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/*
 * extrawm.c
 * Compiz extra WM actions plugins
 * Copyright: (C) 2007 Danny Baumann <maniac@beryl-project.org>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#include <stdio.h>
#include <stdlib.h>

#include <compiz.h>
#include "extrawm_options.h"


static Bool
activateWin (CompDisplay * d,
             CompAction * action,
             CompActionState state, 
	     CompOption * option, 
	     int nOption)
{
        CompWindow *w;
        Window xid;

        xid = getIntOptionNamed(option, nOption, "window", 0);

        w = findWindowAtDisplay(d, xid);
        if (w)
                sendWindowActivationRequest(w->screen, w->id);

        return TRUE;
}

static void 
fullscreenWindow (CompWindow * w, 
		  int state)
{
        unsigned int newState = w->state;
	
	if (w->attrib.override_redirect)
		return;

	/* It would be a bug, to put a shaded window to fullscreen. */
	if (w->shaded)
		return;

	state = constrainWindowState(state, w->actions);
	state &= CompWindowStateFullscreenMask;

	if (state == (w->state & CompWindowStateFullscreenMask))
		return;
       
	newState &= ~CompWindowStateFullscreenMask;
	newState |= state;

	changeWindowState(w, newState);
	recalcWindowType(w);
        recalcWindowActions(w);
	updateWindowAttributes(w, CompStackingUpdateModeNormal);
}

static Bool
toggleFullscreen (CompDisplay * d,
		  CompAction * action,
                  CompActionState state, 
		  CompOption * option, 
		  int nOption)
{
        CompWindow *w;
        Window xid;

        xid = getIntOptionNamed(option, nOption, "window", 0);

        w = findTopLevelWindowAtDisplay(d, xid);
        if (w && (w->actions & CompWindowActionFullscreenMask))
                fullscreenWindow(w, w->state ^ CompWindowStateFullscreenMask);

        return TRUE;
}

static Bool
toggleRedirect (CompDisplay * d,
		CompAction * action,
                CompActionState state, 
		CompOption * option, 
		int nOption)
{
        CompWindow *w;
        Window xid;

        xid = getIntOptionNamed(option, nOption, "window", 0);

        w = findTopLevelWindowAtDisplay(d, xid);
        if (w) 
	{
                if (w->redirected)
                        unredirectWindow(w);
                else
                        redirectWindow(w);
        }

        return TRUE;
}

static Bool
toggleAlwaysOnTop (CompDisplay * d,
	           CompAction * action,
	           CompActionState state, 
		   CompOption * option, 
		   int nOption)
{
        CompWindow *w;
        Window xid;

        xid = getIntOptionNamed(option, nOption, "window", 0);

        w = findTopLevelWindowAtDisplay(d, xid);
        if (w)
        {
		unsigned int newState;
                newState = w->state ^ CompWindowStateAboveMask;
		changeWindowState (w, newState);
		updateWindowAttributes (w, CompStackingUpdateModeNormal);
        }

        return TRUE;
}

static Bool
toggleSticky (CompDisplay * d,
              CompAction * action,
              CompActionState state, 
	      CompOption * option, 
	      int nOption)
{
        CompWindow *w;
        Window xid;

        xid = getIntOptionNamed(option, nOption, "window", 0);

        w = findTopLevelWindowAtDisplay(d, xid);
        if (w && (w->actions & CompWindowActionStickMask))
        {
                unsigned int newState;
		newState = w->state ^ CompWindowStateStickyMask;
                changeWindowState(w, newState);
        }

        return TRUE;
}

static Bool 
extraWMInit(CompPlugin * p)
{
	return TRUE;
}

static void 
extraWMFini(CompPlugin * p)
{
}

static Bool
extraWMInitDisplay (CompPlugin *p,
		    CompDisplay *d)
{
	extrawmSetToggleRedirectInitiate (d, toggleRedirect);
	extrawmSetToggleAlwaysOnTopInitiate (d, toggleAlwaysOnTop);
	extrawmSetToggleStickyInitiate (d, toggleSticky);
	extrawmSetToggleFullscreenInitiate (d, toggleFullscreen);
	extrawmSetActivateInitiate (d, activateWin);

	return TRUE;
}

static int extraWMGetVersion (CompPlugin * p, 
			      int version)
{
	return ABIVERSION;
}

CompPluginVTable extraWMVTable = {
	"extrawm",
	extraWMGetVersion,
	0,
	extraWMInit,
	extraWMFini,
	extraWMInitDisplay,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0,
	0
};

CompPluginVTable *getCompPluginInfo(void)
{
	return &extraWMVTable;
}