Migrate away from deprecated methods for setting the standard application on macOS

The methods for checking if qBittorrent is set as the standard application for opening torrent files and magnet links and setting qBittorrent as the standard application for those is using deprecated methods now. For example `LSCopyDefaultHandlerForURLScheme` and `kUTTagClassFilenameExtension`.
The new methods have been moved to `macutilities.mm` because in `os.cpp` cocoa couldn't be imported.

PR #23059.

src/base/utils/os.cpp

@@ -193,72 +193,6 @@ void Utils::OS::shutdownComputer([[maybe_unused]] const ShutdownDialogAction &ac
 #endif
 }
 
-#ifdef Q_OS_MACOS
-namespace
-{
-    const CFStringRef torrentExtension = CFSTR("torrent");
-    const CFStringRef magnetUrlScheme = CFSTR("magnet");
-}
-
-bool Utils::OS::isTorrentFileAssocSet()
-{
-    bool isSet = false;
-    const CFStringRef torrentId = ::UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, torrentExtension, NULL);
-    if (torrentId != NULL)
-    {
-        const CFStringRef defaultHandlerId = ::LSCopyDefaultRoleHandlerForContentType(torrentId, kLSRolesViewer);
-        if (defaultHandlerId != NULL)
-        {
-            const CFStringRef myBundleId = ::CFBundleGetIdentifier(::CFBundleGetMainBundle());
-            if (myBundleId != NULL)
-                isSet = ::CFStringCompare(myBundleId, defaultHandlerId, 0) == kCFCompareEqualTo;
-            ::CFRelease(defaultHandlerId);
-        }
-        ::CFRelease(torrentId);
-    }
-    return isSet;
-}
-
-void Utils::OS::setTorrentFileAssoc()
-{
-    if (isTorrentFileAssocSet())
-        return;
-
-    const CFStringRef torrentId = ::UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, torrentExtension, NULL);
-    if (torrentId != NULL)
-    {
-        const CFStringRef myBundleId = ::CFBundleGetIdentifier(::CFBundleGetMainBundle());
-        if (myBundleId != NULL)
-            ::LSSetDefaultRoleHandlerForContentType(torrentId, kLSRolesViewer, myBundleId);
-        ::CFRelease(torrentId);
-    }
-}
-
-bool Utils::OS::isMagnetLinkAssocSet()
-{
-    bool isSet = false;
-    const CFStringRef defaultHandlerId = ::LSCopyDefaultHandlerForURLScheme(magnetUrlScheme);
-    if (defaultHandlerId != NULL)
-    {
-        const CFStringRef myBundleId = ::CFBundleGetIdentifier(::CFBundleGetMainBundle());
-        if (myBundleId != NULL)
-            isSet = ::CFStringCompare(myBundleId, defaultHandlerId, 0) == kCFCompareEqualTo;
-        ::CFRelease(defaultHandlerId);
-    }
-    return isSet;
-}
-
-void Utils::OS::setMagnetLinkAssoc()
-{
-    if (isMagnetLinkAssocSet())
-        return;
-
-    const CFStringRef myBundleId = ::CFBundleGetIdentifier(::CFBundleGetMainBundle());
-    if (myBundleId != NULL)
-        ::LSSetDefaultHandlerForURLScheme(magnetUrlScheme, myBundleId);
-}
-#endif // Q_OS_MACOS
-
 #ifdef Q_OS_WIN
 Path Utils::OS::windowsSystemPath()
 {

src/base/utils/os.h

@@ -48,13 +48,6 @@ namespace Utils::OS
 {
     void shutdownComputer(const ShutdownDialogAction &action);
 
-#ifdef Q_OS_MACOS
-    bool isTorrentFileAssocSet();
-    void setTorrentFileAssoc();
-    bool isMagnetLinkAssocSet();
-    void setMagnetLinkAssoc();
-#endif // Q_OS_MACOS
-
 #ifdef Q_OS_WIN
     Path windowsSystemPath();
 

src/gui/macutilities.h

@@ -44,6 +44,11 @@ namespace MacUtils
     void displayNotification(const QString &title, const QString &message);
     void openFiles(const PathList &pathList);
 
+    bool isMagnetLinkAssocSet();
+    void setMagnetLinkAssoc();
+    bool isTorrentFileAssocSet();
+    void setTorrentFileAssoc();
+
     QString badgeLabelText();
     void setBadgeLabelText(const QString &text);
 }

src/gui/macutilities.mm

@@ -143,6 +143,46 @@ namespace MacUtils
         }
     }
 
+    bool isMagnetLinkAssocSet()
+    {
+        @autoreleasepool
+        {
+            const NSURL *magnetStandardURL = [[NSWorkspace sharedWorkspace] URLForApplicationToOpenURL:[NSURL URLWithString:@"magnet:"]];
+            const NSURL *qbtURL = [[NSBundle mainBundle] bundleURL];
+            return [magnetStandardURL isEqual:qbtURL];
+        }
+    }
+
+    void setMagnetLinkAssoc()
+    {
+        @autoreleasepool
+        {
+            [[NSWorkspace sharedWorkspace] setDefaultApplicationAtURL:[[NSBundle mainBundle] bundleURL]
+                toOpenURLsWithScheme:@"magnet" completionHandler:nil];
+        }
+    }
+
+    bool isTorrentFileAssocSet()
+    {
+        @autoreleasepool
+        {
+            const NSURL *torrentStandardURL = [[NSWorkspace sharedWorkspace]
+                URLForApplicationToOpenContentType:[UTType typeWithFilenameExtension:@"torrent"]];
+            const NSURL *qbtURL = [[NSBundle mainBundle] bundleURL];
+            return [torrentStandardURL isEqual:qbtURL];
+        }
+    }
+
+    void setTorrentFileAssoc()
+    {
+        @autoreleasepool
+        {
+            [[NSWorkspace sharedWorkspace] setDefaultApplicationAtURL:[[NSBundle mainBundle] bundleURL]
+                toOpenContentType:[UTType typeWithFilenameExtension:@"torrent"]
+                completionHandler:nil];
+        }
+    }
+
     QString badgeLabelText()
     {
         return QString::fromNSString(NSApp.dockTile.badgeLabel);

src/gui/optionsdialog.cpp

@@ -88,9 +88,9 @@
 #include "base/net/dnsupdater.h"
 #endif
 
-#if defined Q_OS_MACOS || defined Q_OS_WIN
+#ifdef Q_OS_MACOS
-#include "base/utils/os.h"
+#include "macutilities.h"
-#endif // defined Q_OS_MACOS || defined Q_OS_WIN
+#endif
 
 #define SETTINGS_KEY(name) u"OptionsDialog/" name
 
@@ -329,9 +329,9 @@ void OptionsDialog::loadBehaviorTabOptions()
 
 #ifdef Q_OS_MACOS
     m_ui->checkShowSystray->setVisible(false);
-    m_ui->checkAssociateTorrents->setChecked(Utils::OS::isTorrentFileAssocSet());
+    m_ui->checkAssociateTorrents->setChecked(MacUtils::isTorrentFileAssocSet());
     m_ui->checkAssociateTorrents->setEnabled(!m_ui->checkAssociateTorrents->isChecked());
-    m_ui->checkAssociateMagnetLinks->setChecked(Utils::OS::isMagnetLinkAssocSet());
+    m_ui->checkAssociateMagnetLinks->setChecked(MacUtils::isMagnetLinkAssocSet());
     m_ui->checkAssociateMagnetLinks->setEnabled(!m_ui->checkAssociateMagnetLinks->isChecked());
 #endif
 
@@ -517,14 +517,14 @@ void OptionsDialog::saveBehaviorTabOptions() const
 #ifdef Q_OS_MACOS
     if (m_ui->checkAssociateTorrents->isChecked())
     {
-        Utils::OS::setTorrentFileAssoc();
+        MacUtils::setTorrentFileAssoc();
-        m_ui->checkAssociateTorrents->setChecked(Utils::OS::isTorrentFileAssocSet());
+        m_ui->checkAssociateTorrents->setChecked(MacUtils::isTorrentFileAssocSet());
         m_ui->checkAssociateTorrents->setEnabled(!m_ui->checkAssociateTorrents->isChecked());
     }
     if (m_ui->checkAssociateMagnetLinks->isChecked())
     {
-        Utils::OS::setMagnetLinkAssoc();
+        MacUtils::setMagnetLinkAssoc();
-        m_ui->checkAssociateMagnetLinks->setChecked(Utils::OS::isMagnetLinkAssocSet());
+        m_ui->checkAssociateMagnetLinks->setChecked(MacUtils::isMagnetLinkAssocSet());
         m_ui->checkAssociateMagnetLinks->setEnabled(!m_ui->checkAssociateMagnetLinks->isChecked());
     }
 #endif