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https://github.com/kasmtech/KasmVNC.git
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25b8e64adb
This change adds support for the VMware Mouse Position pseudo-encoding[1], which is used to notify VNC clients when X11 clients call `XWarpPointer()`[2]. This function is called by SDL (and other similar libraries) when they detect that the server does not support native relative motion, like some RFB clients. With this, RFB clients can choose to adjust the local cursor position under certain circumstances to match what the server has set. For instance, if pointer lock has been enabled on the client's machine and the cursor is not being drawn locally, the local position of the cursor is irrelevant, so the RFB client can use what the server sends as the canonical absolute position of the cursor. This ultimately enables the possibility of games (especially FPS games) to behave how users expect (if the clients implement the corresponding change). Part of: #619 1: https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#vmware-cursor-position-pseudo-encoding 2: https://tronche.com/gui/x/xlib/input/XWarpPointer.html 3: https://hg.libsdl.org/SDL/file/28e3b60e2131/src/events/SDL_mouse.c#l804
133 lines
4.5 KiB
C++
133 lines
4.5 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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* Copyright 2009-2015 Pierre Ossman for Cendio AB
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software 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 software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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//
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// XserverDesktop.h
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//
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#ifndef __XSERVERDESKTOP_H__
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#define __XSERVERDESKTOP_H__
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <map>
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#include <stdint.h>
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#include <rfb/SDesktop.h>
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#include <rfb/PixelBuffer.h>
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#include <rfb/Configuration.h>
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#include <rfb/VNCServerST.h>
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#include <unixcommon.h>
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#include "Input.h"
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namespace rfb {
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class VNCServerST;
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}
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namespace network { class SocketListener; class Socket; class SocketServer; }
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class XserverDesktop : public rfb::SDesktop, public rfb::FullFramePixelBuffer,
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public rfb::VNCServerST::QueryConnectionHandler,
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public rfb::Timer::Callback {
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public:
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XserverDesktop(int screenIndex,
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std::list<network::SocketListener*> listeners_,
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const char* name, const rfb::PixelFormat &pf,
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int width, int height, void* fbptr, int stride);
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virtual ~XserverDesktop();
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// methods called from X server code
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void blockUpdates();
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void unblockUpdates();
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void setFramebuffer(int w, int h, void* fbptr, int stride);
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void refreshScreenLayout();
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void bell();
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void setLEDState(unsigned int state);
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void serverCutText(const char* str, int len);
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void setDesktopName(const char* name);
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void setCursor(int width, int height, int hotX, int hotY,
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const unsigned char *rgbaData);
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void setCursorPos(int x, int y, bool warped);
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void add_changed(const rfb::Region ®ion);
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void add_copied(const rfb::Region &dest, const rfb::Point &delta);
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void handleSocketEvent(int fd, bool read, bool write);
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void blockHandler(int* timeout);
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void addClient(network::Socket* sock, bool reverse);
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void disconnectClients();
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// QueryConnect methods called from X server code
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// getQueryConnect()
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// Returns information about the currently waiting query
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// (or an id of 0 if there is none waiting)
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void getQueryConnect(uint32_t* opaqueId, const char** address,
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const char** username, int *timeout);
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// approveConnection()
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// Used by X server code to supply the result of a query.
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void approveConnection(uint32_t opaqueId, bool accept,
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const char* rejectMsg=0);
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// rfb::SDesktop callbacks
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virtual void pointerEvent(const rfb::Point& pos, int buttonMask,
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const bool skipClick, const bool skipRelease);
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virtual void keyEvent(rdr::U32 keysym, rdr::U32 keycode, bool down);
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virtual void clientCutText(const char* str, int len);
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virtual unsigned int setScreenLayout(int fb_width, int fb_height,
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const rfb::ScreenSet& layout);
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// rfb::PixelBuffer callbacks
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virtual void grabRegion(const rfb::Region& r);
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// rfb::VNCServerST::QueryConnectionHandler callback
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virtual rfb::VNCServerST::queryResult queryConnection(network::Socket* sock,
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const char* userName,
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char** reason);
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protected:
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bool handleListenerEvent(int fd,
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std::list<network::SocketListener*>* sockets,
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network::SocketServer* sockserv);
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bool handleSocketEvent(int fd,
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network::SocketServer* sockserv,
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bool read, bool write);
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virtual bool handleTimeout(rfb::Timer* t);
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private:
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int screenIndex;
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rfb::VNCServerST* server;
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std::list<network::SocketListener*> listeners;
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bool directFbptr;
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uint32_t queryConnectId;
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network::Socket* queryConnectSocket;
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rfb::CharArray queryConnectAddress;
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rfb::CharArray queryConnectUsername;
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rfb::Timer queryConnectTimer;
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OutputIdMap outputIdMap;
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rfb::Point oldCursorPos;
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};
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#endif
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