Nebula 1/Nebula One.iso/Utilities/Workspace/MonsterShelf/Source/Controller.m

Text File | 1995-06-12 | 4.7 KB | 210 lines

#import "Controller.h"
#import "ShelfView.h"

#import <appkit/appkit.h>


@implementation Controller

- init
{
    infoPanel = nil;
    prefPanel = nil;

    return self;
}


- appDidInit:sender
{
    NXRect    contentRect;
    NXScreen    *screens;
    int        screenCount;
    id        shelfWindow;
    id        workspace = [Application workspace];
    char    *mountedList = NULL;

#if    1 || WORK_AROUND_WORKSPACE_BUG
    /*
     *  This code works around a Workspace bug in 3.0 that prevents Workspace
     *  from dealing with disks effectively if it gets a request for icons
     *  before it's really initialized.  Calling this method before getting
     *  icons allows Workspace to initialize itself correctly.  The bug is
     *  fixed in 3.1, so we can eventually delete this code.
     */
    {
    BOOL junk;
    char *desc = NULL, *fsType = NULL;
    [[Application workspace] getInfoForFileSystemAt:"/"
            isRemovable:&junk  isWritable:&junk
            isUnmountable:&junk description:&desc
            type:&fsType];
    if (desc)
        free(desc);
    if (fsType)
        free(fsType);
    }
#endif

    [NXApp getScreens:&screens count:&screenCount];

    shelfWindow = [[Window allocFromZone:[self zone]]
            initContent:&screens[0].screenBounds
            style:NX_TOKENSTYLE
            backing:NX_BUFFERED buttonMask:0 defer:NO];

    [[shelfWindow contentView] getFrame:&contentRect];
    shelfView = [[ShelfView allocFromZone:[shelfWindow zone]]
            initFrame:&contentRect];
    [[shelfWindow setContentView:shelfView] free];

    PSsetwindowlevel(-2147483647, [shelfWindow windowNum]);

    [shelfWindow setAvoidsActivation:YES];
    [NXApp preventWindowOrdering];

    [shelfWindow display];
    [shelfWindow orderBack:self];

    /*
     *  UI is up and initialized.  Do some other things:
     *    1) scan for mounted things that we should stick up on the UI
     *       NOTE: because we couldn't get the list of removable media
     *             prior to 3.1, we need to be careful.
     *    2) start listening for changes in the file system
     */
    if ([workspace respondsTo:@selector(getMountedRemovableMedia:)] &&
        [workspace getMountedRemovableMedia:&mountedList])
        [self perform:@selector(createViewFor:) withPaths:mountedList];

    if (mountedList)
        free(mountedList);

    [workspace beginListeningForDeviceStatusChanges];
    [NXApp hide:self];

    return self;
}


/*
 *  Put up a panel.  We have to handle two cases:
 *  1) The panel is not present because it hasn't been loaded yet, or
 *     because the user closed a previous one.  In this case, we load the
 *     panel from the nib section.
 *  2) The panel hasn't been closed by the user.  In this case, just
 *     pop up the window.
 */
- doPanel:(id *)panel named:(const char *) name
{
    char    path[MAXPATHLEN];
    id        bundle = [NXBundle mainBundle];

    if (!*panel && [bundle getPath:path forResource:name ofType:"nib"])
    [NXApp loadNibFile:path owner:self withNames:NO fromZone:[self zone]];

    [*panel makeKeyAndOrderFront:self];

    return self;
}


- doInfo:sender
{
    return [self doPanel:&infoPanel named:"Info"];
}


- doPreferences:sender
{
    [self doPanel:&prefPanel named:"Preferences"];

    [gridValue setIntValue:[shelfView gridValue]];
    if ([shelfView gridEnabled])
    [gridSwitch setState:YES];

    return self;
}


/*
 *  Find out if a window just closed.  If it was the info panel or the pref
 *  panel, forget about its identity, since it will free itself on close.
 */
- windowWillClose:sender
{
    if (sender == infoPanel)
    infoPanel = nil;
    else if (sender == prefPanel) {
        [self enableGrid:self];            /* make sure we're in sync */
        prefPanel = nil;
    }

    return self;
}


- enableGrid:sender
{
    unsigned int    newValue = [gridValue intValue];

    [shelfView setGridValue:newValue];
    if ([shelfView gridValue] != newValue)
    [gridValue setIntValue:[shelfView gridValue]];

    [shelfView setGridEnabled:[gridSwitch state]];

    return self;
}


- createViewFor:(const char *) fullPath
{
    [shelfView createViewForPath:fullPath at:NULL];
    return self;
}


- app:sender mounted:(const char *) fullPath
{
    [self createViewFor:fullPath];
    return self;
}


- app:sender unmounted:(const char *) fullPath
{
    [shelfView removeViewForPath:fullPath];
    return self;
}

@end


@implementation Object(BriansPathMethods)
- (void) perform:(SEL) sel withPaths:(const char *) paths
{
    const char    *scan = paths;
    char    *copy;
    char    aPath[MAXPATHLEN];

    if (!paths || !*paths)
        return;

    do {
        copy = aPath;

        while (*scan && *scan != '\t')
        *copy++ = *scan++;
        *copy = '\0';

        if (*scan == '\t')
        scan++;

    [self perform:sel with:(id) aPath];

    } while (*scan);
}
@end