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/* -*-c-*- */
/* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
** fvwmlib_get_target_window and fvwmlib_keyboard_shortcuts - handle window
** selection from modules and fvwm.
*/
#include "config.h"
#include <stdio.h>
#include <signal.h>
#include <ctype.h>
#include <unistd.h>
#include <X11/keysym.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/cursorfont.h>
#include "fvwmlib.h"
#include "Grab.h"
#include "Target.h"
void fvwmlib_keyboard_shortcuts(
Display *dpy, int screen, XEvent *Event, int x_move_size,
int y_move_size, int *x_defect, int *y_defect, int ReturnEvent)
{
int x;
int y;
int x_root;
int y_root;
int x_move;
int y_move;
KeySym keysym;
Window JunkRoot;
unsigned int JunkMask;
if (y_move_size < DEFAULT_KDB_SHORTCUT_MOVE_DISTANCE)
{
y_move_size = DEFAULT_KDB_SHORTCUT_MOVE_DISTANCE;
}
if (x_move_size < DEFAULT_KDB_SHORTCUT_MOVE_DISTANCE)
{
x_move_size = DEFAULT_KDB_SHORTCUT_MOVE_DISTANCE;
}
if (Event->xkey.state & ControlMask)
{
x_move_size = y_move_size = KDB_SHORTCUT_MOVE_DISTANCE_SMALL;
}
if (Event->xkey.state & ShiftMask)
{
x_move_size = y_move_size = KDB_SHORTCUT_MOVE_DISTANCE_BIG;
}
keysym = XLookupKeysym(&Event->xkey,0);
x_move = 0;
y_move = 0;
switch(keysym)
{
case XK_Up:
case XK_KP_8:
case XK_k:
case XK_p:
y_move = -y_move_size;
break;
case XK_Down:
case XK_KP_2:
case XK_n:
case XK_j:
y_move = y_move_size;
break;
case XK_Left:
case XK_KP_4:
case XK_b:
case XK_h:
x_move = -x_move_size;
break;
case XK_Right:
case XK_KP_6:
case XK_f:
case XK_l:
x_move = x_move_size;
break;
case XK_KP_1:
x_move = -x_move_size;
y_move = y_move_size;
break;
case XK_KP_3:
x_move = x_move_size;
y_move = y_move_size;
break;
case XK_KP_7:
x_move = -x_move_size;
y_move = -y_move_size;
break;
case XK_KP_9:
x_move = x_move_size;
y_move = -y_move_size;
break;
case XK_Return:
case XK_KP_Enter:
case XK_space:
/* beat up the event */
Event->type = ReturnEvent;
break;
case XK_Escape:
/* simple code to bag out of move - CKH */
/* return keypress event instead */
Event->type = KeyPress;
Event->xkey.keycode = XKeysymToKeycode(
Event->xkey.display,keysym);
break;
default:
break;
}
if (x_move || y_move)
{
int x_def_new = 0;
int y_def_new = 0;
if (FQueryPointer(
dpy, RootWindow(dpy, screen), &JunkRoot,
&Event->xany.window, &x_root, &y_root, &x, &y,
&JunkMask) == False)
{
/* pointer is on a different screen - do nothing */
return;
}
if (x + x_move < 0)
{
x_def_new = x + x_move;
x_move = -x;
}
else if (x + x_move >= DisplayWidth(dpy, DefaultScreen(dpy)))
{
x_def_new = x + x_move - DisplayWidth(
dpy, DefaultScreen(dpy));
x_move = DisplayWidth(dpy, DefaultScreen(dpy)) - x - 1;
}
if (y + y_move < 0)
{
y_def_new = y + y_move;
y_move = -y;
}
else if (y + y_move >= DisplayHeight(dpy, DefaultScreen(dpy)))
{
y_def_new = y + y_move - DisplayHeight(
dpy, DefaultScreen(dpy));
y_move = DisplayHeight(
dpy, DefaultScreen(dpy)) - y - 1;
}
if (x_defect)
{
int diff = 0;
*x_defect += x_def_new;
if (*x_defect > 0 && x_move < 0)
{
diff = min(*x_defect, -x_move);
}
else if (*x_defect < 0 && x_move > 0)
{
diff = max(*x_defect, -x_move);
}
*x_defect -= diff;
x_move += diff;
}
if (y_defect)
{
int diff = 0;
*y_defect += y_def_new;
if (*y_defect > 0 && y_move < 0)
{
diff = min(*y_defect, -y_move);
}
else if (*y_defect < 0 && y_move > 0)
{
diff = max(*y_defect, -y_move);
}
*y_defect -= diff;
y_move += diff;
}
if (x_move || y_move)
{
FWarpPointer(
dpy, None, RootWindow(dpy, screen), 0, 0, 0, 0,
x_root + x_move, y_root + y_move);
}
/* beat up the event */
Event->type = MotionNotify;
Event->xkey.x += x_move;
Event->xkey.y += y_move;
Event->xkey.x_root += x_move;
Event->xkey.y_root += y_move;
}
}
void fvwmlib_get_target_window(
Display *dpy, int screen, char *MyName, Window *app_win,
Bool return_subwindow)
{
XEvent eventp;
int val = -10,trials;
Bool finished = False;
Bool canceled = False;
Window Root = RootWindow(dpy, screen);
int is_key_pressed = 0;
int is_button_pressed = 0;
KeySym keysym;
trials = 0;
while((trials <10)&&(val != GrabSuccess))
{
val=XGrabPointer(dpy, Root, True,
ButtonPressMask | ButtonReleaseMask,
GrabModeAsync, GrabModeAsync, Root,
XCreateFontCursor(dpy,XC_crosshair),
CurrentTime);
switch (val)
{
case GrabInvalidTime:
case GrabNotViewable:
/* give up */
trials += 100000;
break;
case GrabSuccess:
break;
case AlreadyGrabbed:
case GrabFrozen:
default:
usleep(10000);
trials++;
break;
}
}
if(val != GrabSuccess)
{
fprintf(stderr,"%s: Couldn't grab the cursor!\n",MyName);
exit(1);
}
MyXGrabKeyboard(dpy);
while (!finished && !canceled)
{
FMaskEvent(dpy, ButtonPressMask | ButtonReleaseMask |
KeyPressMask | KeyReleaseMask, &eventp);
switch (eventp.type)
{
case KeyPress:
is_key_pressed++;
break;
case KeyRelease:
keysym = XLookupKeysym(&eventp.xkey,0);
if( !is_key_pressed ) break;
switch (keysym)
{
case XK_Escape:
canceled = True;
break;
case XK_space:
case XK_Return:
case XK_KP_Enter:
finished = True;
break;
default:
fvwmlib_keyboard_shortcuts(
dpy, screen, &eventp, 0, 0, NULL,
NULL, 0);
break;
}
break;
case ButtonPress:
is_button_pressed++;
break;
case ButtonRelease:
if( is_button_pressed ) finished = True;
break;
}
}
MyXUngrabKeyboard(dpy);
XUngrabPointer(dpy, CurrentTime);
XSync(dpy,0);
if (canceled)
{
*app_win = None;
return;
}
*app_win = eventp.xany.window;
if(return_subwindow && eventp.xbutton.subwindow != None)
*app_win = eventp.xbutton.subwindow;
return;
}
Window fvwmlib_client_window(Display *dpy, Window input)
{
Atom _XA_WM_STATE;
unsigned int nchildren;
Window root, parent, *children,target;
unsigned long nitems, bytesafter;
unsigned char *prop;
Atom atype;
int aformat;
int i;
_XA_WM_STATE = XInternAtom (dpy, "WM_STATE", False);
if (
XGetWindowProperty(
dpy, input, _XA_WM_STATE , 0L, 3L , False,
_XA_WM_STATE, &atype, &aformat, &nitems, &bytesafter,
&prop) == Success)
{
if(prop != NULL)
{
XFree(prop);
return input;
}
}
if (!XQueryTree(dpy, input, &root, &parent, &children, &nchildren))
return None;
for (i = 0; i < nchildren; i++)
{
target = fvwmlib_client_window(dpy, children[i]);
if(target != None)
{
XFree((char *)children);
return target;
}
}
XFree((char *)children);
return None;
}
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