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// EventManager.cc
// Copyright (c) 2002 - 2006 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 "EventManager.hh"
#include "EventHandler.hh"
#include "FbWindow.hh"
#include "App.hh"
#ifdef DEBUG
#include <iostream>
using std::cerr;
using std::endl;
#endif // DEBUG
namespace FbTk {
EventManager *EventManager::instance() {
static EventManager ev;
return &ev;
}
EventManager::~EventManager() {
#ifdef DEBUG
if (m_eventhandlers.size() != 0)
cerr<<"FbTk::EventManager: Warning: unregistered eventhandlers!"<<endl;
#endif // DEBUG
}
void EventManager::handleEvent(XEvent &ev) {
dispatch(ev.xany.window, ev);
}
void EventManager::add(EventHandler &ev, const FbWindow &win) {
registerEventHandler(ev, win.window());
}
void EventManager::addParent(EventHandler &ev, const FbWindow &win) {
if (win.window() != 0)
m_parent[win.window()] = &ev;
}
void EventManager::remove(const FbWindow &win) {
unregisterEventHandler(win.window());
}
EventHandler *EventManager::find(Window win) {
return m_eventhandlers[win];
}
bool EventManager::grabKeyboard(Window win) {
int ret = XGrabKeyboard(App::instance()->display(), win, False,
GrabModeAsync, GrabModeAsync, CurrentTime);
return (ret == Success);
}
void EventManager::ungrabKeyboard() {
XUngrabKeyboard(App::instance()->display(), CurrentTime);
}
Window EventManager::getEventWindow(XEvent &ev) {
// we only have cases for events that differ from xany
switch (ev.type) {
case CreateNotify:
// XCreateWindowEvent
return ev.xcreatewindow.window;
break;
case DestroyNotify:
// XDestroyWindowEvent
return ev.xdestroywindow.window;
break;
case UnmapNotify:
// XUnmapEvent
return ev.xunmap.window;
break;
case MapNotify:
// XMapEvent
return ev.xmap.window;
break;
case MapRequest:
// XMapRequestEvent
return ev.xmaprequest.window;
break;
case ReparentNotify:
// XReparentEvent
return ev.xreparent.window;
break;
case ConfigureNotify:
// XConfigureNotify
return ev.xconfigure.window;
break;
case GravityNotify:
// XGravityNotify
return ev.xgravity.window;
break;
case ConfigureRequest:
// XConfigureRequestEvent
return ev.xconfigurerequest.window;
break;
case CirculateNotify:
// XCirculateEvent
return ev.xcirculate.window;
break;
case CirculateRequest:
// XCirculateRequestEvent
return ev.xcirculaterequest.window;
break;
default:
return ev.xany.window;
}
}
void EventManager::registerEventHandler(EventHandler &ev, Window win) {
if (win != None)
m_eventhandlers[win] = &ev;
}
void EventManager::unregisterEventHandler(Window win) {
if (win != None) {
m_eventhandlers.erase(win);
m_parent.erase(win);
}
}
void EventManager::dispatch(Window win, XEvent &ev, bool parent) {
EventHandler *evhand = 0;
if (parent) {
EventHandlerMap::iterator it = m_parent.find(win);
if (it == m_parent.end())
return;
else
evhand = it->second;
} else {
win = getEventWindow(ev);
EventHandlerMap::iterator it = m_eventhandlers.find(win);
if (it == m_eventhandlers.end())
return;
else
evhand = it->second;
}
if (evhand == 0)
return;
switch (ev.type) {
case KeyPress:
evhand->keyPressEvent(ev.xkey);
break;
case KeyRelease:
evhand->keyReleaseEvent(ev.xkey);
break;
case ButtonPress:
evhand->buttonPressEvent(ev.xbutton);
break;
case ButtonRelease:
evhand->buttonReleaseEvent(ev.xbutton);
break;
case MotionNotify:
evhand->motionNotifyEvent(ev.xmotion);
break;
case Expose:
evhand->exposeEvent(ev.xexpose);
break;
case EnterNotify:
if (ev.xcrossing.mode != NotifyGrab &&
ev.xcrossing.mode != NotifyUngrab)
evhand->enterNotifyEvent(ev.xcrossing);
break;
case LeaveNotify:
if (ev.xcrossing.mode != NotifyGrab &&
ev.xcrossing.mode != NotifyUngrab)
evhand->leaveNotifyEvent(ev.xcrossing);
break;
default:
evhand->handleEvent(ev);
break;
};
// find out which window is the parent and
// dispatch event
Window root, parent_win, *children = 0;
unsigned int num_children;
if (XQueryTree(FbTk::App::instance()->display(), win,
&root, &parent_win, &children, &num_children) != 0) {
if (children != 0)
XFree(children);
if (parent_win != 0 &&
parent_win != root) {
if (m_parent[parent_win] == 0)
return;
// dispatch event to parent
dispatch(parent_win, ev, true);
}
}
}
} // end namespace FbTk
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