modules/gui/macosx/about.m

   1 /*****************************************************************************
   2  * about.m: MacOS X About Panel
   3  *****************************************************************************
   4  * Copyright (C) 2001-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Derk-Jan Hartman <thedj@users.sourceforge.net>
   8  *          Felix Paul Kühne <fkuehne -at- videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #import "intf.h"
  29 #import "about.h"
  30 #import <vlc_intf_strings.h>
  31 #import <vlc_about.h>
  32
  33 #ifdef __x86_64__
  34 #define PLATFORM "Intel 64bit"
  35 #elif __i386__
  36 #define PLATFORM "Intel 32bit"
  37 #else
  38 #define PLATFORM "PowerPC 32bit"
  39 #endif
  40
  41 /*****************************************************************************
  42  * VLAboutBox implementation
  43  *****************************************************************************/
  44 @implementation VLAboutBox
  45
  46 static VLAboutBox *_o_sharedInstance = nil;
  47
  48 + (VLAboutBox *)sharedInstance
  49 {
  50     return _o_sharedInstance ? _o_sharedInstance : [[self alloc] init];
  51 }
  52
  53 - (id)init
  54 {
  55     if (_o_sharedInstance) {
  56         [self dealloc];
  57     } else {
  58         _o_sharedInstance = [super init];
  59     }
  60
  61     return _o_sharedInstance;
  62 }
  63
  64 - (void) dealloc
  65 {
  66     [[NSNotificationCenter defaultCenter] removeObserver: self];
  67     [super dealloc];
  68 }
  69
  70 /*****************************************************************************
  71 * VLC About Window
  72 *****************************************************************************/
  73
  74 - (void)showAbout
  75 {
  76     if(! b_isSetUp )
  77     {
  78         /* we want to know when VLC wants to quit to prevent a crash while scrolling our credits */
  79         [[NSNotificationCenter defaultCenter] addObserver: self
  80                                                  selector: @selector(VLCWillTerminate)
  81                                                      name: NSApplicationWillTerminateNotification
  82                                                    object: nil];
  83
  84         /* Get the localized info dictionary (InfoPlist.strings) */
  85         NSDictionary *o_local_dict;
  86         o_local_dict = [[NSBundle mainBundle] localizedInfoDictionary];
  87
  88         /* Setup the copyright field */
  89         [o_copyright_field setStringValue: [o_local_dict objectForKey:@"NSHumanReadableCopyright"]];
  90
  91         /* Set the box title */
  92         [o_about_window setTitle: _NS("About VLC media player")];
  93
  94         /* setup the creator / revision field */
  95         [o_revision_field setStringValue:
  96             [NSString stringWithFormat: _NS("Compiled by %s"), VLC_CompileBy()]];
  97
  98         /* Setup the nameversion field */
  99         [o_name_version_field setStringValue: [NSString stringWithFormat:@"Version %s (%s)", VLC_Version(), PLATFORM]];
 100
 101         /* setup the authors and thanks field */
 102         [o_credits_textview setString: [NSString stringWithFormat: @"%@\n\n\n\n%@\n%@\n\n%@",
 103                                             _NS(INTF_ABOUT_MSG),
 104                                             _NS("VLC was brought to you by:"),
 105                                             [NSString stringWithUTF8String: psz_authors],
 106                                             [NSString stringWithUTF8String: psz_thanks]]];
 107
 108         /* Setup the window */
 109         [o_credits_textview setDrawsBackground: NO];
 110         [o_credits_scrollview setDrawsBackground: NO];
 111         [o_about_window setExcludedFromWindowsMenu:YES];
 112         [o_about_window setMenu:nil];
 113         [o_about_window center];
 114         [o_gpl_btn setTitle: _NS("License")];
 115
 116         b_isSetUp = YES;
 117     }
 118
 119     /* Show the window */
 120     b_restart = YES;
 121     [o_credits_textview scrollPoint:NSMakePoint( 0, 0 )];
 122     [o_about_window makeKeyAndOrderFront: nil];
 123 }
 124
 125 - (void)windowDidBecomeKey:(NSNotification *)notification
 126 {
 127     o_scroll_timer = [NSTimer scheduledTimerWithTimeInterval: 1/6
 128                                                       target:self
 129                                                     selector:@selector(scrollCredits:)
 130                                                     userInfo:nil
 131                                                      repeats:YES];
 132 }
 133
 134 - (void)windowDidResignKey:(NSNotification *)notification
 135 {
 136     [o_scroll_timer invalidate];
 137 }
 138
 139 - (void)scrollCredits:(NSTimer *)timer
 140 {
 141     if( b_restart )
 142     {
 143         /* Reset the starttime */
 144         i_start = [NSDate timeIntervalSinceReferenceDate] + 5.0;
 145         f_current = 0;
 146         f_end = [o_credits_textview bounds].size.height - [o_credits_scrollview bounds].size.height;
 147         b_restart = NO;
 148     }
 149
 150     if( [NSDate timeIntervalSinceReferenceDate] >= i_start )
 151     {
 152         /* Scroll to the position */
 153         [o_credits_textview scrollPoint:NSMakePoint( 0, f_current )];
 154
 155         /* Increment the scroll position */
 156         f_current += 0.005;
 157
 158         /* If at end, restart at the top */
 159         if( f_current >= f_end )
 160         {
 161             [o_credits_textview scrollPoint:NSMakePoint( 0, 0 )];
 162             b_restart = YES;
 163         }
 164     }
 165 }
 166
 167 - (void)VLCWillTerminate
 168 {
 169     [o_scroll_timer invalidate];
 170     [[NSNotificationCenter defaultCenter] removeObserver: self];
 171 }
 172
 173 /*****************************************************************************
 174 * VLC GPL Window, action called from the about window and the help menu
 175 *****************************************************************************/
 176
 177 - (IBAction)showGPL:(id)sender
 178 {
 179     [o_gpl_window setTitle: _NS("License")];
 180     [o_gpl_field setString: [NSString stringWithUTF8String: psz_license]];
 181
 182     [o_gpl_window center];
 183     [o_gpl_window makeKeyAndOrderFront: sender];
 184 }
 185
 186 /*****************************************************************************
 187 * VLC Generic Help Window
 188 *****************************************************************************/
 189
 190 - (void)showHelp
 191 {
 192     [o_help_window setTitle: _NS("VLC media player Help")];
 193     [o_help_fwd_btn setToolTip: _NS("Next")];
 194     [o_help_bwd_btn setToolTip: _NS("Previous")];
 195     [o_help_home_btn setToolTip: _NS("Index")];
 196
 197     [o_help_window makeKeyAndOrderFront: self];
 198
 199     [[o_help_web_view mainFrame] loadHTMLString: _NS(I_LONGHELP)
 200                                         baseURL: [NSURL URLWithString:@"http://videolan.org"]];
 201 }
 202
 203 - (IBAction)helpGoHome:(id)sender
 204 {
 205     [[o_help_web_view mainFrame] loadHTMLString: _NS(I_LONGHELP)
 206                                         baseURL: [NSURL URLWithString:@"http://videolan.org"]];
 207 }
 208
 209 - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
 210 {
 211     /* delegate to update button states (we're the frameLoadDelegate for our help's webview)« */
 212     [o_help_fwd_btn setEnabled: [o_help_web_view canGoForward]];
 213     [o_help_bwd_btn setEnabled: [o_help_web_view canGoBack]];
 214 }
 215
 216 @end