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wails/v3/pkg/application/systemtray_darwin.go
2023-06-30 21:17:50 +10:00

274 lines
7.8 KiB
Go

//go:build darwin
package application
/*
#cgo CFLAGS: -mmacosx-version-min=10.13 -x objective-c
#cgo LDFLAGS: -framework Cocoa -framework WebKit
#include "Cocoa/Cocoa.h"
#include "menuitem_darwin.h"
// Create a new system tray
void* systemTrayNew() {
NSStatusItem *statusItem = [[[NSStatusBar systemStatusBar] statusItemWithLength:NSVariableStatusItemLength] retain];
return (void*)statusItem;
}
void systemTraySetLabel(void* nsStatusItem, char *label) {
if( label == NULL ) {
return;
}
// Set the label on the main thread
dispatch_async(dispatch_get_main_queue(), ^{
NSStatusItem *statusItem = (NSStatusItem *)nsStatusItem;
statusItem.button.title = [NSString stringWithUTF8String:label];
free(label);
});
}
// Create an nsimage from a byte array
NSImage* imageFromBytes(const unsigned char *bytes, int length) {
NSData *data = [NSData dataWithBytes:bytes length:length];
NSImage *image = [[NSImage alloc] initWithData:data];
return image;
}
// Set the icon on the system tray
void systemTraySetIcon(void* nsStatusItem, void* nsImage, int position, bool isTemplate) {
// Set the icon on the main thread
dispatch_async(dispatch_get_main_queue(), ^{
NSStatusItem *statusItem = (NSStatusItem *)nsStatusItem;
NSImage *image = (NSImage *)nsImage;
NSStatusBar *statusBar = [NSStatusBar systemStatusBar];
CGFloat thickness = [statusBar thickness];
[image setSize:NSMakeSize(thickness, thickness)];
if( isTemplate ) {
[image setTemplate:YES];
}
statusItem.button.image = [image autorelease];
statusItem.button.imagePosition = position;
});
}
// Add menu to system tray
void systemTraySetMenu(void* nsStatusItem, void* nsMenu) {
// Set the menu on the main thread
dispatch_async(dispatch_get_main_queue(), ^{
NSStatusItem *statusItem = (NSStatusItem *)nsStatusItem;
NSMenu *menu = (NSMenu *)nsMenu;
statusItem.menu = menu;
});
}
// Destroy system tray
void systemTrayDestroy(void* nsStatusItem) {
// Remove the status item from the status bar and its associated menu
dispatch_async(dispatch_get_main_queue(), ^{
NSStatusItem *statusItem = (NSStatusItem *)nsStatusItem;
[[NSStatusBar systemStatusBar] removeStatusItem:statusItem];
[statusItem release];
});
}
void systemTrayGetBounds(void* nsStatusItem, NSRect *rect) {
NSStatusItem *statusItem = (NSStatusItem *)nsStatusItem;
*rect = statusItem.button.window.frame;
}
// Get the screen for the system tray
NSScreen* getScreenForSystemTray(void* nsStatusItem) {
NSStatusItem *statusItem = (NSStatusItem *)nsStatusItem;
NSRect frame = statusItem.button.frame;
NSArray<NSScreen *> *screens = NSScreen.screens;
NSScreen *associatedScreen = nil;
for (NSScreen *screen in screens) {
if (NSPointInRect(frame.origin, screen.frame)) {
associatedScreen = screen;
break;
}
}
return associatedScreen;
}
*/
import "C"
import (
"unsafe"
)
type macosSystemTray struct {
id uint
label string
icon []byte
menu *Menu
nsStatusItem unsafe.Pointer
nsImage unsafe.Pointer
nsMenu unsafe.Pointer
iconPosition int
isTemplateIcon bool
}
func (s *macosSystemTray) setIconPosition(position int) {
s.iconPosition = position
}
func (s *macosSystemTray) setMenu(menu *Menu) {
s.menu = menu
}
func (s *macosSystemTray) positionWindow(window *WebviewWindow) error {
// Get the trayBounds of this system tray
trayBounds, err := s.bounds()
if err != nil {
return err
}
// Get the current screen trayBounds
currentScreen, err := s.getScreen()
if err != nil {
return err
}
screenBounds := currentScreen.Bounds
// Determine which quadrant of the screen the system tray is in
// ----------
// | 1 | 2 |
// ----------
// | 3 | 4 |
// ----------
quadrant := 4
if trayBounds.X < screenBounds.Width/2 {
quadrant -= 1
}
if trayBounds.Y < screenBounds.Height/2 {
quadrant -= 2
}
// Get the center height of the window
windowWidthCenter := window.Width() / 2
// Get the center height of the system tray
systemTrayWidthCenter := trayBounds.Width / 2
// Position the window based on the quadrant
// It will be centered on the system tray and if it goes off-screen it will be moved back on screen
switch quadrant {
case 1:
// The X will be 0 and the Y will be the system tray Y
// Center the window on the system tray
window.SetRelativePosition(0, trayBounds.Y)
case 2:
// The Y will be 0 and the X will make the center of the window line up with the center of the system tray
windowX := trayBounds.X + systemTrayWidthCenter - windowWidthCenter
// If the end of the window goes off-screen, move it back enough to be on screen
if windowX+window.Width() > screenBounds.Width {
windowX = screenBounds.Width - window.Width()
}
window.SetRelativePosition(windowX, 0)
case 3:
// The X will be 0 and the Y will be the system tray Y - the height of the window
windowY := trayBounds.Y - window.Height()
// If the end of the window goes off-screen, move it back enough to be on screen
if windowY < 0 {
windowY = 0
}
window.SetRelativePosition(0, windowY)
case 4:
// The Y will be 0 and the X will make the center of the window line up with the center of the system tray - the height of the window
windowX := trayBounds.X + systemTrayWidthCenter - windowWidthCenter
windowY := trayBounds.Y - window.Height()
// If the end of the window goes off-screen, move it back enough to be on screen
if windowX+window.Width() > screenBounds.Width {
windowX = screenBounds.Width - window.Width()
}
window.SetRelativePosition(windowX, windowY)
}
return nil
}
func (s *macosSystemTray) getScreen() (*Screen, error) {
cScreen := C.getScreenForSystemTray(s.nsStatusItem)
return cScreenToScreen(cScreen), nil
}
func (s *macosSystemTray) bounds() (*Rect, error) {
var rect C.NSRect
rect = C.systemTrayGetBounds(s.nsStatusItem)
return &Rect{
X: int(rect.origin.x),
Y: int(rect.origin.y),
Width: int(rect.size.width),
Height: int(rect.size.height),
}, nil
}
func (s *macosSystemTray) run() {
globalApplication.dispatchOnMainThread(func() {
if s.nsStatusItem != nil {
Fatal("System tray '%d' already running", s.id)
}
s.nsStatusItem = unsafe.Pointer(C.systemTrayNew())
if s.label != "" {
C.systemTraySetLabel(s.nsStatusItem, C.CString(s.label))
}
if s.icon != nil {
s.nsImage = unsafe.Pointer(C.imageFromBytes((*C.uchar)(&s.icon[0]), C.int(len(s.icon))))
C.systemTraySetIcon(s.nsStatusItem, s.nsImage, C.int(s.iconPosition), C.bool(s.isTemplateIcon))
}
if s.menu != nil {
s.menu.Update()
// Convert impl to macosMenu object
s.nsMenu = (s.menu.impl).(*macosMenu).nsMenu
C.systemTraySetMenu(s.nsStatusItem, s.nsMenu)
}
})
}
func (s *macosSystemTray) setIcon(icon []byte) {
s.icon = icon
globalApplication.dispatchOnMainThread(func() {
s.nsImage = unsafe.Pointer(C.imageFromBytes((*C.uchar)(&icon[0]), C.int(len(icon))))
C.systemTraySetIcon(s.nsStatusItem, s.nsImage, C.int(s.iconPosition), C.bool(s.isTemplateIcon))
})
}
func (s *macosSystemTray) setDarkModeIcon(icon []byte) {
s.setIcon(icon)
}
func (s *macosSystemTray) setTemplateIcon(icon []byte) {
s.icon = icon
s.isTemplateIcon = true
globalApplication.dispatchOnMainThread(func() {
s.nsImage = unsafe.Pointer(C.imageFromBytes((*C.uchar)(&icon[0]), C.int(len(icon))))
C.systemTraySetIcon(s.nsStatusItem, s.nsImage, C.int(s.iconPosition), C.bool(s.isTemplateIcon))
})
}
func newSystemTrayImpl(s *SystemTray) systemTrayImpl {
return &macosSystemTray{
id: s.id,
label: s.label,
icon: s.icon,
menu: s.menu,
iconPosition: s.iconPosition,
isTemplateIcon: s.isTemplateIcon,
}
}
func (s *macosSystemTray) setLabel(label string) {
s.label = label
C.systemTraySetLabel(s.nsStatusItem, C.CString(label))
}
func (s *macosSystemTray) destroy() {
// Remove the status item from the status bar and its associated menu
C.systemTrayDestroy(s.nsStatusItem)
}