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#include "rtl/ustrbuf.hxx"

#include "vcl/button.hxx"

#include "ios/salsys.h"
#include "ios/saldata.hxx"
#include "ios/salinst.h"

#include "svids.hrc"

using ::rtl::OUString;

// =======================================================================

IosSalSystem::~IosSalSystem()
{
}

unsigned int IosSalSystem::GetDisplayScreenCount()
{
    NSArray* pScreens = [UIScreen screens];
    return pScreens ? [pScreens count] : 1;
}

Rectangle IosSalSystem::GetDisplayScreenPosSizePixel( unsigned int nScreen )
{
    NSArray* pScreens = [UIScreen screens];
    Rectangle aRet;
    UIScreen* pScreen = nil;
    if( pScreens && nScreen < [pScreens count] )
        pScreen = [pScreens objectAtIndex: nScreen];
    else
        pScreen = [UIScreen mainScreen];

    if( pScreen )
    {
        CGRect aFrame = pScreen.bounds;
        aRet = Rectangle( Point( static_cast<long int>(aFrame.origin.x), static_cast<long int>(aFrame.origin.y) ),
                          Size( static_cast<long int>(aFrame.size.width), static_cast<long int>(aFrame.size.height) ) );
    }
    return aRet;
}

Rectangle IosSalSystem::GetDisplayScreenWorkAreaPosSizePixel( unsigned int nScreen )
{
    NSArray* pScreens = [UIScreen screens];
    Rectangle aRet;
    UIScreen* pScreen = nil;
    if( pScreens && nScreen < [pScreens count] )
        pScreen = [pScreens objectAtIndex: nScreen];
    else
        pScreen = [UIScreen mainScreen];

    if( pScreen )
    {
        CGRect aFrame = pScreen.applicationFrame;
        aRet = Rectangle( Point( static_cast<long int>(aFrame.origin.x), static_cast<long int>(aFrame.origin.y) ),
                          Size( static_cast<long int>(aFrame.size.width), static_cast<long int>(aFrame.size.height) ) );
    }
    return aRet;
}

rtl::OUString IosSalSystem::GetDisplayScreenName( unsigned int nScreen )
{
   NSArray* pScreens = [UIScreen screens];
   OUString aRet;
   if( nScreen < [pScreens count] )
   {
        ResMgr* pMgr = ImplGetResMgr();
        if( pMgr )
        {
            String aScreenName( ResId( SV_MAC_SCREENNNAME, *pMgr ) );
            aScreenName.SearchAndReplaceAllAscii( "%d", String::CreateFromInt32( nScreen ) );
            aRet = aScreenName;
        }
   }
   return aRet;
}

static NSString* getStandardString( int nButtonId )
{
    rtl::OUString aText( Button::GetStandardText( nButtonId ) );
    if( ! aText.getLength() ) // this is for bad cases, we might be missing the vcl resource
    {
        switch( nButtonId )
        {
        case BUTTON_OK:         aText = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "OK" ) );break;
        case BUTTON_ABORT:      aText = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Abort" ) );break;
        case BUTTON_CANCEL:     aText = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Cancel" ) );break;
        case BUTTON_RETRY:      aText = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Retry" ) );break;
        case BUTTON_YES:        aText = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "Yes" ) );break;
        case BUTTON_NO :        aText = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "No" ) );break;
        }
    }
    return aText.getLength() ? CreateNSString( aText) : nil;
}

@interface MessageboxDelegate : NSObject  <UIAlertViewDelegate>
{
    int *_resultPtr;
}
- (id)initWithResultPtr:(int *)resultPtr;
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;
@end

@implementation MessageboxDelegate
- (id)initWithResultPtr:(int *)resultPtr
{
    _resultPtr = resultPtr;
    return [super init];
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    (void) alertView;

    *_resultPtr = buttonIndex;
}
@end

int IosSalSystem::ShowNativeMessageBox( const rtl::OUString& rTitle,
                                        const rtl::OUString& rMessage,
                                        int nButtonCombination,
                                        int nDefaultButton)
{
    NSString* pTitle = CreateNSString( rTitle );
    NSString* pMessage = CreateNSString( rMessage );

    struct id_entry
    {
        int nCombination;
        int nDefaultButton;
        int nTextIds[3];
    } aButtonIds[] =
    {
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_OK, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_OK, { BUTTON_OK, -1, -1 } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_OK_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_OK, { BUTTON_OK, BUTTON_CANCEL, -1 } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_OK_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_CANCEL, { BUTTON_CANCEL, BUTTON_OK, -1 } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_ABORT_RETRY_IGNORE, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_ABORT, { BUTTON_ABORT, BUTTON_IGNORE, BUTTON_RETRY } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_ABORT_RETRY_IGNORE, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_RETRY, { BUTTON_RETRY, BUTTON_IGNORE, BUTTON_ABORT } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_ABORT_RETRY_IGNORE, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_IGNORE, { BUTTON_IGNORE, BUTTON_IGNORE, BUTTON_ABORT } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_YES_NO_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_YES, { BUTTON_YES, BUTTON_NO, BUTTON_CANCEL } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_YES_NO_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_NO, { BUTTON_NO, BUTTON_YES, BUTTON_CANCEL } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_YES_NO_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_CANCEL, { BUTTON_CANCEL, BUTTON_YES, BUTTON_NO } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_YES_NO, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_YES, { BUTTON_YES, BUTTON_NO, -1 } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_YES_NO, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_NO, { BUTTON_NO, BUTTON_YES, -1 } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_RETRY_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_RETRY, { BUTTON_RETRY, BUTTON_CANCEL, -1 } },
        { SALSYSTEM_SHOWNATIVEMSGBOX_BTNCOMBI_RETRY_CANCEL, SALSYSTEM_SHOWNATIVEMSGBOX_BTN_CANCEL, { BUTTON_CANCEL, BUTTON_RETRY, -1 } }
    };

    NSString* pDefText = nil;
    NSString* pAltText = nil;
    NSString* pOthText = nil;

    unsigned int nC;
    for( nC = 0; nC < sizeof(aButtonIds)/sizeof(aButtonIds[0]); nC++ )
    {
        if( aButtonIds[nC].nCombination == nButtonCombination )
        {
            if( aButtonIds[nC].nDefaultButton == nDefaultButton )
            {
                if( aButtonIds[nC].nTextIds[0] != -1 )
                    pDefText = getStandardString( aButtonIds[nC].nTextIds[0] );
                if( aButtonIds[nC].nTextIds[1] != -1 )
                    pAltText = getStandardString( aButtonIds[nC].nTextIds[1] );
                if( aButtonIds[nC].nTextIds[2] != -1 )
                    pOthText = getStandardString( aButtonIds[nC].nTextIds[2] );
                break;
            }
        }
    }

    int nResult = 1;            // ???
    // How to do the delegate when this is C++?
    MessageboxDelegate *delegate = [[MessageboxDelegate alloc] initWithResultPtr: &nResult];
    UIAlertView *view = [[UIAlertView alloc] initWithTitle: pTitle message: pMessage delegate: delegate
                         cancelButtonTitle: @"Cancel" otherButtonTitles: nil];
    [view show];
    [view dealloc];
    [delegate dealloc];

    if( pTitle )
        [pTitle release];
    if( pMessage )
        [pMessage release];
    if( pDefText )
        [pDefText release];
    if( pAltText )
        [pAltText release];
    if( pOthText )
        [pOthText release];

    int nRet = 0;
    if( nC < sizeof(aButtonIds)/sizeof(aButtonIds[0]) && nResult >= 1 && nResult <= 3 )
    {
        int nPressed = aButtonIds[nC].nTextIds[nResult-1];
        switch( nPressed )
        {
        case BUTTON_NO:     nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_NO; break;
        case BUTTON_YES:    nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_YES; break;
        case BUTTON_OK:     nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_OK; break;
        case BUTTON_CANCEL: nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_CANCEL; break;
        case BUTTON_ABORT:  nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_ABORT; break;
        case BUTTON_RETRY:  nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_RETRY; break;
        case BUTTON_IGNORE: nRet = SALSYSTEM_SHOWNATIVEMSGBOX_BTN_IGNORE; break;
        }
    }

    return nRet;
}

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