaveImageBrowserDocument(

    WindowRef           inDocumentWindow );

static OSStatus OpenImageBrowserDocument();

static OSStatus ApplicationEventHandler(

    EventHandlerCallRef inCallRef,

    EventRef            inEvent,

    void*               inUserData );

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

//  main

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

//

int main( int argc, char* argv[] )

{

    OSStatus        err;

    IBNibRef        nibRef;

    EventTypeSpec   appEvents[] = { { kEventClassCommand, kEventCommandProcess } };

    // register our custom HIView before it is instantiated from the nib

#if USE_HIFRAMEWORK

    err = TImageBrowserView::RegisterClass();

#else

    err = ImageBrowserViewRegister();

#endif // USE_HIFRAMEWORK

    require_noerr( err, CantRegisterImageBrowserView );

    // install an application event handler for new, open and save file commands

    err = InstallApplicationEventHandler( ApplicationEventHandler, GetEventTypeCount( appEvents ), appEvents, NULL, NULL );

    require_noerr( err, CantInstallAppEventHandler );

    err = CreateNibReference( CFSTR("main"), &nibRef );

    require_noerr( err, CantGetNibRef );

    err = SetMenuBarFromNib( nibRef, CFSTR("MenuBar") );

    require_noerr( err, CantSetMenuBar );

    err = CreateNewImageBrowserDocument();

    require_noerr( err, CantCreateWindow );

    RunApplicationEventLoop();

CantCreateWindow:

CantSetMenuBar:

    DisposeNibReference( nibRef );

CantGetNibRef:

CantInstallAppEventHandler:

CantRegisterImageBrowserView:

    return err;

}

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

//  CreateNewImageBrowserDocument

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

//

static OSStatus CreateNewImageBrowserDocument()

{

    OSStatus            err;

    IBNibRef            nibRef;

    WindowRef           window;

    HIViewRef           view;

    CFIndex             count, index;

    CFMutableArrayRef   array;

    const CFStringRef   kImages[] =

                        {

                            CFSTR( "/Library/Desktop Pictures/Nature/Evening Reflections.jpg" ),

                            CFSTR( "/Library/Desktop Pictures/Nature/Clown Fish.jpg" ),

                            CFSTR( "/Library/Desktop Pictures/Nature/Flowing Rock.jpg" ),

                            CFSTR( "/Library/Desktop Pictures/Nature/Gentle Rapids.jpg" ),

                            CFSTR( "/Library/Desktop Pictures/Nature/Sweeping Current.jpg" )

                        };

    err = CreateNibReference( CFSTR("main"), &nibRef );

    require_noerr( err, CantGetNibRef );

    err = CreateWindowFromNib( nibRef, CFSTR("MainWindow"), &window );

    require_noerr( err, CantCreateWindow );

    // allow the window to be archived

    err = HIObjectSetArchivingIgnored( (HIObjectRef)window, false );

    require_noerr( err, CantSetArchivingIgnored );

    // create an array of images

    array = CFArrayCreateMutable( kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks );

    require_action( array != NULL, CantCreateArray, err = memFullErr );

    count = sizeof( kImages ) / sizeof( CFStringRef );

    for ( index = 0; index < count; index++ )

    {

        CFURLRef    url = CFURLCreateWithFileSystemPath( kCFAllocatorDefault, kImages[ index ], kCFURLPOSIXPathStyle, false );

        if ( url )

        {

            CFArrayAppendValue( array, url );

            CFRelease( url );

        }

    }

    // get the image browser view in this window

    verify_noerr( HIViewFindByID( HIViewGetRoot( window ), kImageBrowserViewID, &view ) );

#if USE_HIFRAMEWORK

    verify_noerr( TImageBrowserView::AddImages( view, array ) );

#else

    verify_noerr( ImageBrowserViewAddImages( view, array ) );

#endif // USE_HIFRAMEWORK

    CFRelease( array );

CantCreateArray:

    ShowWindow( window );

CantSetArchivingIgnored:

CantCreateWindow:

    DisposeNibReference( nibRef );

CantGetNibRef:

    return err;

}

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

//  SaveImageBrowserDocument

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

//

static OSStatus SaveImageBrowserDocument(

    WindowRef                   inDocumentWindow )

{

    OSStatus                    err = noErr;

    NavDialogCreationOptions    options;

    NavDialogRef                navDialog;

    NavReplyRecord              navReply;

    require( inDocumentWindow != NULL, NoWindowToArchive );

    err = NavGetDefaultDialogCreationOptions( &options );

    require_noerr( err, CantGetDefaultDialogOptions );

    options.saveFileName = CFSTR("Untitled.imagebrowser");

    options.optionFlags |= kNavPreserveSaveFileExtension;

    // find a place to put our archive

    err = NavCreatePutFileDialog( &options, kNavGenericSignature, kNavGenericSignature, NULL, NULL, &navDialog );

    require_noerr( err, CantCreatePutFileDialog );

    err = NavDialogRun( navDialog );

    require_noerr( err, CantRunSaveDialog );

    err = NavDialogGetReply( navDialog, &navReply );

    require( err == userCanceledErr || err == noErr, CantGetNavReply );

    if ( navReply.validRecord && err != userCanceledErr )

    {

        FSRef           fileRef;

        CFURLRef        directoryURL, fileURL;

        HIArchiveRef    encoder;

        CFDataRef       encodedData;

        // ask the nav reply where the file should go

        err = AEGetNthPtr( &navReply.selection, 1, typeFSRef, NULL, NULL, &fileRef, sizeof( FSRef ), NULL );

        require_noerr( err, CantGetFSRefFromSaveFileReplyDesc );

        directoryURL = CFURLCreateFromFSRef( kCFAllocatorDefault, &fileRef );

        require_action( directoryURL != NULL, CantCreateDirectoryURL, err = coreFoundationUnknownErr );

        fileURL = CFURLCreateCopyAppendingPathComponent( kCFAllocatorDefault, directoryURL, navReply.saveFileName, false );

        require_action( fileURL != NULL, CantCreateOpenFileURL, err = coreFoundationUnknownErr );

        err = HIArchiveCreateForEncoding( &encoder );

        require_noerr( err, CantCreateEncoder );

        // write the window into the archive

        err = HIArchiveEncodeCFType( encoder, kImageBrowserWindowArchiveKey, inDocumentWindow );

        require_noerr( err, CantEncodeWindow );

        err = HIArchiveCopyEncodedData( encoder, &encodedData );

        require_noerr( err, CantCopyEncodedData );

        // write the archived data out to disk

        require_action( CFURLWriteDataAndPropertiesToResource( fileURL, encodedData, NULL, NULL ),

                            CantWriteDataToFile, err = coreFoundationUnknownErr );

CantWriteDataToFile:

        CFRelease( encodedData );

CantCopyEncodedData:

CantEncodeWindow:

        CFRelease( encoder );

CantCreateEncoder:

        CFRelease( fileURL );

CantCreateOpenFileURL:

        CFRelease( directoryURL );

    }

CantCreateDirectoryURL:

CantGetFSRefFromSaveFileReplyDesc:

CantGetNavReply:

    NavDialogDispose( navDialog );

CantRunSaveDialog:

CantCreatePutFileDialog:

CantGetDefaultDialogOptions:

NoWindowToArchive:

    return err;

}

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

//  OpenImageBrowserDocument

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

//

static OSStatus OpenImageBrowserDocument()

{

    OSStatus                    err;

    NavDialogCreationOptions    options;

    NavDialogRef                navDialog;

    CFMutableArrayRef           identifiers;

    CFStringRef                 imageBrowserUTI;

    NavReplyRecord              navReply;

    err = NavGetDefaultDialogCreationOptions( &options );

    require_noerr( err, CantGetDefaultChooseFileOptions );

    err = NavCreateChooseFileDialog( &options, NULL, NULL, NULL, NULL, NULL, &navDialog );

    require_noerr( err, CantCreateChooseFile );

    // Image Browser can open files with the ".imagebrowser" extension

    identifiers = CFArrayCreateMutable( kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks );

    require_action( identifiers != NULL, CantCreateChooseFileFilterIdentifiers, err = coreFoundationUnknownErr );

    // create the image browser UTI conforming to "public.data" because it's a data file rather than a bundle 

    imageBrowserUTI = UTTypeCreatePreferredIdentifierForTag( kUTTagClassFilenameExtension, CFSTR("imagebrowser"),

                                                                kUTTypeData );

    require_action( imageBrowserUTI != NULL, CantCreateImageBrowserUTI, err = coreFoundationUnknownErr );

    CFArrayAppendValue( identifiers, imageBrowserUTI );

    // filter by image browser UTI

    err = NavDialogSetFilterTypeIdentifiers( navDialog, identifiers );

    require_noerr( err, CantSetChooseFileFilterIdentifiers );

    // choose the file

    err = NavDialogRun( navDialog );

    require_noerr( err, CantRunChooseFileDialog );

    err = NavDialogGetReply( navDialog, &navReply );

    require( err == userCanceledErr || err == noErr, CantGetChooseFileReply );

    // create url to chosen file

    if ( navReply.validRecord && err != userCanceledErr )

    {

        FSRef           fileRef;

        CFURLRef        fileURL;

        CFDataRef       fileData = NULL;

        HIArchiveRef    decoder;

        WindowRef       window;

        err = AEGetNthPtr( &navReply.selection, 1, typeFSRef, NULL, NULL, &fileRef, sizeof( FSRef ), NULL );

        require_noerr( err, CantGetFSRefFromChooseFileReplyDesc );

        fileURL = CFURLCreateFromFSRef( kCFAllocatorDefault, &fileRef );

        require_action( fileURL != NULL, CantCreateOpenFileURL, err = coreFoundationUnknownErr );

        // load data from URL

        CFURLCreateDataAndPropertiesFromResource( kCFAllocatorDefault, fileURL, &fileData, NULL, NULL, NULL );

        require_action( fileData != NULL, CantCreateDataFromFile, err = coreFoundationUnknownErr );

        // unarchive the loaded data

        err = HIArchiveCreateForDecoding( fileData, 0, &decoder );

        require_noerr( err, CantCreateDecoder );

        // unarchive the image browser "document" window

        err = HIArchiveCopyDecodedCFType( decoder, kImageBrowserWindowArchiveKey, (CFTypeRef*)&window );

        require_noerr( err, CantDecodeWindow );

        ShowWindow( window );

        // don't release the created window, it will be released when closed

CantDecodeWindow:

        CFRelease( decoder );

CantCreateDecoder:

        CFRelease( fileData );

CantCreateDataFromFile:

        CFRelease( fileURL );

    }

    NavDisposeReply( &navReply );

CantCreateOpenFileURL:

CantGetFSRefFromChooseFileReplyDesc:

CantGetChooseFileReply:

CantRunChooseFileDialog:

CantSetChooseFileFilterIdentifiers:

    CFRelease( imageBrowserUTI );

CantCreateImageBrowserUTI:

    CFRelease( identifiers );

CantCreateChooseFileFilterIdentifiers:

    NavDialogDispose( navDialog );

CantCreateChooseFile:

CantGetDefaultChooseFileOptions:

    return err;

}

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

//  ApplicationEventHandler

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

//

static OSStatus ApplicationEventHandler(

    EventHandlerCallRef inCallRef,

    EventRef            inEvent,

    void*               inUserData )

{

    OSStatus            err = eventNotHandledErr;

    if ( GetEventClass( inEvent ) == kEventClassCommand && GetEventKind( inEvent ) == kEventCommandProcess )

    {

        HICommandExtended command;

        // grab the command from the event

        require_noerr( GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof( HICommand ),

                        NULL, &command ), CantGetHICommandParameter );

        if ( command.commandID == kHICommandNew ) // load a new image browser window from the nib

        {

            err = CreateNewImageBrowserDocument();

        }

        else if ( command.commandID == kHICommandSave ) // archive an image browser window to disk

        {

            // archive out the active window

            err = SaveImageBrowserDocument( ActiveNonFloatingWindow() );

        }

        else if ( command.commandID == kHICommandOpen ) // unarchive an image browser window from disk

        {

            err = OpenImageBrowserDocument();

        }

    }

CantGetHICommandParameter:

    return err;

}