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/*
* Copyright © 2008 Dennis Kasprzyk
* Copyright © 2007 Novell, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Dennis Kasprzyk not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* Dennis Kasprzyk makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* DENNIS KASPRZYK DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL DENNIS KASPRZYK BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Dennis Kasprzyk <onestone@compiz-fusion.org>
* David Reveman <davidr@novell.com>
* Sam Spilsbury <smspillaz@gmail.com>
*/
#include <core/screen.h>
#include "privatescreen.h"
#include "privatewindow.h"
const unsigned int ModifierHandler::virtualModMask[7] = {
CompAltMask, CompMetaMask, CompSuperMask, CompHyperMask,
CompModeSwitchMask, CompNumLockMask, CompScrollLockMask
};
const int ModifierHandler::maskTable[8] = {
ShiftMask, LockMask, ControlMask, Mod1Mask,
Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
};
unsigned int
ModifierHandler::ignoredModMask ()
{
return mIgnoredModMask;
}
const XModifierKeymap *
ModifierHandler::modMap ()
{
return mModMap;
}
void
ModifierHandler::updateModifierMappings ()
{
unsigned int modMask[CompModNum];
int i, minKeycode, maxKeycode, keysymsPerKeycode = 0;
KeySym* key;
for (i = 0; i < CompModNum; i++)
modMask[i] = 0;
XDisplayKeycodes (screen->dpy (), &minKeycode, &maxKeycode);
key = XGetKeyboardMapping (screen->dpy (),
minKeycode, (maxKeycode - minKeycode + 1),
&keysymsPerKeycode);
if (mModMap)
XFreeModifiermap (mModMap);
mModMap = XGetModifierMapping (screen->dpy ());
if (mModMap && mModMap->max_keypermod > 0)
{
KeySym keysym;
int index, size, mask;
size = maskTableSize * mModMap->max_keypermod;
for (i = 0; i < size; i++)
{
if (!mModMap->modifiermap[i])
continue;
index = 0;
do
{
keysym = XKeycodeToKeysym (screen->dpy (),
mModMap->modifiermap[i],
index++);
} while (!keysym && index < keysymsPerKeycode);
if (keysym)
{
mask = maskTable[i / mModMap->max_keypermod];
if (keysym == XK_Alt_L ||
keysym == XK_Alt_R)
{
modMask[CompModAlt] |= mask;
}
else if (keysym == XK_Meta_L ||
keysym == XK_Meta_R)
{
modMask[CompModMeta] |= mask;
}
else if (keysym == XK_Super_L ||
keysym == XK_Super_R)
{
modMask[CompModSuper] |= mask;
}
else if (keysym == XK_Hyper_L ||
keysym == XK_Hyper_R)
{
modMask[CompModHyper] |= mask;
}
else if (keysym == XK_Mode_switch)
{
modMask[CompModModeSwitch] |= mask;
}
else if (keysym == XK_Scroll_Lock)
{
modMask[CompModScrollLock] |= mask;
}
else if (keysym == XK_Num_Lock)
{
modMask[CompModNumLock] |= mask;
}
}
}
for (i = 0; i < CompModNum; i++)
{
if (!modMask[i])
modMask[i] = CompNoMask;
}
if (memcmp (modMask, mModMask, sizeof (modMask)))
{
memcpy (mModMask, modMask, sizeof (modMask));
mIgnoredModMask = LockMask |
(modMask[CompModNumLock] & ~CompNoMask) |
(modMask[CompModScrollLock] & ~CompNoMask);
screen->priv->updatePassiveKeyGrabs ();
foreach (CompWindow *w, screen->windows ())
w->priv->updatePassiveButtonGrabs ();
}
}
if (key)
XFree (key);
}
unsigned int
ModifierHandler::virtualToRealModMask (unsigned int modMask)
{
int i;
for (i = 0; i < CompModNum; i++)
{
if (modMask & virtualModMask[i])
{
modMask &= ~virtualModMask[i];
modMask |= mModMask[i];
}
}
return modMask;
}
unsigned int
ModifierHandler::keycodeToModifiers (int keycode)
{
unsigned int mods = 0;
int mod, k;
for (mod = 0; mod < maskTableSize; mod++)
{
for (k = 0; k < mModMap->max_keypermod; k++)
{
if (mModMap->modifiermap[mod *
mModMap->max_keypermod + k] == keycode)
mods |= maskTable[mod];
}
}
return mods;
}
ModifierHandler::ModifierHandler () :
mIgnoredModMask (LockMask),
mModMap (0)
{
for (int i = 0; i < ModNum; i++)
mModMask[i] = NoMask;
}
ModifierHandler::~ModifierHandler ()
{
if (mModMap)
XFreeModifiermap (mModMap);
mModMap = NULL;
}
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