Merge 6c63ba45b6 into 453948155a

.clang-format

@@ -142,4 +142,7 @@ StatementMacros:
   - QT_REQUIRE_VERSION
 UseCRLF: false
 UseTab: Never
+---
+Language: ObjC
+BasedOnStyle: WebKit
 ...

src/hotkeywrapper.hh

@@ -30,8 +30,7 @@
 #endif
 
 #ifdef Q_OS_MAC
-  #define __SECURITYHI__
-  #include <Carbon/Carbon.h>
+  #import <Carbon/Carbon.h>
 #endif
 
 //////////////////////////////////////////////////////////////////////////

src/macos/machotkeywrapper.mm

@@ -2,11 +2,13 @@
  * Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
 
 #include "hotkeywrapper.hh"
-#include <QTimer>
 #include <QMessageBox>
-#include <QPushButton>
 #include <QObject>
+#include <QPushButton>
+#include <QTimer>
+
 #include <memory>
+#include <vector>
 
 #import <Appkit/Appkit.h>
 
@@ -23,120 +25,107 @@
 /// https://github.com/sindresorhus/KeyboardShortcuts/blob/9369a045a72a5296150879781321aecd228171db/readme.md?plain=1#L207
 ///
 
-namespace MacKeyMapping
-{
+namespace MacKeyMapping {
 // Convert Qt key codes to Mac OS X native codes
 
-struct ReverseMapEntry
-{
-  UniChar  character;
-  UInt16   keyCode;
+struct ReverseMapEntry {
+    UniChar character;
+    UInt16 keyCode;
 };
 
-static struct ReverseMapEntry * mapping;
-static int mapEntries = 0;
+static std::vector<ReverseMapEntry> mapping;
 
+/// References:
+/// * https://github.com/libsdl-org/SDL/blob/fc12cc6dfd859a4e01376162a58f12208e539ac6/src/video/cocoa/SDL_cocoakeyboard.m#L345
+/// * https://github.com/qt/qtbase/blob/922369844fcb75386237bca3eef59edd5093f58d/src/gui/platform/darwin/qapplekeymapper.mm#L449
+///
+///  Known possible flaws 1) UCKeyTranslate doesn't handle modifiers at all 2) Handling keyboard switching
 void createMapping()
 {
-  if( mapping == NULL )
-  {
-    TISInputSourceRef inputSourceRef = TISCopyInputSourceForLanguage( CFSTR( "en" ) );
-    if ( !inputSourceRef ) {
-      inputSourceRef = TISCopyCurrentKeyboardInputSource();
-}
-    if ( !inputSourceRef ) {
-      return;
-}
+    if (mapping.empty()) {
+        mapping.reserve(128);
 
-    CFDataRef dataRef = ( CFDataRef )TISGetInputSourceProperty( inputSourceRef,
-                                     kTISPropertyUnicodeKeyLayoutData ); 
-                        // this method returns null under macos Japanese input method(and also Chinese), which causes cmd+C+C not to be registered as a hotkey
-    if( !dataRef )
-    {
-        // solve the null value under Japanese keyboard
-        inputSourceRef = TISCopyCurrentKeyboardLayoutInputSource();
-        dataRef = static_cast<CFDataRef>((TISGetInputSourceProperty(inputSourceRef, kTISPropertyUnicodeKeyLayoutData)));
-        if (!dataRef) {
-          return;
+        TISInputSourceRef inputSourceRef = TISCopyCurrentKeyboardLayoutInputSource();
+        if (!inputSourceRef) {
+            return;
         }
-    }
 
-    const UCKeyboardLayout * keyboardLayoutPtr = ( const UCKeyboardLayout * )CFDataGetBytePtr( dataRef );
-    if( !keyboardLayoutPtr ) {
-      return;
-}
+        CFDataRef uchrDataRef = (CFDataRef)TISGetInputSourceProperty(inputSourceRef, kTISPropertyUnicodeKeyLayoutData);
 
-    mapping = ( struct ReverseMapEntry * )calloc( 128 , sizeof(struct ReverseMapEntry) );
-    if( !mapping ) {
-      return;
-}
+        const UCKeyboardLayout* UCKeyboardLayoutPtr;
 
-    mapEntries = 0;
-
-    for( int i = 0; i < 128; i++ )
-    {
-      UInt32 theDeadKeyState = 0;
-      UniCharCount theLength = 0;
-      if( UCKeyTranslate( keyboardLayoutPtr, i, kUCKeyActionDisplay, 0, LMGetKbdType(),
-                            kUCKeyTranslateNoDeadKeysBit, &theDeadKeyState, 1, &theLength,
-                            &mapping[ mapEntries ].character ) == noErr && theLength > 0 )
-      {
-        if( isprint( mapping[ mapEntries ].character ) )
-        {
-          mapping[ mapEntries++ ].keyCode = i;
+        if (uchrDataRef) {
+            UCKeyboardLayoutPtr = (const UCKeyboardLayout*)CFDataGetBytePtr(uchrDataRef);
         }
-      }
+
+        if (!UCKeyboardLayoutPtr) {
+            return;
+        }
+
+        for (UInt16 i = 0; i < 128; i++) {
+            UInt32 theDeadKeyState = 0;
+            UniCharCount theLength = 0;
+            UniChar temp_char_buf;
+            if (UCKeyTranslate(UCKeyboardLayoutPtr, i, kUCKeyActionDown, 0, LMGetKbdType(),
+                    kUCKeyTranslateNoDeadKeysBit, &theDeadKeyState, 1, &theLength,
+                    &temp_char_buf)
+                    == noErr
+                && theLength > 0) {
+                if (isprint(temp_char_buf)) {
+                    mapping.emplace_back(ReverseMapEntry { temp_char_buf, i });
+                }
+            }
+        }
+        mapping.shrink_to_fit();
     }
-  }
 }
 
-quint32 qtKeyToNativeKey( quint32 key )
+quint32 qtKeyToNativeKey(UniChar key)
 {
-  createMapping();
-  if( mapping == NULL ) {
+    createMapping();
+    if (mapping.empty()) {
+        return 0;
+    }
+
+    for (auto& m : mapping) {
+        if (m.character == key) {
+            return m.keyCode;
+        }
+    }
+
     return 0;
 }
 
-  for( int i = 0; i < mapEntries; i++ )
-  {
-    if( mapping[ i ].character == key ) {
-      return mapping[ i ].keyCode;
-}
-  }
-
-  return 0;
-}
-
 } // namespace MacKeyMapping
 
-static pascal OSStatus hotKeyHandler( EventHandlerCallRef /* nextHandler */, EventRef theEvent, void * userData )
+static pascal OSStatus hotKeyHandler(EventHandlerCallRef /* nextHandler */, EventRef theEvent, void* userData)
 {
-  EventHotKeyID hkID;
-  GetEventParameter( theEvent, kEventParamDirectObject, typeEventHotKeyID, NULL, sizeof(EventHotKeyID), NULL, &hkID );
-  static_cast< HotkeyWrapper * >( userData )->activated( hkID.id );
-  return noErr;
+    EventHotKeyID hkID;
+    GetEventParameter(theEvent, kEventParamDirectObject, typeEventHotKeyID, NULL, sizeof(EventHotKeyID), NULL, &hkID);
+    static_cast<HotkeyWrapper*>(userData)->activated(hkID.id);
+    return noErr;
 }
 
-HotkeyWrapper::HotkeyWrapper( QObject *parent )
+HotkeyWrapper::HotkeyWrapper(QObject* parent)
 {
-(void) parent;
-  hotKeyFunction = NewEventHandlerUPP( hotKeyHandler );
-  EventTypeSpec type;
-  type.eventClass = kEventClassKeyboard;
-  type.eventKind = kEventHotKeyPressed;
-  InstallApplicationEventHandler( hotKeyFunction, 1, &type, this, &handlerRef );
-  keyC = nativeKey( 'c' );
+    (void)parent;
+    hotKeyFunction = NewEventHandlerUPP(hotKeyHandler);
+    EventTypeSpec type;
+    type.eventClass = kEventClassKeyboard;
+    type.eventKind = kEventHotKeyPressed;
+    InstallApplicationEventHandler(hotKeyFunction, 1, &type, this, &handlerRef);
+    keyC = nativeKey('c');
 }
 
 HotkeyWrapper::~HotkeyWrapper()
 {
-  unregister();
-  RemoveEventHandler( handlerRef );
+    unregister();
+    RemoveEventHandler(handlerRef);
 }
 
 void HotkeyWrapper::waitKey2()
 {
-  state2 = false;
+    state2 = false;
 }
 void checkAndRequestAccessibilityPermission()
 {
@@ -159,196 +148,220 @@ void checkAndRequestAccessibilityPermission()
     }
 }
 
-void HotkeyWrapper::activated( int hkId )
+void HotkeyWrapper::activated(int hkId)
 {
-  if ( state2 )
-  { // wait for 2nd key
+    if (state2) { // wait for 2nd key
 
-    waitKey2(); // Cancel the 2nd-key wait stage
+        waitKey2(); // Cancel the 2nd-key wait stage
 
-    if ( hkId == state2waiter.id + 1 ||
-         ( hkId == state2waiter.id && state2waiter.key == state2waiter.key2 ) )
-    {
-      emit hotkeyActivated( state2waiter.handle );
-      return;
+        if (hkId == state2waiter.id + 1 || (hkId == state2waiter.id && state2waiter.key == state2waiter.key2)) {
+            emit hotkeyActivated(state2waiter.handle);
+            return;
+        }
     }
-  }
 
-  for ( int i = 0; i < hotkeys.count(); i++ )
-  {
-    HotkeyStruct &hs = hotkeys[ i ];
-    if( hkId == hs.id )
-    {
-      if( hs.key == keyC && hs.modifier == cmdKey )
-      {
-        checkAndRequestAccessibilityPermission();
-          
-        // If that was a copy-to-clipboard shortcut, re-emit it back so it could
-        // reach its original destination so it could be acted upon.
-        UnregisterEventHotKey( hs.hkRef );
+    for (int i = 0; i < hotkeys.count(); i++) {
+        HotkeyStruct& hs = hotkeys[i];
+        if (hkId == hs.id) {
+            if (hs.key == keyC && hs.modifier == cmdKey) {
+                checkAndRequestAccessibilityPermission();
 
-        sendCmdC();
+                // If that was a copy-to-clipboard shortcut, re-emit it back so it could
+                // reach its original destination so it could be acted upon.
+                UnregisterEventHotKey(hs.hkRef);
 
-        EventHotKeyID hotKeyID;
-        hotKeyID.signature = 'GDHK';
-        hotKeyID.id = hs.id;
+                sendCmdC();
 
-        RegisterEventHotKey( hs.key, hs.modifier, hotKeyID, GetApplicationEventTarget(), 0, &hs.hkRef );
-      }
+                EventHotKeyID hotKeyID;
+                hotKeyID.signature = 'GDHK';
+                hotKeyID.id = hs.id;
 
-      if ( hs.key2 == 0 ) {
-         emit hotkeyActivated( hs.handle );
-         return;
-      }
+                RegisterEventHotKey(hs.key, hs.modifier, hotKeyID, GetApplicationEventTarget(), 0, &hs.hkRef);
+            }
 
-      state2 = true;
-      state2waiter = hs;
-      QTimer::singleShot( 500, this, SLOT( waitKey2() ) );
-      return;
+            if (hs.key2 == 0) {
+                emit hotkeyActivated(hs.handle);
+                return;
+            }
+
+            state2 = true;
+            state2waiter = hs;
+            QTimer::singleShot(500, this, SLOT(waitKey2()));
+            return;
+        }
     }
-  }
 
-  state2 = false;
-  return;
+    state2 = false;
+    return;
 }
 
 void HotkeyWrapper::unregister()
 {
-  for ( int i = 0; i < hotkeys.count(); i++ )
-  {
-    HotkeyStruct const & hk = hotkeys.at( i );
+    for (int i = 0; i < hotkeys.count(); i++) {
+        HotkeyStruct const& hk = hotkeys.at(i);
 
-    UnregisterEventHotKey( hk.hkRef );
+        UnregisterEventHotKey(hk.hkRef);
 
-    if ( hk.key2 && hk.key2 != hk.key ) {
-      UnregisterEventHotKey( hk.hkRef2 );
-}
-  }
+        if (hk.key2 && hk.key2 != hk.key) {
+            UnregisterEventHotKey(hk.hkRef2);
+        }
+    }
 
-  (static_cast< QHotkeyApplication * >( qApp ))->unregisterWrapper( this );
+    (static_cast<QHotkeyApplication*>(qApp))->unregisterWrapper(this);
 }
 
-bool HotkeyWrapper::setGlobalKey( QKeySequence const & seq, int handle )
+bool HotkeyWrapper::setGlobalKey(QKeySequence const& seq, int handle)
 {
-  Config::HotKey hk(seq);
-  return setGlobalKey(hk.key1,hk.key2,hk.modifiers,handle);
+    Config::HotKey hk(seq);
+    return setGlobalKey(hk.key1, hk.key2, hk.modifiers, handle);
 }
 
-bool HotkeyWrapper::setGlobalKey( int key, int key2, Qt::KeyboardModifiers modifier, int handle )
+bool HotkeyWrapper::setGlobalKey(int key, int key2, Qt::KeyboardModifiers modifier, int handle)
 {
-  if ( !key ) {
-    return false; // We don't monitor empty combinations
+    if (!key) {
+        return false; // We don't monitor empty combinations
+    }
+
+    quint32 vk = nativeKey(key);
+
+    if (vk == 0) {
+        return false;
+    }
+
+    quint32 vk2 = key2 ? nativeKey(key2) : 0;
+
+    static int nextId = 1;
+    if (nextId > 0xBFFF - 1) {
+        nextId = 1;
+    }
+
+    quint32 mod = 0;
+    if (modifier & Qt::CTRL) {
+        mod |= cmdKey;
+    }
+    if (modifier & Qt::ALT) {
+        mod |= optionKey;
+    }
+    if (modifier & Qt::SHIFT) {
+        mod |= shiftKey;
+    }
+    if (modifier & Qt::META) {
+        mod |= controlKey;
+    }
+
+    hotkeys.append(HotkeyStruct(vk, vk2, mod, handle, nextId));
+    HotkeyStruct& hk = hotkeys.last();
+
+    EventHotKeyID hotKeyID;
+    hotKeyID.signature = 'GDHK';
+    hotKeyID.id = nextId;
+
+    OSStatus ret = RegisterEventHotKey(vk, mod, hotKeyID, GetApplicationEventTarget(), 0, &hk.hkRef);
+    if (ret != 0) {
+        return false;
+    }
+
+    if (vk2 && vk2 != vk) {
+        hotKeyID.id = nextId + 1;
+        ret = RegisterEventHotKey(vk2, mod, hotKeyID, GetApplicationEventTarget(), 0, &hk.hkRef2);
+    }
+
+    nextId += 2;
+
+    return ret == 0;
 }
 
-  quint32 vk = nativeKey( key );
-
-  if( vk == 0 ) {
-    return false;
-}
-
-  quint32 vk2 = key2 ? nativeKey( key2 ) : 0;
-
-  static int nextId = 1;
-  if( nextId > 0xBFFF - 1 ) {
-    nextId = 1;
-}
-
-  quint32 mod = 0;
-  if( modifier & Qt::CTRL ) {
-    mod |= cmdKey;
-}
-  if( modifier & Qt::ALT ) {
-    mod |= optionKey;
-}
-  if( modifier & Qt::SHIFT ) {
-    mod |= shiftKey;
-}
-  if( modifier & Qt::META ) {
-    mod |= controlKey;
-}
-
-  hotkeys.append( HotkeyStruct( vk, vk2, mod, handle, nextId ) );
-  HotkeyStruct &hk = hotkeys.last();
-
-  EventHotKeyID hotKeyID;
-  hotKeyID.signature = 'GDHK';
-  hotKeyID.id = nextId;
-
-  OSStatus ret = RegisterEventHotKey( vk, mod, hotKeyID, GetApplicationEventTarget(), 0, &hk.hkRef );
-  if ( ret != 0 ) {
-    return false;
-}
-
-  if ( vk2 && vk2 != vk )
-  {
-    hotKeyID.id = nextId + 1;
-    ret = RegisterEventHotKey( vk2, mod, hotKeyID, GetApplicationEventTarget(), 0, &hk.hkRef2 );
-  }
-
-  nextId += 2;
-
-  return ret == 0;
-}
-
-quint32 HotkeyWrapper::nativeKey( int key )
+quint32 HotkeyWrapper::nativeKey(int key)
 {
-  switch( key ) {
-    case Qt::Key_Escape:      return 0x35;
-    case Qt::Key_Tab:         return 0x30;
-    case Qt::Key_Backspace:   return 0x33;
-    case Qt::Key_Return:      return 0x24;
-    case Qt::Key_Enter:       return 0x4c;
-    case Qt::Key_Delete:      return 0x75;
-    case Qt::Key_Clear:       return 0x47;
-    case Qt::Key_Home:        return 0x73;
-    case Qt::Key_End:         return 0x77;
-    case Qt::Key_Left:        return 0x7b;
-    case Qt::Key_Up:          return 0x7e;
-    case Qt::Key_Right:       return 0x7c;
-    case Qt::Key_Down:        return 0x7d;
-    case Qt::Key_PageUp:      return 0x74;
-    case Qt::Key_PageDown:    return 0x79;
-    case Qt::Key_CapsLock:    return 0x57;
-    case Qt::Key_F1:          return 0x7a;
-    case Qt::Key_F2:          return 0x78;
-    case Qt::Key_F3:          return 0x63;
-    case Qt::Key_F4:          return 0x76;
-    case Qt::Key_F5:          return 0x60;
-    case Qt::Key_F6:          return 0x61;
-    case Qt::Key_F7:          return 0x62;
-    case Qt::Key_F8:          return 0x64;
-    case Qt::Key_F9:          return 0x65;
-    case Qt::Key_F10:         return 0x6d;
-    case Qt::Key_F11:         return 0x67;
-    case Qt::Key_F12:         return 0x6f;
-    case Qt::Key_F13:         return 0x69;
-    case Qt::Key_F14:         return 0x6b;
-    case Qt::Key_F15:         return 0x71;
-    case Qt::Key_Help:        return 0x72;
+    switch (key) {
+    case Qt::Key_Escape:
+        return 0x35;
+    case Qt::Key_Tab:
+        return 0x30;
+    case Qt::Key_Backspace:
+        return 0x33;
+    case Qt::Key_Return:
+        return 0x24;
+    case Qt::Key_Enter:
+        return 0x4c;
+    case Qt::Key_Delete:
+        return 0x75;
+    case Qt::Key_Clear:
+        return 0x47;
+    case Qt::Key_Home:
+        return 0x73;
+    case Qt::Key_End:
+        return 0x77;
+    case Qt::Key_Left:
+        return 0x7b;
+    case Qt::Key_Up:
+        return 0x7e;
+    case Qt::Key_Right:
+        return 0x7c;
+    case Qt::Key_Down:
+        return 0x7d;
+    case Qt::Key_PageUp:
+        return 0x74;
+    case Qt::Key_PageDown:
+        return 0x79;
+    case Qt::Key_CapsLock:
+        return 0x57;
+    case Qt::Key_F1:
+        return 0x7a;
+    case Qt::Key_F2:
+        return 0x78;
+    case Qt::Key_F3:
+        return 0x63;
+    case Qt::Key_F4:
+        return 0x76;
+    case Qt::Key_F5:
+        return 0x60;
+    case Qt::Key_F6:
+        return 0x61;
+    case Qt::Key_F7:
+        return 0x62;
+    case Qt::Key_F8:
+        return 0x64;
+    case Qt::Key_F9:
+        return 0x65;
+    case Qt::Key_F10:
+        return 0x6d;
+    case Qt::Key_F11:
+        return 0x67;
+    case Qt::Key_F12:
+        return 0x6f;
+    case Qt::Key_F13:
+        return 0x69;
+    case Qt::Key_F14:
+        return 0x6b;
+    case Qt::Key_F15:
+        return 0x71;
+    case Qt::Key_Help:
+        return 0x72;
     default:;
-  }
-  return MacKeyMapping::qtKeyToNativeKey( QChar( key ).toLower().toLatin1() );
+    }
+    return MacKeyMapping::qtKeyToNativeKey(QChar(key).toLower().unicode());
 }
 
 void HotkeyWrapper::sendCmdC()
 {
-  CGEventFlags flags = kCGEventFlagMaskCommand;
-  CGEventRef ev;
-  CGEventSourceRef source = CGEventSourceCreate( kCGEventSourceStateCombinedSessionState );
+    CGEventFlags flags = kCGEventFlagMaskCommand;
+    CGEventRef ev;
+    CGEventSourceRef source = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState);
 
-  //press down
-  ev = CGEventCreateKeyboardEvent( source, keyC, true );
-  CGEventSetFlags( ev, CGEventFlags( flags | CGEventGetFlags( ev ) ) ); //combine flags
-  CGEventPost( kCGAnnotatedSessionEventTap, ev );
-  CFRelease( ev );
+    // press down
+    ev = CGEventCreateKeyboardEvent(source, keyC, true);
+    CGEventSetFlags(ev, CGEventFlags(flags | CGEventGetFlags(ev))); // combine flags
+    CGEventPost(kCGAnnotatedSessionEventTap, ev);
+    CFRelease(ev);
 
-  //press up
-  ev = CGEventCreateKeyboardEvent( source, keyC, false );
-  CGEventSetFlags( ev, CGEventFlags( flags | CGEventGetFlags( ev ) ) ); //combine flags
-  CGEventPost( kCGAnnotatedSessionEventTap, ev );
-  CFRelease( ev );
+    // press up
+    ev = CGEventCreateKeyboardEvent(source, keyC, false);
+    CGEventSetFlags(ev, CGEventFlags(flags | CGEventGetFlags(ev))); // combine flags
+    CGEventPost(kCGAnnotatedSessionEventTap, ev);
+    CFRelease(ev);
 
-  CFRelease( source );
+    CFRelease(source);
 }
 
 EventHandlerUPP HotkeyWrapper::hotKeyFunction = NULL;

src/macos/macmouseover.mm

@@ -1,372 +1,344 @@
 #include "macmouseover.hh"
-#include <AppKit/NSTouch.h>
-#include <AppKit/NSEvent.h>
-#include <AppKit/NSScreen.h>
-#include <Foundation/NSAutoreleasePool.h>
-#include <Foundation/Foundation.h>
-
-#ifndef AVAILABLE_MAC_OS_X_VERSION_10_11_AND_LATER
-#define kAXValueTypeCGPoint kAXValueCGPointType
-#define kAXValueTypeCFRange kAXValueCFRangeType
-#endif
+#import <AppKit/AppKit.h>
 
 const int mouseOverInterval = 300;
 
-CGEventRef eventCallback( CGEventTapProxy proxy, CGEventType type, CGEventRef event, void *refcon )
+CGEventRef eventCallback(CGEventTapProxy proxy, CGEventType type, CGEventRef event, void* refcon)
 {
-(void) proxy;
-  if( type != kCGEventMouseMoved ) {
+    (void)proxy;
+    if (type != kCGEventMouseMoved) {
+        return event;
+    }
+    static_cast<MacMouseOver*>(refcon)->mouseMoved();
     return event;
 }
-  static_cast< MacMouseOver * >( refcon )->mouseMoved();
-  return event;
-}
 
-static CGPoint carbonScreenPointFromCocoaScreenPoint( NSPoint cocoaPoint )
+static CGPoint carbonScreenPointFromCocoaScreenPoint(NSPoint cocoaPoint)
 {
-  NSScreen *foundScreen = nil;
-  CGPoint thePoint;
+    NSScreen* foundScreen = nil;
+    CGPoint thePoint;
 
-  for (NSScreen *screen in [NSScreen screens]) {
-    if (NSPointInRect(cocoaPoint, [screen frame])) {
-        foundScreen = screen;
+    for (NSScreen* screen in [NSScreen screens]) {
+        if (NSPointInRect(cocoaPoint, [screen frame])) {
+            foundScreen = screen;
+        }
     }
-  }
 
-  if (foundScreen) {
-    CGFloat screenHeight = [foundScreen frame].size.height;
-    thePoint = CGPointMake(cocoaPoint.x, screenHeight - cocoaPoint.y - 1);
-  }
-  else {
-    thePoint = CGPointMake(0.0, 0.0);
+    if (foundScreen) {
+        CGFloat screenHeight = [foundScreen frame].size.height;
+        thePoint = CGPointMake(cocoaPoint.x, screenHeight - cocoaPoint.y - 1);
+    } else {
+        thePoint = CGPointMake(0.0, 0.0);
+    }
+
+    return thePoint;
 }
 
-  return thePoint;
-}
-
-MacMouseOver & MacMouseOver::instance()
+MacMouseOver& MacMouseOver::instance()
 {
-  static MacMouseOver m;
+    static MacMouseOver m;
 
-  return m;
+    return m;
 }
 
-MacMouseOver::MacMouseOver() :
-  pPref(NULL)
-, tapRef( 0 )
-, loop( 0 )
+MacMouseOver::MacMouseOver()
+    : pPref(NULL)
+    , tapRef(0)
+    , loop(0)
 {
-  mouseTimer.setSingleShot( true );
-  connect( &mouseTimer, SIGNAL( timeout() ), this, SLOT( timerShot() ) );
+    mouseTimer.setSingleShot(true);
+    connect(&mouseTimer, SIGNAL(timeout()), this, SLOT(timerShot()));
 
-  elementSystemWide = AXUIElementCreateSystemWide();
+    elementSystemWide = AXUIElementCreateSystemWide();
 }
 
 MacMouseOver::~MacMouseOver()
 {
-  disableMouseOver();
+    disableMouseOver();
 
-  if( tapRef ) {
-    CFRelease( tapRef );
+    if (tapRef) {
+        CFRelease(tapRef);
+    }
+
+    if (loop) {
+        CFRelease(loop);
+    }
+
+    if (elementSystemWide) {
+        CFRelease(elementSystemWide);
+    }
 }
 
-  if( loop ) {
-    CFRelease( loop );
-}
-
-  if( elementSystemWide ) {
-    CFRelease( elementSystemWide );
-}
-}
-
-QString MacMouseOver::CFStringRefToQString( CFStringRef str )
+QString MacMouseOver::CFStringRefToQString(CFStringRef str)
 {
-  int length = CFStringGetLength( str );
-  if( length == 0 ) {
-    return QString();
-}
+    int length = CFStringGetLength(str);
+    if (length == 0) {
+        return QString();
+    }
 
-  UniChar *chars = new UniChar[ length ];
-  CFStringGetCharacters( str, CFRangeMake( 0, length ), chars );
-  
-  QString result = QString::fromUtf16( (char16_t*)chars, length );
+    UniChar* chars = new UniChar[length];
+    CFStringGetCharacters(str, CFRangeMake(0, length), chars);
 
-  delete[] chars;
-  return result;
+    QString result = QString::fromUtf16((char16_t*)chars, length);
+
+    delete[] chars;
+    return result;
 }
 
 void MacMouseOver::mouseMoved()
 {
-  mouseTimer.start( mouseOverInterval );
+    mouseTimer.start(mouseOverInterval);
 }
 
 void MacMouseOver::enableMouseOver()
 {
-  mouseTimer.stop();
-  if( !isAXAPIEnabled() ) {
-    return;
-}
-  if( !tapRef ) {
-    tapRef = CGEventTapCreate( kCGAnnotatedSessionEventTap, kCGHeadInsertEventTap,
-                               kCGEventTapOptionListenOnly,
-                               CGEventMaskBit( kCGEventMouseMoved ),
-                               eventCallback, this );
-}
-  if( !tapRef ) {
-    return;
-}
-  if( !loop ) {
-    loop = CFMachPortCreateRunLoopSource( kCFAllocatorDefault, tapRef, 0 );
-}
-  if( loop ) {
-    CFRunLoopAddSource( CFRunLoopGetMain(), loop, kCFRunLoopCommonModes );
-}
+    mouseTimer.stop();
+    if (!isAXAPIEnabled()) {
+        return;
+    }
+    if (!tapRef) {
+        tapRef = CGEventTapCreate(kCGAnnotatedSessionEventTap, kCGHeadInsertEventTap,
+            kCGEventTapOptionListenOnly,
+            CGEventMaskBit(kCGEventMouseMoved),
+            eventCallback, this);
+    }
+    if (!tapRef) {
+        return;
+    }
+    if (!loop) {
+        loop = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, tapRef, 0);
+    }
+    if (loop) {
+        CFRunLoopAddSource(CFRunLoopGetMain(), loop, kCFRunLoopCommonModes);
+    }
 }
 
 void MacMouseOver::disableMouseOver()
 {
-  mouseTimer.stop();
-  if( loop ) {
-    CFRunLoopRemoveSource( CFRunLoopGetMain(), loop, kCFRunLoopCommonModes );
-}
+    mouseTimer.stop();
+    if (loop) {
+        CFRunLoopRemoveSource(CFRunLoopGetMain(), loop, kCFRunLoopCommonModes);
+    }
 }
 
 void MacMouseOver::timerShot()
 {
-  if( mouseMutex.tryLock( 0 ) ) {
-    mouseMutex.unlock();
-  } else {
-    return;
-}
-  if( !pPref ) {
-    return;
-}
-  if( !pPref->enableScanPopupModifiers || checkModifiersPressed( pPref->scanPopupModifiers ) ) {
-    handlePosition();
-}
+    if (mouseMutex.tryLock(0)) {
+        mouseMutex.unlock();
+    } else {
+        return;
+    }
+    if (!pPref) {
+        return;
+    }
+    if (!pPref->enableScanPopupModifiers || checkModifiersPressed(pPref->scanPopupModifiers)) {
+        handlePosition();
+    }
 }
 
 void MacMouseOver::handlePosition()
 {
-  QMutexLocker _( &mouseMutex );
+    QMutexLocker _(&mouseMutex);
 
-  QString strToTranslate;
+    QString strToTranslate;
 
-  NSAutoreleasePool * pool = [ [ NSAutoreleasePool alloc ] init ];
-  CGPoint pt = carbonScreenPointFromCocoaScreenPoint( [NSEvent mouseLocation] );
-  [ pool drain ];
+    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+    CGPoint pt = carbonScreenPointFromCocoaScreenPoint([NSEvent mouseLocation]);
+    [pool drain];
 
-  CFArrayRef names = 0;
+    CFArrayRef names = 0;
 
-  AXUIElementRef elem = 0;
-  AXError err = AXUIElementCopyElementAtPosition( elementSystemWide, pt.x, pt.y, &elem );
+    AXUIElementRef elem = 0;
+    AXError err = AXUIElementCopyElementAtPosition(elementSystemWide, pt.x, pt.y, &elem);
 
-  if( err != kAXErrorSuccess ) {
-    return;
-}
+    if (err != kAXErrorSuccess) {
+        return;
+    }
 
-  for( ; ; )
-  {
-    CFTypeRef parameter = AXValueCreate( kAXValueTypeCGPoint, &pt );
-    CFTypeRef rangeValue;
-    err = AXUIElementCopyParameterizedAttributeNames( elem, &names );
-    if( err != kAXErrorSuccess ) {
-      break;
-}
-
-    int numOfAttributes = CFArrayGetCount( names );
-    if( CFArrayContainsValue( names, CFRangeMake( 0, numOfAttributes ), CFSTR( "AXRangeForPosition" ) ) )
-    {
-      // Standard interface
-      err = AXUIElementCopyParameterizedAttributeValue( elem, kAXRangeForPositionParameterizedAttribute,
-                                                            parameter, ( CFTypeRef * )&rangeValue );
-      CFRelease( parameter );
-      if( err != kAXErrorSuccess ) {
-        break;
-}
-
-      CFStringRef stringValue;
-
-      CFRange decodedRange = CFRangeMake( 0, 0 );
-      bool b = AXValueGetValue( (AXValueRef)rangeValue, kAXValueTypeCFRange, &decodedRange );
-      CFRelease( rangeValue );
-      if( b )
-      {
-        int fromPos = decodedRange.location - 127;
-        if( fromPos < 0 ) {
-          fromPos = 0;
-}
-        int wordPos = decodedRange.location - fromPos;  // Cursor position in result string
-
-        CFRange range = CFRangeMake( fromPos, wordPos + 1 );
-        parameter = AXValueCreate( kAXValueTypeCFRange, &range );
-        err = AXUIElementCopyParameterizedAttributeValue( elem, kAXStringForRangeParameterizedAttribute,
-                                                            parameter, (CFTypeRef *)&stringValue );
-        CFRelease( parameter );
-        if( err != kAXErrorSuccess ) {
-          break;
-}
-
-        strToTranslate = CFStringRefToQString( stringValue );
-        CFRelease( stringValue );
-
-        // Read string further
-        for( int i = 1; i < 128; i++ )
-        {
-          range = CFRangeMake( decodedRange.location + i, 1 );
-          parameter = AXValueCreate( kAXValueTypeCFRange, &range );
-          err = AXUIElementCopyParameterizedAttributeValue( elem, kAXStringForRangeParameterizedAttribute,
-                                                              parameter, (CFTypeRef *)&stringValue );
-          CFRelease( parameter );
-
-          if( err != kAXErrorSuccess ) {
+    for (;;) {
+        CFTypeRef parameter = AXValueCreate(kAXValueTypeCGPoint, &pt);
+        CFTypeRef rangeValue;
+        err = AXUIElementCopyParameterizedAttributeNames(elem, &names);
+        if (err != kAXErrorSuccess) {
             break;
-}
-
-          QString s = CFStringRefToQString( stringValue );
-          CFRelease( stringValue );
-
-          if( s[ 0 ].isLetterOrNumber() || s[ 0 ] == '-' ) {
-            strToTranslate += s;
-          } else {
-            break;
-}
         }
 
-        handleRetrievedString( strToTranslate, wordPos );
-      }
-    }
-    else if( CFArrayContainsValue( names, CFRangeMake( 0, numOfAttributes ), CFSTR( "AXTextMarkerForPosition" ) ) )
-    {
-      // Safari interface
-      CFTypeRef marker, range;
-      CFStringRef str;
-      err = AXUIElementCopyParameterizedAttributeValue( elem, CFSTR( "AXTextMarkerForPosition" ),
-                                                            parameter, ( CFTypeRef * )&marker );
-      CFRelease( parameter );
-      if( err != kAXErrorSuccess ) {
+        int numOfAttributes = CFArrayGetCount(names);
+        if (CFArrayContainsValue(names, CFRangeMake(0, numOfAttributes), CFSTR("AXRangeForPosition"))) {
+            // Standard interface
+            err = AXUIElementCopyParameterizedAttributeValue(elem, kAXRangeForPositionParameterizedAttribute,
+                parameter, (CFTypeRef*)&rangeValue);
+            CFRelease(parameter);
+            if (err != kAXErrorSuccess) {
+                break;
+            }
+
+            CFStringRef stringValue;
+
+            CFRange decodedRange = CFRangeMake(0, 0);
+            bool b = AXValueGetValue((AXValueRef)rangeValue, kAXValueTypeCFRange, &decodedRange);
+            CFRelease(rangeValue);
+            if (b) {
+                int fromPos = decodedRange.location - 127;
+                if (fromPos < 0) {
+                    fromPos = 0;
+                }
+                int wordPos = decodedRange.location - fromPos; // Cursor position in result string
+
+                CFRange range = CFRangeMake(fromPos, wordPos + 1);
+                parameter = AXValueCreate(kAXValueTypeCFRange, &range);
+                err = AXUIElementCopyParameterizedAttributeValue(elem, kAXStringForRangeParameterizedAttribute,
+                    parameter, (CFTypeRef*)&stringValue);
+                CFRelease(parameter);
+                if (err != kAXErrorSuccess) {
+                    break;
+                }
+
+                strToTranslate = CFStringRefToQString(stringValue);
+                CFRelease(stringValue);
+
+                // Read string further
+                for (int i = 1; i < 128; i++) {
+                    range = CFRangeMake(decodedRange.location + i, 1);
+                    parameter = AXValueCreate(kAXValueTypeCFRange, &range);
+                    err = AXUIElementCopyParameterizedAttributeValue(elem, kAXStringForRangeParameterizedAttribute,
+                        parameter, (CFTypeRef*)&stringValue);
+                    CFRelease(parameter);
+
+                    if (err != kAXErrorSuccess) {
+                        break;
+                    }
+
+                    QString s = CFStringRefToQString(stringValue);
+                    CFRelease(stringValue);
+
+                    if (s[0].isLetterOrNumber() || s[0] == '-') {
+                        strToTranslate += s;
+                    } else {
+                        break;
+                    }
+                }
+
+                handleRetrievedString(strToTranslate, wordPos);
+            }
+        } else if (CFArrayContainsValue(names, CFRangeMake(0, numOfAttributes), CFSTR("AXTextMarkerForPosition"))) {
+            // Safari interface
+            CFTypeRef marker, range;
+            CFStringRef str;
+            err = AXUIElementCopyParameterizedAttributeValue(elem, CFSTR("AXTextMarkerForPosition"),
+                parameter, (CFTypeRef*)&marker);
+            CFRelease(parameter);
+            if (err != kAXErrorSuccess) {
+                break;
+            }
+
+            err = AXUIElementCopyParameterizedAttributeValue(elem, CFSTR("AXLeftWordTextMarkerRangeForTextMarker"),
+                marker, (CFTypeRef*)&range);
+            CFRelease(marker);
+            if (err != kAXErrorSuccess) {
+                break;
+            }
+
+            err = AXUIElementCopyParameterizedAttributeValue(elem, CFSTR("AXStringForTextMarkerRange"),
+                range, (CFTypeRef*)&str);
+            CFRelease(range);
+            if (err == kAXErrorSuccess) {
+                strToTranslate = CFStringRefToQString(str);
+                CFRelease(str);
+                handleRetrievedString(strToTranslate, 0);
+            }
+        }
         break;
-}
-
-      err = AXUIElementCopyParameterizedAttributeValue( elem, CFSTR( "AXLeftWordTextMarkerRangeForTextMarker" ),
-                                                        marker, ( CFTypeRef * )&range );
-      CFRelease( marker );
-      if( err != kAXErrorSuccess ) {
-        break;
-}
-
-      err = AXUIElementCopyParameterizedAttributeValue( elem, CFSTR( "AXStringForTextMarkerRange" ),
-                                                        range, ( CFTypeRef * )&str );
-      CFRelease( range );
-      if( err == kAXErrorSuccess )
-      {
-        strToTranslate = CFStringRefToQString( str );
-        CFRelease( str );
-        handleRetrievedString( strToTranslate, 0 );
-      }
     }
-    break;
-  }
-  if( elem ) {
-    CFRelease( elem );
-}
-  if( names ) {
-    CFRelease( names );
-}
+    if (elem) {
+        CFRelease(elem);
+    }
+    if (names) {
+        CFRelease(names);
+    }
 }
 
-void MacMouseOver::handleRetrievedString( QString & wordSeq, int wordSeqPos )
+void MacMouseOver::handleRetrievedString(QString& wordSeq, int wordSeqPos)
 {
 
-  if( wordSeq.isEmpty() ) {
-    return;
-}
-
-  // locate the word inside the sequence
-
-  QString word;
-
-  if ( wordSeq[ wordSeqPos ].isSpace() )
-  {
-    // Currently we ignore such cases
-    return;
-  }
-  else
-  if ( !wordSeq[ wordSeqPos ].isLetterOrNumber() )
-  {
-    // Special case: the cursor points to something which doesn't look like a
-    // middle of the word -- assume that it's something that joins two words
-    // together.
-
-    int begin = wordSeqPos;
-
-    for( ; begin; --begin ) {
-      if ( !wordSeq[ begin - 1 ].isLetterOrNumber() ) {
-        break;
-}
-}
-
-    int end = wordSeqPos;
-
-    while( ++end < wordSeq.size() ) {
-      if ( !wordSeq[ end ].isLetterOrNumber() ) {
-        break;
-}
-}
-
-    if ( end - begin == 1 )
-    {
-      // Well, turns out it was just a single non-letter char, discard it
-      return;
+    if (wordSeq.isEmpty()) {
+        return;
     }
 
-    word = wordSeq.mid( begin, end - begin );
-  }
-  else
-  {
-    // Cursor points to a letter -- cut the word it points to
+    // locate the word inside the sequence
 
-    int begin = wordSeqPos;
+    QString word;
 
-    for( ; begin; --begin ) {
-      if ( !wordSeq[ begin - 1 ].isLetterOrNumber() ) {
-        break;
-}
-}
+    if (wordSeq[wordSeqPos].isSpace()) {
+        // Currently we ignore such cases
+        return;
+    } else if (!wordSeq[wordSeqPos].isLetterOrNumber()) {
+        // Special case: the cursor points to something which doesn't look like a
+        // middle of the word -- assume that it's something that joins two words
+        // together.
 
-    int end = wordSeqPos;
+        int begin = wordSeqPos;
 
-    while( ++end < wordSeq.size() )
-    {
-      if ( !wordSeq[ end ].isLetterOrNumber() ) {
-        break;
-}
+        for (; begin; --begin) {
+            if (!wordSeq[begin - 1].isLetterOrNumber()) {
+                break;
+            }
+        }
+
+        int end = wordSeqPos;
+
+        while (++end < wordSeq.size()) {
+            if (!wordSeq[end].isLetterOrNumber()) {
+                break;
+            }
+        }
+
+        if (end - begin == 1) {
+            // Well, turns out it was just a single non-letter char, discard it
+            return;
+        }
+
+        word = wordSeq.mid(begin, end - begin);
+    } else {
+        // Cursor points to a letter -- cut the word it points to
+
+        int begin = wordSeqPos;
+
+        for (; begin; --begin) {
+            if (!wordSeq[begin - 1].isLetterOrNumber()) {
+                break;
+            }
+        }
+
+        int end = wordSeqPos;
+
+        while (++end < wordSeq.size()) {
+            if (!wordSeq[end].isLetterOrNumber()) {
+                break;
+            }
+        }
+        word = wordSeq.mid(begin, end - begin);
     }
-    word = wordSeq.mid( begin, end - begin );
-  }
 
-  // See if we have an RTL char. Reverse the whole string if we do.
+    // See if we have an RTL char. Reverse the whole string if we do.
 
-  for( int x = 0; x < word.size(); ++x )
-  {
-    QChar::Direction d = word[ x ].direction();
+    for (int x = 0; x < word.size(); ++x) {
+        QChar::Direction d = word[x].direction();
 
-    if ( d == QChar::DirR || d == QChar::DirAL ||
-         d == QChar::DirRLE || d == QChar::DirRLO )
-    {
-      std::reverse( word.begin(), word.end() );
-      break;
+        if (d == QChar::DirR || d == QChar::DirAL || d == QChar::DirRLE || d == QChar::DirRLO) {
+            std::reverse(word.begin(), word.end());
+            break;
+        }
     }
-  }
 
-  emit instance().hovered( word, false );
+    emit instance().hovered(word, false);
 }
 
 bool MacMouseOver::isAXAPIEnabled()
 {
-  if( NSFoundationVersionNumber >= 1000 ) {  // MacOS 10.9+
-    return AXIsProcessTrusted();
-}
+    if (NSFoundationVersionNumber >= 1000) { // MacOS 10.9+
+        return AXIsProcessTrusted();
+    }
 
-  return AXAPIEnabled();
+    return AXAPIEnabled();
 }