260 lines
7.4 KiB
C++
260 lines
7.4 KiB
C++
// XDisplay.cc for Openbox
|
|
// Copyright (c) 2002 - 2002 Ben Janens (ben at orodu.net)
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the "Software"),
|
|
// to deal in the Software without restriction, including without limitation
|
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
// and/or sell copies of the Software, and to permit persons to whom the
|
|
// Software is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "../config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_UNNISTD_H
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_FCNTL_H
|
|
# include <fcntl.h>
|
|
#endif
|
|
|
|
#ifdef SHAPE
|
|
# include <X11/extensions/shape.h>
|
|
#endif
|
|
|
|
#include "XDisplay.h"
|
|
#include "Util.h"
|
|
#include <iostream>
|
|
#include <algorithm>
|
|
|
|
using std::cerr;
|
|
using std::endl;
|
|
|
|
std::string XDisplay::_app_name;
|
|
Window XDisplay::_last_bad_window = None;
|
|
|
|
/*
|
|
* X error handler to handle all X errors while the application is
|
|
* running.
|
|
*/
|
|
int XDisplay::errorHandler(Display *d, XErrorEvent *e) {
|
|
#ifdef DEBUG
|
|
char errtxt[128];
|
|
XGetErrorText(d, e->error_code, errtxt, sizeof(errtxt)/sizeof(char));
|
|
cerr << _app_name.c_str() << ": X error: " <<
|
|
errtxt << "(" << e->error_code << ") opcodes " <<
|
|
e->request_code << "/" << e->minor_code << endl;
|
|
cerr.flags(std::ios_base::hex);
|
|
cerr << " resource 0x" << e->resourceid << endl;
|
|
cerr.flags(std::ios_base::dec);
|
|
#endif
|
|
|
|
if (e->error_code == BadWindow)
|
|
_last_bad_window = e->resourceid;
|
|
|
|
return False;
|
|
}
|
|
|
|
|
|
XDisplay::XDisplay(const std::string &application_name, const char *dpyname) {
|
|
_app_name = application_name;
|
|
_grabs = 0;
|
|
_hasshape = false;
|
|
|
|
_display = XOpenDisplay(dpyname);
|
|
if (_display == NULL) {
|
|
cerr << "Could not open display. Connection to X server failed.\n";
|
|
::exit(2);
|
|
}
|
|
if (-1 == fcntl(ConnectionNumber(_display), F_SETFD, 1)) {
|
|
cerr << "Could not mark display connection as close-on-exec.\n";
|
|
::exit(2);
|
|
}
|
|
_name = XDisplayName(dpyname);
|
|
|
|
XSetErrorHandler(errorHandler);
|
|
|
|
#ifdef SHAPE
|
|
int waste;
|
|
_hasshape = XShapeQueryExtension(_display, &_shape_event_base, &waste);
|
|
#endif // SHAPE
|
|
|
|
#ifndef NOCLOBBER
|
|
getLockModifiers();
|
|
#endif
|
|
}
|
|
|
|
|
|
XDisplay::~XDisplay() {
|
|
std::for_each(_screens.begin(), _screens.end(), PointerAssassin());
|
|
XCloseDisplay(_display);
|
|
}
|
|
|
|
|
|
/*
|
|
* Grab the X server
|
|
*/
|
|
void XDisplay::grab() {
|
|
if (_grabs++ == 0)
|
|
XGrabServer(_display);
|
|
}
|
|
|
|
|
|
/*
|
|
* Release the X server from a grab
|
|
*/
|
|
void XDisplay::ungrab() {
|
|
if (--_grabs == 0)
|
|
XUngrabServer(_display);
|
|
}
|
|
|
|
|
|
/*
|
|
* Gets the next event on the queue from the X server.
|
|
*
|
|
* Returns: true if e contains a new event; false if there is no event to be
|
|
* returned.
|
|
*/
|
|
bool XDisplay::nextEvent(XEvent &e) {
|
|
if(!XPending(_display))
|
|
return false;
|
|
XNextEvent(_display, &e);
|
|
if (_last_bad_window != None) {
|
|
if (e.xany.window == _last_bad_window) {
|
|
cerr << "XDisplay::nextEvent(): Removing event for bad window from " <<
|
|
"event queue\n";
|
|
return false;
|
|
} else
|
|
_last_bad_window = None;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
int XDisplay::connectionNumber() const {
|
|
return ConnectionNumber(_display);
|
|
}
|
|
|
|
|
|
/*
|
|
* Creates a font cursor in the X server and returns it.
|
|
*/
|
|
Cursor createCursor(unsigned int shape) const {
|
|
return XCreateFontCursor(_display, shape);
|
|
}
|
|
|
|
|
|
#ifndef NOCLOBBER
|
|
void XDisplay::getLockModifers() {
|
|
NumLockMask = ScrollLockMask = 0;
|
|
|
|
const XModifierKeymap* const modmap = XGetModifierMapping(display);
|
|
if (modmap && modmap->max_keypermod > 0) {
|
|
const int mask_table[] = {
|
|
ShiftMask, LockMask, ControlMask, Mod1Mask,
|
|
Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask
|
|
};
|
|
const size_t size = (sizeof(mask_table) / sizeof(mask_table[0])) *
|
|
modmap->max_keypermod;
|
|
// get the values of the keyboard lock modifiers
|
|
// Note: Caps lock is not retrieved the same way as Scroll and Num lock
|
|
// since it doesn't need to be.
|
|
const KeyCode num_lock_code = XKeysymToKeycode(display, XK_Num_Lock);
|
|
const KeyCode scroll_lock_code = XKeysymToKeycode(display, XK_Scroll_Lock);
|
|
|
|
for (size_t cnt = 0; cnt < size; ++cnt) {
|
|
if (! modmap->modifiermap[cnt]) continue;
|
|
|
|
if (num_lock_code == modmap->modifiermap[cnt])
|
|
NumLockMask = mask_table[cnt / modmap->max_keypermod];
|
|
if (scroll_lock_code == modmap->modifiermap[cnt])
|
|
ScrollLockMask = mask_table[cnt / modmap->max_keypermod];
|
|
}
|
|
}
|
|
|
|
MaskList[0] = 0;
|
|
MaskList[1] = LockMask;
|
|
MaskList[2] = NumLockMask;
|
|
MaskList[3] = ScrollLockMask;
|
|
MaskList[4] = LockMask | NumLockMask;
|
|
MaskList[5] = NumLockMask | ScrollLockMask;
|
|
MaskList[6] = LockMask | ScrollLockMask;
|
|
MaskList[7] = LockMask | NumLockMask | ScrollLockMask;
|
|
|
|
if (modmap) XFreeModifiermap(const_cast<XModifierKeymap*>(modmap));
|
|
}
|
|
#endif // NOCLOBBER
|
|
|
|
unsigned int XDisplay::stripModifiers(const unsigned int state) const {
|
|
#ifndef NOCLOBBER
|
|
return state &= ~(NumLockMask() | ScrollLockMask | LockMask);
|
|
#else
|
|
return state &= ~LockMask;
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* Verifies that a window has not requested to be destroyed/unmapped, so
|
|
* if it is a valid window or not.
|
|
* Returns: true if the window is valid; false if it is no longer valid.
|
|
*/
|
|
bool XDisplay::validateWindow(Window window) {
|
|
XEvent event;
|
|
if (XCheckTypedWindowEvent(_display, window, DestroyNotify, &event)) {
|
|
XPutBackEvent(display, &event);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
* Grabs a button, but also grabs the button in every possible combination with
|
|
* the keyboard lock keys, so that they do not cancel out the event.
|
|
*/
|
|
void BaseDisplay::grabButton(unsigned int button, unsigned int modifiers,
|
|
Window grab_window, Bool owner_events,
|
|
unsigned int event_mask, int pointer_mode,
|
|
int keybaord_mode, Window confine_to,
|
|
Cursor cursor) const
|
|
{
|
|
#ifndef NOCLOBBER
|
|
for (size_t cnt = 0; cnt < 8; ++cnt)
|
|
XGrabButton(_display, button, modifiers | MaskList[cnt], grab_window,
|
|
owner_events, event_mask, pointer_mode, keybaord_mode,
|
|
confine_to, cursor);
|
|
#else // NOCLOBBER
|
|
XGrabButton(_display, button, modifiers, grab_window,
|
|
owner_events, event_mask, pointer_mode, keybaord_mode,
|
|
confine_to, cursor);
|
|
#endif // NOCLOBBER
|
|
}
|
|
|
|
|
|
/*
|
|
* Releases the grab on a button, and ungrabs all possible combinations of the
|
|
* keyboard lock keys.
|
|
*/
|
|
void BaseDisplay::ungrabButton(unsigned int button, unsigned int modifiers,
|
|
Window grab_window) const {
|
|
#ifndef NOCLOBBER
|
|
for (size_t cnt = 0; cnt < 8; ++cnt)
|
|
XUngrabButton(display, button, modifiers | MaskList[cnt], grab_window);
|
|
#else // NOCLOBBER
|
|
XUngrabButton(display, button, modifiers, grab_window);
|
|
#endif // NOCLOBBER
|
|
}
|