// EventManager.hh // Copyright (c) 2002 Henrik Kinnunen (fluxgen at fluxbox dot org) // // 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. #include <map> #include <X11/Xlib.h> namespace FbTk { class FbWindow; class EventHandler; /** singleton mediator for EventHandlers */ class EventManager { public: static EventManager *instance(); void handleEvent(XEvent &ev); // adds a parent to listen to the childrens events void addParent(EventHandler &ev, const FbWindow &parent); void add(EventHandler &ev, const FbWindow &win); void remove(const FbWindow &win); void add(EventHandler &ev, Window win) { registerEventHandler(ev, win); } void remove(Window win) { unregisterEventHandler(win); } bool grabKeyboard(EventHandler &ev, Window win); void ungrabKeyboard(); EventHandler *grabbingKeyboard() { return m_grabbing_keyboard; } EventHandler *find(Window win); // Some events have the parent window as the xany.window // This function always returns the actual window member of the event structure static Window getEventWindow(XEvent &ev); void registerEventHandler(EventHandler &ev, Window win); void unregisterEventHandler(Window win); private: EventManager(): m_grabbing_keyboard(0) { } ~EventManager(); void dispatch(Window win, XEvent &event, bool parent = false); typedef std::map<Window, EventHandler *> EventHandlerMap; EventHandlerMap m_eventhandlers; EventHandlerMap m_parent; EventHandler *m_grabbing_keyboard; }; } //end namespace FbTk