intf.m

/*****************************************************************************
 * intf.m: MacOS X interface module
 *****************************************************************************
 * Copyright (C) 2002-2013 VLC authors and VideoLAN
 * $Id$
 *
 * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
 *          Derk-Jan Hartman <hartman at videolan.org>
 *          Felix Paul Kühne <fkuehne at videolan dot org>
 *          Pierre d'Herbemont <pdherbemont # videolan org>
 *          David Fuhrmann <david dot fuhrmann at googlemail dot com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdlib.h>                                      /* malloc(), free() */
#include <sys/param.h>                                    /* for MAXPATHLEN */
#include <string.h>
#include <vlc_common.h>
#include <vlc_keys.h>
#include <vlc_dialog.h>
#include <vlc_url.h>
#include <vlc_modules.h>
#include <vlc_plugin.h>
#include <vlc_vout_display.h>
#include <unistd.h> /* execl() */

#import "CompatibilityFixes.h"
#import "intf.h"
#import "StringUtility.h"
#import "MainMenu.h"
#import "VideoView.h"
#import "prefs.h"
#import "playlist.h"
#import "playlistinfo.h"
#import "controls.h"
#import "open.h"
#import "wizard.h"
#import "bookmarks.h"
#import "coredialogs.h"
#import "AppleRemote.h"
#import "eyetv.h"
#import "simple_prefs.h"
#import "CoreInteraction.h"
#import "TrackSynchronization.h"
#import "VLCVoutWindowController.h"
#import "ExtensionsManager.h"

#import "VideoEffects.h"
#import "AudioEffects.h"

#import <AddressBook/AddressBook.h>         /* for crashlog send mechanism */
#import <Sparkle/Sparkle.h>                 /* we're the update delegate */

#import "iTunes.h"

/*****************************************************************************
 * Local prototypes.
 *****************************************************************************/
static void Run (intf_thread_t *p_intf);

static void updateProgressPanel (void *, const char *, float);
static bool checkProgressPanel (void *);
static void destroyProgressPanel (void *);

static void MsgCallback(void *data, int type, const vlc_log_t *item, const char *format, va_list ap);

static int InputEvent(vlc_object_t *, const char *,
                      vlc_value_t, vlc_value_t, void *);
static int PLItemChanged(vlc_object_t *, const char *,
                         vlc_value_t, vlc_value_t, void *);
static int PlaylistUpdated(vlc_object_t *, const char *,
                           vlc_value_t, vlc_value_t, void *);
static int PlaybackModeUpdated(vlc_object_t *, const char *,
                               vlc_value_t, vlc_value_t, void *);
static int VolumeUpdated(vlc_object_t *, const char *,
                         vlc_value_t, vlc_value_t, void *);
static int BossCallback(vlc_object_t *, const char *,
                         vlc_value_t, vlc_value_t, void *);

#pragma mark -
#pragma mark VLC Interface Object Callbacks

/*****************************************************************************
 * OpenIntf: initialize interface
 *****************************************************************************/
int OpenIntf (vlc_object_t *p_this)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
    [VLCApplication sharedApplication];

    intf_thread_t *p_intf = (intf_thread_t*) p_this;

    p_intf->p_sys = malloc(sizeof(intf_sys_t));
    if (p_intf->p_sys == NULL)
        return VLC_ENOMEM;

    memset(p_intf->p_sys, 0, sizeof(*p_intf->p_sys));

    Run(p_intf);

    [o_pool release];
    return VLC_SUCCESS;
}

/*****************************************************************************
 * CloseIntf: destroy interface
 *****************************************************************************/
void CloseIntf (vlc_object_t *p_this)
{
    intf_thread_t *p_intf = (intf_thread_t*) p_this;

    free(p_intf->p_sys);
}

static NSLock * o_vout_provider_lock = nil;

static int WindowControl(vout_window_t *, int i_query, va_list);

int WindowOpen(vout_window_t *p_wnd, const vout_window_cfg_t *cfg)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
    intf_thread_t *p_intf = VLCIntf;
    if (!p_intf) {
        msg_Err(p_wnd, "Mac OS X interface not found");
        [o_pool release];
        return VLC_EGENERIC;
    }
    NSRect proposedVideoViewPosition = NSMakeRect(cfg->x, cfg->y, cfg->width, cfg->height);

    [o_vout_provider_lock lock];
    VLCVoutWindowController *o_vout_controller = [[VLCMain sharedInstance] voutController];
    if (!o_vout_controller) {
        [o_vout_provider_lock unlock];
        [o_pool release];
        return VLC_EGENERIC;
    }

    SEL sel = @selector(setupVoutForWindow:withProposedVideoViewPosition:);
    NSInvocation *inv = [NSInvocation invocationWithMethodSignature:[o_vout_controller methodSignatureForSelector:sel]];
    [inv setTarget:o_vout_controller];
    [inv setSelector:sel];
    [inv setArgument:&p_wnd atIndex:2]; // starting at 2!
    [inv setArgument:&proposedVideoViewPosition atIndex:3];

    [inv performSelectorOnMainThread:@selector(invoke) withObject:nil
                       waitUntilDone:YES];

    VLCVoutView *videoView = nil;
    [inv getReturnValue:&videoView];

    if (!videoView) {
        msg_Err(p_wnd, "got no video view from the interface");
        [o_vout_provider_lock unlock];
        [o_pool release];
        return VLC_EGENERIC;
    }

    msg_Dbg(VLCIntf, "returning videoview with proposed position x=%i, y=%i, width=%i, height=%i", cfg->x, cfg->y, cfg->width, cfg->height);
    p_wnd->handle.nsobject = videoView;

    [o_vout_provider_lock unlock];

    [[VLCMain sharedInstance] setActiveVideoPlayback: YES];
    p_wnd->control = WindowControl;

    [o_pool release];
    return VLC_SUCCESS;
}

static int WindowControl(vout_window_t *p_wnd, int i_query, va_list args)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];

    [o_vout_provider_lock lock];
    VLCVoutWindowController *o_vout_controller = [[VLCMain sharedInstance] voutController];
    if (!o_vout_controller) {
        [o_vout_provider_lock unlock];
        [o_pool release];
        return VLC_EGENERIC;
    }

    switch(i_query) {
        case VOUT_WINDOW_SET_STATE:
        {
            unsigned i_state = va_arg(args, unsigned);

            NSInteger i_cooca_level = NSNormalWindowLevel;
            if (i_state & VOUT_WINDOW_STATE_ABOVE)
                i_cooca_level = NSStatusWindowLevel;

            SEL sel = @selector(setWindowLevel:forWindow:);
            NSInvocation *inv = [NSInvocation invocationWithMethodSignature:[o_vout_controller methodSignatureForSelector:sel]];
            [inv setTarget:o_vout_controller];
            [inv setSelector:sel];
            [inv setArgument:&i_cooca_level atIndex:2]; // starting at 2!
            [inv setArgument:&p_wnd atIndex:3];
            [inv performSelectorOnMainThread:@selector(invoke) withObject:nil
                               waitUntilDone:NO];

            break;
        }
        case VOUT_WINDOW_SET_SIZE:
        {

            unsigned int i_width  = va_arg(args, unsigned int);
            unsigned int i_height = va_arg(args, unsigned int);

            NSSize newSize = NSMakeSize(i_width, i_height);
            SEL sel = @selector(setNativeVideoSize:forWindow:);
            NSInvocation *inv = [NSInvocation invocationWithMethodSignature:[o_vout_controller methodSignatureForSelector:sel]];
            [inv setTarget:o_vout_controller];
            [inv setSelector:sel];
            [inv setArgument:&newSize atIndex:2]; // starting at 2!
            [inv setArgument:&p_wnd atIndex:3];
            [inv performSelectorOnMainThread:@selector(invoke) withObject:nil
                               waitUntilDone:NO];

            break;
        }
        case VOUT_WINDOW_SET_FULLSCREEN:
        {
            NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
            int i_full = va_arg(args, int);

            SEL sel = @selector(setFullscreen:forWindow:);
            NSInvocation *inv = [NSInvocation invocationWithMethodSignature:[o_vout_controller methodSignatureForSelector:sel]];
            [inv setTarget:o_vout_controller];
            [inv setSelector:sel];
            [inv setArgument:&i_full atIndex:2]; // starting at 2!
            [inv setArgument:&p_wnd atIndex:3];
            [inv performSelectorOnMainThread:@selector(invoke) withObject:nil
                               waitUntilDone:NO];

            break;
        }
        default:
        {
            msg_Warn(p_wnd, "unsupported control query");
            [o_vout_provider_lock unlock];
            [o_pool release];
            return VLC_EGENERIC;
        }
    }

    [o_vout_provider_lock unlock];
    [o_pool release];
    return VLC_SUCCESS;
}

void WindowClose(vout_window_t *p_wnd)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];

    [o_vout_provider_lock lock];
    VLCVoutWindowController *o_vout_controller = [[VLCMain sharedInstance] voutController];
    if (!o_vout_controller) {
        [o_vout_provider_lock unlock];
        [o_pool release];
        return;
    }

    [o_vout_controller performSelectorOnMainThread:@selector(removeVoutforDisplay:) withObject:[NSValue valueWithPointer:p_wnd] waitUntilDone:NO];
    [o_vout_provider_lock unlock];

    [o_pool release];
}

/*****************************************************************************
 * Run: main loop
 *****************************************************************************/
static NSLock * o_appLock = nil;    // controls access to f_appExit
static NSLock * o_plItemChangedLock = nil;

static void Run(intf_thread_t *p_intf)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
    [VLCApplication sharedApplication];

    o_appLock = [[NSLock alloc] init];
    o_plItemChangedLock = [[NSLock alloc] init];
    o_vout_provider_lock = [[NSLock alloc] init];

    [[VLCMain sharedInstance] setIntf: p_intf];

    [NSBundle loadNibNamed: @"MainMenu" owner: NSApp];

    [NSApp run];
    [[VLCMain sharedInstance] applicationWillTerminate:nil];
    [o_plItemChangedLock release];
    [o_appLock release];
    [o_vout_provider_lock release];
    o_vout_provider_lock = nil;
    [o_pool release];

    raise(SIGTERM);
}

#pragma mark -
#pragma mark Variables Callback

/*****************************************************************************
 * MsgCallback: Callback triggered by the core once a new debug message is
 * ready to be displayed. We store everything in a NSArray in our Cocoa part
 * of this file.
 *****************************************************************************/
static void MsgCallback(void *data, int type, const vlc_log_t *item, const char *format, va_list ap)
{
    int canc = vlc_savecancel();
    char *str;

    if (vasprintf(&str, format, ap) == -1) {
        vlc_restorecancel(canc);
        return;
    }

    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
    [[VLCMain sharedInstance] processReceivedlibvlcMessage: item ofType: type withStr: str];
    [o_pool release];

    vlc_restorecancel(canc);
    free(str);
}

static int InputEvent(vlc_object_t *p_this, const char *psz_var,
                       vlc_value_t oldval, vlc_value_t new_val, void *param)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
    switch (new_val.i_int) {
        case INPUT_EVENT_STATE:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(playbackStatusUpdated) withObject: nil waitUntilDone:NO];
            break;
        case INPUT_EVENT_RATE:
            [[[VLCMain sharedInstance] mainMenu] performSelectorOnMainThread:@selector(updatePlaybackRate) withObject: nil waitUntilDone:NO];
            break;
        case INPUT_EVENT_POSITION:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updatePlaybackPosition) withObject: nil waitUntilDone:NO];
            break;
        case INPUT_EVENT_TITLE:
        case INPUT_EVENT_CHAPTER:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateMainMenu) withObject: nil waitUntilDone:NO];
            break;
        case INPUT_EVENT_CACHE:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateMainWindow) withObject: nil waitUntilDone: NO];
            break;
        case INPUT_EVENT_STATISTICS:
            [[[VLCMain sharedInstance] info] performSelectorOnMainThread:@selector(updateStatistics) withObject: nil waitUntilDone: NO];
            break;
        case INPUT_EVENT_ES:
            break;
        case INPUT_EVENT_TELETEXT:
            break;
        case INPUT_EVENT_AOUT:
            break;
        case INPUT_EVENT_VOUT:
            break;
        case INPUT_EVENT_ITEM_META:
        case INPUT_EVENT_ITEM_INFO:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateMainMenu) withObject: nil waitUntilDone:NO];
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateName) withObject: nil waitUntilDone:NO];
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateInfoandMetaPanel) withObject: nil waitUntilDone:NO];
            break;
        case INPUT_EVENT_BOOKMARK:
            break;
        case INPUT_EVENT_RECORD:
            [[VLCMain sharedInstance] updateRecordState: var_GetBool(p_this, "record")];
            break;
        case INPUT_EVENT_PROGRAM:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateMainMenu) withObject: nil waitUntilDone:NO];
            break;
        case INPUT_EVENT_ITEM_EPG:
            break;
        case INPUT_EVENT_SIGNAL:
            break;

        case INPUT_EVENT_ITEM_NAME:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateName) withObject: nil waitUntilDone:NO];
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(playlistUpdated) withObject: nil waitUntilDone:NO];
            break;

        case INPUT_EVENT_AUDIO_DELAY:
        case INPUT_EVENT_SUBTITLE_DELAY:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateDelays) withObject:nil waitUntilDone:NO];
            break;

        case INPUT_EVENT_DEAD:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateName) withObject: nil waitUntilDone:NO];
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updatePlaybackPosition) withObject:nil waitUntilDone:NO];
            break;

        case INPUT_EVENT_ABORT:
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateName) withObject: nil waitUntilDone:NO];
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updatePlaybackPosition) withObject:nil waitUntilDone:NO];
            break;

        default:
            //msg_Warn(p_this, "unhandled input event (%lld)", new_val.i_int);
            break;
    }

    [o_pool release];
    return VLC_SUCCESS;
}

static int PLItemChanged(vlc_object_t *p_this, const char *psz_var,
                         vlc_value_t oldval, vlc_value_t new_val, void *param)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];

    /* Due to constraints within NSAttributedString's main loop runtime handling
     * and other issues, we need to wait for -PlaylistItemChanged to finish and
     * then -informInputChanged on this non-main thread. */
    [o_plItemChangedLock lock];
    [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(PlaylistItemChanged) withObject:nil waitUntilDone:YES];
    [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(informInputChanged) withObject:nil waitUntilDone:YES];
    [o_plItemChangedLock unlock];

    [o_pool release];
    return VLC_SUCCESS;
}

static int PlaylistUpdated(vlc_object_t *p_this, const char *psz_var,
                         vlc_value_t oldval, vlc_value_t new_val, void *param)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];

    /* Avoid event queue flooding with playlistUpdated selectors, leading to UI freezes.
     * Therefore, only enqueue if no selector already enqueued.
     */
    VLCMain *o_main = [VLCMain sharedInstance];
    @synchronized(o_main) {
        if(![o_main playlistUpdatedSelectorInQueue]) {
            [o_main setPlaylistUpdatedSelectorInQueue:YES];
            [o_main performSelectorOnMainThread:@selector(playlistUpdated) withObject:nil waitUntilDone:NO];
        }
    }

    [o_pool release];
    return VLC_SUCCESS;
}

static int PlaybackModeUpdated(vlc_object_t *p_this, const char *psz_var,
                         vlc_value_t oldval, vlc_value_t new_val, void *param)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
    [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(playbackModeUpdated) withObject:nil waitUntilDone:NO];

    [o_pool release];
    return VLC_SUCCESS;
}

static int VolumeUpdated(vlc_object_t *p_this, const char *psz_var,
                         vlc_value_t oldval, vlc_value_t new_val, void *param)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
    [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(updateVolume) withObject:nil waitUntilDone:NO];

    [o_pool release];
    return VLC_SUCCESS;
}

static int BossCallback(vlc_object_t *p_this, const char *psz_var,
                        vlc_value_t oldval, vlc_value_t new_val, void *param)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];

    [[VLCCoreInteraction sharedInstance] performSelectorOnMainThread:@selector(pause) withObject:nil waitUntilDone:NO];
    [[VLCApplication sharedApplication] hide:nil];

    [o_pool release];
    return VLC_SUCCESS;
}

/*****************************************************************************
 * ShowController: Callback triggered by the show-intf playlist variable
 * through the ShowIntf-control-intf, to let us show the controller-win;
 * usually when in fullscreen-mode
 *****************************************************************************/
static int ShowController(vlc_object_t *p_this, const char *psz_variable,
                     vlc_value_t old_val, vlc_value_t new_val, void *param)
{
    intf_thread_t * p_intf = VLCIntf;
    if (p_intf && p_intf->p_sys) {
        playlist_t * p_playlist = pl_Get(p_intf);
        BOOL b_fullscreen = var_GetBool(p_playlist, "fullscreen");
        if (strcmp(psz_variable, "intf-toggle-fscontrol") || b_fullscreen)
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(showFullscreenController) withObject:nil waitUntilDone:NO];
        else
            [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(showMainWindow) withObject:nil waitUntilDone:NO];
    }
    return VLC_SUCCESS;
}

/*****************************************************************************
 * DialogCallback: Callback triggered by the "dialog-*" variables
 * to let the intf display error and interaction dialogs
 *****************************************************************************/
static int DialogCallback(vlc_object_t *p_this, const char *type, vlc_value_t previous, vlc_value_t value, void *data)
{
    NSAutoreleasePool * o_pool = [[NSAutoreleasePool alloc] init];
    VLCMain *interface = (VLCMain *)data;

    if ([@(type) isEqualToString: @"dialog-progress-bar"]) {
        /* the progress panel needs to update itself and therefore wants special treatment within this context */
        dialog_progress_bar_t *p_dialog = (dialog_progress_bar_t *)value.p_address;

        p_dialog->pf_update = updateProgressPanel;
        p_dialog->pf_check = checkProgressPanel;
        p_dialog->pf_destroy = destroyProgressPanel;
        p_dialog->p_sys = VLCIntf->p_libvlc;
    }

    NSValue *o_value = [NSValue valueWithPointer:value.p_address];
    [[VLCCoreDialogProvider sharedInstance] performEventWithObject: o_value ofType: type];

    [o_pool release];
    return VLC_SUCCESS;
}

void updateProgressPanel (void *priv, const char *text, float value)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];

    NSString *o_txt;
    if (text != NULL)
        o_txt = @(text);
    else
        o_txt = @"";

    [[[VLCMain sharedInstance] coreDialogProvider] updateProgressPanelWithText: o_txt andNumber: (double)(value * 1000.)];

    [o_pool release];
}

void destroyProgressPanel (void *priv)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];

    if ([[NSApplication sharedApplication] isRunning])
        [[[VLCMain sharedInstance] coreDialogProvider] performSelectorOnMainThread:@selector(destroyProgressPanel) withObject:nil waitUntilDone:YES];

    [o_pool release];
}

bool checkProgressPanel (void *priv)
{
    NSAutoreleasePool *o_pool = [[NSAutoreleasePool alloc] init];
    return [[[VLCMain sharedInstance] coreDialogProvider] progressCancelled];
    [o_pool release];
}

#pragma mark -
#pragma mark Helpers

input_thread_t *getInput(void)
{
    intf_thread_t *p_intf = VLCIntf;
    if (!p_intf)
        return NULL;
    return pl_CurrentInput(p_intf);
}

vout_thread_t *getVout(void)
{
    input_thread_t *p_input = getInput();
    if (!p_input)
        return NULL;
    vout_thread_t *p_vout = input_GetVout(p_input);
    vlc_object_release(p_input);
    return p_vout;
}

vout_thread_t *getVoutForActiveWindow(void)
{
    vout_thread_t *p_vout = nil;

    id currentWindow = [NSApp keyWindow];
    if ([currentWindow respondsToSelector:@selector(videoView)]) {
        VLCVoutView *videoView = [currentWindow videoView];
        if (videoView) {
            p_vout = [videoView voutThread];
        }
    }

    if (!p_vout)
        p_vout = getVout();

    return p_vout;
}

audio_output_t *getAout(void)
{
    intf_thread_t *p_intf = VLCIntf;
    if (!p_intf)
        return NULL;
    return playlist_GetAout(pl_Get(p_intf));
}

#pragma mark -
#pragma mark Private

@interface VLCMain ()
- (void)removeOldPreferences;
@end

@interface VLCMain (Internal)
- (void)handlePortMessage:(NSPortMessage *)o_msg;
- (void)resetMediaKeyJump;
- (void)coreChangedMediaKeySupportSetting: (NSNotification *)o_notification;
@end

/*****************************************************************************
 * VLCMain implementation
 *****************************************************************************/
@implementation VLCMain

@synthesize voutController=o_vout_controller;
@synthesize nativeFullscreenMode=b_nativeFullscreenMode;
@synthesize playlistUpdatedSelectorInQueue=b_playlist_updated_selector_in_queue;

#pragma mark -
#pragma mark Initialization

static VLCMain *_o_sharedMainInstance = nil;

+ (VLCMain *)sharedInstance
{
    return _o_sharedMainInstance ? _o_sharedMainInstance : [[self alloc] init];
}

- (id)init
{
    if (_o_sharedMainInstance) {
        [self dealloc];
        return _o_sharedMainInstance;
    } else
        _o_sharedMainInstance = [super init];

    p_intf = NULL;
    p_current_input = p_input_changed = NULL;

    o_msg_lock = [[NSLock alloc] init];
    o_msg_arr = [[NSMutableArray arrayWithCapacity: 600] retain];

    o_open = [[VLCOpen alloc] init];
    o_coredialogs = [[VLCCoreDialogProvider alloc] init];
    o_info = [[VLCInfo alloc] init];
    o_mainmenu = [[VLCMainMenu alloc] init];
    o_coreinteraction = [[VLCCoreInteraction alloc] init];
    o_eyetv = [[VLCEyeTVController alloc] init];
    o_mainwindow = [[VLCMainWindow alloc] init];

    /* announce our launch to a potential eyetv plugin */
    [[NSDistributedNotificationCenter defaultCenter] postNotificationName: @"VLCOSXGUIInit"
                                                                   object: @"VLCEyeTVSupport"
                                                                 userInfo: NULL
                                                       deliverImmediately: YES];

    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSDictionary *appDefaults = [NSDictionary dictionaryWithObject:@"NO" forKey:@"LiveUpdateTheMessagesPanel"];
    [defaults registerDefaults:appDefaults];

    o_vout_controller = [[VLCVoutWindowController alloc] init];

    return _o_sharedMainInstance;
}

- (void)setIntf: (intf_thread_t *)p_mainintf
{
    p_intf = p_mainintf;
}

- (intf_thread_t *)intf
{
    return p_intf;
}

- (void)awakeFromNib
{
    playlist_t *p_playlist;
    vlc_value_t val;
    if (!p_intf) return;
    var_Create(p_intf, "intf-change", VLC_VAR_BOOL);

    /* Check if we already did this once. Opening the other nibs calls it too,
     because VLCMain is the owner */
    if (nib_main_loaded)
        return;

    [o_msgs_panel setExcludedFromWindowsMenu: YES];
    [o_msgs_panel setDelegate: self];

    p_playlist = pl_Get(p_intf);

    val.b_bool = false;

    var_AddCallback(p_intf->p_libvlc, "intf-toggle-fscontrol", ShowController, self);
    var_AddCallback(p_intf->p_libvlc, "intf-show", ShowController, self);
    var_AddCallback(p_intf->p_libvlc, "intf-boss", BossCallback, self);
    //    var_AddCallback(p_playlist, "item-change", PLItemChanged, self);
    var_AddCallback(p_playlist, "activity", PLItemChanged, self);
    var_AddCallback(p_playlist, "leaf-to-parent", PlaylistUpdated, self);
    var_AddCallback(p_playlist, "playlist-item-append", PlaylistUpdated, self);
    var_AddCallback(p_playlist, "playlist-item-deleted", PlaylistUpdated, self);
    var_AddCallback(p_playlist, "random", PlaybackModeUpdated, self);
    var_AddCallback(p_playlist, "repeat", PlaybackModeUpdated, self);
    var_AddCallback(p_playlist, "loop", PlaybackModeUpdated, self);
    var_AddCallback(p_playlist, "volume", VolumeUpdated, self);
    var_AddCallback(p_playlist, "mute", VolumeUpdated, self);

    if (!OSX_SNOW_LEOPARD) {
        if ([NSApp currentSystemPresentationOptions] & NSApplicationPresentationFullScreen)
            var_SetBool(p_playlist, "fullscreen", YES);
    }

    /* load our Core and Shared Dialogs nibs */
    nib_coredialogs_loaded = [NSBundle loadNibNamed:@"CoreDialogs" owner: NSApp];
    [NSBundle loadNibNamed:@"SharedDialogs" owner: NSApp];

    /* subscribe to various interactive dialogues */
    var_Create(p_intf, "dialog-error", VLC_VAR_ADDRESS);
    var_AddCallback(p_intf, "dialog-error", DialogCallback, self);
    var_Create(p_intf, "dialog-critical", VLC_VAR_ADDRESS);
    var_AddCallback(p_intf, "dialog-critical", DialogCallback, self);
    var_Create(p_intf, "dialog-login", VLC_VAR_ADDRESS);
    var_AddCallback(p_intf, "dialog-login", DialogCallback, self);
    var_Create(p_intf, "dialog-question", VLC_VAR_ADDRESS);
    var_AddCallback(p_intf, "dialog-question", DialogCallback, self);
    var_Create(p_intf, "dialog-progress-bar", VLC_VAR_ADDRESS);
    var_AddCallback(p_intf, "dialog-progress-bar", DialogCallback, self);
    dialog_Register(p_intf);

    /* init Apple Remote support */
    o_remote = [[AppleRemote alloc] init];
    [o_remote setClickCountEnabledButtons: kRemoteButtonPlay];
    [o_remote setDelegate: _o_sharedMainInstance];

    [o_msgs_refresh_btn setImage: [NSImage imageNamed: NSImageNameRefreshTemplate]];

    /* yeah, we are done */
    b_nativeFullscreenMode = NO;
#ifdef MAC_OS_X_VERSION_10_7
    if (!OSX_SNOW_LEOPARD)
        b_nativeFullscreenMode = var_InheritBool(p_intf, "macosx-nativefullscreenmode");
#endif

    if (config_GetInt(VLCIntf, "macosx-icon-change")) {
        /* After day 354 of the year, the usual VLC cone is replaced by another cone
         * wearing a Father Xmas hat.
         * Note: this icon doesn't represent an endorsement of The Coca-Cola Company.
         */
        NSCalendar *gregorian =
        [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
        NSUInteger dayOfYear = [gregorian ordinalityOfUnit:NSDayCalendarUnit inUnit:NSYearCalendarUnit forDate:[NSDate date]];
        [gregorian release];

        if (dayOfYear >= 354)
            [[VLCApplication sharedApplication] setApplicationIconImage: [NSImage imageNamed:@"vlc-xmas"]];
    }

    [self initStrings];

    nib_main_loaded = TRUE;
}

- (void)applicationWillFinishLaunching:(NSNotification *)aNotification
{
    playlist_t * p_playlist = pl_Get(VLCIntf);
    PL_LOCK;
    items_at_launch = p_playlist->p_local_category->i_children;
    PL_UNLOCK;
}

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    launched = YES;

    if (!p_intf)
        return;

    [self updateCurrentlyUsedHotkeys];

    /* init media key support */
    b_mediaKeySupport = var_InheritBool(VLCIntf, "macosx-mediakeys");
    if (b_mediaKeySupport) {
        o_mediaKeyController = [[SPMediaKeyTap alloc] initWithDelegate:self];
        [[NSUserDefaults standardUserDefaults] registerDefaults:[NSDictionary dictionaryWithObjectsAndKeys:
                                                                 [SPMediaKeyTap defaultMediaKeyUserBundleIdentifiers], kMediaKeyUsingBundleIdentifiersDefaultsKey,
                                                                 nil]];
    }
    [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(coreChangedMediaKeySupportSetting:) name: @"VLCMediaKeySupportSettingChanged" object: nil];

    [self removeOldPreferences];

    /* Handle sleep notification */
    [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(computerWillSleep:)
           name:NSWorkspaceWillSleepNotification object:nil];

    [[VLCMain sharedInstance] performSelectorOnMainThread:@selector(lookForCrashLog) withObject:nil waitUntilDone:NO];

    /* we will need this, so let's load it here so the interface appears to be more responsive */
    nib_open_loaded = [NSBundle loadNibNamed:@"Open" owner: NSApp];

    /* update the main window */
    [o_mainwindow updateWindow];
    [o_mainwindow updateTimeSlider];
    [o_mainwindow updateVolumeSlider];

    playlist_t * p_playlist = pl_Get(VLCIntf);
    PL_LOCK;
    BOOL kidsAround = p_playlist->p_local_category->i_children;
    PL_UNLOCK;
    if (kidsAround && var_GetBool(p_playlist, "playlist-autostart"))
        [[self playlist] playItem:nil];
}

- (void)initStrings
{
    if (!p_intf)
        return;

    /* messages panel */
    [o_msgs_panel setTitle: _NS("Messages")];
    [o_msgs_crashlog_btn setTitle: _NS("Open CrashLog...")];
    [o_msgs_save_btn setTitle: _NS("Save this Log...")];

    /* crash reporter panel */
    [o_crashrep_send_btn setTitle: _NS("Send")];
    [o_crashrep_dontSend_btn setTitle: _NS("Don't Send")];
    [o_crashrep_title_txt setStringValue: _NS("VLC crashed previously")];
    [o_crashrep_win setTitle: _NS("VLC crashed previously")];
    [o_crashrep_desc_txt setStringValue: _NS("Do you want to send details on the crash to VLC's development team?\n\nIf you want, you can enter a few lines on what you did before VLC crashed along with other helpful information: a link to download a sample file, a URL of a network stream, ...")];
    [o_crashrep_includeEmail_ckb setTitle: _NS("I agree to be possibly contacted about this bugreport.")];
    [o_crashrep_includeEmail_txt setStringValue: _NS("Only your default E-Mail address will be submitted, including no further information.")];
    [o_crashrep_dontaskagain_ckb setTitle: _NS("Don't ask again")];
}

#pragma mark -
#pragma mark Termination

- (void)applicationWillTerminate:(NSNotification *)notification
{
    /* don't allow a double termination call. If the user has
     * already invoked the quit then simply return this time. */
    static bool f_appExit = false;
    bool isTerminating;

    [o_appLock lock];
    isTerminating = f_appExit;
    f_appExit = true;
    [o_appLock unlock];

    if (isTerminating)
        return;

    [self resumeItunesPlayback:nil];

    if (notification == nil)
        [[NSNotificationCenter defaultCenter] postNotificationName: NSApplicationWillTerminateNotification object: nil];

    playlist_t * p_playlist = pl_Get(p_intf);
    int returnedValue = 0;

    /* always exit fullscreen on quit, otherwise we get ugly artifacts on the next launch */
    if (b_nativeFullscreenMode) {
        [o_mainwindow toggleFullScreen: self];
        [NSApp setPresentationOptions:(NSApplicationPresentationDefault)];
    }

    /* save current video and audio profiles */
    [[VLCVideoEffects sharedInstance] saveCurrentProfile];
    [[VLCAudioEffects sharedInstance] saveCurrentProfile];