/*

    File:       NavServices.c

    Description:Code that calls NavServices and handles Nav events sent back to the application.

    Author:     MC

    Copyright:  © Copyright 1999-2000 Apple Computer, Inc. All rights reserved.

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

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                to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs

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

                reproduce, modify and redistribute the Apple Software, with or without

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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

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                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

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    Change History (most recent first):

*/

#define TARGET_API_MAC_CARBON 1

#include "NavServices.h"

Movie                               gPreviewMovie;

MovieController                     gPreviewMC;

long                                gLastFilesID;

extern OSType *                     gAcceptedFlavorTypes;

extern long                         gNumGIComponents;

static pascal Boolean NavFileFilterProc (AEDesc* theItem, void* info, NavCallBackUserData callBackUD, NavFilterModes filterMode) {

#pragma unused (theItem, callBackUD, filterMode)

    Boolean                     display;

    NavFileOrFolderInfo*        theInfo;

    int                         i;

    theInfo = (NavFileOrFolderInfo*)info;

    i = 0;

    display = false;

    do {

        if (theInfo->isFolder) {

            display = true;

        } else {

            if (theInfo->fileAndFolder.fileInfo.finderInfo.fdType == gAcceptedFlavorTypes[i++] || 

                theInfo->fileAndFolder.fileInfo.finderInfo.fdType == MovieFileType) {

                display = true; // Show this item

            }

        }

    } while (display == false && i <= gNumGIComponents);

    return display;

}

static pascal Boolean NavPreviewProc (NavCBRecPtr callBackParms, NavCallBackUserData callBackUD) {

#pragma unused (callBackUD)

    ComponentResult             err;

    Boolean                     prevVis;

    AEDesc                      selectionDesc;

    FSSpec                      finalFSSpec;

    GraphicsImportComponent     giFromQT;

    Rect                        boundsRect;

    long                        count,

                                fileID;

    short                       resRefNum;

    HParamBlockRec              pb;

    DescType                    returnedType;

    Size                        actualSize;

    AEKeyword                   keywd;

    err = NavCustomControl (callBackParms->context, kNavCtlIsPreviewShowing, &prevVis);

    if (prevVis == true) {

        err = NavCustomControl (callBackParms->context, kNavCtlGetSelection, &selectionDesc);

        if (err == noErr) {

            (void)AECountItems (&selectionDesc, &count);

            // Just preview the last thing they selected (if they selected multiple items)

            err = AEGetNthPtr (&selectionDesc, count, typeFSS, &keywd, &returnedType, &finalFSSpec, sizeof (FSSpec), &actualSize);

            if (err == noErr) {

                CursHandle      cursor = nil;

                cursor = GetCursor (watchCursor);

                SetCursor (*cursor);

                err = GetGraphicsImporterForFile (&finalFSSpec, &giFromQT);

                if (err != noErr) {

                    // Don't stop the movie if we are asked to preview the

                    // same movie we are currently previewing.

                    pb.fidParam.ioCompletion = nil;

                    pb.fidParam.ioNamePtr = finalFSSpec.name;

                    pb.fidParam.ioVRefNum = finalFSSpec.vRefNum;

                    pb.fidParam.ioSrcDirID = finalFSSpec.parID;

                    (void)PBCreateFileIDRefSync (&pb);

                    fileID = pb.fidParam.ioFileID;

                    err = noErr;

                    if (fileID != gLastFilesID) {

                        // Preview a new movie

                        gLastFilesID = fileID;

                        if (gPreviewMovie != nil) {

                            StopMovie (gPreviewMovie);

                            DisposeMovieController (gPreviewMC);

                            DisposeMovie (gPreviewMovie);

                        }

                        err = OpenMovieFile (&finalFSSpec, &resRefNum, fsRdPerm);

                        if (err == noErr) {

                            err = NewMovieFromFile (&gPreviewMovie, resRefNum, 0, nil, newMovieActive, nil);

                            CloseMovieFile (resRefNum);

                        }

                        if (err == noErr) {

                            GetMovieNaturalBoundsRect (gPreviewMovie, &boundsRect);

                            // Set movie's origin to 0,0.

                            boundsRect.bottom -= boundsRect.top;

                            boundsRect.bottom += 16;    // Room for the controller.

                            boundsRect.right -= boundsRect.left;

                            boundsRect.top = 0;

                            boundsRect.left = 0;

                            ScaleImageToRect (&boundsRect, &callBackParms->previewRect, &boundsRect);

                            gPreviewMC = NewMovieController (gPreviewMovie, &boundsRect, mcScaleMovieToFit);

                        }

                        if (gPreviewMC != nil) {

                            (void)MCDraw (gPreviewMC, callBackParms->window);

                        }

                    } else {

                        // Just update the preview.

                        (void)MCDraw (gPreviewMC, callBackParms->window);

                    }

                } else {

                    if (gPreviewMovie != nil) {

                        StopMovie (gPreviewMovie);

                        DisposeMovieController (gPreviewMC);

                        DisposeMovie (gPreviewMovie);

                        gPreviewMC = nil;

                        gPreviewMovie = nil;

                        gLastFilesID = 0;

                    }

                    // If it's not a movie, try it as an image file.

                    // giFromQT is already valid because we got it at the start

                    // of this function.

                    err = GraphicsImportGetBoundsRect (giFromQT, &boundsRect);

                    if (err == noErr) {

                        ScaleImageToRect (&boundsRect, &callBackParms->previewRect, &boundsRect);

                        err = GraphicsImportSetBoundsRect (giFromQT, &boundsRect);

                    }

                    if (err == noErr) {

                        err = GraphicsImportDraw (giFromQT);

                    }

                    if (giFromQT != nil) {

                        (void)CloseComponent (giFromQT);

                    }

                }

                cursor = (CursHandle)NewHandle (sizeof (Cursor));

                GetQDGlobalsArrow (*cursor);

                SetCursor (*cursor);

                DisposeHandle ((Handle)cursor);

            }

        }

    }

    (void)AEDisposeDesc (&selectionDesc);

    if (err == noErr) {

        return true;

    } else {

        return false;

    }

}

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

#pragma unused (callBackUD)

    OSErr                       err;

    Point                       where;

    Rect                        boundsRect;

    switch (callBackSelector) {

        case kNavCBEvent:

            if ((gPreviewMC != nil && MCIsPlayerEvent (gPreviewMC, callBackParms->eventData.eventDataParms.event) == 0) || gPreviewMC == nil) {

                switch (callBackParms->eventData.eventDataParms.event->what) {

                    case nullEvent:

                        MCIdle (gPreviewMC);

                        break;

                    case updateEvt:

                        err = DispatchWindowUpdate ((WindowPtr)callBackParms->eventData.eventDataParms.event->message);

                        break;

                    case mouseDown:

                        where = callBackParms->eventData.eventDataParms.event->where;

                        GlobalToLocal (&where);

                        (void)MCClick (gPreviewMC, callBackParms->window, where, (SInt32)callBackParms->eventData.eventDataParms.event->when, callBackParms->eventData.eventDataParms.event->modifiers);

                        break;

                    case kHighLevelEvent:

                        err = AEProcessAppleEvent (callBackParms->eventData.eventDataParms.event);

                        break;

                }

            }

            break;

        case kNavCBAdjustRect:

            break;

        case kNavCBAdjustPreview:

            if (gPreviewMC != nil) {

                GetMovieNaturalBoundsRect (gPreviewMovie, &boundsRect);

                // Set movie's origin to 0,0.

                boundsRect.bottom -= boundsRect.top;

                boundsRect.bottom += 16;    // Room for the controller.

                boundsRect.right -= boundsRect.left;

                boundsRect.top = 0;

                boundsRect.left = 0;

                DisposeMovieController (gPreviewMC);

                gPreviewMC = nil;

                ScaleImageToRect (&boundsRect, &callBackParms->previewRect, &boundsRect);

                gPreviewMC = NewMovieController (gPreviewMovie, &boundsRect, mcScaleMovieToFit);

                if (gPreviewMC != nil) {

                    (void)MCDraw (gPreviewMC, callBackParms->window);

                }

            }

            break;

        case kNavCBTerminate:

            if (gPreviewMovie != nil) {

                StopMovie (gPreviewMovie);

                DisposeMovieController (gPreviewMC);

                DisposeMovie (gPreviewMovie);

                gPreviewMC = nil;

                gPreviewMovie = nil;

                gLastFilesID = 0;

            }

            break;

    }

}

OSErr NavGetFilePreview (void) {

    OSErr                       err;

    NavReplyRecord              navReply;

    NavTypeListHandle           openTypeList;

    NavDialogOptions            dialogOptions;

    err = NavGetDefaultDialogOptions (&dialogOptions);

    if (err == noErr) {

        dialogOptions.dialogOptionFlags = kNavAllFilesInPopup | kNavAllowMultipleFiles | kNavAllowPreviews;

        openTypeList = (NavTypeListHandle)GetResource ('open', 128);

        if (openTypeList == nil) {

            err = ResError ();

            if (err == noErr) {

                err = memFullErr;

            }

        }

    }

    if (err == noErr) {

        NavEventUPP                 eventProc;

        NavPreviewUPP               previewProc;

        NavObjectFilterUPP          filterProc;

        eventProc = NewNavEventProc (NavEventProc);

        previewProc = NewNavPreviewProc (NavPreviewProc);

        filterProc = NewNavObjectFilterProc (NavFileFilterProc);

        err = NavGetFile (nil, &navReply, &dialogOptions, eventProc, previewProc, filterProc, nil, nil); //openTypeList

        DisposeNavEventUPP (eventProc);

        DisposeNavPreviewUPP (previewProc);

        DisposeNavObjectFilterUPP (filterProc);

    }

    if (navReply.validRecord && err == noErr) {

        ProcessSerialNumber         processSN       = {0, kCurrentProcess};

        AEAddressDesc               targetAddress   = {typeNull, nil};

        AppleEvent                  theODOC         = {typeNull, nil},

                                    theReply        = {typeNull, nil};

        // Create an Apple Event to ourselves.

        err = AECreateDesc (typeProcessSerialNumber, &processSN, sizeof (ProcessSerialNumber), &targetAddress);

        if (err == noErr) {

            // Create the open document event.

            err = AECreateAppleEvent (kCoreEventClass, kAEOpenDocuments, &targetAddress, kAutoGenerateReturnID, kAnyTransactionID, &theODOC);

            AEDisposeDesc (&targetAddress);

        }

        if (err == noErr) {

            // Put the list of files into the open document event Apple Event.

            err = AEPutParamDesc (&theODOC, keyDirectObject, &(navReply.selection));

        }

        if (err == noErr) {

            // Send the open document event to ourselves.

            err = AESend (&theODOC, &theReply, kAENoReply, kAENormalPriority, kAEDefaultTimeout, nil, nil);

            AEDisposeDesc (&theODOC);

            AEDisposeDesc (&theReply);

        }

    }

    (void)NavDisposeReply (&navReply);

    if (openTypeList != nil) {

        ReleaseResource ((Handle)openTypeList);

    }

    return err;

}