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Initial commit of the synergy trunk sources from sf.net
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Sorin Sbarnea
296
lib/platform/CMSWindowsDesks.h
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296
lib/platform/CMSWindowsDesks.h
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/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2004 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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#ifndef CMSWINDOWSDESKS_H
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#define CMSWINDOWSDESKS_H
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#include "CSynergyHook.h"
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#include "KeyTypes.h"
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#include "MouseTypes.h"
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#include "OptionTypes.h"
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#include "CCondVar.h"
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#include "CMutex.h"
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#include "CString.h"
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#include "stdmap.h"
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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class CEvent;
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class CEventQueueTimer;
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class CThread;
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class IJob;
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class IScreenSaver;
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//! Microsoft Windows desk handling
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/*!
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Desks in Microsoft Windows are only remotely like desktops on X11
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systems. A desk is another virtual surface for windows but desks
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impose serious restrictions: a thread can interact with only one
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desk at a time, you can't switch desks if the thread has any hooks
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installed or owns any windows, windows cannot exist on multiple
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desks at once, etc. Basically, they're useless except for running
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the login window or the screensaver, which is what they're used
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for. Synergy must deal with them mainly because of the login
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window and screensaver but users can create their own desks and
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synergy should work on those too.
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This class encapsulates all the desk nastiness. Clients of this
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object don't have to know anything about desks.
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*/
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class CMSWindowsDesks {
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public:
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//! Constructor
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/*!
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\p isPrimary is true iff the desk is for a primary screen.
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\p screensaver points to a screensaver object and it's used
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only to check if the screensaver is active. The \p updateKeys
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job is adopted and is called when the key state should be
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updated in a thread attached to the current desk.
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\p hookLibrary must be a handle to the hook library.
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*/
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CMSWindowsDesks(bool isPrimary, HINSTANCE hookLibrary,
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const IScreenSaver* screensaver, IJob* updateKeys);
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~CMSWindowsDesks();
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//! @name manipulators
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//@{
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//! Enable desk tracking
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/*!
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Enables desk tracking. While enabled, this object checks to see
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if the desk has changed and ensures that the hooks are installed
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on the new desk. \c setShape should be called at least once
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before calling \c enable.
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*/
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void enable();
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//! Disable desk tracking
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/*!
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Disables desk tracking. \sa enable.
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*/
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void disable();
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//! Notify of entering a desk
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/*!
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Prepares a desk for when the cursor enters it.
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*/
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void enter();
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//! Notify of leaving a desk
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/*!
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Prepares a desk for when the cursor leaves it.
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*/
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void leave(HKL keyLayout);
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//! Notify of options changes
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/*!
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Resets all options to their default values.
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*/
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void resetOptions();
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//! Notify of options changes
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/*!
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Set options to given values. Ignores unknown options and doesn't
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modify options that aren't given in \c options.
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*/
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void setOptions(const COptionsList& options);
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//! Update the key state
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/*!
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Causes the key state to get updated to reflect the physical keyboard
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state and current keyboard mapping.
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*/
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void updateKeys();
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//! Tell desk about new size
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/*!
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This tells the desks that the display size has changed.
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*/
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void setShape(SInt32 x, SInt32 y,
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SInt32 width, SInt32 height,
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SInt32 xCenter, SInt32 yCenter, bool isMultimon);
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//! Install/uninstall screensaver hooks
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/*!
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If \p install is true then the screensaver hooks are installed and,
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if desk tracking is enabled, updated whenever the desk changes. If
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\p install is false then the screensaver hooks are uninstalled.
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*/
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void installScreensaverHooks(bool install);
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//! Start ignoring user input
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/*!
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Starts ignoring user input so we don't pick up our own synthesized events.
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*/
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void fakeInputBegin();
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//! Stop ignoring user input
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/*!
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Undoes whatever \c fakeInputBegin() did.
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*/
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void fakeInputEnd();
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//@}
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//! @name accessors
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//@{
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//! Get cursor position
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/*!
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Return the current position of the cursor in \c x and \c y.
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*/
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void getCursorPos(SInt32& x, SInt32& y) const;
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//! Fake key press/release
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/*!
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Synthesize a press or release of key \c button.
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*/
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void fakeKeyEvent(KeyButton button, UINT virtualKey,
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bool press, bool isAutoRepeat) const;
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//! Fake mouse press/release
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/*!
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Synthesize a press or release of mouse button \c id.
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*/
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void fakeMouseButton(ButtonID id, bool press) const;
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//! Fake mouse move
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/*!
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Synthesize a mouse move to the absolute coordinates \c x,y.
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*/
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void fakeMouseMove(SInt32 x, SInt32 y) const;
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//! Fake mouse move
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/*!
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Synthesize a mouse move to the relative coordinates \c dx,dy.
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*/
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void fakeMouseRelativeMove(SInt32 dx, SInt32 dy) const;
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//! Fake mouse wheel
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/*!
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Synthesize a mouse wheel event of amount \c delta in direction \c axis.
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*/
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void fakeMouseWheel(SInt32 xDelta, SInt32 yDelta) const;
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//@}
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private:
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class CDesk {
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public:
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CString m_name;
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CThread* m_thread;
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DWORD m_threadID;
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DWORD m_targetID;
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HDESK m_desk;
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HWND m_window;
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HWND m_foregroundWindow;
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bool m_lowLevel;
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};
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typedef std::map<CString, CDesk*> CDesks;
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// initialization and shutdown operations
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void queryHookLibrary(HINSTANCE hookLibrary);
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HCURSOR createBlankCursor() const;
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void destroyCursor(HCURSOR cursor) const;
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ATOM createDeskWindowClass(bool isPrimary) const;
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void destroyClass(ATOM windowClass) const;
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HWND createWindow(ATOM windowClass, const char* name) const;
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void destroyWindow(HWND) const;
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// message handlers
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void deskMouseMove(SInt32 x, SInt32 y) const;
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void deskMouseRelativeMove(SInt32 dx, SInt32 dy) const;
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void deskEnter(CDesk* desk);
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void deskLeave(CDesk* desk, HKL keyLayout);
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void deskThread(void* vdesk);
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// desk switch checking and handling
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CDesk* addDesk(const CString& name, HDESK hdesk);
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void removeDesks();
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void checkDesk();
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bool isDeskAccessible(const CDesk* desk) const;
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void handleCheckDesk(const CEvent& event, void*);
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// communication with desk threads
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void waitForDesk() const;
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void sendMessage(UINT, WPARAM, LPARAM) const;
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// work around for messed up keyboard events from low-level hooks
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HWND getForegroundWindow() const;
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// desk API wrappers
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HDESK openInputDesktop();
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void closeDesktop(HDESK);
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CString getDesktopName(HDESK);
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// our desk window procs
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static LRESULT CALLBACK primaryDeskProc(HWND, UINT, WPARAM, LPARAM);
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static LRESULT CALLBACK secondaryDeskProc(HWND, UINT, WPARAM, LPARAM);
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private:
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// true if screen is being used as a primary screen, false otherwise
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bool m_isPrimary;
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// true if windows 95/98/me
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bool m_is95Family;
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// true if windows 98/2k or higher (i.e. not 95/nt)
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bool m_isModernFamily;
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// true if mouse has entered the screen
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bool m_isOnScreen;
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// our resources
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ATOM m_deskClass;
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HCURSOR m_cursor;
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// screen shape stuff
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SInt32 m_x, m_y;
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SInt32 m_w, m_h;
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SInt32 m_xCenter, m_yCenter;
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// true if system appears to have multiple monitors
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bool m_multimon;
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// the timer used to check for desktop switching
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CEventQueueTimer* m_timer;
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// screen saver stuff
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DWORD m_threadID;
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const IScreenSaver* m_screensaver;
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bool m_screensaverNotify;
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// the current desk and it's name
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CDesk* m_activeDesk;
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CString m_activeDeskName;
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// one desk per desktop and a cond var to communicate with it
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CMutex m_mutex;
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CCondVar<bool> m_deskReady;
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CDesks m_desks;
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// hook library stuff
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InstallFunc m_install;
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UninstallFunc m_uninstall;
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InstallScreenSaverFunc m_installScreensaver;
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UninstallScreenSaverFunc m_uninstallScreensaver;
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// keyboard stuff
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IJob* m_updateKeys;
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HKL m_keyLayout;
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// options
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bool m_leaveForegroundOption;
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};
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#endif
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