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122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
#ifndef CXWINDOWSSCREENSAVER_H
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#define CXWINDOWSSCREENSAVER_H
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#include "IScreenSaver.h"
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#include "stdmap.h"
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#if defined(X_DISPLAY_MISSING)
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# error X11 is required to build synergy
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#else
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# include <X11/Xlib.h>
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#endif
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class IJob;
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class CXWindowsScreen;
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class CXWindowsScreenSaver : public IScreenSaver {
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public:
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// note -- the caller must ensure that Display* passed to c'tor isn't
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// being used in another call to Xlib when calling any method on this
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// object (including during the c'tor and d'tor).
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CXWindowsScreenSaver(CXWindowsScreen*, Display*);
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virtual ~CXWindowsScreenSaver();
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// process X event. returns true if the event was handled.
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bool processEvent(XEvent*);
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// tells this object to send a ClientMessage to the given window
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// when the screen saver activates or deactivates. only one
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// window can be notified. the message type is the "SCREENSAVER"
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// atom, the format is 32, and the data.l[0] member is non-zero
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// if activated, zero if deactivated. pass in None to disable
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// notification;
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void setNotify(Window);
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// IScreenSaver overrides
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virtual void enable();
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virtual void disable();
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virtual void activate();
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virtual void deactivate();
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virtual bool isActive() const;
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private:
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// send a notification
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void sendNotify(bool activated);
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// find and set the running xscreensaver's window. returns true iff
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// found.
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bool findXScreenSaver();
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// set the xscreensaver's window, updating the activation state flag
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void setXScreenSaver(Window);
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// returns true if the window appears to be the xscreensaver window
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bool isXScreenSaver(Window) const;
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// set xscreensaver's activation state flag. sends notification
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// if the state has changed.
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void setXScreenSaverActive(bool activated);
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// send a command to xscreensaver
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void sendXScreenSaverCommand(Atom, long = 0, long = 0);
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// watch all windows that could potentially be the xscreensaver for
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// the events that will confirm it.
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void watchForXScreenSaver();
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// stop watching all watched windows
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void clearWatchForXScreenSaver();
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// add window to the watch list
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void addWatchXScreenSaver(Window window);
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// called periodically to prevent the screen saver from starting
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void disableCallback(void*);
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private:
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typedef std::map<Window, long> CWatchList;
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// the event loop object
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CXWindowsScreen* m_screen;
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// the X display
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Display* m_display;
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// old event mask on root window
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long m_rootEventMask;
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// window to notify on screen saver activation/deactivation
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Window m_notify;
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// xscreensaver's window
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Window m_xscreensaver;
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// xscreensaver activation state
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bool m_xscreensaverActive;
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// dummy window to receive xscreensaver repsonses
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Window m_xscreensaverSink;
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// potential xscreensaver windows being watched
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CWatchList m_watchWindows;
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// atoms used to communicate with xscreensaver's window
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Atom m_atomScreenSaver;
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Atom m_atomScreenSaverVersion;
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Atom m_atomScreenSaverActivate;
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Atom m_atomScreenSaverDeactivate;
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// built-in screen saver settings
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int m_timeout;
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int m_interval;
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int m_preferBlanking;
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int m_allowExposures;
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// true iff the disabled job timer is installed
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bool m_disabled;
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// the job used to invoke disableCallback
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IJob* m_disableJob;
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};
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#endif
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