313 lines
9.7 KiB
C++
313 lines
9.7 KiB
C++
/*
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* synergy-plus -- mouse and keyboard sharing utility
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* Copyright (C) 2009 The Synergy+ Project
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* Copyright (C) 2002 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PROTOCOLTYPES_H
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#define PROTOCOLTYPES_H
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#include "BasicTypes.h"
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// protocol version number
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// 1.0: initial protocol
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// 1.1: adds KeyCode to key press, release, and repeat
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// 1.2: adds mouse relative motion
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// 1.3: adds keep alive and deprecates heartbeats,
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// adds horizontal mouse scrolling
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static const SInt16 kProtocolMajorVersion = 1;
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static const SInt16 kProtocolMinorVersion = 3;
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// default contact port number
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static const UInt16 kDefaultPort = 24800;
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// maximum total length for greeting returned by client
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static const UInt32 kMaxHelloLength = 1024;
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// time between kMsgCKeepAlive (in seconds). a non-positive value disables
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// keep alives. this is the default rate that can be overridden using an
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// option.
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static const double kKeepAliveRate = 3.0;
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// number of skipped kMsgCKeepAlive messages that indicates a problem
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static const double kKeepAlivesUntilDeath = 3.0;
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// obsolete heartbeat stuff
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static const double kHeartRate = -1.0;
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static const double kHeartBeatsUntilDeath = 3.0;
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// direction constants
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enum EDirection {
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kNoDirection,
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kLeft,
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kRight,
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kTop,
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kBottom,
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kFirstDirection = kLeft,
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kLastDirection = kBottom,
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kNumDirections = kLastDirection - kFirstDirection + 1
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};
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enum EDirectionMask {
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kNoDirMask = 0,
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kLeftMask = 1 << kLeft,
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kRightMask = 1 << kRight,
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kTopMask = 1 << kTop,
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kBottomMask = 1 << kBottom
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};
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//
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// message codes (trailing NUL is not part of code). in comments, $n
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// refers to the n'th argument (counting from one). message codes are
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// always 4 bytes optionally followed by message specific parameters
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// except those for the greeting handshake.
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//
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//
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// positions and sizes are signed 16 bit integers.
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//
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//
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// greeting handshake messages
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//
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// say hello to client; primary -> secondary
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// $1 = protocol major version number supported by server. $2 =
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// protocol minor version number supported by server.
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extern const char* kMsgHello;
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// respond to hello from server; secondary -> primary
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// $1 = protocol major version number supported by client. $2 =
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// protocol minor version number supported by client. $3 = client
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// name.
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extern const char* kMsgHelloBack;
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//
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// command codes
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//
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// no operation; secondary -> primary
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extern const char* kMsgCNoop;
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// close connection; primary -> secondary
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extern const char* kMsgCClose;
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// enter screen: primary -> secondary
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// entering screen at screen position $1 = x, $2 = y. x,y are
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// absolute screen coordinates. $3 = sequence number, which is
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// used to order messages between screens. the secondary screen
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// must return this number with some messages. $4 = modifier key
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// mask. this will have bits set for each toggle modifier key
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// that is activated on entry to the screen. the secondary screen
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// should adjust its toggle modifiers to reflect that state.
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extern const char* kMsgCEnter;
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// leave screen: primary -> secondary
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// leaving screen. the secondary screen should send clipboard
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// data in response to this message for those clipboards that
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// it has grabbed (i.e. has sent a kMsgCClipboard for and has
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// not received a kMsgCClipboard for with a greater sequence
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// number) and that were grabbed or have changed since the
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// last leave.
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extern const char* kMsgCLeave;
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// grab clipboard: primary <-> secondary
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// sent by screen when some other app on that screen grabs a
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// clipboard. $1 = the clipboard identifier, $2 = sequence number.
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// secondary screens must use the sequence number passed in the
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// most recent kMsgCEnter. the primary always sends 0.
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extern const char* kMsgCClipboard;
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// screensaver change: primary -> secondary
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// screensaver on primary has started ($1 == 1) or closed ($1 == 0)
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extern const char* kMsgCScreenSaver;
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// reset options: primary -> secondary
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// client should reset all of its options to their defaults.
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extern const char* kMsgCResetOptions;
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// resolution change acknowledgment: primary -> secondary
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// sent by primary in response to a secondary screen's kMsgDInfo.
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// this is sent for every kMsgDInfo, whether or not the primary
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// had sent a kMsgQInfo.
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extern const char* kMsgCInfoAck;
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// keep connection alive: primary <-> secondary
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// sent by the server periodically to verify that connections are still
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// up and running. clients must reply in kind on receipt. if the server
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// gets an error sending the message or does not receive a reply within
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// a reasonable time then the server disconnects the client. if the
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// client doesn't receive these (or any message) periodically then it
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// should disconnect from the server. the appropriate interval is
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// defined by an option.
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extern const char* kMsgCKeepAlive;
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//
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// data codes
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//
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// key pressed: primary -> secondary
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// $1 = KeyID, $2 = KeyModifierMask, $3 = KeyButton
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// the KeyButton identifies the physical key on the primary used to
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// generate this key. the secondary should note the KeyButton along
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// with the physical key it uses to generate the key press. on
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// release, the secondary can then use the primary's KeyButton to
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// find its corresponding physical key and release it. this is
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// necessary because the KeyID on release may not be the KeyID of
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// the press. this can happen with combining (dead) keys or if
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// the keyboard layouts are not identical and the user releases
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// a modifier key before releasing the modified key.
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extern const char* kMsgDKeyDown;
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// key pressed 1.0: same as above but without KeyButton
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extern const char* kMsgDKeyDown1_0;
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// key auto-repeat: primary -> secondary
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// $1 = KeyID, $2 = KeyModifierMask, $3 = number of repeats, $4 = KeyButton
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extern const char* kMsgDKeyRepeat;
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// key auto-repeat 1.0: same as above but without KeyButton
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extern const char* kMsgDKeyRepeat1_0;
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// key released: primary -> secondary
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// $1 = KeyID, $2 = KeyModifierMask, $3 = KeyButton
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extern const char* kMsgDKeyUp;
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// key released 1.0: same as above but without KeyButton
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extern const char* kMsgDKeyUp1_0;
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// mouse button pressed: primary -> secondary
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// $1 = ButtonID
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extern const char* kMsgDMouseDown;
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// mouse button released: primary -> secondary
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// $1 = ButtonID
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extern const char* kMsgDMouseUp;
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// mouse moved: primary -> secondary
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// $1 = x, $2 = y. x,y are absolute screen coordinates.
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extern const char* kMsgDMouseMove;
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// relative mouse move: primary -> secondary
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// $1 = dx, $2 = dy. dx,dy are motion deltas.
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extern const char* kMsgDMouseRelMove;
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// mouse scroll: primary -> secondary
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// $1 = xDelta, $2 = yDelta. the delta should be +120 for one tick forward
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// (away from the user) or right and -120 for one tick backward (toward
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// the user) or left.
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extern const char* kMsgDMouseWheel;
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// mouse vertical scroll: primary -> secondary
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// like as kMsgDMouseWheel except only sends $1 = yDelta.
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extern const char* kMsgDMouseWheel1_0;
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// clipboard data: primary <-> secondary
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// $2 = sequence number, $3 = clipboard data. the sequence number
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// is 0 when sent by the primary. secondary screens should use the
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// sequence number from the most recent kMsgCEnter. $1 = clipboard
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// identifier.
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extern const char* kMsgDClipboard;
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// client data: secondary -> primary
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// $1 = coordinate of leftmost pixel on secondary screen,
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// $2 = coordinate of topmost pixel on secondary screen,
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// $3 = width of secondary screen in pixels,
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// $4 = height of secondary screen in pixels,
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// $5 = size of warp zone, (obsolete)
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// $6, $7 = the x,y position of the mouse on the secondary screen.
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//
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// the secondary screen must send this message in response to the
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// kMsgQInfo message. it must also send this message when the
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// screen's resolution changes. in this case, the secondary screen
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// should ignore any kMsgDMouseMove messages until it receives a
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// kMsgCInfoAck in order to prevent attempts to move the mouse off
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// the new screen area.
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extern const char* kMsgDInfo;
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// set options: primary -> secondary
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// client should set the given option/value pairs. $1 = option/value
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// pairs.
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extern const char* kMsgDSetOptions;
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//
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// query codes
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//
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// query screen info: primary -> secondary
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// client should reply with a kMsgDInfo.
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extern const char* kMsgQInfo;
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//
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// error codes
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//
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// incompatible versions: primary -> secondary
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// $1 = major version of primary, $2 = minor version of primary.
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extern const char* kMsgEIncompatible;
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// name provided when connecting is already in use: primary -> secondary
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extern const char* kMsgEBusy;
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// unknown client: primary -> secondary
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// name provided when connecting is not in primary's screen
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// configuration map.
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extern const char* kMsgEUnknown;
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// protocol violation: primary -> secondary
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// primary should disconnect after sending this message.
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extern const char* kMsgEBad;
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//
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// structures
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//
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//! Screen information
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/*!
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This class contains information about a screen.
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*/
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class CClientInfo {
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public:
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//! Screen position
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/*!
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The position of the upper-left corner of the screen. This is
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typically 0,0.
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*/
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SInt32 m_x, m_y;
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//! Screen size
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/*!
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The size of the screen in pixels.
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*/
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SInt32 m_w, m_h;
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//! Obsolete (jump zone size)
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SInt32 obsolete1;
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//! Mouse position
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/*!
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The current location of the mouse cursor.
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*/
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SInt32 m_mx, m_my;
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};
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#endif
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