/*  FreeJ
 *  (c) Copyright 2009 Andrea Guzzo <xant@dyne.org>
 *
 * This source code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Public License as published 
 * by the Free Software Foundation; either version 3 of the License,
 * or (at your option) any later version.
 *
 * This source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * Please refer to the GNU Public License for more details.
 *
 * You should have received a copy of the GNU Public License along with
 * this source code; if not, write to:
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <CKbdController.h>
#include <CVScreen.h>
//#include <CFreej.h>

FACTORY_REGISTER_INSTANTIATOR(Controller, CKbdController, KeyboardController, cocoa);

CKbdController::CKbdController() 
    : Controller()
{
    windowController = NULL;
    indestructible = true; // we are going to be used as a singleton
}

CKbdController::~CKbdController()
{
    if (windowController)
        [windowController release];
}

bool CKbdController::init(Context *freej) {
    if (freej) {
        // XXX - we are assuming we will always get a CVSCreen on OSX
        CVScreen *screen = (CVScreen *)freej->screen;
        CVScreenView *sView = screen->get_view();
        windowController = [[CVScreenController alloc] initWithWindow:[sView getWindow]];
        [windowController setKbdController:this];
    }
    return Controller::init(freej);
}

int CKbdController::dispatch()
{
    return 0;
}

int CKbdController::poll()
{
    NSDictionary *entry;
    while (entry = [windowController getEvent]) {
        char funcname[256];
        static jsval fval = JSVAL_NULL;
        NSEvent *event = [entry valueForKey:@"event"];
        NSString *state = [entry valueForKey:@"state"];
        NSUInteger modifierFlags = [event modifierFlags];
        snprintf(funcname, sizeof(funcname), "%s_%s%s%s%s%s",
                 [state UTF8String],
                 ((modifierFlags&NSShiftKeyMask)      ? "shift_" : ""),
                 ((modifierFlags&NSControlKeyMask)    ? "ctrl_"  : ""),
                 ((modifierFlags&NSAlternateKeyMask)  ? "alt_"   : ""),
                 ((modifierFlags&NSNumericPadKeyMask) ? "num_"   : ""),
                 [[event charactersIgnoringModifiers] UTF8String]
        );
        func("%s calling method %s()", __func__, funcname);
        [entry release];
        return JSCall(funcname, 0, &fval);
    }
    return 0;
}

@implementation CVScreenController

- (id)initWithWindow:(NSWindow *)window
{
    _keyEvents = [[NSMutableArray arrayWithCapacity:100] retain];
    return [super initWithWindow:window];
}

- (NSDictionary *)getEvent
{
    NSDictionary *event = NULL;
    @synchronized(self) {
        if ([_keyEvents count]) {
            event = [_keyEvents objectAtIndex:0];
            [_keyEvents removeObjectAtIndex:0];
        }
    }
    return event;
}

- (void)setKbdController:(CKbdController *)kbdController
{
    _kbdController = kbdController;
}


- (void)insertEvent:(NSEvent *)event OfType:(NSString *)type WithState:(NSString *)state
{
    NSDictionary *entry;
    // create the entry
    entry = [[NSDictionary 
              dictionaryWithObjects:
                [NSArray arrayWithObjects:
                    event, state, type, nil
                ]
              forKeys:
                [NSArray arrayWithObjects:
                    @"event", @"state", @"type", nil
                ]
            ] retain];
    @synchronized(self) {
        [_keyEvents addObject:entry];
    }
}

- (void)keyUp:(NSEvent *)event
{
    //NSLog(@"Keyrelease (%hu, modifier flags: 0x%x) %@\n", [event keyCode], [event modifierFlags], [event charactersIgnoringModifiers]);
    [self insertEvent:[event retain] OfType:@"kbd" WithState:@"released"];
}

// handle keystrokes
- (void)keyDown:(NSEvent *)event
{
    //NSLog(@"Keypress (%hu, modifier flags: 0x%x) %@\n", [event keyCode], [event modifierFlags], [event charactersIgnoringModifiers]);
    [self insertEvent:event OfType:@"kbd" WithState:@"pressed"];
}

@end