openbox/src/screen.cc

796 lines
23 KiB
C++

// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
#ifdef HAVE_CONFIG_H
# include "../config.h"
#endif
extern "C" {
#ifdef HAVE_STDIO_H
# include <stdio.h>
#endif // HAVE_STDIO_H
#ifdef HAVE_STRING_H
# include <string.h>
#endif // HAVE_STRING_H
#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
#endif // HAVE_UNISTD_H
#include "gettext.h"
#define _(str) gettext(str)
}
#include "screen.hh"
#include "client.hh"
#include "openbox.hh"
#include "frame.hh"
#include "bindings.hh"
#include "python.hh"
#include "otk/display.hh"
#include "otk/property.hh"
#include <vector>
#include <algorithm>
static bool running;
static int anotherWMRunning(Display *display, XErrorEvent *) {
printf(_("Another window manager already running on display %s.\n"),
DisplayString(display));
running = true;
return -1;
}
namespace ob {
Screen::Screen(int screen)
: WidgetBase(WidgetBase::Type_Root),
_number(screen)
{
assert(screen >= 0); assert(screen < ScreenCount(**otk::display));
_info = otk::display->screenInfo(screen);
::running = false;
XErrorHandler old = XSetErrorHandler(::anotherWMRunning);
XSelectInput(**otk::display, _info->rootWindow(),
Screen::event_mask);
XSync(**otk::display, false);
XSetErrorHandler(old);
_managed = !::running;
if (! _managed) return; // was unable to manage the screen
printf(_("Managing screen %d: visual 0x%lx, depth %d\n"),
_number, XVisualIDFromVisual(_info->visual()), _info->depth());
otk::Property::set(_info->rootWindow(), otk::Property::atoms.openbox_pid,
otk::Property::atoms.cardinal, (unsigned long) getpid());
// set the mouse cursor for the root window (the default cursor)
XDefineCursor(**otk::display, _info->rootWindow(),
openbox->cursors().session);
// initialize the shit that is used for all drawing on the screen
_image_control = new otk::ImageControl(_info, true);
_image_control->installRootColormap();
_root_cmap_installed = True;
// initialize the screen's style
_style.setImageControl(_image_control);
otk::ustring stylepath;
python_get_string("theme", &stylepath);
otk::Configuration sconfig(false);
sconfig.setFile(otk::expandTilde(stylepath.c_str()));
if (!sconfig.load()) {
sconfig.setFile(otk::expandTilde(DEFAULTSTYLE));
if (!sconfig.load()) {
printf(_("Unable to load default style: %s. Aborting.\n"), DEFAULTSTYLE);
::exit(1);
}
}
_style.load(sconfig);
// set up notification of netwm support
changeSupportedAtoms();
// Set the netwm properties for geometry
unsigned long geometry[] = { _info->width(),
_info->height() };
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_desktop_geometry,
otk::Property::atoms.cardinal, geometry, 2);
// Set the net_desktop_names property
std::vector<otk::ustring> names;
python_get_stringlist("desktop_names", &names);
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_desktop_names,
otk::Property::utf8, names);
// the above set() will cause the updateDesktopNames to fire right away so
// we have a list of desktop names
if (!python_get_long("number_of_desktops", &_num_desktops))
_num_desktops = 1;
changeNumDesktops(_num_desktops); // set the hint
_desktop = 0;
changeDesktop(0); // set the hint
// create the window which gets focus when no clients get it
XSetWindowAttributes attr;
attr.override_redirect = true;
_focuswindow = XCreateWindow(**otk::display, _info->rootWindow(),
-100, -100, 1, 1, 0, 0, InputOnly,
_info->visual(), CWOverrideRedirect, &attr);
XMapRaised(**otk::display, _focuswindow);
// these may be further updated if any pre-existing windows are found in
// the manageExising() function
changeClientList(); // initialize the client lists, which will be empty
calcArea(); // initialize the available working area
// register this class as the event handler for the root window
openbox->registerHandler(_info->rootWindow(), this);
// call the python Startup callbacks
EventData data(_number, 0, EventShutdown, 0);
openbox->bindings()->fireEvent(&data);
}
Screen::~Screen()
{
if (! _managed) return;
XSelectInput(**otk::display, _info->rootWindow(), NoEventMask);
// unmanage all windows
while (!clients.empty())
unmanageWindow(clients.front());
// call the python Shutdown callbacks
EventData data(_number, 0, EventShutdown, 0);
openbox->bindings()->fireEvent(&data);
XDestroyWindow(**otk::display, _focuswindow);
XDestroyWindow(**otk::display, _supportwindow);
delete _image_control;
}
void Screen::manageExisting()
{
unsigned int i, j, nchild;
Window r, p, *children;
XQueryTree(**otk::display, _info->rootWindow(), &r, &p,
&children, &nchild);
// preen the window list of all icon windows... for better dockapp support
for (i = 0; i < nchild; i++) {
if (children[i] == None) continue;
XWMHints *wmhints = XGetWMHints(**otk::display,
children[i]);
if (wmhints) {
if ((wmhints->flags & IconWindowHint) &&
(wmhints->icon_window != children[i])) {
for (j = 0; j < nchild; j++) {
if (children[j] == wmhints->icon_window) {
children[j] = None;
break;
}
}
}
XFree(wmhints);
}
}
// manage shown windows
for (i = 0; i < nchild; ++i) {
if (children[i] == None)
continue;
XWindowAttributes attrib;
if (XGetWindowAttributes(**otk::display, children[i], &attrib)) {
if (attrib.override_redirect) continue;
if (attrib.map_state != IsUnmapped) {
manageWindow(children[i]);
}
}
}
XFree(children);
}
void Screen::updateStrut()
{
_strut.left = _strut.right = _strut.top = _strut.bottom = 0;
Client::List::iterator it, end = clients.end();
for (it = clients.begin(); it != end; ++it) {
const otk::Strut &s = (*it)->strut();
_strut.left = std::max(_strut.left, s.left);
_strut.right = std::max(_strut.right, s.right);
_strut.top = std::max(_strut.top, s.top);
_strut.bottom = std::max(_strut.bottom, s.bottom);
}
calcArea();
}
void Screen::calcArea()
{
otk::Rect old_area = _area;
/*
#ifdef XINERAMA
// reset to the full areas
if (isXineramaActive())
xineramaUsableArea = getXineramaAreas();
#endif // XINERAMA
*/
_area.setRect(_strut.left, _strut.top,
_info->width() - (_strut.left + _strut.right),
_info->height() - (_strut.top + _strut.bottom));
/*
#ifdef XINERAMA
if (isXineramaActive()) {
// keep each of the ximerama-defined areas inside the strut
RectList::iterator xit, xend = xineramaUsableArea.end();
for (xit = xineramaUsableArea.begin(); xit != xend; ++xit) {
if (xit->x() < usableArea.x()) {
xit->setX(usableArea.x());
xit->setWidth(xit->width() - usableArea.x());
}
if (xit->y() < usableArea.y()) {
xit->setY(usableArea.y());
xit->setHeight(xit->height() - usableArea.y());
}
if (xit->x() + xit->width() > usableArea.width())
xit->setWidth(usableArea.width() - xit->x());
if (xit->y() + xit->height() > usableArea.height())
xit->setHeight(usableArea.height() - xit->y());
}
}
#endif // XINERAMA
*/
if (old_area != _area)
// XXX: re-maximize windows
changeWorkArea();
}
void Screen::changeSupportedAtoms()
{
// create the netwm support window
_supportwindow = XCreateSimpleWindow(**otk::display,
_info->rootWindow(),
0, 0, 1, 1, 0, 0, 0);
// set supporting window
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_supporting_wm_check,
otk::Property::atoms.window, _supportwindow);
//set properties on the supporting window
otk::Property::set(_supportwindow, otk::Property::atoms.net_wm_name,
otk::Property::utf8, "Openbox");
otk::Property::set(_supportwindow,
otk::Property::atoms.net_supporting_wm_check,
otk::Property::atoms.window, _supportwindow);
Atom supported[] = {
otk::Property::atoms.net_current_desktop,
otk::Property::atoms.net_number_of_desktops,
otk::Property::atoms.net_desktop_geometry,
otk::Property::atoms.net_desktop_viewport,
otk::Property::atoms.net_active_window,
otk::Property::atoms.net_workarea,
otk::Property::atoms.net_client_list,
otk::Property::atoms.net_client_list_stacking,
otk::Property::atoms.net_desktop_names,
otk::Property::atoms.net_close_window,
otk::Property::atoms.net_wm_name,
otk::Property::atoms.net_wm_visible_name,
otk::Property::atoms.net_wm_icon_name,
otk::Property::atoms.net_wm_visible_icon_name,
/*
otk::Property::atoms.net_wm_desktop,
*/
otk::Property::atoms.net_wm_strut,
otk::Property::atoms.net_wm_window_type,
otk::Property::atoms.net_wm_window_type_desktop,
otk::Property::atoms.net_wm_window_type_dock,
otk::Property::atoms.net_wm_window_type_toolbar,
otk::Property::atoms.net_wm_window_type_menu,
otk::Property::atoms.net_wm_window_type_utility,
otk::Property::atoms.net_wm_window_type_splash,
otk::Property::atoms.net_wm_window_type_dialog,
otk::Property::atoms.net_wm_window_type_normal,
/*
otk::Property::atoms.net_wm_moveresize,
otk::Property::atoms.net_wm_moveresize_size_topleft,
otk::Property::atoms.net_wm_moveresize_size_topright,
otk::Property::atoms.net_wm_moveresize_size_bottomleft,
otk::Property::atoms.net_wm_moveresize_size_bottomright,
otk::Property::atoms.net_wm_moveresize_move,
*/
/*
otk::Property::atoms.net_wm_allowed_actions,
otk::Property::atoms.net_wm_action_move,
otk::Property::atoms.net_wm_action_resize,
otk::Property::atoms.net_wm_action_shade,
otk::Property::atoms.net_wm_action_maximize_horz,
otk::Property::atoms.net_wm_action_maximize_vert,
otk::Property::atoms.net_wm_action_change_desktop,
otk::Property::atoms.net_wm_action_close,
*/
otk::Property::atoms.net_wm_state,
otk::Property::atoms.net_wm_state_modal,
otk::Property::atoms.net_wm_state_maximized_vert,
otk::Property::atoms.net_wm_state_maximized_horz,
otk::Property::atoms.net_wm_state_shaded,
otk::Property::atoms.net_wm_state_skip_taskbar,
otk::Property::atoms.net_wm_state_skip_pager,
otk::Property::atoms.net_wm_state_hidden,
otk::Property::atoms.net_wm_state_fullscreen,
otk::Property::atoms.net_wm_state_above,
otk::Property::atoms.net_wm_state_below,
};
const int num_supported = sizeof(supported)/sizeof(Atom);
otk::Property::set(_info->rootWindow(), otk::Property::atoms.net_supported,
otk::Property::atoms.atom, supported, num_supported);
}
void Screen::changeClientList()
{
Window *windows;
unsigned int size = clients.size();
// create an array of the window ids
if (size > 0) {
Window *win_it;
windows = new Window[size];
win_it = windows;
Client::List::const_iterator it = clients.begin();
const Client::List::const_iterator end = clients.end();
for (; it != end; ++it, ++win_it)
*win_it = (*it)->window();
} else
windows = (Window*) 0;
otk::Property::set(_info->rootWindow(), otk::Property::atoms.net_client_list,
otk::Property::atoms.window, windows, size);
if (size)
delete [] windows;
changeStackingList();
}
void Screen::changeStackingList()
{
Window *windows;
unsigned int size = _stacking.size();
assert(size == clients.size()); // just making sure.. :)
// create an array of the window ids (from bottom to top, reverse order!)
if (size > 0) {
Window *win_it;
windows = new Window[size];
win_it = windows;
Client::List::const_reverse_iterator it = _stacking.rbegin();
const Client::List::const_reverse_iterator end = _stacking.rend();
for (; it != end; ++it, ++win_it)
*win_it = (*it)->window();
} else
windows = (Window*) 0;
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_client_list_stacking,
otk::Property::atoms.window, windows, size);
if (size)
delete [] windows;
}
void Screen::changeWorkArea() {
unsigned long *dims = new unsigned long[4 * _num_desktops];
for (long i = 0; i < _num_desktops; ++i) {
// XXX: this could be different for each workspace
dims[(i * 4) + 0] = _area.x();
dims[(i * 4) + 1] = _area.y();
dims[(i * 4) + 2] = _area.width();
dims[(i * 4) + 3] = _area.height();
}
otk::Property::set(_info->rootWindow(), otk::Property::atoms.net_workarea,
otk::Property::atoms.cardinal, dims, 4 * _num_desktops);
delete [] dims;
}
void Screen::manageWindow(Window window)
{
Client *client = 0;
XWMHints *wmhint;
XSetWindowAttributes attrib_set;
otk::display->grab();
// is the window a docking app
if ((wmhint = XGetWMHints(**otk::display, window))) {
if ((wmhint->flags & StateHint) &&
wmhint->initial_state == WithdrawnState) {
//slit->addClient(w); // XXX: make dock apps work!
otk::display->ungrab();
XFree(wmhint);
return;
}
XFree(wmhint);
}
// choose the events we want to receive on the CLIENT window
attrib_set.event_mask = Client::event_mask;
attrib_set.do_not_propagate_mask = Client::no_propagate_mask;
XChangeWindowAttributes(**otk::display, window,
CWEventMask|CWDontPropagate, &attrib_set);
// create the Client class, which gets all of the hints on the window
client = new Client(_number, window);
// register for events
openbox->registerHandler(window, client);
// add to the wm's map
openbox->addClient(window, client);
// we dont want a border on the client
client->toggleClientBorder(false);
// specify that if we exit, the window should not be destroyed and should be
// reparented back to root automatically
XChangeSaveSet(**otk::display, window, SetModeInsert);
if (!(openbox->state() == Openbox::State_Starting ||
client->positionRequested())) {
// position the window intelligenty .. hopefully :)
// call the python PLACEWINDOW binding
EventData data(_number, client, EventPlaceWindow, 0);
openbox->bindings()->fireEvent(&data);
}
// create the decoration frame for the client window
client->frame = new Frame(client, &_style);
// add to the wm's map
openbox->addClient(client->frame->window(), client);
openbox->addClient(client->frame->plate(), client);
openbox->addClient(client->frame->titlebar(), client);
openbox->addClient(client->frame->label(), client);
openbox->addClient(client->frame->button_max(), client);
openbox->addClient(client->frame->button_iconify(), client);
openbox->addClient(client->frame->button_stick(), client);
openbox->addClient(client->frame->button_close(), client);
openbox->addClient(client->frame->handle(), client);
openbox->addClient(client->frame->grip_left(), client);
openbox->addClient(client->frame->grip_right(), client);
// reparent the client to the frame
client->frame->grabClient();
// if on the current desktop.. (or all desktops)
if (client->desktop() == _desktop ||
client->desktop() == (signed)0xffffffff) {
client->frame->show();
}
// XXX: handle any requested states such as maximized
otk::display->ungrab();
// add to the screen's list
clients.push_back(client);
// this puts into the stacking order, then raises it
_stacking.push_back(client);
raiseWindow(client);
// update the root properties
changeClientList();
openbox->bindings()->grabButtons(true, client);
// call the python NEWWINDOW binding
EventData data(_number, client, EventNewWindow, 0);
openbox->bindings()->fireEvent(&data);
#ifdef DEBUG
printf("Managed window 0x%lx\n", window);
#endif
}
void Screen::unmanageWindow(Client *client)
{
Frame *frame = client->frame;
// call the python CLOSEWINDOW binding
EventData data(_number, client, EventCloseWindow, 0);
openbox->bindings()->fireEvent(&data);
openbox->bindings()->grabButtons(false, client);
// remove from the wm's map
openbox->removeClient(client->window());
openbox->removeClient(frame->window());
openbox->removeClient(frame->plate());
openbox->removeClient(frame->titlebar());
openbox->removeClient(frame->label());
openbox->removeClient(frame->button_max());
openbox->removeClient(frame->button_iconify());
openbox->removeClient(frame->button_stick());
openbox->removeClient(frame->button_close());
openbox->removeClient(frame->handle());
openbox->removeClient(frame->grip_left());
openbox->removeClient(frame->grip_right());
// unregister for handling events
openbox->clearHandler(client->window());
// remove the window from our save set
XChangeSaveSet(**otk::display, client->window(), SetModeDelete);
// we dont want events no more
XSelectInput(**otk::display, client->window(), NoEventMask);
frame->hide();
// give the client its border back
client->toggleClientBorder(true);
// reparent the window out of the frame
frame->releaseClient();
delete client->frame;
client->frame = 0;
// remove from the stacking order
_stacking.remove(client);
// remove from the screen's list
clients.remove(client);
// unfocus the client (calls the focus callbacks)
client->unfocus();
#ifdef DEBUG
printf("Unmanaged window 0x%lx\n", client->window());
#endif
delete client;
// update the root properties
changeClientList();
}
void Screen::lowerWindow(Client *client)
{
Window wins[2]; // only ever restack 2 windows.
assert(!_stacking.empty()); // this would be bad
Client::List::iterator it = --_stacking.end();
Client::List::const_iterator end = _stacking.begin();
for (; it != end && (*it)->layer() < client->layer(); --it);
if (*it == client) return; // already the bottom, return
wins[0] = (*it)->frame->window();
wins[1] = client->frame->window();
_stacking.remove(client);
_stacking.insert(++it, client);
XRestackWindows(**otk::display, wins, 2);
changeStackingList();
}
void Screen::raiseWindow(Client *client)
{
Window wins[2]; // only ever restack 2 windows.
assert(!_stacking.empty()); // this would be bad
// remove the client before looking so we can't run into ourselves
_stacking.remove(client);
Client::List::iterator it = _stacking.begin();
Client::List::const_iterator end = _stacking.end();
// the stacking list is from highest to lowest
for (; it != end && (*it)->layer() > client->layer(); ++it);
/*
if our new position is the top, we want to stack under the _focuswindow
otherwise, we want to stack under the previous window in the stack.
*/
wins[0] = (it == _stacking.begin() ? _focuswindow :
((*(--Client::List::const_iterator(it)))->frame->window()));
wins[1] = client->frame->window();
_stacking.insert(it, client);
XRestackWindows(**otk::display, wins, 2);
changeStackingList();
}
void Screen::changeDesktop(long desktop)
{
if (!(desktop >= 0 && desktop < _num_desktops)) return;
printf("Moving to desktop %ld\n", desktop);
long old = _desktop;
_desktop = desktop;
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_current_desktop,
otk::Property::atoms.cardinal, _desktop);
if (old == _desktop) return;
Client::List::iterator it, end = clients.end();
for (it = clients.begin(); it != end; ++it) {
if ((*it)->desktop() == old) {
(*it)->frame->hide();
} else if ((*it)->desktop() == _desktop) {
(*it)->frame->show();
}
}
// force the callbacks to fire
if (!openbox->focusedClient())
openbox->setFocusedClient(0);
}
void Screen::changeNumDesktops(long num)
{
assert(num > 0);
if (!(num > 0)) return;
// XXX: move windows on desktops that will no longer exist!
_num_desktops = num;
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_number_of_desktops,
otk::Property::atoms.cardinal, _num_desktops);
// set the viewport hint
unsigned long *viewport = new unsigned long[_num_desktops * 2];
memset(viewport, 0, sizeof(unsigned long) * _num_desktops * 2);
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_desktop_viewport,
otk::Property::atoms.cardinal,
viewport, _num_desktops * 2);
delete [] viewport;
// update the work area hint
changeWorkArea();
}
void Screen::updateDesktopNames()
{
unsigned long num = (unsigned) -1;
if (!otk::Property::get(_info->rootWindow(),
otk::Property::atoms.net_desktop_names,
otk::Property::utf8, &num, &_desktop_names))
_desktop_names.clear();
while ((long)_desktop_names.size() < _num_desktops)
_desktop_names.push_back("Unnamed");
}
void Screen::setDesktopName(long i, const otk::ustring &name)
{
assert(i >= 0);
if (i >= _num_desktops) return;
otk::Property::StringVect newnames = _desktop_names;
newnames[i] = name;
otk::Property::set(_info->rootWindow(),
otk::Property::atoms.net_desktop_names,
otk::Property::utf8, newnames);
}
void Screen::propertyHandler(const XPropertyEvent &e)
{
otk::EventHandler::propertyHandler(e);
// compress changes to a single property into a single change
XEvent ce;
while (XCheckTypedEvent(**otk::display, e.type, &ce)) {
// XXX: it would be nice to compress ALL changes to a property, not just
// changes in a row without other props between.
if (ce.xproperty.atom != e.atom) {
XPutBackEvent(**otk::display, &ce);
break;
}
}
if (e.atom == otk::Property::atoms.net_desktop_names)
updateDesktopNames();
}
void Screen::clientMessageHandler(const XClientMessageEvent &e)
{
otk::EventHandler::clientMessageHandler(e);
if (e.format != 32) return;
if (e.message_type == otk::Property::atoms.net_current_desktop) {
changeDesktop(e.data.l[0]);
} else if (e.message_type == otk::Property::atoms.net_number_of_desktops) {
changeNumDesktops(e.data.l[0]);
}
// XXX: so many client messages to handle here! ..or not.. they go to clients
}
void Screen::mapRequestHandler(const XMapRequestEvent &e)
{
otk::EventHandler::mapRequestHandler(e);
#ifdef DEBUG
printf("MapRequest for 0x%lx\n", e.window);
#endif // DEBUG
/*
MapRequest events come here even after the window exists instead of going
right to the client window, because of how they are sent and their struct
layout.
*/
Client *c = openbox->findClient(e.window);
if (c) {
// send a net_active_window message
XEvent ce;
ce.xclient.type = ClientMessage;
ce.xclient.message_type = otk::Property::atoms.net_active_window;
ce.xclient.display = **otk::display;
ce.xclient.window = c->window();
ce.xclient.format = 32;
ce.xclient.data.l[0] = 0l;
ce.xclient.data.l[1] = 0l;
ce.xclient.data.l[2] = 0l;
ce.xclient.data.l[3] = 0l;
ce.xclient.data.l[4] = 0l;
XSendEvent(**otk::display, _info->rootWindow(), false,
SubstructureRedirectMask | SubstructureNotifyMask,
&ce);
} else
manageWindow(e.window);
}
}