/*

HIToolboxSOU-MenuItemViews

File: main.c

Abstract:

    This project is a demo of the Menu Item View API discussed in WWDC 2006 session 105, HIToolbox State of the Union.

    The only addition to this source file for the demo is located in the main function; look there for a sample of

    making a menu item use an embedded HIView.

Version: 1.0

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*/

#include <Carbon/Carbon.h>

static OSStatus        AppEventHandler( EventHandlerCallRef inCaller, EventRef inEvent, void* inRefcon );

static OSStatus        HandleNew();

static OSStatus        WindowEventHandler( EventHandlerCallRef inCaller, EventRef inEvent, void* inRefcon );

static IBNibRef        sNibRef;

//--------------------------------------------------------------------------------------------

int main(int argc, char* argv[])

{

    OSStatus                    err;

    MenuRef                     menu;

    MenuItemIndex               item;

    EventRef                    event;

    CFStringRef                 titleStr = CFSTR("Checkbox");

    static const EventTypeSpec    kAppEvents[] =

    {

        { kEventClassCommand, kEventCommandProcess }

    };

    // Create a Nib reference, passing the name of the nib file (without the .nib extension).

    // CreateNibReference only searches into the application bundle.

    err = CreateNibReference( CFSTR("main"), &sNibRef );

    require_noerr( err, CantGetNibRef );

    // Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar

    // object. This name is set in InterfaceBuilder when the nib is created.

    err = SetMenuBarFromNib( sNibRef, CFSTR("MenuBar") );

    require_noerr( err, CantSetMenuBar );

/*-------- Menu Item Views in Mac OS X 10.5 --------*/

    // find the Page Setup menu item

    GetIndMenuItemWithCommandID( NULL, kHICommandPageSetup, 1, &menu, &item );

    //

    // Create an initialization event for the Checkbox control that contains the control's title.

    // 'ctit' is the event parameter for the control title for an HIObject that is a subclass of

    // HIView; this parameter will be officially documented for Leopard GM.

    //

    CreateEvent( NULL, kEventClassHIObject, kEventHIObjectInitialize, 0, 0, &event );

    SetEventParameter( event, 'ctit', typeCFStringRef, sizeof( titleStr ), &titleStr );

    // make the item use a checkbox

    HIMenuSetItemViewClass( menu, item, kHICheckBoxClassID, event );

    // the menu retains the init event, so we can release it now

    ReleaseEvent( event );

/*-------- End Menu Item Views --------*/

    // Install our handler for common commands on the application target

    InstallApplicationEventHandler( NewEventHandlerUPP( AppEventHandler ),

                                    GetEventTypeCount( kAppEvents ), kAppEvents,

                                    0, NULL );

    // Create a new window. A full-fledged application would do this from an AppleEvent handler

    // for kAEOpenApplication.

    HandleNew();

    // Run the event loop

    RunApplicationEventLoop();

CantSetMenuBar:

CantGetNibRef:

    return err;

}

//--------------------------------------------------------------------------------------------

static OSStatus

AppEventHandler( EventHandlerCallRef inCaller, EventRef inEvent, void* inRefcon )

{

    OSStatus    result = eventNotHandledErr;

    switch ( GetEventClass( inEvent ) )

    {

        case kEventClassCommand:

        {

            HICommandExtended cmd;

            verify_noerr( GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof( cmd ), NULL, &cmd ) );

            switch ( GetEventKind( inEvent ) )

            {

                case kEventCommandProcess:

                    switch ( cmd.commandID )

                    {

                        case kHICommandNew:

                            result = HandleNew();

                            break;

                        // Add your own command-handling cases here

                        default:

                            break;

                    }

                    break;

            }

            break;

        }

        default:

            break;

    }

    return result;

}

//--------------------------------------------------------------------------------------------

DEFINE_ONE_SHOT_HANDLER_GETTER( WindowEventHandler )

//--------------------------------------------------------------------------------------------

static OSStatus

HandleNew()

{

    OSStatus                    err;

    WindowRef                    window;

    static const EventTypeSpec    kWindowEvents[] =

    {

        { kEventClassCommand, kEventCommandProcess }

    };

    // Create a window. "MainWindow" is the name of the window object. This name is set in 

    // InterfaceBuilder when the nib is created.

    err = CreateWindowFromNib( sNibRef, CFSTR("MainWindow"), &window );

    require_noerr( err, CantCreateWindow );

    // Install a command handler on the window. We don't use this handler yet, but nearly all

    // Carbon apps will need to handle commands, so this saves everyone a little typing.

    InstallWindowEventHandler( window, GetWindowEventHandlerUPP(),

                               GetEventTypeCount( kWindowEvents ), kWindowEvents,

                               window, NULL );

    // Position new windows in a staggered arrangement on the main screen

    RepositionWindow( window, NULL, kWindowCascadeOnMainScreen );

    // The window was created hidden, so show it

    ShowWindow( window );

CantCreateWindow:

    return err;

}

//--------------------------------------------------------------------------------------------

static OSStatus

WindowEventHandler( EventHandlerCallRef inCaller, EventRef inEvent, void* inRefcon )

{

    OSStatus    err = eventNotHandledErr;

    switch ( GetEventClass( inEvent ) )

    {

        case kEventClassCommand:

        {

            HICommandExtended cmd;

            verify_noerr( GetEventParameter( inEvent, kEventParamDirectObject, typeHICommand, NULL, sizeof( cmd ), NULL, &cmd ) );

            switch ( GetEventKind( inEvent ) )

            {

                case kEventCommandProcess:

                    switch ( cmd.commandID )

                    {

                        // Add your own command-handling cases here

                        default:

                            break;

                    }

                    break;

            }

            break;

        }

        default:

            break;

    }

    return err;

}