src/bindings.cc (raw)
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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*- #include "config.h" #include "bindings.hh" #include "screen.hh" #include "openbox.hh" #include "client.hh" #include "frame.hh" #include "otk/display.hh" extern "C" { #include <X11/Xlib.h> #include "gettext.h" #define _(str) gettext(str) } #include <cstdlib> #include <algorithm> namespace ob { static bool buttonvalue(const std::string &button, unsigned int *val) { if (button == "Left") *val = 1; else if (button == "Middle") *val = 2; else if (button == "Right") *val = 3; else if (button == "Up") *val = 4; else if (button == "Down") *val = 5; else { // try convert to number int i = atoi(button.c_str()); if (i <= 0) return false; *val = i; } return true; } static bool modvalue(const std::string &mod, unsigned int *val) { if (mod == "C") { // control *val |= ControlMask; } else if (mod == "S") { // shift *val |= ShiftMask; } else if (mod == "A" || // alt/mod1 mod == "M" || mod == "Mod1" || mod == "M1") { *val |= Mod1Mask; } else if (mod == "Mod2" || // mod2 mod == "M2") { *val |= Mod2Mask; } else if (mod == "Mod3" || // mod3 mod == "M3") { *val |= Mod3Mask; } else if (mod == "W" || // windows/mod4 mod == "Mod4" || mod == "M4") { *val |= Mod4Mask; } else if (mod == "Mod5" || // mod5 mod == "M5") { *val |= Mod5Mask; } else { // invalid return false; } return true; } bool Bindings::translate(const std::string &str, Binding &b,bool askey) const { // parse out the base key name std::string::size_type keybegin = str.find_last_of('-'); keybegin = (keybegin == std::string::npos) ? 0 : keybegin + 1; std::string key(str, keybegin); // parse out the requested modifier keys unsigned int modval = 0; std::string::size_type begin = 0, end; while (begin != keybegin) { end = str.find_first_of('-', begin); std::string mod(str, begin, end-begin); if (!modvalue(mod, &modval)) { printf(_("Invalid modifier element in key binding: %s\n"), mod.c_str()); return false; } begin = end + 1; } // set the binding b.modifiers = modval; if (askey) { KeySym sym = XStringToKeysym(const_cast<char *>(key.c_str())); if (sym == NoSymbol) { printf(_("Invalid Key name in key binding: %s\n"), key.c_str()); return false; } if (!(b.key = XKeysymToKeycode(**otk::display, sym))) printf(_("No valid keycode for Key in key binding: %s\n"), key.c_str()); return b.key != 0; } else { return buttonvalue(key, &b.key); } } static void destroytree(KeyBindingTree *tree) { while (tree) { KeyBindingTree *c = tree->first_child; delete tree; tree = c; } } KeyBindingTree *Bindings::buildtree(const StringVect &keylist, KeyCallback callback, void *data) const { if (keylist.empty()) return 0; // nothing in the list.. return 0 KeyBindingTree *ret = 0, *p; StringVect::const_reverse_iterator it, end = keylist.rend(); for (it = keylist.rbegin(); it != end; ++it) { p = ret; ret = new KeyBindingTree(); if (!p) { // this is the first built node, the bottom node of the tree ret->chain = false; ret->callbacks.push_back(KeyCallbackData(callback, data)); } ret->first_child = p; if (!translate(*it, ret->binding)) { destroytree(ret); ret = 0; break; } } return ret; } Bindings::Bindings() : _curpos(&_keytree), _resetkey(0,0), _timer((otk::Timer *) 0), _keybgrab_callback(0, 0), _grabbed(0) { setResetKey("C-g"); // set the default reset key } Bindings::~Bindings() { if (_timer) delete _timer; if (_grabbed) { _grabbed = false; XUngrabKeyboard(**otk::display, CurrentTime); } removeAllKeys(); //removeAllButtons(); // this is done by each client as they are unmanaged removeAllEvents(); } void Bindings::assimilate(KeyBindingTree *node) { KeyBindingTree *a, *b, *tmp, *last; if (!_keytree.first_child) { // there are no nodes at this level yet _keytree.first_child = node; } else { a = _keytree.first_child; last = a; b = node; while (a) { last = a; if (a->binding != b->binding) { a = a->next_sibling; } else { tmp = b; b = b->first_child; delete tmp; a = a->first_child; } } if (last->binding != b->binding) last->next_sibling = b; else { last->first_child = b->first_child; delete b; } } } KeyBindingTree *Bindings::find(KeyBindingTree *search, bool *conflict) const { *conflict = false; KeyBindingTree *a, *b; a = _keytree.first_child; b = search; while (a && b) { if (a->binding != b->binding) { a = a->next_sibling; } else { if (a->chain == b->chain) { if (!a->chain) { // found it! (return the actual id, not the search's) return a; } } else { *conflict = true; return 0; // the chain status' don't match (conflict!) } b = b->first_child; a = a->first_child; } } return 0; // it just isn't in here } bool Bindings::addKey(const StringVect &keylist, KeyCallback callback, void *data) { KeyBindingTree *tree, *t; bool conflict; if (!(tree = buildtree(keylist, callback, data))) return false; // invalid binding requested t = find(tree, &conflict); if (conflict) { // conflicts with another binding destroytree(tree); return false; } if (t) { // already bound to something t->callbacks.push_back(KeyCallbackData(callback, data)); destroytree(tree); } else { // grab the server here to make sure no key pressed go missed otk::display->grab(); grabKeys(false); // assimilate this built tree into the main tree assimilate(tree); // assimilation destroys/uses the tree grabKeys(true); otk::display->ungrab(); } return true; } /* bool Bindings::removeKey(const StringVect &keylist, KeyCallback callback, void *data) { assert(false); // XXX: function not implemented yet KeyBindingTree *tree; bool conflict; if (!(tree = buildtree(keylist, 0))) return false; // invalid binding requested KeyBindingTree *t = find(tree, &conflict); if (t) { KeyCallbackList::iterator it = std::find(t->callbacks.begin(), t->callbacks.end(), callback); if (it != t->callbacks.end()) { // grab the server here to make sure no key pressed go missed otk::display->grab(); grabKeys(false); _curpos = &_keytree; // XXX do shit here ... Py_XDECREF(*it); grabKeys(true); otk::display->ungrab(); return true; } } return false; } */ void Bindings::setResetKey(const std::string &key) { Binding b(0, 0); if (translate(key, b)) { _resetkey.key = b.key; _resetkey.modifiers = b.modifiers; } } static void remove_branch(KeyBindingTree *first) { KeyBindingTree *p = first; while (p) { if (p->first_child) remove_branch(p->first_child); KeyBindingTree *s = p->next_sibling; while(!p->callbacks.empty()) { p->callbacks.pop_front(); } delete p; p = s; } } void Bindings::removeAllKeys() { grabKeys(false); if (_keytree.first_child) { remove_branch(_keytree.first_child); _keytree.first_child = 0; } grabKeys(true); } void Bindings::grabKeys(bool grab) { for (int i = 0; i < ScreenCount(**otk::display); ++i) { Screen *sc = openbox->screen(i); if (!sc) continue; // not a managed screen Window root = otk::display->screenInfo(i)->rootWindow(); if (!grab) { otk::display->ungrabAllKeys(root); continue; } KeyBindingTree *p = _keytree.first_child; while (p) { otk::display->grabKey(p->binding.key, p->binding.modifiers, root, false, GrabModeAsync, GrabModeSync, false); p = p->next_sibling; } } } bool Bindings::grabKeyboard(int screen, KeyCallback callback, void *data) { assert(callback); if (_keybgrab_callback.callback) return false; // already grabbed if (!openbox->screen(screen)) return false; // the screen is not managed Window root = otk::display->screenInfo(screen)->rootWindow(); if (XGrabKeyboard(**otk::display, root, false, GrabModeAsync, GrabModeAsync, CurrentTime)) return false; _keybgrab_callback.callback = callback; _keybgrab_callback.data = data; return true; } void Bindings::ungrabKeyboard() { if (!_keybgrab_callback.callback) return; // not grabbed _keybgrab_callback = KeyCallbackData(0, 0); if (!_grabbed) /* don't release out from under keychains */ XUngrabKeyboard(**otk::display, CurrentTime); XUngrabPointer(**otk::display, CurrentTime); } bool Bindings::grabPointer(int screen) { if (!openbox->screen(screen)) return false; // the screen is not managed Window root = otk::display->screenInfo(screen)->rootWindow(); XGrabPointer(**otk::display, root, false, 0, GrabModeAsync, GrabModeAsync, None, None, CurrentTime); return true; } void Bindings::ungrabPointer() { XUngrabPointer(**otk::display, CurrentTime); } void Bindings::fireKey(int screen, unsigned int modifiers, unsigned int key, Time time, KeyAction::KA action) { if (_keybgrab_callback.callback) { Client *c = openbox->focusedClient(); KeyData data(screen, c, time, modifiers, key, action); _keybgrab_callback.fire(&data); } // KeyRelease events only occur during keyboard grabs if (action == KeyAction::Release) return; if (key == _resetkey.key && modifiers == _resetkey.modifiers) { resetChains(this); XAllowEvents(**otk::display, AsyncKeyboard, CurrentTime); } else { KeyBindingTree *p = _curpos->first_child; while (p) { if (p->binding.key == key && p->binding.modifiers == modifiers) { if (p->chain) { if (_timer) delete _timer; _timer = new otk::Timer(5000, // 5 second timeout (otk::Timer::TimeoutHandler)resetChains, this); if (!_grabbed && !_keybgrab_callback.callback) { Window root = otk::display->screenInfo(screen)->rootWindow(); //grab should never fail because we should have a sync grab at //this point XGrabKeyboard(**otk::display, root, 0, GrabModeAsync, GrabModeSync, CurrentTime); } _grabbed = true; _curpos = p; XAllowEvents(**otk::display, AsyncKeyboard, CurrentTime); } else { Client *c = openbox->focusedClient(); KeyData data(screen, c, time, modifiers, key, action); KeyCallbackList::iterator it, end = p->callbacks.end(); for (it = p->callbacks.begin(); it != end; ++it) it->fire(&data); XAllowEvents(**otk::display, AsyncKeyboard, CurrentTime); resetChains(this); } break; } p = p->next_sibling; } } } void Bindings::resetChains(Bindings *self) { if (self->_timer) { delete self->_timer; self->_timer = (otk::Timer *) 0; } self->_curpos = &self->_keytree; if (self->_grabbed) { self->_grabbed = false; if (!self->_keybgrab_callback.callback) XUngrabKeyboard(**otk::display, CurrentTime); } } bool Bindings::addButton(const std::string &but, MouseContext::MC context, MouseAction::MA action, MouseCallback callback, void *data) { assert(context >= 0 && context < MouseContext::NUM_MOUSE_CONTEXT); assert(action >= 0 && action < MouseAction::NUM_MOUSE_ACTION); Binding b(0,0); if (!translate(but, b, false)) return false; ButtonBindingList::iterator it, end = _buttons[context].end(); // look for a duplicate binding for (it = _buttons[context].begin(); it != end; ++it) if ((*it)->binding.key == b.key && (*it)->binding.modifiers == b.modifiers) { break; } ButtonBinding *bind; // the binding didnt exist yet, add it if (it == end) { bind = new ButtonBinding(); bind->binding.key = b.key; bind->binding.modifiers = b.modifiers; _buttons[context].push_back(bind); // grab the button on all clients for (int sn = 0; sn < ScreenCount(**otk::display); ++sn) { Screen *s = openbox->screen(sn); if (!s) continue; // not managed Client::List::iterator c_it, c_end = s->clients.end(); for (c_it = s->clients.begin(); c_it != c_end; ++c_it) { grabButton(true, bind->binding, context, *c_it); } } } else bind = *it; bind->callbacks[action].push_back(MouseCallbackData(callback, data)); return true; } void Bindings::removeAllButtons() { for (int i = 0; i < MouseContext::NUM_MOUSE_CONTEXT; ++i) { ButtonBindingList::iterator it, end = _buttons[i].end(); for (it = _buttons[i].begin(); it != end; ++it) { for (int a = 0; a < MouseAction::NUM_MOUSE_ACTION; ++a) { while (!(*it)->callbacks[a].empty()) { (*it)->callbacks[a].pop_front(); } } // ungrab the button on all clients for (int sn = 0; sn < ScreenCount(**otk::display); ++sn) { Screen *s = openbox->screen(sn); if (!s) continue; // not managed Client::List::iterator c_it, c_end = s->clients.end(); for (c_it = s->clients.begin(); c_it != c_end; ++c_it) { grabButton(false, (*it)->binding, (MouseContext::MC)i, *c_it); } } } } } void Bindings::grabButton(bool grab, const Binding &b, MouseContext::MC context, Client *client) { Window win; int mode = GrabModeAsync; unsigned int mask; switch(context) { case MouseContext::Frame: win = client->frame->window(); mask = ButtonPressMask | ButtonMotionMask | ButtonReleaseMask; break; case MouseContext::Window: win = client->frame->plate(); mode = GrabModeSync; // this is handled in fireButton mask = ButtonPressMask; // can't catch more than this with Sync mode // the release event is manufactured by the // master buttonPressHandler break; default: // any other elements already get button events, don't grab on them return; } if (grab) otk::display->grabButton(b.key, b.modifiers, win, false, mask, mode, GrabModeAsync, None, None, false); else otk::display->ungrabButton(b.key, b.modifiers, win); } void Bindings::grabButtons(bool grab, Client *client) { for (int i = 0; i < MouseContext::NUM_MOUSE_CONTEXT; ++i) { ButtonBindingList::iterator it, end = _buttons[i].end(); for (it = _buttons[i].begin(); it != end; ++it) grabButton(grab, (*it)->binding, (MouseContext::MC)i, client); } } void Bindings::fireButton(MouseData *data) { if (data->context == MouseContext::Window) { // Replay the event, so it goes to the client XAllowEvents(**otk::display, ReplayPointer, data->time); } ButtonBindingList::iterator it, end = _buttons[data->context].end(); for (it = _buttons[data->context].begin(); it != end; ++it) if ((*it)->binding.key == data->button && (*it)->binding.modifiers == data->state) { MouseCallbackList::iterator c_it, c_end = (*it)->callbacks[data->action].end(); for (c_it = (*it)->callbacks[data->action].begin(); c_it != c_end; ++c_it) c_it->fire(data); } } bool Bindings::addEvent(EventAction::EA action, EventCallback callback, void *data) { if (action < 0 || action >= EventAction::NUM_EVENT_ACTION) { return false; } #ifdef XKB if (action == EventAction::Bell && _eventlist[action].empty()) XkbSelectEvents(**otk::display, XkbUseCoreKbd, XkbBellNotifyMask, XkbBellNotifyMask); #endif // XKB _eventlist[action].push_back(EventCallbackData(callback, data)); return true; } bool Bindings::removeEvent(EventAction::EA action, EventCallback callback, void *data) { if (action < 0 || action >= EventAction::NUM_EVENT_ACTION) { return false; } EventCallbackList::iterator it = std::find(_eventlist[action].begin(), _eventlist[action].end(), EventCallbackData(callback, data)); if (it != _eventlist[action].end()) { _eventlist[action].erase(it); #ifdef XKB if (action == EventAction::Bell && _eventlist[action].empty()) XkbSelectEvents(**otk::display, XkbUseCoreKbd, XkbBellNotifyMask, 0); #endif // XKB return true; } return false; } void Bindings::removeAllEvents() { for (int i = 0; i < EventAction::NUM_EVENT_ACTION; ++i) { while (!_eventlist[i].empty()) { _eventlist[i].pop_front(); } } } void Bindings::fireEvent(EventData *data) { EventCallbackList::iterator c_it, c_end = _eventlist[data->action].end(); for (c_it = _eventlist[data->action].begin(); c_it != c_end; ++c_it) c_it->fire(data); } } |