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/*
* barrier -- mouse and keyboard sharing utility
* Copyright (C) 2012-2016 Symless Ltd.
* Copyright (C) 2004 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file LICENSE that should have accompanied this file.
*
* This package 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "barrier/KeyState.h"
#include "common/stdmap.h"
#include "common/stdset.h"
#include "common/stdvector.h"
#include <Carbon/Carbon.h>
typedef TISInputSourceRef KeyLayout;
class IOSXKeyResource;
//! OS X key state
/*!
A key state for OS X.
*/
class OSXKeyState : public KeyState {
public:
typedef std::vector<KeyID> KeyIDs;
OSXKeyState(IEventQueue* events);
OSXKeyState(IEventQueue* events, barrier::KeyMap& keyMap);
virtual ~OSXKeyState();
//! @name modifiers
//@{
//! Handle modifier key change
/*!
Determines which modifier keys have changed and updates the modifier
state and sends key events as appropriate.
*/
void handleModifierKeys(void* target,
KeyModifierMask oldMask, KeyModifierMask newMask);
//@}
//! @name accessors
//@{
//! Convert OS X modifier mask to barrier mask
/*!
Returns the barrier modifier mask corresponding to the OS X modifier
mask in \p mask.
*/
KeyModifierMask mapModifiersFromOSX(UInt32 mask) const;
//! Convert CG flags-style modifier mask to old-style Carbon
/*!
Still required in a few places for translation calls.
*/
KeyModifierMask mapModifiersToCarbon(UInt32 mask) const;
//! Map key event to keys
/*!
Converts a key event into a sequence of KeyIDs and the shadow modifier
state to a modifier mask. The KeyIDs list, in order, the characters
generated by the key press/release. It returns the id of the button
that was pressed or released, or 0 if the button doesn't map to a known
KeyID.
*/
KeyButton mapKeyFromEvent(KeyIDs& ids,
KeyModifierMask* maskOut, CGEventRef event) const;
//! Map key and mask to native values
/*!
Calculates mac virtual key and mask for a key \p key and modifiers
\p mask. Returns \c true if the key can be mapped, \c false otherwise.
*/
bool mapBarrierHotKeyToMac(KeyID key, KeyModifierMask mask,
UInt32& macVirtualKey,
UInt32& macModifierMask) const;
//@}
// IKeyState overrides
virtual bool fakeCtrlAltDel();
virtual bool fakeMediaKey(KeyID id);
virtual KeyModifierMask
pollActiveModifiers() const;
virtual SInt32 pollActiveGroup() const;
virtual void pollPressedKeys(KeyButtonSet& pressedKeys) const;
CGEventFlags getModifierStateAsOSXFlags();
protected:
// KeyState overrides
virtual void getKeyMap(barrier::KeyMap& keyMap);
virtual void fakeKey(const Keystroke& keystroke);
private:
class KeyResource;
typedef std::vector<KeyLayout> GroupList;
// Add hard coded special keys to a barrier::KeyMap.
void getKeyMapForSpecialKeys(
barrier::KeyMap& keyMap, SInt32 group) const;
// Convert keyboard resource to a key map
bool getKeyMap(barrier::KeyMap& keyMap,
SInt32 group, const IOSXKeyResource& r) const;
// Get the available keyboard groups
bool getGroups(GroupList&) const;
// Change active keyboard group to group
void setGroup(SInt32 group);
// Check if the keyboard layout has changed and update keyboard state
// if so.
void checkKeyboardLayout();
// Send an event for the given modifier key
void handleModifierKey(void* target,
UInt32 virtualKey, KeyID id,
bool down, KeyModifierMask newMask);
// Checks if any in \p ids is a glyph key and if \p isCommand is false.
// If so it adds the AltGr modifier to \p mask. This allows OS X
// servers to use the option key both as AltGr and as a modifier. If
// option is acting as AltGr (i.e. it generates a glyph and there are
// no command modifiers active) then we don't send the super modifier
// to clients because they'd try to match it as a command modifier.
void adjustAltGrModifier(const KeyIDs& ids,
KeyModifierMask* mask, bool isCommand) const;
// Maps an OS X virtual key id to a KeyButton. This simply remaps
// the ids so we don't use KeyButton 0.
static KeyButton mapVirtualKeyToKeyButton(UInt32 keyCode);
// Maps a KeyButton to an OS X key code. This is the inverse of
// mapVirtualKeyToKeyButton.
static UInt32 mapKeyButtonToVirtualKey(KeyButton keyButton);
void init();
// Post a key event to HID manager. It posts an event to HID client, a
// much lower level than window manager which's the target from carbon
// CGEventPost
void postHIDVirtualKey(const UInt8 virtualKeyCode,
const bool postDown);
private:
// OS X uses a physical key if 0 for the 'A' key. barrier reserves
// KeyButton 0 so we offset all OS X physical key ids by this much
// when used as a KeyButton and by minus this much to map a KeyButton
// to a physical button.
enum {
KeyButtonOffset = 1
};
typedef std::map<CFDataRef, SInt32> GroupMap;
typedef std::map<UInt32, KeyID> VirtualKeyMap;
VirtualKeyMap m_virtualKeyMap;
mutable UInt32 m_deadKeyState;
GroupList m_groups;
GroupMap m_groupMap;
bool m_shiftPressed;
bool m_controlPressed;
bool m_altPressed;
bool m_superPressed;
bool m_capsPressed;
};
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