// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2013 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC.  If not, see <http://www.gnu.org/licenses/>.

//  BOINCGUIApp.mm

#include "MacGUI.pch"
#include "BOINCGUIApp.h"
#import <Cocoa/Cocoa.h>


// Cocoa routines which are part of CBOINCGUIApp
// Override standard wxCocoa wxApp::CallOnInit() to allow Manager
// to run properly when launched hidden on login via Login Item. 
bool CBOINCGUIApp::CallOnInit() {
        NSAutoreleasePool *mypool = [[NSAutoreleasePool alloc] init];

        NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined 
                                        location:NSMakePoint(0.0, 0.0) 
                                   modifierFlags:0 
                                       timestamp:0 
                                    windowNumber:0 
                                         context:nil
                                         subtype:0 data1:0 data2:0]; 
        [NSApp postEvent:event atStart:FALSE];

    bool retVal = wxApp::CallOnInit();

    [mypool release];
    return retVal;
}


// Our application can get into a strange state 
// if our login item launched it hidden and the
// first time the user "opens" it he either
// double-clicks on our Finder icon or uses
// command-tab.  It becomes the frontmost
// application (with its menu in the menubar)
// but the windows remain hidden, and it does
// not receive an activate event, so we must 
// handle this case by polling.
//
// We can stop the polling after the windows
// have been shown once, since this state only
// occurs if the windows have never appeared.
//
// TODO: Can we avoid polling by using notification
// TODO: [NSApplicationDelegate applicationDidUnhide: ] ?
//
void CBOINCGUIApp::CheckPartialActivation() {
    // This code is not needed and has bad effects on OS 10.5.
    // Initializing wasHidden this way avoids the problem 
    // because we are briefly shown at login on OS 10.5.
    static bool wasHidden = [ NSApp isHidden ];
    
    if (wasHidden) {
        if (m_bAboutDialogIsOpen) return;
        
        if (! [ NSApp isHidden ]) {
            wasHidden = false;
            ShowInterface();
        }
    }
}


// HideThisApp() is called from CBOINCGUIApp::ShowApplication(bool)
// and replaces a call of ShowHideProcess() which is deprecated
// under OS 10.9.
void CBOINCGUIApp::HideThisApp() {
    [ NSApp hide:NSApp ];
}


/// Determines if the current process is visible.
///
/// @return
///  true if the current process is visible, otherwise false.
/// 
bool CBOINCGUIApp::IsApplicationVisible() {
    return (! [ NSApp isHidden ]);
}


///
/// Shows or hides the current process.
///
/// @param bShow
///   true will show the process, false will hide the process.
///
void CBOINCGUIApp::ShowApplication(bool bShow) {
    if (bShow) {
        [ NSApp activateIgnoringOtherApps:YES ];
    } else {
        [ NSApp hide:NSApp ];
    }
}