src/cocoa/mbarman.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cocoa/mbarman.cpp
   3 // Purpose:     wxMenuBarManager implementation
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/09/04
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13 #if wxUSE_MENUS
  14 #ifndef WX_PRECOMP
  15     #include "wx/log.h"
  16     #include "wx/app.h"
  17     #include "wx/menu.h"
  18     #include "wx/toplevel.h"
  19 #endif // WX_PRECOMP
  20
  21 #include "wx/cocoa/mbarman.h"
  22 #include "wx/cocoa/autorelease.h"
  23 #include "wx/cocoa/objc/objc_uniquifying.h"
  24
  25 #import <Foundation/NSString.h>
  26 #import <Foundation/NSNotification.h>
  27 #import <AppKit/NSMenu.h>
  28 #import <AppKit/NSApplication.h>
  29 #import <AppKit/NSWindow.h>
  30
  31 #ifndef wxUSE_FSCRIPT
  32 #define wxUSE_FSCRIPT 0
  33 #endif
  34
  35 #if wxUSE_FSCRIPT
  36     #import <FScript/FScriptMenuItem.h>
  37 #endif
  38
  39 // Declare setAppleMenu: in an NSApplication category since Tiger and later
  40 // releases support it but don't declare it as it's considered deprecated.
  41 @interface NSApplication(wxDeprecatedMethodsWeWantToUse)
  42 - (void)setAppleMenu:(NSMenu *)menu;
  43 @end
  44
  45 // ============================================================================
  46 // wxMenuBarManagerObserver
  47 // ============================================================================
  48 @interface wxMenuBarManagerObserver : NSObject
  49 {
  50     wxMenuBarManager *m_mbarman;
  51 }
  52
  53 - (id)init;
  54 - (id)initWithWxMenuBarManager: (wxMenuBarManager *)mbarman;
  55 - (void)windowDidBecomeKey: (NSNotification *)notification;
  56 #if 0
  57 - (void)windowDidResignKey: (NSNotification *)notification;
  58 - (void)windowDidBecomeMain: (NSNotification *)notification;
  59 - (void)windowDidResignMain: (NSNotification *)notification;
  60 - (void)windowWillClose: (NSNotification *)notification;
  61 #endif // 0
  62 @end // interface wxMenuBarManagerObserver : NSObject
  63 WX_DECLARE_GET_OBJC_CLASS(wxMenuBarManagerObserver,NSObject)
  64
  65 @implementation wxMenuBarManagerObserver : NSObject
  66 - (id)init
  67 {
  68     wxFAIL_MSG(wxT("[wxMenuBarManagerObserver -init] should never be called!"));
  69     m_mbarman = NULL;
  70     return self;
  71 }
  72
  73 - (id)initWithWxMenuBarManager: (wxMenuBarManager *)mbarman
  74 {
  75     wxASSERT(mbarman);
  76     m_mbarman = mbarman;
  77     return [super init];
  78 }
  79
  80 - (void)windowDidBecomeKey: (NSNotification *)notification
  81 {
  82     wxASSERT(m_mbarman);
  83     m_mbarman->WindowDidBecomeKey(notification);
  84 }
  85
  86 #if 0
  87 - (void)windowDidResignKey: (NSNotification *)notification
  88 {
  89     wxASSERT(m_mbarman);
  90     m_mbarman->WindowDidResignKey(notification);
  91 }
  92
  93 - (void)windowDidBecomeMain: (NSNotification *)notification
  94 {
  95     wxASSERT(m_mbarman);
  96     m_mbarman->WindowDidBecomeMain(notification);
  97 }
  98
  99 - (void)windowDidResignMain: (NSNotification *)notification
 100 {
 101     wxASSERT(m_mbarman);
 102     m_mbarman->WindowDidResignMain(notification);
 103 }
 104
 105 - (void)windowWillClose: (NSNotification *)notification
 106 {
 107     wxASSERT(m_mbarman);
 108     m_mbarman->WindowWillClose(notification);
 109 }
 110 #endif // 0
 111
 112 @end // implementation wxMenuBarManagerObserver : NSObject
 113 WX_IMPLEMENT_GET_OBJC_CLASS(wxMenuBarManagerObserver,NSObject)
 114
 115 // ============================================================================
 116 // wxMenuBarManager
 117 // ============================================================================
 118 wxMenuBarManager *wxMenuBarManager::sm_mbarmanInstance = NULL;
 119
 120 static void AddFScriptItem(NSMenu *menu)
 121 #if wxUSE_FSCRIPT
 122 {
 123     NSMenuItem *item = [[FScriptMenuItem alloc] init];
 124     [menu addItem: item];
 125     [item release];
 126 }
 127 #else
 128 {}
 129 #endif
 130
 131 wxMenuBarManager::wxMenuBarManager()
 132 {
 133     m_observer = [[WX_GET_OBJC_CLASS(wxMenuBarManagerObserver) alloc]
 134             initWithWxMenuBarManager:this];
 135     [[NSNotificationCenter defaultCenter] addObserver:m_observer
 136             selector:@selector(windowDidBecomeKey:)
 137             name:NSWindowDidBecomeKeyNotification object:nil];
 138
 139     // HACK: Reuse the same selector and eventual C++ method and make it
 140     // check for whether the notification is to become key or main.
 141     [[NSNotificationCenter defaultCenter] addObserver:m_observer
 142             selector:@selector(windowDidBecomeKey:)
 143             name:NSWindowDidBecomeMainNotification object:nil];
 144 #if 0
 145     [[NSNotificationCenter defaultCenter] addObserver:m_observer
 146             selector:@selector(windowDidResignKey:)
 147             name:NSWindowDidResignKeyNotification object:nil];
 148     [[NSNotificationCenter defaultCenter] addObserver:m_observer
 149             selector:@selector(windowDidBecomeMain:)
 150             name:NSWindowDidBecomeMainNotification object:nil];
 151     [[NSNotificationCenter defaultCenter] addObserver:m_observer
 152             selector:@selector(windowDidResignMain:)
 153             name:NSWindowDidResignMainNotification object:nil];
 154     [[NSNotificationCenter defaultCenter] addObserver:m_observer
 155             selector:@selector(windowWillClose:)
 156             name:NSWindowWillCloseNotification object:nil];
 157 #endif // 0
 158     m_menuApp = nil;
 159     m_menuServices = nil;
 160     m_menuWindows = nil;
 161     m_menuMain = nil;
 162     m_mainMenuBarInstalled = true;
 163     m_mainMenuBar = NULL;
 164     m_currentNSWindow = nil;
 165
 166     NSApplication *theNSApplication = wxTheApp->GetNSApplication();
 167     // Create the services menu.
 168     m_menuServices = [[NSMenu alloc] initWithTitle: @"Services"];
 169     [theNSApplication setServicesMenu:m_menuServices];
 170
 171     NSMenuItem *menuitem;
 172     // Create the application (Apple) menu.
 173     m_menuApp = [[NSMenu alloc] initWithTitle: @"Apple Menu"];
 174
 175 /**/[m_menuApp addItemWithTitle:@"Preferences..." action:nil keyEquivalent:@""];
 176 /**/[m_menuApp addItem: [NSMenuItem separatorItem]];
 177 /**/AddFScriptItem(m_menuApp);
 178 /**/menuitem = [[NSMenuItem alloc] initWithTitle: @"Services" action:nil keyEquivalent:@""];
 179     [menuitem setSubmenu:m_menuServices];
 180     [m_menuApp addItem: menuitem];
 181     [menuitem release];
 182 /**/[m_menuApp addItem: [NSMenuItem separatorItem]];
 183 /**/menuitem = [[NSMenuItem alloc] initWithTitle:@"Hide" action:@selector(hide:) keyEquivalent:@""];
 184     [menuitem setTarget: theNSApplication];
 185     [m_menuApp addItem: menuitem];
 186     [menuitem release];
 187 /**/menuitem = [[NSMenuItem alloc] initWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@""];
 188     [menuitem setTarget: theNSApplication];
 189     [m_menuApp addItem: menuitem];
 190     [menuitem release];
 191 /**/menuitem = [[NSMenuItem alloc] initWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
 192     [menuitem setTarget: theNSApplication];
 193     [m_menuApp addItem: menuitem];
 194     [menuitem release];
 195 /**/[m_menuApp addItem: [NSMenuItem separatorItem]];
 196 /**/menuitem = [[NSMenuItem alloc] initWithTitle:@"Quit" action:@selector(terminate:) keyEquivalent:@"q"];
 197     [menuitem setTarget: theNSApplication];
 198     [m_menuApp addItem: menuitem];
 199     [menuitem release];
 200
 201     [theNSApplication setAppleMenu:m_menuApp];
 202
 203     // Create the Windows menu
 204     m_menuWindows = [[NSMenu alloc] initWithTitle: @"Window"];
 205
 206 /**/[m_menuWindows addItemWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@""];
 207 /**/[m_menuWindows addItem: [NSMenuItem separatorItem]];
 208 /**/[m_menuWindows addItemWithTitle:@"Bring All to Front" action:@selector(arrangeInFront:) keyEquivalent:@""];
 209
 210     [theNSApplication setWindowsMenu:m_menuWindows];
 211
 212     // Create the main menubar
 213     m_menuMain = [[NSMenu alloc] initWithTitle: @"wxApp Menu"];
 214 /**/NSMenuItem *dummyItem = [[NSMenuItem alloc] initWithTitle:@"App menu"
 215         /* Note: title gets clobbered by app name anyway */
 216         action:nil keyEquivalent:@""];
 217     [dummyItem setSubmenu:m_menuApp];
 218     [m_menuMain addItem:dummyItem];
 219     [dummyItem release];
 220 /**/dummyItem = [[NSMenuItem alloc] initWithTitle:@"Window"
 221         action:nil keyEquivalent:@""];
 222     [dummyItem setSubmenu:m_menuWindows];
 223     [m_menuMain addItem:dummyItem];
 224     [dummyItem release];
 225
 226     [theNSApplication setMainMenu: m_menuMain];
 227
 228 }
 229
 230 wxMenuBarManager::~wxMenuBarManager()
 231 {
 232     [m_observer release];
 233 }
 234
 235 void wxMenuBarManager::CreateInstance()
 236 {
 237     sm_mbarmanInstance = new wxMenuBarManager;
 238 }
 239
 240 void wxMenuBarManager::DestroyInstance()
 241 {
 242     delete sm_mbarmanInstance;
 243     sm_mbarmanInstance = NULL;
 244 }
 245
 246 void wxMenuBarManager::SetMenuBar(wxMenuBar* menubar)
 247 {
 248     m_mainMenuBarInstalled = false;
 249     if(menubar)
 250     {
 251         [[[wxTheApp->GetNSApplication() mainMenu] itemAtIndex:0] setSubmenu:nil];
 252         [[menubar->GetNSMenu() itemAtIndex:0] setSubmenu:m_menuApp];
 253         [wxTheApp->GetNSApplication() setMainMenu:menubar->GetNSMenu()];
 254     }
 255     else
 256         InstallMainMenu();
 257 }
 258
 259 void wxMenuBarManager::SetMainMenuBar(wxMenuBar* menubar)
 260 {
 261     m_mainMenuBar = menubar;
 262     if(m_mainMenuBarInstalled)
 263         InstallMainMenu();
 264 }
 265
 266 void wxMenuBarManager::InstallMainMenu()
 267 {
 268     if(m_mainMenuBar)
 269         SetMenuBar(m_mainMenuBar);
 270     else
 271     {
 272         m_mainMenuBarInstalled = true;
 273         [[[wxTheApp->GetNSApplication() mainMenu] itemAtIndex:0] setSubmenu:nil];
 274         [[m_menuMain itemAtIndex:0] setSubmenu:m_menuApp];
 275         [wxTheApp->GetNSApplication() setMainMenu:m_menuMain];
 276     }
 277 }
 278
 279 void wxMenuBarManager::WindowDidBecomeKey(NSNotification *notification)
 280 {
 281     /* NOTE: m_currentNSWindow might be destroyed but we only ever use it
 282        to look it up in the hash table.  Do not send messages to it. */
 283
 284     /*  Update m_currentNSWindow only if we really should.  For instance,
 285         if a non-wx window is becoming key but a wx window remains main
 286         then don't change out the menubar.  However, if a non-wx window
 287         (whether the same window or not) is main, then switch to the
 288         generic menubar so the wx window that last installed a menubar
 289         doesn't get menu events it doesn't expect.
 290
 291         If a wx window is becoming main then check to see if the key
 292         window is a wx window and if so do nothing because that
 293         is what would have been done before.
 294
 295         If a non-wx window is becoming main and
 296      */
 297     NSString *notificationName = [notification name];
 298     if(NULL == notificationName)
 299         return;
 300     else if([NSWindowDidBecomeKeyNotification isEqualTo:notificationName])
 301     {   // This is the only one that was handled in 2.8 as shipped
 302         // Generally the key window can change without the main window changing.
 303         // The user can do this simply by clicking on something in a palette window
 304         // that needs to become key.
 305         NSWindow *newKeyWindow = [notification object];
 306         wxCocoaNSWindow *theWxKeyWindow = wxCocoaNSWindow::GetFromCocoa(newKeyWindow);
 307         if(theWxKeyWindow != NULL)
 308         {   // If the new key window is a wx window, handle it as before
 309             // even if it has not actually changed.
 310             m_currentNSWindow = newKeyWindow;
 311         }
 312         else
 313         {   // If the new key window is not wx then check the main window.
 314             NSWindow *mainWindow = [[NSApplication sharedApplication] mainWindow];
 315             if(m_currentNSWindow == mainWindow)
 316                 // Don't reset if the menubar doesn't need to change.
 317                 return;
 318             else
 319                 // This is strange because theoretically we should have picked this up
 320                 // already in the main window notification but it's possible that
 321                 // we simply haven't gotten it yet and will about as soon as we return.
 322                 // We already know that the key window isn't wx so fall back to this
 323                 // one and let the code go ahead and set the wx menubar if it is
 324                 // a wx window and set the generic one if it isn't.
 325                 m_currentNSWindow = mainWindow;
 326         }
 327     }
 328     else if([NSWindowDidBecomeMainNotification isEqualTo:notificationName])
 329     {   // Handling this is new
 330         // Generally the main window cannot change without the key window changing
 331         // because if the user clicks on a window that can become main then the
 332         // window will also become key.
 333         // However, it's possible that when it becomes main it automatically makes
 334         // some palette the key window.
 335         NSWindow *newMainWindow = [notification object];
 336         // If we already know about the window, bail.
 337         if(newMainWindow == m_currentNSWindow)
 338             return;
 339         else
 340         {
 341             NSWindow *keyWindow = [[NSApplication sharedApplication] keyWindow];
 342             if(keyWindow == m_currentNSWindow)
 343                 // if we already know about the key window, bail
 344                 return;
 345             else
 346             {   // As above, sort of strange.  Neither one is current.  Prefer key over main.
 347                 wxCocoaNSWindow *theWxMainWindow = wxCocoaNSWindow::GetFromCocoa(keyWindow);
 348                 if(theWxMainWindow != NULL)
 349                     m_currentNSWindow = keyWindow;
 350                 else
 351                     m_currentNSWindow = newMainWindow;
 352             }
 353         }
 354     }
 355     m_currentNSWindow = [notification object];
 356     wxCocoaNSWindow *win = wxCocoaNSWindow::GetFromCocoa(m_currentNSWindow);
 357     if(win)
 358         InstallMenuBarForWindow(win);
 359     else
 360         SetMenuBar(NULL);
 361 }
 362
 363 #if 0
 364 void wxMenuBarManager::WindowDidResignKey(NSNotification *notification)
 365 {
 366 }
 367
 368 void wxMenuBarManager::WindowDidBecomeMain(NSNotification *notification)
 369 {
 370 }
 371
 372 void wxMenuBarManager::WindowDidResignMain(NSNotification *notification)
 373 {
 374 }
 375
 376 void wxMenuBarManager::WindowWillClose(NSNotification *notification)
 377 {
 378 }
 379 #endif // 0
 380
 381 void wxMenuBarManager::InstallMenuBarForWindow(wxCocoaNSWindow *win)
 382 {
 383     wxASSERT(win);
 384     wxMenuBar *menubar = win->GetAppMenuBar(win);
 385     wxLogTrace(wxTRACE_COCOA,wxT("Found menubar=%p for window=%p."),menubar,win);
 386     SetMenuBar(menubar);
 387 }
 388
 389 void wxMenuBarManager::UpdateMenuBar()
 390 {
 391     if(m_currentNSWindow)
 392     {
 393         wxCocoaNSWindow *win = wxCocoaNSWindow::GetFromCocoa(m_currentNSWindow);
 394         if(win)
 395             InstallMenuBarForWindow(win);
 396     }
 397 }
 398
 399 #endif // wxUSE_MENUS