amnezia-client/client/ui/utils/macosUtil.mm

#include "macosUtil.h"

#include <QMainWindow>
#include <QProcess>

#include <Cocoa/Cocoa.h>

#import <AppKit/AppKit.h>
#import <Foundation/Foundation.h>

// void setDockIconVisible(bool visible)
//{
//     QProcess process;
//     process.start(
//             "osascript",
//             { "-e tell application \"System Events\" to get properties of (get application process \"AmneziaVPN\")" });
//     process.waitForFinished(3000);
//     const auto output = QString::fromLocal8Bit(process.readAllStandardOutput());

//    qDebug() << output;

//    if (visible) {
//        [NSApp setActivationPolicy:NSApplicationActivationPolicyAccessory];
//    } else {
//        [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
//    }
//}

void setDockIconVisible(bool visible)
{
    ProcessSerialNumber psn = { 0, kCurrentProcess };
    if (visible) {
        TransformProcessType(&psn, kProcessTransformToForegroundApplication);
    } else {
        TransformProcessType(&psn, kProcessTransformToBackgroundApplication);
    }
}

// this Objective-c class is used to override the action of system close button and zoom button
// https://stackoverflow.com/questions/27643659/setting-c-function-as-selector-for-nsbutton-produces-no-results
@interface ButtonPasser : NSObject {
}
@property (readwrite) QMainWindow *window;
+ (void)closeButtonAction:(id)sender;
- (void)zoomButtonAction:(id)sender;
@end

@implementation ButtonPasser {
}
+ (void)closeButtonAction:(id)sender
{
    Q_UNUSED(sender);
    ProcessSerialNumber pn;
    GetFrontProcess(&pn);
    ShowHideProcess(&pn, false);
}
- (void)zoomButtonAction:(id)sender
{
    Q_UNUSED(sender);
    if (0 == self.window)
        return;
    if (self.window->isMaximized())
        self.window->showNormal();
    else
        self.window->showMaximized();
}
@end

void fixWidget(QWidget *widget)
{
    NSView *view = (NSView *)widget->winId();
    if (0 == view)
        return;
    NSWindow *window = view.window;
    if (0 == window)
        return;

    // override the action of close button
    // https://stackoverflow.com/questions/27643659/setting-c-function-as-selector-for-nsbutton-produces-no-results
    // https://developer.apple.com/library/content/documentation/General/Conceptual/CocoaEncyclopedia/Target-Action/Target-Action.html
    //    NSButton *closeButton = [window standardWindowButton:NSWindowCloseButton];
    //    [closeButton setTarget:[ButtonPasser class]];
    //    [closeButton setAction:@selector(closeButtonAction:)];

    [[window standardWindowButton:NSWindowZoomButton] setHidden:YES];
    [[window standardWindowButton:NSWindowMiniaturizeButton] setHidden:YES];
}