src/osx/cocoa/menu.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/osx/cocoa/menu.mm
   3 // Purpose:     wxMenu, wxMenuBar, wxMenuItem
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  15
  16 // wxWidgets headers
  17 // -----------------
  18
  19 #include "wx/wxprec.h"
  20
  21 #ifndef WX_PRECOMP
  22 #include "wx/log.h"
  23 #include "wx/app.h"
  24 #include "wx/utils.h"
  25 #include "wx/frame.h"
  26 #include "wx/menuitem.h"
  27 #endif
  28
  29 #include "wx/menu.h"
  30
  31 #include "wx/osx/private.h"
  32
  33 // other standard headers
  34 // ----------------------
  35 #include <string.h>
  36
  37 @implementation wxNSMenu
  38
  39 - (id) initWithTitle:(NSString*) title
  40 {
  41     self = [super initWithTitle:title];
  42     impl = NULL;
  43     return self;
  44 }
  45
  46 - (void)setImplementation: (wxMenuImpl *) theImplementation
  47 {
  48     impl = theImplementation;
  49 }
  50
  51 - (wxMenuImpl*) implementation
  52 {
  53     return impl;
  54 }
  55
  56 @end
  57
  58 // this is more compatible, as it is also called for command-key shortcuts
  59 // and under 10.4, we are not getting a 'close' event however...
  60 #define wxOSX_USE_NEEDSUPDATE_HOOK 1
  61
  62 @interface wxNSMenuController : NSObject wxOSX_10_6_AND_LATER(<NSMenuDelegate>)
  63 {
  64 }
  65
  66 #if wxOSX_USE_NEEDSUPDATE_HOOK
  67 - (void)menuNeedsUpdate:(NSMenu*)smenu;
  68 #else
  69 - (void)menuWillOpen:(NSMenu *)menu;
  70 #endif
  71 - (void)menuDidClose:(NSMenu *)menu;
  72 - (void)menu:(NSMenu *)menu willHighlightItem:(NSMenuItem *)item;
  73
  74 @end
  75
  76 @implementation wxNSMenuController
  77
  78 - (id) init
  79 {
  80     self = [super init];
  81     return self;
  82 }
  83
  84 #if wxOSX_USE_NEEDSUPDATE_HOOK
  85 - (void)menuNeedsUpdate:(NSMenu*)smenu
  86 {
  87     wxNSMenu* menu = (wxNSMenu*) smenu;
  88     wxMenuImpl* menuimpl = [menu implementation];
  89     if ( menuimpl )
  90     {
  91         wxMenu* wxpeer = (wxMenu*) menuimpl->GetWXPeer();
  92         if ( wxpeer )
  93             wxpeer->HandleMenuOpened();
  94     }
  95 }
  96 #else
  97 - (void)menuWillOpen:(NSMenu *)smenu
  98 {
  99     wxNSMenu* menu = (wxNSMenu*) smenu;
 100     wxMenuImpl* menuimpl = [menu implementation];
 101     if ( menuimpl )
 102     {
 103         wxMenu* wxpeer = (wxMenu*) menuimpl->GetWXPeer();
 104         if ( wxpeer )
 105             wxpeer->HandleMenuOpened();
 106     }
 107 }
 108 #endif
 109
 110 - (void)menuDidClose:(NSMenu *)smenu
 111 {
 112     wxNSMenu* menu = (wxNSMenu*) smenu;
 113     wxMenuImpl* menuimpl = [menu implementation];
 114     if ( menuimpl )
 115     {
 116         wxMenu* wxpeer = (wxMenu*) menuimpl->GetWXPeer();
 117         if ( wxpeer )
 118             wxpeer->HandleMenuClosed();
 119     }
 120 }
 121
 122 - (void)menu:(NSMenu *)smenu willHighlightItem:(NSMenuItem *)item
 123 {
 124     wxNSMenu* menu = (wxNSMenu*) smenu;
 125     wxMenuImpl* menuimpl = [menu implementation];
 126     if ( menuimpl )
 127     {
 128         wxMenu* wxpeer = (wxMenu*) menuimpl->GetWXPeer();
 129         if ( [ item isKindOfClass:[wxNSMenuItem class] ] )
 130         {
 131             wxMenuItemImpl* menuitemimpl = (wxMenuItemImpl*) [ (wxNSMenuItem*) item implementation ];
 132             if ( wxpeer && menuitemimpl )
 133             {
 134                 wxpeer->HandleMenuItemHighlighted( menuitemimpl->GetWXPeer() );
 135             }
 136         }
 137     }
 138 }
 139
 140 @end
 141
 142 @interface NSApplication(MissingAppleMenuCall)
 143 - (void)setAppleMenu:(NSMenu *)menu;
 144 @end
 145
 146 class wxMenuCocoaImpl : public wxMenuImpl
 147 {
 148 public :
 149     wxMenuCocoaImpl( wxMenu* peer , wxNSMenu* menu) : wxMenuImpl(peer), m_osxMenu(menu)
 150     {
 151         static wxNSMenuController* controller = NULL;
 152         if ( controller == NULL )
 153         {
 154             controller = [[wxNSMenuController alloc] init];
 155         }
 156         [menu setDelegate:controller];
 157         [m_osxMenu setImplementation:this];
 158         // gc aware
 159         if ( m_osxMenu )
 160             CFRetain(m_osxMenu);
 161         [m_osxMenu release];
 162     }
 163
 164     virtual ~wxMenuCocoaImpl();
 165
 166     virtual void InsertOrAppend(wxMenuItem *pItem, size_t pos)
 167     {
 168         NSMenuItem* nsmenuitem = (NSMenuItem*) pItem->GetPeer()->GetHMenuItem();
 169         // make sure a call of SetSubMenu is also reflected (occurring after Create)
 170         // update the native menu item accordingly
 171
 172         if ( pItem->IsSubMenu() )
 173         {
 174             wxMenu* wxsubmenu = pItem->GetSubMenu();
 175             WXHMENU nssubmenu = wxsubmenu->GetHMenu();
 176             if ( [nsmenuitem submenu] != nssubmenu )
 177             {
 178                 wxsubmenu->GetPeer()->SetTitle( pItem->GetItemLabelText() );
 179                 [nsmenuitem setSubmenu:nssubmenu];
 180             }
 181         }
 182
 183         if ( pos == (size_t) -1 )
 184             [m_osxMenu addItem:nsmenuitem ];
 185         else
 186             [m_osxMenu insertItem:nsmenuitem atIndex:pos];
 187     }
 188
 189     virtual void Remove( wxMenuItem *pItem )
 190     {
 191         [m_osxMenu removeItem:(NSMenuItem*) pItem->GetPeer()->GetHMenuItem()];
 192     }
 193
 194     virtual void MakeRoot()
 195     {
 196         [NSApp setMainMenu:m_osxMenu];
 197         [NSApp setAppleMenu:[[m_osxMenu itemAtIndex:0] submenu]];
 198     }
 199
 200     virtual void Enable( bool WXUNUSED(enable) )
 201     {
 202     }
 203
 204     virtual void SetTitle( const wxString& text )
 205     {
 206         wxCFStringRef cfText(text);
 207         [m_osxMenu setTitle:cfText.AsNSString()];
 208     }
 209
 210     virtual void PopUp( wxWindow *win, int x, int y )
 211     {
 212         win->ScreenToClient( &x , &y ) ;
 213         NSView *view = win->GetPeer()->GetWXWidget();
 214         NSRect frame = [view frame];
 215         frame.origin.x = x;
 216         frame.origin.y = y;
 217         frame.size.width = 1;
 218         frame.size.height = 1;
 219         NSPopUpButtonCell *popUpButtonCell = [[NSPopUpButtonCell alloc] initTextCell:@"" pullsDown:NO];
 220         [popUpButtonCell setAutoenablesItems:NO];
 221         [popUpButtonCell setAltersStateOfSelectedItem:NO];
 222         [popUpButtonCell setMenu:m_osxMenu];
 223         [popUpButtonCell selectItem:nil];
 224         [popUpButtonCell performClickWithFrame:frame inView:view];
 225         [popUpButtonCell release];
 226     }
 227
 228     WXHMENU GetHMenu() { return m_osxMenu; }
 229
 230     static wxMenuImpl* Create( wxMenu* peer, const wxString& title );
 231     static wxMenuImpl* CreateRootMenu( wxMenu* peer );
 232 protected :
 233     wxNSMenu* m_osxMenu;
 234 } ;
 235
 236 wxMenuCocoaImpl::~wxMenuCocoaImpl()
 237 {
 238     [m_osxMenu setDelegate:nil];
 239     [m_osxMenu setImplementation:nil];
 240     // gc aware
 241     if ( m_osxMenu )
 242         CFRelease(m_osxMenu);
 243 }
 244
 245 wxMenuImpl* wxMenuImpl::Create( wxMenu* peer, const wxString& title )
 246 {
 247     wxCFStringRef cfText( title );
 248     wxNSMenu* menu = [[wxNSMenu alloc] initWithTitle:cfText.AsNSString()];
 249     wxMenuImpl* c = new wxMenuCocoaImpl( peer, menu );
 250     return c;
 251 }